KR20210069512A - Auxiliary wheel of wheel chair having centrifugal deceleration system - Google Patents

Auxiliary wheel of wheel chair having centrifugal deceleration system Download PDF

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Publication number
KR20210069512A
KR20210069512A KR1020190159423A KR20190159423A KR20210069512A KR 20210069512 A KR20210069512 A KR 20210069512A KR 1020190159423 A KR1020190159423 A KR 1020190159423A KR 20190159423 A KR20190159423 A KR 20190159423A KR 20210069512 A KR20210069512 A KR 20210069512A
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South Korea
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wheel
wheelchair
wheels
screw
spokes
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KR1020190159423A
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Korean (ko)
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KR102331996B1 (en
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조경현
유태진
이건주
장강재
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조경현
이건주
장강재
유태진
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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
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • A61G5/021—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms
    • A61G5/022—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms acting on wheels, e.g. on tires or hand rims
    • 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
    • A61G5/1013—Wheelchairs having brakes engaging the wheel
    • 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
    • A61G2200/00—Information related to the kind of patient or his position
    • A61G2200/30—Specific positions of the patient
    • A61G2200/34—Specific positions of the patient sitting
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort

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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

The present invention relates to an auxiliary wheel for a wheelchair comprising a rim (110) of a wheel, spokes (121) of the wheel, a steel bead (131), a bearing cover (200), and a nut (400) coupled to a screw (400) with a rubber pad (402) on the screw head and a frame (300) connected to a wheelchair and, more specifically, to an auxiliary wheel for a wheelchair having a centrifugal deceleration device, which prevents severe injuries caused by rapid arrival caused by an unrecognized inclination on a slope due to carelessness of a patient using a wheelchair or an assisting person. Since the hole of the steel bead (131) is larger than the circumference of the spokes (121) of the wheel, the steel bead can move between the spokes (121) of the wheel mounted on the rim (110) of the wheel and the bearing cover (200). Therefore, when the wheel rotates at a high speed, the steel bead (131) moves toward the rim (110) of the wheel by centrifugal force, and the moved steel bead (131) causes friction with the rubber pad (402) portion coupled to the screw head of the screw (400) mounted on the frame of the wheelchair to decelerate the wheelchair. Accordingly, severe injuries of a wheelchair user can be prevented by limiting speed increases by continuous acceleration on a slope which is not recognized due to carelessness to a prescribed level.

Description

원심 감속장치가 구비된 휠체어용 보조바퀴{Auxiliary wheel of wheel chair having centrifugal deceleration system}Auxiliary wheel of wheel chair having centrifugal deceleration system

본 발명은 휠체어의 안전장치에 관한 것으로써, 일정 수준의 빠른 속도가 되면 유기적으로 결합된 구조에 의해 발생한 마찰 감속을 통해 속도 상승을 억제하여 큰 사고를 방지하기 위한 원심 감속장치가 구비된 휠체어용 보조바퀴에 관한 것이다.The present invention relates to a safety device for a wheelchair, and for a wheelchair equipped with a centrifugal reduction device for preventing a major accident by suppressing a speed increase through frictional deceleration generated by an organically coupled structure when a high speed of a certain level is reached It's about the auxiliary wheels.

일반적인 수동 휠체어의 경우 큰 휠체어의 속도를 환자가 스스로 제어하기 어렵기 때문에 보조자가 동행하게 된다.In the case of a general manual wheelchair, an assistant accompanies the patient because it is difficult for the patient to control the speed of a large wheelchair.

병원에서는 수액을 맞으며 휠체어를 이용하는 환자는 휠체어를 스스로 제어하면 팔에 압력이 가해져 피가 역류하기 때문에 보조자 동행이 필수적이다.In hospitals, patients who use a wheelchair while receiving infusions are required to be accompanied by an assistant because if they control the wheelchair themselves, pressure is applied to their arms and blood flows back.

