EP2471499A1 - Mécanisme d'inclinaison de fauteuil roulant - Google Patents

Mécanisme d'inclinaison de fauteuil roulant Download PDF

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Publication number
EP2471499A1
EP2471499A1 EP10197454A EP10197454A EP2471499A1 EP 2471499 A1 EP2471499 A1 EP 2471499A1 EP 10197454 A EP10197454 A EP 10197454A EP 10197454 A EP10197454 A EP 10197454A EP 2471499 A1 EP2471499 A1 EP 2471499A1
Authority
EP
European Patent Office
Prior art keywords
wheelchair
tilting mechanism
pair
seat support
pivot
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.)
Withdrawn
Application number
EP10197454A
Other languages
German (de)
English (en)
Inventor
Chen-Chang Huang
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.)
A & I Industries Ltd Shunde Foshan
Taiwan AN I Co Ltd
Original Assignee
A & I Industries Ltd Shunde Foshan
Taiwan AN I 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 A & I Industries Ltd Shunde Foshan, Taiwan AN I Co Ltd filed Critical A & I Industries Ltd Shunde Foshan
Priority to EP10197454A priority Critical patent/EP2471499A1/fr
Publication of EP2471499A1 publication Critical patent/EP2471499A1/fr
Withdrawn legal-status Critical Current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
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
    • 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
    • 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
    • A61G5/1089—Anti-tip devices
    • 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
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
    • 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
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet

Definitions

  • the present invention relates to a wheel chair tilting mechanism, and more particularly to a wheelchair tilting mechanism that allows stepless adjustment of the seat of a wheelchair to different rearward angular positions.
  • a wheelchair is a very common medical aid mainly applied to a patient who is unable to move conveniently, so that the patient can sit on the wheelchair and move to different places with the help of a nurse. Alternatively, the patient sitting on the wheelchair can move the wheelchair to different places by pushing a handle on boosting wheels.
  • wheelchairs of various types and models available in the market. These wheelchairs can be generally divided into two categories, namely, ordinary wheelchairs and sports wheelchairs. Generally speaking, the wheelchairs that can be easily purchased in the market are ordinary wheelchairs. The sports wheelchairs are more expansive compared to the ordinary wheelchairs and are usually customized.
  • a primary object of the present invention is to overcome the problems in using the conventional wheelchairs by providing a wheelchair tilting mechanism that has simple structure and can be effortlessly manipulated to steplessly adjust the seat of a wheelchair to different rearward angular positions Therefore, apatient may comfortably sit or recline on the wheelchair according to his or her actual need.
  • the wheelchair tilting mechanism enables efficient nursing and easily solves the problem that the aged or the patient requires frequent change in posture to sit or to lie down.
  • the wheelchair with the tilting mechanism of the present invention is very suitable for use in home, hospital and nursing home.
  • the wheelchair tilting mechanism includes a seat support, a wheel support, and a control unit.
  • the seat support is provided with pivot members and guide bars.
  • the wheel support is provided with pivot pins, to which the pivot members are rotatably connected.
  • the control unit includes handlebars, actuating levers, cylinders, and push bars.
  • the actuating levers are located below the handlebars to connect to the seat support via linking elements, and fastening devices are provided at joints of the seat support and the linking elements.
  • a control valve is provided on each of the linking elements.
  • the push bars are separately movably received in the cylinders with an end mounted on the wheel support and the other end articulated to the linking elements and fixed to the guide bars.
  • the cylinders are fixedly mounted to the wheel support.
  • the linking elements are steel cables.
  • the pivot members are respectively provided with a pivot hole, into which the pivot pins are extended.
  • the pivot pins are externally provided with screw threads
  • the pivot members are respectively provided with a nut corresponding to the screw threads on the pivot pins.
  • the steel cables are moved to open the control valves and cause the push bars to be extendable from the cylinders.
  • the user may then downward push the handlebars or a horizontal bar, so that the seat support is brought to pivotally turn about the pivot pins extended into the pivot holes on the pivot members and become tilted rearward.
  • the push bars are brought to retract into the cylinders.
  • the actuating levers 12 can be released for the steel cables to bring the control valves to a closed state. By doing this, the seat support can be held to the tilted position.
  • the wheelchair tilting mechanism allows a patient sitting on the wheelchair to change his or her posture, so as to help the patient to relieve his or her buttocks from too much pressure and overcome the possible postural hypotension.
  • the present invention also helps a patient suffering from hypertension to recover sooner.
  • Fig. 1 is a perspective view showing a wheelchair before a tilting mechanism of the present invention provided therewith is manipulated to tilt the wheelchair;
  • Fig. 2 is a perspective view showing the wheelchair of Fig. 1 is tilted through manipulation of the tilting mechanism thereof.
  • a wheelchair 1 having wheels 3, a braking device (not shown), a pair of footplates 4, two armrests 5, a seat 6, and a backrest 7.
  • the wheelchair 1 is characterized by including a tilting mechanism 2 according to the present invention.
  • the tilting mechanism 2 includes a seat support 8, a wheel support 9, and a control unit.
  • the seat 6 is mounted on the seat support 8.
  • the backrest 7 is so disposed that an angle is contained between the backrest 7 and the seat 6, and the angle is adjustable through manipulating the tilting mechanism 2.
  • a pair of handlebars 10 and a horizontal bar 11 are fixedly mounted behind the backrest 7.
  • a pair of actuating levers 12 is located immediately below the pair of handlebars 10, and each of the actuating levers 12 is connected to the seat support 8 via a linking element 13.
  • the linking element 13 is a steel cable.
  • a fastening device 14 is provided at a joint of the seat support 8 and each of the linking elements 13, and a control valve 15 is provided on each of the linking elements 13.
  • the seat support 8 is provided at predetermined positions with a pair of pivot members 81 and a pair of guide bars 82.
  • the wheel support 9 is provided at predetermined positions with a pair of pivot pins 91, to which the pivot members 81 are correspondingly rotatably connected.
  • the pivot members 81 are respectively provided with a pivot hole (not shown), into which the pivot pins 91 are extended.
  • the pivot pins 91 are externally provided with screw threads (not shown), and the pivot members 81 are provided with nuts (not shown) corresponding to the screw threads of the pivot pins 91.
  • the control unit includes a pair of cylinders 16, a pair of push bars 17, and a pair of acting members (not shown).
  • the cylinders 16 are fixedly mounted on the wheel support 9, and the push bars 17 are separately movably received in the cylinders 16.
  • the push bars 17 respectively have an end fixedly connected to the wheel support 9 and another opposite end articulated to the linking elements 13 and fixed to the guide bars 82 via fastening devices 14.
  • the steel cables 13 are moved to open the control valves 15 and cause the push bars 17 to be extendable from the cylinders 16.
  • the user may then downward push the handlebars 10 or the horizontal bar 11, so that the seat support 8 is brought to pivotally turn about the pivot pins 91 extended into the pivot holes on the pivot members 81 and become tilted rearward.
  • the push bars 17 are brought to retract into the cylinders 16.
  • the actuating levers 12 can be released for the steel cables 13 to bring the control valves 15 to a closed state. By doing this, the seat support 8 can be held to the tilted position.
  • the wheelchair tilting mechanism 2 allows a patient sitting on the wheelchair 1 to change his or her posture, so as to help the patient to relieve his or her buttocks from too much pressure and overcome the possible postural hypotension.
  • the present invention also helps a patient suffering from hypertension to recover sooner.
  • the procedures for a user to manipulate the wheelchair tilting mechanism 2 of the present invention are as follows. First, exert an upward force to push the actuating levers 12, so that the steel cables 13 are moved to open the control valves 15 and cause the push bars 17 to be extendable from the cylinders 16. Then, downward push the handlebars 10 or the horizontal bar 11, so that the seat support 8 is brought to pivotally turn about the pivot pins 91 extended into the pivot holes on the pivot members 81 and become tilted rearward. At this point, the push bars 17 are brought to retract into the cylinders 16. When the seat support 8 has been rearward tilted to a desired angular position, release the actuating levers 12 for the steel cables 13 to bring the control valves 15 to a closed state.
  • the seat support 8 can be held to the tilted position, as shown in Fig. 2 .
  • the handlebars 10 and the horizontal bar 11 could not be downward pushed if the actuating levers 12 are not upward pushed.
  • the seat support 8 can be steplessly adjusted to any desired tilting position.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP10197454A 2010-12-31 2010-12-31 Mécanisme d'inclinaison de fauteuil roulant Withdrawn EP2471499A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10197454A EP2471499A1 (fr) 2010-12-31 2010-12-31 Mécanisme d'inclinaison de fauteuil roulant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10197454A EP2471499A1 (fr) 2010-12-31 2010-12-31 Mécanisme d'inclinaison de fauteuil roulant

