Stowable arms

BACKGROUND

Some exercise devices include swing arms for exercising a person's arms and foot links for exercising a person's legs. Disabling the swing arms to exercise only the person's legs may be tedious and time-consuming.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side elevational view schematically illustrating an exercise device in a first position in a first exercise mode according to an example embodiment.

FIG. 2 is a side elevational view schematically illustrating the exercise device of FIG. 1 in a second position in the first exercise mode according to an example embodiment.

FIG. 3 is a side elevational overview schematically illustrating the exercise device of FIG. 1 in a second exercise mode according to an example embodiment.

FIG. 4 is a top perspective view of another embodiment of the exercise device of FIG. 1 according to an example embodiment.

FIG. 5 is an enlarged fragmentary perspective view of the exercise device of FIG. 4 when in a first exercise mode according to an example embodiment.

FIG. 6 is an enlarged fragmentary perspective view of the exercise device of FIG. 4 when in a second exercise mode according to an example embodiment.

FIG. 7 is an enlarged exploded fragmentary perspective view of the exercise device of FIG. 6 according to an example embodiment.

FIG. 8 is a fragmentary sectional view of the exercise device of FIG. 7 according to an example embodiment.

FIG. 9 is an exploded fragmentary perspective view of another embodiment of the exercise device of FIGS. 4-8 according to an example embodiment.

FIG. 10 is a fragmentary sectional view of the exercise device of FIG. 9 according to an example embodiment.

FIG. 11 is an exploded fragmentary perspective view of another embodiment of the exercise device of FIGS. 4-8 according to an example embodiment.

FIG. 12 is a fragmentary sectional view of the exercise device of FIG. 11 according to an example embodiment.

FIG. 13 is a sectional view of the exercise device of FIG. 12 taken along line 13-13 according to an example embodiment.

FIG. 14 is an exploded fragmentary perspective view of another embodiment of the exercise device of FIGS. 4-8 according to an example embodiment.

FIG. 15 is a fragmentary sectional view of the exercise device of FIG. 14 according to an example embodiment.

FIG. 16 is an exploded fragmentary perspective view of another embodiment of the exercise device of FIGS. 4-8 according to an example embodiment.

FIG. 17 is a fragmentary sectional view of the exercise device of FIG. 16 illustrating a connection in a lock state according to an example embodiment.

FIG. 18 is an enlarged fragmentary sectional view of the exercise device of FIG. 7 illustrative the connection in an unlocked state according to an example embodiment.

DETAILED DESCRIPTION OF THE EXAMPLE EMBODIMENTS

FIGS. 1-3 schematically illustrate an exercise device 20 according to an example embodiment. FIGS. 1 and 2 illustrate exercise device 20 in a first set up or mode in which exercise device 20 facilitates concurrent exercise of both the legs or lower body of a person and the arms or upper body of the person. FIG. 3 illustrates exercise device 20 in a second alternative set up or mode in which exercise device 20 facilitates just the exercise of the legs or lower body of the person. As will be described hereafter, exercise device 20 provides a relatively uncomplicated and low-cost mechanism for switching between the two modes in a time efficient manner.

Exercise device 20 generally includes frame 22, control interface 23, guides 24, foot links 26, swing arms 28, connection links 30, frame retainer 31 and control interface 23. In the particular example illustrated, exercise device 20 includes a pair of substantially identical foot links 26, a pair of swing arms 28 and a pair of connection links 30. However, for purposes of illustration and ease of discussion, FIG. 1-3 illustrate one of each pair.

Frame 22 comprises one or more structures configured to support the remaining structures or components of exercise device 20 relative to a wall or floor. In the particular example illustrated, frame 22 includes a generally horizontal portion 34 and a vertical portion 36. Horizontal portion 34 extends along a floor or other support surface while vertical portion 36 extends upwardly from horizontal portion 34. Horizontal portion 34 supports guide 24 while portion 36 supports swing arms 28 and control interface 23. Although portions 34 and 36 are illustrated as each being generally linear, portions 34 and 36 may have a variety of sizes, shapes and configurations and may be composed of multiple segments which are integral, which are welded to one another, which are bonded to one another or which are fastened or otherwise secured to one another.

Control interface 23 comprises an electronic device configured to interface with a person using exercise device 20. In one embodiment, interface 23 facilitates input of instructions or commands by the person or from an external source. Such commands may be used to set or establish levels of resistance, speed or other settings to vary or control work out parameters. In one embodiment, interface 23 may additionally or alternatively be configured to provide the person with information or feedback regarding the current workout. In particular embodiments, interface 23 may additionally be configured to provide a person using exercise device 20 with information regarding exercise goals, past workouts, recommended settings or entertainment information, such as news, videos or music. In one embodiment, control interface 23 may be configured to communicate with other external electronic devices, such as other computers, servers come exercise devices or the like in a wired or wireless fashion.

In one embodiment, interface 23 may include one or more displays that provide the user with visual information. In one embodiment, interface 23 may additionally include one or more speakers providing audible information or entertainment. Interface 23 may additionally include one or more microphones facilitating entry of audible commands in addition to or as an alternative to manual interfaces, such as touchpads, push buttons, slides, toggles, switches or touch screens.

Guide 24 (schematically shown) comprises an arrangement of one or more structures or one or more mechanisms configured to facilitate movement of foot link 26 relative to frame 22 in one or more pre-described or predetermined paths or manners. Guide 24 controls movement of foot link 26 such that motion or movement of foot link 26 has a reciprocating component. In one embodiment, guide 24 is configured such that foot link 26 reciprocates generally towards and away from control interface 23 in forward and rearward directions. For example, in one embodiment, guide 24 may be configured such that foot link 26 linearly reciprocates in the directions indicated by arrows 40, wherein the movement of foot link 26 is substantially contained within a single plane. An example of such motion may be found in skier exercise devices that simulate cross-country skiing. In another embodiment, guide 24 may be configured such that foot link 26 moves in an elliptical orbit while reciprocating in forward and rearward directions. In yet other embodiments, guide 24 may be configured such that foot link 26 reciprocates in a generally vertical direction, either along a linear path or along a circular or elliptical path. An example of such motion may be found in stepper exercise devices. In yet other embodiments, guide 24 may be configured to facilitate movement of foot link 26 in other motions relative to frame 22. Although guide 24 is illustrated as extending between frame 22 and foot link 26, in other embodiments, guide 24 may be located rearwardly or forwardly of foot link 26 and may extend over or above link 26.

