EP0960614A2 - Garnitures et fauteuil destiné à être utilisé avec de telles garnitures - Google Patents

Garnitures et fauteuil destiné à être utilisé avec de telles garnitures Download PDF

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Publication number
EP0960614A2
EP0960614A2 EP99110351A EP99110351A EP0960614A2 EP 0960614 A2 EP0960614 A2 EP 0960614A2 EP 99110351 A EP99110351 A EP 99110351A EP 99110351 A EP99110351 A EP 99110351A EP 0960614 A2 EP0960614 A2 EP 0960614A2
Authority
EP
European Patent Office
Prior art keywords
seat
chair
arm rest
arm
swinging
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Withdrawn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
EP99110351A
Other languages
German (de)
English (en)
Other versions
EP0960614A3 (fr
Inventor
Jens Kugle
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.)
Kugle Holding AS
Original Assignee
Kugle AS
Kugle Holding AS
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 Kugle AS, Kugle Holding AS filed Critical Kugle AS
Publication of EP0960614A2 publication Critical patent/EP0960614A2/fr
Publication of EP0960614A3 publication Critical patent/EP0960614A3/fr
Withdrawn legal-status Critical Current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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to the seat portion
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/0242—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by electric motors
    • 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
    • A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
    • A61G2203/74—General characteristics of devices with special adaptations, e.g. for safety or comfort for anti-shear when adjusting furniture
    • 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 concerns to a fitting for use in a chair, preferably wheel chair, comprising a seat, a back, and arm rest, each comprising a frame and a cushion, and where the back and the arm rests are pivotable relative to the seat.
  • a chair preferably wheel chair, comprising a seat, a back, and arm rest, each comprising a frame and a cushion, and where the back and the arm rests are pivotable relative to the seat.
  • the invention likewise concerns such a chair comprising a seat, a back, and arm rest, each comprising a frame and a cushion, and where the back and the arm rests are pivotable relative to the seat.
  • a chair of this kind where back and arm rests can be pivoted and/or regulated relative to the seat are particularly used for wheel chairs for the disabled.
  • a chair according to the invention may also find application within other chairs, as for example swivel chairs, car seats, and the like.
  • a wheel chair normally has an control panel disposed foremost on one of the arm rests. It is important that the user has an easy and unhindered operation of the control buttons independent of the swinging of the back.
  • the prior art wheel chairs are disadvantageous as the arm rest is not pivoted simultaneously with the back or pivoted in a fixed angle together with the back. In a first situation where the arm rest is fastened to the frame of the seat of the chair, even a relatively limited pivoting of the back will cause that the user may loose contact with the control panel. In second case, where the arm rest is fastened to the frame of the back and pivots together with the back, the arm rest would come to stand obliquely upwards with an angle corresponding to the tilt of the back. In practice, this is not an ergonomical correct position for the user.
  • An ergonomical correct swinging of back and arm rest relative to the seat is important, irrespectively whether there is spoken of wheel chairs for disabled persons, persons with deformities or of common chairs, as, for example, swivel chairs.
  • wheel chairs or other special chairs in which persons have to go in and out, as for example car seats, chairs in clinics, and the like, where persons have to have easy access to and from the chair simultaneously with the possibility of swinging the back relative to the normal upright position of the user, it is also important that the arm rest is shaped in such a way that easy access to and from the chair is created and also that there is created possibility for possible helpers to get a physically handicapped wheel chair user up and down of a wheel chair in an easy way.
  • a fitting of the kind mentioned in the introduction which is peculiar in that it comprises two side plates provided with a groove for receiving a part of the frame elements of the chair, preferably the sides of flatly oval tubes, a tubular middle piece having a stub or the like for fastening a sub-element and which is arranged for being positioned on a conical peg or in a conical boring, respectively, which is fastened to one of the side plates, the middle piece having a conical boring or a conical peg, respectively, so that clamping of the side plates of the fitting about the frame element via the conical faces establishes a rotationally firm position for the middle piece and the sub-element connected thereby.
  • the chair according to the invention is peculiar in that it comprises tubes, preferably flatly oval tubes, in the frames for arm rests, seat and back and the bracket of the arm rest, and that for mutual fastening of the sub-elements of the chair there is used a fitting comprising two side plates with a groove for receiving the tubes and a middle piece which is situated rotatably above a conical peg on one of the side plates, and which by clamping the side plates about the tube is fixed in a rotationally firm position, the middle piece comprising a stub or the like for fastening sub-elements to the chair.
