US20140171269A1 - Device and method for limiting travel in an exercise device, and an exercise device including such a limiting device - Google Patents
Device and method for limiting travel in an exercise device, and an exercise device including such a limiting device Download PDFInfo
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- US20140171269A1 US20140171269A1 US14/189,061 US201414189061A US2014171269A1 US 20140171269 A1 US20140171269 A1 US 20140171269A1 US 201414189061 A US201414189061 A US 201414189061A US 2014171269 A1 US2014171269 A1 US 2014171269A1
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- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 description 29
- 239000012530 fluid Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
- A63B22/0235—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills driven by a motor
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/0048—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with cantilevered support elements pivoting about an axis
- A63B22/0056—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with cantilevered support elements pivoting about an axis the pivoting movement being in a vertical plane, e.g. steppers with a horizontal axis
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
- A63B22/0292—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills separate for each leg, e.g. dual deck
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/008—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters
- A63B21/0083—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters of the piston-cylinder type
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/09—Adjustable dimensions
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- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
A method and/or a device may limit a distance traveled by a treadle assembly in an exercise device. For example, the distance traveled by the treadle assembly may be limited by limiting a distance that a resistance element operably coupled to the treadle assembly may travel. An exercise apparatus may include a travel-limiting device or capability.
Description
- The present application is a continuation of co-pending U.S. patent application Ser. No. 13/626,002 (the “'002 Application”), filed on Sep. 25, 2012, now U.S. Pat. No. 8,663,071, and entitled “Device and Method For Limiting Travel in an Exercise Device, and an Exercise Device Including Such a Limiting Device”, which is a continuation of U.S. patent application Ser. No. 13/050,704 (the “'704 Application”) filed on Mar. 17, 2011, now U.S. Pat. No. 8,272,996, which is a continuation application of U.S. patent application Ser. No. 12/057,964, (the “'964 Application), filed on Mar. 28, 2008, abandoned, and entitled “Device and Method For Limiting Travel in an Exercise Device, and an Exercise Device Including Such a Limiting Device”, which claims the benefit under 35 U.S.C. §119(e) to U.S. Provisional Patent Application No. 60/909,027, (the “'027 Application) filed Mar. 30, 2007, entitled “Device and Method For Limiting Travel in an Exercise Device, and an Exercise Device Including Such a Limiting Device. The '002, '704, '964, and '027 Applications are hereby incorporated by reference into the present application in their entireties.
- The present invention generally relates to exercise devices. In particular, the present invention relates to a combination treadmill and stair-climbing machine. More particularly, the present invention relates to limiting travel for such an exercise device.
- Conventional combination treadmill and stair-climbing machines typically include a frame, a treadle assembly pivotally coupled to a base of the frame, and a resistance element coupled to the treadle assembly and an upright portion of the frame. The treadle assembly is configured to travel a distance in a generally upward direction and a generally downward direction relative to the base of the frame. A piston rod of the resistance element extends when the treadle assembly is in the upward direction. When the treadle assembly travels in the downward direction, the piston rod is retracted or pushed into the resistance element.
- There exists in the art a need for a device to manipulate or adjust the distance traveled by a treadle assembly in the upward and downward directions.
- Embodiments may provide an exercise apparatus. The exercise apparatus may include: a frame; a treadle assembly operably coupled to the frame to travel in a first direction and a second direction that is opposite the first direction; a resistance device operably coupling the treadle assembly to the frame and configured to provide resistance as the treadle travels in the first direction and the second direction; and means for selectively limiting movement of the resistance device to thereby limit movement of the treadle assembly.
- In embodiments, the frame may include a base and at least one upright extending substantially vertically from the base. In such embodiments, the resistance device may operably couple the treadle assembly to the at least one upright.
- In embodiments, the treadle assembly may include a first treadle assembly and a second treadle assembly. The resistance device may include a first resistance element operably coupling the first treadle assembly to the frame and a second resistance element operably coupling the second treadle assembly to the frame. The means for selectively limiting movement of the resistance device may include means for selectively limiting movement of one of the first and second resistance elements to thereby limit movement of one of the first and second treadle assemblies. Alternatively or additionally, the means for selectively limiting movement of the resistance device may include means for selectively limiting movement of the first resistance element and means for selectively limiting movement of the second resistance element to thereby limit movement of the first and second treadle assemblies.
- In embodiments, the resistance device may be configured to be movable between a maximum upper limit and a maximum lower limit. In such embodiments, the means for selectively limiting movement of the resistance device may be configured to set an upper limit for movement of the resistance device that is less than the maximum upper limit.
