U.S. patent application number 11/071780 was filed with the patent office on 2005-07-07 for reorienting treadmill.
Invention is credited to Dalebout, William T., Watterson, Scott R..
Application Number | 20050148442 11/071780 |
Document ID | / |
Family ID | 34713293 |
Filed Date | 2005-07-07 |
United States Patent
Application |
20050148442 |
Kind Code |
A1 |
Watterson, Scott R. ; et
al. |
July 7, 2005 |
Reorienting treadmill
Abstract
The treadmill has a tread base that is rotatably attached to and
between a left upright and a right upright. The tread base is
rotatable between a first position for performing exercises and an
upright or storage position. A latching structure is provided to
latch the tread base to the support structure. The treadmill also
includes inclination structure for inclining the tread relative to
the support surface when in the first position. The treadmill also
includes rigid handles and one configuration movable handles. The
tread base also has a rigid undersurface or pan to fully enclose
the underside of the tread base. A lift assist gas cylinder is also
interconnected between the tread base and the feet attached to the
uprights.
Inventors: |
Watterson, Scott R.; (Logan,
UT) ; Dalebout, William T.; (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: |
34713293 |
Appl. No.: |
11/071780 |
Filed: |
March 3, 2005 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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11071780 |
Mar 3, 2005 |
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08942810 |
Oct 2, 1997 |
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08942810 |
Oct 2, 1997 |
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08593796 |
Jan 30, 1996 |
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5674453 |
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Current U.S.
Class: |
482/54 |
Current CPC
Class: |
A63B 22/0023 20130101;
A63B 2210/50 20130101 |
Class at
Publication: |
482/054 |
International
Class: |
A63B 022/02 |
Claims
What is claimed is:
1. A treadmill comprising: a support structure; a tread base
rotatably attached to the support structure such that the tread
base is selectively moveable between an operating position and a
storage position; and a gas spring connected between the support
structure and the tread base.
2. The treadmill of claim 1, wherein the tread base includes a
continuous belt rotationally coupled to the tread base and wherein
the treadmill further comprises a motor mechanically coupled to the
continuous belt for driving the continuous belt.
3. The treadmill of claim 2, wherein the tread base has a front end
and a rear end and wherein the tread base is rotatably attached to
the support at a point adjacent the front end of the tread
base.
4. The treadmill of claim 3, further comprising a flywheel
mechanically coupled to the motor.
5. A treadmill comprising: a support structure; a tread base
rotatably attached to the support structure such that the tread
base is selectively moveable between an operating position and a
storage position; and lift assist means, connected between the
support structure and the tread base, for assisting a user in
rotating the tread base between the operating position and the
storage position.
6. The treadmill of claim 5, wherein the tread base includes a
continuous belt rotationally coupled to the tread base and wherein
the treadmill further comprises a motor mechanically coupled to the
continuous belt for driving the continuous belt.
7. The treadmill of claim 6, wherein the tread base has a front end
and a rear end and wherein the tread base is rotatably attached to
the support structure at a point adjacent the front end of the
tread base.
8. The treadmill of claim 7, further comprising a flywheel
mechanically coupled to the motor.
9. The treadmill of claim 5, wherein the lift assist means
comprises a gas spring.
10. The treadmill of claim 5, wherein the lift assist means
comprises a pneumatic cylinder.
11. A treadmill comprising: a tread base rotatably attached to a
support; and a gas spring connected between the tread base and the
support for providing an upward force to assist a user in rotating
the tread base between an operating position and a storage
position.
12. The treadmill of claim 11, wherein the tread base includes a
continuous belt rotationally coupled to the tread base and wherein
the treadmill further comprises a motor mechanically coupled to the
continuous belt for driving the continuous belt.
13. The treadmill of claim 12, wherein the tread base has a front
end and a rear end and wherein the tread base is rotatably attached
to the support at a point adjacent the front end of the tread
base.
14. The treadmill of claim 13, further comprising a flywheel
mechanically coupled to the motor.
15. The treadmill of claim 11, further comprising a latch for
selectively securing the tread base to the support when the tread
base is placed in the storage position.
16. The treadmill of claim 11, further comprising inclination means
coupled to the tread base for selectively varying the inclination
of the tread base.
17. The treadmill of claim 16, wherein the inclination means
comprises feet rotatably coupled to a rear end of the tread base
for selectively varying the inclination of the tread base.
18. A treadmill comprising: a support structure; a tread base
rotatably attached to the support structure such that the tread
base is selectively moveable between an operating position and a
storage position; and a lift assist mechanism, connected between
the support structure and the tread base, for assisting a user in
rotating the tread base between the operating position and the
storage position.
19. The treadmill of claim 18, wherein the tread base includes a
continuous belt rotationally coupled to the tread base and wherein
the treadmill further comprises a motor mechanically coupled to the
continuous belt for driving the continuous belt.
20. The treadmill of claim 19, wherein the tread base has a front
end and a rear end and wherein the tread base is rotatably attached
to the support structure at a point adjacent the front end of the
tread base.
21. The treadmill of claim 20, further comprising a flywheel
mechanically coupled to the motor.
22. The treadmill of claim 18, wherein the lift assist mechanism
comprises a gas spring.
23. The treadmill of claim 18, wherein the lift assist mechanism
comprises a pneumatic cylinder.
24. A treadmill comprising: a support structure for positioning on
a support surface; a tread base comprising: i) a frame having a
front, a rear, a left side, and a right side; and ii) an endless
belt positioned between said left side and said right side, said
frame being connected to said support structure to be movable
between a first position in which said endless belt is positioned
for operation by a user positioned thereon and a second position in
which said rear of said frame is positioned toward said support
structure; and a lift assist mechanism interconnected between said
support structure and said tread base to urge said tread base from
said first position to said second position.
25. The treadmill of claim 24, wherein said support structure
further comprises: a base; and left and right upright supports
connected to said base; wherein said left side and said right side
of said treadbase frame is pivotally connected to said left and
right upright supports.
26. The treadmill of claim 25, wherein said left side and said
right side of said treadbase frame is pivotally connected to said
base.
27. The treadmill of claim 25, wherein said lift assist mechanism
comprises a gas spring having a first end and a second end, said
first end of said gas spring being connected to one of said rear,
said left side and said right side of said treadbase frame; said
second end of said gas spring being connected to one of said base,
said left upright support and said right upright support of said
support structure.
28. The treadmill of claim 25, wherein said lift assist mechanism
comprises a pneumatic cylinder having a first end and a second end,
said first end of said pneumatic cylinder being connected to one of
said rear, said left side and said right side of said treadbase
frame; said second end of said pneumatic cylinder being connected
to one of said base, said left upright support and said right
upright support of said support structure.
29. The treadmill of claim 24, further comprising an inclination
mechanism connected to said frame to vary the inclination of said
frame relative to said support surface.
30. The treadmill of claim 29, wherein said inclination mechanism
comprises a left foot pivotally secured to said left side proximate
said rear of said frame and a right foot pivotally secured to said
right side proximate said rear of said frame for positioning and
supporting said frame on said support surface in said first
position.
31. The treadmill of claim 30, wherein said inclination mechanism
is operable to move each of said left foot and said right foot
relative to said frame, said inclination mechanism including a
cross member interconnected between said left foot and said right
foot, an extension having a distal end and a proximal end, said
distal end being connected to said cross member and said proximal
end being oriented toward the front of said frame, and force means
interconnected between said proximal end of said extension and said
frame to apply a force to said extension to urge movement of said
left foot and said right foot to vary the inclination of said frame
relative to said support structure.
32. The treadmill of claim 31, wherein said force means comprises
any one of a spring, a gas spring, and a rack and pinion gear.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of U.S. patent
application Ser. No. 08/942,810, filed on Oct. 2, 1997, entitled
"Reorienting Treadmill", which is a Divisional of U.S. patent
application Ser. No. 08/593,796, filed on Jan. 30, 1996, and
entitled "Reorienting Treadmill", now U.S. Pat. No. 5,674,453, both
of which are incorporated herein by reference in their entireties.
