EP0264029A2 - Chaise - Google Patents

Chaise Download PDF

Info

Publication number
EP0264029A2
EP0264029A2 EP87114333A EP87114333A EP0264029A2 EP 0264029 A2 EP0264029 A2 EP 0264029A2 EP 87114333 A EP87114333 A EP 87114333A EP 87114333 A EP87114333 A EP 87114333A EP 0264029 A2 EP0264029 A2 EP 0264029A2
Authority
EP
European Patent Office
Prior art keywords
backrest
cradle
chair
chair according
supported
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
EP87114333A
Other languages
German (de)
English (en)
Other versions
EP0264029A3 (en
EP0264029B1 (fr
Inventor
Hermann Locher
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.)
Giroflex Entwicklungs AG
Original Assignee
Giroflex Entwicklungs 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 Giroflex Entwicklungs AG filed Critical Giroflex Entwicklungs AG
Priority to AT87114333T priority Critical patent/ATE78139T1/de
Publication of EP0264029A2 publication Critical patent/EP0264029A2/fr
Publication of EP0264029A3 publication Critical patent/EP0264029A3/de
Application granted granted Critical
Publication of EP0264029B1 publication Critical patent/EP0264029B1/fr
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
    • 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
    • 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03283—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with fluid springs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/12—Means, e.g. measuring means, for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/126—Means, e.g. measuring means, for adapting chairs, beds or mattresses to the shape or weight of persons for chairs