  • the chair is peculiar in that the back is arranged for swinging along a course where the back extends as a tangent to a curve being approximately circular and having a centre located in a position before the cushion of the back and above the cushion of the seat, and that the arm rests are arranged for approximately pivoting half the angle of the pivoting of the back.
  • the fitting according to the invention may be used for mutual connection of the different frame elements in the chair as well as it may be used for fastening other auxiliary equipment or other elements forming a part of a chair.
  • the fitting is easy to manufacture as it consists of few single elements, and it will be simple to place the fitting with the two grooves about a frame element in the chair and thereafter perform a clamping. Because of the conical form, it will be possible to establish a rotationally firm position for the middle piece. It is thus possible to fix a second frame element or an auxiliary equipment in relation to a first frame element received in the two grooves in the side plates of the fitting.
  • the fitting may, for example, be provided with a journal used for controlling the pivoting of an arm rest as described later.
  • the journal engages a guideway and it utilized for controlling the pivoting of the arm rest. Because of the placing of the groove in the side plates, it will be relatively easy to perform an individual adjustment of the height of the arm rest by performing a displacement of the fitting along the length of the bracket of the arm rest and to perform a clamping of the two side plates about the bracket in a suitable position. With this fitting, the journal for use in the guideway will be welded to the middle piece, and the two side plates are ten squeezed about a flatly oval tube which is bent for forming the bracket of the arm rest.
  • a fitting of this kind is also usable for mounting the arm rest to the bracket.
  • the arm rest By loosening the two side plates, the arm rest may thus be displaced longitudinally of the groove, and simultaneously there may be established a swinging of the two side plates in relation to the middle piece.
  • After clamping the fitting there is established a rotationally firm position of the arm rest relative to the bracket.
  • a corresponding fitting may be used on other frame elements in the chair, for example the frame of the back, for fixing different auxiliary equipment, such as head control, reading lights, and like, on the frame of the wheel chair.
  • a first principle is to let the back be guided in a curved groove fastened to the seat frame or the chair frame.
  • a guiding in a groove can take place by letting two pins engage the groove and control the movements of the back, as the swinging movement of the chair is established by using a linear actuator disposed under the chair seat.
  • This may be said to be a guideway arrangement.
  • the guideway arrangement may also be established by a single pin engaging a guideway at one side of the seat or at each side of the seat, and that a second point of the frame of the back is fixed to the actuator under the seat of the chair.
  • the back may be mounted for swinging about a point being centre of the curved movement.
  • the back will be moved by a linear actuator under the chair seat.
  • a third possibility is the use of a link arrangement.
  • a link arrangement there may be created a curved movement with the back following the tangent to the curved course by placing a double link system under the back.
  • a chair built up according to this principle can be peculiar in that the link arrangement between the seat and the back comprises a central actuator acting on a first arm which is fastened to an axle being provided with a second arm at each end, the second arm engaging a third arm at each side of the back via a journal, which third arms being pivotably suspended on each their brackets mounted at each side of the seat frame.
  • the ergonomically correct swinging of the arm rest is not a swinging through the same angle and not a keeping of the arm rest in a horizontal position either. It has appeared, that a swinging of the arm rest under the half angle relative to the swinging of the back gives an ergonomically correct positioning of the arm rest relative to the back when this is swung back. It is to be noted that a back in a chair according to the invention would be able to swing from a largely vertical position through 90° to a largely horizontal position. However, a back will yet preferably be swung 60° from a vertical position. By such a swinging, the arm rest will perform a corresponding upward directed swinging through about 30° from a horizontal position.
  • the swinging of the arm rest may occur according to the same principle as the swinging of the back.
  • a guideway arrangement in combination with a rotational suspension of the arm rest on the back frame.
  • the arm rest is thus swung by providing a curved groove in the guideway arrangement and letting a journal interact with this groove.
  • the journal is fastened to a bracket supporting the arm rest.
  • the bracket supporting the arm rest is preferably a U-shaped bracket, which at its first free end is pivotably suspended to the back and which at its second free end supports the cushion of the arm rest.
  • the movement of the arm rest is suitably controlled by letting the groove in the guideway comprise a mainly cardioid groove.
