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WO1988003012A1 - Fauteuil roulant pour handicapes, permettant notamment de monter les escaliers - Google Patents

Fauteuil roulant pour handicapes, permettant notamment de monter les escaliers Download PDF

Info

Publication number
WO1988003012A1
WO1988003012A1 PCT/HU1986/000057 HU8600057W WO8803012A1 WO 1988003012 A1 WO1988003012 A1 WO 1988003012A1 HU 8600057 W HU8600057 W HU 8600057W WO 8803012 A1 WO8803012 A1 WO 8803012A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
frame
stairs
cylinder
wheelchair
Prior art date
Application number
PCT/HU1986/000057
Other languages
German (de)
English (en)
Inventor
József DUDÁS
Original Assignee
Comporgan Rendszerház K.V.
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 Comporgan Rendszerház K.V. filed Critical Comporgan Rendszerház K.V.
Priority to PCT/HU1986/000057 priority Critical patent/WO1988003012A1/fr
Publication of WO1988003012A1 publication Critical patent/WO1988003012A1/fr

Links

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
    • A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
    • A61G5/061—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps for climbing stairs
    • 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
    • A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
    • A61G5/068—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps with extensible supports pushing upwards, e.g. telescopic legs
    • 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
    • A61G5/1051—Arrangements for 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
    • A61G5/045—Rear wheel drive
    • 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
    • A61G5/1021—Wheelchairs having brakes engaging specific brake elements
    • A61G5/1027—Hub elements, e.g. drums

