CN108721829A - Folding exercise chair for resistance training - Google Patents

Abstract

A folding exercise chair for resistance training comprising: a collapsible chair frame, a pair of resistance mechanisms, and a first padded rail. The foldable chair frame further comprises: a seat and a height adjustable back. The height adjustable chair back is a component which can enable a user to adjust the height of the back frame of the folding chair frame. The first spacer rail is coupled to the foldable frame relative to the seat for supporting the back of the user for more comfortable movement by the user. The pair of resistance mechanisms are positioned at two sides of the foldable chair frame and are used for implementing resistance exercise training.

Description

Folding exercise chair for resistance training

technical field

The present invention relates to equipment for resistance training, in particular to an exercise chair which has a plurality of mechanisms for resistance training and can be used for various resistance training exercises.

Background technique

Traditional gym equipment is usually only capable of single training for individual muscles, and is often designed with high impact on the body, which can injure joints and ligaments. Although training against gravity is an effective way to strengthen muscles, conventional fitness equipment usually has a limited range of motion when the user performs strength and resistance training.

Contents of the invention

Aiming at the shortcomings of the above-mentioned existing fitness equipment, the present invention provides a whole-body exercise machine, which can perform more than fifty kinds of fitness training in a sitting or standing posture. The invention can be used at home or in a health club, and can be used indoors or outdoors. The present invention is a fitness equipment designed for people who want to have a stronger body and a more graceful waist. Moreover, the present invention can reduce body weight in a short time. People of all ages can use the invention in a comfortable and safe manner. The invention can be operated in a small space and is easy to store.

The present invention is a kind of brand-new fitness exercise device. The unique design of the invention allows the user to easily and conveniently train each muscle group, so as to achieve the effects of strengthening muscles and burning calories. The present invention is a kind of safe and comfortable body-building equipment, which uses two low-tension ropes or cables to carry out body-building training in sitting or standing positions. The present invention is a convenient solution for those who want to refine their muscles, strengthen their bodies and sculpt their bodies. The present invention can use the least time to achieve the greatest training effect. The invention allows various users to achieve fitness goals without using complex equipment.

Description of drawings

Fig. 1 is a perspective view of the present invention.

Figure 2 is a front view of the present invention.

Figure 3 is a rear view of the present invention.

Fig. 4 is a left side view of the present invention.

5 is a perspective view illustrating an upper bracket and a plurality of upper pulleys of a first alternative embodiment of the present invention.

6 is a perspective view illustrating a lower bracket and a plurality of lower pulleys of a first alternative embodiment of the present invention.

Figure 7 is a perspective view illustrating a second alternative embodiment of the present invention, the resistance mechanism using a torque recovery spool.

8 is a perspective view illustrating a second alternative embodiment of the torque recovery reel and the first reel tubular connection mechanism of the present invention.

9 is a perspective view illustrating a front pulley, a rear pulley, a second reel tube linkage mechanism, and a third reel tube linkage mechanism according to a second alternative embodiment of the present invention.

FIG. 10 is a perspective view illustrating the torque recovery reel and the first reel pivot connection mechanism according to the third alternative embodiment of the present invention.

11 is a perspective view illustrating a front pulley, a rear pulley, a second reel pivot connection mechanism, and a third reel pivot connection mechanism according to a third alternative embodiment of the present invention.

12 is a perspective view illustrating a torque recovery reel and a first reel clamping and connecting mechanism according to a fourth alternative embodiment of the present invention.

13 is a perspective view illustrating a front pulley, a rear pulley, a second reel clamping coupling mechanism, and a third reel clamping coupling mechanism according to a fourth alternative embodiment of the present invention.

Description of main component symbols:

1 foldable chair frame

2 seats

3 bases

4 seat cushions

5 handles

6 height adjustable backrest

7 First telescoping tube

8 Second telescoping tube

9 Connection handle

10 First Architecture Components

11 Second Architecture Components

12 connecting rod

13 Left resistance mechanism

14 upper bracket

15 upper pulley

16 lower bracket

17 lower pulley

18 resistance bands

19 belt body

20 upper gear

21 upper eye hole

22 down block

23 lower eye socket

24 Torque recovery roller

25 cables

26 Front Roller Pulley

27 rear scroll bar pulley

28 Scroll bar eyelets

29 Right resistance mechanism

30 Pad crossbar

31 Upper tube connection mechanism

32 down tube linkage mechanism

33 Upper pivot mechanism

34 lower pivot mechanism

35 The first rolling bar tube type connection mechanism

36 The second rolling bar tube type connection mechanism

37 The third rolling bar tube type connection mechanism

38 The first scroll bar pivot connection mechanism

39 The second scroll bar pivot connection mechanism

40 The third scroll bar pivot connection mechanism

41 The first rolling bar clamping and connecting mechanism

42 fixed jaws

43 Movable jaws

44 The second rolling bar clamping and connecting mechanism

45 fixed jaws

46 Movable jaws

47 The third rolling bar clamping and connecting mechanism

48 fixed jaws

49 Movable Jaws

50 auxiliary resistance mechanism

51 front pulley

52 rear pulley

53 resistance bands

54 front block

55 front eye hole

56 Backstop

57 rear eye socket

58 Front pedal

59 rear pedal

60 front support bar

61 rear support bar

62 crossbar

63 Second pad crossbar

64 Scroll bar stop

Detailed ways

First of all, it should be specifically stated that the illustrations used in this specification are only used to illustrate some embodiments of the present invention, and the scope of the present invention is not limited by these illustrations.

