U.S. patent application number 11/095819 was filed with the patent office on 2005-12-08 for exercise apparatus with differential arm resistance assembly.
Invention is credited to Earl, Chad J., Olson, Michael L., Rowser, Brandon.
Application Number | 20050272577 11/095819 |
Document ID | / |
Family ID | 37073897 |
Filed Date | 2005-12-08 |
United States Patent
Application |
20050272577 |
Kind Code |
A1 |
Olson, Michael L. ; et
al. |
December 8, 2005 |
Exercise apparatus with differential arm resistance assembly
Abstract
The present invention relates to exercise apparatuses having a
resistance assembly which utilizes a compression spring in
combination with a differential resistance arm to regulate the
amount of resistance provided to the user for use in exercise. The
resistance assembly of the present invention utilizes a compression
spring, gas shock, or other known resistance mechanisms. The
differential resistance arm is provided in connection with the
compression spring to regulate the amount of resistance provided
for use during exercise. The differential resistance arm includes a
differential contact surface which has a substantially curved
configuration. The curved configuration maintains a linear
increase/decrease in resistance subsequent to input from a user
increasing or decreasing the resistance.
Inventors: |
Olson, Michael L.; (Logan,
UT) ; Rowser, Brandon; (Logan, UT) ; Earl,
Chad J.; (Logan, UT) |
Correspondence
Address: |
WORKMAN NYDEGGER
(F/K/A WORKMAN NYDEGGER & SEELEY)
60 EAST SOUTH TEMPLE
1000 EAGLE GATE TOWER
SALT LAKE CITY
UT
84111
US
|
Family ID: |
37073897 |
Appl. No.: |
11/095819 |
Filed: |
March 30, 2005 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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11095819 |
Mar 30, 2005 |
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10770273 |
Feb 2, 2004 |
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10770273 |
Feb 2, 2004 |
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10340562 |
Jan 10, 2003 |
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6685607 |
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11095819 |
Mar 30, 2005 |
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10968250 |
Oct 19, 2004 |
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10968250 |
Oct 19, 2004 |
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10647729 |
Aug 25, 2003 |
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Current U.S.
Class: |
482/123 ;
482/121; 482/128 |
Current CPC
Class: |
A63B 23/1281 20130101;
A63B 21/00072 20130101; A63B 21/0087 20130101; A63B 21/154
20130101; A63B 21/4047 20151001; A63B 21/00065 20130101; A63B
2220/17 20130101; A63B 21/4031 20151001; A63B 21/4043 20151001;
A63B 23/03566 20130101; A63B 21/00076 20130101; A63B 21/05
20130101; A63B 23/03525 20130101; A63B 21/04 20130101; A63B 23/0494
20130101 |
Class at
Publication: |
482/123 ;
482/128; 482/121 |
International
Class: |
A63B 021/02; A63B
021/045 |
Claims
What is claimed is:
1. An exercise apparatus configured to provide resistance to allow
a user to undertake aerobic and anaerobic exercise in a home or
commercial gym setting, the exercise apparatus comprising: a frame
providing support to the exercise apparatus; a resistance assembly
operably linked to the frame, the resistance assembly comprising: a
resistance member providing resistance for use in exercise; a lever
arm utilizing resistance from the resistance member to provide
variable amounts of resistance for use in exercise; and a
connecting mechanism allowing the user to utilize resistance from
the resistance assembly for use during exercise.
2. The exercise apparatus of claim 1, wherein the resistance member
comprises a compression spring.
3. The exercise apparatus of claim 1, wherein the resistance member
comprises a gas shock.
4. The exercise apparatus of claim 1, wherein the resitance member
comprises a mechanism configured to provide resistance for use
during exercise.
5. The exercise apparatus of claim 1, wherein the lever arm
includes a differential contact surface.
6. The exercise apparatus of claim 1, wherein the connecting
mechanism comprises a cable and pulley system.
7. An exercise apparatus configured to provide resistance to allow
a user to undertake aerobic and anaerobic exercise in a home or
commercial gym setting, the exercise apparatus comprising: a frame
providing support to the exercise apparatus; a resistance assembly
operably linked to the frame such that the resistance assembly is
positioned perpendicular to the frame; the resistance assembly
comprising: a differential resistance arm for regulating the amount
of resistance provided by the resistance member; a resistance
member providing an amount of resistance for use in exercise; and a
cable and pulley system allowing the user to utilize resistance
from the resistance assembly for use during exercise.
8. The exercise apparatus of claim 7, wherein the resistance member
is linked to the differential resistance arm utilizing a link
arm.
9. The exercise apparatus of claim 7, wherein resistance member
comprises a compression spring.
10. The exercise apparatus of claim 9, wherein the compression
spring is compressed in a linear motion.
11. The exercise apparatus of claim 7, further comprising a guide
and guide slot to facilitate linear movement of the resistance
member during exercise.
12. The exercise apparatus of claim 7, further comprising a lead
screw for use with the differential resistance arm to control the
amount of resistance provide to the user.
13. The exercise apparatus of claim 7, further comprising a user
interface for controlling the amount of resistance provided to the
user during exercise.
14. The exercise apparatus of claim 13, wherein the user interface
includes one or more preprogrammed exercise routines that can be
selected by a user.
15. An exercise apparatus configured to provide resistance to allow
a user to undertake aerobic and anaerobic exercise in a home or
commercial gym setting, the exercise apparatus comprising: a frame
providing support to the exercise apparatus; a resistance assembly
operably linked to the frame such that the resistance assembly is
positioned perpendicular to the frame; the resistance assembly
comprising: a differential resistance arm having a differential
contact surface for regulating the amount of resistance provided by
the resistance member; a compression spring providing an amount of
resistance for use in exercise; a linkage arm positioned between
the compression spring and the differential resistance arm wherein
the differential resistance arm, the resistance member, and the
linkage arm allow linear movement of the resistance member during
exercise; and a connecting mechanism comprising a cable and pulley
system allowing the user to utilize resistance from the resistance
assembly during exercise.
16. The exercise apparatus of claim 15, further comprising a user
interface for automatically controlling the amount of resistance
provided by the resistance assembly.