Publications (1)

Publication Number Publication Date
EP2471499A1 true EP2471499A1 (fr) 2012-07-04

Family

ID=43902639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10197454A Withdrawn EP2471499A1 (fr) 2010-12-31 2010-12-31 Mécanisme d'inclinaison de fauteuil roulant

Country Status (1)

Country Link
EP (1) EP2471499A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103110486A (zh) * 2013-03-06 2013-05-22 胡三清 牙齿控制的轮椅装置及方法
CN104309627A (zh) * 2014-10-14 2015-01-28 长春轨道客车股份有限公司 轨道交通无障碍轮椅固定器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732423A (en) * 1986-10-27 1988-03-22 Bio-Architectural Design, Inc. Invalid's chair construction
WO1997023187A1 (fr) * 1995-12-21 1997-07-03 Degonda-Rehab S.A. Dispositif de siege inclinable stationnaire ou roulant, notamment pour malade ou handicape
EP0876783A2 (fr) * 1997-05-06 1998-11-11 Broda Enterprises Inc. Chaise inclinable
US20020030350A1 (en) * 1998-04-14 2002-03-14 Ian Brotherston User-propelled geriatric chair
US20040049841A1 (en) * 1999-10-13 2004-03-18 Ian Brotherston Commode chair

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732423A (en) * 1986-10-27 1988-03-22 Bio-Architectural Design, Inc. Invalid's chair construction
WO1997023187A1 (fr) * 1995-12-21 1997-07-03 Degonda-Rehab S.A. Dispositif de siege inclinable stationnaire ou roulant, notamment pour malade ou handicape
EP0876783A2 (fr) * 1997-05-06 1998-11-11 Broda Enterprises Inc. Chaise inclinable
US20020030350A1 (en) * 1998-04-14 2002-03-14 Ian Brotherston User-propelled geriatric chair
US20040049841A1 (en) * 1999-10-13 2004-03-18 Ian Brotherston Commode chair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103110486A (zh) * 2013-03-06 2013-05-22 胡三清 牙齿控制的轮椅装置及方法
CN104309627A (zh) * 2014-10-14 2015-01-28 长春轨道客车股份有限公司 轨道交通无障碍轮椅固定器

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