U.S. patent application number 11/385512 was filed with the patent office on 2007-05-31 for exercise treadmill for pulling and dragging action.
Invention is credited to Joseph K. Ellis.
Application Number | 20070123396 11/385512 |
Document ID | / |
Family ID | 40076750 |
Filed Date | 2007-05-31 |
United States Patent
Application |
20070123396 |
Kind Code |
A1 |
Ellis; Joseph K. |
May 31, 2007 |
Exercise treadmill for pulling and dragging action
Abstract
An exercise treadmill of the type having an endless moveable
surface looped around rollers or pulleys to form an upper run and a
lower run, the movable surface being rotated when one of the
rollers or pulleys is rotated, an exercise surface on for walking
or running while exercising, and a weight resistance means for
simulating the dragging or pulling of a load, wherein the endless
movable surface moves in a direction simulating walking or running
backwards.
Inventors: |
Ellis; Joseph K.; (Ocala,
FL) |
Correspondence
Address: |
POWELL GOLDSTEIN LLP
ONE ATLANTIC CENTER
FOURTEENTH FLOOR 1201 WEST PEACHTREE STREET NW
ATLANTA
GA
30309-3488
US
|
Family ID: |
40076750 |
Appl. No.: |
11/385512 |
Filed: |
March 20, 2006 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
11289916 |
Nov 30, 2005 |
|
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|
11385512 |
Mar 20, 2006 |
|
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Current U.S.
Class: |
482/54 |
Current CPC
Class: |
A63B 22/0242 20130101;
A63B 21/0618 20130101; A63B 22/0235 20130101; A63B 23/047 20130101;
A63B 21/154 20130101; A63B 2230/06 20130101; A63B 22/02 20130101;
A63B 22/0285 20130101; A63B 22/0023 20130101; A63B 2022/0278
20130101; A63B 24/00 20130101 |
Class at
Publication: |
482/054 |
International
Class: |
A63B 22/02 20060101
A63B022/02 |
Claims
1. An exercise treadmill of the type having an endless moveable
surface looped around rollers or pulleys to form an upper run and a
lower run, the movable surface being rotated when one of the
rollers or pulleys is rotated, and an exercise surface for walking
or running while exercising, comprising a) a weight resistance
means for simulating the dragging or pulling of a load; b) a pivot
arm operatively connected to the weight resistance means, wherein
pivoting the pivot arm directly actuates the weight resistance
means so as to provide weight resistance for the simulating the
dragging or pulling of a load.
2. The exercise treadmill as claimed in claim 1, wherein the weight
resistance means is variable for providing varying weight
resistance.
3. The exercise treadmill as claimed in claim 2, wherein the weight
resistance means is selected from the group consisting of springs,
pneumatic cylinders, hydraulic cylinders, flexible rods, friction
members, rods, levers, electric motors, electric motors coupled
with brake controllers, and eddy current/electromagnetic.
4. The exercise treadmill as claimed in claim 3, wherein the pivot
arm extends generally upwards from the lower base and is attached
to the lower base at a position in front of the endless movable
surface.
5. The exercise treadmill as claimed in claim 4, wherein the pivot
arm is pivotally attached to the lower base at a position below
where the weight resistance means is operationally attached to the
pivot arm.
6. The exercise treadmill as claimed in claim 4, wherein the pivot
arm is pivotally attached to the lower base at a position
approximately the same as where the weight resistance means is
operationally attached to the pivot arm.
7. The exercise treadmill as claimed in claim 4, wherein the pivot
arm is pivotally attached to the lower base at a position above
where the weight resistance means is operationally attached to the
pivot arm.
8. An exercise treadmill comprising: a) a lower base housing an
endless moveable surface looped around rollers or pulleys to form
an upper run and a lower run, the movable surface being rotated
when one of the rollers or pulleys is rotated, and the upper run
comprising an exercise surface for walking or running while
exercising; b) a weight resistance means for simulating the
dragging or pulling of a load; and c) a pivot arm operatively
connected to the weight resistance means, wherein pivoting the
pivot arm actuates the weight resistance means so as to provide
weight resistance for the simulating the dragging or pulling of a
load, wherein the endless movable surface moves in a direction
simulating walking or running backwards, whereby operation of the
treadmill simulates the dragging or pulling of a load.
9. The exercise treadmill as claimed in claim 8, wherein the weight
resistance means is selected from the group consisting of springs,
pneumatic cylinders, hydraulic cylinders, flexible rods, friction
members, rods, levers, electric motors, electric motors coupled
with brake controllers and eddy current/electromagnetic.
10. The exercise treadmill as claimed in claim 9, wherein the
weight resistance means is variable for providing varying weight
resistance.
11. The exercise treadmill as claimed in claim 8, further
comprising an inclination mechanism to permit inclination of the
exercise surface to simulate an incline or decline.
12. The exercise treadmill as claimed in claim 8, wherein the pivot
arm is pivotable between a first at rest position and a second
fully extended position and can be maintained at any position
between the first at rest position and the second fully extended
position.
13. The exercise treadmill as claimed in claim 8, further
comprising at least one step off platform attached to or a part of
the lower base to provide a surface that can be stepped onto
before, during or after use of the treadmill.
14. The exercise treadmill as claimed in claim 13, wherein the at
least one step off platform is attached to the side of the lower
base.
15. The exercise treadmill as claimed in claim 8, further
comprising a rear safety arm attached to and extending generally
upwards from the lower base at a position in back of the endless
movable surface opposite the endless movable surface from the pivot
arm.
16. The exercise treadmill as claimed in claim 8, wherein the pivot
arm is pivotally attached to the lower base at a position below
where the weight resistance means is operationally attached to the
pivot arm.
17. The exercise treadmill as claimed in claim 8, wherein the pivot
arm is pivotally attached to the lower base at a position
approximately the same as where the weight resistance means is
operationally attached to the pivot arm.
18. The exercise treadmill as claimed in claim 8, wherein the pivot
arm is pivotally attached to the lower base at a position above
where the weight resistance means is operationally attached to the
pivot arm.
19. An exercise treadmill comprising: a) a lower base housing an
endless moveable surface looped around rollers or pulleys to form
an upper run and a lower run, the movable surface being rotated
when one of the rollers or pulleys is rotated, and the upper run
comprising an exercise surface for walking or running while
exercising; b) a weight resistance means for simulating the
dragging or pulling of a load, wherein the weight resistance means
is variable for providing varying weight resistance; and c) a pivot
arm pivotally connected to the lower base and operatively connected
to the weight resistance means, wherein pivoting the pivot arm
actuates the weight resistance means so as to provide weight
resistance for the simulating the dragging or pulling of a load,
wherein the endless movable surface moves in a direction simulating
walking or running backwards, whereby operation of the treadmill
simulates the dragging or pulling of a load.
20. The exercise treadmill as claimed in claim 19, wherein the
pivot arm is pivotally attached to the lower base at a position
below where the weight resistance means is operationally attached
to the pivot arm.
21. The exercise treadmill as claimed in claim 19, wherein the
pivot arm is pivotally attached to the lower base at a position
approximately the same as where the weight resistance means is
operationally attached to the pivot arm.
22. The exercise treadmill as claimed in claim 19 wherein the pivot
arm is pivotally attached to the lower base at a position above
where the weight resistance means is operationally attached to the
pivot arm.
23. The exercise treadmill as claimed in claim 19, further
comprising an inclination mechanism to permit inclination of the
exercise surface to simulate an incline or decline.
24. The exercise treadmill as claimed in claim 19, wherein the
pivot arm is pivotable between a first at rest position and a
second fully extended position and can be maintained at any
position between the first at rest position and the second fully
extended position.
25. An exercise treadmill comprising: a) a lower base housing an
endless moveable surface looped around rollers or pulleys to form
an upper run and a lower run, the movable surface being rotated
when one of the rollers or pulleys is rotated, and the upper run
comprising an exercise surface for walking or running while
exercising; b) a weight resistance means for simulating the
dragging or pulling of a load, wherein the weight resistance means
is variable for providing varying weight resistance; and c) a pivot
arm pivotally connected to the lower base and operatively connected
to the weight resistance means, wherein pivoting the pivot arm
actuates the weight resistance means so as to provide weight
resistance for the simulating the dragging or pulling of a load,
wherein the endless movable surface moves in a first direction
simulating walking or running backwards, whereby operation of the
treadmill simulates the dragging or pulling of a load and the
endless movable surface moves in a second opposite direction for
use of the exercise treadmill in a forward ambulatory mode.
