WO1986006596A1 - Chaise avec support ajustable des pieds - Google Patents

Chaise avec support ajustable des pieds Download PDF

Info

Publication number
WO1986006596A1
WO1986006596A1 PCT/DK1986/000049 DK8600049W WO8606596A1 WO 1986006596 A1 WO1986006596 A1 WO 1986006596A1 DK 8600049 W DK8600049 W DK 8600049W WO 8606596 A1 WO8606596 A1 WO 8606596A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
foot support
underframe
chair
secured
Prior art date
Application number
PCT/DK1986/000049
Other languages
English (en)
Inventor
Steen O^/STERGAARD
Original Assignee
Bramin Mo^/Bler 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 Bramin Mo^/Bler A/S filed Critical Bramin Mo^/Bler A/S
Publication of WO1986006596A1 publication Critical patent/WO1986006596A1/fr

Links

Classifications

    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest

Definitions

  • the invention concerns a chair with an underframe, which is rotatably connected with a back, which is in turn rota ⁇ tably connected with a seat, which is additionally rota ⁇ tably connected at its front end with a foot support, which is so connected with the underframe by control means that the angle formed by the foot support with the seat varies by displacement of the seat-
  • the object of the invention is to provide a chair of the present type which, by simple and inexpensive means, enab ⁇ les the provision of such balancing of the forces that the various chair members can be retained with good stability in any desired position without using special locking means,
  • the chair is so shaped that the control means are formed by a control rod secured to the foot support and slidable in a slide sleeve rotatably secured to the underframe.
  • This structure makes it possible to vary the influence which a pressure against the foot support exerts on the mutual position of the chair members, from virtually zero in the fuuly outwardly pivoted position to an ever increasing influence as the foot support approach- es its inwardly pivoted, substantially vertical position in which it is no longer affected by the weight of a seated person's legs.
  • Claim 2 specifies measures to obtain the intended effect.
  • the embodiment of the chair as defined in claim 3 provides the advantage that the weight of a seated person and the pressure against the back affect the seat for displace ⁇ ment in opposite directions so that the oppositely acting forces are balanced in all relative seat and back positions.
  • fig. 1 is a side view of an embodiment of the chair frame
  • fig. 2 shows a detail, illustrating on an enlarged scale control means instrumental in controlling the relative po ⁇ sitions of the chair members in different positions there ⁇ of.
  • an underframe is shown in broken lines, compris- ing a ring-shaped foot 10, two wide, plate-shaped legs 11 forming together a V, and two side members 12 forming arm rests and serving to attach the movable members of the chair.
  • These members comprise a back frame 13, a seat frame 14 and a foot support frame 15.
  • the back frame 13 has at each side a forwardly extending arm 16 which is rotatably connected with the side members of the underframe by a pi ⁇ vot 17.
  • the back frame and the seat frame 14 are rotatably interconnected by a hinge 18, and the seat frame and the foot support frame 15 are rotatably interconnected by a hinge 19.
  • the foot support frame 15 is firmly connected with two con ⁇ trol rods 20 which are disposed at each side of the frame and form an obtuse angle with the frame and extend oblique- ly upwards and backwards in the position shown in fig. 1.
  • Each control rod extends through and is slidable in a slide sleeve 21 which is rotatably secured to the side member 12 - 3 -
  • a pivot 22 consists of a low friction material such as e.g. polyamide.
  • a fitting 23 is attached to the underside of the seat frame 14 at each side of it and adjacent to its front end, and a slide sleeve 24 of the same type as the sleeve 21 is rotatably secured to the fitting 23 by a pivot 25.
  • the slide sleeve 24 surrounds and is slidable on a slide rod 26 which is secured to the side member 12 at both ends and forms an acute angle with the seat frame 14.
  • the corresponding positions of the front end of the slide sleeve 24 on the slide rod 26 are marked with the corresponding numerals 0 to 8 on this rod, and the sleeve is shown in broken lines in position 7.
  • the control rod 20 is displaced in the slide sleeve 21, which rotates at the same time about the pivot 22.
  • the various positions of the centre lines of the control rod and the foot support frame corresponding to the marked positions of the hinge axis are shown by lines 28 and 29, respectively, and also the corresponding positions marked 0 to 8 of the free end of the control rod are shown.
  • the slide sleeve 21 is shown in broken lines in position 7.
  • the transmission ratio is defined as the ratio of a gi- ven foot support pivot angle to the corresponding displace ⁇ ment of the hinge, it will be seen that this transmission ratio decreases as the members move from position 0 to po ⁇ sition 8. Thus, in all positions, there will be a good ba ⁇ lance of the forces influencing the mutual position of the various members so that there is no need for locking means to retain the members in any desired position.
  • the func ⁇ tional relation between angular rotation and displacement can be changed by changing the relative location of pivot axes, control rod and slide rod and of the angles formed by these rods with the other chair members.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

