WO2013141445A1 - Roue à deux vitesses comprenant un dispositif de changement de vitesse pour fauteuil roulant à commande manuelle - Google Patents

Roue à deux vitesses comprenant un dispositif de changement de vitesse pour fauteuil roulant à commande manuelle Download PDF

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Publication number
WO2013141445A1
WO2013141445A1 PCT/KR2012/003955 KR2012003955W WO2013141445A1 WO 2013141445 A1 WO2013141445 A1 WO 2013141445A1 KR 2012003955 W KR2012003955 W KR 2012003955W WO 2013141445 A1 WO2013141445 A1 WO 2013141445A1
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WO
WIPO (PCT)
Prior art keywords
wheelchair
wheel
transmission
plate
reverse prevention
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2012/003955
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English (en)
Korean (ko)
Inventor
이승흥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIMA INTERNATIONAL CO Ltd
Original Assignee
JIMA INTERNATIONAL CO Ltd
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 JIMA INTERNATIONAL CO Ltd filed Critical JIMA INTERNATIONAL CO Ltd
Publication of WO2013141445A1 publication Critical patent/WO2013141445A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • 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
    • A61G5/026—Cranks or hand wheels
    • 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
    • A61G5/023—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 directly on hubs or axis
    • 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
    • A61G5/1054—Large wheels, e.g. higher than the seat portion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion

