WO2018212492A1 - Unité de frein pour fauteuil roulant - Google Patents

Unité de frein pour fauteuil roulant Download PDF

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Publication number
WO2018212492A1
WO2018212492A1 PCT/KR2018/005242 KR2018005242W WO2018212492A1 WO 2018212492 A1 WO2018212492 A1 WO 2018212492A1 KR 2018005242 W KR2018005242 W KR 2018005242W WO 2018212492 A1 WO2018212492 A1 WO 2018212492A1
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WO
WIPO (PCT)
Prior art keywords
wheelchair
brake
pin
joint
rotated
Prior art date
Application number
PCT/KR2018/005242
Other languages
English (en)
Korean (ko)
Inventor
이일열
Original Assignee
이일열
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이일열 filed Critical 이일열
Publication of WO2018212492A1 publication Critical patent/WO2018212492A1/fr

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Classifications

    • 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
    • A61G5/1018—Wheelchairs having brakes engaging the wheel on the running surface
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
    • B60B33/0081—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on tire tread

Definitions

  • the present invention relates to a brake unit for a wheelchair, and more particularly, a brake that controls a large wheel in a wheelchair is applied as a toggle brake applied to a four-section link, and a non-slip resistant reverse prevention function is integrated. It relates to a brake unit for wheelchairs to be installed in the modules and also to allow them to be easily operated by the user.
  • a wheelchair is a chair equipped with a large wheel and a caster (front auxiliary wheel) for steering so that a patient, an elderly person or a disabled person who is incapable of movement can move while sitting.
  • a conventional manual wheelchair includes a frame 17 having a seat 11, a backrest 12, a handle 13, and an armrest 16 on a frame 17, and a frame 17 of the frame 17.
  • Large wheels 20 mounted on both sides, a hand rim provided on the outside of the large wheels 20, and casters 21 mounted on both sides of the frame 17 to adjust the traveling direction;
  • a footrest 18 mounted on the front of the frame 17 and brakes 25 mounted on both left and right sides of the frame 17 to decelerate or stop the rotational speed of the large wheel 20.
  • the brake 25 is made by a combination of a plurality of links is configured to perform a constant limiting motion in a fixed state at a specific position of the frame 17.
  • Such a conventional manual wheelchair can be moved by the guardian or the caregiver, such as holding the handle 13 by pushing or moving the large wheel 20 by turning the wheel handle back and forth by hand while the user is in the wheelchair, and also brake By operating (25), the movement speed can be reduced or stopped.
  • the user has to turn the wheel handle and then turn the wheel handle momentarily so that it is difficult and difficult.
  • a weak user such as an elderly person, loses his hand holding the wheel handle. There is a significant risk of being pushed back by a sliding backwards without any risk, leading to safety accidents such as falling and falling.
  • a non-slip device for wheelchairs In order to solve such a problem that the conventional manual wheelchair is going backward while going uphill, for example, the Republic of Korea Utility Model Registration No. 20-0475891 has been disclosed a non-slip device for wheelchairs. It consists of a structure in which a stopper is rotatably mounted on the back of a large wheel, and it is connected with a handle and a wire, and when the handle is pulled out, the stopper falls off from the ground, and when the handle is released, the stopper returns to its original position and remains in contact with the ground. It can be prevented from reversing at the time of stopping at the station or starting from the ramp.
  • the present inventors put emphasis on solving the limitations and problems of the conventional wheelchair brakes by comprehensively considering the above-mentioned matters, so that the user can easily operate the brake function and the anti-backlash function selectively and largely.
  • the wheel automatically releases the braking force when it is naive and does not obstruct the roll, and automatically brakes when it is reversed to prevent the wheelchair from going backwards when stopping on or off the ramp.
  • the present invention has been devised as a result of constant research to develop a brake unit for wheelchairs with a new structure that can achieve the effect of doing so.
