Exercise equipment

Abstract

The present application relates to a kind of fitness equipment, with a frame, a limb movement device and a movable chair, the limb movement device is arranged in the frame, can be used to carry out upper limb or lower limb limb movement, the movable chair is pivoted in the bottom of the frame according to a pivot axis, the pivot axis is not parallel with the front-rear axial direction, left-right axial direction and up-down axial direction of the fitness equipment;When the movable chair is located in a use position, it can support user to carry out the limb movement in sitting position in the rear of the limb movement device;When the movable chair is rotated to a idle position by the use position around the pivot axis to oblique front, user can carry out the limb movement in the area previously occupied by the movable chair, for example, carry out upper limb movement in standing position, or carry out upper limb or lower limb movement by sitting on wheelchair.

Description

TECHNICAL FIELD

[0001] The present invention relates to an exercise apparatus, and in particular to an exercise apparatus for performing upper body exercise and / or lower body exercise in a seated position. BACKGROUND

[0002] US Patent No. 7,841,969 discloses an exercise apparatus (Note: commercialized as "Matrix Krankcycle") having a frame standing on the ground and an upper body exercise device provided at a proper height position on the frame, the upper body exercise device being adapted for a user to hold left and right hand grips thereof with left and right hands respectively to perform upper body exercise with hands circling around a horizontal axis. The user can choose to perform the upper body exercise in a seated position or a standing position. If the user chooses to perform the upper body exercise in a seated position, a dedicated seat member has to be assembled to a predetermined position on the frame in a predetermined manner, with a seat portion of the seat member for supporting the buttocks positioned below and behind the two hand grips, so that the user can perform the upper body exercise in a predetermined facing position straddling the seat portion. If the user chooses to perform the upper body exercise in a standing position, the seat member has to be detached from the frame and placed elsewhere, so that the user can perform the upper body exercise in the same facing position standing behind the upper body exercise device (i.e. in the area originally occupied by the seat portion). In addition, after the seat member is detached, a user in a wheelchair can also enter the same area from behind the exercise apparatus to perform the upper body exercise. In summary, the exercise apparatus can be transformed into a first mode requiring the use of the seat member or a second mode not requiring the use of the seat member, according to the user's needs. However, the user has to disassemble and properly dispose the seat member to transform the exercise apparatus from the first mode to the second mode, and has to retrieve and reassemble the seat member from elsewhere to transform the exercise apparatus from the second mode back to the first mode. Such transformation process is somewhat inconvenient for handling the seat member, and the idle seat member in the second mode has to be placed elsewhere, usually beside the base of the frame, occupying additional floor space and possibly obstructing others.

[0003] Of course, the same problem does not only occur in the exercise apparatus of the above-mentioned type. For example, a certain exercise apparatus (commercially known as "StepOne Recumbent Stepper") produced by SCIFIT Company of the United States can be used by a user to perform leg exercise with hands and feet alternately stepping on a leg exercise device in front of the seat member, if the seat member is pulled out backwards along the track on the base of the frame and placed elsewhere, a user in a wheelchair can enter the same area from behind to perform the leg exercise. Similarly, it is not convenient to transform the use of the seat member or not. SUMMARY

[0004] To solve the above problems, the main purpose of the present application is to provide a fitness equipment for a user to perform a limb exercise, which can be transformed between a seat member using type and a seat member non-using type according to the user's limb exercise mode, and the seat member does not need to be detached and placed outside the fitness equipment when it is not used, so that the space utilization is better.

[0005] Another purpose of the present application is to provide a fitness equipment for a user to perform a limb exercise, which can be transformed between a seat member using type and a seat member non-using type according to the user's limb exercise mode, and the user can easily and quickly handle the seat member when transforming.

[0006] To achieve the above purposes, the present application provides a fitness equipment for a user to perform a limb exercise in a predetermined direction, wherein the front-to-back direction, the left-to-right direction and the up-to-down direction of the user's body during the limb exercise are defined as the front-to-back axial direction, the left-to-right axial direction and the up-to-down axial direction of the fitness equipment respectively; the fitness equipment comprises a frame body having a bottom, a limb exercise device arranged on the frame body and having at least one exercise member for the user's hand or foot to operate to perform the limb exercise, and a movable chair having a chair rod and a chair seat, wherein the chair rod has a first end with a relatively low height and a second end with a relatively high height, and the first end is pivotally connected to the bottom of the frame body about a pivot axis which is not parallel to the front-to-back axial direction, the left-to-right axial direction and the up-to-down axial direction; the chair seat is connected to the second end of the chair rod; the movable chair can be flipped about the pivot axis between a use position and a non-use position, and when the movable chair is located at the use position, the chair seat is located above the first end of the chair rod in a side view and is located behind the exercise member of the limb exercise device in a top view; when the movable chair is located at the non-use position, the chair seat is located above the first end of the chair rod in a front view and is located at the left side or the right side of the limb exercise device in a top view.

[0007] In the above technical solution of the present application, the pivot axis is located on a horizontal plane, and the acute angle between the pivot axis and the left-to-right axial direction is between 15 degrees and 75 degrees.

[0008] The flipping angle of the movable chair between the use position and the non-use position is less than 90 degrees.

[0009] The bottom of the frame body is provided with a top abutting portion above the rear of the first end of the chair rod; the chair rod has an inclined section adjacent to the first end; when the movable chair is located at the use position, the inclined section of the chair rod extends rearward and upward from the first end, and the rear side thereof abuts against the top abutting portion.

[0010] The bottom of the frame is provided with a rest portion above the obliquely forward of the first end of the chair rod; when the movable chair is in the idle position, the inclined section of the chair rod extends obliquely forward from the first end and the front side thereof abuts against the rest portion.

[0011] A locking mechanism is provided between the movable chair and the bottom of the frame, which can be transformed between a locked state and an unlocked state according to operation; the locking mechanism in the locked state can prevent the movable chair in the use position from being flipped to the idle position and prevent the movable chair in the idle position from being flipped to the use position.

[0012] The locking mechanism comprises a lock bolt, a spring, a handle, a cable, a first blocking member and a second blocking member; the lock bolt is arranged near the first end of the chair rod and can be displaced between a locked position and an unlocked position relative to the chair rod; the spring is arranged between the lock bolt and the chair rod and provides elastic force to make the lock bolt have a tendency to be displaced to the locked position; the handle is arranged near the second end of the chair rod; the cable extends along the chair rod and is connected to the handle and the lock bolt at two ends respectively, so that the handle can pull the lock bolt to the unlocked position through the cable; the first blocking member and the second blocking member are arranged at two predetermined positions near the first end of the chair rod at the bottom of the frame respectively; when the movable chair is in the use position and the lock bolt is in the locked position, the lock bolt is blocked by the first blocking member to prevent the movable chair from being flipped to the idle position; when the movable chair is in the idle position and the lock bolt is in the locked position, the lock bolt is blocked by the second blocking member to prevent the movable chair from being flipped to the use position, and at this time, the handle is located at a high position of the movable chair.

