KR100198859B1 - Propulsion device of wheelchair - Google Patents

Propulsion device of wheelchair Download PDF

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Publication number
KR100198859B1
KR100198859B1 KR1019970017422A KR19970017422A KR100198859B1 KR 100198859 B1 KR100198859 B1 KR 100198859B1 KR 1019970017422 A KR1019970017422 A KR 1019970017422A KR 19970017422 A KR19970017422 A KR 19970017422A KR 100198859 B1 KR100198859 B1 KR 100198859B1
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South Korea
Prior art keywords
handle
wheel
brake
ratchet
wheelchair
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KR1019970017422A
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Korean (ko)
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KR970032776A (en
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노강래
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노강래
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Priority to KR1019970017422A priority Critical patent/KR100198859B1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1005—Wheelchairs having brakes
    • A61G5/1035—Wheelchairs having brakes manipulated by wheelchair user
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • A61G5/024—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular operating means
    • A61G5/025—Levers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • A61G5/028—Special adaptations or provisions on hand rim, e.g. for facilitating gripping

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Handcart (AREA)

Abstract

본 발명은 휠체어(wheel chair)를 더 힘을 적게 들이고 더 안전하고 편리하게 사용할 수 있도록 하는데 목적이 있다. 휠체어는 경사진 곳을 오르거나 내려갈 때 휠체어가 뒤로 밀리거나 앞으로 가속이 붙는 문제로 인하여 경사진 길을 이용하기가 매우 힘이 든다. 위와 같은 것을 실현하고 해결하기 위하여 본 발명은 휠체어 양쪽 바퀴(1)에 각각 라쳇핸들(13)을 결합하고, 바퀴(1)를 제동할 수 있도록 브레이크장치(33)를 라쳇핸들(13)과 몸체(1)에 결합하되 브레이크손잡이(17)는 라쳇핸들(13)에, 브레이크(18)는 몸체(1)에 정착하여 휠(2)과 핸들(16)을 선택적으로 사용할 수 있도록 하였다.It is an object of the present invention to make a wheel chair use less power and safer and more convenient to use. Wheelchairs are very difficult to use inclined paths when climbing or descending slopes because of the problem of the wheelchair being pushed back or accelerating forward. In order to realize and solve the above, the present invention couples the ratchet handle 13 to each wheel 1 of the wheelchair, and the brake device 33 includes the ratchet handle 13 and the body to brake the wheel 1. (1), but the brake knob 17 is fixed to the ratchet handle 13, the brake 18 is fixed to the body (1) so that the wheel 2 and the handle 16 can be selectively used.

Description

휠체어의 추진 장치Propulsion device of wheelchair

제1도는 휠체어(wheel chair)의 측면도.1 is a side view of a wheel chair.

제2도는 본 발명을 적용한 휠체어의 측면도.2 is a side view of a wheelchair to which the present invention is applied.

제3도는 본 발명의 요부 사시도.3 is a perspective view of main parts of the present invention.

제4도는 라쳇핸들의 내부 구조 단면도.4 is a cross-sectional view of the internal structure of the ratchet handle.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

A : 걸림쇠와 잇발이 맞물리도록 전환레바를 전환하는 방향A: Direction to switch the lever so that the latch and the tooth are engaged

B : 걸림쇠와 잇발이 분리되도록 전환레바를 전환하는 방향B: Direction to switch the lever so that the latch and the tooth can be separated

1 : 바퀴 2 : 휠(손으로 바퀴를 돌리는 부분)1: wheel 2: wheel (the part which turns the wheel by hand)