- In embodiments, the means for selectively limiting movement of the resistance device may comprise a spacer or a plurality of spacers. Alternatively or additionally, the means for selectively limiting movement of the resistance device may comprise a bracket configured to engage the resistance device in a plurality of vertical positions.
- Alternatively or additionally, the means for selectively limiting movement of the resistance device may comprise a movable bracket. In such embodiments, the means for selectively limiting movement of the resistance device may further comprise means for selectively moving the movable bracket. In embodiments, the means for selectively moving the movable bracket may comprises a gear assembly. Alternatively or additionally, the means for selectively moving the movable bracket may comprise a pair of pivoting links.
- Embodiments may provide an exercise apparatus including: a treadle assembly configured to travel in an upward direction and a downward direction; and means for selectively adjusting a distance traveled by the treadle assembly in the upward and downward directions during operation of the exercise apparatus. In embodiments, the means for selectively adjusting a distance traveled by the treadle assembly may comprise at least one spacer. Alternatively or additionally, the means for selectively adjusting a distance traveled by the treadle assembly may comprises a bracket including a plurality of vertical positions. Alternatively or additionally, the means for selectively adjusting a distance traveled by the treadle assembly may comprise a movable bracket.
- Embodiments may provide a method of selectively adjusting a distance traveled by a treadle assembly in an exercise apparatus. The method may comprise selectively positioning a means to determine a distance traveled by the treadle assembly in upward and downward directions during operation of the exercise apparatus. In embodiments, selectively positioning the means may comprise selectively limiting movement of a resistance device operably coupled to the treadle assembly.
- Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
- The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way.
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FIG. 1 is a perspective view of one example of an exercise device with a travel-limiting device. -
FIG. 2 is a perspective view of an upright bracket illustrated inFIG. 1 with a portion of an upright member of a frame and a piston rod of a resistance element in a first position of the upright bracket. -
FIG. 3 is a perspective view of the upright bracket ofFIG. 1 with the piston rod in a second position. -
FIG. 4 is a partially exploded perspective view of the upright bracket with the piston rod in the first position. -
FIG. 5 is a perspective view of another example of a travel-limiting device. -
FIG. 6 is another perspective view of the travel-limiting deviceFIG. 5 . -
FIG. 7 is a perspective view of the travel-limiting device illustrated inFIG. 5 with two spacers coupled to the piston rod. -
FIG. 8 is a perspective view of the travel-limiting device ofFIG. 5 with three spacers coupled to the piston rod. -
FIG. 9 is a cross-sectional view of the travel-limiting device taken along line 9-9 inFIG. 8 . -
FIG. 10 is a perspective view of another example of the travel-limiting device. -
FIG. 11 is a perspective view of a partial exploded view of the travel-limiting device illustrated ofFIG. 10 , without the upright member and the resistance element. -
FIG. 12 is a reversed perspective view of the travel-limiting device illustrated ofFIG. 11 . -
FIG. 13 is an exploded view of the travel-limiting device illustrated ofFIG. 11 . -
FIG. 14 is a perspective view of another example of a travel-limiting device. -
FIG. 15 is a perspective view of the travel-limiting device illustrated ofFIG. 14 , shown without the upright member of the exercise device. -
FIG. 16 is a cross-sectional view of the travel-limiting device taken along line 16-16 inFIG. 14 . -
FIG. 17 is an exploded view of the travel-limiting device ofFIG. 14 . - The following discussion provides a general structural framework for various embodiments of a dual treadmill exercise device having a travel-limiting device or means. Aspects of the present invention involve various structures that may be employed to support the travel-limiting device or means used on the exercise device.
- With reference to
FIG. 1 of the drawings, an exercise device may be configured to provide a user with a walking-type exercise, a stepping-type exercise, or a climbing-type exercise that is a combination of both walking and stepping. In general, the exercise device may include two treadmill-like assemblies (each referred to herein as a “treadle”) pivotally connected with a frame so that the treadles may pivot upward and down about an axis. The axis may be a physical axis (axle) or may be a virtual axis defined by assemblies or components that support each treadle to pivot. Each treadle may be further coupled to the frame via one or more dampening or resistance elements, so that each treadle may travel in an upward direction and a down direction for a distance with respect to a lower frame portion or base. Operatively coupled to at least one of the resistance elements may be a travel-limiting device or means. The travel-limiting device or means may configured to adjust, manipulate, or alter a distance that may be traveled by the treadles, such that the distance is limited. - In use, a user may walk, jog, or run on the treadles. The treadles move by reciprocating in the upward and down directions about a treadle pivot axis while a belt or other tread surface moves along each treadle. The user may use the travel-limiting device to modify or manipulate the distance that may be traveled by the treadles in the upward and downward direction.