Each foot link 26 comprises one or more structures configured to engage a person's leg or foot such that movement of the person's leg or foot causes movement of foot link 26. For example, in one embodiment, foot link 26 may include a foot rest or peddle (not shown) upon which a person may place his or her foot and apply force to move and reciprocate foot link 26. Foot link 26 is configured to cooperate with guide 24 such that reciprocal movement of foot link 26 is directed by guide 24.

Swing arm 28 comprises one or more structures configured to be gripped by a person's hand and to be reciprocated to exercise a person's arm and upper body. Swing arm 28 includes a gripping portion 42, an intermediate portion 44 pivotably connected to frame 22 and an end to portion 46 pivotably connected to connection links 30. Gripping portion 42 comprises that portion of swing arm 28 configured to be grasped or gripped by a person's hand. Intermediate portion 44 facilitates pivotal movement of swing arm 28 about a substantially horizontal axis 48. In other embodiments, swing arm 28 may be movably supported in other fashions by frame 22. For example, in other embodiments, swing arm 28 may linearly translate or slide back and forth in a reciprocal manner. Although swing arm 28 is illustrated as comprising two generally linear segments, in other embodiments, swing arm 28 may have other shapes, relative dimensions and configurations.

Connection link 30 comprises one or more segments or links configured to connect foot link 26 and swing arm 28 such that movement of foot link 26 and swing arm 28 is coordinated. In one embodiment, connection link 30 is configured and appropriately connected to foot link 26 and swing arm 28 such that when foot link 26 is moving forwardly (towards control interface 23), swing arm 28 is moving rearwardly and when foot link 26 is moving rearwardly, swing arm 28 is moving forwardly. In another embodiment, connection link 30 may alternatively be configured and appropriately connected between foot link 26 and swing arm 28 such that when foot link 26 is moving forwardly, swing arm 28 is also moving forwardly and when foot link 26 is moving rearwardly, swing arm 28 is also moving rearwardly. In yet another embodiment, connection link 30 may be configured such that when foot link 26 is moving upwardly, swing arm 28 is also moving upwardly and when foot link 26 is moving downwardly, swing arm 28 is also moving downwardly. In still other embodiments, connection link 30 may be configured such that when foot link 26 is moving upwardly, swing arm 28 is moving downwardly and vice versa.

In the particular example embodiment illustrated, connection link 30 has a first portion 52 pivotably connected to end portion 46 of swing arm 28 and a second portion 54 connected to foot link 26. In the example illustrated, portion 54 is pivotably connected to foot link 26. In the embodiment illustrated, end portions 52 and 54 facilitate pivotal movement about at least horizontal axis. In other embodiments, portion 54 may be connected to foot link 26 in a non-pivotable manner.

Frame retainer 31 comprises a mechanism configured to secure and retain swing arm 28 against movement when swing arm 28 is disconnected from foot link 26. In the particular example illustrated, frame retainer 31 is configured to retain connection links 30 against movement when connection links 30 is disconnected from foot link 26, thereby also securing swing arm 28 against movement. In the particular example illustrated, frame retainer 31 is associated with frame 22. In other embodiments, frame retainer 31 may be coupled to or connected to other structures of exercise device 20.

In one embodiment, connection link 30 is configured to be disconnected from and connected to frame retainer 31 in a tool-less manner. In other words, connection link 30 may be separated and disconnected from or connected to frame retainer 31 in a manual fashion without a person having to acquire and use a separate tool, such as a wrench, screwdriver or the like, to remove or disconnect a fastener. As a result, swing arms 28 may be more easily disabled and exercise device 20 may be more easily converted between the first exercise mode and the second exercise mode in less time. According to one embodiment, connection link 30 is configured to be connected to frame retainer 31 with a single hand of a person. In other embodiments, connection link 30 may alternatively be removably connected to frame retainer 31 by one or more fasteners or other mechanisms which require tools or which require two hand for disconnecting link 30 from frame retainer 31.

For purposes of this disclosure, the term “coupled” shall mean the joining of two members directly or indirectly to one another. Such joining may be stationary in nature or movable in nature. Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate member being attached to one another. Such joining may be permanent in nature or alternatively may be removable or releasable in nature. The term “operably coupled” shall mean that two members are directly or indirectly joined such that motion may be transmitted from one member to the other member directly or via intermediate members.

According to one embodiment, frame retainer 31 secures connection link 30 with a projection and detent arrangement, wherein connection link 30 includes one of a projection and a detent and wherein frame retainer 31 comprises the other of the projection and the detent. The detent receives the projection to secure connection link 30 against movement in forward and rearward directions as indicated by arrows 40 in FIG. 1. In one embodiment, frame retainer 31 comprises one of a projection and a detent extending along an axis substantially parallel to the axis in which the other of the projection and the detent associated with connection link 30 extends when connected to foot link 26. In another embodiment, frame retainer 31 may comprise one of a projection and a detent extending along an axis non-parallel, such as perpendicular, to the axis in which the other of the projection and the detent associated with connection link 30 extends when connected to foot link 26. In such an embodiment, connection link 30 may be additionally configured to rotate or swivel to facilitate connection with retainer or 31. In one embodiment, frame retainer 31 may include a quick release mechanism for providing a positive lock or positive securement of connection link 30 to frame 22. In yet other embodiments, frame retainer 31 may have other configurations for securing connection link 30 or swing arm 28.