3 : 바퀴축 4 : 바퀴굴림대3: wheel axle 4: wheel wheel

5 : 몸체 6 : 고정브레이크5: body 6: fixed brake

7 : 앞바퀴 8 : 손잡이7: front wheel 8: handle

9 : 등받이 10 : 방석9: backrest 10: cushion

11 : 팔걸이 12 : 발받침대11: armrest 12: footrest

13 : 라쳇핸들 14 : 전환레바13: ratchet handle 14: switch lever

15 : 레바 16 : 핸들15: Leviathan 16: Handle

17 : 브레이크 손잡이 18 : 브레이크17: brake handle 18: brake

19 : 브레이크케이블 20 : 핸들고정대19: brake cable 20: handlebar

21 : 핸들정지끈 22 : 기어잇발21: handle stopper 22: gear teeth

23 : 걸림쇠 24 : 걸림쇠축23: brace 24: brace shaft

25 : 스프링 26 : 설림쇠돌출부25: spring 26: ridge protrusion

27 : 전환레바돌출부 28 : 기어잇발뭉치27: switching lever protrusion 28: gear tooth bundle

29 : 연결구멍 30 : 구멍29: connection hole 30: hole

31 : 전환레바축 32 : 라쳇몸통31: switch lever shaft 32: ratchet body

33 : 브레이크장치(제동장치)33: brake device (braking device)

34 : 점선부분(전환레바가 B방으로 전환되었을때의 전환레바 및 걸림쇠의 위치)34: dotted line (position of the switching lever and the latch when the switching lever is switched to the B-room)

35 : 크립(라쳇핸들이 움직이지 못하게 가볍게 잡고 있을 수 있는 장치)35: creep (device that can hold the ratchet handle lightly)

[이용분야][Application Field]

본 발명은 수동 휠체어(wheel chair)의 추진 장치에 관한 것이다.The present invention relates to a propulsion device for a manual wheelchair.

[종래의 문제점][Conventional Problems]

수동 휠체어(wheel chair)는 손으로 바퀴에 달린 휠을 회전 시켜 앞으로 또는 뒤로 이동한다.A manual wheel chair moves forward or backward by rotating the wheel on the wheel by hand.

따라서 휠을 손으로 잡고 회전시키는 것이 쉽지는 않다. 특히 경사진 곳을 오르거나 내려갈 때, 오르막길을 오를 때는 휠체어가 뒤로(아래로) 밀리는 현상으로 인하여 손으로 휠을 회전시킨 후 다시 회전시키기 위하여 손을 뒤로(위로) 이동하는 순간 바퀴가 거꾸로 회전하게 되므로 경사진 곳을 오르기란 매우 힘이 들며, 내리막길은 휠체어가 가속이 붙어 매우 위험하므로 바퀴에 적당한 제동을 가할 필요가 있다.Therefore, holding the wheel by hand is not easy. In particular, when climbing or descending slopes, the wheelchair is pushed back (down) when climbing uphill, and the wheel is rotated upside down the moment the hand is moved backwards (up) to rotate the wheel and then back again. Therefore, it is very hard to climb up a slope, and downhills require a proper brake on the wheels because the wheelchair is accelerated and very dangerous.

[본 발명이 해결하고자 하는 기술적 과제][Technical problem to be solved by the present invention]

본 발명은 이상의 문제점을 해결하고자 발명한 것으로 먼저 원리를 설명하면 다음과 같다.The present invention has been invented to solve the above problems. First, the principle will be described.

휠체어의 휠 대신 핸들을 이용하여 바퀴를 회전시키고, 핸들에 부착된 브레이크 손잡이를 핸들과 같이 움켜잡음(압력을 가함)으로서 바퀴가 제동되게 하여 핸들로 바퀴를 회전시키면서 동시에 브레이크를 잡을 수 있도록 하였다.The wheels were rotated using the handle instead of the wheel of the wheelchair, and the brake handle attached to the handle was gripped (pressurized) like the handle so that the wheels were braked so that the brakes could be simultaneously rotated with the handle.

[본 발명의 구성][Configuration of the present invention]

도면에 의하여 상세한 설명을 하면 다음과 같다.Detailed description with reference to the drawings as follows.

