KR101489945B1 - walking assistance apparatus for a wheel chair - Google Patents

Abstract

A walking assistance apparatus of a wheelchair for standing and seating relates to a wheelchair having a seat unit and a pair of main wheels in a frame thereof and enables a user to exercise lower body in a seated or standing state as being installed in a front surface side of the frame of the seat unit in the wheelchair. The present invention comprises: a base frame fixated on the frame; a first and a second walking assistance exercise unit installed in the base frame; and a driving unit installed in the base frame to alternately move a first and a second slider back and forth. The first walking assistance exercise unit has a first guide long hole in the longitudinal direction installed in the base frame and equipped with a first guide bracket, a first rotating foothold unit installed in a first support shaft to slide along the first guide long hole, and a first slider having a first vertical guide long hole formed vertically. The second walking assistance exercise unit has a second guide long hole in the longitudinal direction installed in the base frame and equipped with a second guide bracket, a second rotating foothold unit installed in a second support shaft to slide along the second guide long hole, and a second slider having a second vertical guide long hole formed vertically.

Description

A walking assist apparatus for a wheel chair for a standing and sitting wheelchair

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a walking assistance device, and more particularly, to a walking assistance device for a standing and sitting wheelchair which is capable of activating a lower body motion while sitting or standing on a wheelchair.

Generally, aging society is entering into aging society due to medical development, economic development, changes in consciousness structure, and declining birth rate and life expectancy due to family planning projects. People with disabilities are increasingly participating in social activities. Due to diversification and diversification of society, the number of people is also increasing.

Especially, the elderly people and the elderly people usually use a walking aid such as a cane or a wheelchair to overcome the inconvenience of the behavior. A walking auxiliary equipment (A walking auxiliary equipment) refers to the equipment used to help people with mobility difficulties, in detail, due to various diseases and accidents such as arm or leg or spine line ㅇ acquired deformity, paralysis and aging Lost Physical Activity It is one of the medical devices that enables the self-walking in place of the strength.

Such walking aids include various types of walking aids such as an artificial leg, a wheel chair for carrying the body, and a cart type rolling walker for supporting the upper body, .

Among them, the above-mentioned rolling walker (hereinafter referred to as a "walking aiding device") has a structure in which the upper body can be tilted back and forth, and is performed after long-term care in a medical institution due to a hemiplegic patient or accident resulting from a stroke. It has been widely used for lower body function recovery training or as an aid for the elderly (elderly) to walk.

However, there is a problem in that the user can not perform the lower body exercise such as the ankle and the rehabilitation exercise together with the caregiver in the case of the bad luck using the wheelchair, especially,

In order to solve such a problem, Korean Patent Registration No. 1191902 discloses a rehabilitation in wheelchair. This rehabilitation inductive wheelchair provides mechanical energy for driving a pedal that moves the lower body to a wheel provided on the wheelchair. A pair of pedals that rotate while drawing a circular trajectory are provided on the left and right sides of the wheelchair frame, housing; And a power transmission mechanism installed in the exercise device housing and transmitting mechanical energy generated by rotation of the wheels to the pair of pedals to enable rotation of the pedal when the wheelchair is moved .

Korean Patent Publication No. 2011-0026281 discloses an exercise aids. The posted exercise assisting mechanism is configured to bring the lower end of the user into motion by causing the pedal to rotate using the mechanical energy generated by the rotation of the driving wheel so that the driving wheel is rotated when the wheelchair is running .

However, since the exercise using the wheelchair uses the driving force according to the movement of the wheelchair, the exercise aids must be assembled to the wheelchair in order to use the exercise aids using the driving force of the wheelchair. In addition, since the driving force of the wheel must be generated by moving the wheelchair on which the torso is sitting, the exercise aids can not be operated if the wheelchair does not move. Therefore, in order to exercise the lower body using the wheelchair equipped with the exercise assisting device, a separate exercise assistant is required.

Korea Patent Publication No. 2011-0026281

SUMMARY OF THE INVENTION It is an object of the present invention to provide a walking aid apparatus for a standing and sitting wheelchair which can perform a lower body exercise while sitting on or standing on a wheelchair,

Another object of the present invention is to provide a walking aid apparatus for a standing and sitting wheelchair in which a torso in a wheelchair can independently exercise a lower body without a helper.