FIGS. 1 and 2 illustrate exercise device 20 in the first mode in which both a person's upper body and lower body are exercised. FIG. 1 illustrates foot link 26 in a forward most position which results in movement of swing arm 28 to a rearward most position. Conversely, FIG. 2 illustrates foot link 26 moved to a rearward most position which results in swing arm 28 being moved to a forward most position.

As noted above, exercise device 20 includes a pair of foot links 26, a pair of connection links 30 and a pair of swing arms 28, wherein the only one of each pair is shown. When one of foot links 26 is in the forward most position, the other of the links 26 is in the rearward most position. Likewise, when one of swing arms 28 is in the forward most position, the other of swing arms 28 is in the rearward most position.

FIG. 3 schematically illustrates exercise device 20 in the second exercise mode in which swing arms 28 are disabled or otherwise disengaged from foot link 26 so as to not move in coordination with foot links 26. As a result, when exercise device 20 is in the second mode, a person may exercise just their lower body or legs without swing arms 28 reciprocating back-and-forth during such exercise. When exercise device 20 is in the second mode shown in FIG. 3, swing arms 28 are stowed and generally stationary while foot link 26 continues to be reciprocated by the leg or foot of the person using exercise device 20. In particular embodiments, one of swing arms 28 may be disabled while the other of swing arms 28 remains connected to its corresponding foot link 26.

When exercise device 20 is in the second exercise mode shown in FIG. 3, connection link 30 is disconnected from foot link 26. As a result, swing arm 28 is disconnected from foot link 26. Connection link 30 is configured to be disconnected from foot link 26 in a tool-less manner. In other words, connection link 30 may be separated and disconnected from foot link 26 in a manual fashion without a person having to acquire and use a separate tool, such as a wrench, screwdriver or the like, to remove or disconnect a fastener. As a result, swing arms 28 may be more easily disabled and exercise device 20 may be more easily actuated to a second exercise mode in less time. According to one embodiment, connection link 30 is configured to be disconnected from foot link 26 with a single hand of a person. In other embodiments, connection link 30 may alternatively be removably connected to foot link 26 by one or more fasteners or other mechanisms which require tools or which require two hand for disconnecting link 30 from foot link 26.

According to one embodiment, connection link 30 is removably connected to foot link 26 by a foot link retainer 60 (part of a projection and detent mechanism) which also pivotably connects link 30 to foot link 26. This duel nature of foot link retainer 60 reduces complexity of exercise device 20. According to one embodiment, foot link retainer 60 comprises a projection associated with foot link 26 and a corresponding detent associated with connection link 30, wherein the detent receives the projection to releasably and pivotably connect link 32 foot link 26. For example, in one embodiment, a projection may comprise a pin while the detent comprises a ring. In another embodiment, foot link retainer 60 may alternatively comprise a projection associated with link 30 and a corresponding detent associated with foot link 26. In still other embodiments, foot link retainer 60 may have other configurations.

According to one embodiment, frame retainer 31 and foot link retainer 60 comprise similar connection mechanisms, mechanically operating in similar fashions to releasably retain link 30. In one embodiment, frame retainer 31 and connection 68 have an arrangement of structures or components coupled to frame 22 and foot link 26, respectively, which are similar to one another and which both engage, in the same fashion, an arrangement of structures provided at an end portion of link 30. In other words, frame retainer 31 and foot link retainer 60 releasably connect to a same single structure or mechanism associated with an end portion of link 30. According to one embodiment, a majority of the components or parts or the most complex or more expensive parts utilized to provide releasable connection of link 32 either frame 22 or foot link 26 are provided on the end portion of link 30. As a result, rather than the majority of parts or more expensive parts being duplicated for each of frame retainer 31 and foot link retainer 60, the majority of such parts or the more expensive parts need only be provided once in a single shared location on link 30, reducing complexity and cost of exercise device 20.

FIG. 3 illustrates connection link 30 disconnected from foot link 26 and alternatively secured by frame retainer 31. In the example embodiment illustrated, when connection link 30 is secured by frame retainer 31, gripping portion 42 of swing arm 28 extends rearwardly of the forward most position of swing arm 28 when swing arm 28 is in a first exercise mode. In particular example illustrated, gripping portion 42 of swing arm 28 extends rearwardly of control interface 23 when swing arm 28 is stowed and secured by frame retainer 31. According to one embodiment, when swing arm 28 is in the disabled position, gripping portions 42 are located in alignment with one another on opposite transverse sides and are longitudinally located so as to serve as handle bars or grips which a person may grasp while exercising (reciprocating) his or her legs or lower body using foot link 26.

FIGS. 4-8 illustrate exercise device 120, a particular example of exercise device 20. Like exercise device 20, exercise device 120 is configured to be more easily switched between a first set up or exercise mode in which exercise device 120 facilitates concurrent exercise of both the legs or lower body of a person and the arms or upper body of the person and a second alternative set up or exercise mode in which exercise device 120 facilitates just the exercise of the legs or lower body of the person. As shown by FIG. 4, exercise device 120 includes frame 122, control interface 123, guide 124, foot links 126, swing arms 128, connection links 130 (both of which are shown in FIG. 6), frame retainers 131 (both of which are shown in FIG. 5) and toot link retainers 160.

Frame 122 comprises one or more structures configured to support the remaining structures are components of exercise device 120 relative to a wall or floor. In the particular example illustrated, frame 122 includes a generally horizontal portion 134, a vertical portion 136, stabilizer portions 137, 138 and swing arm supports 140. Horizontal portion 134 extends along a floor or other support surface while vertical portion 136 extends upwardly from horizontal portion 134. Horizontal portion 134 supports guide 24 while portion 136 supports swing arms 128 and control interface 123.

Stabilizer portions 137, 138 transversely extend outwardly from horizontal portion 134 to stabilize and support horizontal portion 134. In the example illustrated, stabilizer portion 137 is located at a rear 200 of frame 122 while stabilizer portion 138 is proximate a front 202 of frame 122. In other embodiments, stabilizer portions 137, 138 may have other configurations, may be provided in other locations along frame 122 or may be omitted.