26. The exercise treadmill as claimed in claim 25, wherein the
pivot arm is pivotally attached to the lower base at a position
below where the weight resistance means is operationally attached
to the pivot arm.
27. The exercise treadmill as claimed in claim 25, wherein the
pivot arm is pivotally attached to the lower base at a position
approximately the same as where the weight resistance means is
operationally attached to the pivot arm.
28. The exercise treadmill as claimed in claim 25 wherein the pivot
arm is pivotally attached to the lower base at a position above
where the weight resistance means is operationally attached to the
pivot arm.
29. The exercise treadmill as claimed in claim 25, further
comprising an inclination mechanism to permit inclination of the
exercise surface to simulate an incline or decline.
30. The exercise treadmill as claimed in claim 25, wherein the
pivot arm is pivotable between a first at rest position and a
second fully extended position and can be maintained at any
position between the first at rest position and the second fully
extended position.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This patent application is a continuation-in-part of U.S.
patent application Ser. No. 11/289,916 having a filing date of 30
Nov. 2005 entitled Exercise Treadmill For Pulling And Dragging
Action, which is incorporated herein in its entirety by this
reference.
BACKGROUND OF THE INVENTION
[0002] 1. Technical Field
[0003] This invention relates to the general technical field of
exercise, physical fitness and physical therapy equipment and
machines and to the more specific novel technical field of a
mechanically, electrically and electronically operated reverse
treadmill machine designed to simulate a dragging or pulling motion
when operated by the user.
[0004] 2. Prior Art
[0005] Exercise, physical fitness and physical therapy equipment
and machines are available in various configurations and for
various purposes, and are available for all of the major muscle
groups. The majority of such equipment and machines, especially in
the exercise field, concentrate either on an aerobic or anaerobic
workout or on areas of the body such as the legs, the hips and
lower torso, the chest and upper torso, the back, the shoulders and
the arms.
[0006] Exercise treadmills are well known and are used for various
purposes, including for walking or running aerobic-type exercises,
and diagnostic and therapeutic purposes. For the known and common
purposes, the person on the exercise treadmill normally can perform
an exercise routine at a relatively steady and continuous level of
physical activity or at a variable level of physical exercise
including varying both the speed and incline of the treadmill
during a single session.
[0007] Exercise treadmills typically have an endless running
surface extending between and movable around rollers or pulleys at
each end of the treadmill. The running surface generally is a
relatively thin rubber-like material driven by a motor rotating one
of the rollers or pulleys. The speed of the motor is adjustable by
the user or by a computer program so that the level of exercise can
be adjusted to simulate running or walking.
[0008] The belt typically is supported along its upper length
between the rollers or pulleys by one of several well known designs
in order to support the weight of the user. The most common
approach is a deck or support surface beneath the belt, such as a
plastic or metal panel, to provide the required support. A
low-friction sheet or laminate, such as TEFLON.RTM. brand of
synthetic resinous fluorine-containing polymers, can be provided on
the deck surface (or indeed can be the material of construction of
the deck surface) to reduce the friction between the deck surface
and the belt.
[0009] Many current exercise treadmills, especially the middle to
upper level of exercise treadmills, also have the ability to
provide a variable incline to the treadmill.
[0010] The incline is accomplished in one of two manners--either
the entire apparatus is inclined or just the walking and running
surface is inclined. Further, the inclination can be accomplished
by either manual or power driven inclination systems, and can be
accomplished either at the command of the user or as part of a
computerized exercise regimen programmed into the exercise
treadmill. An inclination takes advantage of the fact that the
exercise effort, or aerobic effect, can be varied with changes in
inclination, requiring more exertion on the part of the user when
the inclination is greater.
[0011] To the best of this inventor's knowledge, known exercise
treadmills are structured to allow the user to walk or run in a
forward direction, with the belt traveling in a direction that
simulates walking or running forward; that is, the belt runs across
the top of the deck in a front to back motion. Additionally, to the
best of this inventor's knowledge, the inclination mechanisms in
known exercise treadmills are structured to allow the user to walk
or run in a level or uphill inclination; that is, the front of the
deck can be level with the back of the deck or can be raised
relative to the back of the deck to simulate an uphill inclination.
Further, to the best of the inventor's knowledge, the hand rails
and hand controls in known exercise treadmills are structured to
complement simulated forward motion.
[0012] However, the inventor is unaware of any specific exercise
treadmill that is structured to allow the user to comfortably
simulate a dragging or pulling motion; that is, a backwards walking
motion either on a level plane or uphill. Additionally, the
inventor is unaware of any specific exercise treadmill that has an
adjustable weight resistance against dragging or pulling so as to
simulate dragging or pulling of a load. A simulated dragging or
pulling motion can be useful for exercising and developing
different groupings of muscles and for providing an aerobic
workout. Thus it can be seen that an exercise treadmill simulating
a dragging or pulling motion would be useful, novel and not
obvious, and a significant improvement over the prior art. It is to
such an exercise treadmill that the current invention is
directed.
BRIEF SUMMARY OF THE INVENTION
[0013] The present invention is a new category of cardiovascular
cross training device that addresses many needs not met with the
current industry offering of treadmills, elliptical devices,
stationary bicycles, and stepping devices. Backward walking is
incorporated into the fitness and physical rehabilitation programs
prescribed by many professional fitness trainers, physical
therapists, sports medicine professionals and strength and
conditioning professionals. Additionally, many athletes use weight
loaded sled dragging (hand held horizontal load) to augment their
lower body strength training as well as their overall aerobic and
anaerobic conditioning programs. The present invention combines
these features.
[0014] The muscle activity of the lower body is much greater in
backward walking versus forward walking and the heart rate is
elevated 30% to 35% higher over the same forward walking speed.
Thus, a person can expend more energy in a shorter period of time
walking backwards. Adding the additional load factor of a hand held
horizontal resistance (dragging motion) and the energy expenditure
and muscle loading to the lower body is increased. This increased
energy output allows an individual to achieve and maintain their
desired heart rate at a traction of the speed of any forward motion
oriented exercise.
[0015] Further, the overall force of impact is reduced at a
backward walk versus forward motion oriented exercises due to the
reduced stride length, foot pattern contact and lower extremity
kinematics pattern. The sheer force to the knees is reduced because
the sheer force is reversed while walking backwards. Moreover, the
range of motion of the knee joint is reduced to incorporating a
nearly isometric pattern following contact compared to a more
stressful eccentric loading. This can be very beneficial to the
exercisers with knee joint injuries or those who experience knee
pain during forward motion oriented exercises. Most knee joint
injuries can even continue to heal during a backward walking
training program. Hip joint stress is reduced during backward
walking because the overall range of motion of the hip joint is
reduced by incorporating greater hip flexation but much less hip
extension.
[0016] During backward walking the hamstring muscles are stretched
prior to activation and foot plant due to hip flexation. Given the
prestretch, the load is not introduced until the weight bearing
phase of the movement where the hamstring muscle is much more
capable of accepting the load factors. Subsequently, it is more
beneficial and less injury prone to add additional hand held
horizontal resistance (dragging motion) to the ham string muscle in
a backward walking motion. Therefore, during a backward dragging
motion the user can achieve greater blood flow to and activation of
the hamstring muscles at a slower walking speed than walking
without the added load factor of the dragging motion.
[0017] The present invention is an exercise treadmill for
simulating the dragging or pulling of an object on a level surface,
up an incline or down a decline. The treadmill has a lower base
housing the internal mechanical components, a pivot arm on which a
hand controller is mounted, and a weight resistance means located
within the lower base. In one embodiment, the weight resistance
means can be operatively connected to the pivot arm via a cable. In
another embodiment, the weight resistance means can be operatively
connected to the pivot arm by lever, rods, or the like. In yet
another embodiment, the weight resistance means can be operatively
directly connected to the pivot arm. In still another embodiment,
the weight resistance means can be directly attached to the pivot
arm or to the connection between the pivot arm and the lower base.
In another embodiment, the weight resistance means can be in
operative communication with the pivot arm, yet not directly
attached to or structurally connected to the pivot arm.
[0018] In operation, when a user steps onto the treadmill and grips
the hand controller and starts belt moving, the user begins to walk
or run in a simulated backwards direction relative to the hand
controller, causing the user to pull on the hand controller.
Alternatively, the treadmill may be set up to begin to move
automatically at a speed and at an inclination according to a value
entered from the hand controller. This pulling transfers to the
pivot arm, as the hand controller is attached to the pivot arm,
thus acting on the weight resistance means. As disclosed above, the
action of the pivot arm on the weight resistance means can be by
many means, such as cables, wires, rods, levers, or the like,
directly or indirectly, and structurally attached or in cooperative
communication.
