WO1992020264A1 - Chair mechanism - Google Patents

Chair mechanism Download PDF

Info

Publication number
WO1992020264A1
WO1992020264A1 PCT/NO1992/000092 NO9200092W WO9220264A1 WO 1992020264 A1 WO1992020264 A1 WO 1992020264A1 NO 9200092 W NO9200092 W NO 9200092W WO 9220264 A1 WO9220264 A1 WO 9220264A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
pipe
chair
seat
mount
Prior art date
Application number
PCT/NO1992/000092
Other languages
French (fr)
Inventor
Tore Lie
Original Assignee
Ring Mekanikk A.S.
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 Ring Mekanikk A.S. filed Critical Ring Mekanikk A.S.
Priority to DE69223962T priority Critical patent/DE69223962T2/en
Priority to KR1019930703430A priority patent/KR100210132B1/en
Priority to JP4509302A priority patent/JPH06511398A/en
Priority to CA002103041A priority patent/CA2103041C/en
Priority to EP92909817A priority patent/EP0588811B1/en
Publication of WO1992020264A1 publication Critical patent/WO1992020264A1/en

Links

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

Definitions

  • the present invention is related to a chair mechanism for biased tilting movement between the seat and the base column, connected respectively with the seat portion and the frame of the chair mechanism.
  • tilting mechanisms or chair mechanisms comprising torsion springs
  • tilting mechanisms or chair mechanisms comprising torsion springs
  • tilting mechanisms or chair mechanisms comprising torsion springs
  • tilting mechanisms or chair mechanisms comprising torsion springs
  • torsion springs have been used extensibly especially for office chairs and such and also have proved to be satisfactory with their small dimensions, simplicity in adjust ⁇ ment and good reliability. Partly this is achieved by a recti ⁇ linear torsion spring, usually clamped in both ends which then can be turned in relation to each other and the spring being surrounded by pipes.
  • Fig. 1 schematically the chair mechanism according to the present invention in a top view
  • Fig. 2 discloses a front view
  • Fig. 3 discloses a ground view
  • Fig. 1 schematically the chair mechanism according to the present invention in a top view
  • Fig. 2 discloses a front view
  • Fig. 3 discloses a ground view
  • Fig. 1 schematically the chair mechanism according to the present invention in a top view
  • Fig. 2 discloses a front view
  • Fig. 3 discloses a ground view
  • a torsion spring 1 having a square cross section, is arranged within and at both ends secured to a pipe, respectively
  • One of the pipes 6 is connected with a stop arm 7 abutting against a seat mount 2.
  • a means of a suitable grip the spring pressure of the torsion spring can be adjusted between the mount 2 and the arm 7.
  • the other pipe 5 is directly connected with the frame 3 mounted to the column 4 of the chair.
  • the seat mount 2 is arranged to be journalled around the other pipe 5.
  • the force path is according to the above described details, to be found from the seat mount 2, through the arm 7 and to the pipe 6, further from hear through the torsion spring 1 to the other pipe 5 and to the column or fundament of the chair through the frame 3.

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

Chair mount for a spring activated tilting movement between a seat and a turning column of a chair, being connected respectively with the seat mount (2) and the frame (3) of the mechanism, where a rectilinear torsion spring (1) preferably having a square cross section, in each end being secured to pipes (5, 6) surrounding the spring (1), where the second pipe (5) extending from one end of the spring (1) at least to beyond the middle of the spring (1), at which point the second pipe (5) is connected with the frame (3) which again is connected with the turning column (4) of the chair, the first pipe (6) extending from the other end of the spring (1) to near the second pipe (5) and here being connected with one end of a stop arm (7) of which the other end with a prestress is abutting against the seat mount of the chair by intersection of an adjustable bolt, and further that the seat mount (2) being turnably journalled around the second pipe (5).

Description

Chair Mechanism
The present invention is related to a chair mechanism for biased tilting movement between the seat and the base column, connected respectively with the seat portion and the frame of the chair mechanism.
Throughout the passed years tilting mechanisms or chair mechanisms comprising torsion springs, have been used extensibly especially for office chairs and such and also have proved to be satisfactory with their small dimensions, simplicity in adjust¬ ment and good reliability. Partly this is achieved by a recti¬ linear torsion spring, usually clamped in both ends which then can be turned in relation to each other and the spring being surrounded by pipes.
With the present invention is found that this structure can be substantially simplified and especially the same advantageous are achieved by use of only one pipe, as defined by the features stated in the claim.
The drawing discloses in Fig. 1 schematically the chair mechanism according to the present invention in a top view, Fig. 2 discloses a front view, Fig. 3 discloses a ground view and Fig.
4 discloses a side view of the chair mechanism according to the present invention.
A torsion spring 1 having a square cross section, is arranged within and at both ends secured to a pipe, respectively
5 and 6. One of the pipes 6 is connected with a stop arm 7 abutting against a seat mount 2. By a means of a suitable grip the spring pressure of the torsion spring can be adjusted between the mount 2 and the arm 7. The other pipe 5 is directly connected with the frame 3 mounted to the column 4 of the chair. The seat mount 2 is arranged to be journalled around the other pipe 5.
The force path is according to the above described details, to be found from the seat mount 2, through the arm 7 and to the pipe 6, further from hear through the torsion spring 1 to the other pipe 5 and to the column or fundament of the chair through the frame 3.

