EP0570550A1 - Siege convertible - Google Patents

Siege convertible

Info

Publication number
EP0570550A1
EP0570550A1 EP19920923020 EP92923020A EP0570550A1 EP 0570550 A1 EP0570550 A1 EP 0570550A1 EP 19920923020 EP19920923020 EP 19920923020 EP 92923020 A EP92923020 A EP 92923020A EP 0570550 A1 EP0570550 A1 EP 0570550A1
Authority
EP
European Patent Office
Prior art keywords
knee
chair
seat
lever
backrest
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Withdrawn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
EP19920923020
Other languages
German (de)
English (en)
Inventor
Josef Huser
Keesjan Klant
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
Publication of EP0570550A1 publication Critical patent/EP0570550A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C13/00—Convertible chairs, stools or benches
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C9/00—Stools for specified purposes
    • A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects
    • A47C9/005—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects with forwardly inclined seat, e.g. with a knee-support

Definitions

  • the invention relates to a chair according to the preamble of claim 1.
  • a chair with a forward-sloping seat and a knee part that prevents slipping forward is much better.
  • Such a chair usually does not have a backrest because the upper body and its own muscles remain in the vertical balanced position.
  • this knee chair is used relatively rarely, especially in the office area, because it also has certain disadvantages. Among other things, these consist of the fact that there may be problems with the knee load if you sit on it for a long time. The knee part can also have a disruptive effect if you frequently have to get up from the chair or move around with it.
  • a change also has the advantage that the type of seat can be optimally adapted to the corresponding work.
  • the knee chair position can be used for quieter work, e.g. Writing, reading, EDP etc.) and the usual sitting position for more flexible work Cz.B. Classify files, work that requires getting up often, etc.).
  • At least one construction is that when moving in the knee position the seat is only tilted forward and two knee supports that are normally under the seat are folded forward.
  • the advantage of this solution is that you do not have to get up to switch.
  • the seat in the knee position is very far forward in comparison to the standard knee chairs and therefore very close to the knee parts, ie not optimal.
  • a further forward shifting of the knee parts is hardly possible with this construction if the chair is built on a 5-star base, because otherwise the focus of the person would come too far forward.
  • the object of the invention is to propose a convertible chair which does not have any of these disadvantages. This means that the following conditions must be sought:
  • Changing the chair from the sitting position to the knee position and vice versa a) takes place while sitting, i.e. without getting up from the chair.
  • Fig. 1 chair in sitting position
  • Fig. 2 Chair in the knee position
  • Fig. 3 Exploded view of the chair in the sitting position
  • Fig. 4 Backrest attached to the back of the seat
  • Fig. 5 Seat part on rail guide
  • Fig. 6 Knee part on rail guide
  • Fig. 7 Knee part foldable in the longitudinal axis Moving the chair as described in claim 1 is made possible by the fact that the seat part, the knee part and the backrest are connected to the foot column by a lever construction (for example a castor star base with gas lift height adjustment) as follows:
  • Block 4 is fixed with. connected to the foot column.
  • the pair of plates 5, which is firmly connected to one another, is connected to the block 4 by the axis 7.
  • the lever 6 is connected to the axis 9 with this.
  • the seat part 1 (provided below with a U-shaped arrow) is fastened with the axis 8 to the pair of plates 5 and with the axis 10 to the lever 6.
  • the backrest 3 is fastened to the pair of plates 5 with the axis 11, the knee part 2 to the axis 14.
  • the seat part 1 lies against the pair of plates 5.
  • the knee part 2 is fastened to the support 17 and is pulled upwards by this with the lever 16 which is connected to the lever 6.
  • the seat 1 moves backwards until it strikes the lever 6.
  • the backrest 3 is moved downwards by the pair of plates 5, being pivoted in with the lever 13 which is fastened to the block 4, the knee part 2 is driven downwards by the lever 16 via support 17 until the bolt 15 reaches a stop on Plate pair 5 is pending.
  • the chair can be moved over by means of a handle attached to the side of the pair of plates 5 by moving it downwards or upwards. Shifting the upper body significantly supports this movement.
  • the two positions of the chair are fixed by a snap or a lock.
  • the backrest 1 is connected to the joint 3 on the seat part 2. In the sitting position, it is pushed forward by the lever 4 and the stop 5, while in the knee position it is pulled by the spring 6 to the stop 7 and thereby moved backwards.
  • Another way to move the seat is with a rail guide instead of the lever construction.
  • the seat part 1 is firmly connected to the rails 2, which are guided by the rollers 3.
  • the space under the chair also allows a rail guide to move the knee part.
  • the knee part 1 is firmly connected to the rails 2, which are guided by the rollers 3.
  • This construction enables optimal legroom.
  • the two knee parts 2a are firmly connected to the hinge pieces 18. These hinge pieces are pivotally attached to the knee support 17a. In the unfolded state (knee position), the knee parts 2a move into the horizontal position by gravity or supported by springs. When changing over to the sitting position, they are moved upwards by the support 17a, where they are in contact with the pair of plates 2, forward in the middle and therefore laterally folded back on the outer sides.