[0013] The moving member of the limb movement device can be operated by the hands of the user; the limb movement device is arranged in the frame in a position-adjustable manner and can be positioned at least between a sitting posture suitable position and a standing posture suitable position; the height of the moving member when the limb movement device is in the standing posture suitable position is higher than the height of the moving member when the limb movement device is in the sitting posture suitable position; at least when the limb movement device is in the standing posture suitable position, the movable chair can be freely flipped between the use position and the idle position without interfering with the limb movement device.

[0014] When the limb exercise device is in the standing posture applicable position and the movable chair is in the idle position, the highest part of the movable chair is higher than the lowest part of the limb exercise device.

[0015] The bottom of the frame body forms a standing area behind the first end of the chair rod, for the user to stand on both feet when performing the limb exercise in a standing posture; when the movable chair is in the use position, the seat is above the standing area.

[0016] With the above technical solution, the fitness equipment provided by the present application can be transformed between a first mode and a second mode; when the fitness equipment is transformed into the first mode, the movable chair is in the use position, allowing the user to sit on the seat thereof to perform the limb exercise; when the fitness equipment is transformed into the second mode, the movable chair is in the idle position, allowing the user to stand in the area originally occupied by the seat to perform the limb exercise (especially upper limb exercise), and / or allowing a user in a wheelchair to perform the limb exercise in the same area. In the second mode, the idle movable chair is stored in a nearby position without causing obstruction, without the need to be disassembled and placed in a place outside the fitness equipment, and the overall space utilization is better. According to the implementation selection, the user can manually flip the movable chair (seat member) between the use position and the idle position, so that the handling of the seat member is easier and faster when transforming the use mode of the fitness equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a left rear perspective view of a preferred embodiment of the present application in the first mode;

[0018] Figure 2 is a left view of a preferred embodiment of the present application corresponding to the Figure 1 state;

[0019] Figure 3 is a rear view of a preferred embodiment of the present application corresponding to the Figure 1 state;

[0020] Figure 4 is a left rear perspective view of a limb exercise device and a position adjusting device of a preferred embodiment of the present application;

[0021] Figure 5 is a right rear perspective view of a limb exercise device of the present application;

[0022] Figure 6 is a left view of a limb exercise device of the present application;

[0023] Figure 7 is a right view of a limb exercise device of the present application;

[0024] Figure 8 is a bottom view of the limb movement device of the present invention;

[0025] Figure 9 is a sectional view along the line IX-IX in Figure 6 wherein the left and right crank arms are in the same orientation;

[0026] Figure 9A and Figure 9B are enlarged views of the same portion in Figure 9 showing the clutch mechanism in the disengaged and engaged states, respectively;

[0027] Figure 10 is similar to Figure 9 but wherein the left and right crank arms are in opposite orientations differing by 180 degrees;

[0028] Figure 10A is an enlarged view of the portion of Figure 10 showing the clutch mechanism in the engaged state;

[0029] Figure 11 is a left front perspective view of a preferred embodiment of the present invention in the Figure 1 state, with all of the plastic housing of the base removed to facilitate presentation of the pivot structure at the bottom end of the chair bar;

[0030] Figure 12 is a bottom view of a preferred embodiment of the present invention in the Figure 1 state;

[0031] Figure 13 is a top view of the lower half of the apparatus (with portions of the plastic housing of the base removed) of a preferred embodiment of the present invention in the Figure 1 state, with the limb movement device outlined in phantom lines to indicate its relative position;

[0032] Figure 14 is a sectional view along the line XIV-XIV in Figure 13 ;

[0033] Figure 15 is a left rear perspective view of a preferred embodiment of the present invention in the second mode;

[0034] Figure 16 is a left side view of a preferred embodiment of the present invention in the Figure 15 state;

[0035] Figure 17 is a rear view of a preferred embodiment of the present invention in the Figure 15 state;

[0036] Figure 18 is a left side view of a preferred embodiment of the present invention in the Figure 15Figure 6 is a top view of the lower half of the apparatus in the state shown in Figure 5, with the body of the user shown in phantom outline, and with the limb movement device shown in phantom outline in its relative position;

[0037] Figure 19 Figure 1 is a left side view of a preferred embodiment of the application, as used by a person in a wheelchair. DETAILED DESCRIPTION

[0038] In order to make the objects, technical solutions, and advantages of the embodiments of the application clearer, the technical solutions of the embodiments of the application will be described below in connection with the drawings of the embodiments of the application. Obviously, the described embodiments are some but not all of the embodiments of the application. Based on the described embodiments of the application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the application.

[0039] Referring to Figures 1-3 As shown in the drawings, a preferred embodiment of the application provides a piece of exercise equipment having a frame 10 standing on the ground. The frame 10 is provided with a limb movement device 40 at an appropriate height, which can be used by a user to perform an upper limb movement. As will be described in detail below, the user can choose to perform the upper limb movement in a predetermined sitting position or standing position, and the position and direction faced by the user are the same regardless of the sitting position or standing position. The direction faced by the user and the direction faced away from the user when performing the upper limb movement correspond to the front and back of the exercise equipment, respectively. In other words, the front-to-back direction, left-to-right direction, and up-to-down direction of the user's body when performing the upper limb movement define the front-to-back axial direction Z, left-to-right axial direction X, and up-to-down axial direction Y of the exercise equipment, respectively. The exercise equipment is generally left-right symmetrical in appearance.