17. The exercise apparatus of claim 16, further comprising a
repetition sensor for detecting the number of repetitions conducted
during exercise.
18. The exercise apparatus of claim 15, wherein the compression
spring is secured such that compression of the spring is
substantially linear in nature.
19. The exercise apparatus of claim 18, further comprising a lead
screw for use with the differential resistance arm.
20. The exercise apparatus of claim 19, further comprising a
threaded coupler adapted to secure the linkage arm to the lead
screw, wherein the position of the threaded coupler along the
length of the lead screw determines the amount of resistance
experienced by the user during exercise. -Page 34 - Docket No.
13914.849.1.1
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present patent application claims priority and is a
continuation-in-part application of U.S. patent application Ser.
No. 10/770,273, filed Feb. 2, 2004, and entitled "Handle for
Selectively Positioning Member Relative to Arm," which is a
continuation application of U.S. patent application Ser. No.
10/340,562 filed Jan. 10, 2003, which is now U.S. Pat. No.
6,685,607, issued Feb. 3, 2004, and entitled "Exercise Device with
Resistance Mechanism Having a Pivoting Arm and a Resistance
Member." The present patent application also claims priority and is
a continuation-in-part application of U.S. patent application Ser.
No. 10/968,250, filed Oct. 19, 2004, and entitled "Exercise Device
with Single Resilient Elongate Rod and Weight Selector Controller,"
which is a continuation-in-part of U.S. patent application Ser. No.
10/647,729, filed Aug. 25, 2003, entitled "Exercise Device with
Centrally mounted Resistance Rod and Automatic Weight Selector
Apparatus." For purposes of disclosure, the foregoing applications
are incorporated by reference in their entirety.
BACKGROUND OF THE INVENTION
[0002] 1. The Field of the Invention
[0003] The present invention relates to exercise apparatuses. In
more particular, the present invention relates to exercise devices
utilizing a compression spring and differential resistance arm for
providing variable resistance for use during exercise.
[0004] 2. The Relevant Technology
[0005] In recent years, there has been a trend towards the use of
exercise equipment, whether it is at a gym or at home. Although gym
exercise equipment provides many benefits to an exercising user, it
is typically expensive to become a member of the gym and usually
time consuming and inconvenient to exercise at the gym. Many
individuals are turning to home exercise equipment to obtain the
health benefits associated with daily exercising.
[0006] Although home exercise equipment is more convenient to use,
in many instances the devices are cumbersome and difficult to use.
For instance, many multi-gym exercise devices use free weights or
other heavy weights to provide resistance during an exercise
regime. These weights make positioning and subsequent movement of
the exercise device difficult. Typically, once a multi-gym device
has been set-up in one position, it will remain there for a
significant amount of time without being moved. When the device is
to be moved, the owner must spend a long period to dismantle the
device, move the parts to the new position within the home, and
reassemble the exercise device. Additionally, use of such a
multi-gym device requires the user to set aside a significant
amount of space within the user's home. This reduces the livable
space within the home and typically requires that an area of the
home be dedicated to the performance of exercise regimes.
[0007] Typical exercise devices use weights to provide resistance
to an exercising user. The selection of weights may be difficult to
achieve before and during an exercise regime. Additionally,
selection of a particular resistance is limited to the incremental
weights provided with the exercise device. For instance, the
adjustability of the exercise device to a particular weight is
often limited by the minimum numerical weight value of the weights
included with the exercise device.
[0008] In addition to the above, the adjustability of the exercise
device limits the usability of the exercise device. Many exercise
devices require removal of pins and repositioning of weights to
vary the resistance applied to an exercising user. This may be time
consuming and difficult to achieve depending the particular
configuration of the exercise device. Over time, there is a high
likelihood that the pins associated with the exercise device will
become lost, thereby preventing a user exercising using the
exercise device.
[0009] Some exercise devices attempt to overcome the limitations
associated with the use of heavy weights to provide resistance to
an exercising user. These exercising devices may utilize a flexible
arm or rod that provides resistance as a user exercises. However,
such flexible arms can take more than the desired amount of space,
can require manual manipulation, or can be otherwise cumbersome to
use efficiently.
BRIEF SUMMARY OF THE INVENTION
[0010] The present invention relates to exercise apparatuses. More
particularly, the present invention relates to exercise apparatuses
having a resistance assembly which utilizes a compression spring in
combination with a differential resistance arm to regulate the
amount of resistance provided to the user for use in exercise. The
resistance assembly of the present invention utilizes a compression
spring, gas shock, or other known resistance mechanisms including,
but not limited to, resilient bands, compressible foam members, or
the like. The differential resistance arm is provided in connection
with the compression spring to regulate the amount of resistance
provided for use during exercise. The differential resistance arm
includes a differential contact surface which has a substantially
curved configuration. The curved configuration maintains a linear
increase/decrease in resistance subsequent to input from a user
increasing or decreasing the resistance.
[0011] According to one embodiment of the present invention, a lead
screw and lead screw motor are provided in connection with the
differential resistance arm. A linkage arm is secured to the lead
screw utilizing a threaded coupler. In response to a request from a
user to increase or decrease the amount of resistance provided from
the resistance assembly, the lead screw motor turns the lead screw
changing the position of the threaded coupler along the length of
the differential resistance arm. The differential resistance arm
provides a mechanical advantage such that when the position of the
threaded coupler is moved along the length of the differential
resistance arm the mechanical advantage of the differential
resistance arm is increased or decreased to change the amount of
resistance experienced by the user during exercise.
[0012] The configuration of the differential resistance arm and
linkage arm allows the compression spring to be compressed in a
substantially linear manner without requiring rotation or pivoting
of any portion of the compression spring. This provides a fluid and
reliable motion of the compression spring which limits breakage or
other stresses on the compression spring during exercise. The
differential contact surface of the differential resistance arm
provides for effective and continuous contact between the threaded
coupler and the differential resistance arm when the threaded
coupler is positioned at a variety of positions along the
differential contact surface of the differential resistance arm. As
a result, a reliable, efficient, and compact resistance assembly
can be provided in connection with the exercise device.