Please refer to Figure 1 to Figure 13. The folding exercise chair for resistance training of the present invention uses pulleys, resistance bands, and recyclable cable rolling bars to allow users to perform various fitness exercises. The present invention is designed as a strength exercise training system, allowing users to perform strength exercise training in a sitting or standing posture. In order to achieve the above object, the present invention installs the pulley at a position where the user can exercise independent muscle groups. For example, a user can sit on the invention, strap a resistance band around his ankle, and straighten his foot to exercise his quadriceps. The user can also stand on the invention with the resistance bands tied around his ankles and lift his feet off his knees to exercise his hamstrings. When the present invention is not in use, the user can fold the present invention for convenient storage.

Please refer to Figure 1 to Figure 4. To achieve the above functions, the present invention includes: a foldable chair frame 1 , a left resistance mechanism 13 , a right resistance mechanism 29 , and a first pad cross bar 30 . Foldable chair frame 1 is as basic structure of the present invention, and all the other parts of the present invention are all installed on it. The foldable chair frame 1 further includes: a chair seat 2 and a height-adjustable chair back 6 . The height-adjustable chair back 6 is the back support structure of the foldable chair frame 1 , and the user can extend or shorten the height-adjustable chair back 6 as required, and/or adjust the position of the height-adjustable chair back 6 . The first padded crossbar 30 is a padded pole to reinforce the human factors engineering design of the present invention. For this purpose, the first cushion rail 30 is perpendicular to the height-adjustable chair back 6, so that the first cushion rail 30 can support the user's back. A preferred embodiment of the first padded rail 30 is a pole with foam rubber rollers running along the length of the pole to provide a comfortable back rest for the user. The first cushion rail 30 and the seat seat 2 face each other along the height-adjustable seat back 6 . Thus, the seat 2 can support the user's bottom, and the first cushion rail 30 can support the user's back. Both the left resistance mechanism 13 and the right resistance mechanism 29 are a combination, which use pulleys, resistance bands, and retrievable cable rollers to allow users to perform various resistance training. For this purpose, the left resistance mechanism 13 is installed on one side of the foldable chair frame 1 . Thus, the left resistance mechanism 13 can be used to exercise the muscle groups on the left side of the body. The right resistance mechanism 29 is installed on the other side of the foldable chair frame 1 relative to the left resistance mechanism 13. Thus, the right resistance mechanism 29 can be used to exercise the muscle groups on the right side of the body.

As shown in FIG. 1 , the foldable chair frame 1 further includes: a first frame component 10 , a second frame component 11 , and a connecting rod 12 . The first frame component 10 and the second frame component 11 are rigid components, which respectively form the front leg and the rear leg of the foldable chair frame 1 . For this purpose, the first frame component 10 and the second frame component 11 are pivotally connected at their centres. Thus, the first frame component 10 and the second frame component 11 form a scissors-like mechanism; when the present invention is unfolded, the scissors-like mechanism forms an X shape. The seat 2 is pivotally connected to the terminal of the second frame component 11 . When the present invention transitions from the folded state to the unfolded state, the seat 2 can pivot relative to the end of the second frame component 11 . In order to realize the pivotal movement, the seat 2 is also pivotally connected to the terminal of the connecting rod 12 to counteract the effect of the second frame component 11 . The first frame component 10 is pivotally connected to the other end of the connecting rod 12 relative to the seat 2 . Thus, the link 12 allows the seat 2 to be supported by the first frame component 10 when the invention is in the unfolded state. Moreover, the connecting rod 12 can ensure that: when the present invention transitions from the folded state to the unfolded state, the first frame component 10 , the second frame component 11 , and the seat 2 can move in coordination.

As shown in FIG. 1 and FIG. 4 , the present invention further includes: a handle 5 . The handle 5 is connected to one side of the seat 2, which allows the user to reposition the seat 2 to switch between the folded state and the unfolded state. The handle 5 is located between the left resistance mechanism 13 and the right resistance mechanism 29 . The arrangement of this position allows the handle 5 to be easily grasped by the user without hindering the movement of the user. The handle 5 allows the user to reposition the seat 2, and the seat 2 is designed as a rotatable device. When sitting on the seat 2, the user has the freedom to twist from one side to the other. To achieve this purpose, the seat 2 further includes: a seat base 3 and a seat cushion 4 . The base 3 is a frame connected to the second frame component 11 and the connecting rod 12 . The seat cushion 4 is a padded platform on which the user sits. The seat cushion 4 is rotatably mounted on the seat base 3 . Thus, when the user is exercising, he can rotate the seat cushion 4 . In a preferred embodiment, the seat cushion 4 is installed on the base 3 by a "lazy Susan" bearing mechanism.

As shown in FIGS. 2 and 3 , the user of the present invention can use the left resistance mechanism 13 and the right resistance mechanism 29 to exercise various muscle groups. For this purpose, the left resistance mechanism 13 and the right resistance mechanism 29 have respectively: an upper bracket 14, a plurality of upper pulleys 15, a lower bracket 16, a plurality of lower pulleys 17, and a plurality of resistance bands 18. The upper bracket 14 and the lower bracket 16 are support mechanisms for maintaining a plurality of upper pulleys 15 and a plurality of lower pulleys 17 in position. Upper pulley 15 and lower pulley 17 help resistance band 18 to carry out resistance exercise. Both the upper bracket 14 and the lower bracket 16 are rigid C-shaped brackets arranged around the upper pulley 15 and the lower pulley 17 . The upper bracket 14 is detachably installed on the first pad crossbar 30 to maintain the positioning of the upper pulleys 15 and the resistance bands 18 so that they can be used for fitness exercises. A plurality of upper pulleys 15 are distributed on the upper bracket 14 in sequence. Thus, the upper bracket 14 and the plurality of upper pulleys 15 form a pulley box for combining a plurality of resistance bands 18 . Each of the plurality of upper pulleys 15 is pivotally connected to the upper bracket 14 . Thus, the plurality of upper pulleys 15 can pivot independently when the user exerts force.