- A maximum lower limit for movement of the treadles may be preset by a stop (not shown). For example, a stop may be disposed on each treadle that interacts with the frame, the floor or another stationary part. A maximum upper limit for movement of the treadles may be preset by a stop (not shown). For example, the stop limiting downward movement of one treadle may limit upward movement of the other treadle via a linkage (not shown) that links movement of the treadles in opposite directions. Thus, the resistance element may have a corresponding maximum lower limit and a maximum upper limit.
- Movement of the resistance device may be limited by setting an upper limit that is less than its maximum upper limit using the travel-limiting device. This results in the upward movement of the treadle being limited to less than the maximum upper limit of the treadles. Various means for selectively limiting movement of the resistance device to thereby limit movement of the treadle assembly are disclosed herein. As will be understood in conjunction with the foregoing, such means may selectively limit movement of one of first and second resistance elements, when two resistance elements are employed, to thereby limit movement of at least that resistance element. Also, such means may comprise means for limiting movement of the first resistance element and means for limiting movement of the second resistance element.
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FIG. 1 is a perspective view of one example of anexercise device 10. One embodiment of theexercise device 10 illustrated inFIG. 1 includes a travel-limiting device/means as an upright bracket, that is, a bracket coupled to an upright member, configured to engage with a piston rod of a resistance element in a first position.FIG. 2 is a perspective view of the upright bracket illustrated inFIG. 1 with only a portion of an upright member of a frame of the exercise device shown to better illustrate the upright bracket.FIG. 3 is a perspective view of the upright bracket ofFIG. 2 with the piston rod in a different position of the upright bracket.FIG. 4 is a partially exploded perspective view of the upright bracket illustrated inFIG. 2 . - Referring to
FIG. 1 , theexercise device 10 may include aframe 20, a first treadle assembly ortreadle 12, a second treadle assembly ortreadle 14, a first dampening orresistance device 16, a second or resistance dampening orresistance device 18, and a travel-limiting device/means 100. Eachtreadle treadles frame 20 and are configured to reciprocate in a generally upward and downward manner during use. Eachtreadle - The
frame 20 provides general structural support for the moving components and other components of theexercise device 10. Theframe 20 may be set directly on the floor or may be supported on adjustable legs, cushions, bumpers, wheels, or combinations thereof. Theframe 20 may include abase portion 22, a first orright upright 24, and a second or leftupright 26. Thebase portion 22 may include a forward end region and a rear end region, generally corresponding to the front F and rear R of thetreadles first upright 24 is connected with a right side of the forward end region of thebase portion 22; likewise, thesecond upright 26 is connected to the left side of the forward region of thebase portion 22. Theuprights base portion 22, with a slight rearward sweep. As other configurations of the uprights are possible, it should be understood that the uprights need only extend generally vertically upward from the base of the frame, and may be perpendicular or angled as appropriate or desired. In general, each upright may comprise a substantially vertical post. - Each
resistance device respective treadle respective upright frame 20 to support the front F of thetreadles treadle resistance device treadles - The resistance device(s) 16, 18 may be arranged at various locations between the treadle(s) 12, 14 and the
frame 20 of theexercise device 10. The resistance devices may extend between a left or outer frame member of the left treadle and the left upright frame member and/or a right or outer frame member of the right treadle and the right upright frame member. It should be understood that the movements of the treadles may be physically linked such that one resistance device operates for both treadles. - Generally, each