In order to solve the above problems, the present invention provides a walking aid apparatus for a standing and sitting chairperson, comprising: a wheelchair having a seat portion and a pair of main wheels mounted on the frame; The base frame fixed to the frame and the foot of the molten woo installed on the base frame are guided in a manner similar to the motion of the knee and the ankle joint in walking of a normal person, By moving forward and backward both feet, the toe part of the advancing foot is raised, the heel is lowered, the heel of the backward foot is raised, and the backward toe is lowered to perform the lower body strength exercise and the knee and ankle joint exercise The first and second walking-assistance exercise units,

The first walking-assistance exercise unit includes a first guide bracket formed in a longitudinal direction of the base frame and having a first guide bracket and a first guide shaft slidable along the first guide slot, A first rotation support plate provided on the base frame and supporting both ends of the first support shaft so that the first support shaft of the first rotation support plate can be moved back and forth along the first guide slot, And a first slider having one vertical guide slot,

The second walking-assistance exercise unit includes a second guide bracket formed on the base frame in a longitudinal direction thereof and provided with a second guide bracket and a second support shaft slidable along the second guide slot, And a second rotation support plate provided on the base frame and supporting both ends of the second support shaft so that the second support shaft of the second rotation support plate can be moved back and forth along the second guide slot, And a second slider having two vertical guide slots,

And a drive unit installed on the base frame for alternately advancing and retracting the first and second slides.

In the present invention, it is preferable that the first and second rotation footrests have at least two support rods interlocked upward from the rotation shaft, and a dividing footrest rotatably mounted on the support rods, The first and second guide slots are respectively formed in the first and second guide brackets. The first and second guide slots are formed in the first and second guide brackets. The first and second guide holes are formed in the first and second guide brackets. Have a study. The driving unit includes first and second racks respectively formed on the corresponding sides of the first slider and the second slider, a pinion coupled with the first and second racks, And a motor for reciprocating the first and second sliders by forward and reverse rotation of the pinion.

The walking assist device of the standing and sitting wheel chair according to the present invention can reduce the burden due to the movement because the lower leg can perform the lower body motion necessary for walking while sitting on the wheel chair and the structure is relatively simple.

In addition, the auxiliary walking apparatus according to the present invention can maximize the exercise effect for walking since the ankle can be rotated during the lower body motion of the torso.

1 is a perspective view showing a state in which a walking aid for a standing and sitting wheelchair according to the present invention is installed in a wheelchair;
Fig. 2 is a side view of the walking aid of the standing and sitting wheelchair shown in Fig. 1,
FIG. 3 is an exploded perspective view of a walking aid for a standing and sitting wheelchair according to the present invention,
Figs. 4 and 5 are plan views showing an operating state of the walking aid of the standing and sitting wheel chair,
Figs. 6 to 7 and 8 are side views showing the operating state of the walking aid of the standing and sitting wheel chair, Fig.

A walking aid apparatus for a standing and sitting wheel chair according to the present invention is mounted on a wheelchair and can perform a lower body and an ankle movement for walking in a sitting position.

A walking assistant apparatus 10 for a standing and sitting wheelchair according to the present invention includes a base frame 20 fixed to a frame 102 of a seat 101 of a wheelchair 100, 20 for moving the lower body forward and backward to move the lower body.

The first walking assist movement unit 30 includes a pair of first guide brackets 32 parallel to the base frame 20 and having a first guide slot 31 formed in the longitudinal direction thereof, The first support shaft 36 of the first turn table 35 is slidably installed in each of the first guide slots 31 of the first guide plate 32. The first rotating pedal portion 35 includes a plurality of first supporting rods 37 extending from a first supporting shaft 36 slidable along the first guide elongated hole 31, 37 which are rotatably mounted on the first support pedestal portion 38. Preferably, the support rod 37 and the first support pedal portion 38, which is rotatably supported by the support rod 37, are provided with three support portions for supporting the center portion, the front side, and the rear side of the guide pin, Do not. The first support rod 37 that supports the front side and the rear side of the first support members has a structure bent to have a predetermined radius of curvature from both sides of the first support shaft 36 toward the upper side. The first support rod 37 and the first support pedal portion 38 are not limited to the above-described embodiments, but may be of any structure capable of supporting the foot of the molten metal. A separate fixing unit 39 for fixing the foot 300 of the molten metal is installed on the supporting foot plate 38 located at the center of the first supporting foot plates 38. The fixing unit 39 May be a band having elasticity, or a band-like band capable of being joined and separated using a belt tape. The first guide slot 31 has a first horizontal slot 31a installed horizontally in the first guide bracket 32 and a first horizontal slot 31a formed upward from both ends of the first horizontal slot 31a. And a bullet hole 31b.