Definitions

  • the present invention relates to a two-speed wheel including a transmission of a manual wheelchair, and more particularly, to a two-wheel including a transmission of a manual wheelchair to easily climb the uphill by direct manipulation without the help of others. .
  • the wheelchair can be manufactured in various structures according to the user's personal needs and the type of disability, the size is divided into adults and children according to who uses, divided into indoor and outdoor according to the place of use, and operation Depending on the method, it is divided into manual type and electric type.
  • the suitability of the wheelchair should consider the patient's physical condition, safety, diagnosis, prognosis, movement technology, propulsion methods, etc., and should also be easy to fold and push, and should also consider the movement of brakes and footrests.
  • the slope of the ramp that the wheelchair can climb is regulated by 3 degrees for the general purpose and the maximum slope of about 5 degrees, but the length of the ramp should not be more than 6 m. I'm putting it.
  • the present invention has been made in view of the above, and is equipped with a transmission having a planetary gear set capable of driving the wheels with a force of 1/2 to 1/3 to the wheel shaft of the wheelchair, integral with the wheel of the wheelchair
  • a transmission having a planetary gear set capable of driving the wheels with a force of 1/2 to 1/3 to the wheel shaft of the wheelchair, integral with the wheel of the wheelchair
  • the first hand rim which can be used for normal driving operation
  • it is provided with a second hand rim that can be operated when driving on a slope.
  • the first hand rim is used for driving in one step.
  • the second hand rim is operated to move in two stages, and the gear is shifted with the planetary gear set so that the wheels can be driven forward with only 1/2 to 1/3 of the force.
  • the reverse prevention function is activated to reverse the ramp.
  • the present invention for achieving the above object is a wheel for wheelchair; A first hand rim installed on an inner ring of the wheel for wheelchair to manually perform a driving operation; A transmission installed at a fixed shaft at the center of the wheel; A second hand rim mounted to the transmission, the second hand rim being operated by a user to directly input power to the transmission;
  • the transmission includes an outer housing to which the spokes of the wheel for the wheelchair are connected; A ring gear integrally formed on the inner diameter surface of the outer housing;
  • An input element body having a sun gear formed on an outer diameter surface of the inner end, a mounting hole for connection with a second hand rim formed on an outer circumferential surface of the outer end, and an integrally formed hollow end projecting outwardly in the center of the outer end;
  • a planetary power transmission gear meshing with the ring gear while being rotatably supported by a ring structure inserted into and fixed to both ring gears of the outer housing; A rotational planetary gear that is rotatably supported by the ring structure and
  • the reverse prevention plate according to the present invention includes: a base plate having a rectangular plate shape, a mounting end protruding integrally at both ends of the base plate, and mounted at an opening inlet of the hollow end, and extending from one side of the rear end of the base plate, Characterized in that it consists of a reverse prevention stage disposed between the projections.
  • the base plate is arranged to be concentric with the center of the fixed shaft, the reverse prevention end is characterized in that arranged between the projection while forming an eccentricity with the center of the fixed shaft.
  • both ends of the inner end of the opening formed on the upper surface of the hollow end is characterized in that the mounting groove of the wedge cross-section is further mounted to the mounting end of the reverse prevention plate.
  • the outer diameter surface of the hollow end is a reverse prevention cover body is mounted to the front and rear, and the inner pressure surface of the reverse prevention cover body is integrally attached to the elastic pressing end to stand at the inclination angle of the mounting groove by pressing the reverse prevention plate.
  • the support plate is bolted to the mounting hole of the input element, characterized in that the second hand rim for the shift driving operation is mounted on the outer peripheral surface of the support plate.
  • the present invention provides the following effects.
  • the transmission is equipped with a planetary gear set on the wheel axle of the wheelchair, and the second hand rim which can be operated when driving on a slope connected with the planetary gear set to hold and push the second hand rim 1/2 With only a force of 1/3 to 1/3, the wheel can be easily driven forward based on the torque increase and deceleration of the transmission.
  • the forward driving may be made by the operation of holding and pushing the first hand rim connected to the wheel for the wheelchair.
  • the wheel when the wheel is moved by operating the reverse prevention cover body when driving on the ramp using the transmission, the wheel is prevented from reversing immediately even when the second hand rim is released, thereby further increasing safety and convenience for driving on the ramp of the wheelchair. Can be.
  • FIG. 1 and 2 is a perspective view showing a transmission device for a wheelchair according to the present invention
  • Figure 3a and Figure 3b shows a transmission for a wheelchair according to the invention
  • Figure 3a shows a normal (flat) operating state
  • Figure 3b is a cross-sectional view showing a shift operation state when driving on a ramp
  • FIG. 4 is a front view showing the gear meshing state of the transmission for wheelchairs according to the present invention.
  • FIG. 5 and 6 are perspective views illustrating a state of a two-speed wheel including a transmission for a wheelchair according to the present invention
  • Figure 7 is a cross-sectional view illustrating the allowable movement of the backward prevention plate during the forward driving, while driving the ramp of the wheelchair transmission apparatus according to the present invention
  • FIG. 8 is a cross-sectional view illustrating the backward blocking operation of the backward prevention plate at the time of driving forward at the ramp of the wheelchair transmission apparatus according to the present invention.
  • the present invention is equipped with a transmission having a planetary gear set on the wheel shaft of the wheelchair, based on the torque increase and deceleration operation of the transmission with only 1/2 to 1/3 of the force to hold and push the second hand connected to the transmission when driving on a slope
  • the wheels can be easily driven forward to increase the climbing ability of the ramps two to three times with the same arm force, and the backward prevention function works even if the user releases his hand briefly from the hand rim while driving the wheelchair forward.
  • the main point is to prevent the wheelchair from slipping in the backward direction of the ramp.
  • first hand rim 15 for normal driving operation is integrally connected to the inner ring of the wheel 10 for wheelchairs as shown in FIGS. 1 and 2, and FIGS. 5 and 6.
  • a separate transmission is mounted on the central fixed shaft of 10), and at the same time, a second hand rim 18 for directly operating power by a user is connected to the transmission.
  • both ends of the cylindrical outer housing 20 is provided, the outer end portion of the outer housing 20, the mounting end formed with a plurality of wheel fitting holes 26 at equal intervals ( 24) is integrally formed.