또한, 휠체어 이용자들 중 스스로 밀고 다니는 경우는 적다. 한 쪽 다리를 다친 경우는 목발을 짚고 다니고, 팔을 다친 환자가 다리에 근력이 부족할 경우에 사용한다 하여도 보조자가 있기 마련이다.Also, it is rare for wheelchair users to push themselves. If one leg is injured, use crutches, and even if a patient with an injured arm lacks muscle strength in the leg, there is always an assistant.

대학병원에서의 휠체어 이용자들 중 부주의로 인한 사고율이 가장 높은 점을 고려해 보면, 속도 제어에서의 불편함을 생각해 볼 수 있다.Considering that the accident rate due to carelessness is the highest among wheelchair users at university hospitals, the inconvenience of speed control can be considered.

따라서 완전 수동의 휠체어에서는 직접 감속을 해주어야 하는 부분, 전동휠체어는 가격 측면에서 현실적으로 전체 보급하기 힘들다는 점이 문제가 있어 왔다.Therefore, there has been a problem in that a fully manual wheelchair requires direct deceleration, and that it is difficult to supply the electric wheelchair in reality in terms of price.

본 발명은 휠체어 이용 환자들이 사용하는 직접 제동이 필요한 현재 휠체어의 시스템에서 발생하는 부주의로 인한 사고들을 토대로, 보조자나 휠체어 이용자의 부주의로 인해 경사가 존재하는지 몰랐던 곳에서의 지속적인 가속으로인한 속도상승이 발생하면 그 속도를 나사머리에 고무패드가 달린 나사를 조절하여 낮은수준으로 감속시켜 큰 부상을 예방하고자하는 데 있다.The present invention is based on accidents caused by negligence occurring in the current wheelchair system that requires direct braking used by patients using wheelchairs, and the speed increase due to continuous acceleration in places where the incline was not known due to the carelessness of the assistant or wheelchair user. When it occurs, the speed is reduced to a low level by controlling a screw with a rubber pad on the screw head to prevent serious injury.

상기 목적을 달성하기 위한 본 발명에 의한 원심 감속장치가 구비된 휠체어용 감속장치는 알루미늄으로 이루어진 바퀴의 테(110), 베어링 커버(200), 휠체어와 연결되는 틀(300), 그리고 강철로 이루어진 구슬(131)과 바퀴의 살(121)로 구성되며,A reduction device for a wheelchair equipped with a centrifugal reduction device according to the present invention for achieving the above object is a wheel frame 110 made of aluminum, a bearing cover 200, a frame 300 connected to the wheelchair, and steel Consists of beads (131) and spokes of wheels (121),

강철 구슬(131)의 구멍은 바퀴의 살(121)다 크므로 바퀴의 살(121)이 이동 할 수 있는 구조이며,Since the hole of the steel bead 131 is larger than the spoke 121 of the wheel, it is a structure in which the spoke 121 of the wheel can move,

베어링 커버(200)와 바퀴의 테(110)사이에 바퀴의 살(121)이 연결되어 있으므로 강철 구슬(131)은 바퀴의 테(110)와 베어링 커버(200) 사이에서 빠른회전으로 인해 원심력이 크게 작용하면 바퀴의 테(110)쪽으로 상승하고, 원심력이 작용하지 않으면 중력에 의해 아래로 이동한다.Since the spokes 121 of the wheels are connected between the bearing cover 200 and the rims 110 of the wheels, the steel beads 131 have centrifugal force due to the fast rotation between the rims 110 of the wheels and the bearing covers 200. If it acts large, it rises toward the rim 110 of the wheel, and if centrifugal force does not act, it moves downward by gravity.

