TWI737251B - Wheelchair with rehabilitation function - Google Patents

Abstract

A wheelchair with rehabilitation function, comprising a chair frame unit, a wheel unit, and a leg exercise unit. The chair frame unit includes two side frames spaced apart and opposed to each other, and a chair set between the side frames A back, and a seat between the side frames and located in front of the back. The wheel unit includes two rear wheels respectively pivoted on the side frames and close to the seat back, and two steering wheels respectively pivoted on the side frames and located in front of the rear wheels. The leg exercise unit includes two telescopic rods pivoted on the side frames and located in front of the seat and elastically stretchable, and two pedals respectively connected to the ends of the telescopic rods. The pedals can be pushed by the user's legs to drive the telescopic rods.

Description

Wheelchair with rehabilitation function

The present invention relates to a wheelchair, in particular to a wheelchair with rehabilitation function.

Wheelchairs are common medical equipment in modern society and are used as a means of transportation for patients with leg discomfort or elderly people when they move. However, the existing wheelchairs are less able to provide rehabilitation functions for the user’s legs. If sitting in the wheelchair for a long time without moving, the leg muscles are still prone to atrophy and necrosis, and are not easy to recover. Therefore, how to improve the shortcomings of the aforementioned prior art? The subject of the present invention to be further explored.

Therefore, the object of the present invention is to provide a wheelchair with rehabilitation function to solve the problem that the existing users cannot move in the wheelchair for a long time, and the leg muscles are prone to atrophy and necrosis.

Therefore, in some embodiments, the present invention includes a chair frame unit, a wheel unit, and a leg exercise unit. Between the back of the chair, and a chair seat located between the side frames and in front of the back of the chair. The wheel unit includes two rear wheels pivoted on the side frames and close to the seat back, and two steering wheels respectively connected to the side frames and located in front of the rear wheels. The leg exercise unit includes two telescopic rods pivoted on the side frames and located in front of the seat and elastically stretchable, and two pedals respectively connected to the ends of the telescopic rods. The pedals can be pushed by the user's legs to drive the telescopic rods.

In some embodiments, the leg exercise unit further includes a linkage support mechanism that is disposed between the side frames and connected to the pedals.

In some embodiments, each side frame has a rear upright rod and a push handle connected to the upper end of the rear upright rod, the seat back is arranged between the rear upright rods of the side frames, and the leg exercise unit It also includes a crossbar straddling the push handles, the linkage support mechanism includes at least one upright rod rotatably connected to the crossbar and extending obliquely rearward, and at least one upright rod connected to the end of the upright rod and extending one left and right An auxiliary rod extending in a direction, and two extension rods rotatably connected to the auxiliary rod and respectively fixedly connected with the pedals, and the extension rods are located under the seat.

In some embodiments, each extension rod has a connecting section connected with the auxiliary rod, and an adjustable length connecting the connecting section with the corresponding pedal.

In some embodiments, each side frame further has an armrest rod connected to the rear upright rod and extending forward, a bottom rod connected to the lower end of the rear upright rod and extending forward, and a bottom rod connecting the armrest rod and the The bottom rod is provided with a front vertical rod pivoted corresponding to the telescopic rod.

In some embodiments, each telescopic rod has a sleeve section pivoted to the corresponding front upright rod, an adjustment section movably sleeved in the sleeve section, and an elastic telescopic section relative to the adjustment section. And connected to the telescopic section of the corresponding pedal, the sleeve section has a plurality of positioning holes arranged at intervals along the axial direction, and the adjustment section is provided with a positioning rib that can be elastically compressed and can be engaged with one of the positioning holes to adjust The length of the telescopic rod.

In some embodiments, the leg exercise unit further includes two fixed rods connected to the front ends of the side frames in an upright position, a first transverse grip rod rotatably connected to the upper end of one of the fixed rods, and A second transverse grip rod is rotatably connected to the upper end of the other fixed rod, and the first transverse grip rod and the second transverse grip rod are detachably connected between the fixed rods.

In some embodiments, it also includes two active brake modules respectively arranged on the side frames and located on the front side of the rear wheels. Each active brake module includes a brake seat arranged on the bottom rod, and a brake seat. A pull rod rotatably arranged on the brake seat and located in front of the corresponding rear wheel, a brake block arranged on the brake seat and rotatably touching the corresponding rear wheel, and a linkage unit connecting the pull rod and the brake shoe, when When the pull rod is pulled, it will drive the linkage unit to move and act on the brake block to make it touch the corresponding rear wheel.

