TWI687214B - Human-driven wheelchair - Google Patents

Abstract

A human-driven wheelchair includes a body, an armrest frame and a transmission module. Wherein the body includes a bracket, a seat, a pair of driven wheels and a pair of driving wheels, the pair of driving wheels are arranged on the inner side of the bracket and connected to a linking wheel on the outer side, the armrest frame is fixed on the bracket, and It is provided with a bearing part corresponding to the back of the seat, parallel to the bracket on both sides and extending forward with a section of armrest, the transmission module is wrapped around the inner side of the armrest frame, one of which is paired The first transmission wheel and the pair of second transmission wheels are respectively power connected through a transmission element, and then the second transmission wheel is used to be power connected with the linked wheel, according to this creation, the volume is reduced and the operation can be performed in a narrow space. Waiting for the operation of the handle to move, and can help people with reduced mobility to exercise upper limbs.

Description

Human-driven wheelchair

This creation belongs to the field of medical mobility aids, especially a human-driven wheelchair, which hides the driving wheels and driven wheels for movement inside the body, greatly reduces the volume and can move in a narrow space, And can use the movement of the operation to train the upper limbs.

According to the press, physically disabled persons account for the most of the total number of people with physical and mental disabilities in Taiwan each year. For patients who are not good at walking, most of them use assistive devices such as crutches, wheelchairs or walking aids to assist in movement, and wheelchairs are physical disabilities It is one of the indispensable assistive devices. About 70% of people with reduced mobility are heavy users who rely on wheelchairs every day. Most of the wheelchairs are currently designed by hand-push type. There are many different types of wheelchairs, but hand-push wheelchairs still have the highest market share, and there are still many problems to be solved.

Take the brand with the largest market share of wheelchair assistive devices in China as an example. There are three major categories of products for this brand. Among them, hand-held wheelchairs account for 60%. In terms of price, most consumers will choose to buy, compared to electric. Wheelchairs are cheap traditional hand-push wheelchairs; however, the author has done a lot of data collection and investigation on hand-push wheelchairs, and according to user experience, it is found that these hand-push wheelchairs are propelled by means of pushing wheels. The grip part of the circle, these users push the wheel forward by applying force along the tangential direction of the wheel. The operation action is too large and it is easy to cause long-term injury to the arms. Moreover, due to the large size of the wheelchair and the problem of long-term use injury, Both reduce wheelchair use The autonomy of the user makes them have to rely on the care of another person, which is also the main reason for the reduction of the user's autonomy and self-confidence.

However, the hand-held wheelchair is relatively bulky. When wheelchair users are alone in certain indoor environments, their movements are relatively inconvenient. For example, when passing through certain narrow passages, they are easily caught or knocked down, which makes the wheelchair use. The person cannot reach the place they want to go alone. In addition, the current traditional hand-push wheelchair propulsion method is a very low-efficiency action. During the propulsion process, the repeated upper limb movements cause 30 to 50% of wheelchair users. , With experience of shoulder, elbow and wrist pain.

In order to improve these problems, the author has redesigned the operation mode in particular, using the principle that the operating hand moves the linked gear to move the wheel, so that the occupant can move in a more labor-saving manner without pushing his own weight with both arms. Because this new operation method does not need to directly touch the large wheels on both sides, the large wheels are reduced to move under the seat to greatly reduce the width of the wheelchair, making this creation more labor-saving in operation than the existing hand-held wheelchairs. Reducing the pressure on the upper limbs also makes wheelchair users more willing to go out and connect with the society to enhance self-confidence.

In view of this, one of the purposes of this creation is to provide a human-driven wheelchair, using well-designed a body, an armrest frame and a transmission module to change the use defects and operation methods of the original hand-push wheelchair It achieves a reduction in volume and can be moved by operating these operating handles in a narrow space, and can help people with disabilities to perform upper limb movements and other functions.