  • Specific means according to an embodiment of the present invention for achieving the object as described above and to solve the technical problem is a mounting bracket for mounting on the frame of the wheelchair, the mounting bracket is mounted to, and operated by the operation of the lever handle When the large wheels of the wheelchair are naive, they release the braking force so that they do not interfere with the rolling, and are mounted on the anti-backlash device and the mounting bracket that brake when reversed, and are operated by the operation of the braking handle to brake the large wheels of the wheelchair.
  • a brake unit for wheelchairs is proposed, which includes a toggle brake in one module.
  • the present invention can be conveniently operated by selectively operating the brake function and the anti-backlash function without removing the arm from the armrest while the user is in a wheelchair.
  • Embodiments of the present invention having a means and a configuration for achieving the above object and the technical problem, by placing the brake and the anti-backlash device in one unit to be ergonomic and easy to recognize while the user is sitting in a wheelchair
  • the brake function and anti-backlash function can be selectively operated easily without removing the arm from the armrest, reducing malfunction.
  • the braking force does not interfere with the pulley roll when the wheel of the wheelchair is naive, and automatically brakes the big wheels only in reverse, so that the wheelchair is starting on or off the ramp It can be reliably prevented from being reversed at times.
  • a toggle brake and a backlash prevention device are installed in one module to control a large wheel, thereby simplifying the user's operation and greatly reducing the economic cost.
  • 1 is an exemplary view showing a conventional wheelchair.
  • FIG. 2 is a side view illustrating a state in which a wheelchair brake unit is mounted on a wheelchair according to an exemplary embodiment of the present invention.
  • FIG. 3 is an enlarged view of a local part of FIG. 2;
  • FIG. 4 is a perspective view of a brake unit for a wheelchair according to an exemplary embodiment of the present invention.
  • FIG. 5 is a partially enlarged side view illustrating a toggle brake of a wheelchair brake unit according to an exemplary embodiment of the present invention, and a reverse prevention device being released.
  • FIGS. 6 and 7 are locally enlarged side views of a toggle brake of the wheelchair brake unit according to an exemplary embodiment of the present invention, in which the toggle brake is deactivated and the reverse prevention device is locked.
  • FIG. 8 is a perspective view showing a reverse prevention device forming a brake unit for a wheelchair according to an embodiment of the present invention.
  • FIG. 9 is an exploded view illustrating the reverse prevention device of the brake unit for a wheelchair according to an exemplary embodiment of the present invention.
  • FIG. 10 is a state diagram showing a mounting bracket to which a toggle brake and a reverse prevention device according to the present invention are installed.
  • 11 to 13 are diagrams illustrating the use of braking principles according to an embodiment of the present invention.
  • braking handle 200 backlash prevention device
  • lever handle 220 driven
  • first spring 270 second spring
  • a part when a part includes a certain component, this means that the component may not include other components, but may further include other components unless specifically stated otherwise.
  • the brake unit for a wheelchair includes a mounting bracket 110, a toggle brake 150 and a reverse prevention device 200.
  • Mounting bracket 110 is provided to be easily mounted on the frame (F) of the wheelchair. (See Figs. 2 and 10)
  • the mounting bracket 110 can be fixed and joined by a method such as bolting or welding, placed in a predetermined installation position of the wheelchair frame (F).
  • the toggle brake 150 is used to generate the braking force necessary to decelerate, hold, stop, or hold the wheelchair in a certain position.
  • the toggle brake 150 is operated by the operation of the brake handle 151 to operate the large wheel of the wheelchair. Is mounted to the mounting bracket 110 to brake W).
  • the toggle brake 150 may be fixed and joined to the mounting bracket 110 by bolting or welding.
