EP0242433B1 - Stuhl mit federnd verschwenkbarem Sitz und Rücken - Google Patents

Stuhl mit federnd verschwenkbarem Sitz und Rücken Download PDF

Info

Publication number
EP0242433B1
EP0242433B1 EP86113762A EP86113762A EP0242433B1 EP 0242433 B1 EP0242433 B1 EP 0242433B1 EP 86113762 A EP86113762 A EP 86113762A EP 86113762 A EP86113762 A EP 86113762A EP 0242433 B1 EP0242433 B1 EP 0242433B1
Authority
EP
European Patent Office
Prior art keywords
seat
chair
shell
slots
longitudinal slots
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.)
Expired - Lifetime
Application number
EP86113762A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0242433A2 (de
EP0242433A3 (en
Inventor
Willi Hensel
Jürgen Prof. Lange
Reinhard Paulus
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.)
Mauser Waldeck AG
Original Assignee
Mauser Waldeck AG
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 Mauser Waldeck AG filed Critical Mauser Waldeck AG
Priority to AT86113762T priority Critical patent/ATE60201T1/de
Publication of EP0242433A2 publication Critical patent/EP0242433A2/de
Publication of EP0242433A3 publication Critical patent/EP0242433A3/de
Application granted granted Critical
Publication of EP0242433B1 publication Critical patent/EP0242433B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/441—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with adjustable elasticity
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/021—Rocking chairs having elastic frames
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/12—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats with shell-shape seat and back-rest unit, e.g. having arm rests
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/445—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs

Definitions

  • the invention relates to a chair in which the seat and back are simultaneously formed as the supporting structure for this one-piece shell and are provided in the region of the bend of the rear end of the seat to the back of transverse slots starting in the seat direction longitudinal slots in the seat, and that the shell is either arranged to pivot about the front edge of the seat, or the seat of the shell is firmly attached to the chair frame.
  • the rear part of the seat tends to spring downwards so that the front end of the seat rises and thereby presses against the undersides of the thighs of a person sitting on the chair (FIG. 4 of US Pat. No. 4,529,247), which can only be compensated for in part if the seat and back shells are all similar to a support arm about a transverse axis at the front end of the seat is resiliently pivotally attached to the chair frame (claim 16 of US Pat. No. 4,529,247).
  • the object of the invention is to provide a solution which enables equally good elastic resilience between the seat and back of the one-piece shell, as in the known chairs described above, without the disadvantages described above in the transition area between seat and back through the transverse slot of an overall U-shaped slot to have to put up with.
  • transverse slots as waist-like recesses running from the outside inwards to the longitudinal slots or as simple Cross slots are formed so that the area of the shell located between the longitudinal slots running in the direction of the seat continues from the seat into the back.
  • the size of the seat angle opening that can be achieved essentially depends on the length of the longitudinal slots extending in the seat direction.
  • the one-piece shell can either be arranged so as to be resiliently pivotable about the front edge of the seat, or the seat of the shell can be firmly attached to the chair frame, in the latter case practically the entire seat area being available for attachment to the chair frame.
  • a structurally particularly simple design is obtained when the resilient clamping of the one-piece shell on the chair frame by supporting and fastening the front end of the seat on a tra fixed to the chair frame verse is formed such that the entire one-piece shell is resiliently pivotable about the rear edge of the cross member as a transverse axis.
  • the crossmember can be formed by an essentially horizontally arranged plate, so that there is a correspondingly wide contact surface of the shell on the crossmember.
  • the upper rear edge of the plate be rounded, so that there is no indentation in the area of the shell opposite the upper rear edge when the shell is pivoted resiliently about this rear edge, which acts as a pivot axis
  • the rear chair legs which are only slightly downwardly inclined from the crossbeam, branched beneath the seat of the one-piece shell and oriented essentially vertically at the end of the seat.
  • the relevant rear chair legs can be connected to the crossmember in a structurally particularly simple manner and nevertheless do not prevent the one-piece shell from pivoting downward in the region of the seat.
  • the chair frame can also be designed in any other way, for example as a cantilever chair or as a telescopic bogie.
  • the chair according to FIGS. 1 and 2 has two front chair legs 1 formed from tubular profiles, which are connected to one another by a plate-shaped cross member 2. On the traverse 2 are two lower chair legs 3 via a connecting bridge 4 connected to the cross member 2, preferably by welding.
  • the rear lower chair legs 3 initially slope slightly downward from the cross member 2 and are directed essentially downwards at the rear end of the chair.
  • a one-piece, seat 5 and back 6 forming shell 7 made of suitable resilient material such as plywood, plastic or metal is firmly clamped by means of fastening screws or rivets 8, such that the shell 7 as a whole is resiliently pivotable, the part of the seat 5 lying in front of the traverse 2 essentially retains its position.
  • the rear upper edge of the cross member 2 is expediently rounded, so that when the region of the shell 7 lying behind the cross member 2 is pivoted, no notch is produced in the region opposite the rear upper edge of the cross member 2.
  • a waist-like indentation 9 is formed and from the inner end of this indentation 9 incisions or longitudinal slots 10 in the seat 5 of the shell 7, which run forward in the direction of the seat, such that when the back 6 is loaded by itself opposing person the back 6 can pivot about a horizontal axis relative to the seat 5, which extends through the front ends of the longitudinal slots 10.
  • a fork-shaped fastening element 16 is arranged, which is provided with two forwardly extending prongs 17, which are connected to a plate-shaped cross member 18, preferably welded to this cross member 18 in the same manner as in the embodiment according to 1 and 2, the one described there in detail, one-piece seat 5 and back 6 forming shell 7 attached, which is referred to to avoid repetition in full.
  • the suspension behavior is then the same in the previously described chair according to FIGS. 1 and 2.
  • the chair is designed with a so-called cantilever chair frame 23, ie a resilient tubular frame which rests on the floor with a U-shaped base 24, with the legs of the U-shaped base 24 continue in substantially vertical front chair legs 25.
  • the upward-pointing tubes of the front chair legs are then bent twice essentially at right angles to form the supporting structure for a seat and back.
  • the upward tube parts of the front chair legs 25 are only extended by a short piece 26 at the upper end after turning into the horizontal and a cross member 27 is fastened between the tube pieces 26, preferably by welding.
  • the one-piece seat 5 and back 6 forming shell 7, which is described in detail there, is fastened, to which reference is made in its entirety to avoid repetitions.
  • a cantilever chair frame can be provided in this way with a shell-shaped seat and back construction, as is often desired and thereby the particularly advantageous reinforcement of the resilient adjustability between seat 5 and back 6 can be achieved, as is the case with the Embodiment according to FIGS. 1 and 2 is described in detail. It is only to be accepted that, due to the cantilever chair frame, the front end of the seat 5 can shift on a circular path depending on the changing load as a result of a different seating position of the person using the chair, the center of which is approximately at the lower end of the chair legs 25 lies. In cases where the chair in question is not directly associated with other furniture, such as desks or the like, this generally does not matter.

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP86113762A 1986-04-21 1986-10-04 Stuhl mit federnd verschwenkbarem Sitz und Rücken Expired - Lifetime EP0242433B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86113762T ATE60201T1 (de) 1986-04-21 1986-10-04 Stuhl mit federnd verschwenkbarem sitz und ruecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863613381 DE3613381A1 (de) 1986-04-21 1986-04-21 Stuhl mit federnd verschwenkbarem sitz und ruecken
DE3613381 1986-04-21

Publications (3)

Publication Number Publication Date
EP0242433A2 EP0242433A2 (de) 1987-10-28
EP0242433A3 EP0242433A3 (en) 1988-05-04
EP0242433B1 true EP0242433B1 (de) 1991-01-23

Family

ID=6299137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113762A Expired - Lifetime EP0242433B1 (de) 1986-04-21 1986-10-04 Stuhl mit federnd verschwenkbarem Sitz und Rücken

Country Status (6)