Swing arm supports 140 transversely project from vertical portion 136 proximate to front 202 of frame 122. Swing arm supports 140 pivotably support swing arms 128 for pivotable or rotational movement about axis 148. In particular embodiments, swing arm supports 140 may apply a selected and controlled varying resistance to pivotal movement of swing arms 128. In other embodiments, this feature may be omitted.

Control interface 123 comprises an electronic device configured to interface with a person using exercise device 120. In one embodiment, interface 123 facilitates input of instructions or commands by the person or from an external source. Such commands may be used to set or establish levels of resistance, speed or other settings to vary or control work out parameters. In one embodiment, interface 123 may additionally or alternatively be configured to provide the person with information or feedback regarding the current workout. In particular embodiments, interface 123 may additionally be configured to provide a person using exercise device 120 with information regarding exercise goals, past workouts, recommended settings or entertainment information, such as news, videos or music. In one embodiment, control interface 123 may be configured to communicate with other external electronic devices, such as other computers, servers or portable devices in a wired or wireless fashion.

In one embodiment, interface 123 may include one or more displays that provide the user with visual information. In one embodiment, interface 123 may additionally include one or more speakers providing audible information or entertainment. Interface 123 may additionally include one or more microphones facilitating entry of audible commands in addition to or as an alternative to manual interfaces, such as touchpads, push buttons, slides, toggles, switches or touch screens.

Guide 124 comprises an arrangement of one or more structures or one or more mechanisms configured to facilitate movement of foot links 126 relative to frame 122 in one or more pre-described or predetermined paths or manners. Guide 124 controls movement of foot links 126 such that motion or movement of foot links 26 has a reciprocating component. In the embodiment illustrated, guide 24 is configured such that foot links 126 reciprocate in an alternating fashion with respect to one another generally towards and away from control interface 23 in forward and rearward directions. In the example illustrated, guide 124 is configured such that rearward portions of foot links 126 are constrained to move in an orbital path such that the overall motion of foot links 126 is elliptical.

As shown by FIG. 4, guide 124 includes orbital mechanism 210, guide tracks 212 and engagement rollers 214. Orbital mechanism 210 comprises a mechanism operably connected to rearward portions of foot links 126 and configured so as to constrain movement of rear portions of foot links 126 in an orbital path. In embodiment, orbital mechanism 210 comprises a flywheel (not shown) rotationally supported about a central axis and a pair of crank arms (not shown), wherein one of the crank arms has a first end rotationally supported about the central axis and a second end rotationally connected to one of swing arms 128 and wherein the other of the crank arms has a first end rotationally supported about the central axis and a second end rotationally connected to the other of swing arms 128. An example orbital mechanism 210 is described in co-pending US Patent Application Ser. No. 11/054,376, published on Aug. 24, 2006 as publication US 2006/0189445, a full disclosure which is hereby incorporated by reference.

Guide tracks 212 comprise elongate surfaces proximate a forward end of foot links 126 and configured to guide and direct reciprocal movement of a forward end of foot links 126. In the embodiment illustrated down a guide tracks 212 are inclined. For example, one embodiment, guide tracks 212 are inclined at approximately 30 degrees. In another embodiment, guide tracks 212 may alternatively be inclined at other angles, may be level or may be declined. In the embodiment illustrated, guide tracks 212 have an upper surface configured to laterally contain engagement rollers 214. In one embodiment, guide tracks 212 have a generally U-shaped cross-sectional configuration size and shape to mate with engagement rollers 214 to assist in lateral containment of rollers 214 on track 212. In other embodiments, guide tracks 212 may have other configurations.

Engagement rollers 214 comprise rollers rotationally supported at forward portion of foot links 126 that are configured to roll and move along their respective guide tracks 212. In the embodiment illustrated, each engagement in roller 214 is laterally constrained within a substantially U-shaped channel. In other embodiments, engagement rollers 214 and tracks 212 may have other cooperating configurations. In yet other embodiments, engagement rollers 214 may be omitted, wherein other low friction engagement members or structures are coupled to foot links 126 so as to guide and facilitate movement of foot links 126 along guide tracks 212. In still other embodiments, guide tracks 212 and engagement rollers 214 may be switched such that engagement rollers 214 are replaced with one or more rotatable rollers and wherein a downwardly facing track is coupled to forward ends 224 of each of supports 220. In such an embodiment, the downwardly facing groove of the track receives the rollers and moves along the rollers. In still other embodiments, guide 124 may of other configurations.

Each foot link 126 comprises one or more structures configured to engage a person's leg or foot such that movement of the person's leg or foot causes movement of foot link 126. In the embodiment illustrated, each foot link 126 includes a support 220 and a foot rest 222. Support 220 comprises an elongate bar, rod or otherwise rigid structure having a forward end 224 supporting engagement roller 214 and a rear end 226 connected to orbital mechanism 210. Each foot rest 222 comprises a petal or other surface upon which a person may place his or her foot to transfer force to foot link 126. In one embodiment, foot rests 222 are configured to form toe straps and/or toe and heel cups which aid in forward motion recovery at the end of a rearward or forward striding motion of a user's foot.

Swing arms 128 comprise one or more structures configured to be gripped by a person's hand and to be reciprocated to exercise a person's arm and upper body. Each swing arm 128 includes a gripping portion 142, an intermediate portion 144 pivotably connected to support 140 of frame 122 and an end to portion 146 pivotably connected to connection link 130. Gripping portion 142 comprises that portion of swing arm 128 configured to be grasped or gripped by a person's hand. Intermediate portion 144 facilitates pivotal movement of swing arm 128 about the substantially horizontal axis 148. Although swing arms 128 are illustrated as being bowed, in other embodiments, swing arms 128 may have other shapes, relative dimensions and configurations.