[0019] The degree of weight resistance of the weight resistance
means can be controlled by the user to simulate dragging or pulling
a weight such that the exercise regimen is similar to walking or
running backwards while dragging or pulling an object of a weight
comparable to the setting of the weight resistance means. The
higher the setting of the weight resistance means, the heavier the
simulated object being pulled. In preferred embodiments, the weight
resistance means can be an adjustable spring or hydraulic or
pneumatic cylinder, a spring with a known spring constant or a
hydraulic or pneumatic cylinder with a known resistance, a flexible
rod with a known elastic modulus, or a frictional coupling with
known coefficients of friction. Additional weight resistance means
include direct current motors, direct current motors coupled with
brake controllers, alternating current motors coupled with brake
controllers, eddy current/electromagnetic resistance, and torsion
springs directly connected to the pivot arm attachment site.
[0020] The invention also can be a combination of a conventional
treadmill and the reverse dragging motion treadmill. To accomplish
this, the hand controller and pivot arm can be set in a locked
position for conventional treadmill operation and set in an
unlocked position for reverse dragging operation. Further, the
lower base housing the treadmill belt motor and the weight
resistance means can be a relatively larger structure sitting under
and supporting the invention or a relatively smaller structure from
which the treadmill belt and platform extend. In the first
instance, the elevation motor or means for raising and lowering the
treadmill belt platform for incline and decline operation can be
located within the lower base housing. In the second instance, the
elevation motor or means can be located in a separate relatively
smaller structure attached to the end of the treadmill platform
opposite the end of the treadmill platform attached to the lower
base housing.
[0021] Generally speaking, the internal mechanical components of
the treadmill are similar to (or can be similar to or the same as)
the internal mechanical components of known treadmills. The
treadmill comprises an endless belt looped about rollers or pulleys
so as to provide a platform on which the user can stand, walk
and/or run. A deck below a portion of the belt supports the belt
and the user. A belt motor cooperates with the belt and/or the
rollers or pulleys to move the belt, thus creating a moving
platform on which the user can walk or run for the exercise
regimen. An incline motor cooperates with the platform, the deck,
the rollers or pulleys or rear legs to incline the belt to simulate
a hill.
[0022] These objects, and other objects, features and advantages of
the present invention will become more apparent to those of
ordinary skill in the art when the following detailed description
of the preferred embodiments is read in conjunction with the
appended figures.
BRIEF DESCRIPTION OF THE DRAWINGS
[0023] FIG. 1 is a perspective view of the invention.
[0024] FIG. 2 is a side view of the in invention operating in a
flat position.
[0025] FIG. 3 is a side view of the invention operating in an
inclined position.
[0026] FIG. 4 is a side sectional view of the invention showing the
internal mechanical components.
[0027] FIG. 4A is a side schematic of a tension spring-based weight
resistance means suitable for the invention.
[0028] FIG. 4B is a side schematic of a compression spring-based
weight resistance means suitable for the invention.
[0029] FIG. 4C is a side schematic of a first hydraulic or
pneumatic cylinder-based weight resistance means suitable for the
present invention.
[0030] FIG. 4D is a side schematic of a second hydraulic or
pneumatic cylinder-based weight resistance means suitable for the
present invention.
[0031] FIG. 4E is a top schematic of a flexible rod-based weight
resistance means suitable for the present invention.
[0032] FIG. 4F is a top schematic of a frictional coupling-based
weight resistance means suitable for the present invention.
[0033] FIG. 5 is a top view of the base of the invention.
[0034] FIG. 6 is a top view of a representative hand control for
the invention.
[0035] FIG. 7 is a side view of the representative hand control for
the invention shown in FIG. 6.
[0036] FIG. 8 is a side view of the invention with an optional rear
safety arm.
[0037] FIG. 9 is a side view of the invention with an optional rear
step-off platform.
[0038] FIG. 10 is a side sectional view of the invention with an
optional rear step-off platform showing an alternate configuration
of the internal mechanical components.
[0039] FIG. 11A is a side sectional view of the invention showing
an alternate embodiment of a pivoting piston driven push drive
weight resistance means in the resting position.
[0040] FIG. 11B is a side sectional view of the invention showing
an alternate embodiment of a pivoting piston driven push drive
weight resistance means in the operating position.
[0041] FIG. 12A is a side sectional view of the invention showing
an alternate embodiment of a rigid cam shaped push drive weight
resistance means in the resting position.
[0042] FIG. 12B is a side sectional view of the invention showing
an alternate embodiment of a rigid cam shaped push drive weight
resistance means in the operating position.
[0043] FIG. 12C is a schematic view of the rigid cam shaped push
drive weight resistance means shown in FIGS. 12A and 12B.
[0044] FIG. 13A is a side sectional view of the invention showing
an alternate embodiment of a direct axle drive resistance weight
resistance means in the resting position.
[0045] FIG. 13B is a side sectional view of the invention showing
an alternate embodiment of a direct axle drive resistance weight
resistance means in the operating position.
[0046] FIG. 13C is a schematic view of the direct axle drive
resistance weight resistance means shown in FIGS. 13A and 13B.
[0047] FIG. 14A is a side sectional view of the invention showing
an alternate embodiment of a direct axle mounted spring resistance
weight resistance means in the resting position.
[0048] FIG. 14B is a side sectional view of the invention showing
an alternate embodiment of a direct axle mounted spring resistance
weight resistance means in the operating position.
[0049] FIG. 14C is a schematic view of the direct axle mounted
spring resistance weight resistance means shown in FIGS. 14A and
14B.
[0050] FIG. 15 is a side sectional view of the invention showing an
alternate embodiment of a direct drive tensile weight resistance
means in combination with an alternately mounted pivot arm.
[0051] FIG. 16A is a side sectional view of an embodiment of the
invention shown in the drag operating position with a level
platform.
[0052] FIG. 16B is a side sectional view of an embodiment of the
invention shown in the drag operating position with an inclined
platform.
[0053] FIG. 16C is a side sectional view of an embodiment of the
invention shown in the drag operating position with a declined
platform.
[0054] FIG. 17A is a side sectional view of an embodiment of the
invention shown in the forward ambulatory position with a level
platform.
[0055] FIG. 17B is a side sectional view of an embodiment of the
invention shown in the forward ambulatory position with an inclined
platform.
[0056] FIG. 17C is a side sectional view of an embodiment of the
invention shown in the forward ambulatory position with a declined
platform.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0057] Referring now to the appended figures, the invention will be
described in connection with representative preferred embodiments.
FIG. 1 is a perspective view of the invention illustrating the
relationship between the various major components of the device.
FIG. 2 is a side view of the invention showing a user operating the
invention in a flat or level dragging or pulling simulation. FIG. 3
is a side view of the invention showing a user operating the
invention in an inclined dragging or pulling simulation. FIG. 4 is
a side sectional view of the invention showing a schematic of the
internal mechanical components of the invention.
[0058] FIGS. 4A through 4F show several illustrative weight
resistance means suitable for use with the invention. FIG. 4A is a
side schematic of a spring-based weight resistance means suitable
for the invention, such as a spring with a known spring constant in
tension. FIG. 4B is a side schematic of a compression spring-based
weight resistance means suitable for the invention, such as a
spring with a known spring constant in compression. FIG. 4C is a
side schematic of a first hydraulic cylinder-based weight
resistance means suitable for the present invention, such as a
hydraulic cylinder with known or adjustable resistance, in which
the resistance is created by pulling the piston rod out of the
hydraulic cylinder. FIG. 4D is a side schematic of a second
hydraulic cylinder-based weight resistance means suitable for the
present invention, such as a hydraulic cylinder with known or
adjustable resistance, in which the resistance is created by
pushing the piston rod into the hydraulic cylinder. FIG. 4E is a
top schematic of a flexible rod-based weight resistance means
suitable for the present invention, such as a rod with a known
elastic modulus. FIG. 4F is a top schematic of a frictional
coupling-based weight resistance means suitable for the present
invention, such as a combination of elements having known
coefficients of friction.
[0059] FIG. 5 is a top view of the base of the invention
illustrating the relative positioning of various components of the
invention. FIG. 6 is a top view of a representative hand control
for the invention showing various features that can be included on
the hand control. FIG. 7 is a side view of the representative hand
control for the invention shown in FIG. 6. FIG. 8 is a side view of
the invention with an optional rear safety arm to help prevent the
user from inadvertently stepping off the rear of the invention.