No new matter is being introduced in this continuation
application.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] This invention relates to an exercise treadmill and more
specifically to a treadmill with a tread base that may be
reoriented from a first or exercise position to a second or upright
storage position.
[0004] 2. State of the Art
[0005] Typical treadmills include a continuous or endless belt
trained about a pair of laterally extending rollers mounted to and
between spaced apart longitudinally extending rigid treadmill frame
members. A deck is secured to and between the frame members or
rails; and the endless belt moves over and under the deck upon
rotation about the laterally extending rollers positioned at
opposite ends of the deck.
[0006] Non-motorized treadmills typically have a flywheel to store
energy from the user moving the tread. The flywheel delivers the
energy to the front roller to maintain even rotation or operation
of the tread particularly when the user is moving on the treadmill
in such a fashion that the user's feet simultaneously leave the
treadmill or substantially leave the treadmill, such as when
jogging or running.
[0007] In a typical motorized treadmill, an electric motor is
provided to supply rotational torque to the front roller to, in
turn, drive the endless belt. The motor is typically operated
through controls positioned on a control console operable by a user
positioned on the endless belt.
[0008] Many treadmills have an upright post or column with a
control console positioned at the front end of the treadmill to
contain controls or present information desirable or useful to the
user. For example, time, speed, pulse, calorie-burn and other
similar information may be presented in one or more different
combinations. Controls for speed, inclination, exercise program or
the like, may also be part of the control console. In other
circumstances, a tape player, disc player or similar device may be
mounted or attached to the upright post for operation by the user
during the exercise period.
SUMMARY OF THE INVENTION
[0009] A treadmill has a support structure configured to be
freestanding and to stably support the treadmill and more
specifically the tread base in multiple orientations. The support
structure has feet means for positioning on a support surface. The
support structure also has upright structure extending upwardly
from the feet means.
[0010] A tread base has a left side, a right side, a front and a
rear. An endless belt is positioned between the left side and the
right side. The tread base is connected to the support structure to
be reorientable between a first position in which the endless belt
is positioned for operation by a user positioned on the endless
belt and a second position in which the rear of the tread base is
positioned or moved toward the upright structure.
[0011] In a preferred arrangement the upright structure includes a
right upright member and a left upright member spaced from the
right upright member and in general alignment therewith. Preferably
the tread base has a front portion extending from the front end of
the tread base to a position about midway between the front end and
the rear end. The front portion of the tread base is rotatably
attached to the support structure to rotate about a base axis. The
tread base has mass and a center of gravity. Desirably the tread
base is formed with the mass distributed and configured to locate
the center of gravity above the base axis.
[0012] Preferably the treadmill base includes a front roller
connected between and to the left side and the right side of the
tread base. The endless belt is desirably trained around the front
roller; and torque means is desirably connected to the front roller
to supply rotational torque thereto. The torque means is preferably
positioned between the base axis and the front end of the tread
base.
[0013] In one preferred arrangement the torque means is an electric
motor. In another preferred arrangement the torque means is a
flywheel. In yet another configuration, the front roller rotates
around the base axis.
[0014] In a preferred assembly, the feet means of the support
structure includes a left foot mechanically associated with the
left upright member and a right foot mechanically associated with
the right upright member. The left foot and the right foot are each
sized to define a foot print to stably support the tread base when
the tread base is in the first position, when the tread base is in
the second position and when the tread base is moving between the
first position and the second position.
[0015] The left foot and the right foot are each desirably
elongated members spaced from each other and in general alignment.
A front cross support is interconnected between the left foot and
the right foot. A rear cross support is similarly interconnected to
and between the left foot and the right foot spaced from the front
cross support.
[0016] The support structure also includes a cross member extending
between and connected to the left upright member and the right
upright member, preferably proximate to the upper or distal ends of
the left upright member and the right upright member.
[0017] In a more preferred arrangement, the treadmill includes
latching means adapted to the tread base and the upright structure.
The latching means is operable to attach the tread base in the
second position to the upright structure. In an alternate
configuration, the treadmill includes a left rigid handle pivotally
connected to the left upright member. The left rigid handle
includes a portion positioned for grasping by a user positioned on
the endless belt with the tread base in the first position.
Similarly, the treadmill includes a right rigid handle pivotally
connected to the right upright member and configured with a portion
for grasping by a user positioned on the endless belt with the
tread base in the said first position.
[0018] In yet another configuration, a left non-movable rigid
handle is attached to the left upright to be graspable by a user on
the endless belt when the tread base is in the first position. The
treadmill also includes a right non-movable rigid handle attached
to the right upright to be grasped by a user positioned on the
endless belt when the tread base is in the first position. The
non-movable left and right rigid handles each preferably include a
first portion that extends from the left upright and the right
upright, respectively, toward the rear end of the tread base. The
left and right rigid non-movable handles also include a second
portion connected to the respective first portions to extend
downwardly toward the feet means. The left and right non-movable
handles also each have a third portion connected to the second
portion to extend toward the left upright member. The left
non-movable rigid handle and the right non-movable rigid handle
define a space thereinbetween. The space is over the part of the
front portion of the treadmill.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In the drawings which illustrate what is presently regarded
to be the best mode for carrying out the invention:
[0020] FIG. 1 is a perspective illustration of a reorienting
treadmill of the present invention with the tread base positioned
in a first position for a user to perform exercises;
[0021] FIG. 2 is a perspective illustration of a reorienting
treadmill of FIG. 1 with the tread base reoriented to a second or
storage position;
[0022] FIG. 3 is a partial, simplified plan view of a portion of a
alternate configuration of a reorienting treadmill of the present
invention;
[0023] FIG. 4 is a partial view of portions of the reorienting
treadmill of FIG. 1 and FIG. 2;
[0024] FIG. 5 is a partial perspective exploded view of an
inclination assembly for use with the treadmill of the present
invention to vary the inclination of the treadmill base relative to
the support surface;
[0025] FIG. 6 is a partial schematic side view of an inclination
assembly for use ng treadmill of the present invention;
[0026] FIG. 7 shows a portion of an inclination structure for use
with a reorienting treadmill of the present invention;
[0027] FIG. 8 is a partial perspective of a portion of a
reorienting treadmill including a latching structure associated
therewith;
[0028] FIG. 9 is a partial cross sectional view of a latching
structure of the type shown in FIG. 8;
[0029] FIG. 10 is a partial side view of a reorienting treadmill of
the present invention with the tread base oriented in a second or
stored position and with the treadmill shown in phantom oriented
for movement;
[0030] FIG. 11 is a perspective view of an alternate embodiment of
a reorienting treadmill of the present invention with movable
handles and with the tread base oriented in a first position to
receive a user for performing exercises;
[0031] FIG. 12 is a simplified partial side view of an alternate
reorienting treadmill of the present invention having lift assist
means and with a tread base in a first position;
[0032] FIG. 13 is a simplified partial side view of the reorienting
treadmill of FIG.12 with a tread base in a second or stored
position;
[0033] FIG. 14 is a simplified partial side view of an alternate
reorienting treadmill of the present invention having elevation
structure associated with the tread base in its first position;
[0034] FIG. 15 is a simplified side view of the alternate
reorienting treadmill of FIG. 14 with alternate elevation
structure; and
[0035] FIG. 16 is a simplified side view of portions of the
alternate elevation structure of FIG. 15.
DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENT
[0036] A reorienting treadmill 10 is shown in FIG. 1 to have a
tread base 12 which is movably connected to support structure 14.