Une chaise comprend une charpente inférieure (10, 11, 12) dans laquelle est rotativement monté un dossier connecté par une charnière à un siège, et un support des pieds (15) connecté par une charnière à la partie antérieure du siège. Le support des pieds est fermement relié à une barre de commande (20) coulissable dans un manchon coulissant (21) fixé de façon rotative à la charpente inférieure de sorte que le support des pieds puisse pivoter vers l'extérieur et vers l'intérieur lorsque l'on change la position du siège. L'agencement géométrique est tel qu'une pression exercée perpendiculairement au support des pieds ne peut pas modifier la position du siège lorsque le support des pieds est dans sa position extrême extérieure. Un autre manchon coulissable (24) fixé au siège entoure une barre coulissante inclinée (26) fixée à la charpente inférieure, de sorte que le siège s'élève lorsque celle-ci se déplace vers l'avant et s'abaisse lorsque celle-ci se déplace vers l'arrière. On obtient ainsi, dans toutes les positions de la chaise un bon équilibre entre les forces orientées en directions opposées et qui influencent les positions relatives des divers éléments.
PCT/DK1986/000049 1985-05-08 1986-05-07 Chaise avec support ajustable des pieds WO1986006596A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK2036/85 1985-05-08
DK203685A DK203685A (da) 1985-05-08 1985-05-08 Stol

Publications (1)

Publication Number Publication Date
WO1986006596A1 true WO1986006596A1 (fr) 1986-11-20

Family

ID=8109620

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1986/000049 WO1986006596A1 (fr) 1985-05-08 1986-05-07 Chaise avec support ajustable des pieds

Country Status (4)

Country Link
EP (1) EP0224517A1 (fr)
AU (1) AU5905586A (fr)
DK (1) DK203685A (fr)
WO (1) WO1986006596A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU602392B2 (en) * 1987-05-13 1990-10-11 Ferdinand Lusch Gmbh & Co. Kg. Reclining chair
US5246266A (en) * 1990-09-18 1993-09-21 Chairworks Taiwan Limited Chair

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478769A (en) * 1944-09-07 1949-08-09 Lorenz Anton Reclining article of furniture
US2714922A (en) * 1952-10-17 1955-08-09 Joseph L Mckibban Adjustable reclining chair
US2927630A (en) * 1957-04-29 1960-03-08 Peitz & Co Stanzwerk Adjustable reclining chairs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478769A (en) * 1944-09-07 1949-08-09 Lorenz Anton Reclining article of furniture
US2714922A (en) * 1952-10-17 1955-08-09 Joseph L Mckibban Adjustable reclining chair
US2927630A (en) * 1957-04-29 1960-03-08 Peitz & Co Stanzwerk Adjustable reclining chairs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU602392B2 (en) * 1987-05-13 1990-10-11 Ferdinand Lusch Gmbh & Co. Kg. Reclining chair
US5246266A (en) * 1990-09-18 1993-09-21 Chairworks Taiwan Limited Chair

Also Published As

Publication number Publication date
DK203685A (da) 1986-11-09
AU5905586A (en) 1986-12-04
EP0224517A1 (fr) 1987-06-10
DK203685D0 (da) 1985-05-08

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