  • each of the spokes 12 connected to the inner end of the wheel 10 for the wheelchair 10 is integrally fixed to the wheel fitting hole 26 formed in the mounting end 24 of the outer housing 20.
  • the ring gear 22 is integrally formed along the circumferential direction on the inner diameter surface of the outer housing 20, and preferably, the ring gear 22 has a center in the entire width section of the inner diameter surface of the outer housing 20. It is formed on the area side.
  • the input element 30 is inserted into and mounted from the outside of the outer housing 20.
  • the input element 30 is a structure for initial torque input when driving on a slope, and the sun gear 32 facing the ring gear 22 on the outer diameter surface of the inner end thereof is provided.
  • the outer circumferential surface of the outer end is provided with a mounting hole 34 for connection with the second hand rim 18 which serves as a user's driving operation knob during shifting (when running at an inclined slope).
  • the hollow end 36 is further protruded is provided with a structure formed integrally.
  • the ring structure 40 is inserted and fixed to both ring gear 22 of the outer housing 20, the ring structure 40 is formed in a ring shape to support the planetary gear.
  • the power transmission planetary gear 42 is rotatably supported by the ring structure 40 and meshes with the ring gear 22, and the turning planetary gear 44 is rotatably rotated by the ring structure 40. While being supported, it is engaged with the sun gear 32 and the planetary gear 42 for power transmission at the same time.
  • the reason for adopting two types of planetary gears is that a force for forward driving is input through the input element 30 during driving on the slope and the sun gear 32 is adopted. Is rotated in the forward travel direction, the ring gear 22, which is an output gear, can also be rotated in the same forward travel direction.
  • the direction of switching the rotation direction of the ring gear 22 is the same as the forward traveling rotation direction of the sun gear 32.
  • the conversion planetary gear 44 is adopted.
  • the fixed shaft 50 is arranged across the center of the input element 30 and the ring structure 40, the inner end of the fixed shaft 50 is fixed integrally to the wheelchair frame 14, A plurality of protrusions 52 are integrally formed at the outer end along the circumferential direction.
  • a rectangular opening 37 is formed in the upper surface of the hollow end 36, the opening 37 for the reverse prevention that allows the forward direction rotation of the input element body 30, while blocking the reverse direction rotation
  • the plate 60 is mounted.
  • the anti-retraction plate 60 protrudes integrally from both ends of the base plate 62 having a rectangular plate shape arranged in the opening 37 and the front end of the base plate 62.
  • a reverse prevention stage 66 extending between the mounting end 64 mounted above the opening 37 of the opening 36 and the protrusion 52 of the fixed shaft 50 extending from one side of the rear end of the base plate 62. It is provided with an integrated structure.
  • both ends of the inner end of the opening 37 formed on the upper surface of the hollow end 36 is formed with a groove 38 of the wedge cross section on which the mounting end 64 of the anti-retraction plate 60 is mounted.
  • the inclined surface of the mounting groove 38 is formed to be inclined downward from the outside inward.
  • the base plate 62 and the reverse prevention end 66 of the reverse prevention plate 60 are inserted into the opening 37 of the hollow end 36 so that the base plate 62 is the outer circumferential surface of the fixed shaft 50.
  • the mounting end 64 is mounted to the mounting groove 38, and also the reverse prevention stage 66 is arranged between the projections 52 of the fixed shaft 50.
  • the base plate 62 is arranged to be concentric with the center of the fixed shaft 50
  • the reverse stop 66 is the projection of the fixed shaft 50 while forming an eccentricity with the center of the fixed shaft 50
  • the bottom surface of the reverse prevention stage 66 is in a state slightly floating from the outer diameter surface between the projections 52 of the fixed shaft 50.
  • the reverse prevention cover body 70 is mounted on the outer diameter surface of the hollow end 36 so as to be able to move forward and backward.
  • a male thread (39) is formed at the outer diameter surface end of the hollow end (36), and a female thread (74) is screwed with the male thread (39) at the inner diameter surface end of the reverse cover (70).
  • a female thread (74) is screwed with the male thread (39) at the inner diameter surface end of the reverse cover (70).
  • the mounting end 64 is in close contact with the inclined surface of the mounting groove 38, consequently the reverse prevention plate 60
  • the elastic pressing stage 72 is mounted integrally so that) is set at the inclined surface angle of the mounting groove 38.
  • a disc-shaped support plate 16 is fastened by bolts to the mounting hole 34 of the input element 30, and a second shift driving operation that can be held by a user by the user on the outer circumferential surface of the support plate 16.
  • the hand rim 18 is assembled integrally.
  • the rear end portion of the reverse prevention plate 60 that is, the reverse prevention end 66 is lifted up while being spaced apart from the protrusion 52 of the fixed shaft 50, and eventually the reverse prevention end 66. And interference between the protrusions 52 of the fixed shaft 50 do not occur at all.
  • the wheel 10 connected to the first hand rim 15 makes a cloud movement in the forward direction, thereby driving the wheelchair forward.
  • This is made, on the contrary, if the user sitting on the wheelchair to hold the first hand rim (15) and pushed to the rear, the wheel 10 is connected to the first hand rim (15) to the cloud movement in the backward direction, Reverse travel is made.
  • the anti-retraction plate 60 including the input element 30 together with the wheel 10 also rotates in the reverse direction, but as shown in FIG. 3A, the anti-retraction plate 60 is shown. Is obliquely erected so that no interference between the reverse prevention stage 66 and the projection 52 of the fixed shaft 50 is not generated at all, the backward running of the wheelchair is made easy.
  • the sun gear 32 formed at the inner end of the input element 30 is in the forward direction.
  • the hollow end 36 formed at the outer end also rotates in the forward direction.
  • the backward preventing plate 60 is also rotated in the forward direction with the input element 30, at the same time shown in Figure 7 As the projection 52 of the fixed shaft 50 slides in close contact with the bottom surface of the reverse prevention stage 66 of the reverse prevention plate 60, the projection 52 of the fixed shaft 50 eventually retracts. Since the backward prevention end 66 of the prevention plate 60 is not restrained, the forward direction rotation of the input element 30 is easily performed.
  • the transmission gear planetary gear 42 is rotated in the forward direction of the input element body 30 by the rotation direction switching operation of the rotational planetary gear 44 engaged with the sun gear 32 at the same time. Is rotated in the same forward direction as the sun gear 32, and the ring gear 22 in the outer housing 20 which is subsequently engaged with the power transmission planetary gear 42 rotates in the forward direction, resulting in an external housing 20 At the same time as to rotate in the forward direction, the wheel 10 connected by the outer housing 20 and the spokes 12 is rotated in the forward direction, the wheelchair forward running on the ramp is made.
  • the wheel 10 including the input element 30 does not rotate in the reverse direction, thereby increasing user convenience.
  • wheelchair frame 15 first hand rim