Definitions

  • the invention relates to a chair, the chair frame is equipped with a seat part and a backrest part and is supported from a support part forming part of the chair foot, which is provided with a cantilevered support arm.
  • Chairs of this type are known in various designs.
  • the seat part In order to increase the seating comfort, it is known to design the seat part to be pivotable relative to the supporting part, a counterforce being exerted with a spring element to support the body weight of the seated person. If the seating comfort is to be increased further, in particular in that a "relax" position can be assumed by the seated person, it is also known to design the back part to be pivotable relative to the seat part. In this case, too, it is necessary to generate a counterforce to the forces exerted by the seated person on this part by means of one or more correspondingly arranged spring elements.
  • the invention relates to chairs in which at least the seat part is pivotally supported with respect to the supporting part, and it is the object of the invention to further develop a chair of the type described in the introduction in such a way that the forces to be exerted by the spring element or the spring elements are kept small and thus smaller spring elements can be used at a correspondingly lower cost. Another object is to keep the volume of the chair frame lying under the seat part small, thereby avoiding the bulky appearance of known chairs.
  • pairs of straps are pivotally articulated on the support arm of the support part with straps arranged on the knee side and backrest side, which form a parallelogram suspension for a cradle, on which the seat part and the backrest part are supported. Because the forces exerted on the seat part and the backrest part are at least partially balanced by the cradle, it was achieved that only a part of the forces occurring has to be absorbed by the spring element or the spring elements.
  • Fig. 1 denotes a support part of a base frame (not shown) of a chair, to which a support arm 2 extending slightly obliquely against the knee side of the chair is attached.
  • a support arm 2 extending slightly obliquely against the knee side of the chair is attached.
  • two swivel joints 3, 4 are arranged, to which a pair of plates with plates 5, 6 is articulated.
  • the tabs 5, 6 are pivotally connected to a cradle 9 via further swivel joints 7, 8.
  • the chair has a seat part 10 and a backrest part 11. These two parts can either be rigid or articulated together.
  • the seat part 10 is fastened to the cradle 9 in the vicinity of the knee-side bracket 6.
  • the backrest part is supported on the cradle 9 via a linkage 12.
  • the linkage 12 is composed of several parts, namely an extension arm 15, which forms part of the backrest-side tab 5, a push rod 16, which is connected to the extension arm 15 by means of a swivel joint 17, a slide 20, to which the push rod 16 is connected a hinge 18 and which is guided on the cradle 9, and a backrest strut 21 which is rotatably supported on the one hand by means of a fixed connection 19 on the backrest part 11 and on the other hand is rotatably supported on the slide 20 via the hinge 18.
  • a spring element 25 is mounted on the cradle 9, one end 26 of which is connected to the slide 20 and the other end 27 is fastened to the cradle 9.
  • the spring element 25 can be a compression spring or a gas spring.
  • one end 26 is a piston rod supported on the slide 20 and the other end 27 is a cylinder attached to the cradle. Since the spring element 25 only moves parallel to the cradle 9, the ends 26, 27 can be firmly connected to the cradle.
  • Fig. 2 the so-called "relax" position of the chair is shown.
  • the force exerted on the slide 20 by the backrest part 11 via the backrest strut 21 causes the slide 20 on the cradle 9 to act against the force of the spring element 25 moved towards the knee side of the chair.
  • the straps 5, 6 of the pair of straps are pivoted against the knee side of the chair.
  • the cradle 9, which is also articulated on the tabs 5, 6, is also displaced in the direction of the knee side of the chair, but this path is smaller since the slide 20 is displaced by the extension arm 15.
  • the difference between these two displacement paths is the path by which the spring element 25 is compressed and thereby exerts a counterforce.
  • the spring element 25 can be dimensioned correspondingly smaller.
  • the two parts 10, 11 are a single fiber-reinforced plastic shell.
  • This has a bending joint 30 on the knee side, which can be provided with a progressive spring force, for example.
  • a further flexible joint 31 is provided between the seat part 10 and the backrest part 11, the spring characteristic of which can also be selected accordingly. If necessary, the flexible joint 31 can also be designed with more than one bend.
  • Another bending joint 32 can be provided in the backrest part 11.
  • a plastic shell can be replaced by a shell construction made of metal or it can be hinged seat and backrest parts be used.
  • the knee-side bending joint 30 can be replaced by a swivel joint, for example by a torsion spring element, as can the bending joint 31.
  • the torsion spring other springs can also be used, but problems with regard to the space conditions can arise here.
  • the support arm 2 of the support part 1 is designed as a double arm. For this reason, two pairs of plates with plates 5, 6 are also arranged.
  • the cradle 9 is in the form of a hollow cylinder, e.g. a square tube. This has a slot 35 on the underside, in which the slide 20 consisting of plates 36, 37 is held together by a connecting bolt (not shown).
  • the piston rod 26 is attached to the slide 20 and the cylinder 27 of the spring element 25 is attached to the knee-side end of the cradle 9.
  • An actuating device 38 serves to release or block the spring element 25. From FIG. 4 it can be seen that two backrest struts 21 are articulated on the swivel joint 18.
  • a fastening plate 40 is provided on the knee side for fastening the parts 10, 11 designed as a plastic shell.
  • the tab 6, like the tab 5, is formed with an extension arm 34.
  • a swivel joint 28 is provided at the free end of the extension arm 34.
  • the swivel joint 28 and the swivel joint 17 of the extension arm 15 are connected to a connecting bracket 33.
  • the extension arms 15 and 34 and the connecting plate 33 thus form a parallelogram arrangement with the cradle 9, which is parallel to the parallelogram arrangement of the plates 5 and 6 and the cradle 9.
  • the support arm 2 of the support frame 1 is designed as a double arm (not visible). Accordingly, two pairs of tabs with tabs 5, 6 are arranged. Between the arms of the double arm of the support arm 2, the cradle 9 is in the form of a hollow cylinder, e.g. a square tube. This has a slot 35 on the underside, in which the slide 20 consisting of plates 36, 37 is held together by a connecting bolt (not shown).
  • the piston rod 26 is attached to the slide 20 and the cylinder 27 of the spring element 25 is attached to the knee-side end of the cradle 9.
  • An actuating device 38 serves to release or block the spring element 18.
  • the tabs 5, 6 with their extension arms 16, 34 form two-armed levers, the bearing point between the arms of which forms the joints 7, 8 connected to the cradle 9.
  • the connecting strap 33 connected via the joints 17, 28 to the two-armed levers 5, 15 and 6, 34 is shown in broken lines in FIG. 6 in order to make the drawing clearer.
  • the connecting tab 33 is expediently opposite arched, that is, concave against the seat part 10.
  • the connecting tab 33 can be punched out of a strip material and provided with a bore at its ends.
  • the chair frame described has the advantage that some of the forces exerted by a seated person are inherent, i.e. be balanced by a weighing device, which is formed by the pairs of plates 5, 6 and the cradle 9. As a result, the spring element 25 can be designed smaller, so that it can be accommodated in the cradle 9 itself. Because of this balancing of the forces, there is no need to adjust the spring element in relation to the respective weight of the seated person. If this person sits on the chair without leaning, practically the entire weight is balanced by this device. Only at the transition to the "relax" position is part of this weight absorbed by the spring element 25.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Finger-Pressure Massage (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Pyridine Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
EP87114333A 1986-10-14 1987-10-01 Chaise Expired - Lifetime EP0264029B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87114333T ATE78139T1 (de) 1986-10-14 1987-10-01 Stuhl.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH4124/86A CH672237A5 (en) 1986-10-14 1986-10-14 Relaxing chair
CH4124/86 1986-10-14
CH2589/87 1987-07-08
CH2589/87A CH674127A5 (en) 1986-10-14 1987-07-08 Relaxing chair

