EP0201423A1 - Faltbarer Rollstuhl mit Mitteln zur schnellen Entriegelung - Google Patents

Faltbarer Rollstuhl mit Mitteln zur schnellen Entriegelung Download PDF

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Publication number
EP0201423A1
EP0201423A1 EP86400968A EP86400968A EP0201423A1 EP 0201423 A1 EP0201423 A1 EP 0201423A1 EP 86400968 A EP86400968 A EP 86400968A EP 86400968 A EP86400968 A EP 86400968A EP 0201423 A1 EP0201423 A1 EP 0201423A1
Authority
EP
European Patent Office
Prior art keywords
bar
slide
chair
rod
holding
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.)
Granted
Application number
EP86400968A
Other languages
English (en)
French (fr)
Other versions
EP0201423B1 (de
Inventor
Jean-Jacques Emile L. Chabrol
Jean-Pierre François M. Lambert
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.)
COMPOSITES AQUITAINE SA
POIRIER ETS
Poirier Ets SA
Original Assignee
COMPOSITES AQUITAINE SA
POIRIER ETS
Poirier Ets SA
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 COMPOSITES AQUITAINE SA, POIRIER ETS, Poirier Ets SA filed Critical COMPOSITES AQUITAINE SA
Priority to AT86400968T priority Critical patent/ATE56613T1/de
Publication of EP0201423A1 publication Critical patent/EP0201423A1/de
Application granted granted Critical
Publication of EP0201423B1 publication Critical patent/EP0201423B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • 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
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
    • A61G5/0816—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair
    • 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
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0891—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable having rigid supports, e.g. seat or back supports which retain their shape after folding of the wheelchair
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32426—Plural distinct positions
    • Y10T403/32442—At least one discrete position
    • Y10T403/32451—Step-by-step adjustment
    • Y10T403/32459—Retainer extends through aligned recesses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/60—Biased catch or latch
    • Y10T403/602—Biased catch or latch by separate spring
    • Y10T403/604—Radially sliding catch