  • the previously mentioned journal used for controlling the swinging of the arm rest is arranged for being pulled out of engagement with the groove. This may take place by providing a resilient pin on the fitting which is fastened to the bracket of the arm rest. By pulling the pin out of engagement with the groove, the arm rest can be swung to a position behind the back or under the back in order to facilitate entering and alighting from the chair. By fastening the pin by means of fittings arranged to be displaced along the bracket, it is possible to allow a vertical adjustment of the arm rest by placing the pin in the desired initial position in the groove which ensures a correct height of the arm rest above the seat in relation to a user.
  • Fig. 1 there is shown a partial view of a chair 1 according to the invention.
  • the chair 1 is shown with the back 2 of the chair in an upright, largely vertical position and with the arm rest 3 of the chair in a largely horizontal position at a distance above the seat 4 of the chair.
  • the chair has a back cushion 5, an arm rest cushion 6', and a seat cushion 6.
  • the cushions are mounted on a back frame 7, an arm rest frame 8, and a seat frame 9, respectively.
  • the back 2 is arranged to be swung relative to the seat 4.
  • the swinging is effected by means of a liner actuator 10 mounted in a bracket 11 which is fastened in a central position on the seat frame 9.
  • the actuator operates a link arrangement 12 for enacting the rearward swinging of the back 2.
  • the link arrangement 12 comprises a first arm 13 which is rotatably suspended to a piston in the actuator 10.
  • the arm 13 is firmly connected to a spindle 14 extending toward both sides of the seat.
  • a second arm 15 At each end of the spindle 14 there is provided a second arm 15.
  • the arm 15 At its end, the arm 15 is provided with a journal 16 engaging a groove 17 in a third arm constituted by a bracket plate 18 at each side of the back 2.
  • a third arm or the bracket plate 18 is pivotably suspended via the journal 19 which is mounted on bracket plates 20 at each side of the seat frame 9. The middle axis of the journals 19 will thus form a centre for the swinging of the back 2.
  • the journal 19 will be placed so that the middle axis is approximately 100 mm before the back and above the seat measured from the person's points of abutment on back and seat when the cushions 5,6 are compressed. This distance of approximately 100 mm corresponds to an adult person. When speaking of a child, this distance to back and seat will be less.
  • the bracket plates 20 are provided with a groove 21 used for controlling the swinging of the arm rest 3.
  • the frame of the arm rest 3 comprises a flatly oval tube 22 on which the arm rest cushion 6' is mounted. Via a fitting 23 according to the invention, the tube 22 is mounted at one end 24 of a U-shaped bracket 25. At its other end, the bracket 25 is pivotably suspended about a journal 26 mounted on the back. The arm rest is thus pivotably suspended relative to the back 2 and is simultaneously pivotable in relation to the seat 4.
  • the fitting will be explained more closely with reference to Fig. 6.
  • Fig. 2 In Fig. 2 is seen the chair of Fig. 1 in a position, where the back 2 is swung about 60° rearwards in relation to its initial vertical position. At the same time, the arm rest is swung through about 30°. It is seen, that the journal 27 by the swinging of the back has passed through the groove 21 and is now situated at the lowermost part of the groove 21 in the bracket 20. From Fig. 2 is also seen, that the actuator 10 which is placed centrally under the chair seat has is piston placed in an extended position, whereby the first link arm 13 has rotated the spindle 14 and thereby pivoted the second link arm 15 forwards. During the forward directed pivoting of the link arm 15, the journal 16 would be displaced in the groove 17.
  • the groove 17 thus has a length causing that the journal 16 is in the shown extreme position, when the chair is completely upright and in its position being swung 60° backwards, which in the shown embodiment is the maximum reclining of the back 2 of the chair. In an intermediate position, the journal 16 will be placed at the other end of the groove 17.
  • the groove 17 thus makes possible the swinging of the back 2 about the journals 19 in such a way that the back 2 continuously extends as a tangent to a circle with centre in the centre of the journal 19.
  • the journal 27 is a resilient pin, which may be pulled out of engagement with the groove 21. This makes possible the swinging of the arm rest about the journal 27, so that the arm rest 3 may be swung to a position behind the back 2 or down under the seat 4 with the purpose of facilitating entering and alighting from the chair 1.
  • FIGs. 7 and 8 views corresponding to Figs. 1 and 2 are shown of the chair 1.
  • the arm rest 3, the bracket 25, and the mounting thereof are omitted, as well as the back cushion 5 is also omitted.
  • a more clear link arrangement 12 is seen, which establishes the connection between the back 2 and the seat 4.
  • 28 indicates a line for the person's point of abutment or face of abutment on the seat when the cushion of the seat is compressed because of the weight of the person.
  • 29 indicates in a similar way a plane for the person's abutment point or abutment face on the back, when the back cushion is compressed because of the weight of the person.
  • 30 indicates a centre of a circle, which is a tangential curve for the positions of the back during the swinging.
  • 31 indicates the distance of the position of the centre 30 above face 28.