In order to achieve the above purpose, the human-powered wheelchair of the present invention includes: a body, including a bracket, a seat, a pair of driven wheels and a pair of driving wheels, the rear end of the bracket extends downward and forward with a pair of Parallel frame, the spacing between the bracket and the pair of parallel frames corresponds to the width of the seat, and The seat is arranged on the top of the bracket, the driven wheel is arranged at the front end of the pair of parallel skeletons, the pair of driving wheels are arranged at the inner side of the rear end of the pair of parallel skeletons, that is, the pair of driving wheels are wrapped in the bracket, In addition, each driving wheel is connected with a linkage wheel and is located outside the pair of parallel skeletons; an armrest frame, which corresponds to the shape of the seat, is formed into a zigzag shape from above, and the armrest frame corresponds to the back of the seat. A load-bearing portion is provided, and the two sides are respectively parallel to the bracket and a section of armrest is extended forward. The front end of each armrest corresponds to the bracket and an installation portion is extended diagonally downward and forward to fix the armrest frame to the bracket respectively The back portion of the seat and the two sides of the bracket, and a supporting portion extending diagonally backward from each mounting portion toward the one transmission wheel; and a transmission module, which are respectively wrapped around the inner sides of the armrest frame And located between the front section of the armrest and the supporting portion, the transmission module includes a pair of operating handles, a pair of first transmission wheels, a pair of second transmission wheels, and a pair of transmission elements, each operating handle is upright Set on the inner surface of the armrest frame, the first transmission wheel and the second transmission wheel are wrapped in the armrest frame and are dynamically connected through the one transmission element, and one end of the bottom of the operating handle penetrates into the The armrest frame is integrated with the first transmission wheel, and the second transmission wheel is located on the side of the linkage wheel and is in power connection with it; according to this, the at least one operating handle is pushed forward or backward or simultaneously When the handle is operated, one of the driving wheels or the two driving wheels is driven to rotate, so that it can move forward, backward and turn left and right.

In an embodiment, the armrest frame is an arc-shaped structure formed by the bearing portion and the two armrests, each armrest is composed of an inner cover and an outer cover, and the inner cover and the outer cover The outer cover corresponds to the first transmission wheel and the second transmission wheel and is provided with a first positioning part and a second positioning part to wrap the first transmission wheel and the second transmission wheel therein; The outer cover is provided with a protection section corresponding to the interlocking wheel to cover the interlocking wheel.

In another embodiment, the surface of the operating handle is covered with an anti-slip layer, and the anti-slip layer is made of foam, silicone, or other materials with elasticity and anti-slip effect.

In yet another embodiment, the bracket is provided with a looping portion at the back of the seat, and two support plates corresponding to the bottom of the seat, and a plurality of fixing holes are provided on each support plate, To fix the seat with screws, and the two front ends of the one supporting plate respectively correspond to the inner cover of each armrest, and a fixing piece is bent to fix the two inner covers with screws .

In addition, a pedal is provided on the inner side of the two driven wheels, respectively, for the user to step on and rest.

In order to meet the actual needs, the pair of first transmission wheels and the pair of second transmission wheels in this creation are both pulleys, and the transmission element is a transmission belt, or the pair of first transmission wheels and the pair of second transmission wheels are both It is a gear, and the transmission element is a transmission chain.

1: human-driven wheelchair

11: Ontology

111: bracket

1111: Parallel skeleton

1112: Ring rest

1113: Support plate

11131: fixed piece

1114: Fixing hole

112: Seat

113: driven wheel

114: driving wheel

115: Interlocking wheel

116: Pedal

12: armrest frame

121: Carrying Department

122: armrest

1221: Installation Department

1222: Support

1223: Inner cover

12231: The first positioning part

1224: outer cover

12241: Second positioning part

1225: Protection section

13: Transmission module

131: Operation handle

1311: Anti-slip layer

132: The first transmission wheel

133: Second transmission wheel

134: Transmission element

FIG. 1 is an exploded perspective view of a preferred embodiment of the present creation.

FIG. 2 is a three-dimensional appearance view after assembly in the preferred embodiment of the present invention.

Fig. 3 is a schematic diagram (1) of the state of the forward operation in the preferred embodiment of the authoring.

FIG. 4 is a schematic diagram (2) of the state during the turning operation in the preferred embodiment of the present invention.

In order for your review committee to clearly understand the content of this creation, please only use the following description with the drawings, please refer to it.

Please refer to FIGS. 1, 2 and 3~4, which are respectively a three-dimensional exploded view of the preferred embodiment of the creation and a three-dimensional appearance after assembly, as well as schematic diagrams of various states during operation. As shown in the above figures As shown, the human-powered wheelchair 1 referred to in this creation includes a body 11, an armrest frame 12, and a transmission module 13.

The body 11 includes a bracket 111, a seat 112, a pair of driven wheels 113 and a pair of driving wheels 114. The rear end of the bracket 111 extends downward and forward with a pair of parallel frames 1111, the bracket 111 and the pair The distance between the parallel frames 1111 corresponds to the width of the seat 112, and the seat 112 is arranged on the top of the bracket 111, the driven wheel 113 is arranged below the front end of the pair of parallel frames 1111, and the pair of driving wheels 114 are arranged on The inside of the rear end of the pair of parallel frames 1111, that is, the pair of driving wheels 114 are wrapped in the bracket 111, and each driving wheel 114 is connected with a linkage wheel 115 and is located outside the pair of parallel frames 1111; It is to say that the bracket 111 corresponds to a backrest portion 1112 at the back of the seat 112, and two support plates 1113 corresponding to the bottom of the seat 112, and a plurality of fixings are provided on each support plate 1113 The hole 1114 is provided for screwing and fixing the seat 112 thereon, and a pedal 116 is respectively arranged inside the two driven wheels 113.