  • the toggle brake 150 may employ a structure formed by a plurality of link combinations to perform a fixed motion in a fixed state to the mounting bracket 110.
  • the toggle brake 150 is in close contact with the large wheels W of the wheelchair by the operation of the braking handle 151 as shown in FIGS. 5 and 11 to brake the large wheels W of the wheelchair to stop the movement. do.
  • the reverse prevention device 200 is operated by the operation of the lever handle 212 so that the braking force is released so as not to disturb the rolling when the large wheels W of the wheelchair are naive, and the mounting bracket 110 is automatically braked when the reverse is reversed. )
  • the reverse prevention apparatus 200 is configured in a four-section link structure so as to prevent the reverse movement by restraining the large wheel (W) of the wheelchair according to the operation of the lever handle 212 of the wheelchair user.
  • anti-backlash device 200 is disposed on the mounting bracket 110 so as not to interfere with the trajectory to rotate and operate the toggle brake 150 as shown in Figures 3 and 10.
  • the reverse prevention device 200 is largely the main copper 210, driven 220, coupler 230, brake shoe 240, stopper 250, the first and second spring 260, 270 It is configured to include (see Figs. 8 and 9).
  • the main joint 210 is a pin joint by the mounting bracket 110 and the first shaft pin 211 so as to rotate at a predetermined angle about the first shaft pin 211 by the operation of the lever handle 212. Is connected.
  • the main joint 210 is configured to be capable of rotation within a predetermined angle range around the first shaft pin 211.
  • the outer circumference of the first shaft pin 211 is formed by inserting a sleeve (sleeve) freely rotated without restraining the first shaft pin 211, etc., as well as smooth rotation of the main joint 210 with respect to the mounting bracket 110 A user's hand or the like may prevent a risk of directly contacting or curling the first shaft pin 211 during use.
  • the driven joint 220 is a pin joint by the mounting bracket 110 and the second shaft pin 221 so as to rotate in a predetermined angle around the second shaft pin 221 according to the rotation of the main shaft 210. joint).
  • both ends of the left and right of the driven joint 220 is selectively caused to interfere with both sides of the main joint 210, the main joint 210 is formed to rotate within a predetermined angle.
  • the driven joint 220 has a predetermined angle range around the first shaft pin 211 at the main shaft 210 when the direction of the lever handle 212 is changed and operated for the operation and release of the reverse prevention apparatus 200. It's designed to be easy to rotate inside.
  • the coupler 230 maintains the driven shaft 220 in a state where the driven shaft 220 is rotated at a predetermined angle about the second shaft pin 221 while the driven shaft 220 is interlocked with the main shaft 210. ) And the driven joint 220 are connected at both ends by a pin joint.
  • the coupler 230 functions as a link to connect the driven joint 220 so as to perform a constant limited motion with respect to the main joint 210.
  • the brake shoe 240 is used to generate the braking force required to hold and stop the large wheel W of the wheelchair.
  • One end portion of the brake shoe 240 is operated by manipulation of the lever handle 212. Is connected to the pin joint by the third end pin (241) and the third end pin (241), and the other end (opposite side) is in close contact with the wheel (W) of the wheelchair selectively, causing friction and a pad 242 for holding and stopping.
  • the pad 242 contacts the large wheel W of the wheelchair to realize a stable braking force.
  • the first shaft pin 211 connecting the main joint 210 with the mounting bracket 110 and The follower 220 is formed at a lower position than the second shaft pin 221 connecting with the mounting bracket 110.
  • the pad 242 is preferably fixed to the brake shoe 240 by a method such as bolting so that the pad 242 can be easily replaced with a new one.
  • the stopper 250 of the follower 220 may cause contact interference with the brake shoe 240 when the brake shoe 240 rotates about the third pin shaft 241 in the reverse direction of the wheelchair wheel W.
  • FIG. It is located at the bottom edge.