resistance element cylinder piston rod 16 b, 18 b extends outwardly from the cylinder. Within the respective cylinder, a piston (not shown) is connected with the respective piston rod. The piston defines at least one orifice (not shown) through which hydraulic fluid may flow, and may include a check valve (not shown). The piston subdivides the cylinder into two fluid filled chambers (not shown). During actuation of the resistance element, the piston either moves upward or down in the cylinder. In downward movement or extension of the resistance element, the fluid flows through the orifice at a rate governed partially by the number of orifices and the size of the orifices. One particular resistance element that may be used is shown and described in U.S. Pat. No. 5,762,587 titled “Exercise Machine With Adjustable-Resistance, Hydraulic Cylinder,” the entire disclosure of which incorporated herein by reference. - As shown in
FIG. 1 , both theright resistance element 16 and theleft resistance element 18 may include a treadle travel-limiting device/means 100; otherwise, only one of the resistance elements may be associated with a travel-limiting device/means. A right travel-limiting device/means 100 and a left travel-limiting device/means 100 may be substantially the same in structure and form; therefore, only a single travel-limiting device/means 100 and structures associated therewith will be discussed herein. - Referring to
FIGS. 2-4 , a travel limiting device/means as anupright bracket 100 couples thepiston rod 16 b of theright resistance element 16 to thefirst upright member 24. Theupright bracket 100 allows a user to adjust the amount of thepiston rod 16 b that is extended or pulled out of theresistance element 16 when theright treadle 12 is in a lowest position. In other words, depending on the coupling position, theupright bracket 100 adjusts the amount of thepiston rod 16 b that is available for theresistance device 16 to travel upward. Theupright bracket 100 thereby allows the distance that by thetreadle 12 may travel upward to be adjusted. - The
upright bracket 100 projects from asurface 24 a of theupright member 24, and supports, holds and/or otherwise selectably engages theright resistance element 16 and thereby thetreadle 12. Thebracket 100 may include a substantiallyupright back wall 110 including afirst surface 112 and asecond surface 114. Thesecond surface 114 is affixed to theupright member 24. Afirst plate 116 extends from theback wall 110, and asecond plate 118 extends from theback wall 110 that is parallel to thefirst plate 116. Each of thefirst plate 116 and thesecond plate 118 may include atrack 120. Thetrack 120 may be substantially diagonal from a top portion of theplate plate 116, 118 (i.e., may extend both horizontally and vertically). It should be understood that thetrack 120 may extend only vertically as well. Thetrack 120 is sized and shaped to receive afastener 16 c that is associated with thepiston rod 16 b. - Extending at an angle to the
track 120 is a plurality ofposition grooves 122. Eachgroove 122 is sized and shaped to receive thefastener 16 c of thepiston rod 16 b. Thegroove 122 may also include an open end and a closed end. The open end may include alip 122 a that aids in preventing thefastener 16 c of thepiston rod 16 b from backing out of thegroove 122 absent an intentional force being applied. Based on a selectedposition groove 122, thepiston rod 16 b may be pushed further into or pulled out of theresistance element 16. - The
fastener 16 c used to affix and secure thepiston rod 16 b to theupright bracket 100 may include a threaded bolt or pin that extends through an aperture of thepiston rod 16 b and a nut that is affixed to the threaded bolt. The bolt or pin, with the aid of a nut, may be used to secure thepiston rod 16 b to thebracket 100. In addition to thelip 122 a, the bolt/pin and nut may aid in preventing the bolt/pin from backing out of thegroove 122 absent intentional force by the user. - In use, a user selects one of the
grooves 122 to seat thefastener 16 c that is attach thepiston rod 16 b, thereby extending or retracting a desired amount of thepiston rod 16 b from or into theresistance element 16. The desired amount of thepiston rod 16 determines a maximum distance by thattreadle 12 may travel in the upward direction. Once the user selects agroove 122, the user affixes thepiston rod 16 within the selectedgroove 122 by inserting the bolt through the aperture of thepiston rod 16 b, resting the bolt within the selectedgroove 122, and securing the nut to the threaded portion of the bolt on an outer surface of theupright bracket 100. Thus, it should be understood that theupright bracket 100 may comprise means for selectively limiting movement of the resistance device or means for selectively adjusting a distance traveled by the treadle assembly in the upward and downward directions during operation of the apparatus. - The following discussion relates to another example of a travel-limiting device/means.