FIG. 9 is a side view of the invention with an optional rear
step-off platform on which the user can step if exiting the
invention from the rear. FIG. 10 is a side sectional view of the
invention with an optional rear step-off platform showing an
alternate configuration of the internal mechanical components
illustrating the relationship between the various major components
of the device.
[0060] FIGS. 11 through 15 show several additional illustrative
weight resistance means suitable for use with the invention. FIGS.
11A and 11B are side sectional views of the invention showing a
pivoting piston driven push drive weight resistance means in the
resting and operating positions respectively. FIGS. 12A and 12B are
side sectional views of the invention showing a rigid cam shaped
push drive weight resistance means in the resting and operating
positions respectively, with FIG. 12C showing a schematic view of
the rigid cam shaped push drive weight resistance means. FIGS. 13A
and 13B are side sectional views of the invention showing a direct
axle drive resistance weight resistance means in the resting and
operating positions respectively, with FIG. 13C showing a schematic
view of the direct axle drive resistance weight resistance means.
FIGS. 14A and 14B are side sectional views of the invention showing
a direct axle mounted spring resistance weight resistance means in
the resting and operating positions respectively, with FIG. 14C
showing a schematic view of the direct axle mounted spring
resistance weight resistance means. FIG. 15 is a side sectional
view of the invention showing an alternate embodiment of a direct
drive tensile weight resistance means in combination with an
alternately mounted pivot arm.
[0061] FIGS. 16 and 17 show alternative embodiments of a
combination treadmill and reverse dragging treadmill and having a
more compact lower housing body. FIGS. 16A through 16C are side
sectional views of an embodiment of the invention shown in the drag
operating position with a level platform, an inclined platform, and
a declined platform, respectively. FIGS. 17A through 17C are side
sectional views of an embodiment of the invention shown in the
forward ambulatory position with a level platform, an inclined
platform, and a declined platform, respectively.
[0062] FIG. 1 is a perspective view of one embodiment of the
invention illustrating the relationship between the various major
components of the device. Treadmill 10 has a lower base 12 housing
the internal mechanical components of treadmill 10.
[0063] Projecting upwardly from base 12 is pivot arm 14 on which
hand controller 16 is mounted. Pivot arm 14 can comprise one, two,
or more pivot arm sections. As illustrated in FIG. 1, pivot arm 14
comprises two pivot arm sections, upper pivot arm 14A and lower
pivot arm 14B, such that pivot arm 14 is self-aligning for users U
of different heights and body builds. Additionally, the use of a
two-part pivot arm 14, or a multi-part pivot arm 14, provides for a
more biometrically acceptable pulling motion and to position pivot
arm 14 as far away from user U (shown in FIGS. 2, 3, 8 and 9) as
possible to avoid incidental and unwanted contact with pivot arm
14. Further, the use of a two-part pivot arm 14, or a multi-part
pivot arm 14, can be more comfortable to user U. First mounting
means 28 pivotally attaches upper pivot arm 14A to lower pivot arm
14B.
[0064] Hand controller 16 is mounted on the end of upper pivot arm
14A distal from lower pivot arm 14B, which also is proximal to user
U when user U is in the correct position for operating the
treadmill 10. Second mounting means 30 attaches hand controller 16
to upper pivot arm 14A and can be a static or motionless
connection, with hand controller 16 rigidly connected to upper
pivot arm 14A, or a dynamic or moving connection, with hand
controller 16 movably connected to upper pivot arm 14A, such as in
a two-dimensional pivoting or three-dimensional joystick
configuration. The combination of pivot arm 14 and hand controller
16 provides user U with a means of support either during the entire
exercise period or for an initial period until user U has
assimilated himself or herself to the speed of the treadmill. The
combination of first mounting means 28 and second mounting means 30
allows desired motion of pivot arm 14 and hand controller 16
relative to user U.
[0065] Alternatively, there can be two pivot arms 14, one for each
hand of user U. If two pivot arms 14 are used, the controls on hand
controller 16 can be on one or the other of pivot arms 14, or split
between the two pivot arms 14. Further, the use of two independent
pivot arms 14 can simulate the arm-swinging motion that normally
occurs during walking or running, which may be advantageous to user
U, or can be lined together.
[0066] Hand controller 16 can include electronic controls and
information displays that typically are provided on exercise
treadmills for purposes such as adjusting the speed and incline of
treadmill 10, the time user U has been operating treadmill 10
and/or the time left in a set exercise regimen, user's U heart
rate, the simulated load being dragged or pulled, on and off
buttons, and an emergency off button, and other functions, as will
be discussed later in connection with FIGS. 6 and 7. Various step
off platforms, such as side step offs 22, front step offs 24 and
rear step-offs 26, can be included in various configurations both
to allow user U easy access to the treadmill 10 and to provide
safety platforms for user U to step off treadmill 10 onto a
non-moving platform, as will be discussed later in connection with
FIG. 5. Attached to lower pivot arm 14B and extending between lower
pivot arm 14B and a weight resistance means 46 shown in more detail
in FIG. 4 is weight resistance cable 18.
[0067] In normal operation, user U will step onto belt 20 and grasp
hand controller 16, positioning himself or herself generally
centrally on belt 20 so as to face the hand controller 16. As belt
20 begins to move, as will be discussed later, user U will start a
rearward walking or running motion towards the rear of treadmill
10, with belt 20 moving accordingly, such that user U will remain
generally in the same position centrally on belt 20 as treadmill 10
is operating. Alternatively, treadmill 10 may be set up to begin to
move automatically at a speed according to a value entered from
hand controller 16. The pace of the walking or running motion may
be increased or decreased depending upon the speed of belt 20. The
speed of belt 20 can be controlled by the adjustment of the
controls on hand controller 16, along with the adjustment of the
inclination of treadmill 10 and other functions and features, as
will be discussed later in connection with FIGS. 6 and 7. Belt 20
also can comprise two belts, one for each foot, as an
alternative.
[0068] FIG. 2 is a side view of the invention showing user U
operating the treadmill 10 in a flat or level dragging or pulling
simulation. In this position, user U is simulating a level surface
dragging or pulling motion and is walking or running backwards and
pulling on hand controller 16, and thus pulling against weight
resistance means 46.
[0069] FIG. 3 is a side view of the invention showing user U
operating the treadmill 10 in an inclined dragging or pulling
simulation. In this position, user U is simulating an inclined
uphill dragging or pulling motion and is walking or running
backwards and uphill and pulling on hand controller 16, thus
simultaneously pulling against weight resistance means 46 and
moving uphill. As will be discussed later in connection with FIG.
4, hand controller 16 and pivot arm 14 via first mounting means 28
and second mounting means 30 allow the appropriate motion of pivot
arm 14 hand controller 16 relative to user U for self-alignment and
for proper and comfortable operation of treadmill 10.
[0070] The use of one or more pivot points such as first mounting
means 28 and second mounting means 30 allows the various sections
of pivot arm 14 to pivot relative to each other and to user U,
resulting in a self-aligning feature. Further, as pivot arm 14 is
pivotally attached to base 12, there is another degree of movement
for event greater alignment of pivot arm 14 relative to user U. For
example, as user U grasps hand controller 18, user U can move hand
controller 18 upwards and downwards, and towards or away from user
U, so as to place hand controller 18 in a position most comfortable
to user U. Further, as the pivot points are freely pivotable, hand
controller 18 in effect self-aligns to an appropriate position
relative to user U simply upon being grasped by user U. The
addition of additional pivot points, such as by making pivot arm 14
multi-sectional, can enhance this self-aligning feature.
[0071] As can be seen in FIG. 3, base 12 can comprise a separate
support platform 32 and belt platform 34. In such a configuration,
the main support for treadmill 10 along with belt motor 40 (shown
in FIG. 4), incline motor 42 (shown in FIG. 4) and weight
resistance means 46 (shown in FIG. 4) preferably are located in
support platform 32, whereas belt 20 and belt movement means
(disclosed in connection with and shown in FIG. 4) preferably are
located in belt platform 34. Alternatively, each of the above
disclosed elements can be located as desired in either support
platform 32 or belt platform 34 by the engineer of ordinary skill
in the art. In such a configuration, the inclination of belt 20 is
accomplished by incline motor 42 raising belt platform 34 relative
to support platform 32, in a manner well known in the art.
[0072] Alternatively, base 12 can comprise a single platform. In
such a configuration, all of the above disclosed elements, namely
the main support for treadmill 10, belt motor 40 (shown in FIG. 4),
incline motor 42 (shown in FIG. 4) and weight resistance means 46
(shown in FIG. 4), are located in base 12. In such a configuration,
the inclination of belt 20 is accomplished by incline motor 42
raising the rear end of base 12 relative to the front end of base
12, in a manner well known in the art.