Each connection link 130 comprises one or more segments or links configured to connect foot link 126 and swing arm 128 such that movement of foot link 126 and swing arm 128 is coordinated. In one embodiment, connection link 130 is configured and appropriately connected to foot link 126 and swing arm 128 such that when foot link 126 is moving forwardly (towards control interface 123), swing arm 128 is moving rearwardly. When foot link 126 is moving rearwardly, swing arm 128 is moving forwardly. In other words, when foot link 126 is in a forward most position, the connection between connection link 130 and swing arm 128 is on an opposite side of axis 148 as gripping portion 142.

FIGS. 5-7 illustrate connection link 130 in more detail. As shown by FIG. 5, connection link 130 includes a first portion 152 pivotably connected to swing arm 128 and a second end portion 154 pivotably connected to support 220 of foot link 126. Portion 152 pivotably connects connection link 130 to swing arm 128 for pivotal movement about a substantially horizontal axis 228. In the example illustrated, portion 152 includes a swivel joint 230 which enables connection link 130 to be rotated about axis 232, which is perpendicular to axis 228, to facilitate connection of end portion 154 to frame retainer 131 as will be described hereafter.

In one embodiment, swivel joint 230 includes an eyelet 234 through which a pin 236 extending along an axis 228 extends to pivotably connect eyelet 234 to swing arm 128. Eyelet 234 further includes an externally threaded rod or shaft rotatably received within an internally threaded bore of link 130. In another embodiment, eyelet 234 may have other configurations which facilitate relative rotation of connection link 130 relative to eyelet 234 about axis 232 while axially retaining connection link 130 relative to eyelet 234. In still other embodiments wherein end portion 154 is not rotated for connection with frame retainer 131, such as when frame retainer 131 extends parallel to axis 228, swivel joint 230 may be omitted.

End portion 154 comprises that portion of connection link 130 configured to be pivotably connected to foot link 126 by foot link retainer 160. As shown by FIG. 6, foot link retainer 160 is coupled to foot link 126 and includes a projection 250 extending along axis 252 and a base portion 254. As shown by FIG. 7, end portion 154 of connection link 130 comprises a ring 260 having a bore 262 rotationally supported by a spherical bearing 264. As shown by FIG. 5, when end portion 154 is connected to foot link 126, bore 262 receives projection 250. As a result, forward or rearward movement of foot link 126 is transmitted to swing arm 128 by connection link 130. At the same time, end portion 154 is permitted to rotate about axis 252 pivotably connecting link 130 and foot link 126.

In the particular embodiment illustrated, end portion 154 is further configured to be magnetically retained upon projection 250. In one embodiment, ring 260 comprises a ring magnet 268 and a retainer 270, wherein projection 250 and/or base portion 254 are either magnetic or are formed from a magnet attracted material, such as iron or steel. In one embodiment, retainer 270 is formed from a non-magnetic material, such as a plastic or polymer, wherein retainer 270 is sufficiently thin so as to not sufficiently interfere with the magnetic field of ring magnet 268 to inhibit magnetic retention of end portion 154. In yet another embodiment, ring 260 or its retainer 270 may be formed from a magnetic attracted material, such as iron or steel, while projection 250 and/or base portion 254 is formed from a magnetic material. In yet other embodiments, neither end portion 154 nor projection 250 may be formed from a magnetic material.

FIGS. 7 and 8 illustrates frame retainer 131 in more detail. As shown by FIG. 7, frame retainer 131 comprises a projection 274 extending from a base 276. Projection 274 is configured to be received within bore 262 of end portion 154. As shown by FIG. 5, projection 274 extends along an axis 278 that is nonparallel to axis 252. In one embodiment, axis 278 is substantially perpendicular to axis 252. As noted above, connection link 130 is configured to be rotated about axis 232 while connected to swing arm 128 so as to reorient bore 262 from a first position in which bore 262 extends along axis 252 to a second orientation in which bore 262 is aligned with and extends along axis 278. Once bore 262 is in alignment with axis 278, end portion 154 is lowered onto projection 274 with projection 274 received within bore 262. As a result, forward or rearward reciprocal movement of connection link 130 and pivotal movement of swing arm 128 is restricted or prevented by frame retainer 131. Swing arm 128 is stowed in a stationary fashion.

In one embodiment, surrounding portions of frame retainer 131 are formed from one or more magnetic materials or one or more magnet attracted materials to assist in retaining connection link 130 in a retained state and to prevent accidental dislodging of connection link 130. For example, in one embodiment in which ring 260 includes magnetic ring 268, projection 274 or base 276 may be formed from a magnetic attracted material, such as iron or steel. In other embodiments, projection 274 or base 276 may be formed from a magnetic material. In yet other embodiments, such portions may alternatively be nonmagnetic.

Overall, connection link 130 provides a secure connection link between foot link 126 and swing arm 128 such that translation of foot link 126 along track 212 may be transmitted to swing arm 128. At the same time, end portion 154 may be disconnected from foot link 126 in a tool-less manner, disconnecting swing arm 128 from foot link 126. In particular, a person simply needs to pull end portion 154 off of projection 250 with sufficient force so as to overcome the magnetic attraction therebetween.

When swing arm 128 is disconnected from foot link 126 such that exercise device 120 is in the second exercise mode, end portion 154 may be easily connected to frame retainer 131 in a tool-less manner. A person simply needs to rotate connection link 130 and align bore 262 with projection 274 while lowering connection link 130 onto frame retainer 131. Because projection 274 extends along a generally vertical axis 278, gravity assists in retaining end portion 154 on frame retainer 131. Additional retention of end portion 154 on frame retainer 131 is provided by a magnetic attraction.

When a person desires to switch exercise device 120 to the first exercise mode, the person simply needs to lift connection link 130 with sufficient force to overcome gravity and the magnetic attraction to withdraw projection 274 from bore 262. Thereafter, the person rotates connection link 130 about axis 232 to align bore 262 with axis 252. Thereafter, the person simply moves connection link 130 in a lateral direction until projection 250 is received within bore 262.