The tread base 12 has a left side 16 and a right side 18. As can be
seen, the left side 16 and the right side 18 are spaced apart and
in general alignment. The tread base also has a front end member 20
and a rear end member 22. As here shown, the front end member 20
and the rear end member 22 are each cross members that form part of
the overall frame of the tread base 12. That is, the frame may be
said to include the front end member 20, the rear end member 22,
the left side 16 and the right side 18. The frame may also include
other structural members.
[0037] It should be noted that the front end member 20 and the rear
end member 22 denote specific structural members. However, in some
contexts the front end and rear end may refer to the region or area
proximate the front or the rear of the tread base 12.
[0038] The tread base 12 has an endless belt 24 positioned between
the left side 16 and the right side 18. The endless belt 24 or
tread is configured to receive a user thereon to perform exercises
such as running walking, jogging or the like. The user also may
perform stationary exercises such as bending, stretching or the
like while positioned on the endless belt 24. However, the machine
principally is intended for use in performing walking, running or
jogging exercise.
[0039] The tread base 12 as here shown in FIG. 1, has a left side
rail 26 positioned over the top of the left side and a right side
rail 28 positioned over the top of the right side 18. The left side
rail 26 and the right side rail 28 are configured and positioned to
support a user. That is, a user seeking to dismount from the moving
endless belt 24 or tread may simply place the user's left foot on
the left rail 26 and the user's right foot on the right rail 28 to
dismount or leave the moving surface to terminate the exercise
before terminating movement of the endless belt 24.
[0040] It can also been seen that the tread base 12 has a front
cover 30 positioned over structure such as pulley 144 associated
with the drive mechanism for driving the front roller 252 not
illustrated in FIG. 1, but illustrated and discussed more fully
hereinafter with respect to FIG. 4. The front cover 30 is also
provided for aesthetics and for safety to minimize the risk of
materials entering into the area thereunder and interfering with
operation of mechanism or otherwise becoming entangled
therewith.
[0041] The tread base 12 of FIG. 1, also includes an underside
rigid surface 32 or pan secured to the left side 16, the right side
18, the front end member 20 and the rear end member 22 as more
fully discussed hereinafter.
[0042] The tread base 12 also has rear feet means for positioning
and supporting the tread base on the support surface. The rear feet
means include specifically a left foot 160 (FIG. 4) and a right
foot 34 which is rotatably secured to the right side to rotate
about a pin 36. That is, the right foot 34 and the left foot 160
rotate about pin 36 and pin 161 (FIG. 4), to move toward and away
from the endless belt 24 to, in turn, vary the inclination of the
tread base 12 relative to the support surface.
[0043] The support structure 14 of the reorienting treadmill 10 of
FIG. 1 has feet means 38. The support structure 14 as shown is
configured to be free-standing and to stably support the treadmill
and more specifically the tread base 12 in the first orientation of
the tread base 12 as shown in FIG. 1 and in the second or storage
orientation of the tread base as shown in FIG. 2.
[0044] The feet means 38 includes a left foot 60 (FIG. 2) and a
right foot 40. The support structure 14 also includes an upright
structure 42 to extend upwardly from the feet means 38. More
specifically, the upright structure includes a left upright member
44 and a right upright member 46 spaced from the left upright
member and in general alignment therewith.
[0045] The tread base 12 has a front portion 48 that extends 49
from the front end member 20 to a position or point 50 about midway
between the front end member 20 and the rear end member 22. It may
be Iloted that the midway point 50 is here shown to be at a
distance halfway between the front end member 20 and the rear end
member 22. However, those skilled in art will recognize that the
actual midpoint or midway position 50 need only be approximate and
is here defined to indicate that the front portion 48 is
essentially that half of the tread base 12 which may be said to be
frontward or forward of a similar half portion which may be said to
be rearward.
[0046] The front portion 48 of the tread base 12 is rotatably
attached to the support structure 14 to rotate around a base axis
52. As shown in FIGS. 1 and 4, the tread base 12 rotates with or
around bolts or pins 54 and 56 which function as an axle and are
connected to the right upright 46 and the left upright 44. The pins
54 and 56 connect to pivoting straps 55 and 57 which are attached
to their respective right and left sides 18 and 16 to extend
upwardly therefrom. With the straps 55 and 57 extending upwardly,
the base axis 52 may be located above the tread base 12 when the
tread base is in the first position as shown in FIG. 1. The length
or height of the straps 55 and 57 and the orientation to extend
upwardly from the sides 16 and 18 or downwardly from the sides 16
and 18 may be selected to position the center of gravity of the
tread base 12 relative to the base axis 52. That is, the necessary
force or leverage to lift and move the tread base 12 from the first
position to the second position may be varied by varying the
distance between the center of gravity and the base axis 52 as
discussed more fully hereinafter.
[0047] In FIG. 1 the support structure 14 and more particularly the
feet means 38 is shown to include a forward cross member 58 which
is connected to the right foot 40 to extend to the left foot 60.
Similarly, the foot means 38 includes a rear cross support 62 that
extends between and is connected by nuts and bolts 61 and 63 to
brackets 65 and 67 to the right foot 40 and the left foot 60 spaced
rearward 62 from the front cross member 58 a distance 63 selected
to rigidly support the right foot 40 and left foot 60. The cross
members 58 and 62 also may be connected by welding, brazing or the
like as desired.
[0048] The right foot 40 and left foot 60 are each sized in length
and spaced apart a distance 67 to provide the support structure 14
with a footprint so that the support structure is freestanding and
also stably supports the tread deck 12 in the first position, in
the second position and in movement thereinbetween. The footprint
may be regarded as the perimeter of the geometric figure projected
on the support surface that is defined by left foot 60 and right
foot 40. The footprint could be in any desired geometric shape to
have a length 65 and width 67. The length 65 and width 67 are
selected so that the distance 69 between the vertical location of
the center of gravity 71 (projected onto the support surface) of
entire treadmill 10 is selected so that the force necessary to tip
the treadmill 10 is necessarily more or higher than that applied by
a nudge or accidental bump. That is, a rearward 62 force FI applied
at the rear end member 22 of the tread base 12 in the second
position would tend to tip the treadmill 10 rearwardly. A force
exerted forwardly would, of course, tend to tip the treadmill 10
forwardly. Thus, the feet 40 and 60 extend a similar distance 73
selected so that the tipping force F 1 necessary to cause rotation
or tip of the treadmill exceeds a nominal sum (e.g., 1 pound) and
indeed is at least a somewhat larger sum (e.g., 10 to 20 lbs.) and
even more preferably a significantly larger sum. The distance 73
preferably is selected so that tipping can be effected only by a
user deliberately seeking to rotate or tip the treadmill 110 in
normal use.
[0049] Similarly, the distance 67 of the treadmill 10 is selected
so that the distance 75 between the center of gravity 71 and the
feet 40 and 60 will resist accidental tipping by a bump or nudge.
That is, the treadmill 10 cannot be tipped over sideways except
upon application of a force F2 that exceeds a nominal sum (e.g., 1
pound) and is about the same as force F1.
[0050] It may also be seen that the right foot 40 has a right wheel
64 rotatably positioned at its forward end 68 to rotate about an
axle 66. At the forward end 68, the right foot 40 angles rearwardly
77 toward a lower edge 70 thereby exposing the wheel 64 to
facilitate rotation of the support structure 14 onto the wheel 64
for movement of the treadmill 10 on the support surface.
[0051] Similarly, the left foot 60 (FIG. 2) has a left wheel 72
positioned to rotate about an axle 74. The left wheel 72 is exposed
to facilitate rotation and movement inasmuch as the left foot 60 is
formed to have a front portion 76 that angulates rearward and
downward 74 towards the lower edge 76 of the left foot 60. The left
foot 60 and the right foot 40 are both made of a rectangular, (in
cross section) hollow tube to contain the wheels 72 and 64.
Therefore the support structure 14 can be tipped or rotated onto
the left wheel 72 and right wheel 64.