[0013] According to one embodiment of the present invention a guide
and guide slot are provided in connection with the compression
spring. The guide, guide slot, and compression spring are mounted
on a compression spring securement frame member. When the
compression spring is in operation, the compression spring
securement frame member, the guide, and guide slot maintain smooth,
continuous, and linear movement of the compression spring as the
compression spring is compressed. According to another embodiment
of the present invention, a cable and pulley is provided to utilize
resistance from the resistance member and convey the resistance to
the user for use in exercise. In one embodiment, a plurality of
pulleys are positioned at one end of the differential resistance
arm and a plurality of pulleys are positioned on the frame of the
resistance assembly. A cable is threaded from the pulleys on the
differential resistance arm to the pulleys on the frame.
Additionally, the cable of the cable and pulley system extends from
the resistance assembly to a position on the exercise device. The
cable is connected to a handle, or other grasping member allowing
the user to utilize the resistance from the compression spring
during an exercise routine. Resistance from the resistance member
is conveyed to the differential resistance arm utilizing the
linkage arm. As a result, the cable and pulley system links
directly to the differential resistance arm to utilize such
resistance from the resistance member and convey the resistance to
the user.
[0014] According to one embodiment of the present invention,
additional resistance can be added by the user to the resistance
assembly. Additional compression springs can be added to an
external connection point on the housing of the resistance assembly
to add such additional resistance. In another embodiment, a
different type of resistance such as a resilient band, or other
known resistance member can be utilized. In the embodiment, the
additional resistance compression springs are engaged by an
external portion of the guide. Movement of the differential
resistance arm during exercise compresses both the compression
spring internal to the resistance assembly and the ancillary
compression spring or springs added by the user. As will be
appreciated by those skilled in the art, a variety of types and
configuration of exercise mechanisms such as lat towers, weight
benches, squat towers, leg press, or preacher curl mechanisms can
be utilized.
[0015] These and other objects and features of the present
invention will become more fully apparent from the following
description and appended claims, or may be learned by the practice
of the invention as set forth hereinafter.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] To further clarify the above and other advantages and
features of the present invention, a more particular description of
the invention will be rendered by reference to specific embodiments
thereof which are illustrated in the appended drawings. It is
appreciated that these drawings depict only typical embodiments of
the invention and are therefore not to be considered limiting of
its scope. The invention will be described and explained with
additional specificity and detail through the use of the
accompanying drawings in which:
[0017] FIG. 1 is a perspective view of an exercise apparatus
according to the present invention.
[0018] FIG. 2 is a rear perspective view of the resistance assembly
in connection to the exercise apparatus.
[0019] FIG. 3 is perspective view of the resistance assembly
illustrating the differential resistance arm.
[0020] FIG. 4 is a side cutaway view of the resistance assembly
illustrating the guide which maintains linear compression of the
compression spring.
[0021] FIG. 5A is a side view illustrating the differential
resistance arm, compression spring, and linkage arm.
[0022] FIG. 5B is a side view of the differential resistance arm in
which the resistance assembly has been actuated.
[0023] FIG. 6A is a side view of the differential resistance arm in
which the threaded coupler is in a minimum resistance position and
the differential resistance arm is in a relaxed state.
[0024] FIG. 6B illustrates the threaded coupler in a minimum
resistance position in which the differential resistance arm is in
an actuated position.
[0025] FIG. 7A illustrates the threaded coupler in a maximum
resistance position in which the differential resistance arm is in
a relaxed position.
[0026] FIG. 7B illustrates the threaded coupler in a maximum
resistance position in which the differential resistance arm is in
an actuated position.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0027] The present invention relates to an exercise device having a
resistance assembly which utilizes a differential resistance arm
and a compression spring to provide resistance for use in exercise.
Additionally, the present invention relates to a user interface for
use with the differential resistance arm. The user interface allows
the user to select an amount of resistance to be utilized during
exercise. The user interface subsequently controls application of
the resistance through the full range of motion according to a user
selected routine, including automatically setting amounts of
resistance, numbers of sets and repetitions of particular
exercises, and combinations of exercises to be performed. In this
manner, the exercise apparatus of the present invention provides a
user with controllable resistances, while providing the user with a
range of motion that is greater than the amount that the
differential resistance arm or compression spring is displaced
during the exercise.
[0028] FIG. 1 illustrates an exercise device 10 according to one
aspect of the present invention. Exercise device 10 provides a
mechanism for allowing a user to undertake aerobic and anaerobic
exercises in a home or institutional gym setting. Exercise device
10 provides a mechanism for allowing a user to undertake a variety
of types and configurations of exercises without needing an
exercising partner to assist in the management of the resistance
apparatuses during exercise. In the illustrated embodiment,
exercise device 10 includes a frame 11, a resistance assembly 12, a
cable and pulley system 18, and user interface 17. The exercise
device. 10 also includes a squat apparatus 19, a leg exercising
mechanism 16, a lat tower 14, and a bench 39 that will be discussed
in more detail hereinafter. As will be appreciated by those skilled
in the art, a variety of types and combinations of components can
be utilized with exercise apparatus without departing from the
scope and spirit of the present invention.
[0029] Frame 11 provides a structure upon which other components of
exercise device 10 are positioned. Additionally, support frame 11
provides stability to exercise device 10 to provide a safe exercise
environment. Resistance assembly 12 is positioned adjacent to frame
11. Resistance assembly 12 includes a differential resistance arm
61 and a compression spring 78 (see FIG. 2). The compression spring
78 provides resistance for use during exercise. The differential
resistance arm 61 regulates the amount of resistance provided to
the user in connection with compression spring 78.
[0030] User interface 17 is linked to resistance assembly 12. User
interface 17 allows a user to select an amount of resistance to be
used in exercise without having to manually adjust components of
the system. User interface 17 allows the user to increase or
decrease the amount of resistance experienced during exercise. In
one embodiment user interface 17 includes a plurality of
preprogrammed exercise routines that can be selected by the user. A
description of a user interface or electronic weight selector
system for use with the exercise device of the present invention is
provided in U.S. patent application Ser. No. 10/968,250, filed Oct.
19, 2004, and entitled "Exercise Device with Single Resilient
Elongate Rod and Weight Selector Controller," the entire contents
of which are hereby incorporated by reference.