휠체어(wheel chair)의 몸체(5) 좌우측에 각각 고정된 바퀴축(3)에 휠(2)이 부착된 바퀴(1)가 바퀴굴림대(4)로 회전 가능하게 결합되어 있고, 앞바퀴(7), 손잡이(8), 등받이(9), 방석(10), 팔걸이(11), 발받침대(12), 그리고 고정브레이크(6)가 몸체(5)에 결합 또는 형성된 상태의 휠체어에 라쳇핸들(13)을 몸체(5)의 좌우측에 각각 결합된 바퀴굴림대(4)에 회전 가능하게 결합하고, 바퀴(1)를 제동할 수 있도록 좌우측 라쳇핸들(13)과 몸체(5)에 브레이크장치(33)를 결합 형성한다. 좌우측 바퀴축(3)에 회전가능하게 결합된 바퀴(1)의 중심부인 바퀴굴림대(4)와 라쳇핸들(13)의 기어잇발뭉치(28)를 결합 고정시키고, 라쳇핸들(13)의 일부분인 라쳇몸통(32)에 연결된 레바(15) 끝단에는 핸들(16)과 브레이크손잡이(17)를 결합하고, 브레이크(18)는 바퀴(1)를 제동시킬 수 있도록 몸체(5)에 고정시키고, 브레이크(18)를 작동시키는 브레이크손잡이(17)와는 유연성이 있는 브레이크케이블(19)로 연결하고, 라쳇핸들(13)이 일정 각도를 벗어나지 못하도록 일정한 한도 이상 하강하면 라쳇핸들(13)이 맞닿을 하강 방지턱인 핸들고정대(20)를 몸체(5)에 돌출 형성시키고, 이 핸들고정대(20) 라쳇핸들(13)을 가볍게 고정시킬 수 있는 크립(35)을 형성 부착하고 그리고 끝단에는 일정한 길이를 가진 핸들정지끈(21)의 일측 끝을 연결하고 또 다른 일측 끝은 라쳇핸들(13)과 연결하여 라쳇핸들(13)이 뒤로 회전할 때 일정각도 이상은 회전하지 못하게 하고, 라쳇핸들(13)의 라쳇몸통(32) 내즉에는 기어잇발뭉치(28)를 회전 가능하게 결합하고, 잇발(22)과 걸림 될 수 있도록 걸림쇠(23)를 라쳇몸통(32)에 결합 고정된 걸림쇠축(24)에 스프링(25)을 게재 시켜 회전 가능하게 결합하고, 전환레바(14)는 전환레바돌출부(27)와 걸림쇠돌출부(26)가 맞닿을 수 있도록 일정한 거리를 두고 라쳇몸통(32)에 결합 고정된 전환레바축(31)에 회전 가능하게 결합한 구조로 되어있다Wheels 1 with wheels 2 attached to the wheel shafts 3 fixed to the left and right sides of the body 5 of the wheel chair are rotatably coupled to the wheel bar 4, and the front wheels 7 ), Handle (8), backrest (9), cushion (10), armrest (11), footrest (12), and fixed brake (6) is a ratchet handle ( 13 is rotatably coupled to the wheel rollers 4 coupled to the left and right sides of the body 5, respectively, and the brake device on the left and right ratchet handle 13 and the body 5 to brake the wheels 1 33) to form a bond. Coupling and fixing the gear wheel (28) of the ratchet wheel 4 and the ratchet handle 13, which is the center of the wheel (1) rotatably coupled to the left and right wheel shaft (3), a part of the ratchet handle (13) The handle 16 and the brake handle 17 are coupled to the end of the lever 15 connected to the ratchet body 32, and the brake 18 is fixed to the body 5 to brake the wheel 1. The brake handle 17 which operates the brake 18 is connected with a flexible brake cable 19, and when the ratchet handle 13 descends more than a certain limit so that the ratchet handle 13 does not deviate from a certain angle, the ratchet handle 13 descends to abut. The handle jaw (20), which is a prevention jaw, is formed to protrude from the body (5), and the handle fixing stand (20) forms and attaches a creep (35) which can lightly fix the ratchet handle (13) and the handle having a fixed length at the end Connect one end of the stop strap (21) and the other end of the ratchet handle (13) When the ratchet handle 13 is rotated backwards, the ratchet handle 13 can not be rotated more than a certain angle, and the ratchet body 32 of the ratchet handle 13 is rotatably coupled to the gear tooth bundle 28 within the ratchet body 13, The spring (25) is placed on the clamping shaft (24) fixed to the ratchet body (32) so that the latch (23) can be engaged with the ratchet body (32) to be rotatably coupled, and the switching lever (14) is a switching lever protrusion. (27) and the locking projection (26) is a structure that is rotatably coupled to the switching lever shaft 31 is fixed to the ratchet body (32) at a certain distance to abut.