FIGS. 5-8 illustrate just one of many variations for connection link 130, frame retainer 131 and foot link retainer 160. Although connection link 130 is illustrated as having swivel joint 230 at end portion 152, in other embodiments, end portion 154 may alternatively be connected to a remainder of connection link 130 by a similar swivel joint. For example, ring 260 may be supported by a threaded shaft which is threadably received within a threaded bore of connection link 130. Although swivel joint 230 is illustrated as having and eyelet 234 extending from an externally threaded shaft that is received within an internally threaded bore, in other embodiments, eyelet 234 may alternatively extend from an internally threaded bore that receives an externally threaded shaft associated with the remainder of connection link 130. Although connection link 130 is illustrated as substantially a single link, in other embodiments, connection link 130 may include additional links. In one embodiment, connection link 130 may include multiple links which are interconnected by a swivel joint permitting relative rotation about axis 232. For example, connection link 130 may include a pair of links joined by intermediate externally threaded member received within internally threaded bores associate with each link. In still other embodiments wherein projection 274 extends along an axis substantially parallel to axis 252, swivel joint 230 may be omitted.

FIGS. 9 and 10 illustrate exercise device 320, another embodiment of exercise device 20 (shown in FIGS. 1-3). Like exercise device 120, exercise device 320 includes frame 122, control interface 123, guide 124, foot links 126, and swing arms 128 (each of which are shown in FIGS. 4-6). Exercise device 320 is similar to exercise device 120 except that exercise device 320 includes connection links 330 (one of which is shown) and frame retainer 331 in lieu of connection link 130 and frame retainer 131, respectively. Although not illustrated, exercise device 320 further includes a foot link retainer substantially identical to frame retainer 331, but extending from each foot link 126 rather than frame 122. Like foot link retainer 160, the foot link retainer of exercise device 320 is configured to engage connection link 330 to operably couple connection link 330 to the associated foot link 126.

As shown by FIGS. 9 and 10, connection link 330 is substantially identical to connection link 130 except that connection link 330 includes end portion 354 in place of end portion 154. End portion 354 is configured to releasably connect link 330 to frame retainer 331 or alternatively to connect connection link 332 the foot link retainer (not shown). End portion 354 includes spherical bearing 364, fastener 366 and quick disconnect component 368. Spherical bearing 364 is rotationally supported at end portion 354. Fastener 366 extends through spherical bearing 364 and is connected to quick disconnect component 368. In the particular example illustrated, quick disconnect component 368 includes a threaded bore 370 and fastener 366 comprising a threaded bolt threaded into bore 370 to secure component 368 to spherical bearing 364 and end portion 354 of connection link 330. In other embodiments, component 368 may be secured to spherical bearing 364 in other fashions.

Quick disconnect component 368 is configured to releasably connect connection link 330 to frame retainer 331 and frame 122 when exercise device 320 is in the second exercise mode in which swing arms 128 (shown in FIG. 4) are stationarily retained during reciprocation or other movement of foot links 126 (shown in FIG. 4). Component 368 generally includes a body 372, engagement members 374 and bias members 376. Body 372 forms an interior bore 378 configured to receive at least portions of frame retainer 331 (or portions of the foot link retainer) and one or more radially extending cavities 380 in which engage members 374 and bias members 376 are contained.

Engagement members 374 comprise one or more members within cavities 380 which are movable between an extended position in which engage members partially project into bore 378 for engagement with retainer 331 and a retracted position in which a greater extent of members 374 is withdrawn from bore 378, permitting retainer 331 be withdrawn from bore 378. In the example illustrated, members 374 comprise balls. In other embodiments, members 374 may comprise rods, pins or other structures.

Bias members 376 bias engagement members 374 to the extended position. In the example illustrated, bias members 376 comprise compression springs. In other embodiments, bias members 376 may comprise other forms of springs or resilient biasing mechanisms.

Frame retainer 331 comprises a projection, such as a shaft, pin, rod and the like which includes a circumferential channel 384. Frame retainer 331 is configured to be inserted into bore 378 such that retainer 331 engages members 374 to move members 374 against the bias force provided by members 376 to the retracted position until channel 384 is positioned opposite to or across from members 374. At such point in time, bias members 376 urge engagement members 374 to the extended position in which members 374 project into channel 34 to axially retain component 368 and link 330 on retainer 331. To disconnect link 330, a person merely pulls upon link 330 with a sufficient force such that retainer 331 engages and moves members 374 in a radially outward direction to the retracted positions, permitting withdrawal of retainer 331 from channel 378. As a result, component 368 and retainer 331 cooperate to facilitate disconnection of link 330 without tools and with a single hand. Likewise, component 368 and the foot link retainer cooperate to facilitate disconnection of link 330 without tools and with a single hand.

In other embodiments, other quick disconnect arrangements or mechanisms may be utilized. For example, in other embodiments, component 368 may additionally be provided with a resiliently biased sleeve that slides over body 372 and that is resiliently biased by a spring to a first position in which the sleeve engages members 374 to retain members 374 in their extended positions. Manual movement or retraction of the sleeve against the spring to a second position permits members 374 to move radially outward to their retracted positions, enabling retainer 331 to be withdrawn. In such an embodiment, members 376 may be omitted.

FIGS. 11-13 illustrate exercise device 420, another embodiment of exercise device 20 (shown in FIGS. 1-3). Like exercise device 120, exercise device 420 includes frame 122, control interface 123, guide 124, foot links 126, and swing arms 128 (each of which are shown in FIGS. 4-6). Exercise device 320 is similar to exercise device 120 except that exercise device 320 includes connection links 430 (one of which is shown) and frame retainer 431 in lieu of connection link 130 and frame retainer 131, respectively. Although not illustrated, exercise device 420 further includes a foot link retainer substantially identical to frame retainer 431, but extending from each foot link 126 rather than frame 122. Like foot link retainer 160, the foot link retainer of exercise device 420 is configured to engage connection link 430 to operably couple connection link 430 to the associated foot link 126.