휠체어와 연결되는 틀(300)에 나사머리에 고무패드(402)가 부착되어있는 나사(400)와 너트(401)를 결합하여 고정시키고,The screw 400 and the nut 401 having a rubber pad 402 attached to the screw head are combined and fixed in the frame 300 connected to the wheelchair,

원심력에 의해 이동 하는 강철 구슬(131)이 높은 속도에서 강한 원심력을 받아 바퀴의 테(110) 부분으로 이동하게 될 경우 상기 고무패드(402)가 부착되어있는 나사(400)의 높이까지 상승하게 되어 결과적으로 마찰을 발생시켜 감속하는 것이다.When the steel beads 131 moving by centrifugal force receive a strong centrifugal force at high speed and move to the rim 110 of the wheel, it rises to the height of the screw 400 to which the rubber pad 402 is attached. As a result, friction is generated and the vehicle slows down.

본 발명에 의한 원심 감속장치가 구비된 휠체어용 보조바퀴에 의하면, 보조자나 휠체어를 이용하는 환자가 부주의하여 경사진 곳에서 가속도에 의해 속도가 일정 수준 이상으로 도달하는 것을 방지하여 큰 부상을 예방할 수 있다.According to the auxiliary wheel for a wheelchair equipped with a centrifugal reduction device according to the present invention, it is possible to prevent serious injuries by preventing the speed from reaching a certain level or more due to acceleration at an inclined place inadvertently by an assistant or a patient using a wheelchair. .

또한, 추가적으로 너트(401)를 통해 휠체어와 연결되는 틀(300)에 결합된 나사(400)의 거리를 조절하여 최종적으로 강철 구슬(131)이 고무패드(402)와 발생시키는 마찰의 정도로 감속을 조정할 수 있어 최대속도의 통제가 가능할 것이므로, 위급상황 시에는 빠르게 이동하는데도 지장이 없을 것이다.In addition, the distance of the screw 400 coupled to the frame 300 connected to the wheelchair through the nut 401 is additionally adjusted to finally reduce the deceleration to the degree of friction generated by the steel ball 131 with the rubber pad 402 Since it can be adjusted, it will be possible to control the maximum speed, so there will be no hindrance to moving quickly in an emergency.

도 1은 본 발명의 실시예에 의한 원심 감속장치가 구비된 휠체어용 보조바퀴를 나타내는 사시도이다.
도 2는 본 발명의 실시예에 의한 원심 감속장치가 구비된 휠체어용 보조바퀴를 나타내는 3차원 사시도이다.
도 3은 나사머리에 고무패드가 결합된 나사를 나타내는 사시도이다.
도 4는 바퀴의 테와 베어링 커버를 나타내는 사시도이다.
도 5는 너트를 나타내는 사시도이다.
도 6은 휠체어와 연결되는 틀과 나사머리에 고무패드가 결합된 나사의 너트에 의한 부착된 모습을 보여주는 사시도이다.
도 7은 바퀴의 살의 치수를 나타낸 도면이다.
도 8은 바퀴의 테의 치수를 나타낸 도면이다.
도 9는 베어링 커버의 치수를 나타낸 도면이다.1 is a perspective view showing an auxiliary wheel for a wheelchair equipped with a centrifugal reduction device according to an embodiment of the present invention.
2 is a three-dimensional perspective view showing an auxiliary wheel for a wheelchair equipped with a centrifugal reduction device according to an embodiment of the present invention.
3 is a perspective view illustrating a screw in which a rubber pad is coupled to a screw head.
4 is a perspective view showing the rim and bearing cover of the wheel.
5 is a perspective view showing a nut;
6 is a perspective view showing the attachment by the nut of the rubber pad coupled to the screw head and the frame connected to the wheelchair.
7 is a view showing the dimensions of the spokes of the wheel.
8 is a view showing the dimensions of the rim of the wheel.
9 is a view showing the dimensions of the bearing cover.

이하, 본 발명의 바람직한 실시예에 따른 원심 감속장치가 구비된 휠체어용 보조바퀴에 대하여 살펴본다.Hereinafter, an auxiliary wheel for a wheelchair equipped with a centrifugal reduction device according to a preferred embodiment of the present invention will be described.

