Global Patent Index - EP 0698358 A3

EP 0698358 A3 19960619 - A chair tilting mechanism

Title (en)

A chair tilting mechanism

Title (de)

Kippmechanismus für einen Stuhl

Title (fr)

Mécanisme à bascule pour chaise

Publication

EP 0698358 A3 19960619 (EN)

Application

EP 95650029 A 19950817

Priority

  • IE 940648 A 19940817
  • IE 950126 A 19950215

Abstract (en)

[origin: IES950622A2] A chair mechanism (1) has a seat support (11) and a backrest support (50) which can pivot about pins on a fixed support (2). They are interconnected so that their tilting is synchronised. A lock (30) locks the seat support (11) at a certain tilt position with respect to the fixed support (2) and therefore in turn locks the backrest support. The lock (30) has lock members (36,37) with ridges or teeth which interengage to provide positive mechanical locking. The teeth are configured so that tilt bias which is provided by a bias unit (15) urges the teeth into tighter locking engagement once they are engaged. Therefore, accidental release of the actuator does not cause the lock to become released and therefore jerking actions of parts of the chair are avoided. For releasing of the lock, it is necessary for the user to urge parts of the chair against the tilt bias, thereby causing release surfaces on the teeth to slide with respect to each other to urge the locking member (37) away from the locking member (36). The slopes of the surfaces on the teeth are important as they provide for tighter mechanical engagement under the tilt bias and for disengagement when the user urges a chair part against the tilt bias.

IPC 1-7

A47C 1/026; A47C 3/026

IPC 8 full level

A47C 1/026 (2006.01); A47C 1/032 (2006.01); A47C 7/56 (2006.01)

CPC (source: EP US)

A47C 1/03238 (2013.01 - EP); A47C 1/03255 (2013.01 - EP); A47C 1/03272 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

GB 2292313 A 19960221; GB 2292313 B 19980923; GB 9516872 D0 19951018; AU 2857095 A 19960229; CA 2156372 A1 19960218; EP 0698358 A2 19960228; EP 0698358 A3 19960619; IE 80799 B1 19990224; IE 950623 A1 19960221; IE S65982 B2 19951129; IE S950622 A2 19951129

DOCDB simple family (application)

GB 9516872 A 19950817; AU 2857095 A 19950817; CA 2156372 A 19950817; EP 95650029 A 19950817; IE 950623 A 19950817; IE S950622 A 19950817