Definitions

  • the invention relates to a wheelchair for the physically disabled, which is particularly suitable for traffic on stairs.
  • Various wheelchairs are used to transport the physically handicapped. These generally have a controlled front wheel and a driven rear wheel pair, and a frame provided with a seat, the drive being carried out manually or with the aid of a motor.
  • Such wheelchairs have the disadvantage that the transport of the physically handicapped on stairs or other routes that have a stair-like height difference is only possible with the assistance of auxiliary personnel in an arduous manner and with significant exertion of force by the personnel. In addition, there is a risk of jarring and getting out when transported on stairs falling of the physically handicapped.
  • a disadvantage of such a mobile auxiliary frame is that it is extremely complex and the physically disabled person cannot use it on stairs without auxiliary personnel. Furthermore, the locking device, which secures the fastening of the wheelchair to the mobile auxiliary frame and its removal therefrom, is extremely sensitive to impurities, as a result of which its reliability is significantly impaired.
  • the aim of the invention is to eliminate the above-mentioned disadvantages, ie in the development of a wheelchair, by means of which physically handicapped persons can operate independently and safely on stairs without any additional auxiliary structures and without auxiliary personnel, with relatively little effort.
  • a known wheelchair was assumed, the frame of which is provided with a controlled (steered) front wheel and a driven pair of rear wheels.
  • wheel lifting and supporting units are formed by hydraulically operated working cylinders on one side, in which the end face of the piston opposite the piston rod is loaded by a compression spring.
  • the additional driver unit can preferably for
  • Example can be formed by a one-sided actuable hydraulic working cylinder, which can be tilted to the frame in the direction of the movement of the wheelchair, the piston rod of which is provided with a self-adjusting foot, and a further hydraulic tilting working cylinder connects to the end of the cylinder.
  • the additional driver unit is designed as a driver arm with a ratchet, which interacts with the axis of the driven impeller.
  • Pigur 1 to 5 a side view of an embodiment of the wheelchair according to the invention, specifically in FIGS. 1 to 3 in a position during the upward movement of the stairs and in FIGS. 4 and 5 in a position during the downward movement of the stairs
  • FIG. 6 a schematic side view of a section, specifically the braking device of the solution illustrated in FIGS. 1-5.
  • the wheelchair according to the invention has a collapsible frame 1 which is known per se and to which a seat 2 is attached.
  • the frame 1 is provided with a controllable (steered) front wheel 3 and a driven rear wheel pair 4.
  • a fork 5 of the front wheel 3 continues in a rod 6 which is mounted in a tubular sleeve 7 and can be rotated together with a control lever 8 about an axis of rotation 9.
  • the rear wheel pair 4 is driven by a chain drive known per se; which consists of a small sprocket 11, a chain 12, and a large sprocket 14 coupled to the axle 10 of the rear wheel pair 4, the large sprocket 14 being provided with a drive crank 13.
  • the wheelchair designed according to the invention is provided with a wheel lifting or supporting unit 15 fastened to the frame 1 behind the front wheel 3 and having a roller 16 in its lower part.
  • a further wheel lifting or supporting unit 17 is fastened to the frame 1 in the region of the rear wheel pair 4, which in turn has a self-adjusting foot 18 at its lower end.
  • the wheelchair according to the invention is provided with a driver unit 19, with the aid of which the wheelchair can be moved forward discontinuously.
  • wheel lifting or supporting unit 17 can also be omitted if necessary, since its puncture can be carried out by the wheel lifting or supporting unit 20.
  • the wheel lifting and support units 15, 17, 20 in the present exemplary embodiment are designed as hydraulic working cylinders which can be actuated in one direction and which are connected to a central hydraulic feed unit 22, which is only marked in outline; during their hydraulic actuation, their piston rod is together with the foot or roller at the end - indentable.
  • a central hydraulic feed unit 22 which is only marked in outline; during their hydraulic actuation, their piston rod is together with the foot or roller at the end - indentable.
  • the driver unit 19 is provided in a manner similar to the wheel lifting or supporting unit 17 with a hydraulic working cylinder 26 with a compression spring that functions on one side, said cylinder being fastened to the frame 1 so as to be tiltable in the direction of movement about a bolt 27 arranged in its central region .
  • a self-adjusting foot 28 is connected to the end of the piston rod of the working cylinder 26.
  • the upper end of the cylinder of the working cylinder 26 is followed by a piston rod of a further hydraulic working cylinder 29 of this type.
  • the cylinder of this working cylinder 29 is rotatably mounted on a bracket 30 of the frame 1.
  • the working cylinders 26 and 29 are also in control connection with the feed unit 22.
  • FIG. 6 A proposed braking device of the wheelchair designed according to the invention is illustrated in more detail in FIG. 6, which was identified overall with the reference symbol F.
  • the braking device F is provided with a drum 31 fastened on the axle 10, on the outer lateral surface of which a brake shoe 34, which is provided with a rod 33 that can be displaced between two parallel guides 32, is pressed by means of a spring 35.
  • the tapered extension of the rod 33 is articulated to a brake lever 36 (the base of which corresponds to the closed state of the brake has been marked with a strong line).
  • the lower end of the brake lever 36 is connected via a bolt 37 to a bracket 38 which is fastened to the frame 1.
  • the forward brake release position of the brake lever 36 is indicated by a thin dash-dotted line.
  • the working cylinder 26 of the driver unit 19 tilts forward about the bolt 27 and consequently also the frame 1. Since the wheel lifting or supporting unit 17 essentially supports the wheelchair on the floor, the vehicle forcibly moves forward and thus the front wheel 3 reaches the first step. (It should be noted here that the wheel lifting or support unit 20 has no function during the upward movement of the stairs.)
  • roller 16 is retracted by actuating the wheel lifting or supporting unit 15 against the compression spring 23, and the operations described above are then repeated cyclically until the landing is reached (FIG. 3).
  • the wheel lifting or supporting unit 17 and the driver unit 19 are not absolutely necessary.
  • the braking device F and the wheel lifting or. Support units 15, 20 analogously to the above, operated in opposite directions.
  • the front part of the wheelchair is supported by means of the roller 16 of the wheel lifting or supporting unit 15 and at the same time the hydraulic locking of the tubular sleeve 7 (FIG. 1), which is also a spring-loaded hydraulic actuator that can be actuated on one side, is released, as a result of which it lowers the front wheel 3 on the force of the compression spring 41 on the first step. Then the load on the front part of the wheelchair is transferred to the front wheel 3.
  • the roller 21 of the wheel lifting or supporting unit 20 is lowered onto the first step by releasing the lock.
  • the roller 21 supports the structure elastically (sprung) during the change in height of the rear wheel pair 4 and at the same time dampens their vibrations. This means that the rear wheel pair can be lowered onto the first step of the staircase almost without hindrance.
  • the brake lever 36 of the braking device F ie the controlled loosening of the braking device F
  • the operations explained above are to be repeated cyclically until the lower landing is reached. 5 and 6, the position of the front wheel 3 lowered to the stair step is indicated by a dash-dotted line.
  • the additional driver unit 19 can also be designed as illustrated in FIG. 2 with a thin dash-dotted line and identified by the reference number 19 '.
  • this embodiment which is essentially designed as a two-armed lever, a manually operated arm 42 and a hub 43 which cooperates with the end of the locking mechanism are provided, the latter being fastened, for example, to the axle of the rear wheel pair 4.
  • the arm 42 By actuating the arm 42, the physically disabled person can exert a significantly greater forward driving torque on the pair of rear wheels 4 when moving upward on an inclined path than with the manual drive crank 13.
  • there is also one A large number of other design variants of the driver unit are possible, but these are not dealt with in any more detail here, since these are obvious to a person skilled in the art when the invention is known.
  • wheel lifting and supporting units 15, 17 and 20 can also be designed as hydraulic working cylinders that function on both sides. Such a variant is also possible, in which the pistons of the wheel lifting or supporting units 15, 17 and 20 are not retracted by hydraulic actuation but by manual actuation.
  • the most important advantage of the solution according to the invention is that, with relatively little effort, such a reliable wheelchair, which virtually eliminates the risk of accidents and is gentle on the physically disabled, is proposed, by means of which the physically disabled can travel up and down stairs independently, without the use of auxiliary personnel.
  • An additional advantage of the invention is that the conventional wheelchairs can be converted relatively easily in the manner proposed.
  • the additional psychological advantage should also be pointed out, namely that the range of motion of the physically disabled can be significantly expanded when using the wheelchair according to the invention and at the same time the stress effect that the physically disabled in the conventional wheelchairs are exposed to when it is too can be excluded traffic comes up stairs.
  • the wheelchair designed according to the invention can be used on stairs of any type.
  • the relative angular position of the wheel lifting or support units 15, 17 and 20 to the horizontal main holder of the frame 1 in the present case and their relative position to the wheels are preferably adjustable, for example according to the different stair heights and the different widths of the stair steps.
  • the adjustment possibility corresponding to the body weight of the physically handicapped, or the exchange of pedals, must be taken into account. If necessary, the setting can be loosened, for example, by a known spring preloading device with screws.