도 1은 본 발명의 일 실시예에 따른 원심 감속장치가 구비된 휠체어용 보조바퀴의 도면이고, 도 2는 이를 입체적으로 보여주기 위한 3차원 사시도이다. 도 4는 베어링 커버(200)과 바퀴의 테(110)만의 사시도이고, 도 3은 나사(400)만의 사시도이며, 도 5는 너트(401)만의 사시도이고, 도 6은 휠체어와 연결되는 틀(300)과 나사 및 너트와 나사머리에 결합된 고무패드(402)와의 결합상태를 나타내는 사시도이다.1 is a view of an auxiliary wheel for a wheelchair equipped with a centrifugal reduction device according to an embodiment of the present invention, and FIG. 2 is a three-dimensional perspective view for showing it three-dimensionally. 4 is a perspective view of only the bearing cover 200 and the rim 110 of the wheel, FIG. 3 is a perspective view of only the screw 400, FIG. 5 is a perspective view of only the nut 401, and FIG. 6 is a frame ( 300) is a perspective view showing the coupling state of the screw and the nut and the rubber pad 402 coupled to the screw head.

도 1 내지 2에 도시된 바와 같이, 결합된 전체적인 모습에서 바퀴의 살(121)에서 강철 구슬(131)이 자유롭게 이동할 수 있음을 알 수 있다.1 and 2, it can be seen that the steel beads 131 can move freely in the spokes 121 of the wheels in the combined overall view.

강철 구슬(131)이 바퀴의 살(121)에서 자유롭게 이동할 수 있음은, 강철 구슬(131)의 구멍이 바퀴의 살(121)의 둘레보다 크기 때문이다.The reason that the steel beads 131 can move freely in the spokes 121 of the wheels is because the holes of the steel beads 131 are larger than the circumference of the spokes 121 of the wheels.

강철 구슬(131)은 도 1 내지 2에 도시된 바와 같이, 베어링 커버(200)과 바퀴의 테(110)의 사이에서만 자유롭게 이동하게 된다.The steel beads 131 are free to move only between the bearing cover 200 and the rim 110 of the wheel, as shown in FIGS. 1 and 2 .

도 4에서 바퀴의 테(110)와 베어링 커버(200)만을 나타내었는데, 이는 도면에 도시된 상태에서 바퀴의 살(131)을 바퀴의 테(110)와 베어링 커버(200)사이에 각각 강철 구슬(131)을 장착한 상태에서 결합하여 전체적인 보조바퀴의 형상을 이룬다.In Fig. 4, only the wheel rim 110 and bearing cover 200 are shown, which is a steel ball between the wheel rim 110 and the bearing cover 200 with the wheel spoke 131 in the state shown in the figure, respectively. (131) is combined in the mounted state to form the overall auxiliary wheel shape.

도 4에서 바퀴의 테(110)와 베어링 커버(200)사이의 바퀴의 살(131)의 결합은 바퀴의 테(110)에 바퀴의 살(131)이 결합할 수 있도록 제공된 공간과, 마찬가지로 베어링 커버(200)에 주어진 공간을 결합하여, 덧붙여 바퀴의 살(131) 사이에는 당연히 강철 구슬(121)을 결합한 상태로, 상기 보조바퀴의 형상을 구성한다.In FIG. 4, the coupling of the spokes 131 between the wheel rims 110 and the bearing cover 200 is the space provided so that the wheel ribs 131 can be coupled to the wheel rims 110, similarly to the bearings. By combining the space given to the cover 200, in addition, between the spokes 131 of the wheels, of course, the steel beads 121 are combined to form the shape of the auxiliary wheel.

상기 바퀴의 테(110)에 바퀴의 살(131)이 결합할 수 있도록 제공된 공간이란 도 8에서 나타내는 바퀴의 테(110)에서의 도 7을 토대로 한 바퀴의 살(121)이 결합되는 공간을 의미하며, 상기 베어링 커버(200)에 주어진 공간이란 도 9에서 나타내는 베어링 커버(200)에서의 도 7을 토대로 한 바퀴의 살(121)이 결합되는 공간을 의미한다.The space provided so that the spokes 131 of the wheels can be coupled to the rims 110 of the wheels is a space where the spokes 121 of the wheels are coupled based on FIG. 7 in the rims 110 of the wheels shown in FIG. Meaning, the space given to the bearing cover 200 means a space in which the spokes 121 of one wheel are coupled based on FIG. 7 in the bearing cover 200 shown in FIG. 9 .