[0073] FIG. 4 is a side sectional view of the invention showing a
schematic of the internal mechanical components of the treadmill
10. Generally speaking, because the internal mechanic components of
the treadmill 10 are similar to (or can be similar to or the same
as) the internal mechanical components of known treadmills, the
internal mechanical components will be discussed in general terms.
Treadmill 10 comprises an endless belt 20 looped about rollers or
pulleys 36. Rollers or pulleys 36 are rotatably secured within base
12 such that belt 20 can continuously travel about rollers or
pulleys 36. Located between rollers or pulleys 36 and within the
endless loop of belt 20 is deck 38 for supporting the top run 20A
of belt 20.
[0074] Specifically, as when user U steps on belt 20, belt 20 is
pressed against deck 38 to support user U. Belt motor 40 cooperates
with belt 20 and/or rollers or pulleys 36 to move belt 20. Incline
motor 42 cooperates with belt platform 34, deck 38, rollers or
pulleys 36 or rear legs 44 to incline belt 20. Weight resistance
means 46 cooperates with pivot arm 14 via cable 18. Cable 18 can be
of any structure, such as a rope, a chain, a belt; monofilaments,
braided wires, and other suitable equivalents, that allow a
transfer of force between pivot arm 14 and weight resistance means
46, and is not limited to a standard cable.
[0075] A representative drive assembly for belt 20 is schematically
illustrated in FIG. 4. Front roller or pulley 36A is rotatably
mounted within base 12, such as on axle 48.
[0076] Rear roller or pulley 36B is rotatably mounted within base
12, such as on axle 50. Axles 48, 50 typically are secured to a
frame portion of base. Front roller or pulley 36A and rear roller
or pulley 36B are positioned substantially parallel to each other.
Belt 20 is looped around rollers or pulleys 36 so as to allow belt
20 to move continuously about rollers or pulleys 36, thus forming
upper run 20A and lower run 20B. User U steps on belt 20 during
normal operation of treadmill 10, causing belt 20 to bend under the
weight of user U. Belt 20 is supported for a portion of its length,
and for a substantial portion of upper run 20A, between rollers or
pulleys 36 by deck 38. To reduce friction between the underside of
upper run 20A and the top surface of deck 38, a low friction
material can be applied to the top surface of deck 38 or the
underside of belt 20, or both. Alternatively, deck 38 can be
constructed of a low friction material. Deck 38 preferably is
rigidly secured within base 12 or belt platform 34. This
configuration is known in the treadmill art.
[0077] In the illustrative example shown in FIG. 4, rear roller or
pulley 36B is rotated by belt motor 40, such as by fan belt 54 or
by a direct drive (not shown), during normal operation of treadmill
10. Belt motor 40 is mounted within base 12. Rear roller or pulley
36A is rotated by belt motor 40. As discussed in more detail later,
the speed at which rear roller or pulley 36A is rotated can be
controlled by a microprocessor (not shown) through belt motor 40.
The speed is adjustable from controls on hand controller 16. With
this arrangement, it is therefore possible to vary the speed of
belt 20 during the exercise regimen. This configuration is known in
the treadmill art.
[0078] In the illustrative example shown in FIG. 4, an inclination
mechanism is provided to permit inclination of deck 38.
Specifically, FIG. 4 illustrates three different and separate
inclination mechanisms. Preferably, only one inclination mechanism
is used, but three are shown as alternatives to each other. If
desired, two or more inclination mechanisms can be used in the same
machine, with each being used independently from or in conjunction
with each other. The three different lift mechanisms are a leg
lift, comprising incline motor 42 and rear legs 44, and two
different belt platform 34 lifts, comprising lift motor 42 and a
means for lifting belt platform 34. Each of these three lift
mechanisms are known in the treadmill art. In the leg lift, incline
motor 42 is connected to rear legs 44. Actuation of incline motor
42 causes the lifting of the entire base 12 relative to rear legs
44. This causes treadmill 10 to pivot upwards about front legs 52,
thus raising the rear of treadmill 10 relative to front legs 52,
causing an incline in the entire base 12. In the first belt
platform 34 lift, belt motor 40 is supported within belt platform
34. Incline motor 42 is connected to belt platform 34, such as by
supports 56. Actuation of incline motor 42 causes the lifting of
belt platform 34, including belt motor 40 and the accompanying
drive mechanics. In the second belt platform 34 lift, belt motor 40
is not supported within belt platform 34, but is supported within
support platform 32. Incline motor 42 is connected to belt platform
34 or axle 48, such as by supports 58. Actuation of incline motor
42 causes the lifting of belt platform 34, with belt motor 40 and
the accompanying drive mechanics remaining below in support
platform 32. The degree of inclination chosen by user U is
adjustable from controls on hand controller 16. With this
arrangement, it is therefore possible to vary the inclination of
belt 20 during the exercise regimen. This configuration is known in
the treadmill art.
[0079] FIG. 4 also schematically illustrates an example weight
resistance means 46 for the treadmill 10. Weight resistance means
46 is operatively connected to pivot arm 14 via cable 18. Cable 18
can be directed around one or more pulleys 60 to prevent cable 18
from becoming entangled in the internal mechanical components of
treadmill 10. Specifically, cable 18 is attached to lower pivot arm
14B, travels around pulley or pulleys 60 if necessary, and attaches
to weight resistance means 46. In operation, when user U grips hand
controller 16 and starts belt 20 moving, user U begins to walk or
run in a simulated backwards direction relative to hand controller
16, causing user U to pull on hand controller 16. This pulling
transfers to pivot arm 14, as hand controller 16 is attached to
pivot arm 14, thus pulling on cable 18, which in turn pulls on
weight resistance means 46.
[0080] The degree of weight resistance can be controlled by user U.
In the lowest setting, it can be possible for user U to pull pivot
arm 14 all the way to a stop (not shown) preventing pivot arm from
moving any farther. At such a setting, user U would be simulating
dragging or pulling little or no weight and the exercise regimen
would be similar to walking or running backwards, and pivot arm 14
would provide user U with stability. In other settings, weight
resistance means 46 can be set high enough to prevent user U from
pulling pivot arm 14 all the way to the stop (not shown). At such
settings, user U would be simulating dragging or pulling a weight
and the exercise regimen would be similar to walking or running
backwards while dragging or pulling an object of a weight
comparable to the setting of the weight resistance means 46. The
higher the setting of the weight resistance means 46, the heavier
the simulated object being pulled. The degree of weight resistance
chosen by user U is adjustable from controls on hand controller 16.
With this arrangement, it is therefore possible to vary the weight
resistance being dragged or pulled during the exercise regimen.
[0081] In preferred embodiments, weight resistance means 46 can be
an adjustable spring or hydraulic cylinder, a spring with a known
spring constant or a hydraulic or pneumatic cylinder with a known
resistance, a flexible rod with a known elastic modulus, or a
frictional coupling with known coefficients of friction. Each of
these elements is known in the art. As discussed later, the weight
resistance means 46 can be of many different forms, known or future
developed, preferably so long as weight resistance simulating
dragging or pulling is provided.
[0082] FIGS. 4A and 4B illustrate adjustable springs or springs
with known spring constants. FIG. 4A illustrates the use of spring
70 in tension. Although adjustment mechanism 72 is shown, a spring
of known spring constant can be used without adjustment mechanism
72. First end 70A of spring 70 is attached to base 12 and second
end 70B of spring 70 is attached to cable 18. In tension, pulling
on cable 18 in the direction of arrow P would stretch spring 70,
placing it in tension. A spring of known spring constant can be
used to provide a basis for determining the simulated resistance
weight being dragged or pulled by user U. The use of adjustment
mechanism 72 inserted at strategic positions between coils of
spring 70 also can be used to adjust the simulated resistance
weight.
[0083] FIG. 4B illustrates the use of spring 70 in compression.
Although adjustment mechanism 72 (not shown in FIG. 4B) can be
used, a spring of known or unknown spring constant can be used with
adjustment mechanism 72. First end 70A of spring 70 is attached to
base 12 via attachment arms 74 and second end 70B of spring 70 is
attached to cable 18. In compression, pulling on cable 18 in the
direction of arrow P would compress spring 70, placing it in
compression. A spring of known spring constant can be used to
provide a basis for determining the simulated resistance weight
being dragged or pulled by user U. The use of adjustment mechanism
72 inserted at strategic positions between coils of spring 70 also
can be used to adjust the simulated resistance weight.