Country Link
US (1) US4790595A (enrdf_load_stackoverflow)
EP (1) EP0242433B1 (enrdf_load_stackoverflow)
AT (1) ATE60201T1 (enrdf_load_stackoverflow)
DE (3) DE3613381A1 (enrdf_load_stackoverflow)
ES (1) ES2020914B3 (enrdf_load_stackoverflow)
GR (1) GR3001682T3 (enrdf_load_stackoverflow)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4982997A (en) * 1988-08-04 1991-01-08 Snugli, Inc. Bouncer infant carrier
FR2642945A1 (fr) * 1989-02-10 1990-08-17 Strafor Sa Mecanisme de basculement pour siege de bureau
DE4236834C2 (de) * 1991-11-02 2002-09-05 Gotthard Bresch Sitzmöbel
WO1993018686A1 (en) * 1992-03-17 1993-09-30 American Seating Company Unitary chair with resilient bottom and back
USD344649S (en) 1992-03-17 1994-03-01 American Seating Company Chair spine
USD346282S (en) 1992-03-17 1994-04-26 American Seating Company Side chair
DE4210282C1 (enrdf_load_stackoverflow) * 1992-03-28 1993-04-01 Martin Stoll Gmbh, 7890 Waldshut-Tiengen, De
US5630648A (en) * 1992-08-27 1997-05-20 Harry C. Sweere Dynamic posture chair
KR200154297Y1 (ko) * 1997-04-03 1999-08-02 한무길 등받이용 탄성가동수단을 구비한 고정의자
DE10009264A1 (de) * 2000-02-26 2001-09-13 Martin Woltermann Stuhl mit Sitz, Rücken und Sitzträger bildender federnder Schale
US6471293B2 (en) 2000-11-09 2002-10-29 Michigan Tube Swagers & Fabricators, Inc. Stackable chair with flexible back support
US6820934B2 (en) * 2000-11-09 2004-11-23 Michigan Tube Swagers & Fabricators, Inc. Chair having flexible back support
RU2189771C1 (ru) * 2001-01-29 2002-09-27 Фролов Константин Владимирович Кресло
US6805412B2 (en) * 2001-08-30 2004-10-19 Burgess Furniture Ltd. Stackable chair with flexible back
US6779846B2 (en) * 2002-08-06 2004-08-24 Mity-Lite, Inc. Chair with flexible, resilient back support
FR2850013A1 (fr) * 2003-01-17 2004-07-23 Philippe Rinaldi Chassis de fauteuil roulant amortissant les chocs
ES2282833T3 (es) * 2004-01-26 2007-10-16 Pro-Cord S.P.A. Silla con respaldo inclinable.
NO323205B1 (no) * 2005-04-08 2007-01-22 Opsvik Peter As Stol
US7753447B2 (en) * 2006-10-13 2010-07-13 L&P Property Management Company Casual control tilt lockout
TWI458455B (zh) * 2006-10-13 2014-11-01 L & P Property Management Co 輕便控制傾斜鎖定裝置
US7654617B2 (en) 2008-06-06 2010-02-02 Mity-Lite, Inc. Flexible chair seat
US8029059B2 (en) 2008-12-24 2011-10-04 Mity-Lite, Inc. Folding and stacking mesh chair system
US8322787B2 (en) 2008-12-24 2012-12-04 Mity-Lite, Inc. Clamping joint for a chair
US8317269B2 (en) 2008-12-24 2012-11-27 Mity-Lite, Inc. Mesh stacking chair
US8454093B2 (en) 2008-12-24 2013-06-04 Mity-Lite, Inc. Mesh chair with open-end hoop
DE102009022416A1 (de) * 2009-02-02 2010-08-05 Dózsa-Farkas, Andras Stuhl
USD599127S1 (en) 2009-04-13 2009-09-01 Mity-Lite, Inc. Mesh folding chair
USD648554S1 (en) 2009-11-04 2011-11-15 Mity-Lite, Inc. Mesh stacking chair
USD660612S1 (en) 2010-11-16 2012-05-29 Mity-Lite, Inc. Mesh banquet chair
US20130187422A1 (en) * 2012-01-24 2013-07-25 Ditto Sales, Inc./Versteel Chair having flexibility between seat and back
US9527413B1 (en) 2013-11-12 2016-12-27 The United States Of America As Represented By The Secretary Of The Army Reclining seat to mitigate the effects of mine blast load on spine and lower leg injuries
US9173492B1 (en) * 2014-06-06 2015-11-03 Jacques Fortin Self-reclining chair
EP3160303A1 (en) * 2014-06-30 2017-05-03 Donati S.p.A. Mechanism for changing the tilt of the backrest having regard to the seat of a chair
US9560917B2 (en) 2014-11-26 2017-02-07 Steelcase Inc. Recline adjustment system for chair
US11259637B2 (en) 2015-04-13 2022-03-01 Steelcase Inc. Seating arrangement
EP3282899B1 (en) * 2015-04-13 2021-11-03 Steelcase Inc. Seating arrangement
US10194750B2 (en) 2015-04-13 2019-02-05 Steelcase Inc. Seating arrangement
US10966527B2 (en) 2017-06-09 2021-04-06 Steelcase Inc. Seating arrangement and method of construction
EP3085276B1 (de) 2015-04-20 2017-08-02 Festo AG & Co. KG Stuhl
CA2931229A1 (en) 2015-06-11 2016-12-11 Pro-Cord S.P.A. Flexible chair
USD779221S1 (en) 2015-11-03 2017-02-21 Mity-Lite, Inc. Stacking chair
USD784038S1 (en) 2015-11-03 2017-04-18 Mity-Lite, Inc. Stacking chair
USD779222S1 (en) 2015-11-03 2017-02-21 Mity-Lite, Inc. Stacking chair
US10010178B2 (en) 2015-11-05 2018-07-03 Mity-Lite, Inc. Stacking chair