[0031] Exercise device 10 also includes squat apparatus 19, leg
exercising mechanism 16, lat tower 14, and bench 39. Squat
apparatus 19 is coupled to an upright support member 22 of support
frame 11. Squat apparatus 19 allows a user to utilize resistance
from resistance assembly 12 to perform squat exercise routines.
Bench 39 is also coupled to frame 11. Bench 39 provides a surface
on which a user can sit or lay to perform certain exercise routines
including the bench press, seated flies, bench curls, and the like.
In the illustrated embodiment, bench 39 is slideable along a
portion of frame 11. Leg exercising mechanism 16 is coupled to
frame 11 at a distal portion of support frame 11. Leg exercising
mechanism 16 allows the user to utilize resistance from the
resistance assembly 12 to perform a variety of exercises including
the bicep curl, quadricep lift, hamstring curl, and a variety of
other types and configurations of exercises.
[0032] Lat tower 14 is also coupled to frame 11. Lat tower 14
allows a user to perform lat pull down and other exercises. As will
be appreciated by those skilled in the art, a variety of types and
configurations of exercise machines can be utilized without
departing from the scope and spirit of the present invention. For
example, in one embodiment an exercise machine does not include all
of the illustrated components, such as lat tower or
bicep/quadriceps exerciser.
[0033] As previously discussed, frame 11 provides support for other
components of exercise device 10. Frame 11 includes a base 20,
upright support 22, and leg lever support 48. Base 20 is coupled to
the lower portion of upright support member 22. Base 20 provides
lateral stability to exercise device 10 to provide a stable
exercising environment. Additionally, base 20 provides a deck on
which various exercises can be performed by a user such as squat
routines, standing lat pull downs, and the like. Base 20 provides a
surface allowing a user to rest his/her feet thereon thereby
allowing a user to perform certain exercise routines such as
squats, and other standing or sitting exercise routines. In the
illustrated embodiment, base 20 includes a textured upper surface
which minimizes slippage of a user's feet on base 20 during
exercise routines.
[0034] Base 20 further includes one or more wheels 24. Wheels 24
are positioned on the portion of base 20 opposite riser bench 39.
Wheels 24 provide a structural support member as well as a
mechanism for moving exercise device 10. The ability to move
exercise device 10 utilizing rollers 166 can be particularly
beneficial when exercise device 10 is in a folded storage position.
This allows a user to move exercise device 10 to a closet, room
corner, or other desired storage location when exercise device 10
is not in use. In one embodiment, wheels 24 include a first and
second wheel positioned on opposite lateral sides of base 20.
[0035] Upright support member 22 is coupled to base 20 and the
horizontal support member of bench 39. Upright support member 22
provides a structure on which other components of the exercise
machine can be affixed. For example, in the illustrated embodiment,
resistance assembly 12, user interface 17, a squat apparatus 19,
and a lat tower 14 are positioned on or next to upright support
member 22. As will be appreciated by those skilled in the art, a
variety of types and configurations of frame 11 can be utilized
without departing from the scope and spirit of the present
invention. For example, in one embodiment, a plurality of leg
supports are utilized. In an alternative embodiment, the other
components of exercise device are connected to a secondary
component instead of to upright support member. In an alternative
embodiment, distal components of frame include a support structure
for a bench that is a separate stand alone component from upright
support member and base.
[0036] Cable and pulley system 18 allows a user to utilize
resistance from resistance assembly 12 during exercise. Cable and
pulley system 18 includes a primary cable 30a, secondary cables
30b, c, tertiary cable 30d, handles 31a, b, and pulley stations
32a, b. In the illustrated embodiment, primary cable 30a is
threaded from the left side of exercise device 10, through
resistance assembly 12, to the rights side of exercise device 10.
Primary cable 30a conveys resistance from resistance assembly 12 to
a location where it can be utilized by the user. Primary cable 30a
is threaded to pulley stations 32a, b to provide smooth and
efficient movement of primary cable 30a. In one embodiment, handles
31a, b are configured to be affixed directly to the ends of primary
cable 30a.
[0037] Secondary cables 30b, c can be affixed directly to the ends
of primary cable 30a to allow a user to conduct additional exercise
routines. For example, secondary cables 30b, c allow the user to
perform lat pull down and other exercises that require additional
cable length. Tertiary cable 30d connects primary cable 30a to
other components of the exercise device such as leg exercising
mechanism 16 and seat member 38 (so as to perform seated rows).
[0038] Bench 39 provides a surface on which a user can rest to
perform exercise routines. Bench 39 includes a seat member 38, a
back rest 40. In the illustrated embodiment, seat member 38
includes a padded surface. Seat member 38 is slidably coupled to
horizontal support member of the frame 11 allowing a user to
perform seated rows and similar exercise devices. Back rest 40 is
pivotally coupled to seat member 38. Back rest 40 provides a
mechanism for supporting a user's back in either a sitting or
inclined position during exercise routines such as bench press,
pectoral fly, and the like. Pivotal coupling between seat member 38
and back rest 40 allows back rest 40 to be placed in a variety of
positions and at a variety of angles relative to seat member 38. In
one embodiment, back support 40 is removable from seat member 38
permitting a user to conduct certain exercises, such as seated
rows, and/or place exercise apparatus in a folded position.
[0039] In one embodiment, the base of seat member includes a
plurality of roller wheels (not shown) positioned relative to
horizontal support member of frame 11 to allow seat member 38 to
slide relative to horizontal support member of frame 11. The seat
member 38 also includes a locking pin providing a mechanism for
securing a desired bench position.
[0040] Lat tower 14 is positioned on the upper end of upright
support member 22. Lat tower 14 includes a support arm which
provides displacement from upright component support member 22 to
allow a user to conduct a lat pull down exercises with a lat bar.
Pulleys are positioned at a desired lateral location to enable
exercise with the lat bar. As will be appreciated by those skilled
in the art, a variety of types and configurations of lat towers can
be utilized without departing from the scope and spirit of the
present invention.
[0041] A squat apparatus 19 is secured to upright support member 22
to allow a user to conduct squat exercises on exercise device 10.