[0084] FIGS. 4C and 4D illustrate hydraulic or pneumatic cylinders
with known resistance. As hydraulic and pneumatic cylinders operate
on the same general principle, FIGS. 4C and 4D will be discussed in
connection with hydraulic cylinders;
[0085] however, the same discussion applies to pneumatic cylinders.
FIG. 4C illustrates the use of hydraulic cylinder 76 in pulling
configuration. Hydraulic cylinder 76 is attached to base 12 and
piston rod 78 is attached to cable 18. Pulling on cable 18 in the
direction of arrow P pulls piston rod 78 out of hydraulic cylinder
76, with the fluid within hydraulic cylinder 76 providing
resistance. The use of a hydraulic cylinder with known or
adjustable resistance, in which the resistance is created by
pulling piston rod 78 out of hydraulic cylinder 76, can be used to
provide a basis for determining the simulated resistance weight
being dragged or pulled by user U.
[0086] FIG. 4D illustrates the use of hydraulic cylinder 76 in
pushing configuration. Hydraulic cylinder 76 is attached to base 12
via attachment arms 74 and piston rod 78 is attached to cable 18
via attachment arms 74. Pulling on cable 18 in the direction of
arrow P pushes piston rod 78 into hydraulic cylinder 76, with the
fluid within hydraulic cylinder 76 providing resistance. The use of
a hydraulic cylinder with known or adjustable resistance, in which
the resistance is created by pushing piston rod 78 into hydraulic
cylinder 76, can be used to provide a basis for determining the
simulated resistance weight being dragged or pulled by user U.
[0087] FIG. 4E illustrates the use of flexible rod 80. At least one
end of rod 80 is attached to base 12 and a middle section or
another end of rod 80 is attached to cable 18. Pulling on cable 18
in the direction of arrow P would flex rod 80, producing a
combination of compression forces and tension forces in rod 80. A
flexible rod or rods of known elastic modulus can be used to
provide a basis for determining the simulated resistance weight
being dragged or pulled by user U.
[0088] FIG. 4F illustrates the use of friction members 82, 84 in
pulling configuration. First friction member 82 is attached to base
12 and second friction member 84 is attached to cable 18. Pulling
on cable 18 in the direction of arrow P pulls second friction
member 84 against first friction member 82, providing frictional
resistance. The use of friction members with known or adjustable
coefficients of friction, in which the frictional resistance is
created by pulling second friction member 84 against first friction
member 82, can be used to provide a basis for determining the
simulated resistance weight being dragged or pulled by user U.
[0089] Other weight resistance means 46 include electromagnetic
braking, eddy current mechanisms, direct and alternating current
motors including coupled with brake controllers, weight stacks,
resistance bands, spring-powered reels, pneumatic, air resistance,
and water paddles. Each of these other weight resistance means 46
are known and can be adapted for this invention without undue
experimentation. Further, other weight resistance means are
suitable for use in this invention, including known and future
developed weight resistance means.
[0090] A comparison of the position of pivot arm 14 in FIG. 2
versus FIG. 4 shows how pivot arm 14 can move. Pivot arm 14 is
shown in the at rest position in FIG. 4, and in the operational
position in FIG. 2 and in the ghost lines in FIG. 4. Pivot arm 14
can pivot between the at rest position and a fully extended
position, and the position of pivot arm 14 during operation is
dependent on user U. Stops (not shown) prevent pivot arm 14 from
moving past the at rest position in one direction of motion and the
fully extended position in the opposite direction of motion.
Further, a comparison of the position of belt 20 in FIGS. 1, 2 and
4 versus FIG. 3 shows how belt 20 can incline. Belt 20 is shown in
the level position in FIGS. 1, 2 and 4 and in the inclined position
in FIG. 3 and the ghost lines of FIG. 4. Belt 20 (specifically belt
platform 34 or base 12) can incline between the level position and
the fully inclined position, and the inclination of belt 20 is
dependent on user U.
[0091] FIG. 5 is a top view of the base of the invention
illustrating the relative positioning of various components of
treadmill 10. Front step offs 24 run across at least a portion of
the front of base 12 on either side of pivot arm 14. Side step offs
22 run at least a portion of the length of base 12 from front to
rear of treadmill 10. Rear step offs 26 are not shown in this
embodiment. Step off surfaces 22, 24, 26 provide a surface upon
which user U can step onto before, during or after belt 20 begins
to move. Slot 86 is where cable 18 enters base 12. Hole 88 is where
pivot arm 14 enters base 12. Pivot arm 14 is pivotally attached
within base 12 via a known type of connection (not shown).
[0092] FIG. 6 is a top view of a representative hand controller 16
for the invention showing various features that can be included on
the hand controller 16. FIG. 7 is a side view of the representative
hand controller 16 for the invention shown in FIG. 6. A number of
visual displays can be included on hand controller 16 including
time display 90 that displays the elapsed time of an exercise
regimen or the time remaining in a count down for an exercise
regimen, heart rate display 92 that shows the heart rate of user U
assuming a heart rate monitor is being used and treadmill 10
include the features of heart rate monitoring, incline display 94
representing the incline of belt 20 in degrees or other units, load
display 96 representing the load or weight being dragged or pulled,
and speed display 98 representing how fast user is moving. Such
displays are known in the treadmill art.
[0093] Additional displays can include a mile display to display
the simulated distance raveled by user U during the exercise
regimen, a calorie display to display the current rate of user U
calorie expenditure or the total calories expended by user U during
the exercise regimen. Further, hand controller 16 can include an
input key pad with which user U can communicate with a
microprocessor that operates treadmill 10 so as to operate
treadmill 10 as well as set the parameters for exercise regimens.
Also included on hand controller is or can be on-off buttons,
emergency stop button 100, increase buttons 102 to increase a
parameter, decrease buttons 104 to decrease parameters, and other
functional input devices. All of these are known in the treadmill
art. Further, hand grips 106 also can comprise input means (not
shown) for reading user's U heart rate, as is known in the art.
[0094] Treadmill 10 utilizes a known microprocessor (not shown) or
other suitable electronic controller to control and operate the
various features of the invention. For example, the speed of belt
motor 40, and hence the speed of belt 20, is controlled by the
microprocessor or other suitable electronic controller. Further,
the inclination of belt 20 also is controlled by the microprocessor
or other suitable electronic controller. Additionally connected to
the microprocessor or other suitable electronic controller are the
various display and other elements 90, 92, 94, 96, 98,100,102,104
(and others, if present) of the hand controller 16. For the sake of
simplicity, the signals are transmitted to and from the
microprocessor or other suitable electronic controller to the hand
controller 16 displays 90, 92, 94, 96,98 (and others, if present),
and are operatively connected to the switches 100,102,104 (and
others, if present) and the specific elements, such as belt motor
40, incline motor 42, and weight resistance means 46. Again, the
use of this type of microprocessor or other suitable electronic
controller is well known in the treadmill art.
[0095] FIG. 8 is a side view of the invention with an optional rear
safety arm 108 to help prevent user U from inadvertently stepping
off the rear of treadmill 10. Rear safety arm 108 can comprise pad
110 attached to upright 112, upright 112 being attached to base 12.
Optionally, a second controller (not shown) can be located on rear
safety arm 108 or pad 110. Such a second controller could be used
to operate treadmill 10 in a more conventional manner as a forward
walking treadmill. With such a configuration, user U would in
effect be standing on belt 20 facing rearward towards rear safety
arm 108 with the motion of belt 20 allowing forward walking and
control of treadmill 10 would be accomplished via second
controller.
[0096] FIG. 9 is a side view of the invention with an optional rear
step-off 26 platform on which user U can step if exiting treadmill
10 from the rear. Optional side step offs 22 are the most
preferable step off features, with optional front step offs 24 also
being preferable due to pivot arm 14 pivoting forward in the at
rest position. Rear step offs 26 are optional and provide an
additional measure of safety. FIG. 9 also shows treadmill 10 in an
inclined operational position using belt platform 34 and support
base 32.
[0097] FIG. 10 is a side sectional view of the invention with an
optional rear step-off 26 platform showing an alternate
configuration of the internal mechanical components illustrating
the relationship between the various major components of the
device. FIG. 10 is similar to FIG. 4 in this regard, but with the
shape of the rear of base 12 altered to accommodate rear step off
26.
