KR20160122456A

KR20160122456A - combination structure of wheelchair and drive unit

Info

Publication number: KR20160122456A
Application number: KR1020150052320A
Authority: KR
Inventors: 김해섭; 김성섭
Original assignee: 주식회사 네오엘에프엔
Priority date: 2015-04-14
Filing date: 2015-04-14
Publication date: 2016-10-24
Also published as: KR101697761B1

Abstract

The present invention relates to a coupling structure of a wheelchair and a driving device, enabling a driving device to be conveniently coupled to and separated from a wheelchair through operation of a first fixing unit and a second fixing unit while a user sits on the wheelchair. Therefore, the coupling structure of a wheelchair and a driving device significantly reduces a storage space of the wheelchair and enables the wheelchair to be easily stored. Moreover, a coupling unit is separated from the wheelchair when the wheelchair is not used, and the driving device is held by enabling a support unit to come in contact with the ground surface to improve user convenience.

Description

A combination structure of a wheelchair and a drive unit

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a coupling structure between a wheelchair and a driving device, and more particularly, to a coupling structure between a wheelchair and a driving device, Therefore, the storage space of the wheelchair is drastically reduced, the vehicle is easily loaded, the coupling part is separated from the wheelchair when the wheelchair is not in use, and the supporting part is brought into contact with the ground to mount the driving device. Thus, the combination of the wheelchair and the driving device Structure.

Generally, a wheelchair is a walking aids for elderly people who can not use legs or have trouble walking.

The wheelchair has ring-shaped knobs on the outer side of both wheels, and the wheelchair user rolls the knob wheel to move the wheelchair.

However, such a wheelchair has a problem in that the occupant needs a lot of labor when the vehicle is traveling near by using the vehicle or when it is somewhat long distance to use the wheelchair, resulting in physical fatigue.

In order to solve such a problem, a 'driving assist system for a passenger wheelchair' disclosed in Japanese Patent Application Laid-Open No. 10-2002-73943 has been disclosed.

However, since the power unit is integrally mounted on the body of the wheelchair, the basic weight of the wheelchair is increased, so that it is very difficult for the occupant of the wheelchair to move the wheelchair manually, and the power unit is mounted on the wheelchair in a basic manner. There is a problem in that an economical burden is generated for the general disabled or the elderly to use because the price is sold at a very high price.

In recent years, a driving device capable of automatically driving a wheelchair has been used in combination with a frame of a wheelchair in order to solve such a problem, and a "detachable power transmission device of a wheelchair" has been registered in Korean Registered Utility Model No. 20-0381749 .

In the above-mentioned prior invention, the transmission device for driving the wheelchair is detachably mounted on the wheelchair to move the wheelchair. However, since the traction frame connecting the transmission device and the wheelchair is large in volume, it is inconvenient for storage and movement. If you do not use a wheelchair, you have to lift the front part of the wheelchair to separate it from the towing frame, so it is very inconvenient for the elderly and the disabled. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art, and an object of the present invention is to provide a wheelchair- The present invention provides a coupling structure of a wheelchair and a driving device that greatly reduces the storage space of a wheelchair and facilitates vehicle loading.

Another object of the present invention is to provide a combined structure of a wheelchair and a driving device in which convenience of use is improved because a driving device is mounted by separating a coupling part from a wheelchair when the wheelchair is not used and the supporting part is brought into contact with the ground.

The present invention relates to a locking bracket that is fixed to a handle shaft of a driving device for driving a wheelchair using a battery and is adapted to receive and engage with a coupling portion;

An engaging portion coupled to the frame of the wheelchair for engaging the securing rod of the securing bracket to the engaging hole;

The first fixing pin is coupled to one side of the fixing bracket and the first fixing pin is disengaged from the fixing space when the fixing bracket is coupled to the engaging part. When the fixing bracket is fully engaged, the first fixing pin is coupled to the first hole to fix the fixing bracket and the engaging part A first fixing part;

A support bracket mounted on a lower portion of the fixing space of the fixing bracket and having a support hole for fixing the second fixing portion while supporting the coupling portion;

And a second fixing part coupled to the coupling part and fixing the fixing part to the fixing bracket when the fixing bracket is coupled to the coupling part, .

The present invention can easily combine and separate the driving device from the wheelchair by the operation of the first fixing part and the second fixing part in a state where the wheelchair is mounted, thereby remarkably reducing the storage space of the wheelchair and facilitating the loading of the vehicle It is.