As shown in FIG. 3 and FIG. 4 , the installation method of the lower bracket 16 and the plurality of lower pulleys 17 is similar to the installation method of the upper bracket 14 and the plurality of upper pulleys 15 . The lower bracket 16 is detachably mounted on one side of the foldable chair frame 1 opposite to the height-adjustable chair back 6 . The lower bracket 16 maintains a plurality of lower pulleys 17 and a plurality of resistance bands 18 in position to help the implementation of fitness exercises. A plurality of lower pulleys 17 are distributed on the lower bracket 16 in sequence. Thus, the lower bracket 16 and the plurality of lower pulleys 17 form a pulley box for combining a plurality of resistance bands 18 . Each of the plurality of lower pulleys 17 is pivotally connected to the lower bracket 16 . Thus, the plurality of lower pulleys 17 can pivot independently when the user exerts force.

In order to fully describe the left resistance mechanism 13 and the right resistance mechanism 29 , please refer to FIGS. 1 to 4 . Each of the plurality of resistance bands 18 is stretchably coupled between an associated upper pulley of the plurality of upper pulleys 15 and an associated lower pulley of the plurality of lower pulleys 17 . Therefore, when the user performs various fitness exercises, each resistance band will pass around a related upper pulley and a related lower pulley. Each of the plurality of resistance bands 18 further includes: a band body 19, an upper block 20, an upper eye hole 21, a lower block 22, and a lower eye hole 23. The belt body 19 is a cable made of elastic material, which can be stretched during resistance training. The upper stopper 20 is a block structure made of rigid material, and the upper stopper 20 is combined with the terminal end of the belt body 19 . Thus, the upper stop 20 can prevent the belt body 19 from being pulled out of the associated upper pulley. The lower block 22 is a block structure made of rigid material, and the lower block 22 is combined with the other end of the belt body 19 relative to the upper block 20. Thus, the lower stop 22 can prevent the belt body 19 from being pulled out of the associated lower pulley. Between the upper stop 20 and the lower stop 22, the belt 19 is stretchably coupled to the associated upper pulley and the associated lower pulley. Thus, when the user performs resistance training, the belt body 19 will move on the associated upper pulley and the associated lower pulley. The upper eyelet 21 is fixed to the upper rail 20 , so that the user can attach fitness equipment, such as handles, straps, etc., to the upper rail 20 . Similarly, lower eyelets 23 are secured to lower rail 22 , whereby a user may attach exercise equipment, such as handles, straps, etc., to lower rail 22 .

Please refer to Figure 1, Figure 3, and Figure 4. In order to install the upper bracket 14 and the lower bracket 16 on the foldable chair frame 1 , the left resistance mechanism 13 and the right resistance mechanism 29 respectively have: an upper tube type connection mechanism 31 and a down tube type connection mechanism 32 . Both the upper tube type connecting mechanism 31 and the down tube type connecting mechanism 32 are detachable fasteners for installing the upper bracket 14 and the lower bracket 16 on the foldable chair frame 1 . To achieve this purpose, one end of the upper tube-type connecting mechanism 31 is connected to the upper bracket 14 . Furthermore, the other end of the upper tube-type connecting mechanism 31 relative to the upper bracket 14 is telescopically connected to the first cushion rail 30. Therefore, the upper tube-type connecting mechanism 31 extends between the upper bracket 14 and the first cushion rail 30 , and serves as a detachable fastener connecting the upper bracket 14 and the first gasket rail 30 . Similar to the upper tube type coupling mechanism 31 , one end of the down tube type coupling mechanism 32 is coupled to the lower bracket 16 . Furthermore, the other end of the lower tube type connecting mechanism 32 opposite to the lower bracket 16 is connected to the foldable chair frame 1 . Therefore, the down tube type connecting mechanism 32 extends between the lower bracket 16 and the foldable chair frame 1 , and serves as a detachable fastener connecting the lower bracket 16 and the foldable chair frame 1 .

Please refer to Figure 1. In a first alternative embodiment of the invention, the upper bracket 14 and the lower bracket 16 form a pulley box using pulleys that cannot pivot independently. For this purpose, the left resistance mechanism 13 and the right resistance mechanism 29 have respectively: an upper bracket 14, a plurality of upper pulleys 15, a lower bracket 16, a plurality of lower pulleys 17, and a plurality of resistance bands 18. The upper bracket 14 is detachably installed on the first pad cross bar 30 to keep the plurality of upper pulleys 15 and the plurality of resistance bands 18 in position to facilitate the implementation of fitness exercises. A plurality of upper pulleys 15 are distributed on the upper bracket 14 in sequence. Thus, the upper bracket 14 and the plurality of upper pulleys 15 form a pulley box for combining a plurality of resistance bands 18 . Each of the plurality of upper pulleys 15 is fixed to the upper bracket 14 . Thus, each of the plurality of upper pulleys 15 cannot move unless the upper bracket 14 moves.

