EP1361844A1 - Coque de siege comprenant des elements de soutien reglables - Google Patents

Coque de siege comprenant des elements de soutien reglables

Info

Publication number
EP1361844A1
EP1361844A1 EP02716789A EP02716789A EP1361844A1 EP 1361844 A1 EP1361844 A1 EP 1361844A1 EP 02716789 A EP02716789 A EP 02716789A EP 02716789 A EP02716789 A EP 02716789A EP 1361844 A1 EP1361844 A1 EP 1361844A1
Authority
EP
European Patent Office
Prior art keywords
seat
seat shell
support
shell according
seat surface
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Withdrawn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
EP02716789A
Other languages
German (de)
English (en)
Inventor
Michael Markwald
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.)
Interco Gesellschaft fur Die Planung und Den Vertrieb Von Reha Hilfen Mbh
Original Assignee
Interco Gesellschaft fur Die Planung und Den Vertrieb Von Reha Hilfen Mbh
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 Interco Gesellschaft fur Die Planung und Den Vertrieb Von Reha Hilfen Mbh filed Critical Interco Gesellschaft fur Die Planung und Den Vertrieb Von Reha Hilfen Mbh
Publication of EP1361844A1 publication Critical patent/EP1361844A1/fr
Withdrawn legal-status Critical Current