The armrest frame 12 corresponds to the shape of the seat 112 and forms a zigzag shape when viewed from above. The armrest frame 12 corresponds to the back of the seat 112 and is provided with a bearing portion 121, the two sides of which are parallel to the bracket 111 and forward A section of armrest 122 is extended, and the front end of each armrest 122 corresponds to the support 111 and a mounting portion 1221 extends obliquely downward and forward to fix the armrest frame 12 to the back portion of the seat 112 and the support respectively On both sides of 111, a supporting portion 1222 extends diagonally backward from each mounting portion 1221 toward the one transmission wheel 115; and the armrest frame 12 is a curved arc formed by the bearing portion 121 and the two armrests 122 Each armrest 122 is composed of an inner cover 1223 and an outer cover 1224. The outer cover 1224 corresponds to the interlocking wheel 115 and extends a protective section 1225 to cover the interlocking wheel 115. Inside, the two front ends of the other support plate 1113 respectively correspond to the inner cover 1223 of each armrest 122 and are bent with a fixing piece 11131 for screwing and fixing the two inner covers 1223 thereon.

The transmission module 13 is wrapped around the inner side of the armrest frame 12 and located between the front section of the armrest 122 and the support portion 1222. The transmission module 13 includes a pair of operating handles 131, a For the first transmission wheel 132, a pair of second transmission wheels 133 and a pair of transmission elements 134, each operating handle 131 is erected on the inner surface of the armrest frame 12, the first transmission wheel 132 and the second The transmission wheel 133 is wrapped in the armrest frame 12 and is dynamically connected through the one transmission element 134, wherein the pair of first transmission wheels 132 and the pair of second transmission wheels 133 are both pulleys, and the transmission element 134 is The transmission belt, or the pair of first transmission wheels 132 and the pair of second transmission wheels 133 are both gears, and the transmission element 134 is a transmission chain, as shown in the figure, a gear is used to match the transmission chain design; and, One end of the bottom of the operating handle 131 penetrates into the armrest frame 12 and is connected with the first transmission wheel 132, and the second transmission wheel 133 is located on the side of the interlocking wheel 115 and is in power connection with it; The surface of the operating handle 131 is covered with a layer of anti-slip layer 1311, and the anti-slip layer 1311 is made of foam, silicone or other materials with elasticity and anti-slip effect to increase the user's comfort when holding and using Sex. It should be noted that the inner cover 1223 and the outer cover 1224 correspond to the first transmission wheel 132 and the second transmission wheel 133 and are provided with a first positioning portion 12231 and a second positioning portion 12241 to connect the first After the transmission wheel 132 and the second transmission wheel 133 are positioned, they are wrapped in it.

In summary, when the author is operating, according to this, when the two operating handles 131 are simultaneously pushed forward at the starting position at the same time, the two driving wheels 114 are simultaneously rotated forward by an angle to achieve For the purpose of advancing, when you need to continue to advance, you can continue to push the two operating handles 131 to swing forward, so that the human-powered wheelchair 1 can continue to advance; conversely, when the two operating handles 131 are pushed synchronously to start When the position swings backwards at the same time, the two driving wheels 114 simultaneously rotate backward by an angle to achieve the purpose of backward movement. When the backward movement needs to be continued, the two operating handles 131 are continuously pushed to swing backward, so that the The human-driven wheelchair 1 continues to recede. In addition, when a turn is to be made, when one operating handle 131 is pushed forward to swing forward at the starting position, the corresponding driving wheel 114 is driven to rotate forward to make the other driving wheel 114 A fixed pivot position is formed, and then a forward turning mode is carried out; conversely, when the operating handle 131 is pushed once to push backwards at the starting position, and the driving wheel 114 corresponding to the driving is rotated backward, the other driving Wheel 114 forms immobile Pivot position to perform a backward turning pattern. According to the changes, the use defects and operation methods of the original hand-push wheelchairs are changed, the volume can be reduced, and the operation handles can be moved in a narrow space, and it can help people with reduced mobility to exercise upper limbs and other functions.