Please refer to Figure 1 again. In the first alternative embodiment of the present invention, the lower bracket 16 and the plurality of lower pulleys 17 are mounted in a manner similar to the upper bracket 14 and the plurality of upper pulleys 15. The lower bracket 16 is detachably installed on the side of the foldable chair frame 1 opposite to the height-adjustable chair back 6 . The lower bracket 16 maintains a plurality of lower pulleys 17 and a plurality of resistance bands 18 in position to help the implementation of fitness exercises. A plurality of lower pulleys 17 are distributed on the lower bracket 16 in sequence. Thus, the lower bracket 16 and the plurality of lower pulleys 17 form a pulley box for combining a plurality of resistance bands 18 . Each of the plurality of lower pulleys 17 is fixed to the lower bracket 16. Thus, each of the plurality of lower pulleys 17 cannot move unless the lower bracket 16 moves. Each of the plurality of resistance bands 18 is stretchably coupled between an associated upper pulley of the plurality of upper pulleys 15 and an associated lower pulley of the plurality of lower pulleys 17 . Therefore, when the user performs various fitness exercises, each resistance band will pass around a related upper pulley and a related lower pulley.

Please refer to Figure 1, Figure 4, Figure 5, and Figure 6. In a first alternative embodiment, the upper bracket 14 and the lower bracket 16 are pulley blocks which prevent the individual pulleys from pivoting, but the pulley blocks themselves are pivotally mounted to the collapsible chair frame 1. To achieve this purpose, the left resistance mechanism 13 and the right resistance mechanism 29 respectively have: an upper pivot mechanism 33 and a lower pivot mechanism 34 . In a preferred embodiment, the upper pivot mechanism 33 and the lower pivot mechanism 34 are L-shaped protrusions for pivotally connecting the upper bracket 14 and the lower bracket 16 to the foldable chair frame 1 . For this purpose, the upper bracket 14 is pivotally connected to the upper pivot mechanism 33 , and the upper pivot mechanism 33 is connected to the first pad cross bar 30 . Therefore, the first leg of the L-shaped upper pivot mechanism 33 is pivotally connected to the upper bracket 14 , and the second leg of the L-shaped upper pivot mechanism 33 is fixedly connected to the first pad cross bar 30 . Similar to the upper pivot mechanism 33 , the lower bracket 16 is pivotally connected to the lower pivot mechanism 34 , and the lower pivot mechanism 34 is connected to the foldable chair frame 1 . Therefore, the first leg of the L-shaped lower pivot mechanism 34 is pivotally connected to the lower bracket 16 , and the L-shaped lower pivot mechanism 34 is fixedly connected to the foldable chair frame 1 relative to the second leg of the upper bracket 14 .

Please refer to Figure 4 and Figure 7. In a second alternative embodiment of the present invention, the left resistance mechanism 13 and the right resistance mechanism 29 use retrievable roller bar devices. When the user is performing resistance training, the retractable roller device resists the force applied by the user. For reaching this purpose, left resistance mechanism 13 and right resistance mechanism 29 have respectively: a torsion recovery rolling bar 24, a cable 25, a front rolling bar pulley 26, a rear rolling bar pulley 27, a rolling bar stopper 64, and A scroll bar eyelet 28. The torque recovery roll 24 is a reel that can automatically retract any length of released cable 25 . That is, the torque recovery roller 24 can apply force against the cable 25 that is released during resistance training. In a second alternative embodiment, torque recovery rollers 24 are used instead of the resistance bands 18 and the pulleys. For this purpose, the torque recovery rolling bar 24 is detachably installed on the first pad cross bar 30 ; thus, the user can easily grasp and operate the torque recovery rolling bar 24 . The front rolling bar pulley 26 is detachably installed on one side of the foldable chair frame 1 opposite to the height-adjustable chair back 6 . The user can carry out specific resistance training by looping the cable 25 on the front rolling bar pulley 26 . The rear rolling pulley 27 is detachably mounted on one side of the foldable chair frame 1 opposite to the front rolling pulley 26 . Therefore, the user can perform different resistance training by choosing to wrap around the cable 25 and roll the pulley 27 at the back. The cable 25 is looped around the torque recovery roller 24 so that the torque recovery roller 24 can exert force on the cable 25 to resist the user's effort to release the cable 25 from the torque recovery roller 24 . The rolling bar stopper 64 is connected to one end of the cable 25 opposite to the torsion recovery rolling bar 24 ; thus, the user can easily grasp one end of the cable 25 . The eyelet 28 of the scroll bar is fixed to the stopper 64 of the scroll bar; thereby, the user can attach a handle or sports equipment to the cable 25. (62 in the 7th picture should be 64) (63 below the 7th picture should be 28)

Please refer to FIG. 4 , FIG. 7 , FIG. 8 , and FIG. 9 . In the second alternative embodiment, the torsion recovery rolling bar 24 , the front rolling bar pulley 26 , and the rear rolling bar pulley 27 can be interchangeably installed on the foldable chair frame 1 . For this purpose, the left resistance mechanism 13 and the right resistance mechanism 29 respectively have: a first rolling bar tube type connecting mechanism 35, a second rolling bar tube type connecting mechanism 36, and a third rolling bar tube type connecting mechanism 37 , the above mechanisms are identical and interchangeable components. The torque recovery rolling bar 24 is connected to one end of the first rolling bar tube-type connecting mechanism 35, and the other end of the first rolling bar tube-type connecting mechanism 35 relative to the torque recovery rolling bar 24 is telescopically connected to the first pad cross bar 30. Thus, the first rolling bar tube-type connection mechanism 35 extends between the torsion recovery rolling bar 24 and the first liner bar 30, and acts as a retractable fastener to attach the torsion recovery rolling bar 24 to the first liner bar. Rod 30. Similar to the first scroll tube type connection mechanism 35, the front scroll bar pulley 26 is connected to one end of the second scroll bar tube type connection mechanism 36, and the other end of the second scroll bar tube type connection mechanism 36 is opposite to the front scroll bar pulley 26. It is telescopically connected to the foldable chair frame 1 again. Thus, the second rolling bar tube-type connecting mechanism 36 extends between the front rolling bar pulley 26 and the foldable chair frame 1 , and acts as a retractable fastener to attach the front rolling bar pulley 26 to the foldable chair frame 1 . The rear rolling bar pulley 27 is connected to one end of the third rolling bar tube type connecting mechanism 37 , and the other end of the third rolling bar tube type connecting mechanism 37 is telescopically connected to the foldable chair frame 1 relative to the rear rolling bar pulley 27 . Thus, the third rolling bar tube-type connecting mechanism 37 extends between the rear rolling bar pulley 27 and the foldable chair frame 1 , and serves as a retractable fastener to attach the rear rolling bar pulley 27 to the foldable chair frame 1 .