Squat apparatus 19 is slidably coupled to upright support member
22. A user conducts a squat routine by raising and lowering squat
apparatus 19. Squat apparatus 19 includes back support 52 and hand
grip assemblies 54a, b. Back support 52 contacts a user's back
during exercise while providing support and cushioning to forces
exerted by the user against squat apparatus 19. Hand grip
assemblies 54a, b are grasped by the user during exercise to raise
and lower squat apparatus 50.
[0042] In preparation for conducting a squat exercise routine, back
rest 40 is disconnected from seat member 38 and removed from the
horizontal support member of frame 11. This allows the user to
straddle the horizontal support member of frame 11 with the user's
feet being positioned on base 20. The user then raises and lowers
squat apparatus 19 by grasping hand grip assemblies 54a, b while
the user's back contacts back rest 52. As will be appreciated by
those skilled in the art, a variety of types and configurations of
squat apparatuses can be utilized to conduct a squat routine
without departing from the scope and spirit of the present
invention. The configuration and angle of squat apparatus 50 on
upright support member 22 ensures smooth and predictable movement
during a squat routine.
[0043] A leg exercising machine 16 utilized in connection with the
resistance assembly 12. Leg exercising machine 16 is coupled to leg
lever support 48. Leg exercising machine 16 includes a leg lever 44
and an arm curl lever 50. Leg lever 44 allows a user to conduct
exercise routines relating to the quadriceps and other leg muscles.
Arm curl lever 50 allows the user to conduct exercise routines
related to the biceps and other muscles of the user's body. A
preacher curl 42 is provided to allow the user to rest and/or
position portions of his/her body during use of leg lever 44 and/or
arm curl lever 50.
[0044] FIG. 2 is a rear perspective view of exercise device 10
illustrating resistance assembly 12 according to one embodiment of
the present invention. In the illustrated embodiment, pulley
station 32b is shown in greater detail. Pulley station 32b is
utilized in connection with primary cable 30a. Primary cable 30a
includes a clip 56 positioned at its terminal end and a stop 58
positioned adjacent its terminal end. In the illustrated
embodiment, pulley station 32b includes a pulley 60. Pulley 60 is
configured to be pivotal relative to frame 11 to allow the user to
exercise at a variety of different angles and positions relative to
pulley station 32b.
[0045] Resistance assembly 12 is operatively linked to frame 11 to
allow a user to utilize resistance from resistance assembly 12 for
use in exercise. In the illustrated embodiment, resistance assembly
12 is positioned perpendicularly relative to frame 11. By being
positioned perpendicularly relative to exercise frame 11,
resistance assembly 12 provides an overall more compact and
efficient storage design to exercise device 10. The overall lateral
dimension of resistance assembly 12 is essentially the same width
as base 20 of frame 11. As a result, when a user folds the seat
portion of exercise device 10 can easily be rolled into a corner so
as not to interfere with normal daily activities.
[0046] In the illustrated embodiment, resistance assembly 12
includes a differential resistance arm 61 which operates in
connection with compression spring 78 to provide differential
resistance to a user during exercise. Differential resistance arm
is pivotally coupled to resistance assembly frame 62. As a user
retracts the ends of primary cable (not shown) differential
resistance arm 61 is pivoted. In the illustrated embodiment,
differential resistance arm 61 includes a differential contact
surface 63. Differential contact surface 63 allows the system to
control the amount of resistance provided during exercise while
maintaining contact with a threaded coupler 76.
[0047] Resistance assembly frame 62 surrounds most of the
components of resistance assembly frame 62. Resistance assembly
frame 62 provides support for the other components of resistance
assembly 12. Resistance assembly frame 62 also provides a base for
securing and ensuring proper operation of compression spring
78.
[0048] A plurality of pulleys are provided in connection with
resistance assembly 12. The plurality of pulleys facilitate proper
operation of resistance assembly 12 while allowing the user to
utilize resistance from resistance assembly 12 during exercise. In
the illustrated embodiment, resistance arm pulleys 64a-n are
connected to the free end of differential resistance amp 61. Frame
pulleys 66a-n are secured to resistance assembly frame 62.
Transition pulleys 68a-n are provided at a variety of locations
relative to resistance assembly 12. Transition pulleys 68a-n
facilitate the connection between primary cable 30a (not shown) and
resistance assembly 12. During exercise, as a user retracts the
primary cable of cable and pulley system 18, the primary cable
pulls resistance arm pulley 64a-n toward frame pulley 66a-n.
[0049] As pulleys 64a-n are drawn toward pulleys 66a-n, the free
end of differential resistance arm is displaced. This results in
pivoting of differential resistance arm 61 causing actuation of
compression spring 78. Compression spring 78 provides a
counteracting force to movement of differential resistance arm 61.
This counteracting force provides the resistance utilized by the
user during exercise. In one embodiment, the amount of resistance
provided by compression spring 78 is fixed. The differential
resistance arm 61 utilizes the fixed amount of resistance from the
compression spring 78 to provide variable resistance to the user.
The user can add one or more ancillary compression springs 93a, b
to increase the amount of resistance provided by the exercise
device. In one embodiment, compression springs 78 provide a maximum
of 220 pounds of resistance for use in exercise. The ancillary
compression springs 93a,b add up to between 110 and 220 additional
pounds of resistance providing a total of about 330 to 440 pounds
of resistance. In the illustrated embodiment, the configuration of
resistance arm pulley 64a-n and frame pulley 66a-n provides a
compound pulley effect. As a result, a greater stroke length is
provided to the primary cable during operation of exercise device
10. In other words, the amount of overall stroke length is greater
than the total displacement of the free end of differential
resistance arm 61.
[0050] As will be appreciated by those skilled in the art, a
variety of types and configurations of frame cable and pulley
systems can be utilized without departing from the scope and spirit
of the present invention. For example, in one embodiment a separate
cable is provided to connect the frame pulleys and the resistance
arm pulleys other than the primary cable. In another embodiment, a
pulley system is utilized which does not provide a compounding
effect as that illustrated in FIG. 2.
[0051] In the illustrated embodiment, a lead screw 70 and lead
screw motor 72 are utilized in connection with differential
resistance arm 61. Lead screw 70 allows the differential resistance
arm 61 to utilize the fixed amount of resistance from compression
spring 78 to provide varying amounts of resistance during exercise.