[0040] The frame 10 includes a base 20 stably standing on the ground and a standing portion 30 extending upward from the base 20. The base 20 mainly has a base plate 21 shaped like a rectangular plate and an inclined platform 25 fixed at the front end of the base plate 21. Figures 1-3 As shown in the drawings, the base plate 21 and the inclined platform 25 are covered by a plastic surface shell (not labeled). After removing the plastic surface shell, the base plate 21 and the inclined platform 25 are as shown in Figure 11 As shown in the drawings, the base plate 21 and the inclined platform 25 are covered by a plastic surface shell (not labeled). After removing the plastic surface shell, the base plate 21 and the inclined platform 25 are as shown in Figure 3 As shown in the drawings, the base plate 21 and the inclined platform 25 are covered by a plastic surface shell (not labeled). After removing the plastic surface shell, the base plate 21 and the inclined platform 25 are as shown in

[0041] The limb movement device 40 is arranged on the standing portion 30 of the frame 10, specifically between the top ends of the two side rods 31. After removing the outer casing 41, the actual structure is as shown inFigure 4 As shown, the limb exercise device 40 mainly has a left handle 42L and a right handle 42R for the user to grip with his left and right hands respectively, the two handles 42L, 42R can rotate along a circular motion track (e.g. a circle with a radius R1) around a first axis A1 corresponding to the left-right axis, and the rotation of the handles 42L, 42R will drive a flywheel 44 to rotate in place via a transmission mechanism 43 (to be described later) composed of chains and sprockets, etc., the circumference of the flywheel 44 is provided with an eddy current brake 45, and the user can adjust the resistance applied by the eddy current brake 45 to the flywheel 44 by using a resistance adjustment tab 46 provided between the left handle 42L and the right handle 42R; in this way, the user can stretch his hands forward to grip the handles 42L, 42R behind the limb exercise device 40, and then apply force to make the handles 42L, 42R (each forming a moving member) rotate around the first axis A1 to perform upper limb exercise of the hand rotating along the circular motion track. Figure 2

[0042] Various limb exercise devices in the prior art, including those allowing the hands or feet to move in a circular or elliptical closed track, reciprocate along a straight or curved track, or move freely without a predetermined track (e.g. pulling a rope connected to a weight block), can be appropriately applied in the present application, and the limb exercise (including upper limb exercise and lower limb exercise) in the present application is not limited to active exercise in which the user applies force to operate the moving member (e.g. handle or pedal) to move, in other words, it can also be passive exercise in which the moving member is driven to move by a motor or the like to drive the user's hands or feet to move. In addition, in other possible embodiments of the present application (no figure), the limb exercise device can have only a single moving member.

[0043] In the preferred embodiment, the limb exercise device 40 is provided in the upright portion 30 of the frame 10 in an adjustable position, and its position relative to the frame 10 can be adjusted by a position adjustment device 50, which essentially adjusts the height of the circular motion track of the handles 42L, 42R from the bottom 20 of the frame 10, so as to be able to respond to various use requirements. Specifically, as shown in Figure 4 ​As shown, a horizontal shaft 32 is lapped and locked between the top ends of the two side rods 31, the middle section of the horizontal shaft 32 is cylindrical, and its axis (hereinafter referred to as the second axis) A2 corresponds to the left-right axial direction; a rearward extending receiving seat 33 is welded on the horizontal shaft 32; the handlebars 42L, 42R of the limb movement device 40, the transmission mechanism 43, the flywheel 44, the eddy current brake 45 and the like are movably arranged on a swing frame 47, and the top front end of the swing frame 47 is pivotally connected to the middle section of the horizontal shaft 32 through two bearings 48, so that the limb movement device 40 as a whole can swing around the second axis A2; the position adjusting device 50 mainly has a linearly extendable gas lift cylinder 51, one end (rear end) of the gas lift cylinder 51 is pivotally connected to the top rear end of the swing frame 47, and the other end (front end) of the gas lift cylinder 51 is pivotally connected to the rear end of the receiving seat 33, thus the extension and retraction of the gas lift cylinder 51 and the swinging of the limb movement device 40 will inevitably occur at the same time, that is, the length of the gas lift cylinder 51 determines the position of the limb movement device 40 relative to the frame body 10; when the user pulls a pull handle 53 arranged between the left handlebar 42L and the right handlebar 42R, a gas valve control member 52 at the front end of the gas lift cylinder 51 will be pulled through a steel cable 54, so that the gas lift cylinder 51 is in a variable length state, at this time, if the user swings the limb movement device 40 in the counterclockwise direction in Figure 2 、 Figure 16 , even if the rear end of the limb movement device 40 is raised, the gas lift cylinder 51 will correspondingly extend, when the gas lift cylinder 51 is extended to the maximum length, the limb movement device 40 stops at the position as shown in Figure 16 , the circular movement track T1' of the two handlebars 42L, 42R is at the highest position; conversely, in the variable length state of the gas lift cylinder 51, if the user swings the limb movement device 40 in the clockwise direction in Figure 2 、 Figure 16 , that is, the rear end of the limb movement device 40 is lowered, the gas lift cylinder 51 will correspondingly shorten, when the gas lift cylinder 51 is shortened to the minimum length, the limb movement device 40 stops at the position as shown in Figure 2 , the circular movement track T1 of the two handlebars 42L, 42R is at the lowest position; when the user releases the pull handle 53, the gas valve control member 52 is reset, so that the gas lift cylinder 51 is fixed at the length at that time, and the limb movement device 40 is positioned at the position at that time and cannot swing.

[0044] Through the above-mentioned position adjusting function of the limb movement device 40, the user can adjust the limb movement device 40 to the most suitable position according to the posture (sitting or standing) adopted for performing the upper limb movement, and in combination with the body shape and habits of the individual, that is, the circular movement track of the handlebars 42L, 42R (equivalent to the movement track of the hands) is adjusted to the most suitable height. As shown in Figure 2 and Figure 16As shown, because the limb movement device 40 is pivoted to the upright 30 of the frame 10 along the second axis A2, when the limb movement device 40 is displaced relative to the frame 10, the center of the circular movement track of the handlebars 42L, 42R (i.e. the first axis Al) will be displaced up and down along an arc adjustment track T2 with the second axis A2 as the center. Based on the length of the air pressure rod 51 can be adjusted in steps, the user can position the center of the circular movement track at any position on the arc adjustment track T2.

[0045] In reason, the height of the handlebars 42L, 42R suitable for a user to perform upper limb movement in standing position should be higher than the height of the handlebars 42L, 42R suitable for the same user to perform upper limb movement in sitting position. For the sake of illustration, the following will be referred to as the "sitting position suitable position" of the limb movement device 40. Figure 2 Figure 16 The position of the limb movement device 40 as shown is referred to as the "standing position suitable position". Of course, Figure 2 Figure 16 The positions as shown are only the extreme representatives or one possibility of the sitting position and the standing position, not limited or suggested.

[0046] The detailed structure and movement mode of the limb movement device 40 will be described below. Please refer to Figure 4 Figure 5 As shown, the transmission mechanism 43 can be divided into a left transmission mechanism 43a and a right transmission mechanism 43b, which are respectively connected with and movable to drive the flywheel 44. The left transmission mechanism 43a is arranged between the left handlebar 42L and the flywheel 44, so that the rotation of the left handlebar 42L can drive the flywheel 44 to rotate. Similarly, the right transmission mechanism 43b is arranged between the right handlebar 42R and the flywheel 44, so that the rotation of the right handlebar 42R can drive the flywheel 44 to rotate. In this way, the user can operate the left handlebar 42L and / or the right handlebar 42R to rotate to perform the upper limb movement.