In some embodiments, each side frame has a rear upright rod and a push handle connected to the upper end of the rear upright rod, and the seat back is arranged between the rear upright rods of the side frames, which has a rehabilitation function The wheelchair also includes two push-handle brake modules which are arranged on the push-handle and respectively connected to the active brake modules. Each push-handle brake module has a brake lever arranged on the push-handle and connected to the brake lever The brake line of the brake block corresponding to the active brake module will pull the brake block to the rear wheel when the brake lever is pressed and the brake line is pulled.

In some implementations, it further includes a table board module, which defines the armrest bars as a first armrest bar and a second armrest bar, respectively. The table board module can be placed across the armrest bars Switch between the use state and the folded state always standing on the outside of the first handrail rod, and includes a table board body, and a wire rail mechanism, the wire rail mechanism includes a rotatably arranged on the first handrail rod and used for A first base that supports the table body and has a through hole, a second base that is fixed on the bottom side of the table body and is detachably locked to the second handrail, and a movably penetrates A spool arranged in the through hole and fixed to the second base, when the table board module is switched between the use state and the folded state, the spool moves relative to the first base.

The present invention has at least the following effects: by elastically connecting the pedals with the telescopic rods of the leg exercise unit, the legs of the user can push against the pedals, and the telescopic rods will be supported. Zhang Er produces elastic restoring force, which produces a certain impedance effect on the user's legs, thereby training the user's leg muscles, and assisting the user to have the effect of self-rehabilitation while riding in a wheelchair.

Referring to Figure 1, an embodiment of the wheelchair with rehabilitation function of the present invention includes a chair frame unit 1, a wheel unit 2, a leg exercise unit 3, two active brake modules 4, and two push handle brake modules Group 5, and a table board module 6.

Referring to Figures 1 and 2, the chair frame unit 1 includes two side frames 11 spaced apart from each other and symmetrical in structure, a chair back 12 arranged between the side frames 11, and a chair back 12 arranged on the side frames The seat 13 between 11 and in front of the back 12 of the seat. Each side frame 11 has a rear upright rod 111, a push handle 112 connected to the upper end of the rear upright rod 111, an armrest rod 113 that is connected to the rear upright rod 111 and extends forward for the user to lean on, and one A bottom rod 114 that is connected to the lower end of the rear upright rod 111 and extends forward, a front upright rod 115 that connects the armrest rod 113 and the bottom rod 114, and a front rod 115 that connects the armrest rod 113 and the bottom rod 114 and is arranged at the rear The reinforcing rods 116 between the upright rod 111 and the front upright rod 115 are used for setting the seat 13. In detail, the seat back 12 is arranged between the rear uprights 111. Each armrest 113 can be provided with a soft pad to allow the user's hand to lean more comfortably.

1, the wheel unit 2 includes two rear wheels 21 pivoted at the lower ends of the rear uprights 111, and two steering wheels 22 respectively connected to the side frames 11 and located in front of the rear wheels 21 In a modified implementation aspect, the rear wheels 21 can be pivoted at positions where the bottom rod 114 is close to the rear upright 111, respectively, which is not limited to this embodiment.

1 to 3, the leg exercise unit 3 includes a cross bar 31 that straddles the push handles 112, two telescopic rods 32 that are pivoted to the front uprights 115 and can be elastically stretched, and two Two pedals 33 respectively connected to the ends of the telescopic rods 32, a linkage support mechanism 34 arranged between the side frames 11 and connected to the pedals 33, and two are respectively connected to the front ends of the side frames 11 upright The fixed rod 35, a first transverse grip rod 36 rotatably connected to the upper end of one of the fixed rods 35, and a second transverse grip rod 37 rotatably connected to the upper end of the other fixed rod 35. In this embodiment, the fixed rods 35 are respectively connected to the front ends of the armrest rods 113 and the bottom rod 114 of the side frames 11 to form a part of the side frames 11. The pedals 33 can be pushed against by the user's legs to drive the telescopic rods 32 to expand and contract. The first transverse grip rod 36 and the second transverse grip rod 37 are detachably connected to the fixed rods 35 between.

1, 2 and 4, each telescopic rod 32 has a sleeve section 321 pivoted to the corresponding front upright 115, an adjustment section 322 movably sleeved in the sleeve section 321, and a It can be elastically stretched relative to the adjusting section 322 and connected to the telescopic section 325 of the corresponding pedal 33. The sleeve section 321 has a plurality of positioning holes 323 arranged at intervals along the axial direction. The adjusting section 322 is provided with an elastically compressible and snap-fitted The positioning rib 324 of one of the positioning holes 323 allows the user to adjust the telescopic rod 32 according to the leg length so as to adjust the position of the pedals 33 to meet the stepping positions of different users. There are tension springs inside the telescopic sections 325 so that when the user steps on the pedals 33, the telescopic sections 325 will be driven to extend in the axial direction and are subjected to the elastic restoring force of the spring to produce a resistance to the user. The strength allows the user to achieve a rehabilitation effect by applying force to the pedals 33 when sitting in a wheelchair.

