[go: up one dir, main page]

EP0796577A1 - Sessel mit neigender Rückenlehne - Google Patents

Sessel mit neigender Rückenlehne Download PDF

Info

Publication number
EP0796577A1
EP0796577A1 EP97420046A EP97420046A EP0796577A1 EP 0796577 A1 EP0796577 A1 EP 0796577A1 EP 97420046 A EP97420046 A EP 97420046A EP 97420046 A EP97420046 A EP 97420046A EP 0796577 A1 EP0796577 A1 EP 0796577A1
Authority
EP
European Patent Office
Prior art keywords
backrest
seat
arms
armchair
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.)
Withdrawn
Application number
EP97420046A
Other languages
English (en)
French (fr)
Inventor
Henri Massonnet
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.)
Stamp SA
Original Assignee
Stamp SA
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 Stamp SA filed Critical Stamp SA
Publication of EP0796577A1 publication Critical patent/EP0796577A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C5/00—Chairs of special materials
    • A47C5/12—Chairs of special materials of plastics, with or without reinforcement

Definitions

  • the invention relates to an armchair. It relates in particular, but not exclusively, to a one-piece chair produced by injection molding of a plastic material such as polypropylene or equivalent.
  • the armchairs of the prior art thus produced are relatively rigid and their comfort is generally not excellent.
  • their backrest has no flexibility, so that prolonged station in a chair of this kind can be painful.
  • Patent application EP-A1-0 305 303 proposes to connect the backrest to rigid arms forming armrests by an elastic element while the backrest is elastic. This construction allows a certain angular movement of the upper part of the backrest, which improves the comfort of the chair thus obtained, but the lower part of the backrest which is connected to the seat of the chair cannot be moved and forms a rigid part against which bear the user's lumbar vertebrae.
  • patent application GB-A-2 282 755 discloses an armchair, the back of which is supported by two deformable arms. In the event of a violent effort on the backrest, the arms can be broken, which is dangerous and leads to the replacement of the chair.
  • the invention aims to solve these problems and proposes a armchair more comfortable and more resistant than those of the prior art.
  • the invention relates to an armchair comprising a seat and a back, said back being supported by two arms or armrests, fixed on the sides of said seat, and capable of deforming, in their zone of connection to said back, so that said backrest is capable of pivoting around a substantially horizontal axis, characterized in that it comprises posts for resuming the forces of said arms on said seat, said arms being provided at their lower edge with stiffening ribs which extend respectively by a stiffening rib of each of said force recovery posts.
  • the position of the backrest relative to the seat can be adapted by the user by a simple pressure exerted with his back on the backrest while the effort recovery posts contribute to the strength of the chair.
  • the angle of the backrest opening relative to the seat is increased.
  • the user leans forward while the lower back is pressing against the back of the chair this back pivots so that it remains in contact at least partially with the back of the user .
  • the stiffening ribs of the arms which extend towards the force recovery posts provide effective support for the backrest while allowing it to pivot about a substantially horizontal axis.
  • each arm or armrest located between the corresponding force recovery post and the back has a curved shape centered on the pivot axis. This shape provides a simple way to pivot the backrest around the axis.
  • stiffening rib of the lower edge of each arm can be extended by a stiffening rib formed on the lower edge of the backrest. This stiffening rib on the lower edge of the backrest prevents untimely deformation of the backrest in a direction perpendicular to its pivot axis.
  • each arm or armrest is provided, at its upper edge, with a stiffening rib.
  • the stiffening rib (s) may or may have come from the material with the arm, the armrest, the backrest or the post to which it (s) belongs or belong.
  • the invention can be used advantageously for the production of an armchair in which the arms, the backrest, the seat and the said rib (s) are molded in a piece of semi-rigid plastic material, that is to say say when the chair is in one piece.
  • the armchair 1 of FIG. 1 comprises a seat 2, supported by four legs 3, 4, 5 and 6, and a backrest 7 connected to the side of the seat 2 by two armrests 8 and 9, in the form of arms, fixed on the sides of the seat 2.
  • the backrest 7 is supported by the two arms 8 and 9, that is to say is not directly connected to the seat 2, and each arm or armrest is able to deform in its connection area, respectively 8a and 9a, in the backrest 7, so that the backrest is capable of pivoting about a substantially horizontal axis XX '.