  • 32 indicates the distance from the centre 30 to the face 29 of abutment of the back.
  • the distances 31,32 will usually be between 40 and 200 mm, but will preferably be about 100 mm for an adult person.
  • FIG. 3 there is illustrated a vertical position where it is seen that the face 29 extends as a tangent to the circle 33. Thereafter is shown a position for the laying down of the back through 30°, where the plane of the back 29', 29'' and 29''' is still tangent to the circular arc 33. It is noted that in practice a back will be arranged for a reclining through about 60°. A lowering of the back to horizontal position will only occur in rare cases.
  • Fig. 4 shows an arm rest 3 in two different positions above the seat.
  • the height adjustment of the arm rest 3 above the seat 4 thus takes place by loosening the fitting 23' and displacing it along the bracket 25 until the arm rest has a desired initial height above the seat 4.
  • the fitting 23 is loosened and the arm rest is given an approximately horizontal position, whereafter the fitting 23 is fastened again.
  • Fig. 5 the arm rest 3 is seen in an initial position with an approximately vertical orientation and in a position where it is swung through 30° corresponding to a reclining of the back through 60°. It is seen, that the journal 27 during the swinging of the arm rest is displaced from a position in the upper part of the groove 21 to a position in the bottom of the groove by the rearward directed swinging of the back through 60°.
  • the connection between the swingings are illustrated in order to illustrate the cardioid curve 34 corresponding to the shape of the groove 21.
  • the first end 35 of the cardioid curve correspond to the initial position of the journal 27 with the arm rest situated horizontally
  • the second end 36 of the cardioid groove correspond to the position of the journal 27 in the other extreme position with the arm rest swung through 30° and the back swung through 60°.
  • Fig. 6 shows a first embodiment of the previously mentioned fitting 23 (and 23').
  • the assembling fitting 23 comprises a first side plate 37 and a second side plate 38.
  • Each of the side plates are provided with a groove 39 that may receive the sides of the flatly oval tubes used for making the frames of the chair.
  • the second side plate is firmly connected with a conical peg 40.
  • a middle piece 41 having a conical boring 42 is intended for placing over the conical peg 40 and serves as a distance piece, which is adjusted to the width of the flatly oval tubes, so that clamping of the fitting 23 by means of a screw 44 screwed into a thread 43 in the peg 40 ensures that the fitting is fixed on the flatly oval tube.
  • the middle piece is fixed in a rotationally firm position by the engagement of the conical faces.
  • the middle piece 41 is provided with a bracket 48 welded onto it. This may, for example, be intended for a spring biased journal used for controlling the movements of the arm rest.
  • the middle piece 41 can also be provided with a stub whereby it is mounted or welded at the first end 24 of the bracket 25. Hereby the middle piece 41 may serve to fasten the arm rest 3.
  • the grooves 39 will be curved with a curvature corresponding to the curvature in the bottom of the U-shaped bracket 25.
  • the fitting 23 may easily be loosened and may at the same time be given a longitudinal displacement by displacing the fitting along a tube in the groove 39 and simultaneously performing a corresponding adjustment of the rotational position of the middle piece 41 in relation to the side plates 37,38.
  • the fitting may be used in a simple way for mutual fastening of sub-elements in the chair.
  • the fitting 50 shown in Fig. 8 has some parts in common with the fitting 23. These are designated with the same reference symbols.
  • the fitting 50 differs by having grooves 39', which extend arc-shaped. This fitting 50 is thus suitable for being fastened about an arc-shaped tube piece, for example an arm rest bracket 25.
  • Fig. 9 illustrates a further embodiment of a fitting 50. This is provided with a middle piece 41' which at each end has a conical peg 45.
  • the conical peg 45 is intended for engaging conical holes 46 provided in each of the side plates 37,38. By clamping together the side plates 38,39 of the fitting, there is thus established a rotationally firm engagement with the engagement of the pegs 45 in the borings 46.
  • a fitting 60 In Fig. 10 there is illustrated a fitting 60.
  • This fitting has straight grooves 39 in the side plates 37,38.
  • the fitting 60 is, like the fitting 50, clamped together by means of two screwbolts 44.
  • the middle piece In the fitting 60 the middle piece is omitted.
  • a middle piece corresponding to the middle piece 41' illustrated in Fig. 8.
  • the fitting in Fig. 10 comprises an elongated rod 47.
  • the rod 47 serves as alternative fastening of sub-elements instead of fastening to a middle piece. This may be advantageous when sub-elements are to be fastened and which are difficult to place in immediate connection to a frame member or a bracket fastened between the two side plates 37,38.
  • the rod 47 may be used when one has to fasten elements, as for example forehead rests or the like, to the upper part of a chair back.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)
EP99110351A 1998-05-28 1999-05-28 Garnitures et fauteuil destiné à être utilisé avec de telles garnitures Withdrawn EP0960614A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK199800752A DK174580B3 (da) 1998-05-28 1998-05-28 Stol, fortrinsvis körestol, med svingbart ryglæn
DK75298 1998-05-28