1 to 4, in this embodiment, the interlocking support mechanism 34 includes two upright rods 341 rotatably connected to the crossbar 31 and extending obliquely rearward, and one connected to the ends of the upright rods 341 and An auxiliary rod 342 extending in the left-right direction, and two extension rods 343 rotatably connected to the auxiliary rod 342 and fixed to the pedals 33 respectively. The extension rods 343 are located below the seat 13, when a user with weak muscle strength wants to apply force to the pedals 33 and link the linkage support mechanism 34 to move back and forth relative to the chair frame unit 1 for rehabilitation, push The caregiver of the wheelchair can move the assist rod 342 by stepping on the foot to assist the user with weak muscle strength to rehabilitate until the user’s leg muscle strength gradually increases, the user can move the pedals 33 by stepping on their own. Rehabilitation. During rehabilitation, the telescopic rods 32 will be stretched to produce elastic restoring force, which produces a certain impedance effect on the user’s legs, thereby training the user’s leg muscles and assisting the user in riding a wheelchair. Can rehabilitate. In a modified embodiment, the auxiliary rod 342 can be separated into two sections and connected to the upright rods 341 respectively, and when the user exerts force on one of the pedals 33, the corresponding extension rod 343 will be driven. Independently rotate relative to the seat 13 to achieve the effect of training a single leg. In another modified embodiment, the number of the upright rod 341 may be only one and connect the cross rod 31 and the auxiliary rod 342.

Referring to FIGS. 1 to 3 and FIG. 8B, each extension rod 343 has a connecting section 344 connected to the auxiliary rod 342, and an extension section 345 connecting the connecting section 344 and the corresponding pedal 33 in an adjustable length. In this embodiment, the extension section 345 has a movable sleeve 346 and a movable tube portion 347 movably sleeved in the connecting section 344 for adjusting the length of the extension section 345, thereby adjusting the pedals 33 The front-to-back distance relative to the seat 13 can be adapted to the positions where users with different leg lengths place their feet. The caregiver can adjust the length of the movable tube 347 penetrated into the connecting section 344 by unscrewing the movable kit 346 to adjust the front-to-back distance of the pedals 33 relative to the seat 13 so that the Wait for the position of the pedal 33 to match the position of the user's feet.

1 and 5, in this embodiment, the first horizontal grip 36 includes a first grip main body 361, and a rib 362 protruding from the first grip main body 361, the second horizontal The grip 37 includes a second grip body 371 and a sleeve 373 disposed on the second grip body 371 and having a plurality of holes 372 arranged at intervals along the axial direction. The protruding rib 362 can be elastically compressed and engaged with one of the holes 372, and the first cross-grip rod 36 and the second cross-grip rod 37 can rotate laterally with the fixed rod 35 as an axis. The user can align the first cross-grip bar 36 and the second cross-grip bar 37 to each other and use the sleeve 373 to connect with the rib 362, and then turn the pedals 33 upwards, that is, they can get up and support The first horizontal grip bar 36 and the second horizontal grip bar 37 move forward slowly to assist in training leg muscles.

1, 6A and 6B, each active brake module 4 includes a brake seat 41 arranged on the bottom rod 114, a lever 42 rotatably arranged on the brake seat 41 and located in front of the corresponding rear wheel 21 , A brake block 43 that is arranged on the brake seat 41 and rotatably touches the corresponding rear wheel 21, and a linkage unit 44 that connects the pull rod 42 and the brake block 43. When the pull rod 42 is pulled, it will drive the linkage unit 44 to move and act on the brake block 43 to make it touch the corresponding rear wheel 21. In detail, the pull rods 42 extend upward in an arc and are located in a position that can be touched when the user's elbow is bent at an angle of about 30 degrees, which is more in line with ergonomics. When the user encounters an emergency, he can intuitively pull the levers 42 backward, and the levers 42 can link the brake blocks 43 to press against the rear wheels 21 to achieve the braking effect.

Referring to Figure 1, Figure 7A and Figure 7B, the push handle brake modules 5 are arranged on the push handle 112 and are respectively connected to the active brake modules 4, and each push handle brake module 5 has a The brake lever 51 of the push handle 112 and the brake cable 52 connecting the brake lever 51 and the brake shoe 43 of the corresponding active brake module 4, when the brake lever 51 is pressed and pulled the brake cable 52, will pull the brake shoe 43 to The rear wheel 21, therefore, the caregiver can pull the brake levers 51 to drive the brake wires 52 and then the brake blocks 43 are pulled against the rear wheels 21 to achieve a braking effect, thereby avoiding Danger occurs.

