EP0151141A1 - Fauteuil a siege basculable. - Google Patents

Fauteuil a siege basculable.

Info

Publication number
EP0151141A1
EP0151141A1 EP84902525A EP84902525A EP0151141A1 EP 0151141 A1 EP0151141 A1 EP 0151141A1 EP 84902525 A EP84902525 A EP 84902525A EP 84902525 A EP84902525 A EP 84902525A EP 0151141 A1 EP0151141 A1 EP 0151141A1
Authority
EP
European Patent Office
Prior art keywords
seat
lever
votal
arm
chair
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.)
Granted
Application number
EP84902525A
Other languages
German (de)
English (en)
Other versions
EP0151141B1 (fr
Inventor
Paul Andrew Boardman
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT84902525T priority Critical patent/ATE47290T1/de
Publication of EP0151141A1 publication Critical patent/EP0151141A1/fr
Application granted granted Critical
Publication of EP0151141B1 publication Critical patent/EP0151141B1/fr
Expired 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
    • A61G5/14—Standing-up or sitting-down aids

Definitions

  • This invention relates to an armchair having a tiltable seat to provide aid to an occupant in rising from the seat.
  • BACKGROUND ART Chairs having tiltable seats are known in the art.
  • a chair having a seat in which the tilting move ⁇ ment is actuated by spring-loading designed specifically for a particular user is known. It is also known to pro ⁇ vide a chair with a tiltable seat in which the tilting movement is pneumatically or electrically controlled.
  • the present invention seeks to overcome the disadvantages of prior constructions by providing a chair with a tiltable seat which is actuated by a relatively simple mechanism and which utilizes the normal force which an occupant exerts in rising from the seat.
  • the invention provides an armchair having a seat tiltable relative to a fixed frame of the chair to provide aid to an occupant in rising from the chair, the seat being tiltable from a lowered position to a raised position by a lever mechanism provided beneath the seat,
  • lever mechanism is operatively connected to at least one pivotal arm assembly of the chair and is actuated by downward movement of that arm by force exerted thereon by the occupant in rising from the chair.
  • FIGURE 1 is a perspective view of an armchair according to the invention.
  • FIGURE 1A is an exploded view of the main structural com ⁇ ponents of the chair
  • FIGURE 2 is a side view of one side frame member of the chair showing the seat in a til ted and raised posi tion;
  • FIGURE J is a side view similar to FIGURE 2 but showing the seat in a lowered posi tion as normally occupied.
  • FIGURE 4 is a part-sectional perspecti ve view of a pivotal arm assembly incorporating locking means by which the til t ⁇ ing mechanism is held locked relati ve to the fixed frame of the chair;
  • FIGURE 5 is a detailed cross-sectional view of the locking means shown in locked condition.
  • FIGURE 6 is a view similar to FIGURE 5 but showing the locking means in a released condi tion .
  • the armchair 10 is of modular con truction of which the main structural components comprise a pair of similar side frames 12, 14 respecti vely, inter ⁇ connected and spaced apart by a til table sea t pan 16 and a back frame 18, and a pair of pi votal arm assemblies 20, 22 respecti vely, each of which actuates a seat til ting mechanism such as mechanism 24.
  • Side frame 14 comprises a main upright strut 26, a foot 28 integral wi th upright strut 26 and a forwardly projecting support member 30 also integral wi th the upright strut intermediate i ts ends.
  • Side frame 12 is of similar cons ⁇ truction.
  • the back frame 18 is a simple rectangular frame comprising longi tudinal and transverse frame elements 32, 34 and 36, 38 respecti vely.
  • the longi tudinal frame elements are formed wi th fastening locations '1 ' at which the side frames are connected to the back frame by sui table fasteners at fixing locations ' f .
  • the transverse frame element 38 is displac- ed forwardly of the plane containing the other frame elements and thereby provides a step 's ' on which the rear ⁇ most part of the seat pan is supported when the seat is in i ts lowered (substantially horizontal ) posi tion .
  • the back frame is in-filled by a sui table material , which may be at tached to the longi tudinal frame elements as shown in order to provide the chair back 40.
  • the seat pan 16 also comprises a generally rectangular frame comprising longi tudinal and transverse frame elements 42, 44 and 46, 48, respecti vely.