Definitions

  • the present invention relates to a foldable armchair, in particular an armchair for the disabled, which comprises rapid unlocking means.
  • a foldable chair comprising means for holding the chair in the unfolded position, which are foldable, means for locking in the unfolded position of these holding means, which comprise a bar; a slide mounted to slide - on said bar and coupled to said holding means so as to prevent the folding of these holding means when it occupies an extreme position along the bar, and to authorize this folding when it leaves this extreme position and slides along the bar, means for locking said slide in said extreme position, and corresponding unlocking means.
  • the means for blocking the slide F can comprise a push button which penetrates into openings made in the bar C.
  • the means for unlocking the slide they are not specified.
  • the object of the invention is to provide a foldable chair of the type described above, which can be very easily unlocked for its folding.
  • said unlocking means comprise a rod mounted mobile on the chair so as to be able to be brought into a position of cooperation with said locking means for unlocking said slide.
  • said bar is hollow, said rod being disposed inside the bar so as to be able to slide longitudinally.
  • said slide blocking means comprise an erasable lug carried by the slide and capable of projecting inside the bar through an opening arranged in line with said extreme position of the slide, the rod having an end arranged for push said lug out of the bar when it is moved along the bar.
  • said rod is biased elastically in a direction opposite to said slide blocking means and is extended, at its end opposite to said blocking means, outside the bar by a pusher.
  • the chair comprises two sides
  • said means for holding the chair in the unfolded position comprise two connecting elements distant from each other by which said sides are connected to each other, each element of connection comprising two portions articulated relative to each other at a first common end, each portion being moreover connected in an articulated manner on one of said sides by its other end, said bar extending between said connecting elements and being hingedly connected to said common ends of the aforementioned portions, said slider being coupled to one of said connecting elements by means of two coupling elements which are each articulated by one end on said slider and by another end at l 'one of the points of articulation of said connecting element on the sides of the chair.
  • said bar extends longitudinally relative to the chair. the end of said rod opposite to said locking means being turned towards the front of the fault
  • the chair shown in the figures comprises two sidewalls 1, 2, parallel, on each of which are attached a rear wheel of large diameter 3.4 and a front wheel of small diameter 5.6.
  • a "handrail" 7,8 is attached to each of the two rear wheels 3, 4.
  • the vertical direction will be defined as being that perpendicular to the bearing plane of the wheels of the chair on the ground.
  • Each flank 1,2 carries, at the front and at the rear and on the inside of the chair situated between the two flanks, a yoke 26, 27 and 28, 29 receiving a vertical axis 30, 31 and 32,33.
  • the chair is foldable and has means for holding in the unfolded position which include. a front connecting element 9 and a rear connecting element 10 each consisting of two portions 11, 12 and 13, 14.
  • the chair also comprises a bar 15 arranged in the median longitudinal plane of the chair, parallel to the sides 1,2.
  • This bar carries in particular at each end a double yoke 16,17 each supporting two vertical axes 18, 19 and 20, 21.
  • the two axes of each double yoke 16, 17 are arranged in a common plane perpendicular to the bar 15.
  • a slide 22 On the bar 15 is slidably mounted a slide 22 which itself carries a double yoke 23 comprising two vertical aves 24, 25. These axes are. arranged in a common plane perpendicular to the bar 15.
  • the two portions 11, 12 of the front connecting element 9 are respectively articulated, on the one hand on the axis 30, 32 of the adjacent flank 1,2 and on the other hand on the double front yoke 16 of the bar 15 , more precisely on the axis 18.19.
  • the slider 22 is coupled to the rear connecting element 10 by means of two coupling elements 34, 35 which are respectively articulated, on the one hand on the axis 24.25 of the double yoke 23 of the slider 22 and d on the other hand on the axis 31, 33 of the adjacent flank 1,2.
  • the sides 1,2, liaiso.n elements 9, 10 and the coupling elements 34,35 are, in this embodiment, rigid polygons which extend in vertical planes.
  • the slider 22 occupies an extreme rear position along the bar 15 in which it is immobilized by means of locking means described below.
  • the connecting element 10 then forms with the two coupling elements 34, 35 a non-deformable triangle keeping the two sides 1.2 of the chair separated from one another.
  • the two portions 11, 12 and 13,14 of each connecting element extend in the extension of one another, perpendicular to the sides 1,2.
  • a strap 36 is fixed by its two ends respectively to the portion 11 and to the portion 12 of the connecting element 9, in the vicinity of the bar 15, and makes it possible to pull the bar, which is directed towards the before, in order to unfold the chair again.
