EP0347492B1 - Faltbarer Rollstuhl - Google Patents

Faltbarer Rollstuhl Download PDF

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Publication number
EP0347492B1
EP0347492B1 EP88118137A EP88118137A EP0347492B1 EP 0347492 B1 EP0347492 B1 EP 0347492B1 EP 88118137 A EP88118137 A EP 88118137A EP 88118137 A EP88118137 A EP 88118137A EP 0347492 B1 EP0347492 B1 EP 0347492B1
Authority
EP
European Patent Office
Prior art keywords
seat
frame
tubes
wheelchair
struts
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.)
Expired - Lifetime
Application number
EP88118137A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0347492A1 (de
Inventor
Rainer Küschall
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.)
Kueschall Design AG
Original Assignee
Kueschall Design AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4231459&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0347492(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kueschall Design AG filed Critical Kueschall Design AG
Priority to AT88118137T priority Critical patent/ATE83645T1/de
Publication of EP0347492A1 publication Critical patent/EP0347492A1/de
Application granted granted Critical
Publication of EP0347492B1 publication Critical patent/EP0347492B1/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
    • A61G5/0825—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 comprising a scissor-type frame, e.g. having pivoting cross bars for enabling folding
    • 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
    • A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for feet

Definitions

  • the invention relates to a foldable wheelchair with two side frames which carry the drive and running wheels and are connected to one another by two cross braces lying in planes transverse to the direction of travel, which are rotatably connected at the crossing point and can be moved like scissors about their axis of rotation, the braces are articulated to the frame at the lower ends and carry seat tubes of a seat lying at the upper ends in the direction of travel, which come to rest on snap-in parts provided on the frame when the wheelchair is unfolded, and each strut above the crossing point by means of a rotating bracket with the adjacent frame is articulated.
  • the seat is designed so that it is not only slidable but also tiltable.
  • an elaborate support body is provided which forms the seat with a seat body. So that the seat can be properly positioned, the support body has recesses in which the struts consisting of pipe sections cross the support body.
  • the seat is designed so that it can be used in practically any foldable or collapsible wheelchair, since in principle it is only a matter of choosing the recesses and the suspension bracket provided in addition to them so that they can interact with the struts or frame.
  • DE-C-37 08 302 does not specify anything about special features of this known wheelchair which would help it to achieve sufficient stability while at the same time saving weight.
  • the seat can be fixed there after the desired position has been reached so that it assumes a fixed position that is immovable with respect to the support frame, it can be assumed that the seat is attached to the support frame by means of screwing and also serves the wheelchair to fix in its unfolded state. This is complex, because it requires screwing means for the fixation, and also cumbersome to use.
  • the object of the invention is to design a foldable wheelchair of the type mentioned in such a way that the crossed struts can be connected to the frame firmly and without play in a simple manner and at the same time as saving weight, so that the wheelchair is then completely stable in itself .
  • this object is achieved in that the snap-in parts, which are fastened to the frame connected via a backrest, have elastically deformable receiving pieces due to the seat tubes snapping when they unfold.
  • the wheelchair according to the invention has a special snap-in connection between the seat tubes and the snap-in parts attached to the frame.
  • the latched seat tubes are not only supported vertically, but also fixed to the frame via a side-stable, very firm and practically play-free connection.
  • the fixed connection is achieved by a specially calculated sequence of movements of the seat tubes over the pivoting link point as well as receiving pieces constructed precisely for the radius of this movement and their choice of materials, which ensure the correct elastic deformation of the receiving pieces when the seat tubes snap into place allows.
  • Fig. 1 shows a perspective view of a foldable wheelchair with two side frames 10a, 10b, which each consist of steel tube and each represent a torsionally rigid construction. At the rear end, a handle tube 12a or 12b extends upward from each frame.
  • the frames 10a, 10b carry drive wheels 14a, 14b and wheels 16a, 16b.
  • the frames 10a, 10b each form a frame rectangle, which is stiffened at the rear end by a plate 18a and 18b. Openings 20a and 20b are provided in the plates 18a, 18b for fastening the axis of the associated drive wheel 14a, 14b at different points, for example depending on the body size of the wheelchair user, the desired seat inclination, etc.