However, the above are only the preferred embodiments of this creation, and are not intended to limit the scope of the implementation of this creation, so those with ordinary knowledge in the technical field of the subject, or familiar with this technology, will perform various components. Equivalent substitutions, or changes that are re-connected in series, should be within the scope of the patent of this creation if they are equally changed and modified without departing from the spirit and scope of this creation.

1: human-driven wheelchair

11: Ontology

111: bracket

1111: Parallel skeleton

1112: Ring rest

1113: Support plate

11131: fixed piece

1114: Fixing hole

112: Seat

113: driven wheel

114: driving wheel

115: Interlocking wheel

116: Pedal

12: armrest frame

121: Carrying Department

122: armrest

1221: Installation Department

1222: Support

1223: Inner cover

12231: The first positioning part

1224: outer cover

12241: Second positioning part

1225: Protection section

13: Transmission module

131: Operation handle

1311: Anti-slip layer

132: The first transmission wheel

133: Second transmission wheel

134: Transmission element

Claims (10)

A human-driven wheelchair includes a body including a bracket, a seat, a pair of driven wheels and a pair of driving wheels, and a rear end of the bracket is provided with a pair of parallel frames extending downward and forward, the bracket and the The spacing between the parallel skeletons corresponds to the width of the seat, and the seat is arranged on the top of the bracket, the driven wheel is arranged at the front end of the pair of parallel skeletons, the pair of driving wheels are arranged inside the rear end of the pair of parallel skeletons, and That is, the pair of driving wheels are wrapped in the bracket, and each driving wheel is connected with a linkage wheel and is located outside the pair of parallel frames; an armrest frame, which corresponds to the shape of the seat and is formed from above The armrest frame corresponds to the back of the seat and is provided with a load-bearing portion. The two sides are respectively parallel to the bracket and extend forward with a section of armrest. The front end of each armrest corresponds to the bracket and extends obliquely downward and forward A mounting portion for fixing the armrest frame to the back portion of the seat and the two sides of the bracket, and a supporting portion extending diagonally backward from each mounting portion toward the one transmission wheel; and a transmission die Group, which are respectively wrapped on the inner side of the armrest frame and between the front section of the armrest and the support portion. The transmission module includes a pair of operating handles, a pair of first transmission wheels, a pair of second transmission wheels and A pair of transmission elements, each operating handle is set upright on the inner surface of the armrest frame, the first transmission wheel and the second transmission wheel system are wrapped in the armrest frame and are dynamically connected through the one transmission element , And, one end of the bottom of the operating handle penetrates into the armrest frame to be integrated with the first transmission wheel, and the second transmission wheel is located on the side of the interlocking wheel and is in power connection with it; according to this, the current When the at least one operating handle is pushed back or the two operating handles are pushed back and forth at the same time, one of the driving wheels or the two driving wheels is driven to rotate, so that it performs forward, backward and left and right turning movements. The human-driven wheelchair as described in item 1 of the patent application scope, wherein the armrest frame is an arc-shaped structure formed by the bearing portion and the two armrests. The human-driven wheelchair as described in item 2 of the patent application scope, wherein each armrest is composed of an inner cover and an outer cover, and the inner cover and the outer cover correspond to the first transmission wheel and The second transmission wheel is provided with a first positioning part and a second positioning part to wrap the first transmission wheel and the second transmission wheel therein. The human-driven wheelchair as described in item 3 of the patent application scope, wherein the outer cover corresponds to the interlocking wheel and a protective section is extended to cover the interlocking wheel. The human-driven wheelchair as described in item 4 of the patent application scope, wherein the surface of the operating handle is covered with a layer of anti-slip layer, and the anti-slip layer is selected from foam, silicone or other elastic and non-stop Material with slip effect. The human-driven wheelchair as described in item 5 of the patent application scope, wherein the bracket is provided with a looping portion at the back of the seat, and two supporting plates are provided at the bottom of the seat, and The support plate is provided with a plurality of fixing holes for screwing and fixing the seat thereon. The human-driven wheelchair as described in Item 6 of the patent application scope, wherein the two front ends of the one support plate respectively correspond to the inner cover of each armrest and are bent with a fixing piece for screwing to fix the two inner Cover it. The human-driven wheelchair as described in item 7 of the patent application scope, wherein each of the two driven wheels is provided with a pedal inside. The human-driven wheelchair as described in item 8 of the patent application scope, wherein the pair of first transmission wheels and the pair of second transmission wheels are both pulleys, and the transmission element is a transmission belt. The human-driven wheelchair as described in item 8 of the patent application scope, wherein the pair of first transmission wheels and the pair of second transmission wheels are both gears, and the transmission element is a transmission chain.

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