EP1600134B1 - Aufrichtstuhl mit Aufrichtoperationsuntersetzung - Google Patents

Aufrichtstuhl mit Aufrichtoperationsuntersetzung Download PDF

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Publication number
EP1600134B1
EP1600134B1 EP05356092A EP05356092A EP1600134B1 EP 1600134 B1 EP1600134 B1 EP 1600134B1 EP 05356092 A EP05356092 A EP 05356092A EP 05356092 A EP05356092 A EP 05356092A EP 1600134 B1 EP1600134 B1 EP 1600134B1
Authority
EP
European Patent Office
Prior art keywords
quadrilateral
lever
pivot
handle
hand
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.)
Not-in-force
Application number
EP05356092A
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English (en)
French (fr)
Other versions
EP1600134A1 (de
Inventor
François Xavier Laffin
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.)
Lifestand International SA
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Lifestand International SA
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Filing date
Publication date
Application filed by Lifestand International SA filed Critical Lifestand International SA
Publication of EP1600134A1 publication Critical patent/EP1600134A1/de
Application granted granted Critical
Publication of EP1600134B1 publication Critical patent/EP1600134B1/de
Not-in-force 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
    • A61G5/14—Standing-up or sitting-down aids
    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00—Chairs and seats
    • Y10S297/04—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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00—Chairs and seats
    • Y10S297/10—Occupant-arising assist