  • the arms 8 and 9 are respectively supported by two posts 10 and 11, for taking up the forces, allowing the armrests 8 and 9 to support the file 7, without excessive deformation, over their entire length.
  • the posts 10 and 11 are integral with both the arms or armrests 8 and 9 and the seat 2.
  • the arms 8 and 9 are provided, at their respective lower edges 8b and 9b, with stiffening ribs 12 and 13 which are extend by a stiffening rib of each of the posts 10 and 11.
  • the chair 1 is made in a single piece of polypropylene or any other semi-rigid material having suitable mechanical properties.
  • the possibility of pivoting the backrest 7 makes the chair 1 particularly comfortable by allowing a user to obtain a desired angular position of the backrest 7 relative to the seat 2 by pressing more or less either on the upper part of the backrest 7 with its shoulders, either on its lower part with the lower back.
  • the extension of the ribs 12 and 13 by the rib 15 on the posts 10 and 11 gives the chair good mechanical stability, which increases its solidity and reduces the risk of the backrest oscillating 7.
  • the chair is shown in solid lines in its rest position, that is to say when the user exerts no effort on the backrest 7. If the user seated in the chair pushes the backrest 7 with its shoulders, it exerts a force represented by the arrow F which causes the backrest 7 to reach, by pivoting around the axis XX ', the position represented in dotted lines in which the value of the opening angle of the backrest relative to the seat, that is to say the angle defined between the backrest and the seat, has increased relative to its value in its rest position.
  • each arm or armrest, respectively 8 b and 9 b situated between the corresponding post 10 or 11 and the backrest 7 has a curved shape centered on the axis XX '.
  • the curved shape of the edges 8 b and 9 b allows the armrests 8 or 9 to be deformed in their connection area 8 a or 9 a .
  • the ribs 12 and 13 oppose this deformation, so that they give the connection between the armrests 8 and 9 and the backrest 7 sufficient stability avoiding oscillating movements in the backrest which would be unpleasant for the user. 'user.
  • the ribs 12 and 13 are extended by a rib 14 formed on the lower edge of the backrest 7, this rib giving the latter good rigidity in a direction perpendicular to its pivot axis XX '.
  • Each of the ribs 12, 13 and 14 is generally perpendicular to the main surface of the part of the chair to which it belongs, that is to say substantially horizontal, which allows it to fulfill its stiffening function.
  • each stiffening rib 12 and 13 is extended on the one hand by the stiffening rib 14 of the backrest and, on the other hand, by one of the stiffening ribs, for example 15, effort recovery posts 10 and 11. Thanks to these different stiffening ribs, the chair 1 of the invention has good mechanical stability properties.
  • each arm or armrest 8 and 9 is provided on its upper edge with a stiffening rib, respectively 16 and 17, extending in a substantially horizontal direction.
  • the function of these ribs 16 and 17 is threefold: they allow on the one hand to create a support surface for the elbows or forearms of the user sufficiently wide not to be uncomfortable; they also provide, in their portion adjacent connecting zones 8 and 9a, to resist pivotal movement of the back support 7 relative to the axis tending to oppose the deformation of arms 8 and 9; they finally make it possible to oppose the deformation of the arms 8 and 9 in a direction substantially parallel to the axis XX ', for example in the case where a user exerts on the arms 8 and 9 an effort tending to spread them apart. one of the other.
  • the stiffening ribs that the chair of the invention comprises extend from the arms or armrests of the backrest or posts outwards, so that they do not risk injuring a user who is sitting in the chair since it does not offer a sharp angle seen from the inside of the chair.
  • the production of the armchair of the invention is particularly easy since the armchair is made in one piece, the arms or armrests, the backrest, the seat, the ribs and the feet being injection molded. a semi-rigid plastic material.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
EP97420046A 1996-03-19 1997-03-19 Sessel mit neigender Rückenlehne Withdrawn EP0796577A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9603644A FR2746279B1 (fr) 1996-03-19 1996-03-19 Fauteuil a dossier pivotant
FR9603644 1996-03-19

Publications (1)

Publication Number Publication Date
EP0796577A1 true EP0796577A1 (de) 1997-09-24

Family

ID=9490484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97420046A Withdrawn EP0796577A1 (de) 1996-03-19 1997-03-19 Sessel mit neigender Rückenlehne

Country Status (2)

Country Link
EP (1) EP0796577A1 (de)
FR (1) FR2746279B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1839532A1 (de) * 2006-03-28 2007-10-03 Kokuyo Furniture Co., Ltd. Sitz
WO2009144703A1 (en) * 2008-04-14 2009-12-03 Keter Plastic Ltd. An artificial panel, a method for manufacturing same and furniture articles therefrom
US20220248853A1 (en) * 2019-06-11 2022-08-11 Herman Miller, Inc. Chair