Publications (3)

Publication Number Publication Date
EP0264029A2 true EP0264029A2 (fr) 1988-04-20
EP0264029A3 EP0264029A3 (en) 1988-07-06
EP0264029B1 EP0264029B1 (fr) 1992-07-15

Family

ID=25690857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114333A Expired - Lifetime EP0264029B1 (fr) 1986-10-14 1987-10-01 Chaise

Country Status (14)

Country Link
US (1) US4790598A (fr)
EP (1) EP0264029B1 (fr)
JP (2) JPS63102714A (fr)
AT (1) ATE78139T1 (fr)
AU (1) AU600310B2 (fr)
BR (1) BR8705450A (fr)
CA (1) CA1294524C (fr)
CH (2) CH672237A5 (fr)
DE (1) DE3780399D1 (fr)
DK (1) DK535887A (fr)
FI (1) FI87978C (fr)
NO (1) NO874262L (fr)
PT (1) PT85903B (fr)
ZA (1) ZA877507B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821042A1 (de) * 1988-06-22 1989-12-28 Buerositzmoebelfabrik Friedric Stuhl, insbesondere buerostuhl
WO1995026152A1 (fr) * 1994-03-25 1995-10-05 Simon Desanta Chaise
WO1997003590A1 (fr) * 1995-07-20 1997-02-06 Röder, Peter Chaise, notamment pour une rangee de chaises

