EP3412267A1 - Anordnung zur translation der räder eines motorisierten behindertenrollstuhls - Google Patents

Anordnung zur translation der räder eines motorisierten behindertenrollstuhls Download PDF

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Publication number
EP3412267A1
EP3412267A1 EP18290058.9A EP18290058A EP3412267A1 EP 3412267 A1 EP3412267 A1 EP 3412267A1 EP 18290058 A EP18290058 A EP 18290058A EP 3412267 A1 EP3412267 A1 EP 3412267A1
Authority
EP
European Patent Office
Prior art keywords
guide
slider
slide
wheel
piece
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Withdrawn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
EP18290058.9A
Other languages
English (en)
French (fr)
Inventor
Claude Bertrand
Pierre PEILLEX
Jean Bernasconi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3412267A1 publication Critical patent/EP3412267A1/de
Withdrawn legal-status Critical Current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
    • 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
    • A61G5/12—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

Definitions

  • the present invention relates to an assembly in the form of a wheelchair kit with manual drive for the handicapped, facilitating the lateral transfer of the user to and from the chair.
  • Hand-operated wheelchairs have large diameter rear wheels to allow manual training by the circular handrails provided by the wheels. These wheels form an obstacle to the lateral transfer of the handicapped person between the chair seat and another adjacent seat.
  • JP2009 178492 describe wheelchairs in which the actuation and unlocking of the wheels between these two positions are performed by complicated drive mechanisms. otherwise JP2009 178492 describes a telescopic sliding device less bulky in the longitudinal direction, but complex and requiring operation by levers.
  • Requirement FR 15/01566 describes a set that solves these problems, which can be in the form of a kit easily mountable on most existing manual wheelchairs, the elongated slide length being such that it can, in the rear or back position , out cantilever of the rear end of the guide which does not exceed, or little, the rear end of the chair, the slide remaining held in the guide by its front part.
  • the present invention proposes to overcome these disadvantages and provide such a set of great lightness, and very easy to mount on most existing wheelchairs.
  • Another object of the invention is to provide a simplified assembly that can be mounted on wheelchairs disabled can not operate the wheels themselves, and can be easily completed for the disabled who can do it.
  • the invention relates to a set or kit that can be mounted on a wheelchair with manual drive for disabled motor, having a frame or frame, a seat, wheels or casters anterior and large-diameter rear wheels with manual drive, susceptible to be immobilized by wheel brakes, said assembly comprising two telescopic elements, namely a substantially horizontal guide and a telescopic wheel slider having, towards its rear end, a portion on which can be mounted the rear wheel, and movable along the guide between a normal advanced rolling position and a retracted position, exceeding at the rear of the guide, in which the rear wheel no longer overflows on the side of the seat, optionally a manually actuable device for immobilizing the slide in said forward position and in said retracted position, characterized in that the guide comprises a fixed tube preferably of circular section, the slider comprising an elongated element, preferably in the form of a tube or rod of complementary section guided in the fixed and secured guide, at the rear, of said portion on which the rear wheel can be mounted, the anterior
  • the slider carries a usual wheel brake disposed at its forward end.
  • the slide carries, for example on said portion on which can be mounted the rear wheel, an elongate piece in the form of tube or rod, parallel to said slide, and guided in a short guide piece close to said part and secured to the fixed guide, said elongate member having, towards its front end, said wheel brake.
  • the slide carries, towards its front end, a piece emerging laterally or, preferably upwardly, from the guide, the latter having an elongated passage, for example a slot, allowing the displacement of said piece when movement of the slider, said piece carrying the wheel brake.
  • the rear end of the guide does not exceed, or little, the rear end of the chair.
  • the guide, the slide, the elongated piece and the short guide are formed of circular section tubes.
  • the tubular guide may carry two fastening devices, for example with jaws, allowing quick mounting by clamping on a tubular element of the wheelchair.
  • the short guide piece can advantageously be fixed on the slide by a connection that can be fixed by clamping on the tubular guide.
  • said immobilizing device comprises a pawl, preferably vertical, presented by said elongated piece, preferably at its anterior end and depressions of immobilization, for example holes, preferably presented by the guide, said pawl being pushed elastically or by gravity to be able to snap into the depression or the hole, when the slide is in the advanced or retracted position while being able to be operated manually by the user to release the hole, a holding device, preferably magnetic, being disposed at the hole to maintain the pawl in the released position, and release the pawl when the slide away, so that the ratchet is found pushed elastically in the direction of the guide, and automatically enters the depression encountered during the movement of the slide.
  • the pawl may consist of a simple rod provided with an operating knob and guided in translation in two vertically aligned holes of said elongate member.
  • said magnets are carried by a nonmagnetic elongate plate or bar fixed relative to the guide, for example by being integral with the fasteners of the guide on the frame.
  • the pawl may advantageously carry a small ferromagnetic tab or washer that can be pressed against the magnet.
  • this washer may also serve as a fulcrum for a coil spring surrounding the pawl between the washer and the ratchet exit hole in the elongate member.
  • the guide is a strong cylindrical tube, for example stainless steel and it is preferred that the slide is also formed of such a tube of smaller diameter, sliding with a game, in the guide.
  • the elongated element is a strong cylindrical tube, for example made of stainless steel, the short guide section being a tube of larger diameter, or a tubular passage formed by two flanges screwed together and connecting the guide and said section.