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
    • A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to 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
    • A61G5/1091—Cushions, seats or abduction devices
    • 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
    • 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
    • A61G5/121—Rests specially adapted therefor, e.g. for the head or the feet for head or neck
    • 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
    • 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 invention relates to a seat shell, which is particularly intended for attachment to the chassis of a wheelchair or pram, with a seat and a backrest and adjustable support elements for supporting the person accommodated in the seat shell.
  • US Pat. No. 4,039,223 shows a wheelchair in which the footrest and the backrest can be locked in different pivoting positions with respect to the seat surface.
  • the applicant's EP 0 911 008 A2 shows a seat shell in which the backrest and the footrest are pivoted freely on the seat surface.
  • the backrest is also supported against a vertical portion of the wheelchair frame.
  • the seat is articulated on a sliding guide, which on the one hand enables the seat to be moved forward and, on the other hand, allows the seat to be swung up.
  • a tensioning device pulls the seat back into its flat position, which rests on the wheelchair frame, with the backrest in the angled sitting position relative to the seat.
  • Another tensioning device pre-tensions the footrest over its entire pivoting area in relation to the seat surface in such a way that it is also pivoted into the angled position.
  • the mobile seat arrangement described in this application forms an extremely innovative and advantageous receptacle for physically handicapped patients who suffer from spastic stretching cramps. In such patients, spastic muscle spasms lead to uncontrolled stretching movements.
  • these stretching movements were absorbed by rigid wheelchairs.
  • the described in the European patent application mentioned bene device enables the components of the wheelchair to follow the stretching movements in a controlled manner with the application of an elastic restoring force.
  • the swivel axes of the components of this seat shell are arranged in the physiologically optimal pivot points, ie the backrest is rotatably articulated on the seat surface in the area of the hip joint and the footrest is rotatably articulated on the seat area in the area of the knee joint.
  • FIG. 1 Another seat shell for attachment to the chassis of a wheelchair is known from DE 199 30 103 Cl.
  • This seat shell has taken over the swiveling connection between the backrest and the footrests attached to the chassis of the wheelchair in the present case.
  • it has Torax pads, i.e. Support cushions for the chest, which are attached to the backrest so that they can be swiveled across.
  • These support elements can be adjusted by muscle strength and thus offer the person being picked up only a slight hold. In addition, they only fix the person picked up on the backrest, but not on the seat shell.
  • the object of the invention is to provide a seat shell on which the position of the person taken on the seat is fixed by easily adjustable and securely lockable support elements.
  • This object is achieved in that the support elements are arranged above the two lateral edges of the seat surface and their distance from one another is adjustable in the transverse direction of the seat surface.
  • the adjustable support elements according to the invention also called adduction guidance or adduction pad, ensure secure lateral guidance.
  • the wheelchair according to the invention is particularly advantageous, in particular for children with spastic disabilities, since it can be adjusted to the increasing size as the children grow.
  • the support elements are preferably pivotally attached to each longitudinal edge of the seat. This can result in a particularly simple adjustability.
  • the ver pivotable attachment also enables the inclination of the support elements with respect to the vertical plane. In this way, trapezoidal spaces can be enclosed by the two opposite support elements, which expand downwards. In this way, the buttocks and thighs of the person taken are held by the support elements against lifting off the seat.
  • At least one support arm which carries the support element, is articulated on each longitudinal edge of the seat surface. Two support arms are preferably used to fasten each support element.
  • each longitudinal edge of the seat surface has a longitudinal bore in which a threaded rod is arranged, which carries a head at its front end for the positive engagement of a screwing tool and which exerts a clamping force on the support arm when screwing tight.
  • a threaded rod is arranged, which carries a head at its front end for the positive engagement of a screwing tool and which exerts a clamping force on the support arm when screwing tight.
  • each longitudinal bore is arranged within an extruded profile on the side edge of the seat surface.
  • known aluminum extrusion profiles with a central longitudinal bore which are produced in large quantities, for example for window construction or for the construction of portable frames, can provide a reliable receptacle for the fastening elements of the support elements on both sides of the seat shell.
  • the aluminum extrusion profiles can be connected in any way with a metal plate that forms the seat. For example, a welded connection or a screw connection is suitable for fastening these profiles.
  • the threaded rod preferably exerts a clamping force on two mutually parallel support arms, which together hold a support element.
  • the two support arms can attach the support element to the seat with sufficient stability to counteract the muscle forces generated by spastic stretching cramps.