Please refer to FIG. 4 , FIG. 7 , FIG. 10 , and FIG. 11 . In a third alternative embodiment of the present invention, the torsion recovery rolling bar 24 , the front rolling bar pulley 26 , and the rear rolling bar pulley 27 can be interchangeably installed on the foldable chair frame 1 . For this purpose, the left resistance mechanism 13 and the right resistance mechanism 29 respectively have: a first scroll bar pivot connection mechanism 38, a second scroll bar pivot connection mechanism 39, and a third scroll bar pivot connection mechanism 40 , the above mechanisms are identical and interchangeable components. In a preferred embodiment, the first scroll bar pivot connection mechanism 38, the second scroll bar pivot connection mechanism 39, and the third scroll bar pivot connection mechanism 40 are L-shaped protrusions, which are used to recover the torsion from the scroll bar 24. The front scroll pulley 26 and the rear scroll pulley 27 are pivotally connected to the foldable chair frame 1 . The torque recovery rolling bar 24 is pivotally connected to the first rolling bar pivot connection mechanism 38 , and the end of the first rolling bar pivot connection mechanism 38 opposite to the torque recovery rolling bar 24 is further connected to the first pad cross bar 30 . Thus, the first leg of the L-shaped first rolling bar pivot connection mechanism 38 is pivotally connected to the torsion recovery rolling bar 24, and the second leg of the L-shaped first rolling bar pivot connection mechanism 38 is fixedly connected to the first Pad crossbar 30. Similar to the first scroll bar pivot connection mechanism 38, the front scroll bar pulley 26 is pivotally connected to the second scroll bar pivot connection mechanism 39, and one end of the second scroll bar pivot connection mechanism 39 opposite to the front scroll bar pulley 26 is then connected to the Foldable chair frame1. Then, the first foot of the L-shaped second rolling bar pivot connection mechanism 39 is pivotally connected to the front rolling bar pulley 26, and the second foot of the L-shaped second rolling bar pivot connection mechanism 39 is fixed on the foldable chair frame1. The rear scroll pulley 27 is pivotally connected to the third scroll pivot connection mechanism 40 , and the end of the third scroll pivot connection mechanism 40 opposite to the rear scroll pulley 27 is further connected to the foldable chair frame 1 . Thus, the first leg of the L-shaped third rolling bar pivot connection mechanism 40 is pivotally connected to the rear scroll bar pulley 27, and the second leg of the L-shaped third rolling bar pivot connection mechanism 40 is fixedly connected to the foldable chair frame1.

Please refer to FIG. 4 , FIG. 7 , FIG. 12 , and FIG. 13 . In a fourth alternative embodiment of the present invention, the torsion recovery rolling bar 24 , the front rolling bar pulley 26 , and the rear rolling bar pulley 27 can be interchangeably installed on the foldable chair frame 1 . For this purpose, the left resistance mechanism 13 and the right resistance mechanism 29 respectively have: a first rolling bar clamping and connecting mechanism 41, a second rolling bar clamping and connecting mechanism 44, and a third rolling bar clamping and connecting mechanism 47 , the above mechanisms have the same structure and can be interchanged. The torque recovery rolling bar 24 is connected to a fixed jaw 42 of the first rolling bar clamping and connecting mechanism 41, and the first pad cross bar 30 is arranged on the fixed jaw 42 and the first rolling bar clamping and connecting mechanism 41 of the first rolling bar. The rolling bar clamps between a movable jaw 43 of the coupling mechanism 41 . Therefore, the first rolling bar clamping and connecting mechanism 41 serves as a retractable fastener to clamp the torsion recovery rolling bar 24 to the first pad cross bar 30 . Similar to the first rolling bar clamping link mechanism 41, the front rolling bar pulley 26 is linked to a fixed jaw 45 of the second rolling bar clamping linking mechanism 44, and a part of the foldable chair frame 1 is placed on the second rolling bar clamping mechanism 44. Between the fixed jaw 45 of the holding link mechanism 44 and a movable jaw 46 of the second rolling bar clamping link mechanism 44 . Therefore, the second rolling bar clamping and connecting mechanism 44 serves as a retractable fastener to clamp the front rolling bar pulley 26 to the foldable chair frame 1 . The rear rolling bar pulley 27 is connected to a fixed jaw 48 of the third rolling bar clamping and connecting mechanism 47, and the other part of the foldable chair frame 1 is arranged on the fixed jaw 48 and the second rolling bar clamping and connecting mechanism 47 of the third rolling bar. Three rolling bars are clamped between a movable jaw 49 of the connecting mechanism 47 . Thus, the third rolling bar clamping and connecting mechanism 47 serves as a retractable fastener to clamp the rear rolling bar pulley 27 to the foldable chair frame 1 .