A link arm 74 is coupled to lead screw 70 utilizing a threaded
coupler 76. Link arm 74 couples differential resistance arm 61 to
compression spring 78. As a result, when differential resistance
arm 61 is moved, link arm 74 also exerts a force on compression
spring 78. When the force exerted by differential resistance arm 61
and link arm 74 on compression spring 78 is sufficient, compression
spring 78 is compressed.
[0052] Lead screw threadably interacts with threaded coupler 76
such that rotation of lead screw 70 changes the position of
threaded coupler 76 relative to differential contact surface 63.
Lead screw motor 72 causes rotation of lead screw 70 in a first
direction to move threaded coupler 76 in a first direction to
increase the resistance experienced by the user. Lead screw motor
also causes rotation of lead screw 70 in the opposite direction to
decrease the resistance experienced by the user. The position of
threaded coupler 76 relative differential resistance arm 61 changes
the mechanical advantage or disadvantage provided by differential
resistance arm 61. When threaded coupler 76 is positioned closer to
the free end of differential resistance arm 61 there is less
mechanical advantage and thus a greater amount of resistance
experienced by the user than when threaded coupler 76 is positioned
closer to the pivoting end of differential resistance arm 61.
[0053] A lead screw pivot 73 is also shown. Lead screw pivot 73
allows the free end of lead screw 70 to pivot relative to the pivot
point. Lead screw pivot 73 facilities the continued contact between
threaded coupler 76 and differential contact surface 63. The curved
configuration of differential contact surface and the movement of
the free end of lead screw 70 maintain contact between threaded
coupler and differential contact surface even though link arm 74
has a fixed length.
[0054] Compression spring 78 is coupled to a compression spring
securement frame member 80. Compression spring securement frame
member 80 provides solid and reliable securement for mounting
compression spring 78. Compression spring securement frame member
80 includes a guide slot 82. Guide slot 82 maintains a smooth and
linear compression of compression spring 78. Linear compression of
compression spring 78 ensures smooth and reliable operation of
compression spring 78 during the life of exercise device 10.
[0055] Compression spring 78 includes a spring portion 84 and a
compression arm 86. In the illustrated embodiment, spring portion
84 fixed and is positioned above compression arm 86 which is
movable relative to spring portion 84. Compression arm 86 is
compressed inside of spring portion 84 during operation.
Compression arm 86 is secured to compression spring securement
frame member 80 at slidable coupling 88. Spring portion 84 is
secured to compression spring securement frame member 80 at fixed
coupling 90. Slidable coupling 88 corresponds with guide slot 82.
As a result, when the free end of differential resistance arm 61
rotates, force is exerted on link arm 74. Forces exerted on link
arm 74 are relayed to compression spring 78 resulting in movement
of compression arm 86 relative to spring portion 84. As the
slidable coupling 88 begins to move, guide slot 82 ensures that
movement of compression arm 86 in a substantially smooth and linear
manner.
[0056] As will be appreciated by those skilled in the art, a
variety of types and configurations of compression springs and
resistance mechanisms can be utilized without departing from the
scope and spirit of the present invention. For example, the spring
portion can be positioned at the lower end of the compression
spring and the compression arm can be positioned above the spring
portion. In another embodiment, one or both of the couplings
associated with the spring portion and the compression arm are
pivotal. In another embodiment, the spring portion moves while the
compression arm remains fixed.
[0057] In the illustrated embodiment, a repetition counter 92 is
provided in connection with resistance assembly 12. Repetition
counter 92 senses and provides an indication of the number
repetitions that have been conducted by a user. Repetition counter
92 allows the user interface 17 (see FIG. 1) to indicate to the
user the number of sets and repetitions that have been conducted as
part of an exercise routine. Repetition counter 92 includes a
spring and ribbon type assembly which provides an indication of
directional change which is configured to both identify smaller
stroke length type repetitions and longer stroke length type
repetitions. A complete description of repetition counter of the
illustrated embodiment is disclosed in U.S. patent application No.
10/916,687 filed on Aug. 11, 2004 and entitled "Repetition Sensor
in Exercise Equipment", the entire description of which is
incorporated herein by reference.
[0058] FIG. 3 is a perspective view of resistance assembly 12
according to one embodiment of the present invention. In the
illustrated embodiment, the positioning of compression spring 78
relative to compression spring securement frame member 80 is more
clearly illustrated. As previously discussed, compression spring 78
is secured to compression spring securement frame member at fixed
coupling 90 and slidable coupling 88. At fixed coupling 90,
compression spring 78 is directly secured to compression spring
securement frame member 80 utilizing a known securement apparatus.
At slidable coupling 88, compression spring 78 is indirectly
secured to compression securement 80 by being coupled to guide 100.
Guide 100 is positioned primarily inside the channel created by the
configuration of compression spring securement frame member 80. A
hook extension is shown protruding axially from slot 99. The
extension portion of guide 100 protruding from slot 99 is
configured to engage an ancillary compression springs 93a-b
depicted in FIG. 2. A securement flange 95 is positioned toward the
top of compression securement spring frame member 80. Securement
flange 95 is configured to accommodate a pin configured to secure
ancillary compression springs 93a-b as depicted in FIG. 2.
[0059] FIG. 3 also illustrates transition pulleys 68a, b, c, d.
Transition pulleys 68a, b, c, d are configured to facilitate the
transition of the cable from exercise device 10 to the resistance
assembly 12. In the illustrated embodiment, a single cable (primary
cable 30a depicted in FIG. 1) is threaded from a right side of the
exercise apparatus through the resistance assembly 12 to a left
side of the exercise apparatus. By utilizing a single cable, the
mechanical and stroke length benefits provided by the juxtaposition
of pulleys 64a-n and 66a-n are realized on both the right and left
sides of the exercise device.