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)
  • Handcart (AREA)

Abstract

Le bâti (1) du fauteuil roulant décrit comporte une roue avant (3) commandée et une paire de roues arrière (4) entraînées. L'invention consiste en ce qu'il est prévu dans la région de la roue avant (3) et de la paire de roues arrière (4) au moins un organe de levage de roue ou d'appui (15 ou 20). En outre, le fauteuil roulant est pourvu d'un organe poussoir (19, 19') pour le mouvement ascendant sur les marches.
PCT/HU1986/000057 1986-10-24 1986-10-24 Fauteuil roulant pour handicapes, permettant notamment de monter les escaliers WO1988003012A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/HU1986/000057 WO1988003012A1 (fr) 1986-10-24 1986-10-24 Fauteuil roulant pour handicapes, permettant notamment de monter les escaliers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/HU1986/000057 WO1988003012A1 (fr) 1986-10-24 1986-10-24 Fauteuil roulant pour handicapes, permettant notamment de monter les escaliers

Publications (1)

Publication Number Publication Date
WO1988003012A1 true WO1988003012A1 (fr) 1988-05-05

Family

ID=10980690

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU1986/000057 WO1988003012A1 (fr) 1986-10-24 1986-10-24 Fauteuil roulant pour handicapes, permettant notamment de monter les escaliers

Country Status (1)