[0098] Now that the cable embodiment of the invention has been
disclosed, various other embodiments of the invention will be
disclosed in connection with FIGS. 11-17. As can be seen, other
embodiments of the invention are contemplated having various types
of weight resistance means 46 and various types of connections
between pivot arm 14 and weight resistance means 46. Following are
only several illustrative examples. As the general aspects of
treadmill 10 have been disclosed above, the following disclosure
will be limited to disclosures of the alternate structures and
operational connections between pivot arm 14 and weight resistance
means 46 to avoid being overly repetitive.
[0099] FIGS. 11-14 show side sectional views of the invention
showing a schematic of the internal mechanical components of the
treadmill 10. As above, treadmill 10 comprises an endless belt 20
looped about rollers or pulleys 36. Rollers or pulleys 36 are
rotatably secured within base 12 such that belt 20 can continuously
travel about rollers or pulleys 36. Located between rollers or
pulleys 36 and within the endless loop of belt 20 is deck 38 for
supporting the top run 20A of belt 20 such that when user U steps
on belt 20, belt 20 is pressed against deck 38 to support user U. A
belt motor (40, but not shown in FIGS. 11-14) 40 cooperates with
belt 20 and/or rollers or pulleys 36 to move belt 20. An incline
motor (42, but not shown in FIGS. 11-14) cooperates with belt
platform 34, deck 38, rollers or pulleys 36 or rear legs 44 to
incline belt 20.
[0100] In the illustrative example shown in FIGS. 11-14, rear
roller or pulley 36B is rotated by belt motor (40, but not shown in
FIGS. 11-14) such as by fan belt 54 or by a direct drive (not
shown), during normal operation of treadmill 10. Belt motor (40,
but not shown in FIGS. 11-14) is mounted within base 12. Rear
roller or pulley 36A is rotated by belt motor (40, but not shown in
FIGS. 11-14). The speed at which rear roller or pulley 36A is
rotated can be controlled by a microprocessor (not shown) or other
suitable electronic controls through belt motor (40, but not shown
in FIGS. 11-14). The speed is adjustable from controls on hand
controller 16 making it possible to vary the speed of belt 20
during the exercise regimen.
[0101] In the illustrative examples shown in FIGS. 11-14, a simple
incline mechanism 300 is shown in which a lever leg 302 is rotated
by an incline motor (42, but not shown in FIGS. 11-14) to raise and
lower motor housing 304. Actuation of incline motor (42, but not
shown in FIGS. 11-14) causes the rotation of lever leg 302 in the
desired direction, thus raising or lowering motor housing 304 and
belt platform 34, thus causing the decline or incline,
respectively, of belt platform 34. The degree of inclination chosen
by user U is adjustable from controls on hand controller 16 making
it possible to vary the inclination of belt 20 during the exercise
regimen.
[0102] FIGS. 11-15 schematically illustrate additional examples of
weight resistance means 46 for the treadmill 10. Each of these
additional weight resistance means 46 are operatively connected to
pivot arm 14 via what is considered a direct means, meaning in this
specification, a means not comprising a length of cable 18.
However, as disclosed above, the degree of weight resistance can be
controlled by user U. For example, in the lowest setting, it can be
possible for user U to pull pivot arm 14 all the way to a stop 200
preventing pivot arm 14 from moving any farther. In other settings,
weight resistance means 46 can be set high enough to prevent user U
from pulling pivot arm 14 all the way to stop 200. The higher the
setting of the weight resistance means 46, the heavier the
simulated object being pulled. The degree of weight resistance
chosen by user U can be adjustable from controls on hand controller
16. With this arrangement, it is therefore possible to vary the
weight resistance being dragged or pulled during the exercise
regimen.
[0103] FIG. 11A is a side sectional view of the invention showing
an alternate embodiment of a pivoting piston driven push drive
weight resistance means 46 in the resting position with pivot arm
14 resting against stop 200. FIG. 11A illustrates the use of
hydraulic cylinder 310 in pushing configuration. Hydraulic cylinder
310 is pivotally attached to base 12 and piston rod 312 is
pivotally attached directly to pivot arm 14. In this configuration,
pivot arm 14 is pivotally attached to base 12 at a position below
where piston rod 312 is attached to pivot arm. Pulling on pivot arm
14 pushes piston rod 312 into hydraulic cylinder 310, with the
fluid within hydraulic cylinder 310 providing resistance. The use
of a hydraulic cylinder 310 with known or adjustable resistance in
which the resistance is created by pushing piston rod 312 into
hydraulic cylinder 310 is known and can be used to provide a basis
for determining the simulated resistance weight being dragged or
pulled by user U. FIG. 11B is a side sectional view of the
invention showing the alternate embodiment of a pivoting piston
driven push drive weight resistance means 46 in the operating
position.
[0104] FIG. 12A is a side sectional view of the invention showing
an alternate embodiment of a rigid cam shaped push drive weight
resistance means 46 in the resting position with pivot arm 14
resting against stop 200. FIG. 12A illustrates the use of a cam
shaped resistance arm 320 in combination with a resistance source
322. Cam arm 320 is pivotally attached to base 12 and resistance
source 322 is attached to base 12 at a position somewhat removed
from cam arm 320. Cam arm 320 is operationally connected to
resistance source 322 via a flexible or rigid drive connector 326,
or directly if the mechanics permit. As shown in FIG. 12,
resistance source 322 is an electric motor acting against the
rotation caused by connector 326, as disclosed below, and connector
326 is a belt. Alternatively, resistance source 322 can be a spring
or a torsion rod or the like. Roller wheel 324 is rotatably
attached to pivot arm 14 at a position corresponding approximately
to where cam arm 320 contacts pivot arm 14 in the resting position.
In this configuration, pivot arm 14 is pivotally attached to base
12 at a position below where roller wheel 324 is attached to pivot
arm 14. Pulling on pivot arm 14 pushes roller wheel 324 against cam
arm 320 thus causing cam to rotate about cam axle 328. As connector
326 is operationally attached to cam arm 320 proximal to cam axle
328, this rotation causes the rotation of connector 326, which acts
upon resistance source 322, with resistance source 322 providing
resistance. The use of a resistance source 322 with known or
adjustable resistance of this type is known and can be used to
provide a basis for determining the simulated resistance weight
being dragged or pulled by user U. FIG. 12B is a side sectional
view of the invention showing the alternate embodiment of the rigid
cam shaped push drive weight resistance means 46 in the operating
position. FIG. 12C is a more detailed schematic view of the rigid
cam shaped push drive weight resistance means 46 shown in FIGS. 12A
and 12B.
[0105] FIG. 13A is a side sectional view of the invention showing
an alternate embodiment of a direct axle drive resistance weight
resistance 46 means in the resting position with pivot arm 14
resting against stop 200. The embodiment shown in FIG. 13A is
similar in function to the embodiment shown in FIG. 12A, but
without the use of a cam arm 320. In the embodiment shown in FIG.
13A, axle drive pulley clutch 330 is attached to or at the base of
pivot arm 14 at a position corresponding to where pivot arm 14 is
pivotally attached to base 12. Resistance source 332 is attached to
base 12 at a position somewhat removed from axle drive pulley
clutch 330. Axle drive pulley clutch 330 is operationally connected
to resistance source 332 via a flexible or rigid drive connector
336, or directly if the mechanics permit. As shown in FIG. 13,
resistance source 332 is an electric motor acting against the
rotation caused by connector 336, as disclosed below, and connector
336 is a belt. Alternatively, resistance source 332 can be a spring
or a torsion rod or the like, or an eddy current/electromagnetic.
In this configuration, pivot arm 14 is pivotally attached to base
12 at a position generally corresponding to where axle drive pulley
clutch 330 is attached to pivot arm 14. Pulling on pivot arm 14
causes axle drive pulley clutch 330 to rotate about pulley axle
338. As connector 336 is operationally attached to axle drive
pulley clutch 330 proximal to pulley axle 338, this rotation causes
the rotation of connector 336, which acts upon resistance source
332, with resistance source 332 providing resistance. The use of a
resistance source 332 with known or adjustable resistance of this
type is known and can be used to provide a basis for determining
the simulated resistance weight being dragged or pulled by user U.
FIG. 13B is a side sectional view of the invention showing the
alternate embodiment of the direct axle drive weight resistance
means 46 in the operating position. FIG. 13C is a more detailed
schematic view of the direct axle drive weight resistance means 46
shown in FIGS. 13A and 13B.