  • the two support arms should be fastened parallel to one another on a common connecting sleeve.
  • the connecting sleeve can also be received in the longitudinal bore on the longitudinal edge of the seat surface, the threaded rod extending within the connecting sleeve. This creates a compact and easy-to-use fastening device for the support element.
  • the support element should be pivotably attached to the support arm.
  • the two mutually opposite support elements can then be arranged either parallel to one another and vertically or inclined to one another.
  • the support element has a metal sheet and a cushion, an angled area of the metal sheet forming the receptacle for the pivot axis of the support element.
  • the support arm should have a slot into which the folded area of the metal sheet is inserted, the support arm and the bent area of the metal sheet is jointly penetrated by a clamping screw, which forms the pivot axis of the support element and generates a clamping force which locks the support arms on the metal sheet. This creates a fastening device similar to that on the longitudinal edge of the seat surface to which the lower ends of the support arms are articulated.
  • the screw head of the clamping screw should be arranged on the front of the seat shell and thus somewhat above the screw heads of the threaded rods.
  • the distance of a support element from the longitudinal center of the seat surface can first be set and locked by the lower screw head of the threaded rod.
  • the inclination of the support element can then be adjusted using the upper screw head of the clamping screw.
  • the tensioning screw should simultaneously protrude through the two support arms and bent areas of the metal sheet of the support element, which are clamped in slots by these support arms.
  • FIG. 1 is a side view of a seat shell according to the invention on the chassis of a wheelchair
  • FIG. 2 shows a side view of part of an alternative connecting device which connects the backrest to the seat surface of the seat shell
  • FIG. 3 shows a side view of the wheelchair from FIG. 1 with the backrest and seat surface pivoted
  • FIG. 3 shows a side view of the wheelchair from FIG. 1 with the backrest and seat surface pivoted
  • Fig. 4 is a side view of part of one of the embodiment
  • FIG. 5 a representation of an extruded profile and a connecting element cut along the section line VV from FIG. 1
  • FIG. 6 is a sectional view taken along section line VI-VI of a double strut supporting the vertical frame of the chassis
  • FIG. 7 is a partially sectioned side view of the double strut from FIG. 6,
  • FIG. 9 is an enlarged view of a support arm for the support cushion of FIG. 8,
  • FIG. 10 is a side view of the support pillow from FIG. 8 with the fastening device cut, FIG.
  • FIG. 11 shows a representation of the support surface cut along the section line XI-XI from FIG. 10.
  • the seat shell shown in Fig. 1 consists essentially of a backrest 1, a seat surface 2 and a footrest 3.
  • Backrest 1 and seat surface 2 are shown in Fig. 1 without the protective textile cover from which they are usually enveloped.
  • the support surfaces for the body parts are provided with cushion pads and covered with the protective cover. This ensures a soft contact of the person accommodated in the seat shell with the surface of the seat shell.
  • the upholstery and protective covers are largely omitted in the drawings.
  • Both the backrest 1 and the seat surface 2 have profiles 4 running on their two side edges. These are extruded aluminum profiles 4, the cross section of which can be seen in particular in FIG. 5.
  • Fig. 8 shows that on each side of the seat 2, a longitudinal profile 4 is attached.
  • the backrest 1 also has a profile 4 on each of its sides.
  • the profiles 4 have a substantially square cross section.
  • a groove 5 is arranged on each side of the profile 4.
  • Each groove 5 has side undercuts 6, so that either screw heads or movable sliding blocks can be inserted into the groove 5 in a form-fitting manner.
  • the profile 4 has a longitudinal bore 7.
  • Fig. 1 shows the preferred embodiment in which the seat 2 and the backrest 1 are pivotally connected to each other.
  • a first support plate 12 is fastened in the longitudinal groove 5 on the profile 4 on the side of the backrest 1 by means of clamping screws 9.
  • the screw head 10 (see FIG. 5) of the clamping screw 9 is positively received in the groove 5.
  • a cap nut 11 is screwed onto the thread of the clamping screw 9.
  • the second support plate 8 is attached to the profile 4 on the side of the seat 2.
  • the support plates 8 and 12 are pivotally connected to each other with a hinge pin 13.
  • a corresponding connection arrangement is fastened to the profiles 4 of the backrest 1 and the seat surface 2 located there.
  • the underside of the seat surface 2 is held on the chassis 15 of a wheelchair which is displaceable in the longitudinal direction of the seat shell 2 and which has a large rear wheel 47 and a steerable front wheel 48 on both sides.
  • the seat surface 2 is pivotally articulated on the carriage 14.
  • articulated holding elements 16 are also fastened in the upper third, which pivotally connect the backrest 1 to the vertical frame 18 of the chassis 15 about a hinge pin 17.
  • the backrest 1 is pivoted rearward with respect to the seat surface 2 and moves about the hinge pin 17 of the holding element 16. Since the backrest 1 is vertical through the holding element 16 Frame 18 of the chassis 15 is attached, the seat 2 must be moved forward and swivel upward, which is made possible by the carriage 14 to which the seat 2 is articulated.
  • the hinge pin 13, which enables the backrest 1 to be pivoted toward the seat surface 2, is located exactly at the level of the hip joint due to the preferably used support plates 8, 12. With a growing person, the position of the hinge pin 13 can be continuously adjusted are, since the clamping screws 9, which hold the support plates 8, 12, are received in elongated holes 19, 20 of the support plates 8, 12, which extend transversely to the grooves 5 in the profiles 4.