  • the tube forming the slider is of the same outer diameter as the tubes forming the frame of the chair, and it is preferably the same for the tube forming the elongate member.
  • these tubes have a diameter of 25 mm and a thickness of 1.5 mm.
  • the slider is then preferably a tube of 20 mm in diameter.
  • the slider preferably tubular, may comprise a first sliding portion in the guide, and a posterior part laterally spaced so as to present the portion supporting the wheel, substantially in the vertical plane of the wheel support. origin of the chair, the guide then being preferably in the lateral plane of the chair frame. so that the assembly according to the invention does not increase the lateral size of the chair.
  • the invention also relates to a kit characterized in that it comprises two assemblies according to the invention, and optionally an elongated transverse piece, such as a rod, crosses or axis, preferably telescopic for easy assembly, bringing together the two rear wheels of the chair.
  • an elongated transverse piece such as a rod, crosses or axis, preferably telescopic for easy assembly, bringing together the two rear wheels of the chair.
  • the assembly shown is intended to be mounted on one side of a conventional tubular frame of a wheelchair with large rear wheels manually operated by circular handrail for disabled, a similar assembly being mounted on the other side.
  • a guide comprising a horizontal tube 1 stainless steel outer diameter of 25 mm and wall thickness of 2 mm.
  • This guide can be mounted on a horizontal tubular beam of the frame of a wheelchair by two sets of jaws customary (not shown). Inside the guide 1 can slide a tubular slider 2 of stainless steel, diameter 20 mm, whose rear end emerges from the guide when it is pressed into it, in the advanced position.
  • the slider 2 At its front end the slider 2 has a vertical slot in which is housed a roller 3, for example a ball bearing diameter 20 mm, whose horizontal axis 4 is mounted in lateral holes of the tube 2 arranged so that the roller exceeds the lower geometric generator of the cylinder forming the tube 2, so that the roller can roll on the bottom of the guide 1 without the slide rubs on the bottom of the guide 1.
  • a roller 3 for example a ball bearing diameter 20 mm, whose horizontal axis 4 is mounted in lateral holes of the tube 2 arranged so that the roller exceeds the lower geometric generator of the cylinder forming the tube 2, so that the roller can roll on the bottom of the guide 1 without the slide rubs on the bottom of the guide 1.
  • the guide 1 At its rear end the guide 1 has an upper notch 5.
  • a lower bearing of a portion 10 On the rear end of the slider 2 is fixed vertically, by clamping or screwing, a lower bearing of a portion 10 having, upwards, a hole 11 allowing the usual assembly of the axis of a large rear wheel chair rolling.
  • the part 10 Above the hole 11 the part 10 is extended by receiving, by screwing or clamping in a bearing surface 12, a tubular element 13, for example made of stainless steel of the same diameter as the tube 1, and extending forwards , parallel to the slider 2.
  • the tubular element 13 is further guided through a short cylindrical section 14 presented by a guide piece 15, clamped on the guide 1, and whose inner diameter is 27 mm.
  • the elongate member 13 carries a conventional wheelchair wheel brake 16 secured by clamping.
  • the rear part 10 may be a part, preferably of synthetic material, for example PVC, preferably rounded at the rear, and having two parallel holes, in which can penetrate the rear ends of the parts 2 and 13 , to be fixed, and a third hole 11.
  • this part may be composed of two half-pieces, preferably identical, provided with nut passages, and coming to apply against one the other, in the vertical geometric plane of the tubular parts 2 and 13, and to be clamped there like jaws immobilizing the two ends of tubular parts 2 and 13 in semi-cylindrical hollows facing each other.
  • a cylindrical piece has been introduced and fixed with a vertical passage in which a pawl rod 18 having an operating knob 19 can be slid.
  • a pawl rod 18 having an operating knob 19 On the pawl rod is fixed to a certain distance from its rounded lower end, a ferromagnetic washer 20 on which supports a helical return spring 21 whose upper end rests against the lower surface of the part 17.
  • brackets 22, 23 On the guide 1, are mounted, by clamping, two nonmagnetic brackets 22, 23, whose horizontal faces have, downwards, two small flat magnets 24, 25, not interfering with the vertical sliding of the pawl 18 but intercept a side of the washer 20, when the pawl is pulled up.
  • the brackets 22, 23 are joined by a horizontal sliding plate 26 provided with two indexing holes 27, 28 whose spacing is equal to the stroke of the slider 2 between its advanced and retracted positions.
  • the plate 26 may be omitted, the two holes then being directly practical in the upper wall of the guide 1, opposite the brackets.
  • the operation is as follows.
  • the disabled user sitting on his chair, can then pull the pawl 18 (or the two pawls, if one assembly has been mounted on each side), so that the washer 20 comes into contact with the magnet 24, which holds the ratchet in the raised position.
  • the user then turns the wheel rearward, which slides the slider 2 backwards and apart the washer of the magnet, so that the spring 21 pushes the ratchet down, or it slides on the piece 26 until it meets the rear hole 22, into which it enters and immobilizes the slide in the rear retracted position, in which position the wheel is moved away from the lateral edge of the chair seat.
  • the user pulls the ratchet upward, and proceeds in the opposite direction.
  • the pawl 18 is vertical, it is also possible to omit the spring 21, the pawl being biased downwards by simple gravitation.
  • the device may not include indexing means in the advanced and remote positions, the stop being provided by a caregiver, who actuates the wheel brakes.
  • the guide 1 has, at its upper part, an elongate slot 30 whose length is greater than or equal to the stroke of the slider 2.
  • the latter has a piece 31 emerging upwards, through the slot 30, on which is fixed a wheel brake 16.
  • the piece 31 also carries a vertical tube 32 offset laterally relative to the guide 1, in which the pawl 18 slides.
  • the magnets 24 and 25 are directly fixed under the guide 1.
  • the sliding plate 26, with its indexing holes is supported by the two jaw attachment members 33, 34, which allow to fix the assembly according to the invention on a beam 35 of the frame of the chair, thanks to its low height.