  • the blocking means of the slide 22 will be specified with reference to FIG. 3.
  • the bar 15 is a hollow cylindrical tube which has, at a determined location along the bar - namely at the right of said extreme rear position of the slide 22 - an opening 42 and, near its rear end, two opposite openings 43, 44.
  • Le_coulisseau 22 comprises a cylindrical sleeve 45 which carries said double yoke 23 not visible on this fiqure, as well as a tubular extension 40 extending vertically downwards and opening inside the slide 22 by an opening 41 of a diameter .meter smaller than the inside diameter of said tubular extension 40.
  • a cylindrical lug 46 is housed in the tubular extension 40 of the slide 22. It has a shoulder 47 in its median part and a rounded end 48 penetrating inside the conllisseau 22.
  • a helical spring 49 is threaded on the other end 50 of the lug 46.
  • the slide 22 thus equipped is fitted on the bar 15, the lug 46 being, to do this, pushes outwards from the conlisseau 22.
  • the slide 22 is located at the opening 42 of the bar 15, the lug 46 plunges inside this opening: the slide is then blocked.
  • the double front yoke 16 of the bar 15 is hollow and extended transversely by a tubular part 52.
  • This tubular part 52 has a bottom 53 which has a central opening 54.
  • the double front yoke 16 is fitted by its tubular part 52 in the end before the bar 15 and it is held there for example by gluing.
  • the actual unlocking means comprise a rod 55 threaded over its entire length, which carries, near its rear end, an end piece 56.
  • This end piece 56 is cylindrical and ends, at its end directed towards the rear of the chair, by a frustoconical part 57.
  • the outside diameter of the end piece 56 is very slightly less than the inside diameter of the bar 15.
  • the end piece 56 is axially threaded so that it can be screwed onto the rod 55. It is locked in a axial position along the rod by means of a lock nut 58.
  • the rod 55 In the vicinity of its front end 61, the rod 55 is provided with a nut 59 locked in the axial position by a lock nut 60.
  • the rod 55 thus equipped is threaded into the bar 15 by the rear end of the latter cf. It crosses the bottom 53 of the double front yoke 16, while the nut 59 and its lock nut 60 abut against this bottom.
  • a helical spring 62 On the front end 61 of the rod 55 is threaded a helical spring 62, then a cap-shaped pusher 63 is screwed onto the rod 55.
  • the spring 62 therefore bears on the bottom 53 and exerts a push on the pusher 63 , that is to say on the rod 55, this thrust being directed towards the front of the chair.
  • the axial position of the endpiece 66 is adjusted so that the latter is flush, by its frustoconical part 57, with the lug 46.
  • Abutment means are preferably provided so that when the chair is unfolded, it is immobilized in its unfolded position ( Figure 1), and does not risk folding back in the opposite direction.
  • these abutment means comprise a tube 64 whose length is equal to the distance between the slide 22 - when it is blocked - and the rear end of the bar 15. This tube 64 externally covers the bar 15 and Therefore prevents the slide 22 from sliding further towards the rear of the bar 15, beyond its blocking position.
  • the double rear yoke 17 of the bar 15 comprises a transverse tubular portion 66 by which it is introduced into the bar 15.
  • the tube 64 and the double rear clevis 17 of the bar 15 are fixed to the latter by means of a bolt 65 transversely passing through the tube 64, the bar 15 and the tubular portion 66 of the double rear clevis 17.
  • the user of the chair can unlock it by exerting a simple pressure on the pusher 63, directed towards the rear.
  • the tip 57 ( Figure 3) then pushes back, through its frustoconical part 57 and then through its cylindrical part. the lug 46 inside the tubular extension 40 of the slide 22.
  • the user must exert a push on the sides 1,2 of the chair tending to bring them closer to each other.
  • This thrust on the sides 1, 2 tends to move the slide 22 forwards: the rounded end 48 of the lug 46 allows the latter to come out of the opening 42 of the bar 15.
  • the chair is in a partially folded position.
  • the knife 22 occupies a position 67 shown in phantom in FIG. 3.
  • slide blocking means are such that it is not necessary to reset them after having unlocked: a simple push to move the two flanks 1,2 of the chair apart causes a new blocking.
  • the rod 55 (FIG. 3) could, in a variant embodiment not shown, be controlled from the rear of the chair, and this, thanks to the symmetry of the locking means with respect to a plane perpendicular to the bar 15 and passing through the lug 46. It would suffice to turn all of the release means from the front to the rear, the rod extending into the bar from its rear end and the unblocking of the piston being caused by a push on the pusher, directed forwards.
  • the invention is not limited to an armchair in which the rod 55 for unlocking the slide is located in the bar 15; it also relates to all variants in which the rod 55 is mounted movably on the chair 1 in a different manner, this rod can in any case be brought into a position of cooperation with means for releasing the slide.