[0052] It may also been seen in FIG. 1 that the support structure
has associated therewith a pair of rigid non-movable handles. The
left rigid non-movable handle 80 includes a first portion 82 that
is connected to the left upright 44 near its upper or distal end
81. The first portion 82 extends rearwardly to a second portion 84
that extends downwardly towards the foot means 38. A third portion
86 is interconnected to the second portion to extend inwardly
toward the upright 44 and is here preferably shown to be rigidly
secured such as by welding 88 to the left upright 44.
[0053] The right rigid non-movable handle 90 is here shown to
include a first portion 92 that is connected at the upper end 91 of
the upright 46 to extend rearward from the right upright member 46.
A second portion 94 is shown connected to the first portion 92 to
extend downwardly toward the foot means 38. A third portion 96
extends from the second portion inwardly toward the right upright
member 46 and is here shown to be secured such as by welding 98 to
the right upright 46.
[0054] It can be seen that the pair of rigid non-movable handles 80
define a space 100 therein between. That space 100 may be said to
create a cage-like effect because the rigid handles 90 and 80
extend rearwardly (toward the rear end member 22) when the tread
deck 12 is oriented in the first position shown in FIG. 1. The
space 100 is here oriented over the forward part of the endless
belt 24. The length 83 of the upper portions 82 and 92 of the
handles 80 and 90 may be selected to increase or decrease the size
of the space 100 and more particularly the volume. Thus, a user
positioned at or proximate the mid point 50 on the endless belt 24
may perceive the handles 80 and 90 as near the user's hands for
easy grasping to maintain balance when on the endless belt 24 and
perceive the space 100 as a cage-like area toward which the user
may move; and in turn the user may feel more stable or secure.
[0055] In FIG. 1, it can also be seen that the exercise treadmill
10 of the present invention has a control console 102 which is
connected to a support bar 104 that is attached to and extends
between the left upright 44 and the right upright 46. The console
102 has operating controls such as actuator 106 to operate the
treadmill 10 and indication means which may be used by the operator
to determine various parameters associated with the exercise being
performed. The console 102 may also have a cup or glass holder 108
so that the user may position a liquid refreshment for use during
the course of performing exercise.
[0056] The treadmill of FIG. 1 also includes a latching structure
and more particularly a receiving mechanism 110, which is more
fully discussed hereinafter. It may also be seen in FIG. 1 that the
left rigid non-movable handle 80 is fastened to the left upright 44
at its upper end 81 by a mechanical clamping structure 368 to be
discussed more fully hereinafter. Similarly, the right rigid
non-movable handle 90 is similarly attached by a clamping structure
114 is more fully discussed hereinafter.
[0057] The control console 102 of FIG. 1 also has associated
therewith a safety lock or key mechanism 116 with a loop structure
118 associated therewith for attachment about the waist or to the
user. The safety lock or key structure 116 is configured so that if
a user moves toward the rear end member 22 on the endless belt 24,
a key (not shown) is removed from the control console thereby
interrupting the electrical power to the motor driving the endless
belt for a motorized treadmill.
[0058] Referring now to FIG. 2, the reorienting treadmill is shown
with the tread base 12 reoriented relative to the support structure
14 to the second position in which the rear end member 22 of the
tread base 12 is positioned towards the upright structure 42 of the
support structure 14. In this configuration, it can be seen that
the treadmill 10 is significantly more compact, occupying less
floor space of the associated support surface.
[0059] As can be better seen in FIG. 4, the tread base 12, the left
side 16 and the right side 18 are here formed to present relatively
flat mating surfaces. Similarly, the front end member 20 and rear
end member 22 each present a flat surface to receive a portion of
the perimeter 122 of the pan or rigid surface 32. That is, the flat
surface portion 124 of the left side, the flat surface portion 126
of the rear end member 22, the flat surface portion 128 of the
right side 18 and the flat surface portion 130 of the front end
member 20 are desirably formed to be in substantially the same
plane to present a substantially flat surface to mate and register
with the flat surface 132 formed along the perimeter 122 of the
rigid surface 32.
[0060] The rigid surface 32 is here shown to be unitarily formed of
a plastic-like material to present an essentially rigid underside
120. Although rigid, it may be made of material thin enough to be
flexible or to deflect without breaking. The rigid surface 32 here
has a recess 134 formed in it proximate the rear end 22 to provide
a convenient hand position for the user to move or reorient the
tread deck 12 from the first position or exercise position shown in
FIG. 1 to the second position or storage position shown in FIG.
2.
[0061] It may also be seen that rigid surface 32 has a housing
portion 136 formed proximate the front end member 20 to cover
operating structure such as the motor 138, the flywheel 140, and
the driving belt 148. The housing 136 also covers the electrical
motor controlling mechanism 150, as well as the mechanism necessary
to operate the inclination structure as more fully discussed
hereinafter.
[0062] In FIG. 2, the underside 120 of the tread base 12 is here
shown with the pan or rigid surface 32 in position. The tread base
12 without the pan or rigid surface 32 leaves operating structure
such as the motor 138, electrical components 150 and the
inclination system 152 exposed (FIG. 4). Aside from an undesirable
visual appearance, the exposed components can be hazardous
providing sharp edges, points and structure against which items or
things may bump or snag. Similarly, there is a risk of exposing
electrical components to moisture, as wel.about.as exposing the
user to an electrical shock hazard if the treadmill is
inadvertently not turned off.
[0063] It may also be noted that the rigid surface 32 may be formed
to cover only a portion of the exposed components or may be formed
into multiple removable sections, if desired, to facilitate
assembly or repair.
[0064] As better seen in FIG. 4, the flat surfaces 126, 128, 130
and 124 have a plurality of apertures 154 formed therein to receive
screws 156 to secure the rigid surface 32 or pan to form the
underside of the tread base 12.
[0065] As better seen in FIG. 2, the rigid surface 32 has an
aperture 158 formed therein for the left leg 160 to extend
therethrough. A similar aperture 162 is formed to pass the right
leg 34 therethrough. It may be noted that the right leg 34 has a
wheel 164 appended proximate its distal end 166. Similarly, the
left leg 160 has a wheel 168 appended proximate its distal end 170.
The wheels 164 and 168 are rotatably attached to facilitate
movement on a support surface when the tread deck 12 is positioned
in the first position. Other guides, skids or the like may be used
to facilitate movement of both the legs 134 and 160 on the support
surface.
[0066] Turning now to FIG. 3, an alternate configuration of a
reorienting treadmill is shown, which is similar to the reorienting
treadmill shown in FIGS. 1 and 2. As shown in FIG. 3, a reorienting
treadmill 200 has a right foot 204 and a left foot 202. It also has
a right upright 208 and a left upright 210 attached to and
extending upward from the right foot 204 and a left foot 202. A
tread base 216 has a front end 218 with a protective cap 220
positioned as shown. The tread base 216 has a left side 222 and a
right side 224 with an endless belt 226 positioned between to
receive a user comparable to the endless belt 24 in FIG. 1.
[0067] As here shown in FIG. 3, a front roller 228 is positioned to
extend between the left side 222 and the right side 224. The front
roller 228 has an axis 230 with an axle 232 extending therethrough
to rotate about axis 230. The front roller 228 extends into the
right upright 206 and the left upright 210 to function as a base
axis similar to base axis 52. It may be also noted that the right
foot 204 has a wheel 234 rotatably mounted by axle 236 within the
right foot 204. Similarly, the left foot 202 has a left wheel 238
rotatably positioned within the left foot 202 by an axle 240.
[0068] As earlier noted, FIG. 4 shows a portion of the treadmill 10
of FIGS. 1 and 2. The treadmill 10 of FIGS. 1 and 2 is preferably a
motor driven treadmill having a controller 150 interconnected by
conductors 250 to motor 138. The motor rotates to operate a pulley
146, as well as a flywheel 140. The pulley 146 drives a belt 148
which, in turn, drives a pulley 144 connected to the front or drive
pulley 252 about which the endless belt 256 is trained.