[0047] In the preferred embodiment, the left transmission mechanism 43a and the right transmission mechanism 43b are connected with each other. As shown in Figure 5 Figure 7 ​​​​As shown, the right transmission mechanism 43b has a first sprocket plate 431, a first sprocket wheel 432, a second sprocket wheel 433, and a first transmission chain 434. The first sprocket plate 431 is pivotally disposed on the right side of the swing frame 47 according to a first axis A1 and is connected with the right handlebar 42R, such that when the right handlebar 42R is rotated, the first sprocket plate 431 is rotated. The transmission mechanism 43 also has a pulley 49 and a transmission belt 491. The pulley 49 is pivotally disposed on the right side of the swing frame 47 according to a third axis A3, and the transmission belt 491 is wound around the pulley 49 and the central shaft of the flywheel 44, such that the rotation of the pulley 49 can drive the flywheel 44 to rotate. The first sprocket wheel 432 is coaxially connected with the pulley 49, and the first transmission chain 434 is wound around the first sprocket plate 431 and the first sprocket wheel 432. Thus, when the user rotates the right handlebar 42R, the first sprocket plate 431 that is rotated will drive the first sprocket wheel 432 to rotate through the first transmission chain 434, and then the pulley 49 that is rotated with the first sprocket wheel 432 will drive the flywheel 44 to rotate through the transmission belt 491, so that the user can perform the upper limb movement. The second sprocket wheel 433 is pivotally disposed on the swing frame 47 according to a fourth axis A4, is between the first sprocket plate 431 and the first sprocket wheel 432, and engages the outer side of the first transmission chain 434, such that when the first transmission chain 434 is rotated, the second sprocket wheel 433 is also rotated.

[0048] Please refer to Figure 7 As shown, when the first transmission chain 434 is rotated, the first sprocket wheel 432 and the second sprocket wheel 433 are rotated in opposite directions. For example, when the first sprocket wheel 432 is rotated in a positive direction (corresponding to the clockwise direction in Figure 7 ), the second sprocket wheel 433 is rotated in a reverse direction (corresponding to the counterclockwise direction in Figure 7 ). In more detail, the first sprocket wheel 432 is a clutch sprocket, and a one-way clutch is formed between the first sprocket wheel 432 and the pulley 49. Specifically, when the right handlebar 42R is operated to rotate in the positive direction (hereinafter referred to as positive rotation), the first sprocket wheel 432 corresponding to the positive rotation is driven to rotate the pulley 49 in the positive direction (provided that the positive rotation rate of the pulley 49 is not higher than the positive rotation rate of the first sprocket wheel 432, and the same applies below), thereby driving the flywheel 44 to rotate in the positive direction. Conversely, when the right handlebar 42R is operated to rotate in the reverse direction (hereinafter referred to as reverse rotation), the first sprocket wheel 432 corresponding to the reverse rotation is disengaged from the pulley 49, that is, the first sprocket wheel 432 corresponding to the reverse rotation does not drive or affect the rotation of the pulley 49.

[0049] When the right handlebar 42R is operated to rotate in the reverse direction, the first sprocket wheel 432 is rotated in the reverse direction, and conversely, the second sprocket wheel 433 is rotated in the positive direction. Please refer toFigure 4 、 Figure 6 , and in combination with Figure 8 , the left transmission mechanism 43a has a first transmission sprocket 492 coaxially connected with the second sprocket 433 of the right transmission mechanism 43b, a second transmission sprocket 493 coaxially fixedly connected with the pulley 49, and a second transmission chain 494 simultaneously winding around the first transmission sprocket 492 and the second transmission sprocket 493, so that when the first transmission sprocket 492 rotates, the second transmission sprocket 493 is driven to rotate via the second transmission chain 494, thereby driving the pulley 49 and the flywheel 44 to rotate. In more detail, the second sprocket 433 of the right transmission mechanism 43b is also a clutch sprocket. When the right handlebar 42R is operated to reverse, the second sprocket 433 corresponding to forward rotation is driven to rotate forward along the rotation direction by the first transmission sprocket 492, and then drives the second transmission sprocket 493 and the pulley 49 to rotate forward via the second transmission chain 494, thereby driving the flywheel 44 to rotate forward; conversely, when the right handlebar 42R is operated to forward, the second sprocket 433 corresponding to reverse rotation is disengaged from the first transmission sprocket 492, that is, the second sprocket 433 in reverse rotation does not drive or affect the rotation of the flywheel 44.

[0050] Through the above structure, when the right handlebar 42R is operated to forward, the flywheel 44 is driven to rotate by the first sprocket 432; conversely, when the right handlebar 42R is operated to reverse, the flywheel 44 is driven to rotate by the second sprocket 433. It is worth noting that no matter whether the right handlebar 42R is operated to forward (corresponding to clockwise rotation in Figure 7 ) or reverse (corresponding to counterclockwise rotation in Figure 7 ), the pulley 49 and the flywheel 44 are always driven to rotate forward, so that the user can smoothly and randomly change between forward and reverse when operating the right handlebar 42R.

[0051] As shown in Figure 4 and Figure 6 , the left transmission mechanism 43a further has a second chain disc 435, a third sprocket 436, a fourth sprocket 437, and a third transmission chain 438. The second chain disc 435 is opposite to the first chain disc 431, that is, the second chain disc 435 is pivotally arranged on the left side of the swing frame 47 according to the first axis A1 and is connected with the left handlebar 42L, so that when the left handlebar 42L rotates, the second chain disc 435 is driven to rotate; the third sprocket 436 is coaxially connected with the pulley 49 and leans against the outside of the second transmission sprocket 493 (as shown in Figure 4 in combination with Figure 8(As shown); the third drive chain 438 simultaneously wraps around the second chain disc 435 and the third sprocket 436. Therefore, when the user turns the left handlebar 42L, the rotating second chain disc 435 drives the third sprocket 436 to rotate via the third drive chain 438. Furthermore, the pulley 49, which rotates with the third sprocket 436, drives the flywheel 44 to rotate via the drive belt 491, allowing the user to perform the aforementioned upper limb movements. Figure 6 As shown, the fourth sprocket 437 is pivotally mounted on the swing frame 47 along the fourth axis A4. It is positioned between the second chain disc 435 and the third sprocket 436 and engages with the outer edge of the third drive chain 438, so that rotation of the third drive chain 438 also drives the fourth sprocket 437 to rotate. Furthermore, the fourth sprocket 437 is coaxially connected to the first drive sprocket 492 and rests against the outer side of the first drive sprocket 492 (e.g., ...). Figure 4 Matching Figure 8 (As shown).