  • the frame legs of the frame rectangle run obliquely and lead to a foot platform 22, which is designed as a bracket, which is articulated on the frame 10b and can be snapped onto the other frame 10a, as can be seen easily in FIGS. 1 and 2.
  • the two frames 10a, 10b are connected by two crossed struts 24a, 24b lying in planes transverse to the direction of travel.
  • the struts 24a, 24b are rotatably connected at their crossing point and can be moved like scissors about their axis of rotation 26, in which the crossing point lies.
  • the struts 24a, 24b are hinged to the frame 10b and 10a, respectively.
  • the struts 24a, 24b each have a seat tube 28a and 28b at their upper ends.
  • the seat tubes 28a, 28b are rigidly connected to the struts 24a, 24b, e.g. welded.
  • the struts and the seat tubes are also made of steel tube.
  • the seat tubes 28a, 28b extend parallel to the direction of travel, as can be seen easily from FIGS. 1 to 3.
  • Two snap-in parts 30a, 30b which have elastically deformable receiving pieces into which the seat tubes 28a, 28b can snap, are fastened to the upper horizontal legs of each square frame.
  • the snap-in parts are designed overall as elastically deformable receiving pieces.
  • Another embodiment would be to provide an elastically deformable receiving piece on a base that is connected to the frame tube. Fig.
  • FIG. 5 shows an enlarged view of a snap-in part formed with through bores 31 ', 31', which are aligned with the mounted snap-in part with a corresponding through hole in the frame, so that each snap-in part can be fastened to the frame by means of a screw.
  • the struts 24a, 24b each have at their lower ends a pivot tube 34a or 34b parallel to the seat tube 28a or 28b, which is rotatably attached to the associated frame 10a or 10b.
  • the rotatable fastening consists in the illustrated embodiment of two blocks 36, 37, which, like the snap-in parts, are fastened to the frame and have blind holes into which the ends of the articulation tube are inserted, as can be seen in FIG. 1 without any problems.
  • the articulation tube can also be a steel tube which, like the seat tube, is described above Way is connected to the associated strut.
  • the wheelchair is covered by fabrics B1 or B2 or B3 or the like, which form the backrest, the seat or a lower leg support. According to the illustration in FIGS.
  • each strut 24a, 24b above the crossing point is connected in an articulated manner to the adjacent frame 10a or 10b by a rotating bracket 40a, 40b.
  • the rotary tabs 40a, 40b are each rotatably fastened in a block 42a or 42b, which in turn is fastened to the associated frame 10a or 10b, e.g. B. also by means of an inserted screw like the snap-in parts 30a, 30b.
  • the fastening points of the blocks 42a, 42b on the frames 10a, 10b can be seen in FIG. 3.
  • the position of the articulation points of the rotating tabs that is to say their pivoting attachment points on the blocks 42a, 42b on the one hand and the struts 24a, 24b on the other hand, and the length of the rotating tabs are selected so that the seat tubes 28a, 28b move with them towards the latching parts 30a, 30b a certain radius course from above into the receiving pieces.
  • the course of the radius and individual phases of movement of the seat tubes are indicated in FIG. 5 with broken lines. This sequence of movements results when the crossed struts 24a, 24b are brought into the folded position (from left to right) as shown in FIG. 4.
  • Fig. 5 further shows that the cross section of the receiving pieces or snap-in parts 30a, 30b corresponds to that of the seat tubes 28a, 28b, but coordinated with an over-eccentric movement sequence of the seat tubes at the top is so wide that the seat tubes can be snapped into the receiving pieces with a temporary elastic deformation are.
  • the elastic deformation is indicated at the top right in FIG. 5 with dashed lines in the latching part 30a.
  • the seat cover B2 Since in the wheelchair described above the seat cover B2 is attached to the seat tubes 28a, 28b, the snap connection between the seat tubes and frame 10a, 10b is additionally secured by the weight of the wheelchair user.
  • the covering B2 is recessed in the area of the snap-in parts 30a, 30b (cf. FIG. 3), so that it does not hinder the snap-in of the seat tubes 28a, 28b into the snap-in parts.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Health & Medical Sciences (AREA)
  • Handcart (AREA)
  • Toys (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Joints Allowing Movement (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Special Chairs (AREA)
  • Motorcycle And Bicycle Frame (AREA)
EP88118137A 1988-06-18 1988-10-31 Faltbarer Rollstuhl Expired - Lifetime EP0347492B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88118137T ATE83645T1 (de) 1988-06-18 1988-10-31 Faltbarer rollstuhl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH02337/88A CH678486C1 (enrdf_load_stackoverflow) 1988-06-18 1988-06-18
CH2337/88 1988-06-18