  • the footrest 3 which is supported by lateral support plates 21 which are fastened in the longitudinal groove 5 on both sides of the seat surface 2.
  • the lateral support plates 21 are connected to support elements 23 of the footrest 3 by means of pivot pins 22.
  • the position of the hinge pin 22 can be adjusted, on the one hand, by moving the clamping screws 9 along the groove 5 and, on the other hand, by moving the elongated holes 24 through which the clamping screws 9 pass.
  • FIGS. 1 and 4 show an alternative embodiment of the support plates 8 ', 12' and 21 ', in which, instead of elongated holes, a plurality of individual bores arranged next to one another are arranged in rows 49 of bores.
  • This design also makes it possible to adjust the fastening of the support plates 8 ', 12' and 21 'to the profiles 4 transversely to their grooves 5.
  • the side support cushions 50 on the backrest 1 which can be seen in FIGS. 1 and 4 are so-called trunk supports which support the upper body of the patient accommodated in the wheelchair.
  • the tension springs 25 and 26 can be seen schematically in FIGS. 1 and 3.
  • the tension spring 25 pulls the slide 14 backwards, so that the seat surface 2 is backwards and the backrest 1 is biased into the vertical, upright position.
  • This pretensioning force acts over the entire swivel range between the backrest 1 and the seat surface 2, as well as over the entire displacement path of the seat surface 2.
  • the tension spring 26 pulls the footrest 3 into the angled position with respect to the seat surface 2, and also over the entire pivoting range of the footrest 3.
  • a single rigid support plate 27 can be attached to the grooves 5 of the profiles 4 on each side of the seat 2 via clamping screws 9 (see Fig. 2) ,
  • Fastening elements can also be inserted into the longitudinal bores 7 of the profiles 4.
  • Fig. 1 it can be seen that the upper section the longitudinal bores 7 of the vertical profiles 4 on the backrest 1 support struts 28 for an adjustable holding device 29 for a headrest (not shown). Again, on both sides of the backrest 1 there is a support strut 28 in the profile attached there.
  • the vertical frame 18 is adjustable in size in the longitudinal direction of the seat 2. For this reason, the vertical frame 18 has two double struts 31 at its lower ends, each of which can be inserted into a double tube 30 of the chassis 15.
  • Each strut of the double strut 31 is hollow and has at its end a clamping body 32 abutting against an oblique end of the strut 31 via an inclined surface.
  • the clamping bodies 32 can be pulled against the ends of the double struts 31 by means of two tensioning screws 33, so that jamming takes place within the double tube 30 and the vertical frame 18 is locked on the undercarriage 15.
  • Each support element 34 consists of an angled metal sheet 35 to which a cushion 36 is attached.
  • Each support element 34 is fastened with two support arms 37 to a profile 4 on one side of the seat 2.
  • a connecting sleeve 38 which is diagonally divided in the middle and runs in each profile 4 within the longitudinal bore 7 with little play, on the two parts of which the two support arms 37 are fastened in a rotationally fixed manner.
  • a threaded rod 40 runs inside the connecting sleeve 38, the threaded front end of which is screwed into a clamping body 39.
  • the outwardly projecting end of the threaded rod 40 carries a screw head 41, which can be positively gripped with a wrench.
  • the screw head is located near the front edge of the seat 2 the footrest 3 (see Fig. 1).
  • the clamping body 39 is moved in the axial direction to the connecting sleeve 38.
  • the connecting sleeve 38 about the inclined surface of the clamping body 39, this is also moved radially outwards.
  • the two connecting sleeves 38 are displaced radially relative to one another via their inclined surface and are jammed within the longitudinal bore 7 in the profile 4 on the seat surface 2.
  • the support arms 37 are essentially rigidly clamped to the profile 4.
  • the support member 34 can be locked at the upper end of the support arms 37.
  • a clamping screw 42 is arranged within spacer sleeves 43, 44.
  • a screw head 45 is in turn arranged at the front end of the clamping screw 42.
  • Both the screw head 45 of the clamping screw 42 and the screw head 41 of the threaded rod 42 are located on the front end face of the support element 34 on the one hand and the profile 4 on the seat surface 2 on the other hand.
  • Each support element 34 can thus be inclined as well as in its position in The transverse direction of the seat 2 can be adjusted as desired.
  • the support elements 34 can be adjusted to different body widths over a large adjustment range.
  • the pads 36 of the support elements 34 can also be placed at an angle to one another, so that they surround, for example, a trapezoidally widening space.
  • the support elements which are also called adduction guides, give not only a lateral support force, but also a holding force on the hip and legs of the patient accommodated in the wheelchair which prevents them from slipping out upwards.
  • the extruded profiles 4 are fastened to the backrest 1 and the seat surface 2 in any suitable manner.
  • they can be welded directly to metal plates that form the backrest 1 and the seat surface 2.
  • a detachable connection is also possible.
  • FIG. 9 shows, for example, a screw connection in which a connecting screw 51 passes through the metal plate forming the seat surface 2 is screwed into an internal thread of a sliding block 52, which is received in a longitudinal groove of the profile 4.
  • Such screw connections can be arranged at several points along the length of the profile 4.