The first guide bracket 31 and the first guide bracket 31 are connected to the base frame 20 so that the first support shaft 36 of the first rotation support plate 35 is engaged with the first guide bracket 31, And a first slider 40 having a first vertical guide slot 41 in which an end of the first support shaft 36 is inserted and supported. A first guide unit rail 42 for smooth movement of the first slider 40 is provided between the first slider 40 and the base frame 20. The first guide unit rail 42 has a first rail 41a installed on the base frame 32 so as to move while keeping the first slider 40 parallel to the first guide bracket 31 And a first rail groove 41b coupled to the first rail 41a is formed on the lower surface of the first slider 40 so as to be coupled to each other. The first guide rail unit 42 is not limited to the above-described embodiment and may be configured to support the first slider 40 with respect to the base frame 31 It is possible if it can move. The first slider 40 may include first and second members 40a and 40b provided on both sides of the first guide bracket 32. The first and second members 40a and 40b The first vertical guide holes 41 are formed on the mutually facing sides to support both ends of the first support shaft 36. The first and second members 40a and 40b are spaced apart from each other by a connecting member 40c.

The first slider 40 is moved forward and backward by a drive unit 80 to be described later.

The second walking-assistance exercise unit (50) has substantially the same configuration as the first walking-assistance exercise unit (30). A pair of second guide brackets 52 having a second guide slot 51 formed in the longitudinal direction of the base frame 20 are installed in parallel to each other and the second guide slots 51 of the second guide bracket 52 The second support shaft 56 of the second turn table portion 55 is slidably installed.

 The second rotating pedestal portion 55 includes a plurality of second supporting rods 57 extending from a second supporting shaft 56 slidable along the second guide elongated hole 51, And a second supporting foot part 58 rotatably mounted on the first and second supporting frames 57 and 57. A separate fixing unit 59 is provided on the supporting foot part 58 located at the center of the second supporting foot parts 58 so as to fix the foot 300.

The second guide bracket 31 is provided on the base frame 20 so as to be parallel to the second guide shaft 51 and to move the second support shaft 56 of the second rotation support plate 55 along the second guide slot 51 And a first slide 60 in which a second vertical guide slot 61 is formed in which the end of the second support shaft 56 is inserted and supported. A second guide unit rail 62 for smooth movement of the second slider 60 is provided between the second slider 60 and the base frame 20.

Meanwhile, the first slider 40 and the second slider 60 are reciprocally moved by the drive unit 80 in an alternating manner.

The drive unit 80 is provided with first and second racks 81 and 82 on opposite sides of the first and second sliders 40 and 60. The first and second racks 81 and 82 And a pinion 83 which is engaged with the pinion 83 is provided. The pinion 83 is rotated by a motor 84 having a speed reducer. A motor 84 coupled to the rotation axis of the pinion 83 and rotating the pinion 83 in the forward and reverse directions is installed in the base frame 20. It is preferable that the rotation axis of the pinion 83 is supported by the base frame 20 so that the position of the pinion 83 is not moved during driving. Although not shown in the drawing, the driving unit includes a control unit for controlling the motor to rotate in normal and reverse directions, and a power supply unit for supplying power. A sensor such as a limit switch installed on the base plate for normal / As shown in FIG.

The first and second walking assistant exercise units 30 and 50 are not limited to the above embodiments and the first and second sliders 40 and 60 of the first and second walking assistant exercise units 30 and 50 may be separate independent driving units As shown in FIG. In this case, the first and second walking-assistance exercise units 30 and 50 may be separately manufactured and attached to the front of the wheelchair 100.

Reference numeral 400 denotes a wheel.

The operation of the walking aiding apparatus for a standing and sitting wheelchair according to the present invention constructed as described above will now be described with reference to FIGS.

First, in order to perform a lower body exercise in which a standing or standing person can sit on a wheelchair, both feet are placed on the first and second rotation footrests 35 and 55, and the feet 300 Respectively. At this time, the fixing of the feet by the fixing units 39 and 59 is fixed to the first and second supporting foot portions 38 and 58 located at the center, but the present invention is not limited thereto.

When the fixing of the feet is completed on the first and second footrests 35 and 55 as described above, the first and second turnrest footrests 35 and 55 are moved forward and backward by using the drive unit 80 Lt; / RTI > That is, the pinion 82 is rotated by driving the motor 84 of the drive unit 80, and the first and second racks 81 and 82 are engaged with the first and second sliders 40 60 are relatively moved. The first and second racks 81 and 82 are formed on the first and second sliders 40 and 60 so that the first and second racks 81 and 82 rotate to rotate the first and second sliders 40 and 60, (60) moves relative to each other as shown in Fig. When the pinion 83 rotates clockwise, the first slider 40 advances and the second slider 60 retracts.