[0069] As can be seen in FIG. 4, the front roller or drive pulley
252 is connected to the right side 18 by a bushing 258. The pulley
252 is similarly connected to the left side 16 by a bushing
260.
[0070] As can be seen in FIG. 4, the motor 138 and the controller
150 are positioned between the front end member 20 and the rotation
or base axis 52 to, in turn, position their mass or weight and
control the location of the center of gravity. That is, the weight
of the motor and the electrical components 150 create a cantilever
effect because the mass thereof is displaced toward the front end
member 20 a distance 262 to act as a counter balance upon rotation
of the tread deck 12 from the first position shown in FIG. 1 to the
second position shown in FIG. 2, as well as here in FIG. 4.
[0071] As also seen in FIG. 4, a cross support 264 is
interconnected such as by welding between the left side 16 and the
right side 18 in order to receive the incline mechanism 152. That
is, an incline mechanism 152 shown here in FIG. 4, as well as in
the exploded view of FIG. 5, includes a motor 265 interconnected
through a reduction gear mechanism 266 and pinion 270 to a rack
268. Operation of motor 265 causes the pinion 270 to drive the rack
268 forward and rearward 272 to, in turn, drive an extension 274.
The rack 268 is connected to the extension 274 by a pin 276 or any
other acceptable mechanical means.
[0072] The motor 264 and the reduction gear 266 are connected by a
metal or rigid strap 278 to a bracket 280. The strap 278 has an
aperture formed therein to receive a pin 282. Spacer 284 maintains
the strap 278 in alignment. Thus, the motor 264 with reduction gear
266 is pivotally connected to the cross member 264. The motor 264
is electrically controlled via conductors 286 from the controller
150 which, in turn, receives control signals from the control panel
102.
[0073] The extension 274 is here rotatably connected by a pin 288
to a cantilever 290 that is secured such as by welding to a cross
member 292. The cross member 292 is connected to extend between and
to be secured such as by welding to the right foot 34 and the left
foot 160.
[0074] As better seen in FIG. 5, the rack 268 is connected by a pin
276 which is here secured by a threaded nut 294 or by a compression
nut (not here shown). Similarly, the extension 274 is rotatably
connected by pin 288 to the cantilever 290 by a pin 288 held in
place by a cotter pin 296.
[0075] As also seen FIG. 5, the right leg 34 has wheel 164 secured
thereto by a bolt 298 secured in place by nut 300. The left leg 166
has a left wheel 168 secured thereto by bolt 302 and nut 304.
[0076] An alternate configuration of an inclination system is shown
in FIG. 6. A leg 306 with a wheel 308 appended at its distal end
310 is rotatably secured to a side 312 of a tread base to rotate
about an axle 314. A cantilever 320 is secured such as by welding
to the cross member 318. An extension 322 is rotatably attached to
the cantilever to rotate about a bolt or pin 324.
[0077] The extension 322 is connected at its proximal end 325 by a
pin or nut and bolt 326 to a pneumatic spring 328. The pneumatic
spring 328 contains gas under pressure, a chamber and a movable
piston.
[0078] The pneumatic spring 328 is operable by operation means
which here includes an actuation means. More specifically, the
operation means includes a cable 330 within a sheath 332. The cable
330 is connected to actuation means such as actuator 333 for
operation by a user positioned on the endless belt of the tread
deck when the tread deck is positioned in the first position for
use in performing exercises. Movement of the actuator 333 causes
the cable to move, in turn, operating the lever 334 to contact a
pin 336 associated with the pneumatic cylinder 328. Compression of
the pin 336 operates the cylinder to cause the piston rod 338 to
extend or retract to thereby move rearward 340 or forward thereby
causing the cantilever 320 to rotate clockwise 342 and, in turn,
cause the cross member 318 to rotate 319 clockwise (increase
inclination) or counter clockwise (to decrease inclination) as here
shown in FIG. 6. Rotation of the shaft 318 clockwise 342 causes the
foot 306 to rotate relative to the side 312 and, in turn, the
endless belt to in turn vary the inclination of the side 312 and
the endless belt relative to the support surface.
[0079] In order to increase the elevation, the user may move his
weight rearward on the endless belt. That is, the user may move
(such as in FIG. 1) from the forward portion of the tread base
towards the rear portion of the tread base to, in turn, vary the
lever arm and increase the force downward on the foot 306 to, in
turn, urge the shaft 322 inward or outward and, in turn, cause the
inclination to increase or decrease. The force of the user moving
rearward on the front deck is sufficient to overcome and exceed the
force being exerted by the pneumatic cylinder 328. It can be seen
that the pneumatic cylinder 328 is secured to a bracket 345 that is
rotatably attached by a pin 344 to a cross member 346 which is
secured to and in between the opposite sides of a tread base (not
here shown) such as side 312.
[0080] A reference to FIG. 7, instead of a pneumatic cylinder, a
coil spring 350 is positioned within a cylindrical housing 352
shown in cutaway. The cylindrical housing 352 is rotatably attached
to rotate about a pin 354 at one end. The cylindrical housing 352
also has an extension 356 with an aperture 358 for rotatable
connection to an extension such as extension 324.
[0081] In operation, the spring mechanism of FIG. 7 may be used to
vary the inclination of the endless belt of the tread base by the
user varying the rotation of associated feet, such as foot 306. The
foot may be pinned by positioning a pin or bolt through an aperture
passing through one or both sides of the tread base, such as side
312, and one of a plurality of apertures formed in the foot such as
foot 306. The user may use his hand or his foot to apply downward
pressure to the tread base in order to vary the inclination to
overcome the force of the spring 350.
[0082] Turning now to FIG. 8, the latching mechanism 110 is here
shown in an exploded view in association with the left upright
member 44 of the support structure 42. As can be seen in FIG. 8,
the upward or distal end 360 of the upright 44 reveals that the
upright 44 is, in fact, a hollow rectangular channel. One surface
362 of the upright 44 is formed with an arcuate recess 364 formed
to receive the circular in cross section left non-movable rigid
handle 80 and more particularly the first portion 82 of the left
non-movable handle. The inner end 366 of the first portion 82 is
positioned within the hollow portion of the upright 44 as shown. A
top clamp 368 is sized and configured to snugly fit over the distal
end 360 of the upright 44. The top clamp 368 has apertures 370
formed in one side 372. Similar apertures 374 are formed in the
opposite side 376 (FIG. 9). Associated screws 378 and 380 pass
through the apertures 370 and 374 to register with corresponding
apertures formed in the upright 44 to secure the top clamp and the
inner end 366 thereto.
[0083] As can be seen, the clamping structure 368 has a
semi-circular portion 384 formed to register with the first portion
82 of the left rigid handle structure to snugly hold the first
portion 82 of the left rigid handle structure 80 in place and to
resist or inhibit outward 386 movement of the first portion 82 of
the left rigid handle structure.
[0084] In FIG. 8, it can also be seen that the top clamp 368
securely receives the support bar 104 into an appropriately sited
aperture 388. The cross member 104 is sized in cross section to
snugly and slidably insert into the aperture 388. A base 390 is
shown secured or fastened to the cross member 104. The base 390 is
fastened by either welding, gluing, brazing or similar means as
desired. The control console 102 is fastened to the base 390.
[0085] As hereinbefore discussed, the treadmill 10 of the present
invention may include latching means adapted to the tread base 12
and to the upright structure 42. The latching means is operable for
releasably attaching the tread base 12 in the second position to
the upright structure 42. The latching means includes a receiving
mechanism 391 which is configured to receive a latch member 392
such as latch bar 393 (FIG. 4). The latch member 392 is configured
to removably connect to the receiving mechanism 391. As here shown,
the receiving mechanism 391 is attached to the top clamp 368 which
functions as a housing. The top clamp 368 is positioned at the
distal end 360 of the left upright 44.