FIG. 5 is a perspective view of the travel-limiting device/means as a space-limitingassembly 200 coupled to thepiston rod 16 b of theresistance device 16.FIG. 6 is another perspective view of the space-limiting assembly with one spacer coupled to the piston.FIG. 7 is a perspective view of the space-limiting assembly with two spacers coupled to the piston rod.FIG. 8 is a perspective view of the space-limiting assembly with three spacers coupled to the piston rod.FIG. 9 is a cross-sectional view of the space-limiting assembly taken along the line 9-9 ofFIG. 8 . - Referring to
FIGS. 5-9 , the space-limitingassembly 200 limits an amount of thepiston rod 16 b inserted or retracted into theresistance element 16, thereby limiting the distance that thetreadle 12 may travel in the upward and downward direction. More particularly, thepiston rod 16 b is affixed to theupright member 24 via an upright bracket 24 b, and the space-limitingassembly 200 is coupled to thepiston rod 16 b of theresistance element 16, as discussed below. - The space-limiting
assembly 200 may include aspacer 210, a plurality ofspacers 210 or a device configured to provide a selection of thickness, such as via plural spacers. Thespacer 210 may include acoupling end 212 and a rod-connectingend 214. Thecoupling end 212 may include afirst orifice 212 a and a second orifice 212 b. The rod-connectingportion 214 may be sized and shaped to contour to thepiston rod 16 b of theresistance element 16. More specifically, the rod-connectingportion 214 of eachspacer 210 may include aU-shaped opening 214 a that grips or otherwise engages on thepiston rod 16 b. - The
first orifices 212 a and the second orifices 212 b of eachspacer 210 of the space-limitingassembly 200 may be aligned. Seated within at least one of the aligned orifices, e.g., thefirst orifices 212 a, of eachspacer 210 is a threadedbolt 220. Anut 222 with a treaded aperture receives the threadedbolt 220. Thebolt 220 couples thespacers 210 of the space-limitingdevice 200, and thenut 222 secures thespacers 210 along the bolt 220 A pin (not shown) may be seated within the second orifices 212 b of the spacers coupled to thepiston rod 16 b or not coupled to thepiston rod 16 b to keep the spacers not coupled to thepiston rod 16 from interfering with movement of thepiston rod 16 b. - In use, a user couples one or
more spacers 210 of the space-limitingassembly 200 to thepiston rod 16 b of theresistance element 16 by attaching the rod-coupling end 214 of at least one of thespacers 210 to thepiston rod 16 b. For example, the user may couple onespacer 210 to thepiston rod 16 b. The coupled spacer 210 may reduce the amount of thepiston rod 16 b that is available for theresistance device 16 to travel. As thetreadle 12 travels in the upward direction, only the available portion of thepiston rod 16 b may travel into theresistance element 16, because thespacer 210 coupled to thepiston rod 16 b stops and prevents the remainder of thepiston rod 16 b from being inserted. This in turn reduces the distance that may be traveled by thetreadle 12 in the upward direction. Additionally, the user may select multiple spacers or all of the spacers to manipulate the distance that may be traveled by thetreadle 12 in the upward direction. - Thus, it should be understood that the spacer(s) 210 may comprise means for selectively limiting movement of the resistance device or means for selectively adjusting a distance traveled by the treadle assembly in the upward and downward directions during operation of the apparatus. It should also be understood that the space-limiting
assembly 200 may be coupled to any suitable portion of theexercise device 10, for example, in case none of thespacers 210 are coupled to thepiston rod 16 b. Alternatively, one of thespacers 210 may always be coupled to thepiston rod 16 b. - The following discussion relates to another example of a travel-limiting device/means.
FIG. 10 is a perspective view of the travel-limiting device/means as a variablegear adjustment device 300 coupled to thepiston rod 16 b of theresistance element 16 and to theupright member 24.FIG. 11 is a perspective view of the variable gear adjustment device illustrated inFIG. 10 shown without the upright member.FIG. 12 is a backside perspective view of the variable gear adjustment device ofFIG. 11 .FIG. 13 is an exploded view of the variable gear adjustment device illustrated inFIG. 11 . - Referring to
FIGS. 10-13 , the variablegear adjustment device 300 may include a gear mechanism to adjust the amount of thepiston rod 16 b extended from theresistance element 16, thereby manipulating the distance that thetreadle 12 may travel in the upward direction. The variablegear adjustment device 300 resides partially within theupright member 24. - The variable
gear adjustment device 300 may include ahandle 310, a worm gear assembly 320, and an upright bracket assembly 330. Thehandle 310 may include ashaft 312 with aknob 314 at one end. With theknob 314 located on the outside of theupright member 24, theshaft 312 extends through a hole in a surface of theupright member 24 and connects to the worm gear assembly 320. The worm gear assembly 320, in turn, connects to the upright bracket assembly 330. - As the