Definitions

  • the present invention relates to wheelchairs used by disabled and disabled and it aims, independently, wheelchairs, folding or not, manual or electric propulsion.
  • the invention relates, more particularly, the chairs, called “verticalizers", which allow their user to occupy a sitting position or a standing position.
  • Such chairs as for example described in the FR 2 769 830 , comprise a frame supporting an articulated structure which comprises a seat, a footrest, a backrest, as well as two symmetrical lateral articulated systems ensuring a function of verticalization-lowering of the seat, the backrest and the footrest, in order to allow a wheelchair user to move from a sitting position to a standing position.
  • each lateral articulated system comprises a first deformable polygon or quadrilateral contributing to the support of the seat, composed of two bars, respectively upper and lower, hinged on an anterior part of the chassis and linked, towards their rear part, by a spacer.
  • Each lateral articulated system also comprises a second deformable polygon or quadrilateral contributing to the support of the footrest, and a backrest frame articulated on the first quadrilateral, opposite the second quadrilateral, via the workpiece. spacing at least.
  • Each articulated lateral system comprises, finally, a maneuvering assembly, interposed between the first quadrilateral and the chassis which comprises, on the one hand, a first lever articulated on the rear part of the chassis and on the end of a second lever of which the other end is articulated on the first quadrilateral, and a handle integral with the second lever.
  • the operating handle assumes a control function and control of the relative pivoting of the lateral system from a lowering position to a vertical position of the structure relative to the chassis and vice versa.
  • the maneuvering assembly comprises, on the other hand, a support member for the verticalization-lowering movement, such as, for example, a pneumatic spring.
  • a support member for the verticalization-lowering movement such as, for example, a pneumatic spring.
  • the operating handle provides a U-shaped gripping zone open at its center, having two branches connected by a soul, each offering a support back for the palm of a hand of a user.
  • Such a standing chair gives complete satisfaction with regard to its verticalization-lowering function of its user who is able to move from a sitting position to a standing position without other assistance, human or mechanical, than that provided by the spring pneumatic.
  • the uprighting chair is characterized in that, for each maneuvering assembly, the operating handle is articulated, on the one hand, to the second lever and / or the first lever and, on the other hand, on the first quadrilateral via a rod whose first end is connected by a pivot to the first quadrilateral and the second end is connected by a pivot to the operating handle.
  • This articulation of the handle thus provides very advantageously a significant reduction in its movement compared to the movement of a handle that would be fixed without articulation to the second lever.
  • this reduction of the movement of the handle allows to place it at a position compatible with different seat depths so that the same chair structure can be implemented for users of different sizes.
  • the distance of the two pivots of the link is chosen to adjust the amplitude of the movement of the operating handle as well as possible.
  • the operating handle can be articulated in different locations of the assembly formed by the first and second levers.
  • the operating handle is articulated on the assembly formed by the first lever and the second lever at the connecting pivot between the first and second lever.
  • the chair comprises according to another characteristic of the invention a support member of the verticalization-lowering movement such as for example but not exclusively a cylinder or spring to state change gas.
  • the axis of articulation of the connecting pivot between the link and the first quadrilateral is located, in the sitting position of the chair above a line passing through, firstly, the hinge pivot of the handle on the first and / or second lever and, secondly, the hinge pivot of the rod on the handle.
  • the axis of the hinge pivot of the second lever on the first quadrilateral is, in the seating position of the chair, located below a line passing through, on the one hand, the hinge pin between the first and second levers and, on the other hand, the hinge pivot of the first lever on the rear part of the chassis.
  • the axis of articulation of the connecting pivot between the first and second levers is, in a verticalized position of the chair, located above a line passing through, firstly, the hinge pivot of the first lever on the rear portion of the frame and, secondly, the hinge pivot of the second lever on the first quadrilateral.
  • the axes of articulation of the pivots of the handle are, in the vertical position of the chair, located on either side of the line passing through, d on the one hand, the articulation pivot of the first lever on the rear part of the chassis and, on the other hand, the articulation pivot of the second lever on the first quadrilateral.
  • the aim of the invention is to reduce as much as possible the amplitude of the movements required to implement the function of verticalizing an armchair rolling stand, as illustrated in Fig. 1 to 3 , while providing a very high security to this verticalization function.
  • a standing chair 1 comprises a frame 2, consisting of side half-frames 3 and 4, joined together by cross members 5 and 6, and a cross member, not shown, connecting the wheels. These various constituent elements define a carrying frame provided with drive wheels 10 and steerable steerable wheels 11.
  • the frame 2 corresponds to a chair of rigid design, but it is obvious that a substantially similar conformation could be retained for a folding chair. Indeed, in such a case, the rigid sleepers 5 and 6 are then replaced by folding elements of known design.
  • the chassis 2, described above, is equipped with a verticalizer device which is designed as an articulated structure 12 carried by the chassis 2.
  • the articulated structure 12 is constituted by two lateral articulated systems, symmetrical with respect to a sagittal plane P and which are more particularly visible to Fig. 2 and 3 .
  • Each articulated system 13 is intended to be adapted laterally on the frame 2, for example at each of the half-frames 3 and 4.
  • Each articulated system 13 comprises a first deformable polygon and, according to the example, deformable quadrilateral 17 constituted by two bars 18 and 19, respectively said upper and lower, although they are not arranged, in the illustrated representation Fig. 3 , in the same vertical plane.