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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)
EP18290058.9A 2017-06-06 2018-05-31 Anordnung zur translation der räder eines motorisierten behindertenrollstuhls Withdrawn EP3412267A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1700593A FR3066910B1 (fr) 2017-06-06 2017-06-06 Ensemble pour translation de roues de fauteuil roulant pour handicape moteur

Publications (1)

Publication Number Publication Date
EP3412267A1 true EP3412267A1 (de) 2018-12-12

Family

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Family Applications (1)

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EP18290058.9A Withdrawn EP3412267A1 (de) 2017-06-06 2018-05-31 Anordnung zur translation der räder eines motorisierten behindertenrollstuhls

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EP (1) EP3412267A1 (de)
FR (1) FR3066910B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021234259A1 (fr) 2020-05-19 2021-11-25 Claude Bertrand Ensemble pour translation de roues de fauteuil roulant pour handicapé moteur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11226057A (ja) * 1998-02-12 1999-08-24 Gentarou Ootani 肘掛と車輪を後退可能にした車椅子
US20040080137A1 (en) * 2002-10-28 2004-04-29 Kuntz James P. Wheelchair access system
JP2009178492A (ja) * 2008-02-01 2009-08-13 Univ Osaka Sangyo 車椅子
EP3120818A1 (de) * 2015-07-20 2017-01-25 Claude Bertrand Anordnung oder kit für einen behindertenrollstuhl

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11226057A (ja) * 1998-02-12 1999-08-24 Gentarou Ootani 肘掛と車輪を後退可能にした車椅子
US20040080137A1 (en) * 2002-10-28 2004-04-29 Kuntz James P. Wheelchair access system
JP2009178492A (ja) * 2008-02-01 2009-08-13 Univ Osaka Sangyo 車椅子
EP3120818A1 (de) * 2015-07-20 2017-01-25 Claude Bertrand Anordnung oder kit für einen behindertenrollstuhl

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021234259A1 (fr) 2020-05-19 2021-11-25 Claude Bertrand Ensemble pour translation de roues de fauteuil roulant pour handicapé moteur
FR3110387A1 (fr) 2020-05-19 2021-11-26 Claude Bertrand Ensemble pour translation de roues de fauteuil roulant pour handicapé moteur

Also Published As

Publication number Publication date
FR3066910B1 (fr) 2019-06-28
FR3066910A1 (fr) 2018-12-07

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