EP0426743B1 - Locking device for chair seats - Google Patents

Locking device for chair seats Download PDF

Info

Publication number
EP0426743B1
EP0426743B1 EP89908886A EP89908886A EP0426743B1 EP 0426743 B1 EP0426743 B1 EP 0426743B1 EP 89908886 A EP89908886 A EP 89908886A EP 89908886 A EP89908886 A EP 89908886A EP 0426743 B1 EP0426743 B1 EP 0426743B1
Authority
EP
European Patent Office
Prior art keywords
lamellae
retainer
clamping
lamallae
locking
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
EP89908886A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0426743A1 (en
Inventor
Tore Lie
Lars Holstensson
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.)
rh form AB
Ring Mekanikk AS
Original Assignee
Ring Mekanikk AS
rh form AB
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 AS, rh form AB filed Critical Ring Mekanikk AS
Priority to AT89908886T priority Critical patent/ATE101986T1/de
Publication of EP0426743A1 publication Critical patent/EP0426743A1/en
Application granted granted Critical
Publication of EP0426743B1 publication Critical patent/EP0426743B1/en
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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/027—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of clamps or friction locking members

Definitions

  • the present invention is related to a locking device for a chair seat with adjustable angle according to the preamble of the claim.
  • the width or the number of lamellae must be greater due to the slot, thereby to achieve the necessary friction surface in relation to the force which can be expected in connection with the clamping.
  • manufacturing of the slots in the lamellae and the holes in the fixed lamellae made necessary an additonal operation in the production.
  • the assembling consumed additional time for bringing the bolt through the holes in the fixed lamellae and the slots for clamping the lamellae against a fixed abutment. No consideration was made as to tolerances in the production in connection with the assembling of the lamellae.
  • FIG. 1 discloses a section along I-I in Fig. 3
  • Fig. 2 discloses a section along II-II in Fig. 1
  • Fig. 3 discloses a view from the right side in Fig. 1.
  • arcuated lamellae 1 are secured to the underside of a chair seat and protrude through a retainer 7 secured to the base of the chair.
  • retaining lamellae In the retainer are arranged retaining lamellae in such a way that all arcuated lamellae 1 are kept between fixed lamellae.
  • the fixed lamellae 2 are provided with recesses to be received by the side edges of the retainer 7 in such a way that the lamellae 2 are captured in the retainer 7.
  • Against both sides of the lamella package are arranged preferably a cup shaped clamping shoe 3, 4 abutting with preferably an annular surface against a retaining lamella 2.
  • a bolt 5 is arranged through a hole in the retainer 7 and connected turnable with the clamping shoe 3 in such a way that the clamping shoe 3 by turning of the bolt 5 may be displaced against or away from the outer lamella 2.
  • the bolt may be secured with a nut (not shown).
  • a clamping shoe 4 is abutting against the lamella 2 whereby a bolt 8 releasably is connected with the clamping shoe 4 and threaded through a hole in the retainer 7.
  • the bolt 8 conveniently is extended to the side of the chair and a operation arm 9 is secured to the end of the bolt 8 suitably in a place for operation by the user. Turning of the operation arm 9 will press the clamping shoe 4 against the lamella 2.
  • the locking device By adjustment of the bolt 5 the locking device may be adjusted upon wear of the lamella and a desired position of the operation arm 9 may be achieved by adjustment. In the same way desired position of the lamellae in the retainer may be adjusted by adjusting the bolts 5 and 8.
  • the preamble of the claim is based on DE 2 523 308, which discloses a device for locking a chair seat at a desired height.
  • the device comprises a plurality of displaceable lamallae, which are connected to the chair seat and extend through a retainer.
  • the retainer comprises fixed friction pads.
  • Clamping means for locking the chair seat includes a lever with an eccentric pressure means. When locking the height of the chair seat, the pressure means is caused to press against the outermost friction pad at one side of the retainer, so that the lamallae are clamped between the friction pads.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Clamps And Clips (AREA)
  • Chairs Characterized By Structure (AREA)
  • Connection Of Plates (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Saccharide Compounds (AREA)
EP89908886A 1988-07-27 1989-07-27 Locking device for chair seats Expired - Lifetime EP0426743B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89908886T ATE101986T1 (de) 1988-07-27 1989-07-27 Verriegelungsanordnung fuer stuhlsitze.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO883319 1988-07-27
NO883319A NO166684C (no) 1988-07-27 1988-07-27 Laaseanordning for stolseter.

Publications (2)

Publication Number Publication Date
EP0426743A1 EP0426743A1 (en) 1991-05-15
EP0426743B1 true EP0426743B1 (en) 1994-03-02

Family

ID=19891105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89908886A Expired - Lifetime EP0426743B1 (en) 1988-07-27 1989-07-27 Locking device for chair seats

Country Status (8)

Country Link
EP (1) EP0426743B1 (fi)
JP (1) JPH0734773B2 (fi)
AU (1) AU4039389A (fi)
DE (1) DE68913539T2 (fi)
DK (1) DK173454B1 (fi)
FI (1) FI90304C (fi)
NO (1) NO166684C (fi)
WO (1) WO1990000871A1 (fi)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246287B (en) * 1990-06-12 1993-10-20 Unit Press Limited Back support pillar for a chair
IE66891B1 (en) * 1991-02-15 1996-02-07 Ashfield Eng Co Wexford Ltd An adjustment mechanism for furniture
DE9400936U1 (de) * 1994-01-20 1994-05-05 Högl Metall GmbH, 96247 Michelau Sitzmöbel, insbesondere Bürodrehstühle
US8454091B2 (en) 2010-06-09 2013-06-04 Groupe Dutailier Inc. Chair adjustment mechanism

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2523308C2 (de) * 1975-05-27 1982-08-12 Konrad 8501 Burgthann Neumüller Sitzmöbel, insbesondere Bürodrehstuhl

Also Published As

Publication number Publication date
NO883319L (no) 1990-01-29
DK4391D0 (da) 1991-01-10
JPH0734773B2 (ja) 1995-04-19
NO883319D0 (no) 1988-07-27
FI90304C (fi) 1994-01-25
NO166684C (no) 1991-08-28
DK173454B1 (da) 2000-11-20
JPH04501217A (ja) 1992-03-05
FI90304B (fi) 1993-10-15
DE68913539T2 (de) 1994-06-09
WO1990000871A1 (en) 1990-02-08
EP0426743A1 (en) 1991-05-15
NO166684B (no) 1991-05-21
AU4039389A (en) 1990-02-19
DE68913539D1 (de) 1994-04-07
DK4391A (da) 1991-01-10
FI910342A0 (fi) 1991-01-23

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