  • the bars 18 and 19 are joined, by their posterior terminal part, by an element or a spacer 20 and are mounted on the frame 2, close to the front part of the latter, by a first pivot point 21 on the upper bar 18 and a second hinge point 22 on the lower bar 19.
  • the hinge point 21 is provided in the upper part of the corresponding half-frame 3, 4 while the point of articulation 22 is located on this same half-frame behind and below the hinge point 21.
  • the distance of the articulation points 23, 24 of the bars 18, 19 on the spacer element 20 is provided to correspond to the distance separating the articulation points 21 and 22, so that the quadrilateral 17 has the preferred form of a deformable parallelogram, without such form can be considered strictly necessary for the production of a chair according to the invention.
  • Each articulated system 13 comprises, in addition, a second deformable polygon and, in this case, deformable quadrilateral 26, shown schematically in FIG. Fig. 2 in phantom, connecting the first deformable quadrilateral to a jamb or upright 27 for supporting, alone or in combination with the jamb or homologous amount, a footrest 33.
  • Each articulated system 13 comprises, finally, a backrest frame comprising two uprights 35, each articulated on the first quadrilateral 13, opposite the second quadrilateral 26, via the spacer 20.
  • the file 35 amounts are, moreover, connected by a cross member 36.
  • Each articulated system comprises an actuating assembly 40 interposed between the first quadrilateral 17 and the chassis 2 and, more specifically, the half-frames 34 corresponding.
  • Each operating assembly 40 comprises a first lever 41, articulated on the rear part of the chassis, via a pivot 42 and, at the end of a second lever 43, via a pivot 44 .
  • the other end of the second lever 43 is then articulated on the first quadrilateral and, according to the example shown, the bottom bar 19 via a pivot 45.
  • Each maneuvering assembly also comprises an operating handle 49 which could be described as a multi-socket, to the extent that it must allow the user of the chair to apply a force on this handle, both in the context of the lowering position or seat illustrated in Fig. 2 , only in the context of the verticalization position illustrated in Fig. 3 and during the transition phase or vertical-lowering movement.
  • an operating handle 49 which could be described as a multi-socket, to the extent that it must allow the user of the chair to apply a force on this handle, both in the context of the lowering position or seat illustrated in Fig. 2 , only in the context of the verticalization position illustrated in Fig. 3 and during the transition phase or vertical-lowering movement.
  • each multi-grip handle comprises, as shown more particularly by Fig. 3 and 4 , a handle body 50, equipped with a U-shaped holding bar 51 , open at its center 52.
  • a handle body 50 equipped with a U-shaped holding bar 51 , open at its center 52.
  • U-shaped holding bar 51 open at its center 52.
  • the handle 49 and, according to the illustrated example, more precisely the handle body 50 is articulated both on the first quadrilateral 17 and on the compass or the assembly consisting of the first 41 and second 43 levers.
  • the handle is then articulated on the first deformable quadrilateral 17, and according to the example on the lower arm 19 by means of a rod 55 which is connected by a pivot 56 to a part 57 secured to the lower arm 19.
  • the link 55 is further articulated on the handle 49 and more precisely on the handle body 50 by a pivot 58.
  • the handle 49 is then connected to the two levers 41, 43 by the pivot 44 which then ensures the dual function of articulation of said levers between them and the handle relative to these levers.
  • the uprighting armchair 1 also comprises assistance means 65.
  • these assistance means are constituted, for each of the articulated systems, by a spring gas, interposed between the piece 57 fixed to the amount of the first quadrilateral 17 and the front portion of the frame 2.
  • gas springs 65 effectively makes it possible, on the one hand, to reduce substantially the force required for verticalization and, on the other hand, to slow the lowering movement thus providing a great feeling of safety to the user. 'user.
  • the articulation of the levers 41, 43 is preferably designed to allow automatic locking of this position.
  • the pivot axis 45 of articulation of the second lever 43 on the first quadrilateral 17 is in the sitting position of the chair, located below a line ⁇ passing through, on the one hand, the axis of the hinge pin 44 between the first 41 and second 43 levers and, on the other hand, the axis of the articulation pivot 42 of the first lever 41 on the rear part of the frame 2.
  • the first locking provided by the articulation of the levers 41, 43, could, in a preferred embodiment, be reinforced by an automatic locking of the articulated handle 49 in the seated position. of the armchair.
  • the axis of the pivot 56 of articulation of the rod 55 on the first quadrilateral 17, and here the lower arm 19 is located in the seating position of the chair above a straight line ⁇ ' passing through, on the one hand, the axis of the hinge pin 44 of the handle on the first 41 and second 43 levers and, secondly, the axis of the pivot 58 connecting the handle 49 and the connecting rod 55, it is obtained an automatic locking effect.
  • This preferred embodiment of the chair according to the invention with a double automatic locking of the sitting position, has the advantage of providing a very high security of use of the chair by prohibiting inadvertent tripping verticalization and this without any additional brake system that would weigh down the chair. It should be emphasized that, according to the invention, the unlocking of the seated position is carried out in the context of the winding movement of the stand, so that the user has no particular maneuver to perform before verticalization.
  • this locking is obtained by the configuration adopted for the levers 41, 43. Indeed, there is locking when the axis of articulation of the pivot 44 connecting the first 41 and second 43 levers is, in the upright position of the chair Fig. 3 , located above a line ⁇ "passing through, on the one hand, the hinge pin 42 of the first lever 41 on the rear part of the frame 2 and, on the other hand, the hinge pin 45 of the second lever 43 on the first quadrilateral 17 and here the lower arm 19.
  • the weight of the user is sufficient to increase the locking position, so that it is not necessary to maintain pressure on the handles, the user can then devote himself to activities normal with its upper limbs.

