Chair with adjustable backrest

Chairs and seats – Movable back – Tiltable

Patent

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Details

297367, B60N 202

Patent

active

053971680

ABSTRACT:
A seating apparatus including a frame, a member supported by the frame for movement relative thereto, a ratchet mechanism for affording movement of the member relative to the frame in a first direction from a first extreme position through a range of positions to a second extreme position and for preventing movement of the member relative to the frame in a second direction opposite to the first direction, the ratchet mechanism including a ratchet, and a one-piece pawl including a first portion engageable with the ratchet and a resilient portion for biasing the pawl into engagement with the ratchet, and a release mechanism for completely disengaging the ratchet and the pawl when the member is moved into the second extreme position.

REFERENCES:
patent: 1005064 (1911-10-01), Palmer
patent: 3186253 (1965-06-01), Ramillon
patent: 3698764 (1972-10-01), Geddings
patent: 4354710 (1982-10-01), Rauschenberger
patent: 4640549 (1987-02-01), Yokota
patent: 4709961 (1987-12-01), Hill
patent: 4733913 (1988-03-01), Tateyama
patent: 4930186 (1990-06-01), Linwu
patent: 5169257 (1992-12-01), Liou
Festival Leisure Furniture, Model 4040, Folding Lounge, .COPYRGT.1990 Bemis Mfg. Co.
Lawn Comfort, Model 4030 Antia Folding Lounge, .COPYRGT.1990 Bemis Mfg. Co.
Lawn Comfort, Model 4210 Ancolia Stack Lounge, .COPYRGT.Bemis Mfg. Co., Pamphlet No. O-B-702-2004.
Festival Leisure Furniture, Model 4010 Lounge, .COPYRGT.1990 Bemis Mfg. Co.
Lawn Comfort, Model 4045 Carma Folding Lounge, .COPYRGT.1992 Bemis Mfg. Co., Pamphlet No. O-B-702-2005.
Festival Leisure Furniture, Replacement Parts List for Model Number 4030, Oct. 1991, Pamphlet No. OB-702-8015.
Festival Leisure Furniture, Replacement Parts List for Model Number 4040, Nov. 1992, Pamphlet No. OB-702-8004.
Festival Leisure Furniture, Replacement Parts List for Model Number 4045, Nov. 1992, Pamphlet No. OB-702-8030.
Festival Leisure Furniture, Replacement Parts List for Model Number 4010, Sep. 1990.
Lawn Comfort Instructions for Use-Briza, p. 18.

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