Please refer to Figure 1 and Figure 4. When performing resistance training, the user can stabilize the foldable chair frame 1 by standing on the front step 58 . That is to say, the present invention further includes: a front pedal 58 . The front step 58 is a rigid planar structure extending from the front foot of the foldable chair frame 1 . The front pedal 58 is hinged to the foldable chair frame 1 . When the front pedal 58 is not in use, the user can lift the front pedal 58 against the foldable chair frame 1 for storage. The height-adjustable seat back 6 and the front step 58 face each other along the foldable chair frame 1 . Moreover, the height-adjustable seat back 6 and the front pedal 58 face each other across the seat 2 . Thus, the front step 58 is located near the bottom of the front foot of the foldable chair frame 1 . The arrangement of this position allows the user to step on the front step 58, and the front step 58 can be supported by the surface on which the present invention is placed.

Please refer to Figure 1 and Figure 4 again. Similar to the front step 58, the user can stabilize the foldable chair frame 1 by standing on the rear step 59 when doing resistance training. That is to say, the present invention further comprises: a rear pedal 59. The rear pedal 59 is a rigid planar structure extending from the rear foot of the foldable chair frame 1 . The rear pedal 59 is hinged to the foldable chair frame 1 . When the rear pedal 59 is not in use, the user can lift the rear pedal 59 against the foldable chair frame 1 for storage. The height-adjustable chair back 6 and the rear pedal 59 are opposite to each other along the foldable chair frame 1 . Moreover, the height-adjustable seat back 6 and the rear pedal 59 are adjacent to the seat 2 . Then, the rear pedal 59 is located near the bottom of the rear foot of the foldable chair frame 1 . The arrangement of this position allows the user to step on the rear pedal 59, and allows the rear pedal 59 to be supported by the surface on which the present invention is placed.

As shown in Figures 2 and 3, the present invention is designed to perform various resistance training exercises. To achieve this purpose, the present invention further includes: a plurality of auxiliary resistance mechanisms 50 , a front support rod 60 , a rear support rod 61 , and a cross bar 62 . Each of the plurality of auxiliary resistance mechanisms 50 is a combination of resistance bands, which is used to implement the resistance training movement of the user's legs. Each of the plurality of auxiliary resistance mechanisms 50 includes: a front pulley 51 , a rear pulley 52 , and a resistance band 53 . The front support bar 60 and the rear support bar 61 are connected to the position of the foldable chair frame 1 relative to the height-adjustable seat back 6 . The front support rod 60 and the rear support rod 61 are opposite to each other on both sides of the seat 2 . Thus, the front support rod 60 is located under the seat 2 and extends between the front legs of the foldable chair frame 1 . Similar to the front support bar 60 , the rear support bar 61 is located under the seat 2 and extends between the rear legs of the foldable chair frame 1 . The cross bar 62 is installed at a position deviated from the seat 2 . The cross bar 62 is located below the seat 2 and serves as the fulcrum of the plurality of auxiliary resistance mechanisms 50. In order to make the crossbar 62 serve as the fulcrum of the plurality of auxiliary resistance mechanisms 50 , the front pulley 51 is pivotally connected to the front support rod 60 , and the rear pulley 52 is pivotally connected to the rear support rod 61 . Thus, the resistance band 53 is coupled to the front pulley 51 , the cross bar 62 , and the rear pulley 52 under tension. Under this position arrangement, the front pulley 51, the rear pulley 52, and the resistance band 53 can be used as a resistance training mechanism. This resistance training mechanism takes advantage of the mechanical advantage of tensioning the resistance bands on the crossbar 62 .

As shown in FIGS. 1 and 4 , each of the plurality of auxiliary resistance mechanisms 50 further includes: a front block 54 , a front eye hole 55 , a rear block 56 , and a rear eye hole 57 . The front block 54 is a block made of rigid material, which is connected to one end of the resistance band 53 . Thereby, the front stopper 54 can prevent the resistance band 53 from detaching from the front pulley 51 . The back block 56 is a block made of rigid material, which is connected to the other end of the resistance band 53 opposite to the front block 54 . Thereby, the back stopper 56 can prevent the resistance band 53 from slipping out from the back pulley 52 . Between the front block 54 and the rear block 56 , the front pulley 51 and the rear pulley 52 are combined with a tight resistance band 53 . When the user performs resistance training, the resistance band 53 will move on the front pulley 51 and the rear pulley 52 . The front eyelet 55 is fixed to the front block 54, whereby the user can attach sports equipment, such as handles, straps, etc., to the front block 54. Similar to the front eyelet 55 , the rear eyelet 57 is secured to the rear fence 56 , whereby a user can attach sports equipment, such as handles, straps, etc., to the rear fence 56 .

Please refer to Figure 2 and Figure 3. In order to increase the comfort of the height-adjustable seat back 6 , the present invention further includes a second pad cross bar 63 . The second cushion rail 63 is perpendicular to the height-adjustable seat back 6 . The second pad cross bar 63 is installed at a position deviated from the first pad cross bar 30 along the height-adjustable seat back 6 direction. Moreover, the second pad cross bar 63 is installed at a position relative to the seat 2 along the direction of the height-adjustable seat back 6 . With this installation method, the second pad cross bar 63 is parallel to the first pad cross bar 30 , and it can make the user more stable during resistance training.