handle 310 is turned, the worm gear assembly 320 causes the upright bracket assembly 330 to move within a slot 24 c of theupright member 24. This causes the upright bracket assembly 330 to move upward or downward to adjust the amount of thepiston rod 16 b that extends from theresistance element 16, which in turn changes the distance available to be traveled by thetreadle 12 in the upward direction. For example, if the worm gear assembly 320 lowers the upright bracket assembly 330, the upright bracket assembly 330 pushes thepiston rod 16 b into theresistance element 16 leaving less of thepiston rod 16 b available for travel. On the other hand, if the worm gear assembly 320 raises the upright bracket assembly 330, the upright bracket assembly 330 pulls thepiston rod 16 b out of theresistance element 16 leaving more of thepiston rod 16 b available for travel. - The worm gear assembly 320 may include a
first gear 322 with a threadedshaft 322 a and awheel gear 324 withteeth 324 a that mesh into the threadedshaft 322 a. An axis of thefirst gear 322 is positioned at a right angle to an axis of thewheel gear 324. Thefirst gear 322 also may include a bore 322 b that receives theshaft 312 of thehandle 310, such that theshaft 312 is secured within the bore 322 b of thefirst gear 322 to move therewith. - The upright bracket assembly 330 may include an
upright bracket 332, a connectingbracket 334, abolt 336, and a threadedrod 338. Theupright bracket 332 may include a first longitudinal flat wall and a pair ofsidewalls 332 a extending therefrom. The flat wall may include a first or front surface and a second or back surface. The front surface faces outward toward theresistance element 16; the back surface faces inward toward thefirst surface 24 a of theupright member 24. Each of thesidewalls 332 a may include an aperture 332 b that is sized and shaped to receive thefastener 16 c that attaches thepiston rod 16 b to thebracket 332. - Coupled to the back surface of the
upright bracket 332 is one end of the connectingbracket 334, the other end of the connectingbracket 334 is affixed to thebolt 336. A shaft of the threadedrod 338 extends through a threaded hole of afirst bracket 342, afirst bushing 344, a threaded bore 324 b of thewheel gear 324, asecond bushing 346, and a threaded hole of asecond bracket 348. The threadedrod 338 may be secured in thebolt 336. - The first and
second brackets front surface 24 a of theupright member 24 and into the threaded orifices. With the screws 342 b, 348 b in position, the worm gear assembly 320 is secured to theupright member 24. - In use, for example, a user turns the
knob 314 in a first direction causing thefirst gear 322 to rotate in the clockwise direction. As thefirst gear 322 rotates, thefirst gear 322 drives thewheel gear 324 that engages the threadedrod 338 causing thebolt 336 to move in a downward direction toward the ground. As thebolt 336 travels downward, theupright bracket 332 also travels in the downward direction pushing thepiston rod 16 b into theresistance element 16, thereby reducing the distance that thetreadle 12 may travel in the upward direction. - When the user turns the
knob 314 in a second opposite direction, thefirst gear 322 also rotates to drive thewheel gear 324. The threaded bore 324 a of thewheel gear 324 engages the threadedrod 338 causing thebolt 336 to travel in an upward direction away from the ground. As thebolt 336 travels upward, theupright bracket 332 also travels in the upward direction, thereby pulling thepiston rod 16 b out of theresistance element 16 and increasing the distance traveled by thetreadle 12 in the upward and down directions. Thus, it should be understood that themovable bracket 332 may comprise means for selectively limiting movement of the resistance device or means for selectively adjusting a distance traveled by the treadle assembly in the upward and downward directions during operation of the apparatus, and that the gear assembly and threaded rod may comprise means for selectively moving the movable bracket. - It should understood that the directions in which the first gear, the wheel gear, and the threaded rod move may depend on the direction of the threading. It should also be understood that the threaded rod may be secured to the wheel gear to turn therewith while being threadedly engaged in the bolt of the bracket assembly.
- The following discussion relates to another example of a travel-limiting device/means.
FIG. 14 is a perspective view of the travel-limiting device/means as a pivoting adjustment device 400.FIG. 15 is a perspective view of the pivoting adjustment device 400 illustrated inFIG. 14 , shown without the upright member.FIG. 16 is a cross sectional view of the pivoting adjustment device 400 taken along line 16-16 ofFIG. 14 .FIG. 17 is an exploded view of the pivoting adjustment device 400 illustrated inFIG. 15 . - As shown in
FIGS. 14-17 , the pivoting adjustment device 400 may extend or retract thepiston rod 16 b out of or into theresistance element 16, thereby manipulating the distance that thetreadle 12 may travel in the upward direction. The pivoting adjustment device 400 may include anupright bracket 410, a L-shapedbracket 420, a first threadedpivot assembly 430, a second threadedpivot assembly 440, and ashaft 450 including first and second threadedportions bolt 456. - The
upright bracket 410 may include a first longitudinalflat wall 412 and a pair ofsidewalls 414 extending therefrom. Theflat wall 412 may include a first orfront surface 412 a and a second or back surface 412 b. Thefront surface 412 a faces outward toward theresistance element 16; the back surface 412 b faces inward toward a surface of theupright member 24. Each of thesidewalls 414 may include anaperture 414 a that is sized and shaped to receive the threadedbolt 456 for connecting to thepiston rod 16 b. - The L-shaped
bracket 420 may include afirst portion 422 and asecond portion 424. A surface of thefirst portion 422 is coupled to the second surface 412 b of theupright bracket 410, and rests within a slot 24 c of theupright member 24. The first andsecond pivot assemblies second portion 424 of the L-bracket 420. Welding, gluing, fastening devices or any other suitable approach may accomplish this rigid connection. - The first and