Country Link
WO (1) WO1988003012A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002122A1 (fr) * 1996-07-17 1998-01-22 Deka Products Limited Partnership Mecanisme anti-basculement
KR100494444B1 (ko) * 2002-10-28 2005-06-13 형행신 다기능 휠체어
GB2478340A (en) * 2010-03-05 2011-09-07 Joona Ltd Hand-propelled vehicle with resiliently mounted further wheel for cushioning
EP2160316A4 (fr) * 2007-07-03 2012-01-25 Afikim Electric Vehicles Ltd Fffauteuil roulant électrique avec système de levage et de chargement intégré
TWI629052B (zh) * 2017-04-07 2018-07-11 楊忠一 爬梯裝置的爬梯方法
CN108904156A (zh) * 2018-05-29 2018-11-30 利辛县众善医药科技有限公司 一种智能康复用电动轮椅
WO2019138209A1 (fr) * 2018-01-15 2019-07-18 Roma Medical Aids Limited Appareil de levage pour un dispositif d'aide à la mobilité à roues, et dispositif d'aide à la mobilité à roues
EP3679912A3 (fr) * 2019-01-09 2020-07-22 Ammann, Gerda Fauteuil roulant permettant de surmonter les obstacles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269478A (en) * 1965-12-06 1966-08-30 Donald E Joslyn Stair climbing wheel chair
US3438641A (en) * 1966-03-31 1969-04-15 Bartholomew M Bradley Stair climbing wheelchair
US3593282A (en) * 1969-11-04 1971-07-13 Bell Telephone Labor Inc Character-error and burst-error correcting systems utilizing self-orthogonal convolution codes
GB1472072A (en) * 1973-07-27 1977-04-27 Umi Kk Electrically drivable wheelchair

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269478A (en) * 1965-12-06 1966-08-30 Donald E Joslyn Stair climbing wheel chair
US3438641A (en) * 1966-03-31 1969-04-15 Bartholomew M Bradley Stair climbing wheelchair
US3593282A (en) * 1969-11-04 1971-07-13 Bell Telephone Labor Inc Character-error and burst-error correcting systems utilizing self-orthogonal convolution codes
GB1472072A (en) * 1973-07-27 1977-04-27 Umi Kk Electrically drivable wheelchair

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002122A1 (fr) * 1996-07-17 1998-01-22 Deka Products Limited Partnership Mecanisme anti-basculement
JP2000514680A (ja) * 1996-07-17 2000-11-07 デカ・プロダクツ・リミテッド・パートナーシップ 転倒防止機構
KR100494444B1 (ko) * 2002-10-28 2005-06-13 형행신 다기능 휠체어
EP2160316A4 (fr) * 2007-07-03 2012-01-25 Afikim Electric Vehicles Ltd Fffauteuil roulant électrique avec système de levage et de chargement intégré
AU2008272484B2 (en) * 2007-07-03 2013-10-03 Afikim Electric Vehicles Ltd. Scooter with an integral lifting and loading system
US8641359B2 (en) 2007-07-03 2014-02-04 Afikim Electric Vehicles Ltd. Scooter with an integral lifting and loading system
GB2478340A (en) * 2010-03-05 2011-09-07 Joona Ltd Hand-propelled vehicle with resiliently mounted further wheel for cushioning
GB2478340B (en) * 2010-03-05 2012-11-14 Joona Ltd Hand-propelled vehicle
TWI629052B (zh) * 2017-04-07 2018-07-11 楊忠一 爬梯裝置的爬梯方法
WO2019138209A1 (fr) * 2018-01-15 2019-07-18 Roma Medical Aids Limited Appareil de levage pour un dispositif d'aide à la mobilité à roues, et dispositif d'aide à la mobilité à roues
CN108904156A (zh) * 2018-05-29 2018-11-30 利辛县众善医药科技有限公司 一种智能康复用电动轮椅
EP3679912A3 (fr) * 2019-01-09 2020-07-22 Ammann, Gerda Fauteuil roulant permettant de surmonter les obstacles

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