Publications (2)

Publication Number Publication Date
EP0347492A1 EP0347492A1 (de) 1989-12-27
EP0347492B1 true EP0347492B1 (de) 1992-12-23

Family

ID=4231459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88118137A Expired - Lifetime EP0347492B1 (de) 1988-06-18 1988-10-31 Faltbarer Rollstuhl

Country Status (9)

Country Link
EP (1) EP0347492B1 (enrdf_load_stackoverflow)
JP (1) JP2950850B2 (enrdf_load_stackoverflow)
AT (1) ATE83645T1 (enrdf_load_stackoverflow)
AU (1) AU623401B2 (enrdf_load_stackoverflow)
CA (1) CA1311676C (enrdf_load_stackoverflow)
CH (1) CH678486C1 (enrdf_load_stackoverflow)
DE (1) DE3876984D1 (enrdf_load_stackoverflow)
ES (1) ES2037796T3 (enrdf_load_stackoverflow)
NZ (1) NZ229592A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106344290A (zh) * 2016-08-30 2017-01-25 中进医疗器材泰州有限公司 一种调节支板结构及具有该结构的轮椅
CN107260426A (zh) * 2017-07-24 2017-10-20 王东宇 一种改进型轮椅可拆扶手

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263728A (en) * 1991-08-05 1993-11-23 Invacare Corporation Low profile wheelchair
US5261682A (en) * 1992-08-25 1993-11-16 Chuang Ching Pao Collapsible recuperating walker
WO2004112674A2 (en) * 2003-06-20 2004-12-29 Invacare Limited Improvements in or relating to disability vehicles and fastening devices
RU2278454C1 (ru) * 2004-12-24 2006-06-20 Открытое акционерное общество "Научно-исследовательский институт газоразрядных приборов "Плазма" (ОАО "Плазма") Газовый лазер
US20110018221A1 (en) * 2009-07-27 2011-01-27 Benjamin A Anooshian Wheelchair having reversible seat rail support structure
JP6713168B2 (ja) * 2016-08-09 2020-06-24 株式会社スワニー 車椅子
CN108721829B (zh) * 2017-04-20 2021-02-26 纳比尔·拉劳尔 阻力训练用的折叠式运动椅

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927631A (en) * 1956-04-10 1960-03-08 Andersson Torsten Sigfr Anders Folding wheel chair
FR1186175A (fr) * 1956-12-27 1959-08-17 Rhone Poulenc Sa Nouveaux dérivés nu-pipéraziniques substitués de la cyano-3 phénothiazine et leur préparation
DE8222991U1 (de) * 1982-08-14 1983-02-24 Meyra - Krankenfahrzeugfabrik Wilhelm Meyer GmbH & Co. KG, 4973 Vlotho Rollstuhl
FR2563993A1 (fr) * 1984-05-11 1985-11-15 Quadra Wheelchairs Inc Fauteuil roulant repliable et rabattable
DE8614849U1 (de) * 1986-06-02 1986-08-14 Bachmann, Friedbert, 7520 Bruchsal Rollstuhl
DE3708302C1 (en) * 1987-03-14 1988-03-31 Klimt Hans Ulrich Wheelchair

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106344290A (zh) * 2016-08-30 2017-01-25 中进医疗器材泰州有限公司 一种调节支板结构及具有该结构的轮椅
CN106344290B (zh) * 2016-08-30 2017-12-12 中进医疗器材泰州有限公司 一种调节支板结构及具有该结构的轮椅
CN107260426A (zh) * 2017-07-24 2017-10-20 王东宇 一种改进型轮椅可拆扶手

Also Published As

Publication number Publication date
EP0347492A1 (de) 1989-12-27
ATE83645T1 (de) 1993-01-15
JP2950850B2 (ja) 1999-09-20
NZ229592A (en) 1991-02-26
CH678486A5 (enrdf_load_stackoverflow) 1991-09-30
AU623401B2 (en) 1992-05-14
CA1311676C (en) 1992-12-22
AU3596689A (en) 1990-01-18
ES2037796T3 (es) 1993-07-01
DE3876984D1 (de) 1993-02-04
CH678486C1 (enrdf_load_stackoverflow) 2000-11-30
JPH0246845A (ja) 1990-02-16

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