WO2007042033A1 - Disposition de réglage de siège - Google Patents

Disposition de réglage de siège Download PDF

Info

Publication number
WO2007042033A1
WO2007042033A1 PCT/DK2006/000559 DK2006000559W WO2007042033A1 WO 2007042033 A1 WO2007042033 A1 WO 2007042033A1 DK 2006000559 W DK2006000559 W DK 2006000559W WO 2007042033 A1 WO2007042033 A1 WO 2007042033A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
connection member
carrying structure
spindle
arrangement according
Prior art date
Application number
PCT/DK2006/000559
Other languages
English (en)
Inventor
Flemming MØLLER
Original Assignee
R82 A/S
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 R82 A/S filed Critical R82 A/S
Publication of WO2007042033A1 publication Critical patent/WO2007042033A1/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
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/107—Arrangements for adjusting the seat positioning the whole seat forward or rearward
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards

Definitions

  • the present invention discloses an arrangement which may be used in order to change the orientation, inclination and position of a seat in relation to an undercarriage.
  • the present invention aims at providing an arrangement which is both easy to use re- gardless of the weight of the user, uncomplicated to construct and thereby also simple to maintain, and at the same time allows the inclination of the seat to be changed for example from horizontal to an angle of more than 45° in relation to the horizontal position.
  • the present invention addresses this by providing an arrangement for adjusting the seat's position in relation to a seat carrying structure, wherein the arrangement comprises:
  • first connection member connecting the seat to the chassis, by means of piv- otable joints in either end of the first connection member
  • connection member which is fixed to either the seat or the carrying structure in one end of said second connection member, and which member is provided with an oblong aperture, in which aperture a pin provided on the seat or the carrying structure, may guide and limit the movement of the second connection member;
  • the - adjustable and lockable telescopic means arranged between and fastened to the carrying structure and the seat.
  • the second connection member will slide in relation to the pin such that the seat will rotate about the pivotal joints of the first connection member. In this manner, more than one movement is created.
  • the inclination of the seat is changed due to the slidable movement of the pin in the oblong aperture in the second connection member due to the change of the length of the telescopic means and the length of the first connection member.
  • the point of gravity is moved in relation to the movement of the seat such that in applications where the carrying structure has a limited ability to compensate for excessive eccentric loads, this may be compensated by the seat sliding in the horizontal plane as well, in order to maintain the point of gravity at substantially the same position in which it was before the seat's inclination was altered.
  • the carrying structure comprises two substantially parallel beam members arranged with a mutual distance, and that first and sec- ond connection members are provided for each beam member.
  • first and sec- ond connection members are provided for each beam member.
  • a dual set of first and second connection members is provided such that the seat will be attached to the beam members in either side by identical but separate first and second connection members.
  • the arrangement provides for the telescopic means to be in the shape of a spindle.
  • a spindle is a simple mechanical and well-proven device which will make the adjustments of the seat inclination in relation to the carrying structure very safe, simple and reliable.
  • the force needed to rotate the spindle in order to change the length of the telescopic means may be such that a relatively small force is necessary in order to activate the spindle and thereby change the length of the telescopic means and thereby the inclination of the seat structure.
  • a first transverse member is provided perpendicular to and between the first connection members, and a second transverse member is provided perpendicular to and between the second connection members, and that a spindle is arranged between the first and second transverse members, where said spindle is substantially parallel to said beams.
  • the carrying structure comprises two substantially parallel beam members in that one single spindle may be provided substantially in the middle between the two beams such that the telescopic means in the shape of a spindle will be able to activate the inclination of the seat which will be guided and controlled by the first and second connection members.
  • the oblong aperture has a curved shape
  • the first connection member has a certain length between the pivotal joints arranged in either end of said first connection member.
  • the curved shape of the aperture, which aperture interacts with the pin such that the movement of the seat is controlled by the shape of the curved shape of the aperture facilitates that the point of gravity will be transferred during the movement such that as the telescopic means is extended or retracted, the first connection member will rotate around the fastening point to the carry- ing structure whereas the second connection member will slide in relation to the pin along the curved shape of the oblong aperture provided in the second connection member.
  • the spindle may be extended or retracted by rotation, and that the rotation may be supplied by a manually operated handle or an electrically operated motor optionally with remote control.
  • the mechanical version is substantially unproblematic in that the handle will assure that the spindle will always be workable and not dependent on a battery or the like.
  • the electrical motor option is interesting in particular with a remote control such that the user of for example a wheel chair will be able to alter the inclination of the chair without getting out of the chair and without help from bystanders.