Referring to Figures 1 and 8A to 8C, the handrails 111 are defined as a first handrail 113a and a second handrail 113b, respectively. The table board module 6 can be placed across the handrail 113 The state of use (as shown in FIG. 1) and the folded state (as shown in FIG. 8C) standing on the outside of the first handrail 113a are switched between. The table board module 6 includes a table board body 61 and a wire rail mechanism 62. The wire rail mechanism 62 includes two rotatably arranged on the first armrest rod 113a and used to support the table board body 61 and each has a through hole. A first base 621 with a hole 622, two second bases 623 fixed on the bottom side of the table body 61 and detachably engaged with the second handrail 113b, and a second base 623 movably passing through the The hole 622 is penetrated and fixed to the spool 624 of the second base 623. When the table top module 6 is switched between the use state and the folded state, the spool 624 moves relative to the first base 621. In a modified implementation aspect, the number of the first base 621, the second base 623, and the bobbin 624 can be set to only one or more than two according to cost or structural strength adjustment factors.

When the user wants to collapse the table module 6 from the use state (as shown in FIG. 1) into the folded state (as shown in FIG. 8C), the user can approach the second base 623 by lifting the table main body 61 (Figure 8B), and push the table body 61 toward the direction of the first armrest rod 113a until the first base 621 overlaps the second base 623 and release the table main body 61, at this time the table main body 61 The side frame 11 will be attached to the side frame 11 downward by gravity, and vice versa. The user only needs to simply pull the table top body 61 upward and straddle it to the other side to use it. In detail, the table board body 61 uses a solid wood board with a smooth texture, so that the user can also absorb the aroma of natural logs when eating and using, and the method of storing the table board module 6 on the side can also occupy Minimize the space.

In summary, the wheelchair with rehabilitation function of the present invention is elastically connected to the pedals 33 through the telescopic rods 32 of the leg exercise unit 3, and the user's legs can push the pedals against the pedals. 33, and the telescopic rods 32 will be stretched to produce elastic reset force, which produces a certain impedance effect on the user’s legs, thereby training the user’s leg muscles, and assisting the user in riding a wheelchair. The effect of self-rehabilitation can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

1: Chair frame unit 11: side frame 111: rear pole 112: push handle 113: Handrail 113a: The first handrail 113b: second handrail 114: bottom bar 115: front pole 12: chair back 13: Chair seat 2: Wheel unit 21: rear wheel 22: steering wheel 3: Leg exercise unit 31: Crossbar 32: Telescopic pole 321: Casing section 322: adjustment section 323: positioning hole 324: Positioning rib 325: Telescopic section 33: Pedal 34: Linkage support mechanism 341: Upright pole 342: Auxiliary Rod 343: Extension Rod 344: connection segment 345: Extension 346: Activity Kit 347: Activity Management Department 35: fixed rod 36: The first cross grip 361: The first grip body 362: hole 363: Casing 37: second cross grip 371: The second grip body 372: Convex Rib 4: Active brake module 41: brake seat 42: lever 43: brake block 44: Linkage unit 5: Push handle brake module 51: Brake lever 52: Brake cable 6: Table board module 61: Table body 62: Line Rail Mechanism 621: First Base 622: Piercing Hole 623: second base 624: Spool

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view of an embodiment of the wheelchair with rehabilitation function of the present invention; Figure 2 is a perspective view illustrating a chair frame unit and a leg exercise unit of the embodiment; Figure 3 is a perspective schematic diagram illustrating a linkage support mechanism of the embodiment; Figure 4 is a perspective view illustrating two telescopic rods of the embodiment; FIG. 5 is a perspective view illustrating a first horizontal grip bar and a second horizontal grip bar of the embodiment; 6A and 6B are respectively a three-dimensional schematic diagram illustrating an active brake module of this embodiment; 7A and 7B are respectively a three-dimensional schematic diagram illustrating a push brake module of the embodiment; and 8A to 8C are respectively a three-dimensional schematic diagram illustrating a table top module of this embodiment.

