EP0392984A1 - Schaukelvorrichtung für Stühle - Google Patents

Schaukelvorrichtung für Stühle Download PDF

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Publication number
EP0392984A1
EP0392984A1 EP90830039A EP90830039A EP0392984A1 EP 0392984 A1 EP0392984 A1 EP 0392984A1 EP 90830039 A EP90830039 A EP 90830039A EP 90830039 A EP90830039 A EP 90830039A EP 0392984 A1 EP0392984 A1 EP 0392984A1
Authority
EP
European Patent Office
Prior art keywords
stud
oscillating
support
box body
fixed
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Withdrawn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
EP90830039A
Other languages
English (en)
French (fr)
Inventor
Sergio Moreschi
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.)
Cofemo SpA
Original Assignee
Cofemo SpA
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 Cofemo SpA filed Critical Cofemo SpA
Publication of EP0392984A1 publication Critical patent/EP0392984A1/de
Withdrawn legal-status Critical Current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
    • 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
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting chairs
    • 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—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/441—Support 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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/443—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs

Definitions

  • This invention relates in general to chairs or armchairs and more particularly to an oscillating group for chairs and armchairs comprising an oscillating support which carries the seat, pivoted on a fixed box applied to a support base.
  • oscillating groups comprise an oscillating support which carries the elements of seat, seat and backrest, and which is pivoted on a body with fixed support box by means of a stud which passes through coaxial transverse holes provided either in the box body itself or in the oscillating support.
  • the stud is therefore separated either from the support or from the fixed box and for assembly it must be threaded into the holes cor of the two components and lock it at least axially.
  • the assembly is therefore quite complex and laborious and requires a certain degree of precision.
  • the object of this invention is to propose an oscillating group for chairs of the aforementioned type, to be assembled more quickly and more easily and which does not require holes in the two components, oscillating support and fixed box, to be assembled.
  • the box body is provided with saddle seats, that is to say in the open, and on the other side the coupling stud can be fixed beforehand, even by welding, to the oscillating support to result in solidarity.
  • the coupling stud Starting from the stud is to be pushed into the saddle seats of the box where it is stopped radially by a closing plate covering the seats to ensure the coupling between the support and the box, the first being able to oscillate compared to the second as it is necessary.
  • This closure plate is also provided with an abutment shoulder capable of cooperating with a lever integral with the stud and interactive with an adjustment spring to define the oscillating movements of the support and therefore of the seat fixed thereto relative to the box fixed to the base.
  • the group in question includes substantial an oscillating support 10 intended to carry the seat and, with it, the backrest - not shown -, a fixed box body 11 which is applied to a support upright 12 on a base - not shown - and sun stud 13 coupling between the support and the box body with the possibility of the first to oscillate relative to the second.
  • the stud 13 is horizontal and placed transversely in the front part of the two elements 10, 11, while the support upright 12 is placed behind to allow the support 10 to tilt down and back, starting from an almost horizontal position - see Figures 2 and 3 -.
  • the support 10 is composed of two arms 14 and the stud 13 is fixed, by welding or by other means, between the two arms, near their front part.
  • a lever 15 turned backwards, the function of which will be explained below.
  • the box body 11 As for the box body 11, it is provided, near its front part, on the opposite sides, with a pair of saddle seats 16, either in the open, intended to receive and support the stud 13 stopped on the support 10. The boy is also arrested from above and in the saddle seats 16 by a plate 17 placed on the stud itself and fixed by means of screws 17 ′ to the box body 11 so as to close the aforementioned seats.
  • the stud 13 can be mounted in the seats 16 without interposing other means.
  • the execution shown in the drawing is the preferable one, that is to say with the interposition between the stud 13 and the saddle seats 16 on one side and the closure plate 17 on the other side, anti-friction means, for example Teflon or other similar pads.
  • the saddle seats 16 and the opposite surfaces of the closure plate 17, faceted and in any case not cylindrical, and the anti-friction means are formed by two complementary shells 18.18 ′ having a cylindrical internal surface as the stud 13, and an exterior surface with facets such as the surfaces of the seats and of the plate.
  • the anti-friction shells 18 are first mounted in the saddle seats 16, and then the stud 13 is pressed onto the shells 18 in the seats 16, the shells 18 ′ are supported on the goujoun 13 for complé ter the friction bearings and, finally, the closure plate 17 is pressed on the shells 18 ′ by fixing it to the box body 11 as shown in FIG. 5.
  • the assembly is therefore very simple and easy to perform and allows the oscillations of the support thanks to the axis of rotation represented by the stud 13.
  • the lever 15 fixed to the intermediate part of the stud 13 is inserted below an intermediate part of the box body 11 by interacting with a regulating spring 19 coordinated with the box body and the lever in a known manner.
  • the lever has, near the stud 13, towards the front, an abutment rib 13 ′ intended to engage with a shoulder 20 on the inner surface of the plate 17 to limit the maximum inclination behind the support 10 (see Fig. 3), starting from its almost horizontal position (see Fig. 2) defined by the support of the lever 15 below the intermediate part of the box body 11.
  • the regulating spring 19 is placed between the lever 15 and a disc 21 supported on a threaded bush 22 screwed to the lower end of a rod 23, the upper end of which is anchored to the box body 11.
  • a flywheel 24 is to be hooked at 24 ′, with the possibility of turning, to the disc 21 and which has a central polygonal wedging housing 25 with a head 26 having the same polygonal shape and integral with the sleeve 22.
  • the mounting of the spring adjustment device is therefore very simple and quick to perform.