  • the seat arrangement In applications where the seat arrangement is provided in vehicles, it may be less interesting to have the manual option in that it will be difficult to be in a seat and at the same time change the inclination by rotating the handle arranged in a spindle whereas the electrical option may be operated simply by pushing a button or having a remote control.
  • the second transverse member further has attachment means for means for adjusting the back rest's inclina- tion in relation to the seat, which back rest is pivotably connected to the seat, and that the means for adjusting the inclination may be locked in any desired position, and further that the means comprises resilient means allowing slight movement of the backrest in relation to the seat.
  • the invention foresees that also the inclination of the back rest may be adjusted independently of the seat rest. For this reason, means for adjusting the inclination are provided and by further providing a resilient feature in the adjustment means, the back rest will have a certain flexibility which will add comfort to the user.
  • inventive arrangement according to the invention may in further advantageous embodiments be incorporated in a wheelchair or in seat constructions used in cars, trucks, trains, air crafts or other vehicles.
  • Fig. 1 illustrates a cross-section through a wheelchair wherein the inventive prin- ciple according to the present invention is incorporated
  • Fig. 2 illustrates the wheelchair in an inclined position
  • Fig. 3 illustrates the wheelchair in a substantially straight position.
  • fig. 1 a cross-section through the carrying and seat structure of a wheelchair is illustrated. Cushions and other supports are not depicted in order to visualise the inventive seat adjustment arrangement according to the present invention.
  • the seat adjustment arrangement in this particular embodiment comprises a seat from which the carrying beam 1 of a seat structure is depicted. Attached to the seat beam 1 is a first connection member 2 and a second connection member 3.
  • the carrying structure comprises two parallelly arranged beams 4 of which only one is shown.
  • the carrying structure corresponds to the applicant's prior invention filed in the Danish priority founding application, PA 2004 01668. hi this context, it should be noted that the seat adjustment arrangement according to the present invention may be applied to any carrying structure but by way of example, the carrying structure from the above mentioned prior patent application will be used as an example.
  • the principles of the present invention are important.
  • the carrying structure in the applicant's prior patent may pivot about a joint connecting upper and lower beam members. The angle/inclination of the upper beam is thereby altered.
  • the present invention may consequently as explained within the present invention compensate for this and adjust the seat's inclination in any described angle regardless of the carrying structure.
  • the carrying structure and seat adjustment arrangement is in fig. 1 cut in half such that the other half will be a mirrored image of fig. 1. This implies that there will be corresponding features along the other side of the wheelchair.
  • Connected to the first connection member is a first transverse member 5, and connected to the second connection member is a second transverse member 6. Between the two transverse members 5,6, a spindle 7 is arranged. By rotating the handle 8 of the spindle 7, the distance be- tween the first transverse member 5 and the second transverse member 6 will be changed.
  • an oblong aperture 9 is provided such that a pin 10 fastened to the beam 4 will limit the movement of the second connection member 3 to the extent of the oblong aperture 9. Therefore, as the spindle 7 is extended or re- tracted and thereby the distance between the two transverse members 5,6 is becoming longer or shorter, the pin 10 will move in the oblong aperture 9 and guide the movement to the seat beam 1.
  • Attached to the second transverse member 6 is a means for adjusting the inclination of the back rest.
  • the back rest is here depicted by the back rest beam 13, and the means for adjusting the inclination is in the shape of a gas spring 14.
  • the gas spring provides for resiliency such that forces applied to the back rest beam 13 will be resiliently absorbed by the gas spring 14.
  • the gas spring furthermore comprises a release mechanism 15 such that the piston part 16 of the gas spring 14 may be moved in order to compensate for the inclination of the back rest 13 in relation to the seat beam 1.
  • a side view of one half of the wheelchair is illustrated where the seat inclination is such that it is tilting slightly forwards, m this situation, the pin 10 is in one of the extremities of the oblong aperture 9 provided in the second connection member 3.
  • the limiting factor in this direction is the length of the oblong aperture 9 such that if the oblong aperture had been longer, it would have been possible to tilt the seat even further forwards.
  • a further limitation may be in the positioning of the spindle 7 which may interfere with other features of the seat.
  • the first transverse member 5 could have been arranged in a lower position by redesigning the first connection member 2 in a manner which would have brought the first transverse member in a lower position in relation to the seat 1.
  • the second transverse member 5 could have had a curved shape such that the attachment point of the spindle 7 on the first transverse member 5 could have been lower without changing the shape of the first connection member 2.
  • the curved shape of the oblong aperture 9 foresees that a smooth movement of the inclined seat beam is achieved. Furthermore, as is visible by comparing the two posi- tions of the seat depicted in fig. 2 and fig. 3, the point of gravity is further back in the situation depicted in fig. 2 as is the case with the positioning of the seat as depicted in fig. 3.