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5015032A (en) * 1989-07-26 1991-05-14 Felling Gerald J Chaise lounge with adjustable canopy
JPH05507213A (ja) * 1990-03-20 1993-10-21 フェリング、ジェラルド、ジェイ． 調節できるキャノピーを持つ椅子
DE9115439U1 (de) * 1991-12-12 1992-05-07 Pürner, Christoph, 8590 Marktredwitz Aufhängevorrichtung für ein Sitz- oder Ruhemöbel
EP0763991A4 (fr) * 1994-06-10 2000-10-04 Haworth Inc Fauteuil ergonomique
US6191886B1 (en) * 1998-08-24 2001-02-20 Vutec Corp. Video projection screen assembly
DE19916593C2 (de) * 1999-04-13 2003-06-12 Fast Ag Grenchen Fluggastsitz
CA2482133C (fr) * 2004-09-14 2010-01-05 Broda Enterprises Inc. Fauteuil coulissant avec mecanisme autobloquant
US7802846B2 (en) * 2007-03-19 2010-09-28 Pierre Bellefleur Reclining chair and chassis, frame and kit therefor
US20090315376A1 (en) * 2008-06-19 2009-12-24 Takuro Nishiwaki Reclinable chair with adjustable parallel locking gas spring device
CA2950118C (fr) * 2008-12-12 2019-04-23 Formway Furniture Limited Chaise, support et composants
USD653591S1 (en) 2010-12-08 2012-02-07 Broda Enterprises, Inc. Modular chair
US9084708B2 (en) 2010-12-08 2015-07-21 Broda Enterprises Inc. Modular chair
DE202012002288U1 (de) 2012-03-08 2012-05-11 Walter Knoll Ag & Co. Kg Funktionsstuhl
US9560917B2 (en) 2014-11-26 2017-02-07 Steelcase Inc. Recline adjustment system for chair
US10021984B2 (en) 2015-04-13 2018-07-17 Steelcase Inc. Seating arrangement
US10194750B2 (en) 2015-04-13 2019-02-05 Steelcase Inc. Seating arrangement
US11259637B2 (en) 2015-04-13 2022-03-01 Steelcase Inc. Seating arrangement
US10966527B2 (en) 2017-06-09 2021-04-06 Steelcase Inc. Seating arrangement and method of construction

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615497A (en) * 1949-05-26 1952-10-28 Anton Lorenz Reclining article of furniture
US2942647A (en) * 1957-08-26 1960-06-28 Ferro Stamping Co Slideless seat support and adjusting device
US3765720A (en) * 1971-07-02 1973-10-16 Nissan Motor Position adjustable support mechanism
FR2434599A1 (fr) * 1978-08-30 1980-03-28 Grosfillex Sarl Siege pour gradins de stade
CH645795A5 (en) * 1979-07-23 1984-10-31 Drabert Soehne Chair, in particular visual display unit chair
US4586749A (en) * 1983-08-05 1986-05-06 Takara Company, New York, Inc. Barber/beauty chair
US4632450A (en) * 1984-11-21 1986-12-30 Cambridge Technologies, Inc. Convertible wheelchair/litter
DE8614185U1 (de) * 1986-05-26 1986-07-17 Drabert Söhne GmbH & Co, 4950 Minden Stuhl

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821042A1 (de) * 1988-06-22 1989-12-28 Buerositzmoebelfabrik Friedric Stuhl, insbesondere buerostuhl
WO1995026152A1 (fr) * 1994-03-25 1995-10-05 Simon Desanta Chaise
US5664835A (en) * 1994-03-25 1997-09-09 Peter Roeder Chair
WO1997003590A1 (fr) * 1995-07-20 1997-02-06 Röder, Peter Chaise, notamment pour une rangee de chaises

Also Published As

Publication number Publication date
BR8705450A (pt) 1988-05-24
FI874519A0 (fi) 1987-10-13
AU600310B2 (en) 1990-08-09
CH672237A5 (en) 1989-11-15
ZA877507B (en) 1988-04-15
FI87978B (fi) 1992-12-15
PT85903B (pt) 1993-07-30
FI87978C (fi) 1993-03-25
PT85903A (pt) 1988-11-30
DK535887D0 (da) 1987-10-13
JPS63102714A (ja) 1988-05-07
DK535887A (da) 1988-04-15
CA1294524C (fr) 1992-01-21
AU7924187A (en) 1988-04-21
ATE78139T1 (de) 1992-08-15
JPS63111811A (ja) 1988-05-17
DE3780399D1 (de) 1992-08-20
NO874262L (no) 1988-04-15
CH674127A5 (en) 1990-05-15
FI874519A7 (fi) 1988-04-15
NO874262D0 (no) 1987-10-13
EP0264029A3 (en) 1988-07-06
EP0264029B1 (fr) 1992-07-15
US4790598A (en) 1988-12-13

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