CA2301933A1 - Chair tilt lock mechanisms - Google Patents

Chair tilt lock mechanisms Download PDF

Info

Publication number
CA2301933A1
CA2301933A1 CA002301933A CA2301933A CA2301933A1 CA 2301933 A1 CA2301933 A1 CA 2301933A1 CA 002301933 A CA002301933 A CA 002301933A CA 2301933 A CA2301933 A CA 2301933A CA 2301933 A1 CA2301933 A1 CA 2301933A1
Authority
CA
Canada
Prior art keywords
locking member
moveable
chair
moveable locking
lever
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
CA002301933A
Other languages
French (fr)
Other versions
CA2301933C (en
Inventor
Ken A. Beggs
Gerald J. Matern
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.)
Leggett and Platt Canada Co
Original Assignee
Northfield Metal Products Ltd
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 Northfield Metal Products Ltd filed Critical Northfield Metal Products Ltd
Publication of CA2301933A1 publication Critical patent/CA2301933A1/en
Application granted granted Critical
Publication of CA2301933C publication Critical patent/CA2301933C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A47C3/03—Locking members
    • 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
    • A47C1/026—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 peg-and-notch or pawl-and-ratchet mechanism

Abstract

A chair seat tilt lock mechanism has a detent to latch an actuating lever in a locked and unlocked position. When the lever is moved to a locking position, a spring urges a moveable locking member toward a locking position, however, the moveable locking member only moves to its locking position when the chair is tilted to properly register the moveable locking member with a fixed locking member. When the lever is moved to an unlocking position, another spring urges the moveable locking member to an unlocking position. The moveable locking member may be a slider which slides under a fixed abutment to lock the chair from tilting. Alternatively, the moveable locking member may be a pivoting arm with a series of openings which may receive the forked end of a tongue in a locked position.
CA002301933A 1999-03-26 2000-03-22 Chair tilt lock mechanisms Expired - Lifetime CA2301933C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/277,484 1999-03-26
US09/277,484 US6378943B1 (en) 1999-03-26 1999-03-26 Chair tilt lock mechanisms

Publications (2)

Publication Number Publication Date
CA2301933A1 true CA2301933A1 (en) 2000-09-26
CA2301933C CA2301933C (en) 2009-01-20

Family

ID=23061082

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002301933A Expired - Lifetime CA2301933C (en) 1999-03-26 2000-03-22 Chair tilt lock mechanisms

Country Status (4)

Country Link
US (1) US6378943B1 (en)
AU (1) AU2243900A (en)
CA (1) CA2301933C (en)
GB (1) GB2348125A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10194641T5 (en) * 2000-10-16 2005-04-07 Kokuyo Co., Ltd. chair
CA2330073A1 (en) * 2001-01-04 2002-07-04 Silhouet-Tone Ltee Clamping device for controlling rotation of a chair about a support shaft of a base frame
NO317791B1 (en) * 2002-01-04 2004-12-13 Stokke As Moving joints
US6880886B2 (en) * 2002-09-12 2005-04-19 Steelcase Development Corporation Combined tension and back stop function for seating unit
US7048335B2 (en) * 2003-06-05 2006-05-23 Steelcase Development Corporation Seating unit with crossbar seat support
US6957864B2 (en) * 2003-10-09 2005-10-25 Su-Ming Chen Chair with a stopping device
US6921134B1 (en) * 2004-01-30 2005-07-26 Tung Yu O.A. Co., Ltd. Apparatus for adjusting inclination of chair backs
WO2006094259A2 (en) * 2005-03-01 2006-09-08 Haworth, Inc. Tilt control mechanism for a chair
US7766426B2 (en) * 2006-08-29 2010-08-03 Ram Machines (1990) Ltd. Tilt controls for chairs
US7753447B2 (en) * 2006-10-13 2010-07-13 L&P Property Management Company Casual control tilt lockout
TWI458455B (en) * 2006-10-13 2014-11-01 L & P Property Management Co Casual control tilt lockout
ITMI20070718A1 (en) * 2007-04-06 2008-10-07 L & P Property Management Co ADJUSTMENT DEVICE FOR ADJUSTABLE AND SIMILAR CHAIRS.
ITMI20070719A1 (en) * 2007-04-06 2008-10-07 L & P Property Management Co TILTING DEVICE FOR A RECLINING SEAT.
US7827921B2 (en) * 2008-04-30 2010-11-09 Ditto Sales, Inc. Tilting nestable table and chair set
US8973997B2 (en) * 2011-07-19 2015-03-10 Skip's Patents, Llc Seat structure with sit-to-stand feature
CN103330403B (en) * 2013-07-19 2016-02-10 湖州奥圣家具有限公司 A kind of adjusting device of swivel chair
US9745066B2 (en) 2015-09-03 2017-08-29 Ami Industries, Inc. Adjustable seat assembly
US10383448B1 (en) 2018-03-28 2019-08-20 Haworth, Inc. Forward tilt assembly for chair seat
CN117241705A (en) 2021-05-05 2023-12-15 斯蒂尔凯斯有限公司 Body support assembly and methods of use and assembly thereof