  • the stopper 250 is a brake shoe 240 while maintaining the state in which the pad 242 of the brake shoe 240 is in close contact with the large wheel (W) of the wheelchair when the large wheel (W) of the wheelchair rotates in the reverse direction ) Is restrained from being rotated by a predetermined angle about the third pin shaft 241 to prevent the large wheels W of the wheelchair from rotating in the reverse direction.
  • the first spring 260 is compressed when the main shaft 210 is rotated by the locking operation of the lever handle 212, and then the return force is rotated when the main shaft 210 is rotated by the unlocking operation of the lever handle 212.
  • the main joint 210 and the driven joint 220 By rotating the main joint 210 and the driven joint 220 to return to its original position.
  • the first spring 260 is a sieve fitted to the second shaft pin 221 at the center thereof so as to maintain the compressed and decompressed state according to the rotation of the main shaft 210. Is coupled to 220.
  • the second spring 270 is compressed when the brake shoe 240 rotates in the forward direction of the wheelchair big wheel W about the third shaft pin 241 and then the large wheel W of the wheelchair is directed in the reverse direction. By switching to the elastic force to rotate the brake shoe 240 to return to its original position by the return force.
  • both ends of the second spring 270 are inserted into the third shaft pin 241 so that the center thereof is compressed and decompressed according to the rotation of the brake shoe 240 about the third shaft pin 241. It is coupled to the stopper 250 and the brake shoe 240.
  • the first and second springs 260 and 270 may preferably use a torsional coil spring that provides a force that repels the load applied by the elastic deformation, but is not limited thereto.
  • a rubber spring may be used.
  • any effect may be used as long as it has the same effect to resist the force to compress.
  • the reverse prevention apparatus 200 forms a third shaft pin 241 at one end of the driven section 220 of the four-section link, and uses the third shaft pin 241 as the rotation shaft of the brake shoe 240.
  • the brake shoe 240 may be provided to rotate about the center.
  • the stopper (a) is attached to the driven section 220 of the lower end of the virtual line. 250 may be located (see FIGS. 10 and 11).
  • the imaginary line directions connecting the s may be formed at an acute angle to each other (FIGS. 12 and 13).
  • the brake shoe 240 may be formed to have a backlash from the contact with the large wheels W of the wheelchair to the stopper 250. (See Figure 13)
  • the toggle brake 150 may keep the large wheels W of the wheelchair locked by pushing or pulling the braking handle 151. have.
  • the main driving 210 when driving in a flat place, such as a wheelchair by pushing the lever handle 212 of the reverse prevention device 200 to the operation release state, the main driving 210 is centered around the first shaft pin (211) It can rotate naturally to achieve the disabled state.
  • the lever handle 212 when driving on a ramp in a wheelchair, as shown in FIGS. 6 and 13, when the lever handle 212 is pulled toward the large wheel W and operated to switch to the operating state, the main shaft 210 is operated by the first shaft pin 211.
  • the pad 242 of the brake shoe 240 may be in close contact with the large wheel W while naturally rotating about the center.
  • the first step is to attach the brake shoe 240 first.
  • the pad 242 when the pad 242 is brought into close contact with the large wheel W, and the vehicle continually reverses due to the weight of the wheelchair, the pad 242 rotates about the third shaft pin 241.
  • a backlash is formed in a certain period and the brake shoe 240 stops rotation of the large wheel W while the rotation is stopped by the stopper 250.
  • the brake shoe 240 rotates around the third shaft pin 241 so that the brake shoe 240 moves away from the stopper 250 and the large wheel (W). Will not interfere with the rotation of the. Therefore, the wheelchair can proceed forward without being reversed while repeating the stop and the driving during the ramp.
  • the braking force of the backward prevention device 200 is released, thereby preventing the wheelchair from inadvertently sliding backward while climbing the ramp, and the pad 242 of the brake shoe 240.
  • the end is rotated about the third shaft pin 241 to be stopped by the stopper 250 while turning a certain section while being in contact with the large wheel (W) in the wheelchair through the cushioning and stable braking of the stationary state
  • W large wheel