Please refer to Figure 1 and Figure 4. The height-adjustable chair back 6 further includes: a first telescopic tube 7 , a second telescopic tube 8 , and a connecting handle 9 . The first telescopic tube 7 and the second telescopic tube 8 are rigid supporting tubes, forming a structural frame of the height-adjustable seat back 6 . The first telescopic tube 7 is parallel to the second telescopic tube 8, so that the back of the foldable chair frame 1 is substantially a plane. The connection handle 9 is connected to the ends of the first telescopic tube 7 and the second telescopic tube 8, so that the user can easily grasp and adjust the present invention. At a position relative to the connection handle 9 , the first telescopic tube 7 is slidably pivoted to the foldable chair frame 1 . At a position relative to the connection handle 9 , the second telescopic tube 8 is also slidably pivoted to the foldable chair frame 1 . Therefore, the user can adjust the height of the chair back 6 by sliding the first telescopic tube 7 and the second telescopic tube 8 on the foldable chair frame 1 .

The present invention has been described above through the embodiments, but it should be understood that: these embodiments are only used to illustrate the present invention, not to limit the scope of the present invention. Any modifications or changes that do not depart from the spirit of the present invention will still be included within the scope of the present invention.

Claims (19)

1. A folding exercise chair for resistance training, characterized in that it comprises: a foldable chair frame; a left resistance mechanism; a right resistance mechanism; and a first liner crossbar, in which The foldable chair frame further includes: a chair seat and a height-adjustable chair back; the first cushion rail is perpendicular to the height adjustable seat back; the first cushion rail and the seat face each other along the height adjustable seat back; The left resistance mechanism is mounted on one side of the foldable chair frame; The right resistance mechanism is installed on the other side of the foldable chair frame relative to the left resistance mechanism. 2. The folding exercise chair for resistance training as claimed in claim 1, characterized in that, The foldable chair frame further includes: a first frame component, a second frame component, and a connecting rod; the first frame component and the second frame component are pivotally connected at their centers; the seat is pivotally connected to a terminal end of the second frame component; The seat is pivotally connected to the terminal end of the connecting rod to counteract the effect of the second frame component; The first frame component is pivotally connected to the other end of the connecting rod relative to the seat; The height adjustable seat back is connected to a terminal end of the first frame member proximate the link. 3. The folding sports chair for resistance training according to claim 2, further comprising a handle, wherein the handle is attached to one side of the seat; The handle is located between the left resistance mechanism and the right resistance mechanism. 4. The folding exercise chair for resistance training according to claim 2, wherein the seat further comprises: a seat base and a seat cushion; The seat cushion is rotatably installed on the base. 5. The folding exercise chair for resistance training as claimed in claim 1, wherein the left resistance mechanism and the right resistance mechanism each have: an upper bracket, a plurality of upper pulleys, a lower bracket, a plurality of Lower pulley, and multiple resistance bands; the upper bracket is detachably mounted on the first cushion rail; The plurality of upper pulleys are sequentially distributed on the upper bracket; Each of the plurality of upper pulleys is pivotally connected to the upper bracket; The lower bracket is detachably mounted on one side of the foldable chair frame opposite to the height-adjustable chair back; The plurality of lower pulleys are sequentially distributed on the lower bracket; Each of the plurality of lower pulleys is pivotally connected to the lower bracket; Each of the plurality of resistance bands is stretchably coupled between an associated upper pulley of the plurality of upper pulleys and an associated lower pulley of the plurality of lower pulleys. 6. The folding exercise chair for resistance training as claimed in claim 5, wherein each of the plurality of resistance bands further comprises: a belt body, an upper block, an upper eye hole, a lower block, and a lower eye socket; The upper stop is combined with the end of the belt; The lower block is combined with the other end of the belt relative to the upper block; Between the upper block and the lower block, the belt is stretchably coupled to the associated upper pulley and the associated lower pulley; the upper eyelet is fixed to the upper fence; The lower eye hole is fixed on the lower block. 7. The folding exercise chair for resistance training as claimed in claim 5, characterized in that, The left resistance mechanism and the right resistance mechanism each have: an upper tube type connecting mechanism and a lower tube type connecting mechanism; One end of the upper tube-type connecting mechanism is connected to the upper bracket; The other end of the upper tube-type connecting mechanism relative to the upper bracket is telescopically connected to the first cushion rail; One end of the lower tube type connecting mechanism is connected to the lower bracket; The other end of the lower tube type connecting mechanism is telescopically connected to the foldable chair frame relative to the other end of the lower bracket. 8. The folding exercise chair for resistance training as claimed in claim 1, characterized in that, The left resistance mechanism and the right resistance mechanism each have: an upper bracket, a plurality of upper pulleys, a lower bracket, a plurality of lower pulleys, and a plurality of resistance bands; the upper bracket is detachably mounted on the first cushion rail; The plurality of upper pulleys are sequentially distributed on the upper bracket; Each of the plurality of upper pulleys is fixedly connected to the upper bracket; The lower bracket is detachably mounted on one side of the foldable chair frame opposite to the height-adjustable chair back; The plurality of lower pulleys are sequentially distributed on the lower bracket; Each of the plurality of lower pulleys is fixedly connected to the lower bracket; Each of the plurality of resistance bands is stretchably coupled between an associated upper pulley of the plurality of upper pulleys and an associated lower pulley of the plurality of lower pulleys. 9. The folding exercise chair for resistance training as claimed in claim 8, characterized in that, The left resistance mechanism and the right resistance mechanism respectively have: an upper pivot mechanism and a lower pivot mechanism; The upper bracket is pivotally connected to the upper pivot mechanism; the upper pivot mechanism is connected to the first pad crossbar; The lower bracket is pivotally connected to the lower pivot mechanism; The lower pivot mechanism is connected to one side of the foldable chair frame opposite to the upper bracket. 