Publications (2)

Publication Number Publication Date
EP0960614A2 true EP0960614A2 (fr) 1999-12-01
EP0960614A3 EP0960614A3 (fr) 2000-08-09

Family

ID=8097141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99110351A Withdrawn EP0960614A3 (fr) 1998-05-28 1999-05-28 Garnitures et fauteuil destiné à être utilisé avec de telles garnitures

Country Status (2)

Country Link
EP (1) EP0960614A3 (fr)
DK (2) DK174580B3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1364635A1 (fr) * 2002-05-22 2003-11-26 Vassilli s.r.l. Lit articulé particulier
EP1772131A1 (fr) * 2005-10-10 2007-04-11 Degonda-Rehab S.A. Ensemble de dossier pour ensembles de siège, notamment pour fauteuil roulant ou fauteuil roulant aidant le patient à se mettre debout;fauteils roulants de ces types.
WO2012064596A2 (fr) 2010-11-10 2012-05-18 Invacare Corporation Siège à dossier inclinable
USD688502S1 (en) 2012-09-20 2013-08-27 Steelcase Inc. Arm assembly
USD688907S1 (en) 2012-09-20 2013-09-03 Steelcase Inc. Arm assembly
US9872565B2 (en) 2012-09-20 2018-01-23 Steelcase Inc. Chair arm assembly
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7115696A (fr) * 1971-11-15 1973-05-17
US4372608A (en) * 1979-12-06 1983-02-08 Kabushiki Kaisha Morita Seisakusho Treatment chair
US4793652A (en) * 1987-08-11 1988-12-27 Arbutus Society For Children Orthopaedic seating device
US5044647A (en) * 1989-11-17 1991-09-03 Folio Products, Inc. Stabilized reclining wheelchair seat
US5395160A (en) * 1992-08-13 1995-03-07 A-Dec, Inc. Armrest assembly for a dental chair

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1364635A1 (fr) * 2002-05-22 2003-11-26 Vassilli s.r.l. Lit articulé particulier
EP1772131A1 (fr) * 2005-10-10 2007-04-11 Degonda-Rehab S.A. Ensemble de dossier pour ensembles de siège, notamment pour fauteuil roulant ou fauteuil roulant aidant le patient à se mettre debout;fauteils roulants de ces types.
US7419216B2 (en) 2005-10-10 2008-09-02 Degonda Rehab Sa Seat back unit for a chair, in particular for a wheelchair or a stand-up wheelchair
CH699172B1 (de) * 2005-10-10 2010-01-29 Degonda Rehab Sa Rückenlehneneinheit für Sitzeinrichtungen, insbesondere für Roll- und Aufrichtrollstühle; Rollstuhl und Aufrichtrollstuhl.
EP2637623A4 (fr) * 2010-11-10 2015-12-09 Invacare Corp Siège à dossier inclinable
WO2012064596A2 (fr) 2010-11-10 2012-05-18 Invacare Corporation Siège à dossier inclinable
USD688502S1 (en) 2012-09-20 2013-08-27 Steelcase Inc. Arm assembly
USD688907S1 (en) 2012-09-20 2013-09-03 Steelcase Inc. Arm assembly
USD689315S1 (en) 2012-09-20 2013-09-10 Steelcase Inc. Arm assembly
USD699061S1 (en) 2012-09-20 2014-02-11 Steelcase Inc. Arm assembly
US9872565B2 (en) 2012-09-20 2018-01-23 Steelcase Inc. Chair arm assembly
US10213019B2 (en) 2012-09-20 2019-02-26 Steelcase Inc. Chair arm assembly
US10835041B2 (en) 2012-09-20 2020-11-17 Steelcase Inc. Chair arm assembly
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering

Also Published As

Publication number Publication date
DK75298A (da) 1999-11-29
DK174580B3 (da) 2006-09-25
DK200100230A (da) 2001-02-12
EP0960614A3 (fr) 2000-08-09
DK174580B1 (da) 2003-06-30

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