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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)
  • Invalid Beds And Related Equipment (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Finger-Pressure Massage (AREA)
  • Soil Working Implements (AREA)
  • Chairs Characterized By Structure (AREA)
  • Handcart (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Telephone Function (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Eye Examination Apparatus (AREA)

Claims (8)

  1. Aufrichtstuhl für Behinderte und Invaliden, mit einem Gestell (2), das eine Gelenkstruktur (12) trägt, die einen Unterbau (4), eine Fußstütze (33), eine Rückenlehne sowie zwei symmetrische Seitengelenksysteme (13) aufweist, die jeweils folgendes umfassen:
    - ein erstes verformbares Vieleck oder Viereck (17), das zum Tragen des Unterbaus beiträgt und von zwei Stangen, einer oberen (18) bzw. einer unteren (19) gebildet ist, die an dem vorderen Teil des Gestells (2) angelenkt und zu ihren hinteren Teilen durch ein Abstandsteil (20) verbunden sind,
    - ein zweites verformbares Vieleck oder Viereck (26), das zum Tragen der Fußstütze beiträgt,
    - einen Rückenlehnenrahmen (34, 35), der wenigstens über das Abstandsteil (20), gegenüber dem zweiten Viereck (26), an dem ersten Viereck (17) angelenkt ist,
    - sowie eine zwischen dem ersten Viereck und dem Gestell angeordnete Betätigungseinheit (40), die einen ersten Hebel (41), der am hinteren Teil des Gestells (2) sowie am Ende eines zweiten Hebels (43) angelenkt ist, dessen anderes Ende an dem ersten Viereck (17) angelenkt ist, sowie einen Betätigungsgriff (49) umfaßt, der eine Funktion zur Steuerung und zur Kontrolle des relativen Verschwenkens der Seitensysteme von einer Absenkposition in eine Aufrichtposition der Struktur gegenüber dem Gestell und umgekehrt übernimmt,
    dadurch gekennzeichnet, daß für jede Betätigungseinheit der Betätigungsgriff (49) einerseits an dem zweiten Hebel (43) und dem ersten Hebel (41) sowie andererseits an dem ersten Viereck (17) mittels eines Schwingarms (55) angelenkt ist, von dem ein erstes Ende über einen Drehzapfen (56) mit dem ersten Viereck verbunden ist und dessen zweites Ende über einen Drehzapfen (58) mit dem Betätigungsgriff (49) verbunden ist.
  2. Aufrichtstuhl nach Anspruch 1, dadurch gekennzeichnet, daß der Abstand der beiden Drehzapfen (56 und 58) des Schwingarms gewählt ist, um wenigstens den Ausschlag der Bewegung des Betätigungsgriffes einzustellen.
  3. Aufrichtstuhl nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Betätigungsgriff (49) an der durch den ersten Hebel (41) und den zweiten Hebel (43) gebildeten Einheit im Bereich des Verbindungsdrehzapfens (44) zwischen dem ersten Hebel (41) und dem zweiten Hebel (43) angelenkt ist.
  4. Aufrichtstuhl nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß - zur Sicherung einer automatischen Verriegelung der Gelenkstruktur in der Sitzstellung - die Achse des Gelenkzapfens (45) zum Anlenken des zweiten Hebels (43) an dem ersten Viereck (17) in der Sitzstellung des Stuhls unterhalb einer Geraden A liegt, die einerseits durch den Drehzapfen (44) zum Anlenken des ersten Hebels (41) und des zweiten Hebels (43) und andererseits durch den Drehzapfen (42) zum Anlenken des ersten Hebels (41) am hinteren Teil des Gestells (2) verläuft.
  5. Aufrichtstuhl nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß - zur Sicherung einer automatischen Verriegelung der Gelenkstruktur in der Sitzstellung - die Gelenkachse des Drehzapfens (56) zum Anlenken des Schwingarms an dem ersten Viereck in der Sitzstellung des Stuhls oberhalb einer Geraden A' liegt, die einerseits durch den Drehzapfen (44) zum Anlenken des Griffes (49) an dem ersten Hebel (41) und/oder dem zweiten Hebel (43) sowie andererseits durch den Verbindungsdrehzapfen (58) zwischen dem Griff (49) und dem Schwingarm (55) verläuft.
  6. Aufrichtstuhl nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß - zur Sicherung einer automatischen Verriegelung der Gelenkstruktur in der aufgerichteten Stellung - die Gelenkachse des Verbindungsdrehzapfens (44) zwischen dem ersten Hebel (41) und dem zweiten Hebel (43) in der aufgerichteten Stellung des Sitzes oberhalb einer Geraden A" liegt, die einerseits durch den Drehzapfen (42) zum Anlenken des ersten Hebels (41) am hinteren Teil des Gestells (2) sowie andererseits durch den Drehzapfen (45) zum Anlenken des zweiten Hebels (43) an dem ersten Viereck (17) verläuft.
  7. Aufrichtstuhl nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß - zur Sicherung einer automatischen Verriegelung der Gelenkstruktur in der aufgerichteten Stellung - die Gelenkachsen der Drehzapfen (44, 58) des Griffs (49) in der aufgerichteten Stellung des Stuhls auf beiden Seiten einer Geraden Δ" liegen, die einerseits durch den Drehzapfen (42) zum Anlenken des ersten Hebels (41) am hinteren Teil des Gestells (2) sowie andererseits durch den Drehzapfen (45) zum Anlenken des zweiten Hebels (43) an dem ersten Viereck (17) verläuft.
  8. Aufrichtstuhl nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß er ein Hilfsorgan (65) für die Aufricht-Absenkbewegung umfaßt.
EP05356092A 2004-05-24 2005-05-20 Aufrichtstuhl mit Aufrichtoperationsuntersetzung Not-in-force EP1600134B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0405578 2004-05-24
FR0405578A FR2870451B1 (fr) 2004-05-24 2004-05-24 Fauteuil verticalisateur a demultiplication de la manoeuvre de verticalisation