Abstract

L'invention concerne une coque de siège, qui se fixe en particulier sur la structure d'un fauteuil roulant ou d'un landau. Cette coque comprend une surface d'assise et un dossier, ainsi que des éléments de soutien (34) réglables servant à soutenir la personne installée dans la coque. L'objectif de l'invention est de créer une coque de siège permettant de stabiliser la position de la personne installée sur la surface d'assise grâce à des éléments de soutien facilement réglables et verrouillables de manière sûre. A cet effet, ces éléments de soutien (34) sont disposés au-dessus des deux bords latéraux de la surface d'assise (2), leur écartement étant réglable dans le sens transversal de la surface d'assise (2).
EP02716789A 2001-02-21 2002-02-19 Coque de siege comprenant des elements de soutien reglables Withdrawn EP1361844A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10108311A DE10108311A1 (de) 2001-02-21 2001-02-21 Sitzschale mit verstellbaren Stützelementen
DE10108311 2001-02-21
PCT/EP2002/001744 WO2002065971A1 (fr) 2001-02-21 2002-02-19 Coque de siege comprenant des elements de soutien reglables

Publications (1)

Publication Number Publication Date
EP1361844A1 true EP1361844A1 (fr) 2003-11-19

Family

ID=7674969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02716789A Withdrawn EP1361844A1 (fr) 2001-02-21 2002-02-19 Coque de siege comprenant des elements de soutien reglables

Country Status (4)

Country Link
US (1) US20040084950A1 (fr)
EP (1) EP1361844A1 (fr)
DE (1) DE10108311A1 (fr)
WO (1) WO2002065971A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102007046713A1 (de) * 2007-09-28 2009-04-02 Meybrand Gmbh Sitzschale für körperbehinderte Personen, zur Befestigung auf rollbaren Untergestellen
IT1401323B1 (it) * 2010-03-11 2013-07-18 Barbieri S R L Telaio per una sedia a rotelle
TWI415597B (zh) * 2011-03-23 2013-11-21 Univ Yuan Ze 智慧型機器人輪椅
TWI401070B (zh) * 2011-05-02 2013-07-11 Univ Yuan Ze 智慧型機器人輪椅之史都華平台座椅機構及其控制方法
ITPI20120042A1 (it) * 2012-04-12 2013-10-13 Platinum Administration S A Ausilio dinamico alla mobilita' per distonie
EP2956106B1 (fr) * 2013-02-18 2022-01-05 Mascull, Roger Thomas and Mascull, Elizabeth Jocelyn as trustees of the RT and EJ Mascull Family Trust Système de réglage d'angle de dossier sur un siège pour personne physiquement handicapée
WO2014166495A1 (fr) * 2013-04-10 2014-10-16 R82 A/S Siège
ITPD20130099A1 (it) * 2013-04-17 2014-10-18 Stefano Casotto Seggiolino regolabile
WO2016005787A1 (fr) * 2014-07-07 2016-01-14 Casotto Stefano Siège réglable
FI20175101L (fi) * 2017-02-06 2018-08-07 Elekta Ab Potilaan tukilaite ja menetelmä potilaan asennon säätämiseksi
US11141626B2 (en) 2017-06-02 2021-10-12 ALLTrand, Inc. Device for safely strengthening core muscles
US11083929B2 (en) * 2017-06-02 2021-08-10 ALLTrand, Inc. Device for safely strengthening core muscles
CN109224229A (zh) * 2018-09-12 2019-01-18 贵州省人民医院 一种麻醉科用吸入式麻醉装置

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SE391873B (sv) 1974-10-15 1977-03-07 Landstingens Inkopscentral Stol med ett i olika vinkellegen lasbart ryggstod
US4073537A (en) * 1976-09-23 1978-02-14 Hammersburg Don D Universal support pads for wheelchair
FR2556587B1 (fr) * 1983-12-20 1986-12-26 Mathis Michel Siege pour handicapes
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Also Published As

Publication number Publication date
WO2002065971A1 (fr) 2002-08-29
DE10108311A1 (de) 2002-08-29
US20040084950A1 (en) 2004-05-06

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