[0106] FIG. 14A is a side sectional view of the invention showing
an alternate embodiment of a direct axle mounted spring resistance
weight resistance means 46 in the resting position with pivot arm
14 resting against stop 200. In the embodiment shown in FIG. 14A,
direct axle spring 340 is attached to or at the base of pivot arm
14 at a position corresponding to where pivot arm 14 is pivotally
attached to base 12. Direct axle spring 340 in this embodiment is
the resistance source. In this configuration, pivot arm 14 is
pivotally attached to base 12 at a position generally corresponding
to where direct axle spring 340 is attached to pivot arm 14. Direct
axle spring 340 is a torsion and/or compression spring or pair of
springs attached at one end to, or ultimately to, base 12 and at
another end to pivot arm 14. Pulling on pivot arm 14 causes direct
axle spring 340 to twist (helically) about direct axle spring axis
348, which provides torsional or compressional resistance,
depending on which direction direct axle spring 340 is being
twisted. The use of a direct axle spring 340 with known or
adjustable resistance of this type is known and can be used to
provide a basis for determining the simulated resistance weight
being dragged or pulled by user U. FIG. 14B is a side sectional
view of the invention showing the alternate embodiment of the
direct axle mounted spring resistance means 46 in the operating
position. FIG. 14C is a more detailed schematic view of the direct
axle mounted spring weight resistance means 46 shown in FIGS. 14A
and 14B.
[0107] FIG. 15 is a side sectional view of the invention showing an
alternate embodiment of a direct drive tensile weight resistance
means 46 in combination with an alternately mounted pivot arm. The
embodiment shown in FIG. 15 is similar in function to the
embodiment shown in FIG. 11, but with the hydraulic cylinder 310
being attached to pivot arm 14 at a position below where pivot arm
14 is attached to base 12. FIG. 15 illustrates the use of hydraulic
cylinder 310 in pulling configuration. Hydraulic cylinder 310 is
pivotally attached to base 12 and piston rod 312 is pivotally
attached directly to pivot arm 14. In this configuration, pivot arm
14 is pivotally attached to base 12 at a position above where
piston rod 312 is attached to pivot arm 14. Pulling on pivot arm 14
pulls piston rod 312 out of hydraulic cylinder 310, with the fluid
within hydraulic cylinder 310 providing resistance. The use of a
hydraulic cylinder 310 with known or adjustable resistance in which
the resistance is created by pushing piston rod 312 into hydraulic
cylinder 310 is known and can be used to provide a basis for
determining the simulated resistance weight being dragged or pulled
by user U. In this configuration, the slot or hole through which
pivot arm 14 passes through the structure of base 12 can be reduced
or eliminated.
[0108] FIGS. 16 and 17 show alternative embodiments of a
combination treadmill and reverse dragging treadmill and having a
more compact lower housing body 12, a belt platform 34 extending
from a proximal end operationally connected to the lower body
housing 12, to a distal end on which an incline mechanism 300 is
attached. To operate the invention as a conventional treadmill,
belt motor 40 causes belt 20 to travel in one direction and to
operate the invention as a reverse treadmill, belt motor 40 is
reversed and causes belt 20 to travel in the other direction. In
each of the illustrative embodiments shown in FIGS. 16 and, the
treadmill 10 is shown with the cable 18 embodiment; however, it
should be noted that the alternative non-cable 18 embodiments also
can be configured as shown in each of FIGS. 16 and 17. These
alternative embodiments are to show that the invention can be
manufactured in various configurations. For example, in the
configurations shown in FIGS. 16 and 17, belt platform 34 can be
structured to be raised or folded vertical so as to provide a
smaller footprint for storage.
[0109] FIGS. 16 and 17 also show a pivot arm 14 structured more
like the conventional control console of a conventional treadmill.
More specifically, pivot arm 14 is a unitary structure rather than
the two- or multi-piece structure disclosed above. With such a
configuration, pivot arm 14 can give user U a more conventional
feel and can comprise the more conventional features and placement
of features that user U may be used to. Although in the dragging
mode one-piece pivot arm 14 may pivot slightly more downward than
two-piece pivot arm 14, the difference can be made slight or
negligible with common engineering solutions, such as adjusting the
angle at which pivot arm 14 is attached to lower base housing 12,
including a telescoping device allowing the handhold portion of
pivot arm 14 to be raised or lowered, and the like. Alternatively,
pivot arm 14 as shown in FIGS. 16 and 17 also can be a two- or
multi-piece structure with the hand console 16 being pivotally or
hingedly attached to the upper end of pivot arm 14.
[0110] FIG. 16A is a side sectional view of an embodiment of the
invention shown in the drag operating position with a level belt
platform 34. In this embodiment, belt motor 40 is located within
lower housing body 12, along with weight resistance means 46, but
incline motor 42 is located in incline motor housing 304 at the
distal end of belt platform 34. Lever leg 302 also is located in
operational proximity to incline motor 42 and incline motor housing
304. FIG. 16B is a side sectional view of the embodiment of the
invention shown in FIG. 16A in the drag operating position but with
an inclined belt platform 34. FIG. 16C is a side sectional view of
the embodiment of the invention shown in FIG. 16A in the drag
operating position but with a declined platform. Similarly, FIG.
17A is a side sectional view of embodiment of the invention shown
in FIG. 16A, but in the forward ambulatory position with a level
belt platform 34. FIG. 17B is a side sectional view of the
embodiment of the invention shown in FIG. 17A in the forward
ambulatory position but with an inclined belt platform 34. FIG. 17C
is a side sectional view of the embodiment of the invention shown
in FIG. 17A in the forward ambulatory position but with a declined
belt platform 34.
[0111] The invention also can comprise additional optional
features. For example, the invention can comprise a safety
mechanism to prevent user U from speeding up the movement of belt
20 due to the weight resistance of the weight resistance means 46,
and from speeding up the movement of belt 20 to a speed faster than
what is shown on the hand controller 16 speed display 98. In other
words, treadmill 10 can further comprise a means for preventing
belt 20 from running out from under user U should either user U
move too fast relative to belt 20 or belt 20 move too fast relative
to user U. This also would help prevent the force of user's U foot
plant from undesirably increasing the speed of belt 20. Clutches
attached to belt 20 or axles 48, 50 can be used, among other known
mechanisms. For another example, the step offs 22, 24, 26
optionally can be and preferably are of a substantial width to
allow for a wider platform for user U to step onto or step off of
treadmill 10. Side rails and kill switches also can be used. Heart
rate monitors can be used, and the microprocessor, or other
suitable electronic controllers, can be configured to allow for
heart rate monitoring and for the adjustment of belt 20 speed and
incline and the level of weight resistance to maintain a desired
heart rate.
[0112] In stark contrast to known treadmills, the present invention
accomplishes a different exercise regimen than an aerobic walking
or running workout. Initially, belt travels in the opposite
direction than the belt on known treadmills to provide the basis
for the dragging or pulling motion. Further, the use of a weight
resistance means 46 in combination with a walking or running motion
in general and a backwards walking or running motion in particular
provides a more complex exercise regimen. It has been found that
the combination of walking or running backwards in conjunction with
the simulation of dragging or pulling a load provides a useful
aerobic and/or anaerobic work out and can strengthen various
muscles and muscle groups, specifically leg muscles and the gluteus
maximus and also possibly arm, chest, shoulder and back
muscles.
[0113] Other alternatives and embodiments can comprise one or more
of the following features. The treadmill drive motor assembly and
incline assembly can be positioned at either end, or in the middle,
of the base. The hand controller can be wireless and connected to
the weight resistance means with a flexible connection, such as
wire or polymer cable and, in such an alternative embodiment, the
pivot arm would not be necessary. The pivot arm can pivot on the
top portion of the lower base housing and extend into the lower
base housing to connect to the weight resistance means, as in FIG.
15, or can be pivotally connected to the bottom of the lower base
housing, as in FIG. 12. The belt platform can incline and decline
in both directions, providing incline or decline resistance for
both conventional treadmill operation and for reverse treadmill
operation. The pivot arm and/or the hand console can have a docking
or fixed position for forward walking, for storage, and for greater
safety in getting on and off of the treadmill. Additionally, the
invention can have more common features including the ability to
incline and decline at various or continuous degree settings and a
belt that moves at various or continuous speeds. Further, there can
be two or more pivot arms (or support members, uprights or pylons),
with each pivot arm or the equivalent being a one-, two- or
multi-piece structure with the hand console being pivotally or
hingedly attached to one or more of the pivot arms or the
equivalent.
[0114] While the invention has been described in connection with
certain preferred embodiments, it is not intended to limit the
spirit or scope of the invention to the particular forms set forth,
but is intended to cover such alternatives, modifications, and
equivalents as may be included within the true spirit and scope of
the invention as defined by the appended claims.
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