[본 발명의 작용][Operation of the present invention]

이와 같은 구조로 되어 있어서 전환레바(14)를 A방향으로 전환시키고 핸들(16)을 앞으로 밀면(회전시키면) 걸림쇠(23)와 잇발(22)이 맞물려 기어잇발뭉치(28)가 같이 회전하게 되고, 기어잇발뭉치(28)에 형성된 연결구멍(29)에 고정결합된 바퀴굴림대(4)도 회전하게 되며, 따라서 바퀴굴림대(4)에 고정 결합된 바퀴(1)도 회전하게 된다.In this structure, when the switching lever 14 is switched in the A direction and the handle 16 is pushed forward (rotated), the latch 23 and the teeth 22 are engaged to rotate the gear tooth bundle 28 together. , The wheel roller 4 fixed to the connection hole 29 formed in the gear tooth bundle 28 also rotates, and thus the wheel 1 fixed to the wheel roller 4 rotates.

걸림쇠(23)는 스프링(25)의 외향 탄력으로 인하여 항상 잇발(22)과 맞물리게 된다. 여기서 만약 라쳇핸들(13)을 역회전시키면 일정한 각도를 가지고 등간격으로 배열된 잇발(22)과 걸림쇠는 서로 분리되는 방향으로 힘이 작용하여 서로 분리 되므로 라쳇핸들(13)은 공회전하게 된다.The detent 23 is always engaged with the tooth 22 due to the outward elasticity of the spring 25. Here, if the ratchet handle 13 is rotated in reverse, the ratchet handles 22 and the clasps arranged at equal intervals at regular intervals are separated from each other by a force acting in a direction in which they are separated from each other.

전환레바(14)는 걸림쇠돌출부(26)와 전환레바돌출부(27)가 서로 맞닿을 수 있도록 라쳇몸통(32)에 고정된 전환레바축(31)에 좌우 회전 가능하게 결합되어 있으므로 B방향으로 전환레바(14)를 전환시키면 점선부분(34)에서 표시한 바와 같이 전환레바돌출부(27)가 걸림쇠돌출부(26)를 밀어내어 걸림쇠(23)와 잇발(22)은 완전히 분리되므로 기어잇발뭉치(28)는 공회전을 할 수 있다.Since the switching lever 14 is rotatably coupled to the switching lever shaft 31 fixed to the ratchet body 32 so that the latching protrusion 26 and the switching lever protrusion 27 contact each other, the switching lever 14 is switched to the B direction. When the lever 14 is switched, the switching lever protrusion 27 pushes the latch protrusion 26 as shown by the dotted line 34 so that the latch 23 and the tooth 22 are completely separated, so that the gear teeth bundle 28 ) Can idle.

레바(15)에 결합된 브레이크손잡이(17)는 브레이크손잡이(17)로 바퀴(1)를 제동할 수 있도록 몸체(5)에 고정시킨 브레이크(18)와 유연성이 있는 브레이크케이블(19)로 연결하였으므로 핸들(16)을 앞으로 회전시킬 때는 브레이크손잡이(17)를 놓고 회전시키고, 뒤로 핸들(16)을 이동(역회전)시킬 때는 핸들(16)과 브레이크손잡이(17)를 일정한 압력을 가하여 함께 움켜잡고 뒤로 이동(역회전)시키면 바퀴(1)는 브레이크(18)에 제동이 걸려 고정된 상태(회전 못하는 상태)가 되나 핸들(16)만은 역회전이 된다.The brake handle 17 coupled to the lever 15 is connected to the brake 18 fixed to the body 5 so that the brake 1 can be braked by the brake handle 17 and the flexible brake cable 19. Therefore, when the handle 16 is rotated forward, the brake handle 17 is released and rotated, and when the handle 16 is moved back (reversely rotated), the handle 16 and the brake handle 17 are applied at a constant pressure to grab together. Holding and moving backwards (reverse rotation), the wheel 1 is braked to the brake 18 becomes a fixed state (not rotating), but only the handle 16 is reverse rotation.