second pivot assemblies first pivot assembly 430 will be discussed in detail herein. Thefirst pivot assembly 430 may include a plate or link 432 having afirst hole 432 a located about a first end and a second hole 432 b located near a second end. A threadedbolt 434 a extends through a washer 434 b, thefirst hole 432 a of theplate 432, abushing 434 c, and abushing housing 434 d that is rigidly affixed to one end of thesecond portion 424 of the L-shapedbracket 420. Anut 434 e having a threaded aperture receives the threadedbolt 434 a. This allows the first end of the 432 plate to be secured and pivotally attached to thebushing 434 c andbushing housing 434 d such that theplate 432 and thebushing 434 d may pivot relative to thebushing housing 434 e. - A second threaded bolt 436 a extends through a second washer 436 b, the second hole 432 b of the
plate 432, a second bushing 436 c, and asecond bushing housing 436 d. A second nut 436 e having a threaded hole receives the second threaded bolt 436 a. This allows the second end of theplate 432 to be secured and pivotally attached to the bushing 436 c and thebushing housing 436 d, such that theplate 432 and the second bushing 436 c may pivot relative to thesecond bushing housing 436 d. Thesecond bushing housing 436 d may include a threadedbore 436 f that is perpendicular to the threaded hole 432 b. The threaded bore 436 f is configured to cooperate with and receive thefirst portion 452 of the threadedshaft 450. - The first and
second pivot assemblies bracket 420. More particularly, thefirst bushing housing 434 d of thefirst pivot assembly 430 is affixed to thefirst end 422 of the L-shapedbracket 420, and the first bushing housing (unnumbered) of thesecond pivot assembly 430 is affixed to a second end (unnumbered) of the L-shapedbracket 420 near thesecond portion 422 of the L-shapedbracket 420. The first and second threadedportions shaft 450 are positioned in the first andsecond pivot assemblies holes 436 f are threaded in opposite directions of one another. - The
bolt 456 of the threadedshaft 450 provides a head at one end and a shank at the other end. The first and second threadedportions shaft 450 extends through a hole in asecond surface 24 d of theupright member 24, the threaded bores 436 f of eachsecond bushing housing 436 d, and an aperture of a mountingbracket 460. The mountingbracket 460 is affixed to a surface of aninterior wall 24 e of theupright member 24. It secures the shank end of thebolt 456 to theupright 24. This prevents the shank end from freely moving as thetreadle 12 is in operation. - In use, for example, a user may turn the
bolt 456, in a first direction, to rotate the threadedportions shaft 450 in eachbushing housing 436 d. This causes thesecond bushing housing 436 d to move toward a center of the shaft 450 (i.e. toward each other). As thesecond bushing housings 436 d move toward the center of theshaft 450, theplates 432 pivot in an upward direction causing the L-shapedbracket 420 to move in a generally upward direction. As the L-shapedbracket 420 moves in the upward direction, theupright bracket 410 also moves in the upward direction, which in turn moves thepiston rod 16 b in the upward direction. This set of movements increases the amount ofpiston rod 16 b that is extended out of theresistance device 16, thereby increasing the distance available to be traveled by thetreadle 12 in the upward direction. - On the other hand, the user may turn the
bolt 456, in a second opposite direction, to cause thesecond bushing housings 436 d to move away from one another. As thesecond bushing housings 436 d move away from one another, theplates 432 pivot and extend in a downward direction toward the ground. This also transitions the L-shapedbracket 420 and the attachedupright bracket 410 from a first position to a second position in the downward direction, thereby pushing thepiston rod 16 b down into theresistance element 16. This action reduces the distance available to be traveled by thetreadle 12 in the upward direction. Thus, it should be understood that themovable bracket 410 may comprise means for selectively limiting movement of the resistance device or means for selectively adjusting a distance traveled by the treadle assembly in the upward and downward directions during operation of the apparatus, and that the pivotinglinks 432 may comprise means for selectively moving the movable bracket. - While specific examples have been described in the specification and illustrated in the drawings, it will be understood by those of ordinary skill in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present disclosure as defined in the claims. Furthermore, the mixing and matching of features, elements and/or functions between various examples is expressly contemplated herein so that one of ordinary skill in the art would appreciate from this disclosure that features, elements and/or functions of one example may be incorporated into another example as appropriate, unless described otherwise, above. Moreover, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from the essential scope thereof. Therefore, it is intended that the present disclosure not be limited to the particular examples illustrated by the drawings and described in the specification as the best mode presently contemplated for carrying out this invention, but that the scope of the present disclosure will include any embodiments falling within the foregoing description and the appended claims.