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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)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Structure Of Transmissions (AREA)
PCT/KR2012/003955 2012-03-21 2012-05-18 Roue à deux vitesses comprenant un dispositif de changement de vitesse pour fauteuil roulant à commande manuelle Ceased WO2013141445A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2012-0028806 2012-03-21
KR1020120028806A KR101185028B1 (ko) 2012-03-21 2012-03-21 수동 휠체어의 변속장치를 포함한 2단 휠

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WO2013141445A1 true WO2013141445A1 (fr) 2013-09-26

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PCT/KR2012/003955 Ceased WO2013141445A1 (fr) 2012-03-21 2012-05-18 Roue à deux vitesses comprenant un dispositif de changement de vitesse pour fauteuil roulant à commande manuelle

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WO (1) WO2013141445A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101379605B1 (ko) 2013-03-13 2014-04-02 국립대학법인 울산과학기술대학교 산학협력단 수동식휠체어
KR101705291B1 (ko) 2016-10-19 2017-02-09 문현덕 휠체어용 경사로 주행 보조장치
KR101801273B1 (ko) 2016-10-19 2017-11-24 문현덕 휠체어용 핸드 림 브레이크 장치
KR102181426B1 (ko) 2018-11-08 2020-11-24 문현덕 변속 및 역행방지 장치
KR102725111B1 (ko) 2022-12-13 2024-10-31 원광대학교산학협력단 휠체어용 경사로 주행 보조장치
KR102724784B1 (ko) * 2023-01-13 2024-11-01 대한민국 회전손잡이의 회전방향 정역 전달이 가능한 휠체어
KR102807979B1 (ko) * 2023-03-10 2025-05-15 충북대학교 산학협력단 수동휠체어의 주행보조장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10174700A (ja) * 1996-12-17 1998-06-30 Aisin A W Kogyo Kk 階段クライミング車椅子
JP2007061494A (ja) * 2005-09-01 2007-03-15 Pihsiang Machinery Mfg Co Ltd 動力源付車椅子用動力起動構造
JP2007075479A (ja) * 2005-09-16 2007-03-29 Toshihiko Yasuda 走行アシスト機能付き片手用車椅子
KR20100045403A (ko) * 2008-10-23 2010-05-03 변동환 수동 휠체어 바퀴와 그 것을 제어하는 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10174700A (ja) * 1996-12-17 1998-06-30 Aisin A W Kogyo Kk 階段クライミング車椅子
JP2007061494A (ja) * 2005-09-01 2007-03-15 Pihsiang Machinery Mfg Co Ltd 動力源付車椅子用動力起動構造
JP2007075479A (ja) * 2005-09-16 2007-03-29 Toshihiko Yasuda 走行アシスト機能付き片手用車椅子
KR20100045403A (ko) * 2008-10-23 2010-05-03 변동환 수동 휠체어 바퀴와 그 것을 제어하는 장치

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