핸들(16)은 항상 일정각도 내에 있어야 하므로 핸들(16)을 일정각도 내에 두기 위하여 핸들(16)은 일정한 한도 이하 하강 때는 몸체(5)에 돌출된 핸들고정대(20)에 맞닿아 더 이상 하강 할 수 없도록 되어있으며 또 핸들(16)이 최대로 상승하여 최대 상승각도를 벗어나지 못하도록 레바(15)와 핸들고정대(20)를 핸들정지끈(21)으로 연결하였으므로 레바(16)를 안전한 각도 내에서 자유로이 작동할 수 있다.Since the handle 16 should always be within a certain angle, the handle 16 should be in contact with the handle holder 20 protruding from the body 5 when the handle 16 falls below a certain limit so that the handle 16 may be lowered. In addition, the lever 16 is connected with the handle stopper 21 so that the handle 16 can be raised to the maximum and deviate from the maximum lift angle, so that the lever 16 is freely within a safe angle. Can work.

라쳇핸들(13)을 사용하지 않을 때는 핸들고정대(20)에 부착된 크립(25)에 가볍게 고정시켜두면 된다.When the ratchet handle 13 is not used, it may be lightly fixed to the creep 25 attached to the handle holder 20.

[본 발명의 효과][Effect of this invention]

따라서 본 발명은 휠체어에 휠(2)과 본 발명을 동시에 장착하여 서로의 장점을 최대한 활용하므로서 아주 짧은 거리 이동이나 뒤로 이동할 때는 휠(2)을 사용하고 비교적 장거리 및 경사진 곳을 이동할 때는 본 발명을 사용하므로서 휠체어의 사용이 더 편리하며 특히 경사진 곳을 오르거나 내려갈 때는 핸들(16)과 브레이크손잡이(13)를 동시에 이용하면 내리막길에서는 바퀴(1)에 적당히 제동을 걸 수 있으며 오르막길에서는 휠체어가 뒤로 밀리는 것을 방지 할 수 있어서 더 안전하고 편리하게 휠체어를 사용할 수 있다.Therefore, the present invention is equipped with the wheel (2) and the present invention at the same time in the wheelchair while maximizing each other's advantages while using the wheel (2) when moving very short distances or moving backwards and the present invention when moving relatively long distances and inclined places It is more convenient to use the wheelchair, especially when going up or down a slope, by using the handle (16) and the brake handle (13) at the same time, you can brake properly on the wheel (1) on the downhill and the wheelchair on the uphill This prevents the back from being pushed back, making the wheelchair safer and more convenient.

Claims (3)