[0060] In one embodiment, pulleys 68a-d allow the cable to be
threaded through the resistance assembly 12 to other portions of
the exercise device 10 so as to be grasped by the user. Pulley 68a
is positioned on a support member toward the top of resistance
assembly 12. Pulley 68a-b are positioned on a brace member 94 on
the side of resistance assembly 12. Pulleys 68b-c are positioned at
an angle facilitating the smooth transition to the left and right
sides of the exercise device. Pulley 68d is positioned on the
bottom of the resistance assembly frame 62. The cable is threaded
from pulley 68a to pulleys 68a-n. As previously discussed, the
cable is then threaded between pulleys 68a-n and 64a-n providing a
compound pulley effect. From the last of pulleys 64a-n the cable is
again threaded back to the last of pulleys 66a-n. From pulleys
66a-n the cable is then threaded to pulley 68d. From pulley 68d the
cable extends to pulley 68c. From pulley 68c the cable is threaded
to the left side of the exercise apparatus. The combination and
juxtaposition of pulleys 64a-n, 66a-n, and 68a-d conveys resistance
from resistance assembly 12 to the user in an effective and
reliable manner.
[0061] FIG. 4 is cutaway side view of resistance assembly 12
according to one embodiment of the present invention. In the
illustrated embodiment, the threaded coupler 76 is positioned at
midpoint on lead screw 70. The angle of lead screw 70 is affected
by the position of threaded coupler 76 along the length of lead
screw 70. Additionally, the angle of link arm 74 is affected by the
position of threaded coupler 76 along the length of lead screw
70.
[0062] Link arm 74 is linked to a guide 100 at coupling 104. Guide
100 provides connection between link arm 74 and compression spring
78. In other words, guide 100 conveys resistance provided from
compression spring 78 to link arm 74 and thus to differential
resistance arm 61. Guide 100 includes upper guide wheel 102a and
lower guide wheel 102b. Upper and lower guide wheels 102a-b are
positioned internal to the channel created by the configuration of
compression spring securement frame member 80. Upper and lower
guide wheels 102a-b roll relative to compression spring securement
frame member 80 providing smooth and reliable movement of guide
100. Because guide 100 is coupled to link arm 74 and compression
spring 78, upper and lower guide wheels 102a-b also facilitate the
smooth and reliable movement of link arm 74 and compression of
compression spring 78. As previously discussed, at the lower end of
guide 100 a hook member of guide 100 extends outward from
compression spring securement frame member 80 so as to be
optionally connected to ancillary compression springs 93a-b shown
in FIG. 2.
[0063] FIG. 5A is a side view of resistance assembly 12 depicting
differential resistance arm 61 in a relaxed position according to
one embodiment of the present invention. In the illustrated
embodiment, threaded coupler 76 is positioned at the midpoint on
lead screw 70. As previously discussed, the position of threaded
coupler 76 along the length of lead screw 70 affects the angle of
link arm 74 and the amount of resistance experienced by the user
during exercise. The system can increase or decrease the amount of
resistance experienced by the user during exercise by rotating lead
screw to change the position of threaded coupler 76 along the
length of lead screw 70. When in the relaxed position, differential
resistance arm 61 is positioned such that the free end of
differential resistance arm 61 is positioned at its displacement
closest to the bottom of resistance assembly frame 62. When
differential resistance arm 61 is in a relaxed position, slidable
coupling 88 and the bottom end compression spring 78 are positioned
at the bottom of guide slot 82. Compression spring 78 is fully
extended as no compressive forces are being exerted on compression
spring 78.
[0064] In the illustrated embodiment, contact sensors 96a-b are
depicted. Contact sensors 86a-b sense when threaded coupler 76 is
at either the minimum or maximum resistance positions. When thread
coupler contacts sensor 96a, the system is notified that threaded
coupler 76 is at the minimum resistance position and that no
further rotation of lead screw 70 toward the minimum resistance
position is needed. When threaded coupler contacts sensor 96a the
system is notified that threaded coupler is at the maximum
resistance position and no additional rotation of lead screw 70 in
the maximum resistance direction is needed. In the illustrated
embodiment, there is also shown a resistant member arm pivot
98.
[0065] FIG. 5B is a side view of resistance assembly 12
illustrating differential resistance arm 61 in an actuated
position. In the illustrated embodiment, differential resistance
arm 61 is being pivoted about resistance arm pivot 98. Pivoting of
differential resistance arm 61 about resistance arm pivot 98
results when a user exerts forces on the end of the primary cable.
As the user exerts forces on the end of the primary cable, pulleys
64a-n are drawn in the direction of pulleys 66a-n. As pulleys 64a-n
are drawn toward pulleys 66a-n, contact between differential
contact surface 63 and threaded coupler 76 pushes link arm 74 in an
upward direction.
[0066] As depicted in FIG. 4, the upper end of link arm 74 is
connected to guide 100. As a result, as link arm 74 moves in an
upward direction, guide 100 is also pushed in an upward direction.
Because compression spring 78 is coupled to guide 100 at slidable
coupling 88, movement of guide 100 results in movement of slidable
coupling 88 in an upward direction. Movement of slidable coupling
88 forces compression arm inside spring portion 84. Movement of
compression arm 86 into spring portion 84 provides the resistance
that is utilized by the user during exercise.
[0067] In the illustrated embodiment, the positioning of the
threaded coupler 76 along the length of lead screw 70 also dictates
the amount of displacement of slidable coupling 88 during actuation
of differential resistance arm 61. For example, where the threaded
coupler 76 is positioned at midpoint along the lead screw, the
slidable coupling 88 is not fully compressed when the differential
resistance arm 61 is fully actuated. Subsequent to full actuation
of differential resistance arm 61, when a user begins to relax the
tension on the primary cable, the pressure in compression spring 78
begins to push the compression arm 86 out of spring portion 84. As
compression arm 86 begins to be pushed out of spring portion 84,
slidable coupling 88 begins to be pushed in a downward direction.
As slidable coupling 88 moves in a downward direction guide 100 is
also moved in a downward direction. This allows link arm 74 and
differential resistance arm to move downward to the relaxed
position depicted in FIG. 5A.
[0068] FIG. 6A is a side view of resistance assembly 12 depicting
differential resistance arm 61 in a relaxed state. In the
illustrated embodiment, threaded coupler 76 is positioned at a
minimum resistance position adjacent contact sensor 96b. In other
words, when threaded coupler 76 is positioned adjacent resistance
arm pivot member 98, differential resistance arm 61 provides a
maximum amount of mechanical advantage. As a result, a minimum
amount of tension on the cable is sufficient to cause compression
of compression spring 78.