[0052] Please see Figure 6 As shown, when the third drive chain 438 rotates, it drives the third sprocket 436 and the fourth sprocket 437 to rotate in opposite directions. For example, when the third sprocket 436 rotates clockwise (corresponding to...), the third sprocket 436 rotates clockwise (corresponding to...). Figure 6 When the fourth sprocket 437 rotates counterclockwise (corresponding to the counterclockwise rotation), it will rotate in the opposite direction (corresponding to the counterclockwise rotation). Figure 6 (rotating clockwise). More specifically, the third sprocket 436 and the fourth sprocket 437 are also clutch sprockets. When the left handlebar 42L is operated to rotate forward, the third sprocket 436, which is driven to rotate forward accordingly, can push the pulley 49 to rotate forward as well, thereby driving the flywheel 44 to rotate forward. Conversely, when the left handlebar 42L is operated to rotate in reverse, the third sprocket 436, which is driven to rotate in reverse, will disengage from the pulley 49. In other words, the rotating third sprocket 436 will not drive or affect the rotation of the pulley 49.

[0053] When the left handlebar 42L is reversed, the third sprocket 436 will also reverse, while conversely, the fourth sprocket 437 will rotate clockwise. Please refer to [link / reference]. Figure 4 and Figure 6 When the left handlebar 42L is reversed, the fourth sprocket 437, which is driven to rotate forward, can push the first transmission sprocket 492 to rotate forward together with it. Then, through the second transmission chain 494, the second transmission sprocket 493 and the pulley 49 rotate forward, thereby driving the flywheel 44 to rotate forward. Conversely, when the left handlebar 42L is reversed, the fourth sprocket 437, which is driven to rotate backward, will disengage from the first transmission sprocket 492. In other words, the fourth sprocket 437, which rotates backward, will not drive or affect the rotation of the flywheel 44.

[0054] When the left handlebar 42L is operated to rotate forward, the flywheel 44 is rotated by the third sprocket 436. Conversely, when the left handlebar 42L is operated to rotate backward, the flywheel 44 is rotated by the fourth sprocket 437. It is worth noting that no matter whether the left handlebar 42L is operated to rotate forward (corresponding to the counterclockwise rotation in Figure 6 ) or backward (corresponding to the clockwise rotation in Figure 6 ), the pulley 49 and the flywheel 44 are always rotated forward, so that the user can smoothly and randomly change the rotation direction between forward and backward when operating the left handlebar 42L.

[0055] In the preferred embodiment, the flywheel 44 is arranged to provide a motion resistance for the user to perform the upper limb movement. Since the flywheel 44 is always rotated in the forward direction, the user can operate the left handlebar 42L and the right handlebar 42R to rotate forward or backward, and can randomly and smoothly change the rotation direction.

[0056] Figure 9 is a sectional view along the IX-IX section line in Figure 6 , for showing a crank mechanism 42 of the limb movement device 40 in detail. As shown in the figure, the crank mechanism 42 comprises a crank shaft assembly 421, and a left crank arm 422a and a right crank arm 422b connected to opposite ends of the crank shaft assembly 421 respectively. The crank shaft assembly 421 is pivotally arranged on the swing frame 47 according to a first axis Al through a plurality of bearings 423. The left handlebar 42L is connected to the tail end of the left crank arm 422a away from the crank shaft assembly 421, and the right handlebar 42R is connected to the tail end of the right crank arm 422b away from the crank shaft assembly 421. The user can operate the left handlebar 42L and the right handlebar 42R to rotate the left crank arm 422a and the right crank arm 422b, so that the crank shaft assembly 421 is correspondingly rotated.

[0057] The crank shaft assembly 421 has a left crank shaft 424a, a right crank shaft 424b, and a central shaft 425 penetrating through the centers of the left crank shaft 424a and the right crank shaft 424b. The inner end of the left crank shaft 424a is pivotally arranged on the swing frame 47 through a bearing 423, and the outer end is fixedly connected to the left crank arm 422a. The second sprocket 435 is coaxially fixedly connected to the left crank shaft 424a, so that the left crank shaft 424a is rotated together with the second sprocket 435. Symmetrically, the inner end of the right crank shaft 424b is pivotally arranged on the swing frame 47 through a bearing 423, and the outer end is fixedly connected to the right crank arm 422b. The first sprocket 431 is coaxially fixedly connected to the right crank shaft 424b, so that the right crank shaft 424b is rotated together with the first sprocket 431.

[0058] In this preferred embodiment, the relative positions of the left handlebar 42L and the right handlebar 42R can be adjusted to configure them to be in opposite or the same orientation. For example, Figure 9 The left handlebar 42L and right handlebar 42R are configured in the same orientation; in other words, the left crank arm 422a and right crank arm 422b extend radially in the same direction from a common axis, and their angular positions are the same. In contrast, Figure 10 The left handlebar 42L and the right handlebar 42R are configured in opposite orientations. In other words, the left crank arm 422a and the right crank arm 422 extend radially from a common axis in opposite directions, with their angular positions differing by 180 degrees.

[0059] like Figure 9 Matching Figure 9A and Figure 9B As shown, the left crankshaft 424a and the right crankshaft 424b can be engaged or disengaged through a clutch mechanism, allowing the left handlebar 42L and the right handlebar 42R to rotate synchronously or independently. Furthermore, the relative positions of the left crank arm 422a and the right crank arm 422b can be adjusted. Figure 9A and Figure 9B As shown, the clutch mechanism is located between the left crankshaft 424a and the right crankshaft 424b of the crankshaft assembly 421, and has a block 426, a first groove 427, and a second groove 428. The first groove 427 is located at the inner end of the left crankshaft 424a opposite to the left crank arm 422a, and the second groove 428 is located at the inner end of the right crankshaft 424b opposite to the right crank arm 422b. The shape and size of the block 426, the first groove 427, and the second groove 428 are matched so that the block 426 can be completely fitted into the first groove 427 (e.g., ...). Figure 9A (as shown), or the right half can be embedded into the second slot 428 (as shown). Figure 9B As shown, the left half is still embedded in the first groove 427 at this time.