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535911A1 (de) * 1975-08-12 1977-02-24 Pag Presswerk Ag Stuhl
GB2282755A (en) * 1993-10-13 1995-04-19 Westinghouse Electric Corp Single piece chair shell

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535911A1 (de) * 1975-08-12 1977-02-24 Pag Presswerk Ag Stuhl
GB2282755A (en) * 1993-10-13 1995-04-19 Westinghouse Electric Corp Single piece chair shell

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1839532A1 (de) * 2006-03-28 2007-10-03 Kokuyo Furniture Co., Ltd. Sitz
US7654616B2 (en) 2006-03-28 2010-02-02 Kokuyo Furniture Co., Ltd. Chair having integrally formed back frame and seat frame
WO2009144703A1 (en) * 2008-04-14 2009-12-03 Keter Plastic Ltd. An artificial panel, a method for manufacturing same and furniture articles therefrom
CN102083609A (zh) * 2008-04-14 2011-06-01 凯特尔塑料有限公司 人造板、制造人造板和由此的家具制品的方法
US9820574B2 (en) 2008-04-14 2017-11-21 Keter Plastic Ltd. Artificial panel, a method for manufacturing same and furniture articles therefrom
US10561243B2 (en) 2008-04-14 2020-02-18 Keter Plastic Ltd. Artificial panel, a method for manufacturing same and furniture articles therefrom
US10617210B2 (en) 2008-04-14 2020-04-14 Keter Plastic Ltd. Artificial panel, a method for manufacturing same and furniture articles therefrom
US10709243B2 (en) 2008-04-14 2020-07-14 Keter Plastic Ltd. Artificial panel, a method for manufacturing same and furniture articles therefrom
US20220248853A1 (en) * 2019-06-11 2022-08-11 Herman Miller, Inc. Chair
US11969094B2 (en) * 2019-06-11 2024-04-30 MillerKnoll, Inc. Chair

Also Published As

Publication number Publication date
FR2746279A1 (fr) 1997-09-26
FR2746279B1 (fr) 1998-05-07

Similar Documents

Publication Publication Date Title
EP0364309B1 (de) Einschaliger Sessel aus extrudiertem Kunststoff, welcher Kompakt stapelbar ist
EP0258156B1 (de) Klappstuhl mit verstellbarer Rückenlehne und Fussstütze
FR2676632A1 (fr) Coquille pour siege articule.
LU81935A1 (fr) Chaise
EP0670241B1 (de) Sitz mit umklappbarer Armlehne
CH680639A5 (de)
WO1996004823A1 (fr) Nouvelle structure pour sieges de bureaux
EP0305303A1 (de) Sessel mit flexibler Rückenlehne
EP0731657B1 (de) Stuhl mit einer rückenlehne, die im zusammengeklappten zustand als schützende abdeckung dient
EP0796577A1 (de) Sessel mit neigender Rückenlehne
BE817904A (fr) Siege a dossier.
EP0022039B1 (de) Verstellbarer Stuhl
EP0399893A1 (de) Synchrone Verstellvorrichtung für die Neigung von Rückenlehne und Sitz eines Sessels
FR2491312A1 (fr) Siege a accoudoir effacable
EP0444106B1 (de) Armlehnenanordnung für toiletten
FR3069765B1 (fr) Siege ergonomique reglable
EP0028992B1 (de) Anordnung eines neigungsverstellbaren Elementes auf einem Träger, insbesondere einer Rückenlehne auf einem Fussgestell, und Kindersitz, bei dem die Anordnung verwendet wird
FR2641453A1 (fr) Fauteuil de repos
CA1136536A (fr) Siege reglable
FR2629399A1 (fr) Siege anatomique, notamment pour vehicule automobile
FR2729837A1 (fr) Siege a supports de genoux et de cuisses distincts, destine notamment aux usagers travaillant en bureau
EP0357524B1 (de) Ruhemöbel, wie zum Beispiel Stuhl, Sitz oder Bett, mit Sitz und Rückenlehne
FR2517945A1 (fr) Perfectionnements aux chaises
FR2843533A1 (fr) Accotoir ou accoudoir reglable pour fauteuils et plus generalement pour sieges
FR2502924A3 (fr) Siege inclinable perfectionne pour enfants

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB GR IT

17P Request for examination filed

Effective date: 19971106

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 20000131