  • the forward transverse frame element 48 is displaced rearwardly and below the longi tudinal frame elements so that the frame in-fill mat ⁇ erial 50 is wrapped over the leading edge of the seat to aid comfort of the user.
  • the forward end of each of the longi tudinal frame elements is furnished wi th a journal bush 52 and 54, respecti vely, by which the leading edge of -4-
  • the seat tilting mechanism will now be described with 5 reference to mechanism 24 associated with side frame 14, it being understood that a similar mechanism is associated with the other side frame 12.
  • Mechanism 24 comprises a main tilting lever 56 which is 10 pivotally mounted at 'P* intermediate its ends to support member 30 of side frame 14.
  • One end of lever 56 carries a stub shaft 58 which engages beneath seat pan longitudinal frame element 44.
  • the stub shaft 58 may be replaced by a rod which connects together the main lifting le ers of both tilting mechanisms and which extends across the seat par 16.
  • the opposite end of main tilting lever 56 is pivotally mounted at 60 to the lower end of a connecting strut 62 of pivotal arm assembly
  • pivotal arm 64 is hinged to the forward end of pivotal arm 64 of the assembly 22 by means of a hinged connection 66.
  • the rearward end of pivotal arm 64 is pivotally mounted to the side frame 14 by pivotal connection 68.
  • a main lifting lever 70 has one of its ends pivotally journalled to the leading edge of the seat frame by means of a pivotal connection to journal
  • the seat tilting mechanism 24 is actuated by pivotal move ⁇ ment of the arm assembly 22 as will now be described.
  • the connecting strut 62 of the arm assembly 22 is of hollo construction and houses a reciprocal actuator push rod 7 which slides in a through bore 80 of the strut 62. Th upper end of push rod 78 abuts the undersurface of a actuating but ton 82 wi thin button recess 84.
  • the lower en of the push rod is formed to provide an inclined face 8 which cooperates wi th detent 88 ha ving a cunieform reces 90 in i ts mid-section .
  • Detent 88 is slidably accommodate wi thin a blind bore 92 extending trans versely o f the s tru adjacent i ts lower end.
  • the detent has a locking nos portion 94 which normally protrudes proud of the mouth o blind bore 92 and engages in a recessed step 96 provided a the forward end of support member 30 thereby to hold th pi votal arm assembly locked to the support member agains pi votal movement .
  • the actuating but ton extends through an aperture 102 pro vi ⁇ ded a t the forward end o f pi votal arm 64 so tha t an exposed portion of the button stands proud of the pi votal arm 64 and is depressed to cause a downward movement of the push rod.
  • strut 62 is formed wi th a stepped portion 104 which seats in an opposi tely stepped portion provided in the lower forward end of support member 30 when the arm assembly is in i ts locked condi tion .
  • the other arm assembly 20 is similarly constructed.
  • the occupant In order to benefit from the aid a user derives in rising from the chair by the tiltable seat, the occupant first depresses the actuating buttons of each arm assembly simultaneously so as to unlock those assemblies. The occupant thereafter actuates the seat tilting mechanism by pushing downwardly on the forward ends of the pivotal arms during rising and also shifts forwardly in the seat. This is a quite natural movement normally affected in rising from an armchair.
  • levers 56 and 70 are interconnected, clockwise rotation of lever 56 also causes pivot 76 to shift relative to fixed pivot 'P' and thus the pivotal movement of lever 56 is accompanied by a generally forward sliding movement of pivot 72 relative to slider 74 during anti-clockwise rotation of lever 70 about pivot 72.
  • the leading edge of the seat simultaneously is raised and moved forwar- dly relative to the support member 30.
  • the scissor- like assembly of levers 56 and 70 is 'opened' when the seat is in its raised and tilted condition.
  • the feet of the side frames have divergent forward facing portions to provide a stable base for the chair. Further, this arrangement allows a user having a walking aid to approach the chair more easily.
  • a one-way damping device 'D' which may be a pneu matic piston and cylinder device is interconnected betwee pivot 54 and 58 thereby to return lowering movement of th seat.
  • th damping device 'D' is a pneumatic piston and cylinder devic the angle of inclination of the raised seat is arranged to b less acute so that end 58 of the main tilting lever travels smaller distance relative to the seat frame.