When the first slider 40 advances as described above, the first support shaft 36 supported by the first vertical guide slot 41 of the first slider 40 is formed in the first guide bracket 32 And moves along the first guide slot 31. At this time, the first support shaft 36 moves along the horizontal portion 31a of the first guide slot 31 and moves along the inclined portion 31b formed at the end of the first guide slot 31, 36) will rise. 6 and 7, the left foot of the molar support supported by the first rotation supporting portion 35 raises the toes of the feet and descends the heels after advancing horizontally as shown in FIGS. In this process, since the guide bar 32a is provided on the front end side of the first guide bracket 32, the first guide bracket 32 is brought into contact with the first support rod 37, 1 support shaft 36 in a clockwise direction. Therefore, the foot of the hanwoo is raised from the normal gait, then the toe is raised, and the heel is lowered.

The above-mentioned principle is based on the fact that when the body is fixed to a seat such as a seat and a chair of a wheelchair and a leg-like movement similar to walking is performed, the operation of interlocking the left and right feet is performed, In the case where the left and right feet reach the end of the stride at which the legs reach the feet when the legs move in the same manner as the walking, the first support shaft 36 is lifted, so that the ankle can naturally move.

When the second slider 60 is retracted, the second support shaft 56 supported by the second vertical guide slot 41 of the second slider 60 is guided by the second guide shaft 41, And is retracted along the second guide slot 51 formed in the bracket 52. The second support shaft 56 moves along the horizontal portion 51a of the second guide slot 51 and moves along the inclined portion 51b formed at the end of the second guide shaft 51. Therefore, . Accordingly, the heel of the right foot of the molar support supported by the second rotation receiving portion 55 is lifted after being moved in the horizontal direction. In this process, since the guide bar 52a is provided on the front end side of the second guide bracket 52, the second guide bracket 52 contacts the second support rod 57 installed on the front end side, And is rotated clockwise about the support shaft 56 by a predetermined angle. Therefore, the right foot of Huwu is pulled back from the usual gait, and the heel is lifted.

When the pinion 83 is rotated counterclockwise by the drive unit 80, the first slider 40 is retracted and the second slider 60 is advanced. In the above-described operation method, the left foot of the molar can be retracted, and the right foot can be expected to move forward and walk.

As described above, according to the present invention, the lower body movements can be activated by moving the feet of the torso forward or backward while sitting or standing on the wheelchair. In addition, the lower body of Huanwu can be rehabilitated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

The present invention can be widely applied not only to lower body movements of a person sitting on a wheelchair but also to various exercise apparatuses.

Claims (4)

A wheelchair in which a seat portion and a pair of main wheels are mounted on a frame, a base frame fixed to the frame, the base frame being mounted on a frame on the seat front side of the wheelchair, And a first and second gait-assisting movement units installed on the base frame for moving the lower body back and forth by moving the feet of the body,
The first walking-assistance exercise unit includes a first guide bracket formed in a longitudinal direction of the base frame and having a first guide bracket and a first guide shaft slidable along the first guide slot, A first rotation support plate provided on the base frame and supporting both ends of the first support shaft so that the first support shaft of the first rotation support plate can be moved back and forth along the first guide slot, And a first slider having one vertical guide slot,
The second walking-assistance exercise unit includes a second guide bracket formed on the base frame in a longitudinal direction thereof and provided with a second guide bracket and a second support shaft slidable along the second guide slot, And a second rotation support plate provided on the base frame and supporting both ends of the second support shaft so that the second support shaft of the second rotation support plate can be moved back and forth along the second guide slot, And a second slider having two vertical guide slots,
And a drive unit installed on the base frame for alternately advancing and retracting the first and second slides. The method according to claim 1,
Wherein the first and second rotation pedal portions are provided with at least two support rods interlocked upward from the rotation shaft and a divider foot which is rotatably mounted on the support rods, Wheelchair pacemaker. The method according to claim 1,
The first and second guide slots are formed in the first and second guide brackets, respectively. The first and second guide slots include first and second horizontal guides installed in the horizontal direction, first and second guide holes formed in the first and second guide brackets, And an arc-shaped guide groove for guiding the seat back. The method according to claim 1,
The drive unit includes first and second racks respectively formed on the corresponding sides of the first slider and the second slider, a first and a second pinion coupled with each other, A motor for rotating the pinion forward and backward to rotate the first and second sliders in a forward and reverse direction; a control unit for controlling the motor; and a power supply for supplying power.

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