1: Chair frame unit

11: side frame

111: rear pole

112: push handle

113: Handrail

114: bottom bar

115: front pole

12: chair back

13: Chair seat

2: Wheel unit

21: rear wheel

22: steering wheel

3: Leg exercise unit

31: Crossbar

32: Telescopic pole

33: Pedal

34: Linkage support mechanism

341: Upright pole

343: Extension Rod

35: fixed rod

36: The first cross grip

37: second cross grip

4: Active brake module

5: Push handle brake module

51: Brake lever

52: Brake cable

6: Table board module

Claims (8)

A wheelchair with rehabilitation function, comprising: a chair frame unit, including two side frames spaced and opposed to each other, a chair back set between the side frames, and a chair back between the side frames and located between the side frames The seat in front of the seat back, wherein each side frame has a rear upright rod and a push handle connected to the upper end of the back upright rod, and the seat back is arranged between the rear upright rods of the side frames; a wheel The unit includes two rear wheels respectively pivoted on the side frames and close to the seat back, and two steering wheels respectively connected to the side frames and located in front of the rear wheels; and a leg exercise unit, It comprises two telescopic rods respectively pivoted on the side frames and located in front of the seat and can be elastically telescopic, two pedals respectively connected to the ends of the telescopic rods, and a cross rod arranged across the push handles, And a linkage support mechanism arranged between the side frames and connected with the pedals, the linkage support mechanism including at least one upright rod rotatably connected to the crossbar and extending obliquely rearward, and at least one upright rod connected to the upright rod An auxiliary rod extending from the end of the rod in a left-to-right direction, and two extension rods rotatably connected to the auxiliary rod and fixed to the pedals respectively, the extension rods are located under the seat; the pedals can be used The leg of the person pushes and pushes the telescopic rods. The wheelchair with rehabilitation function according to claim 1, wherein each extension rod has a connecting section connected with the auxiliary rod, and an extension section connecting the connecting section and the corresponding pedal in an adjustable length. The wheelchair with rehabilitation function as described in claim 1, wherein each side frame is also There is a handrail rod connected to the rear vertical rod and extending forward, a bottom rod connected to the lower end of the rear vertical rod and extending forward, and a front vertical rod connected to the handrail rod and the bottom rod for the corresponding telescopic rod to pivot Rod. The wheelchair with rehabilitation function according to claim 3, wherein each telescopic rod has a sleeve section pivoted to the corresponding front upright rod, an adjustment section movably sleeved in the sleeve section, and A telescopic section that can be elastically expanded and contracted with respect to the adjustment section and connected to the corresponding pedal, the sleeve section has a plurality of positioning holes arranged at intervals along the axial direction, and the adjustment section is provided with an elastically compressible and snap-fitted into the positioning holes One of the positioning ribs can adjust the length of the telescopic rod. The wheelchair with rehabilitation function according to claim 1, wherein the leg exercise unit further includes two fixed rods respectively connected upright and connected to the front ends of the side frames, and one is rotatably connected to one of the fixed rods A first cross grip bar at the upper end, and a second cross grip bar rotatably connected to the upper end of the other fixed bar, and the first cross grip bar and the second cross grip bar are detachably connected to the fixed bars Between the rods. The wheelchair with rehabilitation function as described in claim 1, further comprising two active brake modules respectively arranged on the side frames and located on the front side of the rear wheels, and each active brake module includes an active brake module arranged on the bottom Lever brake seat, a pull rod rotatably arranged on the brake seat and located in front of the corresponding rear wheel, a brake block arranged on the brake seat and rotatably touching the corresponding rear wheel, and a connecting rod and the The linkage unit of the brake block, when the pull rod is pulled, will drive the linkage unit to move and act on the brake block to make it touch the corresponding rear wheel. The wheelchair with rehabilitation function according to claim 6, wherein each side frame has There is a rear upright rod and a push handle connected to the upper end of the rear upright rod. The chair back is arranged between the rear upright rods of the side frames. The wheelchair with rehabilitation function also includes two handles arranged on the push handle and The push handle brake modules respectively connected to the active brake modules, each push handle brake module has a brake lever arranged on the push handle and a brake connected to the brake lever and the brake shoe of the corresponding active brake module When the brake lever is pressed and the brake cable is pulled, the brake shoe will be pulled to the rear wheel. The wheelchair with rehabilitation function as described in claim 3, further comprising a table board module, defining the armrest bars as a first armrest bar and a second armrest bar, the table board module can be It is placed in the use state of the handrail rods and switched between the folded state standing on the outside of the first handrail rod, and includes a table board body, and a wire rail mechanism, the wire rail mechanism includes a rotatably arranged on the The first handrail is used to support the table body and has a first base with a through hole, and a second base that is fixed on the bottom side of the table body and is detachably engaged with the second handrail , And a spool movably pierced through the through hole and fixed to the second base. When the table top module is switched between the use state and the folded state, the spool is relative to the first base move.

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