[0086] The latch member 392 is shown in FIG. 4 to be a
cylindrically shaped bar 393 that extends outwardly and normally
from the left side 16. As the tread base 12 is rotated upwardly
from the first position towards the second or storage position, the
latch member 392 moves inwardly 394 towards the cam surface 396 of
lever member 398. As here seen, the lever member 398 is rotatably
attached to the top clamp 368 within a housing 399 to rotate about
a pin 400 that functions like an axle. The lever member 398 rotates
between a first position, as shown in FIG. 9, and a second position
in which the lever member 398 is rotated counterclockwise 402. That
is, the latch member 392 is urged against the cam surface 396
thereby generating a force to urge the cam end 404 of the lever
member 398 downwardly against a resistance. That resistance is here
provided by a spring means. The spring means may be any form of
acceptable spring, including a coil spring, a leaf spring or even a
clock spring associated with the pin 400. However, as illustrated
in FIG. 9, the spring as here shown is a block of an elastically
deformable polyurethane sponge 406 or any other rubber-like or
elastically compressible substance. In other words, any acceptable
spring may be used to urge the lever member 398 from a displaced or
second position to the at rest or first position as shown in FIG.
9.
[0087] The lever member 398 has a lower surface 408 configured to
act against the sponge 406 to compress it upon counterclockwise
rotation 402. Counterclockwise rotation 402 can also be affected by
grasping the handle means 410 formed at a distal end 412. The
handle means is formed by shaping the distal end 412 to provide a
space 414 between the distal end 412 and the upper surface 416 of
the top clamp 368 so the user may place one's finger about the
distal end 412 and more particular, about the handle. 410 in order
to urge it in a counterclockwise direction 402 out of the housing
399. Therefore, the lever member 398 may be manually rotated so
that the latch member 392 may be moved from the receiving portion
418. As here seen, the receiving portion 418 is a cylindrically
shaped recess sized and shaped to receive the cylindrically shaped
latch member 393.
[0088] In use, the tread base 12 may be moved from the first
position as shown in FIG. 1 to the second position or storage
position in FIG. 2. In moving from the first position to the second
position, the latch member 393 is urged against the cam surface 396
as hereinbefore stated. The user may grasp the left rigid handle
structure 80, the right rigid handle structure 90, or both, while
pushing on the rear end 22 or the rigid surface 32 to urge the
tread base 12 and, in turn, the latch member 392 into the receiving
portion 418. Upon entry of the latch member 392 into the receiving
portion 418, the sponge means 406 may operate to urge the lever
member 398 from a displaced position (not shown) to the first
position as shown in FIG. 9.
[0089] Those skilled in the art may recognize that other forms and
shapes of a receiving portion 418, as well as a latch member 392
may be used in order to facilitate an automatic latching
arrangement of the type herein described. Similarly, the lever
member 398 may be configured in a variety of shapes in order to
permit displacement by a latch member on a cam surface following
which the latch member enters a space or area provided to inhibit
movement of the latch member from that space.
[0090] It may also be recognized that the lever member 398 may be
positioned either on the distal end 360 of the left upright 44 or
similarly on the distal end 91 of the right upright 46. Similarly,
the lever 398 with a housing may be positioned on the tread base 12
to intersect with a latch member associated with the left upright
44 or right upright 46, as desired.
[0091] Turning now to FIG. 10, a simplified representation of a
reorienting treadmill 420 is shown similar to the treadmill 10
shown in FIG. 1. The treadmill 420 is shown from the side view with
a right upright 422 connected to a right foot 424 at an angle 426
here shown to be about 15.degree.. The angle 426 may be from about
zero to about 25.degree.. The angle 426 is selected in order to
position the center of gravity 446 of tread base 434, as well as
the center of gravity of the overall treadmill 458, as more fully
discussed hereinafter.
[0092] As can be seen in FIG. 10, the illustrated treadmill has a
control panel 428 connected to a cross support 430 which extends
between the right upright 422 and the left upright (not shown). The
treadmill 420 also has a right rigid handle structure 432 connected
to the right upright 422. It also similarly has a left rigid handle
structure connected to the left upright (not here shown). As here
shown, the tread base 434 has a rear end 436 which extends upwardly
as shown when the tread base 434 is positioned in the second or
storage position as shown in FIG. 10.
[0093] The tread base 436 is rotatably connected to rotate about a
base axis 438. The center of gravity 440 of the tread base 434 is
positioned to be spaced upwardly 444 from the base axis 438. That
is, from FIG. 4 it can be seen that the tread base 12 (FIG. 1) and
similarly the tread base 434 have mass. Various components such as
the motor 138 and electronics 150 (FIG. 4) are positioned so that
the center of gravity 440 of the tread base 434 is above base axis
or axis of rotation 438. Thus, upon movement of the tread base 434
from its first position to its stored or second position as shown
in FIG. 10, the center of gravity 440 passes through vertical
alignment 446 with the axis of rotation. The tread base 434 is
rotated until it is displaced clockwise past the vertical 446 a
distance 448 selected to stably retain the tread base 434 in the
second position with or without a latching means as hereinbefore
discussed. That is, the location of the center of gravity 440 of
the tread base 434 clockwise past the vertical 446 creates a lever
arm to hold the tread base 434 in the second or stored position as
shown.
[0094] As hereinbefore stated, the center of gravity 440 is
selected to be displaced above the axis of rotation 438 at a
preselected distance 444. The distance 444 is selected so that the
weight or mass of the tread base 434 when acting downwardly at the
center of gravity 440 is displaced toward the axis of rotation 438
to minimize the amount of upward or lifting force needed at the
rear end 436 to lift the tread base 434 and move it from the first
position toward and into the second position. The location of the
center of gravity 440 may vary based on the size, weight,
construction and shape of each individual model of treadmill.
However, the center of gravity 440 and more particularly the
location of the center of gravity 440 is selected so that the total
amount of lifting force necessary to lift the rear end 436 when the
tread base 434 is in the first position is such that a normal user
may be able to easily lift and rotate the tread base from the first
position to the second position.
[0095] It may also be seen in FIG. 10, that the foot 424 has an
angulated forward surface 450. The wheel 452 positioned in the
front or forward end 454 of the right foot 424 is positioned to
rotate about an axle 456. The wheel 452 is positioned so that it
does not contact the support surface until the upright or support
structure 422 is rotated or displaced from a first or standing
position to a displaced position here shown phantom as 420 with the
upright identified as 422.
[0096] It may be noted that in the standing position, the center of
gravity 458 of the entire treadmill 420 is determined by the weight
and mass of all of the components of the treadmill 420 and may be
the same as or displaced from the center of gravity 440 of the
tread base 434. The center of gravity 458 of the entire treadmill
420 is desirably positioned at a height or distance 460 which may
be above or below the center of rotation 438 but nonetheless close
to the center of rotation 438. However, it must be placed above the
foot 424 in order to facilitate rotation of the treadmill 420 from
the configuration and position shown in solid in FIG. 10 to that
shown in phantom in FIG. 10.
[0097] Desirably, the center of gravity 458 is rotatable to a
position 458' to be generally positioned over the axle 456 of the
wheel 452 to minimize the downward force or the lifting force
necessary to be exerted by the user when holding the treadmill 420
in the position shown in phantom in FIG. 10. Of course the position
shown in phantom in FIG. 10 is the position for moving or pushing
the treadmill 420 about the support surface from one location to
another.