It is another object of the present invention to provide an apparatus and a method for operating a wheelchair in which a wheelchair is detached from a wheelchair,

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
2 is an exploded perspective view
Figs. 3 to 7 are diagrams showing the coupling state diagram
Fig. 8 is a view showing a state in which the wheelchair and the driving device are combined by the present invention
Figs. 9 to 11 are diagrams showing a state in which the driving device is separated from the wheelchair and is stationary according to the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of the present invention, and FIG. 2 is an exploded perspective view of the present invention.

The combined structure 100 of the wheelchair and the driving device according to the present invention is configured such that it is fixed to the handle shaft 22 of the driving device 20 that drives the wheelchair 10 using the battery 24, And a fixing bracket 110 for fixing the fixing bracket 110 to the frame 11 and engaging with the frame 11 of the wheelchair 10 to fix the fixing rod 113 of the fixing bracket 110 to the fixing hole 121 ' The first fixing pin 134 is detached from the fixing space 112 when the fixing bracket 110 is coupled to the engaging part 120 and the fixing bracket 110 is coupled to the fixing bracket 110, A first fixing part 130 for fixing the fixing bracket 110 and the engaging part 120 is formed by engaging the first fixing pin 134 with the first through hole 122 when the engaging part 110 is engaged, A bracket 140 attached to a lower portion of the fixing space 112 of the bracket 110 and having a support hole 141 for fixing the second fixing portion 150 while supporting the engaging portion 120 The second fixing pin 151 is elastically operated and fixed to the support hole 141 of the support table 140 when the fixing bracket 110 is coupled to the coupling portion 120. [ And a second fixing part 150 for fixing the coupling part 120 to the fixing bracket 110. Hereinafter, the fixing part 150 will be described in more detail.

The fixing bracket 110 includes a bracket main body 111 fixed to the handle shaft 22 and a fixing space 112 formed inside the bracket main body 111 to fix the engaging part 120, And a fixing rod 113 mounted on the fixing space 112 and coupled to the coupling part 120.

The engaging portion 120 includes an engaging body 121 formed with an engaging hole 121 'to engage with the fixing rod 113 of the engaging bracket 110, The first and second through holes 122 and 122 'formed in the shape of an arc around the coupling hole 121' are formed on the upper surface of the coupling body 121, And a binding member 124 fitted to both ends of the coupling body 121 and fixed to the frame 11 of the wheelchair 10.

The binding member 124 includes a rod 124a mounted on both sides of the coupling body 121 and a clamp 124b fixed to an end of the rod 124a. And an adjusting knob 124c for adjusting the knob 124 to bind to the frame 11 of the wheelchair 10.

The first and second through holes 122 and 122 'are engaged with the first through holes 122 when the wheelchair 10 is traveling and the first and second holes 122 and 122' (134) is coupled to the second through-hole (122 ').

The first fixing part 130 includes a fixing hole 131 formed at one side of the fixing bracket 110 and is fixed to the fixing hole 131 so that the first fixing pin 134 is received A first fixing body 132 having a space 132 'is formed and an elastic member 133 coupled to the inside of the first fixing body 132 is provided and the first fixing body 132 And a first fixing pin 134 which is engaged with the elastic member 133 and elastically operated by the elastic member 133 so that the fixing piece 134 'is coupled to the accommodation space 132'.

The second fixing part 150 includes a second fixing pin 151 coupled to a lower portion of the coupling hole 123 and is mounted between the second fixing pin 151 and the coupling hole 123 And a second fixing body 153 having a spring 152 and coupled to the second fixing pin 151 at an upper portion of the coupling hole 123.

And an engaging guide surface 160 formed to be inclined downward from the engaging hole 121 'so as to guide the fixing rod 113 when the fixing bracket 110 is engaged with the engaging portion 120.

A support unit 170 mounted on the lower sides of both sides of the coupling body 121 and adapted to support the drive unit 20 when the wheelchair 10 is not used when it is rotated by the rotation guide plate 171, .

Hereinafter, the combining and separating process of the present invention will be described in detail.

First, the fixing bracket 110 is inserted into the handle shaft 22 of the drive unit 20 and fixed using a fixing bolt (not shown).

The driving device 20 is provided with a handle 21 for vertically adjusting the wheelchair 10. The wheelchair 10 is oriented on a handle shaft 22 on which a wheel 23 is mounted at a lower end of the handle shaft 22 A battery 24 for supplying power is mounted on the handle shaft 22 to allow the wheelchair 10 to travel while driving the wheel 23. [

A fixing rod 113 is fixed to the bracket main body 111 of the fixing bracket 110 so that the coupling portion 120 is engaged with the fixing bracket body 111. The fixing hole 131 formed at the end of the bracket main body 111 is provided with a first fixing portion 130 are fixed.