As shown by FIGS. 11-13, connection link 430 is substantially identical to connection link 130 except that connection link 430 includes end portion 454 in place of end portion 154. End portion 454 is configured to releasably connect link 432 frame retainer 431 or alternatively to connect connection link 432 the foot link retainer (not shown). End portion 454 includes spherical bearing 464, body 466, engagement members 468, plunger or piston 470 and bias member 472. Spherical bearing 364 is rotationally supported at end portion 354. Spherical bearing 364 is connected to and rotationally supports body 466.

Body 466 is secured to spherical bearing 464. In his the example illustrated, body 466 is threaded to spherical bearing a 464. In other embodiments, body 466 may be secured to spherical bearing 464 in other fashions. As shown by FIG. 12, body 466 forms bores 476, 478 which slide a bully receive piston 470. Bore 478 is enlarged so as to additionally receive bias member 472. Body 466 in further includes radially extending cavities 480 which receive engagement members 468 and permit engagement members 468 to move radially. Body 466 is further configured to be inserted into retainer 431.

Engagement members 468 comprise one or more members within cavities 480 which are movable between an extended position in which engagement members 468 partially project into from body 466 for engagement with retainer 431 and a retracted position in which a greater extent of members 468 is received within body 466, permitting body 466 to be withdrawn from retainer 431. In the example illustrated, members 468 comprise balls. In other embodiments, members 468 may comprise rods, pins or other structures.

Piston 470 comprises one or more structures configured to either inhibit or facilitate movement of members 468 between the extended positions in the retracted positions. Piston 470 is manually actuatable between a locked or retaining position or state (shown in FIG. 12) in which piston 470 retains members 468 in their extended positions and an unlocked or released position or state in which piston 470 permits members 468 to move radially inwardly to an extent such that body 466 may be withdrawn from retainer 431.

Piston 470 includes an elongate shaft 484 which terminates at a larger head 486. Shaft 484 extends from head 486 and includes recess or cavity 488. Cavity 488 is configured to sufficiently receive one or more of members 468 to permit members 468 to move to their retracted positions, permitting body 466 to be withdrawn from retainer 431. In one embodiment, cavity 48 may comprises circumferential groove. In another embodiment, cavity 468 may comprise one or more opposing indentations.

Head 486 extends from shaft 470 and is received at lease partially within cavity 472. Head 486 serves as a manual pushbutton for actuation of piston 470.

Bias member 478 resiliently biases piston 470 to its retaining state. In the example illustrated, bias member 478 comprises a compression spring captured between head 486 and body 466 within cavity 472. Depressment of head 46 against the bias force provided by member 478 moves shaft 476 downward (as seen in FIG. 12) to locate cavity 48 across from members 468, permitting members 468 to move radially inward such that body 466 may be withdrawn from retainer 431.

Retainer 431 comprises a structure coupled to frame 122 and configure to claw Paris with end portion 454 to releasably secure link 430 to frame 122. Retainer 431 comprises an elongate sleeve having an axial face 490 against which members 468 bear against when body 466 is sufficiently inserted into retainer 431 and while piston 470 is in the retaining position or state. Because retainer 431 is configured such that members 468 bear against its axial face 490, retainer 431 may omit internal grooves or channels for engaging the members 468, reducing the cost and complexity of retainer 431. In other embodiments, retainer 431 may alternatively include an internal circumferential groove or internal detents which receive members 468 when members 468 are in their extended positions.

FIGS. 14-15 illustrate exercise device 520, another embodiment of exercise device 20 (shown in FIGS. 1-3). Like exercise device 120, exercise device 520 includes frame 122, control interface 123, guide 124, foot links 126, and swing arms 128 (each of which are shown in FIGS. 4-6). Exercise device 520 is similar to exercise device 520 except that exercise device 520 includes connection links 530 (one of which is shown) and frame retainer 531 in lieu of connection link 130 and frame retainer 131, respectively. Although not illustrated, exercise device 520 further includes a foot link retainer substantially identical to frame retainer 531, but extending from each foot link 126 rather than frame 122. Like foot link retainer 160, the foot link retainer of exercise device 520 is configured to engage connection link 530 to operably couple connection link 530 to the associated foot link 126.

As shown by FIGS. 14 and 15, connection link 530 is substantially identical to connection link 130 except that connection link 530 includes end portion 554 in place of end portion 154. End portion 554 is configured to releasably connect link 530 to frame retainer 531 or alternatively to connect connection link 532 the foot link retainer (not shown). End portion 554 includes spherical bearing 564 and a shoulder or face 566. Spherical bearing 564 includes a bore 568 configured to slidably or releasably receive portions of retainer 531 to releasably connect link 530 to retainer 531 and frame 122. Face 566 comprises a surface against which retainer 531 may bear against to releasably retain link 530.

As shown by FIGS. 14 and 15, retainer 531 includes a shaft or pin 572 and a catch 574. Pin 572 comprises a structure configured to be rotationally received within bore 568 and to project through bore 568.

Catch 574 comprises one or more structures configured to at least partially wrap about or around end portion 554 so as to engage opposite sides of end portion 554 when pin 572 is received within bore 568. In the particular example illustrated, catch 574 includes a manually graspable extension 576 including a hook 578 which extends over and bears against face 566. Hook 578 is a movable between an engaged position (shown in FIG. 15) in which hook 578 bear is against face 566 to retain end portion 554 axially against retainer 531 and a disengaged position in which hook 578 is radially withdrawn from face 566, permitting end portion 554 to be lifted away from retainer 531.

In the example illustrated, catch 574 is integrally formed as part of a single unitary body out of one or more materials, such as one or more polymers, and is dimensioned so as to permit hook 578 to flex between the engaged and is engaged positions. In one embodiment, catch 574 is configured such that hook 578 is resiliently biased to or towards the engaged position such that as end portion 554 is lowered onto pin 572, hook 578 resilient flexes in a radially outward direction until face 566 is positioned below hook 578. At such point time, hook 578 resiliently returns to its natural initial shape so as to overly face 566 to capture end portion 554 and retain end portion 554. In another embodiment, hook 578 may alternatively need to be manually moved to the engaged position once end portion 554 has been lowered onto retainer 531. Catch 574 provides a relatively less complex and low-cost mechanism for releasably securing end portion 554.