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)
  • Seats For Vehicles (AREA)

Abstract

Disposition de réglage de siège, pour régler la position du siège par rapport à une structure de support du siège, la disposition comprenant : - un premier élément de liaison, reliant le siège au châssis au moyen de joints articulés à chaque extrémité du premier élément de liaison ; - un second élément de liaison, qui est fixé en une extrémité dudit second élément de liaison soit au siège soit à la structure support, ledit élément étant doté d'une ouverture allongée, ouverture dans laquelle une clavette disposée sur le siège ou la structure support peut guider et limiter le mouvement du second élément de liaison ; - des moyens télescopiques, réglables et verrouillables, disposés entre la structure support et le siège et fixés à l'une et l'autre.
PCT/DK2006/000559 2005-10-07 2006-10-06 Disposition de réglage de siège WO2007042033A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200501406 2005-10-07
DKPA200501406 2005-10-07

Publications (1)

Publication Number Publication Date
WO2007042033A1 true WO2007042033A1 (fr) 2007-04-19

Family

ID=37496648

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2006/000559 WO2007042033A1 (fr) 2005-10-07 2006-10-06 Disposition de réglage de siège

Country Status (1)

Country Link
WO (1) WO2007042033A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014166495A1 (fr) * 2013-04-10 2014-10-16 R82 A/S Siège

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655471A (en) * 1986-01-13 1987-04-07 Peek Gregory A Wheelchair having adjustable backrest
US5044647A (en) * 1989-11-17 1991-09-03 Folio Products, Inc. Stabilized reclining wheelchair seat
WO1997027832A1 (fr) * 1996-02-01 1997-08-07 Robert Nicault Siege avec un dispositif integre de verticalisation
US6032976A (en) * 1997-09-08 2000-03-07 Sunrise Medical Hhg Inc. Wheelchair with tilting seat
WO2000027332A1 (fr) * 1998-11-09 2000-05-18 Invacare Corporation Siege basculant a centre de gravite constant pour fauteuil roulant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655471A (en) * 1986-01-13 1987-04-07 Peek Gregory A Wheelchair having adjustable backrest
US5044647A (en) * 1989-11-17 1991-09-03 Folio Products, Inc. Stabilized reclining wheelchair seat
WO1997027832A1 (fr) * 1996-02-01 1997-08-07 Robert Nicault Siege avec un dispositif integre de verticalisation
US6032976A (en) * 1997-09-08 2000-03-07 Sunrise Medical Hhg Inc. Wheelchair with tilting seat
WO2000027332A1 (fr) * 1998-11-09 2000-05-18 Invacare Corporation Siege basculant a centre de gravite constant pour fauteuil roulant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014166495A1 (fr) * 2013-04-10 2014-10-16 R82 A/S Siège
US9827154B2 (en) 2013-04-10 2017-11-28 R82 A/S Seat

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