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)
  • Special Chairs (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Lock And Its Accessories (AREA)
EP86400968A 1985-05-06 1986-05-05 Faltbarer Rollstuhl mit Mitteln zur schnellen Entriegelung Expired - Lifetime EP0201423B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86400968T ATE56613T1 (de) 1985-05-06 1986-05-05 Faltbarer rollstuhl mit mitteln zur schnellen entriegelung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8506842 1985-05-06
FR8506842A FR2581299B1 (fr) 1985-05-06 1985-05-06 Dispositif pour verrouiller et deverrouiller un fauteuil pliable, notamment un fauteuil pour handicapes

Publications (2)

Publication Number Publication Date
EP0201423A1 true EP0201423A1 (de) 1986-11-12
EP0201423B1 EP0201423B1 (de) 1990-09-19

Family

ID=9318980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400968A Expired - Lifetime EP0201423B1 (de) 1985-05-06 1986-05-05 Faltbarer Rollstuhl mit Mitteln zur schnellen Entriegelung

Country Status (6)

Country Link
US (1) US4712830A (de)
EP (1) EP0201423B1 (de)
JP (1) JPS6257522A (de)
AT (1) ATE56613T1 (de)
DE (1) DE3674241D1 (de)
FR (1) FR2581299B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6572133B1 (en) * 2001-01-18 2003-06-03 Sunrise Medical Hhg, Inc. Folding mechanism for a wheelchair
CN107137185A (zh) * 2017-05-31 2017-09-08 常州高尔登科技有限公司 折叠轮椅车及其锁紧装置

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863181A (en) * 1988-05-31 1989-09-05 Howle Edward S Foldable wheelchair
DE3902424A1 (de) * 1989-01-27 1990-08-02 Uwe Kleinschmidt Rollstuhl fuer behinderte mit abnehmbaren scheibenraedern, radgabeln, fussteil, sitzschale und einer faltkinematik, die sich in horizontalen ebenen bewegt
US4971342A (en) * 1989-11-13 1990-11-20 Albert Dix Animal figure velocipede
US5078349A (en) * 1990-04-16 1992-01-07 Midmark Corporation Locking mechanism for an IV pole
US5352057A (en) * 1992-12-28 1994-10-04 Zody Charles R Adjustment tool for telescoping members
JP3311160B2 (ja) * 1994-08-19 2002-08-05 アップリカ▲葛▼西株式会社 乳母車の座席
JP3311163B2 (ja) * 1994-09-21 2002-08-05 アップリカ▲葛▼西株式会社 乳母車およびその座席のための座板の製造方法
US6164674A (en) * 1995-06-05 2000-12-26 Adorno/Rogers Technology, Inc. Adjustable wheelbase wheelchair
US6499762B1 (en) 1995-06-05 2002-12-31 Adorno/Rogers Technology, Inc. Frame support apparatus and coupling device for use with an ambulatory system and method of fabrication thereof
DE19733453A1 (de) 1997-08-02 1999-02-04 Jens Lueck Faltbarer Rollstuhl
NO311555B1 (no) * 2000-02-09 2001-12-10 Stefan Solberg Understell for elektrisk rullestol
US6394476B1 (en) 2000-08-10 2002-05-28 Invacare Corporation Wheelchair seat having adjustable telescoping assembly
US6467788B1 (en) * 2001-06-04 2002-10-22 Tianfu Li Tilt-in-place wheelchair having adjustable wheelbase width
EP1454606A1 (de) * 2003-03-07 2004-09-08 Vassilli s.r.l. Faltbarer Rollstuhl
US7607725B2 (en) * 2006-08-16 2009-10-27 Promen-Aid Innovations Ltd. Collapsible support structure
US7607724B2 (en) * 2006-08-16 2009-10-27 Promen-Aid Innovations Ltd. Collapsible support structure
JP5301342B2 (ja) * 2009-04-21 2013-09-25 アップリカ・チルドレンズプロダクツ株式会社 折畳式手押し車
US8496289B2 (en) * 2011-10-05 2013-07-30 Shin Fang Plastic Industrial Co., Ltd. Foldable frame structure
CN104703571A (zh) * 2012-07-31 2015-06-10 英维康国际责任有限公司 包含自锁定装置的可折叠轮椅架
EP3041446A4 (de) * 2013-09-06 2017-08-23 Alu Rehab As Klappmechanismus für einen klapprollstuhl, rückenlehne für rollstuhl und rollstuhl
JP6111405B2 (ja) * 2014-05-28 2017-04-12 オンウェー株式会社 折り畳みフレーム
CN104367019A (zh) * 2014-10-22 2015-02-25 天津市仟佰億家具有限公司 一种便于折叠收纳的座椅
DE102016109759A1 (de) 2016-05-02 2017-11-02 Otto Bock Mobility Solutions Gmbh Faltbare Mobilitätshilfe
IT202200025224A1 (it) * 2022-12-07 2024-06-07 Bellelli S R L Rimorchio pieghevole per biciclette
CN119606661B (zh) * 2024-12-16 2026-01-06 佛山达浩医疗科技有限公司 一种折叠式电动轮椅
US12370102B1 (en) 2024-12-16 2025-07-29 Foshan Dahao Medical Technology Co., Ltd. Foldable electric wheelchair