[0098] The treadmill of FIG. 10 is formed to have a left handle and
a right handle available for grasping by the user to facilitate
holding and moving the treadmill 420 when in the position shown in
phantom in FIG. 10. The left handle and the right handle may be any
structural component readily available for grasping by the user,
while the user is moving the treadmill 420 when the treadmill 420
is in the orientation shown in phantom in FIG. 10. More
particularly, the rigid handle structure 432 on both the left side
and the right side may be grasped by the user potentially along the
first portion such as the first portion 92 and 82 of the rigid
handles shown in FIG. 2 and in FIG. 1. Similarly, the user may be
able to grasp and hold a portion of the support bar 430 in order to
hold on to and urge or move the treadmill 420 when supported on the
right wheel 452, as well as the corresponding left wheel (not here
shown). Also, a portion of the top clamp 368 as well as the bracket
114 shown in FIG. 4, extends outwardly or over the respective
distal ends 81 and 91 of the upright supports 44 and 46. That is,
the clamp 460 shown in FIG. 10 and the clamp on the left side (not
shown) may be grasped by the user to support and hold the treadmill
420 for movement about the support surface while supported by the
wheel 452 on the right side, as well as a wheel similarly
positioned on the left side.
[0099] Turning now to FIG. 11, an alternate configuration of the
treadmill 470 has a tread base 472 comparable to tread base 12 in
FIGS. 1 and 2. Similarly, it has support structure 474 including a
left upright 476 and a right upright 478. It also has left rigid
handle structure 480 and right rigid handle structure 482. As also
shown, the treadmill 470 has a movable left handle 484 which is
rotatably attached to the left upright 476 with a hand-operated
knob 478 useful to tighten or secure the handle 485 and increase
resistance or decrease resistance to rotation. As can be seen, the
handle 484 has a gripping portion 486 configured for grasping by a
user. A right handle 490 is here shown to be pivotally attached at
an axis 488 to rotate thereabout. The right handle 490 also has a
grip portion 492 positioned for grasping or movement by a user in a
back and forth 480 or pivotal movement when the user is positioned
on the endless belt 494.
[0100] Returning now to FIG. 4, it may also noted that the tread
base 12 has a deck 500 which extends between and is connected to
the left side 16 and the right side 18. The tread deck 500 may be
formed of any acceptable rigid material which may be acceptable
plywood materials with a wax or slippery upper surface over which
the endless belt 24 is trained and moves.
[0101] It may also be noted that the tread deck 12 of FIG. 4 has a
rear pulley 502 connected to extend between the left side and the
right side. The rear pulley 502 is adjustably positioned and
movable forwardly and rearwardly by a bolt structure 504 on the
left side. On the right side, a bolt structure 506 with an
associated spring 508 is provided to provide movable or adjustable
tension to the rear pulley 502 so that in use, the endless belt
remains centered on the front pulley 252 and the rear pulley 502.
Similarly, guides 510 and 512 may be secured to the deck, 500 to
extend away therefrom. The return portion 513 of the endless belt
24 may ride against the guides 510 and 512 to further facilitate
centering of the endless belt 24 on the roller 252 and rear roller
502.
[0102] It may be also noted from FIG. 4 that the tread base 12 has
a length 514 which is here selected to facilitate performance of
walking, jogging or running exercises as desired. That is, the
length 514 may vary for treadmills configured for walking and
treadmills configured for jogging and running. In turn, the length
of the tread 24 itself will vary as desired.
[0103] To use the reorienting treadmill of FIGS. 1, 2 and 4, can be
seen that the user must first move the tread base 12 from the
upright or the stored position shown in FIG. 2 and 4, to the first
or operating position shown in FIG. 1. In the first or operating
position, the user stands on the endless belt 24 and walks, jogs or
runs to perform exercises. If the user desires to vary the
inclination, the user may operate the switch on the control panel
102 to electrically operate the electrical auto-incline system
shown in FIGS. 5 and 4. Alternately, the user may operate or
manipulate an actuation member to, in turn, actuate a pneumatic
cylinder of an inclination system such as that shown in FIG. 6 and
move his or her weight back and forth on the endless belt to vary
the downward movement and control inclination. Upon selection of
the desired inclination, the user may, thereafter, operate control
panel 102 through the use of safety switches and operating switches
to energize the motor, such as motor 138 to, in turn, power the
tread while performing exercises. In order to operate the treadmill
in an electric configuration, the user must obviously provide
energy to the system by inserting the plug 516 (FIG. 4) into a
conveniently available wall outlet.
[0104] Referring now to FIGS. 13 and 14, an alternate reorienting
treadmill 500 is shown. The reorienting treadmill 500 is similar to
the treadmill of FIGS. 1, 2 and 4. It has support structure 502
with a tread base 504. The support structure 502 has a left foot
506 and a comparable spaced apart right foot (not shown) with
interconnecting cross supports (not shown) to define a footprint
similar to the footprint for the treadmill of FIGS. 1 and 2. The
support structure 502 also has a left upright 508 and a spaced
apart right upright (not shown), each secured to the respective
left foot 506 and right foot by any means to provide a secure
connection. Welding bolts or the like are contemplated as
acceptable means.
[0105] The tread base 504 is rotatably attached to and between the
left upright 508 and the right upright such as by bolts 510 or
other similar pins, bars or the like to function as an axel. The
tread base 504 is rotatable between a first position 512, seen in
FIG. 12, and a second or stored position 514, seen in FIG. 13. The
tread base 504 rotates about the bolts 510.
[0106] For some users, the amount of lifting force (LF) necessary
to rotate the tread base 504 upward or counterclockwise (as shown)
from the first position 512 toward the second position 514, may be
large enough so that rotation is difficult.
[0107] In some configurations, components such as an inertia wheel
or motor may be located forwardly 516 and, more specifically,
forward 516 of the bolts 510. The weight of such components and the
related portion of the tread base 504 forward 516 of the bolts 510
will act as a counterbalance to reduce the lifting force (LF)
required to reorient the tread base 504 between the first 512 and
second 514 positions.
[0108] In FIGS. 12 and 13, a lift assistance assembly is also
provided to apply a force or torque urging the tread base 504 from
the first position 512 toward the second position 514. More
specifically, it gas cylinder 505 is rotatably attached at one end
to bracket 503 secured to the tread base 504. That is, the piston
rod 505A has a bushing 505B that is attached by a pin or bolt 505C.
At its other end, the gas cylinder 505 is attached to bracket 501
which is itself attached to the left foot 506 or a cross member 506
(not shown) extending between the left foot 506 and the right foot.
Alternatively, the gas cylinder may be attached to the right foot
and the right side of the tread base 504 (not shown). The gas
cylinder 505 has a bushing 505D held to the bracket 501 by a pin or
bolt 505E.
[0109] In operation, the gas cylinder 505 applies a torque force
(TF) in the direction illustrated. The torque force (TF) is spaced
from the axel bolts 510 a distance D that may be varied to increase
the leverage and in turn the torque in foot-pounds. That is,
gravitational forces (GF) are exerted on the mass of the tread base
504 to develop a torque causing the tread base 504 to rotate toward
the first position. The force and the torque (TF) exerted by the
cylinder 505 is selected so that the resulting required lifting
force (LF) may be nominal (e.g., 5 to 20 pounds).
[0110] FIGS. 12 and 13 also show the left foot 506 with a plurality
of floor supports 499A and 499B attached thereto and extending
therebelow for contact with the support surface. The floor supports
499A and 499B are preferably made of a material that may have a
high coefficient of friction to avoid sliding or walking of the
machine on the support surface. The floor supports 499A and 499B
are also sufficiently soft to reduce the risk of scratching or
marring a support surface such as wood or tile.
[0111] A pivotal handle 498 is also shown rotatably attached by a
bracket 497 fixedly secured to the upright 508 by bolts 497 A and
497B. A resistance knob 496 is also shown that is operable by the
user to vary the resistance to movement of the handle 498. A fixed
handle 495 is also shown in FIGS. 12 and 13.