Landscapes

  • Chairs Characterized By Structure (AREA)
EP90830039A 1989-04-13 1990-02-05 Schaukelvorrichtung für Stühle Withdrawn EP0392984A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT697689U 1989-04-13
IT8906976U IT217532Z2 (it) 1989-04-13 1989-04-13 Gruppo oscillante per sedie.

Publications (1)

Publication Number Publication Date
EP0392984A1 true EP0392984A1 (de) 1990-10-17

Family

ID=11122941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90830039A Withdrawn EP0392984A1 (de) 1989-04-13 1990-02-05 Schaukelvorrichtung für Stühle

Country Status (2)

Country Link
EP (1) EP0392984A1 (de)
IT (1) IT217532Z2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0482439A1 (de) * 1990-10-24 1992-04-29 Emilio Ambasz Stuhlträger
EP0507069A1 (de) * 1991-03-01 1992-10-07 Miotto International Company Mechanische Vorrichtung, insbesondere für das Bewegen und selektive Verriegeln von Stühlen
EP0901763A2 (de) * 1997-09-10 1999-03-17 Takano Co., Ltd. Wippvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159400A (en) * 1985-05-10 1985-12-04 Syba Ltd Spring-tilt mechanism for a chair or seat
US4711491A (en) * 1986-06-09 1987-12-08 Jonathan Ginat Swivel tilt mechanism for chair

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159400A (en) * 1985-05-10 1985-12-04 Syba Ltd Spring-tilt mechanism for a chair or seat
US4711491A (en) * 1986-06-09 1987-12-08 Jonathan Ginat Swivel tilt mechanism for chair

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0482439A1 (de) * 1990-10-24 1992-04-29 Emilio Ambasz Stuhlträger
AU647530B2 (en) * 1990-10-24 1994-03-24 Emilio Ambasz Chair seat mounting mechanism
EP0507069A1 (de) * 1991-03-01 1992-10-07 Miotto International Company Mechanische Vorrichtung, insbesondere für das Bewegen und selektive Verriegeln von Stühlen
US5280998A (en) * 1991-03-01 1994-01-25 Miotto & Associates International Limited S.R.L. Mechanical device, particularly for the movement and selective locking of a chair
EP0901763A2 (de) * 1997-09-10 1999-03-17 Takano Co., Ltd. Wippvorrichtung
EP0901763A3 (de) * 1997-09-10 1999-11-10 Takano Co., Ltd. Wippvorrichtung

Also Published As

Publication number Publication date
IT8906976V0 (it) 1989-04-13
IT217532Z2 (it) 1991-12-16

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

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