[0060] The central shaft 425 can be axially displaced at the center of the left crankshaft 424a and the right crankshaft 424b. The insert 426 is fixed to the middle portion of the central shaft 425, such that the axially displaced central shaft 425 will cause the insert 426 to axially displace between the first groove 427 and the second groove 428. Neither the first groove 427 nor the second groove 428 are circular holes; for example, they may be rectangular or polygonal holes. Correspondingly, the cross-section of the insert 426 is not circular, but rather matches the cross-sectional shape of the grooves 427 and 428, such as rectangular or polygonal. The insert 426 can be moved between an engaged position and a disengaged position by the central shaft 425. When the insert 426 is in the disengaged position, such as... Figure 9AAs shown, the insert 426 is completely accommodated within the first slot 427, so that the left crankshaft 424a and the right crankshaft 424b are not connected. Therefore, the left crankshaft 424a and the right crankshaft 424b can rotate independently, that is, the left handlebar 42L and the right handlebar 42R can rotate independently. When the insert 426 is in the engaged position, as... Figure 9B As shown, the left half of the insert 426 is engaged in the first groove 427, and the right half is engaged in the second groove 428. Therefore, the left crankshaft 424a and the right crankshaft 424b will rotate synchronously. In other words, the left handlebar 42L and the right handlebar 42R will rotate synchronously. Through the above method, the left crank arm 422a and the right crank arm 422b can be locked in a predetermined relative position (e.g., 0 degrees or 180 degrees apart) by the clutch mechanism for synchronous rotation.

[0061] Please see Figure 9 and Figure 10 As shown, the central shaft 425 can be operated to move axially, thereby moving the insert 426 between an engaged position and a disengaged position. A ball-shaped handle can be provided at each of the two opposite ends of the central shaft 425 so that the user can push or pull the central shaft 425 to adjust the relative positions of the left crank arm 422a and the right crank arm 422b, for example, as... Figure 9 Matching Figure 9B As shown, the left crank arm 422a and the right crank arm 422b are configured in the same orientation, or, as... Figure 10 Matching Figure 10A As shown, the left crank arm 422a and the right crank arm 422b are configured in opposite orientations. Furthermore, a magnet 429 is provided inside the first groove 427 of the left crankshaft 424a and the second groove 428 of the right crankshaft 424b, respectively. The magnet 429 can appropriately attract the insert 426 to the disengaged position (e.g., ...). Figure 9A (as shown) or engagement position (e.g.) Figure 9B , Figure 10A (As shown), to prevent accidental displacement of the insert 426 and the central shaft 425, and also to sense the relative orientation of the left and right crank arms 422a and 422b, such as Figure 9B and Figure 10A The differences are shown.

[0062] Please refer to the following: Figures 1-3 As shown, a movable chair 60 is provided at the bottom 20 of the frame 10. The movable chair 60 has a chair post 61 and a seat 69. The chair post 61 is made of metal tubing and has a relatively lower first end 62 and a relatively higher second end 63. The post includes an inclined section 65 adjacent to the first end 62, a straight section 67 adjacent to the second end 63, and a curved section 66 between the inclined section 65 and the straight section 67. Please refer to the accompanying documentation. Figures 11-13The first end 62 of the chair rod 61 is welded with a shaft cylinder 64, and is pivoted at the bottom 20 of the frame body 10, specifically at the width central position of the chassis framework 21', and adjacent to the rear edge of the inclined platform 25, according to the central axis (hereinafter referred to as the pivot axis) A5 of the shaft cylinder 64. The pivot axis A5 is not parallel to the front-rear axial direction Z, the left-right axial direction X and the up-down axial direction Y of the fitness equipment. In the preferred embodiment, the pivot axis A5 is located on a horizontal plane (i.e. the X-Z plane), which is a horizontal line extending from the left rear to the right front, and the acute angle θ between the pivot axis A5 and the left-right axial direction X of the fitness equipment is 30 degrees (see Figure 12 According to the implementation selection, the acute angle θ can be between 15 degrees and 75 degrees. In other possible embodiments of the present application (not shown), the pivot axis A5 is not a horizontal line, for example, the right end of the axis is higher than the left end, or vice versa. The chair seat 69 is fixed to the second end 63 of the chair rod 61, for supporting the hips of the user in a sitting position to perform upper limb exercise.

[0063] The movable chair 60 can rotate relative to the frame body 10 around the pivot axis A5 within a limited range, specifically, it can be flipped between a use position as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 13 and an idle position as shown in Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 . When the movable chair 60 is located at the use position, the chair seat 69 is located above the rear of the first end 62 of the chair rod 61 in a side view (see Figure 2 , and the chair seat 69 is located behind the left handle 42L and the right handle 42R of the limb exercise device 40 in a top view (see Figure 13 . When the movable chair 60 is located at the idle position, the chair seat 69 is located above the front of the first end 62 of the chair rod 61 in a side view (see Figure 16 , and the chair seat 69 is located to the left of the limb exercise device 40 in a top view (see Figure 18 . Because the pivot axis A5 in the embodiment extends from the left rear to the right front, the movable chair 60 is flipped from the use position to the idle position to the left front, and the chair seat 69 is located to the left of the limb exercise device 40 after the flipping. Of course, the present application can also be implemented such that the pivot axis A5 extends from the right rear to the left front, so that the movable chair 60 is flipped from the use position to the idle position to the right front, and the chair seat 69 is located to the right of the limb exercise device 40 after the flipping.

[0064] The width central position of the chassis 21 of the frame body 10 is provided with a boss 22, and the main body thereof is a boss framework 22' composed of metal components (see Figure 11The front end of the pedestal frame 22' is locked with a first rubber block 23, which is located above and behind the first end 62 of the chair bar 61. When the movable chair 60 is in the use position, the inclined section 65 of the chair bar 61 extends rearward and upward from the first end 62, and the rear side of the lower half of the inclined section 65 (provided with the reinforcing plate 68) abuts against the first rubber block 23. Meanwhile, the flat section 67 of the chair bar 61 extends horizontally from the front, like a cantilever beam, to support the seat 69 above and behind the first rubber block 23. The first rubber block 23 forms a stopper, which prevents the movable chair 60 from being flipped backward when it is in the use position. When a user sits on the seat 69 and exerts a torque to flip the movable chair 60 backward, most of the force can be absorbed by the first rubber block 23, reducing the load on the pivot structure of the first end 62 of the chair bar 61.

[0065] The inclined platform 25 provided at the front end of the base 21 has an inclined surface 26 extending upward and forward. The inclined surface 26 has a shallow groove 27 extending upward and forward from the central position of the width of the rear edge of the inclined surface 26. The rear end (bottom end) of the shallow groove 27 is locked with a second rubber block 28, forming a resting portion. When the movable chair 60 is in the idle position, the inclined section 65 of the chair bar 61 extends leftward and forward from the first end 62, and the front side of the inclined section 65 abuts against the shallow groove 27 (especially the portion close to the first end 62 abuts against the second rubber block 28), preventing the movable chair 60 from being flipped forward. In the preferred embodiment, the movable chair 60 is flipped by an angle less than 90 degrees between the use position and the idle position.

