Title:
CHAIR
Document Type and Number:
Japanese Patent JPS6045307
Kind Code:
A
Abstract:
The chair has a seat (7) provided with a vertically movable part which is returned to its raised position by a resilient leaf spring (10). The spring also senses the weight of a seated person. A backrest support structure (4) is movable relative to a fixed base structure (3) of the chair. The support structure is biased towards a first operative position by a resilient cartridge (23). The load of the cartridge is adjusted automatically in dependence on the user's weight sensed by the spring, this weight acting to aid in moving the support structure to a second operative position.
Inventors:
ENNIO RITSUTSUOORI
Application Number:
JP14587484A
Publication Date:
March 11, 1985
Filing Date:
July 12, 1984
Export Citation:
Assignee:
CASTELLI SPA
International Classes:
A47C3/025; A47C1/024; A47C3/026; A47C31/12; A47C; (IPC1-7): A47C1/024
Attorney, Agent or Firm:
Aoyama Aoi
Previous Patent: Cloth sells and it is a device.
Next Patent: ENGAGING METAL FITTING FOR ADJUSTABLE BACKREST OR SUPPORT MEMBER OF SEAT OR BED
Next Patent: ENGAGING METAL FITTING FOR ADJUSTABLE BACKREST OR SUPPORT MEMBER OF SEAT OR BED