Publications (2)

Publication Number Publication Date
EP1600134A1 EP1600134A1 (de) 2005-11-30
EP1600134B1 true EP1600134B1 (de) 2008-10-22

Family

ID=34942715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05356092A Not-in-force EP1600134B1 (de) 2004-05-24 2005-05-20 Aufrichtstuhl mit Aufrichtoperationsuntersetzung

Country Status (6)

Country Link
US (1) US7398989B2 (de)
EP (1) EP1600134B1 (de)
CN (1) CN100562302C (de)
AT (1) ATE411790T1 (de)
DE (1) DE602005010504D1 (de)
FR (1) FR2870451B1 (de)

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FR2695554B1 (fr) * 1992-09-15 1994-12-23 Int Diffusion Consomma Dispositif d'assistance motorisée, adaptable sur un fauteuil élévateur et fauteuil élévateur en faisant application.
FR2769830B1 (fr) * 1997-10-22 2000-02-11 Int Diffusion Consommateurs Id Perfectionnements aux fauteuils elevateurs pour handicapes et invalides
US6244662B1 (en) * 1997-10-22 2001-06-12 I.D.C. Medical Elevator chair of adjustable seat depth
US6192533B1 (en) * 1999-04-02 2001-02-27 I.D.C. Medical Elevator chairs for the handicapped and invalids
BR0105828B1 (pt) * 2001-11-13 2009-01-13 dispositivo para locomoÇço de deficientes fÍsicos.

Also Published As

Publication number Publication date
US20060012147A1 (en) 2006-01-19
US7398989B2 (en) 2008-07-15
ATE411790T1 (de) 2008-11-15
FR2870451A1 (fr) 2005-11-25
EP1600134A1 (de) 2005-11-30
DE602005010504D1 (de) 2008-12-04
CN100562302C (zh) 2009-11-25
CN1701780A (zh) 2005-11-30
FR2870451B1 (fr) 2006-08-18

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