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB382952A (en) * 1931-06-04 1932-11-10 Frederick William Lanchester Improvements in and relating to multiple ratio transformers
GB382052A (en) 1931-10-10 1932-10-20 Herbert Linwood Sleigh Improvements relating to sliding seats for vehicles and the like
US3480249A (en) 1967-12-11 1969-11-25 Finn Lie Tilting chair construction
US3975050A (en) 1975-05-14 1976-08-17 Mckee Dale P Tilting swivel chair support
SE396542B (en) 1976-02-06 1977-09-26 Kalmar Lens Landsting DEVICE AT THE MOBELUNDERDERNED INTENDED SO-CALL GUNGER UNIT
DE2748680A1 (en) 1977-10-29 1979-05-10 Stoll Kg Christof INCLINATION DEVICE FOR FURNITURE
US4328943A (en) 1979-06-11 1982-05-11 Knoll International, Inc. Control mechanism for a chair or the like
DE8133573U1 (en) 1981-11-17 1983-05-05 Fritz Bauer + Söhne oHG, 8503 Altdorf LOCKABLE LOCKING DEVICE FOR SEAT PARTS OF SEAT FURNITURE
NO159335C (en) 1984-05-08 1988-12-21 Haag A S RELEASABLE VIP MECHANISM FOR CHAIRS OR SIMILAR.
US4938531A (en) 1988-03-23 1990-07-03 Email Limited Adjustment mechanism for chairs
CH676417A5 (en) 1988-07-15 1991-01-31 Giroflex Entwicklungs Ag
US4948198A (en) 1988-10-14 1990-08-14 Leggett & Platt, Incorporated Knee-tilt chair control
US4911501A (en) 1989-06-09 1990-03-27 Harter Corporation Suspension mechanism for connecting chair backs and seats to a pedestal
US4892354A (en) 1989-06-30 1990-01-09 Shepherd Products U.S., Inc. Chair seat tilt control
US5066069A (en) 1990-05-03 1991-11-19 Systems Furniture Company Chair back and seat adjustment mechanism
US5018787A (en) 1990-06-20 1991-05-28 Shepherd Products U.S. Inc. Chair seat tilt control
IT1244070B (en) 1990-10-24 1994-07-05 Emilio Ambasz SUPPORT FOR THE SEAT OF OFFICE ARMCHAIRS OR SIMILAR WITH A DEVICE FOR THE CHANGE IN THE INCLINATION OF THE SESSION.
IE66891B1 (en) 1991-02-15 1996-02-07 Ashfield Eng Co Wexford Ltd An adjustment mechanism for furniture
US5417474A (en) 1993-09-23 1995-05-23 Westinghouse Electric Corporation Tilt control mechanism for chairs
US5464274A (en) 1994-01-13 1995-11-07 Westinghouse Electric Corporation Chair seat tilt adjustment and locking mechanism
US5577807A (en) 1994-06-09 1996-11-26 Steelcase Inc. Adjustable chair actuator
US5762399A (en) 1996-11-13 1998-06-09 Liu; Clement Inclination positioning device for rocking type chairs
US5997087A (en) 1997-08-29 1999-12-07 Northfield Metal Products Ltd. Chair tilt mechanism

Also Published As

Publication number Publication date
GB2348125A (en) 2000-09-27
GB0006965D0 (en) 2000-05-10
US6378943B1 (en) 2002-04-30
CA2301933C (en) 2009-01-20
AU2243900A (en) 2000-09-28

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20200322