Claims (13)
1. An exercise apparatus, comprising:
a frame including a base and at least one upright extending substantially vertically from the base, the at least one upright including a slot;
a treadle assembly operably coupled to the frame to travel in a first direction and a second direction that is opposite the first direction;
a resistance device operably coupling the treadle assembly to the frame to provide resistance as the treadle travels in the first direction and the second direction;
a travel-limiting device comprising an element movably associated with the at least one upright to move along the at least one upright and operatively associated with the resistance device, the travel-limiting device further comprising a first threaded pivot assembly joined to the element, a second threaded pivot assembly joined to the element, and a threaded shaft joined to the first and second threaded pivot assemblies; and
the element and the slot are configured such that the slot limits a movement range of the element along the at least one upright.
2. The exercise apparatus of claim 1 , wherein the element comprises an upright bracket and a L-shaped bracket joined to the upright bracket.
3. The exercise apparatus of claim 2 , wherein the element is operatively associated with the resistance device by a pin that passes through aligned holes in the upright bracket and the resistance device.
4. The exercise apparatus of claim 2 , wherein the upright bracket comprises a flat wall and a pair of sidewalls extending from the flat wall, each sidewall includes a hole that aligns with a hole in the resistance device, and a pin passes through the holes in the sidewalls and the resistance device.
5. The exercise apparatus of claim 2 , wherein the first and second threaded pivot assemblies are rigidly connected to the L-shaped bracket at opposite ends of the L-shaped bracket.
6. The exercise apparatus of claim 2 , wherein at least a portion of the L-shaped bracket is positioned within the slot.
7. The exercise apparatus of claim 2 , wherein the first threaded pivot assembly comprises a link, a first bushing housing fixedly joined to the L-shaped bracket and pivotally joined to the link, a second bushing housing pivotally joined to the link, and the second bushing housing includes a threaded bore that receives the threaded shaft therethrough.
8. The exercise apparatus of claim 7 , wherein the second threaded pivot assembly comprises a link, a first bushing housing fixedly joined to the L-shaped bracket and pivotally joined to the link of the second pivot assembly, a second bushing housing pivotally joined to the link of the second pivot assembly, and the second bushing housing of the second threaded pivot assembly includes a threaded bore that receives the threaded shaft therethrough.
9. The exercise apparatus of claim 8 , wherein the first bushing housing of the first threaded pivot assembly and the first bushing housing of the second threaded pivot assembly are connected to the L-shaped bracket at opposite ends of the L-shaped bracket.
10. The exercise apparatus of claim 1 , wherein the threaded shaft includes a first threaded portion associated with the first threaded pivot assembly and a second threaded portion associated with the second threaded pivot assembly.
11. The exercise apparatus of claim 1 , wherein the first and second threaded portions are threaded in opposite directions.
12. The exercise apparatus of claim 1 , wherein the threaded shaft includes a head.
13. The exercise apparatus of claim 12 , further comprising a mounting bracket joined to the at least one upright, and an end portion of the threaded shaft distal from the head is received within a hole of the mounting bracket.
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US14/189,061 US20140171269A1 (en) | 2007-03-30 | 2014-02-25 | Device and method for limiting travel in an exercise device, and an exercise device including such a limiting device |
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US13/050,704 US8272996B2 (en) | 2007-03-30 | 2011-03-17 | Device and method for limiting travel in an exercise device, and an exercise device including such a limiting device |
US13/626,002 US8663071B2 (en) | 2007-03-30 | 2012-09-25 | Device and method for limiting travel in an exercise device, and an exercise device including such a limiting device |
US14/189,061 US20140171269A1 (en) | 2007-03-30 | 2014-02-25 | Device and method for limiting travel in an exercise device, and an exercise device including such a limiting device |
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US13/626,002 Expired - Fee Related US8663071B2 (en) | 2007-03-30 | 2012-09-25 | Device and method for limiting travel in an exercise device, and an exercise device including such a limiting device |
US14/189,061 Abandoned US20140171269A1 (en) | 2007-03-30 | 2014-02-25 | Device and method for limiting travel in an exercise device, and an exercise device including such a limiting device |
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US13/626,002 Expired - Fee Related US8663071B2 (en) | 2007-03-30 | 2012-09-25 | Device and method for limiting travel in an exercise device, and an exercise device including such a limiting device |
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Also Published As
Publication number | Publication date |
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US20090029831A1 (en) | 2009-01-29 |
US20130023383A1 (en) | 2013-01-24 |
US8663071B2 (en) | 2014-03-04 |
US8272996B2 (en) | 2012-09-25 |
US20110256988A1 (en) | 2011-10-20 |
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