[0069] As can be seen in the illustrated embodiment, when threaded
coupler 76 is positioned at its displacement closest to resistance
member arm pivot 98, link arm 74 is positioned in a substantially
vertical orientation. Due to the positioning of link arm 74
relative to compression spring securement member 80, much of link
arm 74 is obscured by compression spring securement member 80. It
can also be seen that when threaded coupler 76 is positioned at a
displacement closest to resistance member arm pivot 98, lead screw
70 is pivoted about lead screw motor pivot 73 such that most or all
of lead screw 70 is exposed above the profile of differential
contact surface 63. As previously discussed, the curvilinear nature
of differential contact surface 63 is configured to maintain
contact between threaded coupler 76 and differential contact
surface 63 notwithstanding the position of threaded coupler 76
along the length of lead screw 70.
[0070] FIG. 6B illustrates differential resistance arm 61 in an
actuated configuration. In the illustrated embodiment, threaded
coupler 76 is positioned at a displacement closest to resistance
member arm pivot 98 as shown in FIG. 6A. When differential
resistance arm 61 is actuated while threaded coupler 76 is at its
displacement closest to the resistance member arm pivot 98, a large
amount of displacement of differential resistance arm 61 results in
a relatively small amount of depression of slidable coupling 88 and
thus compression arm 86. The small amount of displacement is in
large part due to the fact that when the free end of differential
resistance arm 61 moves a large amount, the portion of differential
resistance arm 61 adjacent resistance member pivot moves a
relatively small distance. As a result of the relatively small
amount of movement of threaded coupler 76 and thus link arm 74,
guide 100 and slidable coupling 88 also move a relatively small
amount. In other words, for every increment of movement of the
cable, a very small amount of compression of compression spring 78
results. In one embodiment, a return spring is connected to either
guide 100 or differential resistance arm 61 to facilitate return of
differential resistance arm 61 to the relaxed position. The return
spring can be helpful when the large amount of mechanical advantage
resulting from the position of threaded coupler 76 is insufficient
to facilitate the return the differential resistance arm 61 to the
relaxed position.
[0071] FIG. 7A is side view of resistance assembly 12 illustrating
differential resistance arm 61 in which threaded coupler 76 is
positioned at maximum resistance position at a displacement closest
to the free end of differential resistance arm 61. In the
illustrated embodiment, threaded coupler 76 has contact sensor 96a.
Contact sensor 96a indicates that threaded coupler is at the
maximum resistance position and that rotation of lead screw 70
should be stopped in the direction of increasing resistance. In the
illustrated embodiment, the maximum resistance position of threaded
coupler 76 positions link arm 74 at a fairly sharp angle relative
to compression spring 78. Additionally the position of threaded
coupler 76 along the length of differential resistance arm 61
results in little or no mechanical advantage in compressing
compression spring 78.
[0072] The positioning of threaded coupler 76 results in a
relatively sharp angle of lead screw 70 relative to differential
contact surface 63. As a result, approximately half of lead screw
70 is obscured below the profile of differential contact surface
63. As a user begins to exert a force on the free end of
differential resistance arm 61 to draw resistance arm pulleys 64a-n
towards frame pulleys 66a-n, the angle of link arm 74 and the
position of threaded coupler 76 along the length of differential
resistance arm both increase the degree of resistance experienced
by the user while exerting a force on the cable. In one embodiment,
the amount of resistance experienced by the user when threaded
coupler 76 is positioned in the maximum resistance position is
approximately 220 pounds. When the threaded coupler is positioned
in a minimum resistance position as depicted in FIG. 5A the amount
of resistance experienced during exercise is 10 pounds or less.
[0073] FIG. 7B is a side view of resistance assembly 12 depicting
differential resistance arm 61 when threaded coupler 76 is
positioned at the maximum resistance position as shown in FIG. 7A.
In the illustrated embodiment, resistance arm pulleys 64a-n have
been drawn adjacent frame pulleys 66a-n. Because threaded coupler
76 is positioned at its displacement furthest from resistance
member arm pivot 98, actuation of differential resistance arm 61
results in a relatively large amount of displacement of link arm
74. The relatively large amount of displacement of link arm 74
results in a large amount of displacement of both guide 100 and
slidable coupling 88. As a result compression arm 86 is drawn
nearly entirely inside of spring portion 84.
[0074] Threaded coupler 76 is in contact with differential
resistance arm 61 at a displacement furthest from resistance member
arm pivot 98. As a result relatively little mechanical advantage
has been provided by differential resistance arm 61. The relatively
small amount of mechanical advantage provided by differential
resistance arm 61 and the angle of link arm 74 relative to guide
100 and compression spring 78 results in a large amount of
resistance being experienced by the user. As previously discussed,
to move threaded coupler 76 from the minimum resistance position to
the maximum resistance position, the lead screw motor 78 is
actuated to rotate lead screw 70. The threaded interaction between
lead screw 70 and threaded coupler 76 results in movement of the
position of threaded coupler as lead screw 70 is rotated. To
increase or decrease the amount of resistance during exercise, the
user utilizes user interface 17 depicted in FIG. 1 to select an
increase or decrease in the amount of resistance. The user
interface provided in connection with exercise device 10 can
include a variety of different types of functionality including
preprogrammed exercise routines.
[0075] As will be appreciated by those skilled in the art, a
variety of types and configurations of resistance assemblies can be
utilized without departing from the scope and spirit of the present
invention. For example, in one embodiment the positioning of the
differential resistance arm and the compressions springs is varied
from that which is depicted. In another embodiment, the link arm
and the compression spring are pivotal to allow for proper
operation of the differential resistance arm. In another
embodiment, the compression spring interacts directly with the
differential resistance arm to provide resistance for use in
exercise.
[0076] The present invention may be embodied in other specific
forms without departing from its spirit or essential
characteristics. The described embodiments are to be considered in
all respects only as illustrative and not restrictive. The scope of
the invention is, therefore, indicated by the appended claims
rather than by the foregoing description. All changes which come
within the meaning and range of equivalency of the claims are to be
embraced within their scope.
* * * * *