FIGS. 16-17 illustrate exercise device 620, another embodiment of exercise device 20 (shown in FIGS. 1-3). Like exercise device 120, exercise device 620 includes frame 122, control interface 123, guide 124, foot links 126, and swing arms 128 (each of which are shown in FIGS. 4-6). Exercise device 620 is similar to exercise device 120 except that exercise device 620 includes connection links 630 (one of which is shown) and frame retainer 631 in lieu of connection link 130 and frame retainer 131, respectively. Although not illustrated, exercise device 620 further includes a foot link retainer substantially identical to frame retainer 631, but extending from each foot link 126 rather than frame 122. Like foot link retainer 160, the foot link retainer of exercise device 620 is configured to engage connection link 630 to operably couple connection link 630 to the associated foot link 126.

As shown by FIGS. 16 and 17, connection link 630 is substantially identical to connection link 130 except that connection link 630 includes end portion 654 in place of end portion 154. End portion 654 is configured to releasably connect link 630 to frame retainer 631 or alternatively to connect connection link 630 to the foot link retainer (not shown). End portion 654 includes spherical bearing 664, body 666, catch 668, sleeve 670 and bias member 672. Spherical bearing 664 rotationally supports body 666 relative to link 630.

Body 666 comprises one or more structures extending through spherical bearing 664. Body 666 includes an internal cavity 671 configured to receive retainer 631, a retainer abutment surface 674 abutting against retainer 631 when body 666 receives retainer 631, and opening 675 receiving catch 668, a cavity 676 receiving bias member 672 and a rounded end portion of 678 against which a person may manually press when moving sleeve 670 along axis 679. In one embodiment, body 666 is integrally formed as part of a single unitary body. Another embodiment, body 666 may be formed from multiple distinct components.

Catch 668 comprises a resiliently flexible spring formed from metal or polymeric materials. As shown by FIG. 18, catch 668 includes a flexible band 680, an inwardly extending leg 682 and a foot 684. Band 680 flexibly supports leg 682 and foot 684. Band 680 is configured so as to permit leg 682 and foot 684 to pivot about one of more axes provided by the bending or flexing band 680 between and engaged position in which foot 684 extends sufficiently radially inward so as to engage retainer 631 (as shown in FIG. 17) and a disengaged position in which leg 682 and foot 684 are sufficiently withdrawn radially outward to permit withdrawal of retainer 631 from cavity 672.

Leg 682 angularly extends from band 680 at an acute angle and is configured to more easily flex or bend in an upward and outward word direction (as seen in FIGS. 17 and 18) as compared to a downward and inward a direction (as seen FIGS. 17 and 18). Foot 684 extends from leg 682 and provides an angled surface against which retainer 681 engages when retainer 631 is inserted into body 666 and is connected to link 630.

Sleeve 670 comprises a cylindrical member extending about body 666 and over catch 675. Sleeve 670 includes an inner circumferential surface 684 and a circumferential recess 686. Sleeve 670 is manually movable between a locking state or position and a released or unlocked state or position. In the locked state or position shown in FIG. 17, surface 684 overlies catch 675 to retain leg 682 and foot 684 in the engaged position by inhibiting pivotal movement of leg 682 and foot 684 in a counter-clockwise direction (as seen in FIG. 17).

As shown by FIG. 18, when axially moved in the direction indicated by arrow 688 towards end portion 678 of body 666 to the unlocked position, recess 686 overlies catch 675 so as to permit catch 675 to pivot in a counterclockwise direction about axes provided by the flexing or bending of band 668 such that leg 682 and foot 684 may pivot to the disengaged position, permitting withdrawal of retainer 631.

Retainer 631 comprises along a post coupled to frame 122 which includes a cirque fragile channel 690 and a head portion 692. Although illustrated as being threadably secured to another shaft 694 which is joined to frame 122, retainer 631 may alternatively be secured to frame 122 in other fashions. For example, retainer 631 may alternatively be bonded, welded or directly fastened to frame 122.

During insertion of retainer 631 into cavity 672 and through spherical bearing 664, head portion 692 engages leg 682 and foot 684 to flex, bend or pivot leg 682 and foot 684 until head portion 692 is above foot 684 (as seen in FIG. 17). As such point time, foot 684 and leg 680 to resiliently return to their natural shape, causing foot 684 to be received within groove 690. As a result, retainer 631 is captured and secured within body 666, connecting frame 122 to link 630. Insertion of retainer 631 may be achieved regardless of the positioning of sleeve 670.

To disconnect link 630 from frame 122, a person, with a single hand, places end portion 678 against the person's palm or thumb while the person's fingers pull sleeve 670 in the direction indicated by 688 against spring 676 until recess 686 is positioned across from leg 682 of catch 675 as shown in FIG. 18. During withdrawal of retainer 631, head portion 692 applies forced to catch 675 causing leg 682 to bend or flex outwardly into recess 686 to the disengaged position. Overall, catch 675 provides an integrally formed member that facilitates one way insertion of retainer 631 into cavity 672 of body 666 when sleeve 670 is in either the locked state or the unlocked state, yet prevents accidental withdrawal of retainer 631 and disconnection of link 630 while sleeve 670 is in the locked state.

Although the present disclosure has been described with reference to example embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the claimed subject matter. For example, although different example embodiments may have been described as including one or more features providing one or more benefits, it is contemplated that the described features may be interchanged with one another or alternatively be combined with one another in the described example embodiments or in other alternative embodiments. Because the technology of the present disclosure is relatively complex, not all changes in the technology are foreseeable. The present disclosure described with reference to the example embodiments and set forth in the following claims is manifestly intended to be as broad as possible. For example, unless specifically otherwise noted, the claims reciting a single particular element also encompass a plurality of such particular elements.

Stowable arms

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