도 3에서의 나사(400)의 전체적인 형상과, 도 5에서의 너트(401)를 이용하여, 도 6에서와 같이 휠체어와 연결되는 틀(300)에 나사(400)의 안쪽에 너트(401), 그리고 바깥쪽에도 너트(401)를 결합하여 마찰부를 구성한다.Using the overall shape of the screw 400 in FIG. 3 and the nut 401 in FIG. 5 , the nut 401 on the inside of the screw 400 in the frame 300 connected to the wheelchair as in FIG. 6 . , and the nut 401 is coupled to the outside to constitute a friction part.

도 1 내지 2에 도시된 바와 같이, 상기 마찰부와 상기 보조바퀴의 전체적인 형상을 상기 보조바퀴의 중심축을 통해 결합시킨다.1 and 2, the friction part and the overall shape of the auxiliary wheel are coupled through the central axis of the auxiliary wheel.

강철 구슬(131)이 바퀴의 살(121)을 자유롭게 이동할 수 있다고 상기 서술한 바를 토대로, 빠른 속도에서 원심력이 강해지면 강철 구슬(131)이 바퀴의 테(110)로 접근하게 되고, 이는 마찰부의 나사머리에 결합된 고무패드(402)와 마찰을 일으켜 감속을 발생시킨다.Based on the above description that the steel beads 131 can freely move the spokes 121 of the wheels, when the centrifugal force is strong at a high speed, the steel beads 131 approach the rims 110 of the wheels, which are the friction parts. It causes friction with the rubber pad 402 coupled to the screw head to generate deceleration.

상기 마찰부는 휠체어와 연결되는 틀(300)과 결합된 나사(400)의 나사머리에 결합된 고무패드(402)와 강철 구슬(131)의 원심력에 의한 바퀴의 테(110)로의 접근으로부터 나사머리에 결합된 고무패드(402)와 강철 구슬(131) 사이에서 마찰력이 발생하는데, 이는 일정 속도 이상으로 인한 원심력에 의해 바퀴의 살(121)에서의 강철 구슬(131)의 이동으로부터 나사머리에 결합된 고무패드(402)까지의 접근이 원인이 되는 것이다.The friction part is a screw head from the approach to the frame 110 of the wheel by the centrifugal force of the rubber pad 402 and steel beads 131 coupled to the screw head of the screw 400 coupled to the frame 300 connected to the wheelchair. A frictional force is generated between the rubber pad 402 and the steel beads 131 coupled to, which is coupled to the screw head from the movement of the steel beads 131 in the spokes 121 of the wheel by centrifugal force caused by more than a certain speed. The approach to the rubber pad 402 is the cause.

상기 너트(401)를 통해 나사(400)의 간격을 조절하여 강철 구슬(131)의 바퀴의 테(110)로의 접근으로 인한 마찰의 발생을 약하거나 강하게 조절 할 수 있어서, 평소 필요한 상황이든 위급한 상황이든 유동적으로 변경이 가능하다.By adjusting the spacing of the screws 400 through the nut 401, it is possible to weakly or strongly control the occurrence of friction due to the approach of the wheel of the steel beads 131 to the rim 110, so whether it is an emergency Circumstances can be flexibly changed.