Landscapes

  • Special Chairs (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

Le siège présenté peut être transformé en un siège permettant à l'utilisateur de s'agenouiller sans qu'il ait à se lever dudit siège. Il suffit à cet effet, de faire pivoter la paire de plaques (5) autour de l'axe (7) vers l'arrière. L'assise (1) qui est également fixée au levier (6) bascule vers l'arrière. Simultanément, la partie destinée à soutenir les genoux (2) est basculée vers l'avant au moyen du levier (16). Le dossier (3) est abaissé, tout en étant mis dans la bonne position d'inclinaison au moyen du levier (13).
EP19920923020 1991-11-11 1992-11-11 Siege convertible Withdrawn EP0570550A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH338691 1991-11-11
CH3386/91 1991-11-11

Publications (1)

Publication Number Publication Date
EP0570550A1 true EP0570550A1 (fr) 1993-11-24

Family

ID=4254845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920923020 Withdrawn EP0570550A1 (fr) 1991-11-11 1992-11-11 Siege convertible

Country Status (2)

Country Link
EP (1) EP0570550A1 (fr)
WO (1) WO1993009701A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013124718A1 (fr) 2012-02-21 2013-08-29 Human Plus S.C. Chaise à double fonction

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667278A (en) * 1995-12-27 1997-09-16 Li; Chun Hsien Combinational chair, recliner and typing stool
CA2302063C (fr) * 2000-03-23 2010-08-17 Cke Technologies Inc. Chaise ergonomique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578114A (en) * 1950-08-16 1951-12-11 Fred C Webber Bleacher back
US3669493A (en) * 1970-11-03 1972-06-13 J Harding Vowles Chair
NO153913C (no) * 1983-07-08 1986-06-18 Hans Chr Mengshoel Anordning ved stol.
DE3623224A1 (de) * 1986-07-10 1988-01-21 Moll Helmuth Stuhlartige sitzvorrichtung
SE456885B (sv) * 1987-05-22 1988-11-14 Hoeganaesmoebler Ab Anordning vid en arbetsstol eller liknande som aer avsedd att anvaendas i tvaa skilda sittstaellningar
DE4143538C2 (de) * 1991-02-22 1995-07-13 Georg Engel Verwandlungssitz zur wahlweisen Benutzung als Stuhl mit Armlehnen oder als Kniesitz

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9309701A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013124718A1 (fr) 2012-02-21 2013-08-29 Human Plus S.C. Chaise à double fonction
US9345332B2 (en) 2012-02-21 2016-05-24 Human Plus S.C. Dual functional chair

Also Published As

Publication number Publication date
WO1993009701A1 (fr) 1993-05-27

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