[0112] Referring now to FIG. 14, an alternative form of reorienting
treadmill 590 is shown. It has a tread base 592 that is
reorientable 593 from a first position 594 to a second position
similar to the treadmills of FIGS. 1 and 2. The tread base 592
rotates 593 about bolts 596 which are attached to left upright 598
and right upright (not shown). The left upright 598 and the right
upright (not shown) are each attached to a respective left foot
support 600 and a right foot support (not shown). Near the rear 602
of the tread base 592, a pair of spaced apart supports are attached
to support the tread base on a support surface. The left and right
supports each have a leg 604 that is snugly and slidably movable in
a housing 606. The leg 604 has a plurality of apertures 608 which
can be placed in registration with an aperture 610 in both sides of
the housing. A pin 612 is insertable through the apertures 610 and
608 to position the leg 604 at a selected distance from the tread
base 592 and to, in turn, vary the inclination of the tread base
592 relative to the support surface.
[0113] The treadmill 590 of FIG. 14 is shown with a flywheel
housing 614 at its front end. The flywheel is connected to the
endless belt (not shown) and receives energy from the user
operating the endless belt of the tread base 592. It also delivers
energy to that endless belt as the user performs walking, running
or jogging exercise when the user is suspended and not in contact
with the endless belt.
[0114] Turning now to FIGS. 15 and 16, an alternate elevation
system 511 is shown attached proximate the rear 602 of tread base
592. The elevation system may have two spaced apart assemblies
comparable to the assembly 513 shown.
[0115] The assembly 513 has a generally rectangular planar member
519 which is secured to the tread base 592 in a generally vertical
orientation. The planar member 519 may be fabricated of metal and
secured to the metal frame of the treadmill by bolts, welding or
the like. The assembly 513 has a support 515 that is an elongate
planar member having a first end 514 and a second end 516. The
first end 514 is shaped to be an elongate finger-like extension
which functions as a stop for the pawl 518. The support 512 farther
has a ratchet section having a plurality of recesses or notches 520
along its perimeter. In the support 515 illustrated in FIG. 15,
three distinct notches 520A, 520B and 520e are formed in the
perimeter 521. In other configurations, 2 or 4 or more notches may
be present. The first notch 520A substantially corresponds to the
perimeter of a section of the pawl 518 whereby the pawl 518 may be
surrounded on a plurality of its sides when that pawl 518 is
inserted into the first notch 520A.
[0116] The second notch 520B is defined by the sides 528 and 530 of
the perimeter 521 of the support 515. The third notch 520e is
defined by the sides 532 and 534 of the support 515.
[0117] The extension 536 may be viewed as being substantially a
rectangularly configured section having a longitudinal axis 538
which is oriented to a horizontal axis 539 at an angle A. Given the
essentially rectangular configuration of extension 536 it should be
understood that linear side 540 would also be oriented at an angle
A to the horizontal. In a preferred construction, angle A may be
within the range of 125 to 136 degrees and preferably 131
degrees.
[0118] The side 522 which extends from side 540 is oriented at an
angle B from the horizontal. In preferred constructions, angle B
may be within the range of zero to ten degrees, preferably four
degrees. Side 524, which extends from side 522, is oriented at an
angle C from the horizontal. Angle C is within the range of 22 to
34 degrees and preferably approximately 28 degrees. Side 526 which
extends from side 524 is oriented at an angle D from the vertical.
In preferred constructions, angle D may be within the range of 36
to 48 degrees and preferably 43 degrees.
[0119] Side 528 which extends from side 526 is oriented at an angle
E from the horizontal. In a preferred construction, angle E is
within the range of four to 15 degrees and preferably nine degrees.
Side 530, extending from side 528, defines an angle F with the
vertical. Angle F is preferably within the range of 17 to 29
degrees and preferably 23 degrees. Side 532, which extends from
side 530, is oriented at an angle G from the horizontal. Angle G is
within the range of five to fifteen degrees and preferably ten
degrees. Side 534, which extends from side 532, is oriented
vertically upright, i.e., at an angle of 90 degrees to the
horizontal. Sides 526 and 530 are dimensioned to provide
sufficiently deep notches to enable the top of the pawl 518 to be
received in the notches 520B and 520C and form a detachable union
with each notch to retain the support in a fixed orientation
relative to the exercise apparatus.
[0120] The support 515 is rotatably connected to the planar member
519 by means of a pivot axle 542. The pivot axle 542 is an elongate
cylindrical member which extends outwardly and perpendicularly from
the surface 521 of the planar member 510. The axle 542 extends
through a circular aperture 544 formed in the support 515. The axle
542 may be fixedly secured to the planar member 519 while the
support 515 is rotatable about the axle 542. Alternatively, the
axle 542 may be fixedly secured to the support 515 and rotatably
secured to the planar member 519. The axle 542 may also be
rotatably secured to the planar member 519 while the support 515 is
rotatably secured to the axle 542.
[0121] The end 516 of the support 512 may be adapted to a
connection bar 546 which extends between two spaced apart supports.
The opposing ends 548 of the bar 546 are fitted with end caps 550.
The end caps 550 are preferably fabricated from a material having a
high coefficient of friction. The end caps 550 rest directly on the
support surface and form the point of contact between the incline
adjustment mechanism and the support surface. The opposite supports
may be further interconnected to one another by means of a spacer
bar 552.
[0122] The pawl 518 is also a planar member having a somewhat
rectangular configuration on one end 554 thereof and an angled
surface 556 on its other end 558. The pawl 518 is rotatably secured
to the planar member 519 by a pivot axle 560.
[0123] Axle 560 may be configured as an elongate cylindrical shaft
which is either fixedly or rotatably secured to the planar member
519 so that the pawl 518 is rotatable with respect to the planar
member 519.
[0124] A substantially V-shaped spring 562 is secured at its first
end 564 to the planar member 519 by means of a pin 566. The end 564
is formed into a substantially circular configuration which in turn
is wrapped around the pin 566. The opposing end 568 of the spring
562 is also formed into a generally circular configuration which in
turn is also secured about a pin 570 which is affixed to the pawl
518. The spring 562 is constructed to exert a force in the
direction of arrow 572. The spring 562 therefore urges the pawl518,
and more specifically, the surface 556 to rotate clockwise into
abutment against the support 515 proximate the notches 520A, 520B
and 520e of that support. Therefore, when the support 515 is
rotated in a clockwise direction about axle 542, for example by the
operation of gravity as the end 602 of the tread base 592 is
lifted, the pawl 518 is urged against the perimeter 521 of the
support 515 which defines the notches. As the surface 556 of the
pawl 518 is urged into one of the notches, the pawl 518 forms a
detachable connection with the support 515.
[0125] When the support 515 engages the support surface, such as a
floor, the support 515 is urged to rotate in a counterclockwise
direction about its pivot axle 542. Should the pawl 518 be secured
in notch 520A of the support 512 counterclockwise rotation of
support 515 is precluded by the pawl 518. When the end 602 of the
treadmill is lifted vertically, the weight of the bar 546 and other
components at the end 516 of the support 515 urges the support 515
to rotate clockwise about the axle 542. The spring 562 is
configured such that the force applied to the pawl 518 is less than
the torque or force urging clockwise rotation of the support
515.
[0126] In lieu of the spring 562, a weight 572 may be attached to
the pawl 518 to urge it to rotate clockwise from notch 520A to
notch 520B and 520C, but to rotate counterclockwise when the pawl
518 is urged to a more upright orientation by corner 574. The
operation of the assembly 513 is described more fully in U.S.
patent application Ser. 539,249 filed Oct. 5, 1995, the disclosure
of which is incorporated herein by reference.
[0127] It should be understood, however, that a non-motorized
arrangement may also be used in which an inertia wheel comparable
to a flywheel 140 is provided to provide or deliver torque or
energy to the endless belt 24 while the user is walking, jogging or
running.
[0128] Reference herein to the details of the illustrated
embodiment is not intended to limit the scope of the claims which
themselves recite those features, which are regarded as essential
to the invention.
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