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • 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)
  • Braking Arrangements (AREA)

Abstract

L'objet de la présente invention est de pourvoir à une unité de frein pour fauteuil roulant qui fournit un frein pour le freinage des grandes roues d'un fauteuil roulant et une fonction dispositif anti-déplacement en sens inverse pour contrôler le déplacement des grandes roues dans le sens inverse, et permettre à un utilisateur de les manœuvrer commodément. Pour ce faire, l'unité de frein pour fauteuil roulant selon l'invention comprend : un support de montage destiné à être monté sur le châssis d'un fauteuil roulant ; un dispositif anti-déplacement en sens inverse monté sur le support de montage et actionné par manipulation d'une poignée de levier de façon qu'une force de freinage soit libérée lors du déplacement vers l'avant des grandes roues du fauteuil roulant, ce qui ne gêne pas son roulement, et qu'un freinage soit appliqué pendant le déplacement en sens inverse ; et un frein à bascule monté sur le support de montage et actionné par manipulation d'une poignée de freinage de façon que les grandes roues du fauteuil roulant soient freinées.
PCT/KR2018/005242 2017-05-16 2018-05-12 Unité de frein pour fauteuil roulant WO2018212492A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0060599 2017-05-16
KR1020170060599A KR101982323B1 (ko) 2017-05-16 2017-05-16 휠체어용 브레이크 유닛

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WO2018212492A1 true WO2018212492A1 (fr) 2018-11-22

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PCT/KR2018/005242 WO2018212492A1 (fr) 2017-05-16 2018-05-12 Unité de frein pour fauteuil roulant

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102436069B1 (ko) * 2022-02-03 2022-08-25 주식회사 웃샘 휠체어용 환자 격리장치
KR102436070B1 (ko) * 2022-02-03 2022-08-24 주식회사 웃샘 환자 격리부가 설치된 휠체어 지지장치

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10225485A (ja) * 1996-12-11 1998-08-25 Paatona:Kk 車椅子の走行装置
JP2001299824A (ja) * 2000-04-25 2001-10-30 Yutaka Takatsu 車椅子の後退防止機構
JP2006289005A (ja) * 2005-04-11 2006-10-26 Noboru Inoue 車椅子用ブレーキ
JP2011172799A (ja) * 2010-02-25 2011-09-08 Gunji Kk 車椅子の車輪ロック装置及び車輪逆転防止装置
JP2012045300A (ja) * 2010-08-30 2012-03-08 Sun-A:Kk 車椅子ストッパーおよび車椅子静止方法
KR200475891Y1 (ko) * 2013-08-30 2015-01-13 김봄 휠체어용 미끄럼 방지장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0116164Y1 (ko) 1991-10-25 1998-04-17 이근성 휠체어용 토글브레이크 장치
KR200161937Y1 (ko) 1998-01-13 1999-12-01 이근성 휠체어용 브레이크.
KR100859327B1 (ko) 2007-06-14 2008-09-19 김지웅 휠체어 브레이크 장치
JP5453360B2 (ja) 2010-11-24 2014-03-26 フランスベッド株式会社 ブレーキ付き車椅子

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10225485A (ja) * 1996-12-11 1998-08-25 Paatona:Kk 車椅子の走行装置
JP2001299824A (ja) * 2000-04-25 2001-10-30 Yutaka Takatsu 車椅子の後退防止機構
JP2006289005A (ja) * 2005-04-11 2006-10-26 Noboru Inoue 車椅子用ブレーキ
JP2011172799A (ja) * 2010-02-25 2011-09-08 Gunji Kk 車椅子の車輪ロック装置及び車輪逆転防止装置
JP2012045300A (ja) * 2010-08-30 2012-03-08 Sun-A:Kk 車椅子ストッパーおよび車椅子静止方法
KR200475891Y1 (ko) * 2013-08-30 2015-01-13 김봄 휠체어용 미끄럼 방지장치

Also Published As

Publication number Publication date
KR101982323B1 (ko) 2019-05-24
KR20180125809A (ko) 2018-11-26

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