휠체어(wheel chair)의 몸체(5) 좌우측에 고정된 바퀴축(3)에 휠(2)이 부착된 바퀴(1)가 바퀴굴림대(4)로 회전가능하게 결합되어 있는 휠체어에 있어서, 라쳇핸들(13)을 각각 좌우측 바퀴굴림대(4)에 라쳇핸들(13)이 회전 가능하게 결합하고, 바퀴(1)를 제동할 수 있도록 각각 좌우측 라쳇핸들(13)과 몸체(5)에 브레이크장치(33)를 결합 형성한 휠체어의 추진 장치.In a wheelchair in which a wheel (1) with a wheel (2) attached to a wheel shaft (3) fixed to left and right sides of a body (5) of a wheel chair is rotatably coupled to a wheel spool (4), The ratchet handle 13 is rotatably coupled to the left and right wheel rollers 4, respectively, and the brake device is mounted to the left and right ratchet handles 13 and the body 5 so as to brake the wheels 1, respectively. Propulsion device of the wheelchair formed by combining 33. 제1항에서 좌우측 바퀴축(3)에 회전가능하게 결합된 바퀴(1)의 중심부인 바퀴굴림대(4)와 라쳇핸들(13)의 기어잇발뭉치(28)를 결합 고정시키고, 라쳇핸들(13)의 일부분인 라쳇몸통(32)에 연결된 레바(15) 끝단에는 핸들(16)과 브레이크손잡이(17)를 결합하고, 브레이크(18)는 바퀴(1)를 제동시킬 수 있도록 몸체(5)에 고정시키고, 브레이크(18)를 작동시키는 브레이크손잡이(17)와는 유연성이 있는 브레이크케이블(19)로 연결하고, 몸체(5)에는 핸들고정대(20)를 돌출 형성하고, 핸들고정대(20)에는 크립(35)을 형성하고, 라쳇핸들(13)과 핸들고정대(20)를 핸들정지끈(21)으로 연결한 휠체어의 추진 장치.In claim 1, the wheel roller 4, which is the center of the wheel 1 rotatably coupled to the left and right wheel shafts 3, and the gear tooth bundle 28 of the ratchet handle 13 are fixed to each other, and the ratchet handle ( The handle 16 and the brake handle 17 are coupled to the end of the lever 15 connected to the ratchet body 32 which is a part of the body 13, and the brake 18 has a body 5 to brake the wheel 1. Fixed to the brake handle 17, which operates the brake 18, and is connected to the flexible brake cable 19, and the handle 5 is protruded to the body 5, and the handle holder 20 is Formation of the creep (35), the propulsion device of the wheelchair connected the ratchet handle (13) and the handlebar (20) by the handle stopper (21). 제1항에서 라쳇핸들(13)의 라쳇몸통(32) 내즉에는 기어잇발뭉치(28)를 회전 가능하게 결합하고, 잇발(22)과 걸림 될 수 있도록 걸림쇠(23)를 라쳇몸통(32)에 결합 고정된 걸림쇠축(24)에 스프링(25)을 게재 시켜 회전 가능하게 결합하고, 전환레바(14)는 전환레바돌출부(27)와 걸림쇠돌출부(26)가 맞닿을 수 있도록 일정한 거리를 두고 라쳇몸통(32)에 결합 고정된 전환레바축(31)에 회전 가능하게 결합한 구조의 휠체어의 추진 장치.In claim 1, the ratchet body 32 of the ratchet handle 13 is rotatably coupled to the gear tooth bundle 28, and the latch 23 is attached to the ratchet body 32 so as to be engaged with the teeth 22. The spring 25 is placed on the fixed clamping shaft 24 to be rotatably coupled, and the switching lever 14 is latched at a predetermined distance so that the switching lever protrusion 27 and the latching protrusion 26 contact each other. Propulsion device of the wheelchair of the structure rotatably coupled to the conversion lever shaft 31 fixed to the body (32).
KR1019970017422A 1997-04-29 1997-04-29 Propulsion device of wheelchair KR100198859B1 (en)

Priority Applications (1)

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KR1019970017422A KR100198859B1 (en) 1997-04-29 1997-04-29 Propulsion device of wheelchair

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KR100198859B1 true KR100198859B1 (en) 1999-06-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101261318B1 (en) 2012-11-28 2013-05-10 최재한 Wheel chair
KR101852149B1 (en) * 2016-08-24 2018-04-25 청주대학교 산학협력단 Wheelchair for cruthes users

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101261318B1 (en) 2012-11-28 2013-05-10 최재한 Wheel chair
KR101852149B1 (en) * 2016-08-24 2018-04-25 청주대학교 산학협력단 Wheelchair for cruthes users

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KR970032776A (en) 1997-07-22

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