The first fixing part 130 is fixed to the fixing hole 131 by screwing a first fixing body 132. An elastic member 133 is mounted inside the first fixing body 132, And the first fixing pin 134 is coupled to the outside of the first fixing body 132.

Meanwhile, after the end of the support table 140 is inserted into the inner lower portion of the fixing bracket 110, the end of the support table 140 is fixed with the shaft pin so that the lower portion of the coupling portion 120 can be supported.

The rod 124a of the coupling member 124 is coupled to both ends of the coupling part 120 and fixed by bolts so that the end of the bolt protrudes to the lower side of the coupling body 121. [

The clamp 124b coupled to the rod 124a of the coupling member 124 is maximally expanded and then the end of the frame 11 of the wheelchair 10 is received and the adjustment knob 124c is rotated in one direction to rotate the clamp 124b To be firmly fixed to the frame 11.

The second fixing pin 151 of the second fixing part 150 is coupled to the upper part of the coupling hole 123 formed in the coupling body 121 and the spring 152 is engaged with the second fixing pin 151, And then screwed into the engaging hole 123 to fix it.

The second fixing body 153 is screwed and fixed on the upper portion of the second fixing pin 151 coupled with the coupling hole 123.

In addition, support portions 170 are rotatably mounted on both lower ends of the coupling body 121.

The support portion 170 is coupled to the rotation guide plate 171 by a bolt to which the binding member 124 is fixed so that the support portion 170 can be rotated and the load is supported when the driving device 20 is mounted.

The support unit 170 may be configured to be rotatable at a lower portion of the coupling body 121 and spaced apart from the ground at the time of driving the wheelchair 10. When the driver unit 20 is mounted, 20).

3 to 7, in order to fix the driving unit 20 to the engaging part 120 for driving the wheelchair 10, the driving unit 20 is first driven The driving device 20 is inclined at a certain angle by pushing the wheel 23 forward while holding the handle 21 of the device 20. [

If the first fixing pin 134 of the first fixing part 130 is pulled out and the first fixing pin 134 is detached from the fixing space 112 after the driving device 20 is tilted as described above, The first fixing pin 134 moves to the outside of the fixing bracket 110 while compressing the elastic member 133 so that the fixing piece 134 'is separated from the receiving space 132' Is rotated by 90 ° so that the end of the fixing piece 134 'is caught by the end of the first fixing body 132.

The fixing bracket 110 of the fixing bracket 110 is inserted into the coupling hole 121 of the coupling portion 120 while the fixing bracket 110 fixed to the driving device 20 is moved to the lower portion of the coupling portion 120. [ ').

When the handle 21 of the drive unit 20 is gripped and lifted up to the upper part in a state where the fixing rod 113 is positioned below the coupling hole 121 ', the fixing rod 113 of the fixing bracket 110, And the fixing rod 113 is coupled to the coupling hole 121 'while being guided by the coupling guide surface 160.

When the driving unit 20 is lifted and engaged with the engaging part 120, the front wheel of the wheel chair 10 is elevated from the ground by a predetermined height.

The second fixing pin 151 coupled to the coupling body 121 in the process of coupling the fixing rod 113 to the coupling hole 121 'is in close contact with the upper surface of the support table 140 to compress the spring 152 The second fixing pin 151 is coupled to the support hole 141 while being restored by the elastic force of the spring 152. At this time,

When the fixing bracket 110 is coupled to the engaging part 120, the fixing hole 131 formed in the fixing bracket 110 and the first through hole 122 of the engaging part 120 are positioned on the same line do.

When the first fixing pin 134 of the first fixing part 130 is slightly pulled outward and then rotated 90 degrees, the first fixing pin 134 is restored by the elasticity of the elastic member 133, The end of the fixing pin 134 is fixed to the first through hole 122 of the coupling part 120 so that the coupling of the wheelchair 10 and the driving device 20 is completed as shown in FIG.

When the coupling of the wheelchair 10 and the driving device 20 is completed, the supporting part 170 is rotated upward about the rotation guide piece 171, and then the user can drive the wheelchair 10 by the power of the battery will be.