[0066] Because the center of gravity of the movable chair 60 (and the seat 69 for bearing the weight of a user) is located above and behind the first end 62 as the pivot point when the movable chair 60 is in the use position, the movable chair 60 will not be flipped forward unless it is subjected to a specific direction and sufficient external force. Similarly, because the center of gravity of the movable chair 60 is located above and in front of the first end 62 when the movable chair 60 is in the idle position, the movable chair 60 will not be flipped backward unless it is subjected to a specific direction and sufficient external force.

[0067] Even so, to further enhance the safety and stability, in the preferred embodiment, a locking mechanism 70 (see Fig. 1) is provided between the movable chair 60 and the bottom 20 of the frame 10. The locking mechanism 70 is a locking mechanism for locking the movable chair 60 in the idle position. Figure 14The locking mechanism 70 can be shifted between a locked state and an unlocked state by user's operation. When the locking mechanism 70 is in the locked state, the movable chair 60 in the use position cannot be flipped to the idle position, and the movable chair 60 in the idle position cannot be flipped to the use position. Specifically, the locking mechanism 70 comprises a latch 71, a spring 72, a handle 73, a cable 74, a first blocking member 75 and a second blocking member 76. The latch 71 is arranged near the first end 62 of the chair rod 61 and can be displaced between a locked position and an unlocked position relative to the chair rod 61. The spring 72 is arranged between the latch 71 and the chair rod 61 and provides a spring force to make the latch 71 have a tendency to be displaced to the locked position. For example, the spring force of the spring 72 in the locked position pushes the latch 71 downward, i.e. makes the tail end of the latch 71 protrude. Figure 14 The handle 73 is pivotally arranged near the second end 63 of the chair rod 61, in this embodiment, at the bottom rear end of the seat 69. The cable 74 extends along the chair rod 71 (hollow pipe) and is connected to the handle 73 and the latch 71 at two ends respectively, so that the handle 73 can be pulled to pull the latch 71 to the unlocked position through the cable 74, for example, pulled upward, i.e. makes the tail end of the latch 71 retract. Figure 14 The first blocking member 75 and the second blocking member 76 are both metal members and are welded at two predetermined positions near the first end 62 of the chair rod 61 of the chassis frame 21'. When the movable chair 60 is in the use position and the latch 71 is in the locked position, the rear side of the tail end of the latch 71 is blocked by the first blocking member 75, so that the movable chair 60 cannot be flipped to the idle position. When the movable chair 60 is in the idle position and the latch 71 is in the locked position, the bottom side of the tail end of the latch 71 is blocked by the second blocking member 76, so that the movable chair 60 cannot be flipped to the use position.

[0068] Based on the above structure, the fitness equipment of the preferred embodiment can be used by the user to perform upper limb exercise in a predetermined sitting position or standing position. If the user wants to perform upper limb exercise in a sitting position, the user can first place the movable chair 60 in the use position, sit on the seat 69 and face forward, then adjust the limb exercise device 40 to a suitable position according to the user's body shape and habit, for example, a suitable position for a sitting position, so that the fitness equipment as a whole assumes a mode as shown in Figures 1-3 i.e. a first mode, and then the user can operate the handlebars 42L, 42R located at a suitable distance in front of the chest to perform upper limb exercise while sitting. During the process, the user's legs are located on the left and right sides of the chair rod 61 respectively, and the user's feet can be stepped on the inclined surface 26 of the inclined platform 25. Conversely, if the user wants to perform upper limb exercise in a standing position, the user must first clear the area occupied by the seat 69 when the user is in a sitting position, i.e. first place the movable chair 60 in the idle position, then stand on the chassis 21 and face forward, and then adjust the limb exercise device 40 to a suitable position according to the user's body shape and habit, for example, a suitable position for a standing position, so that the fitness equipment as a whole assumes a mode as shown inFigures 15-17 The second type of operation is shown in which the user stands behind the handles 42L, 42R to perform upper body exercises. The base 21 is provided with a standing area 24 behind the first end 62 of the chair bar 61 for the user to stand on when performing upper body exercises in a standing position (Note: The user's feet are usually slightly apart, for example, about the width of the shoulders, and can be staggered according to personal preference). When the movable chair 60 is in the use position, the seat 69 is above the standing area 24, that is, the user cannot comfortably stand behind the handles 42L, 42R to perform upper body exercises without moving the movable chair 60 out of the use position.

[0069] The exercise apparatus can also be used by a user who is in a wheelchair and cannot stand up to perform upper body exercises. In this case, the movable chair 60 must first be moved to the idle position, and then the user advances the wheelchair from behind the exercise apparatus onto the base 21, with the wheels of the wheelchair slightly sunk into the recesses 29 on the left and right sides of the base 21. If the wheelchair itself has a brake device, the wheels are further locked to prevent the wheelchair from sliding forward and backward. Then, the limb exercise device 40 is adjusted to an appropriate position, for example, a sitting position, so that the exercise apparatus as a whole appears as shown in Figure 19 The second type of operation is shown in which the user stands behind the handles 42L, 42R to perform upper body exercises. The base 21 is provided with a standing area 24 behind the first end 62 of the chair bar 61 for the user to stand on when performing upper body exercises in a standing position (Note: The user's feet are usually slightly apart, for example, about the width of the shoulders, and can be staggered according to personal preference). When the movable chair 60 is in the use position, the seat 69 is above the standing area 24, that is, the user cannot comfortably stand behind the handles 42L, 42R to perform upper body exercises without moving the movable chair 60 out of the use position.

[0070] In another possible embodiment of the present application (not shown), the bottom of the frame does not have a portion similar to the base, or at least the left and right sides of the base, when the user performs upper body exercises in a standing position, the user's feet are standing on the ground, and when the user in a wheelchair performs upper body exercises, the wheels of the wheelchair are also on the ground, unlike the previous example, which are on the bottom of the frame (base).

[0071] In the preferred embodiment, the user must turn the handle 73 provided at the second end 63 of the chair rod 61 to retract the tail end of the lock bolt 71 provided at the first end 62 of the chair rod 61 from the first blocking member 75 or the second blocking member 76, i.e. to change the locking mechanism 70 from the locked state to the unlocked state, before the movable chair 60 can be flipped. When the movable chair 60 is in the use position, the seat surface of the seat 69 faces upward, and the flat section 67 of the chair rod 61 extends from front to back at the bottom side of the seat 69, so that the handle 73 corresponds to the rear end of the bottom of the seat 69, allowing the user to easily reach and flip the movable chair 60. When the movable chair 60 is in the idle position, the seat surface of the seat 69 faces forward, and the flat section 67 of the chair rod 61 extends from bottom to top at the rear side of the seat 69, so that the handle 73 corresponds to the top of the movable chair 60, allowing the user to easily reach and flip the movable chair 60.