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GB612747A (enrdf_load_stackoverflow) * 1900-01-01
DE7500152U (de) * 1975-04-30 Wilkhahn Wilkening + Hahne Stuhl
US1912576A (en) * 1931-03-06 1933-06-06 Levon H Gazarian Seat construction
GB476315A (en) * 1935-08-28 1937-12-06 Karl Michaelis Improvements in chairs and like furniture
DE683899C (de) * 1935-11-01 1939-11-18 Andreas Gaal Sitzmoebelgestell aus federndem Werkstoff mit frei tragenden, auf Biegung beanspruchten Seitenteilen
FR1032914A (fr) * 1951-02-20 1953-07-07 Famva Siège arrière, pour enfants, adaptable sur les bicyclettes vélomoteurs et motocyclettes
DE1099706B (de) * 1953-09-21 1961-02-16 Werner Kuester Sitzmoebel mit auf dem Beingestell schwingbar angeordnetem, aus Sitz und Rueckenlehne bestehendem Oberteil
DE1118414B (de) * 1954-08-02 1961-11-30 Theo Mayer Sitzmoebel mit einer auf einem Traggestell befestigten Sitzschale
DE1691799U (de) * 1954-11-02 1955-01-20 Fritz Dr Ing Drabert Sitz mit schwingender rueckenlehne.
CH327658A (de) * 1955-03-04 1958-02-15 Frey Walter Stuhl
AT249308B (de) * 1964-06-23 1966-09-12 Reinhold Adolf Schwingsessel
DE1913042U (de) * 1965-01-14 1965-04-01 Walter Knoll & Co Klappstuhl.
NL7405302A (nl) * 1972-12-16 1975-10-21 Heinz Paulisch Zitmeubel.
US4047757A (en) * 1976-05-03 1977-09-13 Eames Loren W Seating structures with flexible backs
ATE7451T1 (de) * 1980-01-21 1984-06-15 Bernard Curtis Watkin Sitzschalen.
DE3116459A1 (de) * 1981-04-25 1982-11-11 Sitag Sitzmöbel AG, 9430 St. Margrethen Stuhl
US4529247A (en) * 1982-04-15 1985-07-16 Herman Miller, Inc. One-piece shell chair
US4522444A (en) * 1982-09-15 1985-06-11 Charles Pollock Stacking chair
USD289120S (en) 1984-02-17 1987-04-07 Herman Miller, Inc. Chair shell
CA1184108A (en) * 1984-04-09 1985-03-19 David W. Smith Suspension arrangement for a tilting chair

Also Published As

Publication number Publication date
ATE60201T1 (de) 1991-02-15
DE3613381A1 (de) 1987-10-22
US4790595A (en) 1988-12-13
EP0242433A2 (de) 1987-10-28
ES2020914B3 (es) 1991-10-16
DE8610855U1 (de) 1988-11-24
DE3677205D1 (de) 1991-02-28
EP0242433A3 (en) 1988-05-04
DE3613381C2 (enrdf_load_stackoverflow) 1988-02-25
GR3001682T3 (en) 1992-11-23

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