Claims

Patent Claim
5 Chair mount for a spring activated tilting moveme between a seat and a turning column of a chair, being connect respectively with the seat mount (2) and the frame (3) of t mechanism, where a rectilinear torsion spring (1) preferab having a square cross section, in each end being secured to pip o (5, 6) surrounding the spring (1), CHARACTERIZED IN the seco pipe (5) extending from one end of the spring (1) at least t beyond the middle of the spring (1), at which point the seco pipe (5) is connected with the frame (3) which again is connecte with the turning column (4) of the chair, the first pipe (6 s extending from the other end of the spring (1) to near the secon pipe (5) and here being connected with one end of a stop arm (7 of which the other end with a prestress is abutting against th seat mount of the chair by intersection of an adjustable bolt and further that the seat mount (2) being turnably journalle o around the second pipe (5).
PCT/NO1992/000092 1991-05-15 1992-05-14 Chair mechanism WO1992020264A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE69223962T DE69223962T2 (en) 1991-05-15 1992-05-14 CHAIR MECHANISM
KR1019930703430A KR100210132B1 (en) 1991-05-15 1992-05-14 Chair mechanism
JP4509302A JPH06511398A (en) 1991-05-15 1992-05-14 chair mechanism
CA002103041A CA2103041C (en) 1991-05-15 1992-05-14 Chair mechanism
EP92909817A EP0588811B1 (en) 1991-05-15 1992-05-14 Chair mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO911899 1991-05-15
NO911899A NO176864C (en) 1991-05-15 1991-05-15 Chair fittings for spring-mounted tilt fittings between a chair's seat and swivel column

Publications (1)

Publication Number Publication Date
WO1992020264A1 true WO1992020264A1 (en) 1992-11-26

Family

ID=19894154

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1992/000092 WO1992020264A1 (en) 1991-05-15 1992-05-14 Chair mechanism

Country Status (8)

Country Link
EP (1) EP0588811B1 (en)
JP (1) JPH06511398A (en)
KR (1) KR100210132B1 (en)
AU (1) AU1698092A (en)
CA (1) CA2103041C (en)
DE (1) DE69223962T2 (en)
NO (1) NO176864C (en)
WO (1) WO1992020264A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO125337B (en) * 1967-02-16 1972-08-28 Spilka As
DE2219724A1 (en) * 1971-04-22 1972-12-07 Upholstery & Furniture Hardwar Chair component
SE390598B (en) * 1972-05-31 1977-01-03 F Lie SUSPENSION DEVICE FOR A TILPABLE PART ON A CHAIR
US4235408A (en) * 1978-02-27 1980-11-25 Knoll International, Inc. Swivel-chair frame
NO872794L (en) * 1987-07-03 1989-01-04 Ring Mekanikk As VIP FITTING FOR A CHAIR, ISAER OFFICE CHAIR.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5835091U (en) * 1981-08-31 1983-03-07 積水樹脂株式会社 Cap for pipes and rods

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO125337B (en) * 1967-02-16 1972-08-28 Spilka As
DE2219724A1 (en) * 1971-04-22 1972-12-07 Upholstery & Furniture Hardwar Chair component
SE390598B (en) * 1972-05-31 1977-01-03 F Lie SUSPENSION DEVICE FOR A TILPABLE PART ON A CHAIR
US4235408A (en) * 1978-02-27 1980-11-25 Knoll International, Inc. Swivel-chair frame
NO872794L (en) * 1987-07-03 1989-01-04 Ring Mekanikk As VIP FITTING FOR A CHAIR, ISAER OFFICE CHAIR.

Also Published As

Publication number Publication date
KR100210132B1 (en) 1999-07-15
DE69223962D1 (en) 1998-02-12
DE69223962T2 (en) 1998-07-02
NO176864C (en) 1995-06-14
NO176864B (en) 1995-03-06
CA2103041C (en) 1999-10-05
JPH06511398A (en) 1994-12-22
NO911899D0 (en) 1991-05-15
AU1698092A (en) 1992-12-30
NO911899L (en) 1992-11-16
EP0588811B1 (en) 1998-01-07
CA2103041A1 (en) 1992-11-16
EP0588811A1 (en) 1994-03-30

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