[0072] Before flipping the movable chair 60, the user may need to raise the rear end of the limb movement device 40 to a certain height to avoid collision between the movable chair 60 and the limb movement device 40, especially the left handle 42L, during the flipping process. In other words, at least when the limb movement device 40 is in the standing position, the movable chair 60 can be freely flipped between the use position and the idle position without interfering with the limb movement device 40. As shown in Figure 16 When the limb movement device 40 is in the standing position and the movable chair 60 is in the idle position, the highest part of the movable chair 60 is higher than the lowest part of the limb movement device 40. Of course, the relative positions and movement ranges of the movable chair 60 and the limb movement device 40 can be appropriately set to completely avoid collision. In other possible embodiments of the present application (not shown), the limb movement device for upper limb movement is fixed at a predetermined height, and the user can use it while sitting or standing without much problem. In addition, the movable chair can be designed to have an adjustable seat height.

[0073] The reader should understand that the technical focus of the present application is the handling of the seat member when the user performs limb movement with or without the seat member. Although the limb movement device in the preferred embodiment is only for upper limb movement, the limb movement device in the present application can also be for lower limb movement, or a device that allows both upper and lower limb movement. The second type of fitness equipment in the present application (i.e. the type in which the movable chair is in the idle position) is designed to allow the user to perform the provided upper limb movement in a standing position, or to allow the user sitting in a wheelchair to perform the provided upper limb and / or lower limb movement.

[0074] From the above description, the fitness equipment of the present application can be transformed between the first mode of using the seat member and the second mode of not using the seat member according to the way the user performs the limb movement, and when the user performs the transformation manually, the treatment of the seat member (i.e. the movable chair) is only to turn it between the use position and the idle position, which is relatively simple and fast. According to the implementation selection, the present application can also use the electric mechanism to drive the movable chair to turn (and drive the limb movement device to lift) so as to transform the fitness equipment between the two modes. Regardless of how, when the seat member in the present application is idle, it does not need to be detached and placed outside the fitness equipment, and the overall space utilization is better.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the embodiments or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and protection scope of the technical solutions of the embodiments of the present application.

Claims

1. An exercise apparatus, capable of allowing a user to perform a limb movement in a predetermined orientation, the front-to-back, left-to-right and top-to-bottom directions of the user's body when performing the limb movement defining the front-to-back, left-to-right and top-to-bottom axes of the exercise apparatus, respectively, the exercise apparatus comprising: a frame having a bottom portion; a limb movement device disposed on the frame and having at least one movement member capable of being operated by the user's hand or foot to perform the limb movement; and characterized in that further comprising: a movable chair having a chair stem and a chair seat, the chair stem having a first end being relatively lower and a second end being relatively higher, and being pivotally connected to the bottom portion of the frame at the first end about a pivot axis, the pivot axis being non-parallel to the front-to-back, left-to-right and top-to-bottom axes; the chair seat being connected to the second end of the chair stem; the movable chair being capable of being flipped about the pivot axis between a use position and a rest position, when the movable chair is in the use position, the chair seat is located above and rearward of the first end of the chair stem as viewed from the side, and the chair seat is located rearward of the movement member of the limb movement device as viewed from the top; when the movable chair is in the rest position, the chair seat is located above and forward of the first end of the chair stem as viewed from the side, and the chair seat is located on the left side or the right side of the limb movement device as viewed from the top.

2. The exercise apparatus of claim 1 wherein: the pivot axis is located on a horizontal plane, and the acute angle between the pivot axis and the left-to-right axis is between 15 degrees and 75 degrees.

3. The exercise apparatus of claim 1 wherein: the flipping angle of the movable chair between the use position and the rest position is less than 90 degrees.

4. The exercise apparatus of claim 1 wherein: the bottom portion of the frame is provided with a top abutting portion above and rearward of the first end of the chair stem; the chair stem is provided with an inclined section adjacent to the first end; when the movable chair is in the use position, the inclined section of the chair stem extends upward and rearward from the first end, and the rear side of the inclined section abuts against the top abutting portion.

5. The exercise apparatus of claim 4 wherein: the bottom portion of the frame is provided with a resting portion above and obliquely forward of the first end of the chair stem; when the movable chair is in the rest position, the inclined section of the chair stem extends obliquely upward and forward from the first end, and the front side of the inclined section abuts against the resting portion.

6. The exercise apparatus of claim 1 wherein: a locking mechanism is provided between the movable chair and the bottom portion of the frame, the locking mechanism being capable of being switched between a locked state and an unlocked state by operation, the locking mechanism in the locked state preventing the movable chair in the use position from being flipped toward the rest position, and preventing the movable chair in the rest position from being flipped toward the use position.

7. The exercise apparatus of claim 6 wherein: The locking mechanism comprises a lock bolt, a spring, a handle, a cable, a first blocking member and a second blocking member; the lock bolt is arranged near the first end of the chair rod and is capable of moving relative to the chair rod between a locking position and an unlocking position; the spring is arranged between the lock bolt and the chair rod and provides a spring force to make the lock bolt have a tendency to move to the locking position; the handle is arranged near the second end of the chair rod; the cable extends along the chair rod and has two ends connected to the handle and the lock bolt respectively, so that pulling the handle can pull the lock bolt to the unlocking position through the cable; the first blocking member and the second blocking member are arranged at two predetermined positions near the first end of the chair rod at the bottom of the frame body; when the movable chair is in the use position and the lock bolt is in the locking position, the lock bolt is blocked by the first blocking member so that the movable chair cannot be turned to the idle position; when the movable chair is in the idle position and the lock bolt is in the locking position, the lock bolt is blocked by the second blocking member so that the movable chair cannot be turned to the use position, and at this time, the handle is located at a high position of the movable chair.

8. The exercise apparatus of claim 1 wherein: The moving member of the limb movement device can be operated by the hands of the user; the limb movement device is arranged in the frame body in a position-adjustable manner and can be positioned at least between a sitting position suitable position and a standing position suitable position; the height of the moving member when the limb movement device is in the standing position suitable position is higher than the height of the moving member when the limb movement device is in the sitting position suitable position; at least when the limb movement device is in the standing position suitable position, the movable chair can be freely turned between the use position and the idle position without interfering with the limb movement device.

9. The exercise apparatus of claim 8 wherein: When the limb movement device is in the standing position suitable position and the movable chair is in the idle position, the highest part of the movable chair is higher than the lowest part of the limb movement device.

10. The exercise apparatus of claim 8 wherein: The bottom of the frame body forms a standing area behind the first end of the chair rod, for the user to stand on when performing the limb movement in a standing position; when the movable chair is in the use position, the seat is located above the standing area.

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