9 to 11, when the wheelchair 10 is detached from the wheelchair 10 in the state that the driving device 20 is coupled to the wheelchair 10 as described above, The first fixing pin 134 is detached from the engaging part 120 so that the fixing piece 134 'is caught by the end of the first fixing body 132 and the second fixing pin 151 So that the coupling force between the wheelchair 10 and the driving device 20 is released and the front wheel of the wheelchair 10 is brought into contact with the ground surface.

At this time, the fixing hole 131 formed in the fixing bracket 110 is positioned in the same line as the second through hole 122 'formed in the coupling portion 120, and the first fixing pin 134 are rotated by 90 degrees to engage with the second through holes 122 'of the engaging portion 120.

The clamp 124b fixing the frame 11 of the wheelchair 10 is rotated in one direction to separate the binding member 124 from the frame 11 of the wheelchair 10.

When the coupling member 124 is separated from the frame 11 as described above, the supporting unit 170 is rotated about the rotation guide plate 171 mounted on the lower portions of both sides of the coupling unit 120 to contact the ground, 20 and the wheelchair 10 can be used manually without a driving device.

Although the present invention has been described in connection with certain exemplary embodiments and drawings, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be interpreted to limit the scope of the present invention. It must be interpreted in terms of meaning and concept. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only examples of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

100: coupling structure 110: fixing bracket
111: Bracket body 112: Fixed space
113: fixing rod 120: engaging portion
121: coupling body 122: first through hole
122 ': second through hole 123: coupling hole
124: binding member 130: first fixing part
131: Fixing hole 132: First fixing body
133: elastic member 134: first fixing pin
140: Support base 141: Support ball
150: second fixing part 151: second fixing pin
152: spring 153: second fixing body
160: engaging guide surface 170:

Claims

A fixing bracket fixed to a handle shaft of a driving device for driving a wheelchair using a battery to receive and engage the engaging portion;
An engaging portion coupled to the frame of the wheelchair for engaging the securing rod of the securing bracket to the engaging hole;
The first fixing pin is coupled to one side of the fixing bracket and the first fixing pin is disengaged from the fixing space when the fixing bracket is coupled to the engaging part. When the fixing bracket is fully engaged, the first fixing pin is coupled to the first hole to fix the fixing bracket and the engaging part A first fixing part;
A support bracket mounted on a lower portion of the fixing space of the fixing bracket and having a support hole for fixing the second fixing portion while supporting the coupling portion;
And a second fixing part coupled to the coupling part and fixing the fixing part to the fixing bracket when the fixing bracket is coupled to the coupling part, A combination of a wheelchair and a driving device.

2. The stationary bracket according to claim 1,
A bracket body fixed to the handle shaft;
A fixing space formed inside the bracket body to fix the engaging part;
And a fixing rod mounted on the fixing space and coupled to the coupling portion.

2. The connector according to claim 1,
An engaging body having an engaging hole to engage with a fixing rod of the fixing bracket;
A first through hole formed on one side of the coupling body in an arc shape about a coupling hole;
A coupling hole formed on the coupling body and coupled with the second fixing part;
And a binding member mounted on both ends of the coupling body and fixed to the frame of the wheelchair.

The binding member according to claim 3,
A rod mounted on both sides of the coupling body;
A clamp fixed to an end of the rod;
And a control knob for adjusting the clamp and binding the clamp to the frame of the wheelchair.

The method of claim 3,
Wherein the first and second through holes are coupled to the first through hole when the wheelchair is running and the first fixing pin is coupled to the second hole when the wheelchair is mounted.

[2] The apparatus of claim 1,
A fixing hole formed at one side of the fixing bracket;
A first fixing body fixed to the fixing hole and having a receiving space formed therein for coupling the first fixing pin;
An elastic member coupled to the inside of the first fixing body;
And a first fixing pin coupled to the first fixing body and being elastically operated by an elastic member and coupled to the receiving space of the fixing member.

[2] The apparatus according to claim 1,
A second fixing pin coupled to a lower portion of the coupling hole;
A spring mounted between the second fixing pin and the coupling hole;
And a second fixing body coupled to the second fixing pin at an upper portion of the coupling hole.

The method according to claim 1,
Further comprising a coupling guide surface formed to be inclined downward from the coupling hole to guide the fixing rod when the fixing bracket is coupled to the coupling portion.

The method according to claim 1,
Further comprising a support portion mounted on the lower portions of both sides of the coupling body and adapted to support the driving device when the wheelchair is unused when the rotation body is rotated by the rotation guide plate to contact the ground surface. rescue.