110 : 바퀴의 테
121 : 바퀴의 살
131 : 강철 구슬
200 : 베어링 커버
300 : 휠처어와 연결되는 틀
400 : 나사
401 : 너트
402 : 나사머리에 결합된 고무패드110: rim of the wheel
121 : spoke of the wheel
131 : Steel Orb
200: bearing cover
300: frame connected to wheelchair
400: screw
401 : Nut
402: rubber pad coupled to the screw head

Claims (3)

원심 감속장치가 구비된 휠체어용 보조바퀴에 있어서,
바퀴의 살(121)에 부착되어 바퀴의 회전에 따라 바퀴중심으로부터 바퀴의 테(110)로 이동하는 강철 구슬; 및
상기 바퀴의 살(121)과 바퀴의 테(110)를 고정시켜주는 중심축의 베어링 커버(200)와;
축의 회전을 가능하게 하며 상기 베어링 커버(200)와 결합된 베어링과;
상기 강철 구슬(131)의 구멍보다 작은 둘레로 이루어져 이동이 가능한 상태로 결합된 상기 바퀴의 살(121)과;
휠체어와 연결되는 틀에 부착되어 너트와 결합하여 고정된 나사(400)와;
상기 나사(400)는 나사머리에 결합된 고무패드(402)와 결합하는 것을 특징으로 하는 원심 감속장치가 구비된 휠체어용 보조바퀴.In the auxiliary wheel for a wheelchair equipped with a centrifugal reduction device,
Steel beads that are attached to the spokes 121 of the wheels and move from the center of the wheels to the rims 110 of the wheels according to the rotation of the wheels; and
a bearing cover 200 of the central shaft for fixing the spokes 121 of the wheels and the rims 110 of the wheels;
a bearing that enables rotation of the shaft and is coupled to the bearing cover 200;
The spokes 121 of the wheels are combined in a movable state made of a smaller perimeter than the holes of the steel beads 131;
a screw 400 attached to the frame connected to the wheelchair and fixed with a nut;
The screw 400 is an auxiliary wheel for a wheelchair equipped with a centrifugal reduction device, characterized in that coupled to the rubber pad 402 coupled to the screw head. 청구항 1에 있어서,
상기 강철 구슬(131)은 회전에의해 바퀴의 테(110)로 이동하여 상기 나사머리에 결합된 고무패드(402)와 마찰을 발생시켜 감속을 일으키는 것을 특징으로하는 원심 감속장치가 구비된 휠체어용 보조바퀴.The method according to claim 1,
The steel ball 131 moves to the rim 110 of the wheel by rotation and generates friction with the rubber pad 402 coupled to the screw head to cause deceleration. auxiliary wheel. 청구항 1에 있어서,
상기 나사(400)는 휠체어에 연결되는 틀(300)에 안쪽 너트(401), 바깥쪽 너트(401)와 결합하며, 너트를 조절하여 거리조정을 통해 상기 강철구슬(131)과의 마찰력을 달리 할 수 있는 것을 특징으로하는 원심 감속장치가 구비된 휠체어용 보조바퀴.
The method according to claim 1,
The screw 400 is coupled to the inner nut 401 and the outer nut 401 in the frame 300 connected to the wheelchair, and the friction force with the steel bead 131 is different by adjusting the nut to adjust the distance. Auxiliary wheel for wheelchair equipped with a centrifugal reduction device, characterized in that it can.
KR1020190159423A 2019-12-03 2019-12-03 Auxiliary wheel of wheel chair having centrifugal deceleration system KR102331996B1 (en)

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* Cited by examiner, † Cited by third party
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KR102596284B1 (en) * 2022-07-13 2023-10-30 치엔-청 수 Automatic Speed Reducing Wheel

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KR20160001145U (en) * 2014-09-27 2016-04-07 조수정 bike wheel bell

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KR19980062490U (en) * 1997-04-03 1998-11-16 정종오 Centrifugal brake backlash prevention device for fishing double bearing reel
US6332513B1 (en) * 2000-09-07 2001-12-25 Jin Sun Gee Plastics Co., Ltd. Safety wheel of a baby's wheeled chair
KR200370128Y1 (en) * 2004-09-08 2004-12-13 김희남 NON-SLIP LOCK CONTROL for WHEEL-CHAIR
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KR20160001145U (en) * 2014-09-27 2016-04-07 조수정 bike wheel bell

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* Cited by examiner, † Cited by third party
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