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE62842C (de) * G. LINDER in Weyer, Rheinland Stabspitzenverschlufs mit Vorrichtung zum Auslösen des aufgespannten Schirmes
US2592405A (en) * 1948-06-14 1952-04-08 Herbert A Everest Collapsible commode chair
US2896693A (en) * 1953-04-07 1959-07-28 Adam Wilhelm Lehr Foldable invalid or bath chair
US4026568A (en) * 1976-02-23 1977-05-31 Beverly Grant Rutledge Hallam Triple hinged folding T frame wheelchair
US4065180A (en) * 1977-01-05 1977-12-27 John Karay Leg-restraining device for geriatric chair
GB2125740A (en) * 1982-08-25 1984-03-14 Bencraft Ltd A collapsible wheelchair
WO1985001205A1 (fr) * 1983-09-15 1985-03-28 Composites Aquitaine Fauteuil d'infirmes a base de materiaux composites

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US1748426A (en) * 1927-10-10 1930-02-25 Pentland Moses Automobile safety attachment
US2639162A (en) * 1949-05-17 1953-05-19 Schon Leo Collapsible carriage
US3507528A (en) * 1965-02-16 1970-04-21 Westinghouse Electric Corp Locking device
US4390300A (en) * 1980-08-21 1983-06-28 Foster Edwin E Adjustable bicycle handlebar stem

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE62842C (de) * G. LINDER in Weyer, Rheinland Stabspitzenverschlufs mit Vorrichtung zum Auslösen des aufgespannten Schirmes
US2592405A (en) * 1948-06-14 1952-04-08 Herbert A Everest Collapsible commode chair
US2896693A (en) * 1953-04-07 1959-07-28 Adam Wilhelm Lehr Foldable invalid or bath chair
US4026568A (en) * 1976-02-23 1977-05-31 Beverly Grant Rutledge Hallam Triple hinged folding T frame wheelchair
US4065180A (en) * 1977-01-05 1977-12-27 John Karay Leg-restraining device for geriatric chair
GB2125740A (en) * 1982-08-25 1984-03-14 Bencraft Ltd A collapsible wheelchair
WO1985001205A1 (fr) * 1983-09-15 1985-03-28 Composites Aquitaine Fauteuil d'infirmes a base de materiaux composites

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6572133B1 (en) * 2001-01-18 2003-06-03 Sunrise Medical Hhg, Inc. Folding mechanism for a wheelchair
CN107137185A (zh) * 2017-05-31 2017-09-08 常州高尔登科技有限公司 折叠轮椅车及其锁紧装置

Also Published As

Publication number Publication date
EP0201423B1 (de) 1990-09-19
ATE56613T1 (de) 1990-10-15
US4712830A (en) 1987-12-15
DE3674241D1 (de) 1990-10-25
FR2581299A1 (fr) 1986-11-07
FR2581299B1 (fr) 1988-07-15
JPS6257522A (ja) 1987-03-13

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