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)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

Fauteuil (10) possédant un siège (16) pouvant être basculé par rapport à un châssis fixe (12, 14, 18) du siège pour faciliter le mouvement d'un occupant se levant du fauteuil. Le siège peut basculer d'une position abaissée à une position relevée à l'aide d'un mécanisme de levier (24) disposé au-dessous du siège, se caractérisant par le fait que le mécanisme de levier est relié de manière opérationnelle à au moins un assemblage de bras pivotant (20, 22) du fauteuil et est actionné par un mouvement vers le bas de ce bras sous l'effet d'une force exercée par l'occupant se levant du fauteuil.
EP84902525A 1983-06-18 1984-06-18 Fauteuil a siege basculable Expired EP0151141B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84902525T ATE47290T1 (de) 1983-06-18 1984-06-18 Kippmechanismus fuer einen sitz.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838316651A GB8316651D0 (en) 1983-06-18 1983-06-18 Tilting armchair
GB8316651 1983-06-18

Publications (2)

Publication Number Publication Date
EP0151141A1 true EP0151141A1 (fr) 1985-08-14
EP0151141B1 EP0151141B1 (fr) 1989-10-18

Family

ID=10544463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84902525A Expired EP0151141B1 (fr) 1983-06-18 1984-06-18 Fauteuil a siege basculable

Country Status (9)

Country Link
EP (1) EP0151141B1 (fr)
JP (1) JPS60501589A (fr)
AU (1) AU564548B2 (fr)
DE (1) DE3480166D1 (fr)
DK (1) DK74285D0 (fr)
FI (1) FI850635A0 (fr)
GB (1) GB8316651D0 (fr)
NO (1) NO850578L (fr)
WO (1) WO1985000006A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2205230B (en) * 1987-04-24 1990-06-06 Cinnamon Limited J Chair
SE9800593L (sv) * 1998-02-27 1999-09-27 Goeran Linderoth Reglerbart fåtölj- eller stolsätesunderrede avsett att underlätta i- och urstigning från en på detta fastmonterad fåtölj eller stol
JP3830486B2 (ja) * 2002-04-03 2006-10-04 株式会社オージーエー 運動補助具
JP5123714B2 (ja) * 2008-04-07 2013-01-23 株式会社松永製作所 プッシュボタンタイプリクライニング車椅子
FI20105532A0 (fi) 2010-05-14 2010-05-14 Jorma Eerola Istuinjärjestely
US8945093B2 (en) 2012-03-20 2015-02-03 Minimally Invasive Surgical Technologies, Inc. Suction device
NL1039910C2 (nl) 2012-11-23 2014-05-27 Anthonius Johannes Tolboom Opstahulp.
EP3046443A4 (fr) 2013-09-17 2016-09-14 Tamergo Oy Aménagement pour utilisation d'un siège fonctionnel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259427A (en) * 1965-10-18 1966-07-05 Ray S Wiest Leverage seat lifts
FR2529456B1 (fr) * 1982-06-30 1985-07-12 Fralch Dispositif elevateur pour fauteuil roulant et fauteuil roulant en faisant application

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8500006A1 *

Also Published As

Publication number Publication date
FI850635L (fi) 1985-02-15
AU564548B2 (en) 1987-08-13
JPS60501589A (ja) 1985-09-26
DK74285A (da) 1985-02-15
AU3069884A (en) 1985-01-11
GB8316651D0 (en) 1983-07-20
FI850635A0 (fi) 1985-02-15
NO850578L (no) 1985-02-14
WO1985000006A1 (fr) 1985-01-03
EP0151141B1 (fr) 1989-10-18
DE3480166D1 (en) 1989-11-23
DK74285D0 (da) 1985-02-15

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