10. The folding exercise chair for resistance training as claimed in claim 1, characterized in that, The left resistance mechanism and the right resistance mechanism respectively have: a torque recovery scroll bar, a cable, a front scroll bar pulley, a rear scroll bar pulley, a scroll bar stopper, and a scroll bar eyehole; The torque recovery rolling bar is detachably installed on the first pad cross bar; The front rolling bar pulley is detachably installed on one side of the foldable chair frame relative to the height-adjustable chair back; The rear rolling pulley is detachably mounted on one side of the foldable chair frame opposite to the front rolling pulley; the cable is looped around the torque recovery roller; The rolling bar stopper is connected to one end of the cable opposite to the torque recovery rolling bar; The scroll bar eye hole is fixed on the scroll bar stopper. 11. The folding exercise chair for resistance training as claimed in claim 10, further comprising: a first rolling bar tube linkage mechanism; a second scrollbar tubular linkage; a third scrollbar tubular linkage, wherein The torsion recovery rolling bar is connected to one end of the first rolling bar tubular connection mechanism; The other end of the first rolling bar tubular connection mechanism relative to the torque recovery rolling bar is telescopically connected to the first pad cross bar; The front rolling bar pulley is connected to one end of the second rolling bar tube type connecting mechanism; The other end of the second rolling bar tube type connection mechanism relative to the front rolling bar pulley is telescopically connected to the foldable chair frame; The rear scroll bar pulley is connected to one end of the third scroll bar tube type connection mechanism; The other end of the third rolling bar tube type connection mechanism relative to the rear rolling bar pulley is telescopically connected to the foldable chair frame. 12. The folding exercise chair for resistance training as claimed in claim 10, further comprising: a first scroll bar pivot connection mechanism; a second scrollbar pivot linkage; and a third scrollbar pivot joint, wherein The torque recovery rolling bar is pivotally connected to the first rolling bar pivot connection mechanism; the first scroll bar pivot connection mechanism is connected to the first pad crossbar; The front scroll bar pulley is pivotally connected to the second scroll bar pivot connection mechanism; The second rolling bar pivot connection mechanism is connected to the foldable chair frame; The rear scroll bar pulley is pivotally connected to the third scroll bar pivot connection mechanism; The third rolling bar pivot connection mechanism is connected to the foldable chair frame. 13. The folding exercise chair for resistance training according to claim 10, further comprising: A first rolling bar clamping and connecting mechanism; a second scroll bar clamping linkage; and A third scroll bar clamping link mechanism, wherein The torque recovery rolling bar is connected to a fixed jaw of the first rolling bar clamping link mechanism; the first pad crossbar is disposed between the fixed jaw of the first rolling bar clamping linkage mechanism and a movable jaw of the first rolling bar clamping linkage mechanism; The front scroll pulley is connected to a fixed jaw of the second scroll clamping link mechanism; A portion of the foldable chair frame is disposed between the fixed jaw of the second rolling bar clamping linkage mechanism and a movable jaw of the second rolling bar clamping linkage mechanism; The rear scroll pulley is connected to a fixed jaw of the third scroll gripping mechanism; The other part of the foldable chair frame is disposed between the fixed jaw of the third rolling bar clamping and connecting mechanism and a movable jaw of the third rolling bar clamping and connecting mechanism. 14. The folding exercise chair for resistance training according to claim 1, further comprising a front pedal, wherein The front pedal is hinged to the foldable chair frame; the height-adjustable chair back and the front step face each other along the foldable chair frame; The height-adjustable chair back and the front pedal are opposite to each other across the seat. 15. The folding exercise chair for resistance training as claimed in claim 1, further comprising a rear pedal, wherein The rear pedal is hinged to the foldable chair frame; the height-adjustable chair back and the rear footboard face each other along the foldable chair frame; The height adjustable chair back and the rear pedal are adjacent to each other on both sides of the seat. 16. The folding exercise chair for resistance training according to claim 1, further comprising: a plurality of auxiliary resistance mechanisms; a front support rod; a rear support rod; and a crossbar, of which Each of the plurality of auxiliary resistance mechanisms includes: a front pulley, a rear pulley, and a resistance band; the front support bar and the rear support bar are linked to the foldable chair frame at positions relative to the height-adjustable chair back; the front support bar and the rear support bar are opposite each other on either side of the seat; the crossbar is mounted at a position offset from the seat; the front pulley is pivotally connected to the front support rod; the rear pulley is pivotally connected to the rear support rod; The resistance band is connected to the front pulley, the crossbar, and the rear pulley under tension. 17. The folding exercise chair for resistance training according to claim 16, characterized in that, Each of the plurality of auxiliary resistance mechanisms further includes: a front block, a front eye hole, a rear block, and a rear eye hole; the front stop is attached to one end of the resistance band; the rear stop is attached to the other end of the resistance band opposite the front stop; between the front stop and the rear stop, the front pulley and the rear pulley engage the resistance band taut; the front eyelet is fixed to the front shield; The rear eye hole is fixed on the rear shield. 18. The folding exercise chair for resistance training of claim 16, further comprising a second padded crossbar, wherein the second cushion rail is perpendicular to the height adjustable seat back; The second cushion crossbar is installed at a position deviated from the first cushion crossbar along the height-adjustable seat back direction; The second cushion crossbar is mounted at a position relative to the seat along the height-adjustable seat back direction. 19. The folding exercise chair for resistance training according to claim 16, wherein: The height-adjustable chair back further includes: a first telescopic tube, a second telescopic tube, and a connecting handle; The first telescopic tube is parallel to the second telescopic tube; The connecting handle is connected to one end of the first telescopic tube; The connection handle is connected to one end of the second telescopic tube; At a position relative to the connecting handle, the first telescopic tube is slidably pivoted to the foldable chair frame; At a position relative to the connection handle, the second telescopic tube is slidably pivoted to the foldable chair frame.