Adjustable seat back mechanism

Details Adjustable seat back mechanism Adjustable seat back mechanism

1975-09-05

1977-08-23

Frazier, Roy D.

Chairs and seats

Back movement resiliently opposed in operating position

Spring centers back on pivot

297306, 297354, A47C 300

Patent

active

040435920

ABSTRACT:
An adjustable seat back mechanism for a chair of the type such as a secretarial posture chair which includes a vertical support to which a seat back is slidably mounted. The seat back mechanism includes a channel shaped support plate secured to the seat back of the chair, a housing and a latching arrangement carried by the housing for permitting stepwise vertical adjustment of the housing and support plate relative to the vertical support post of the chair. A pivotal connection between a housing and the support plate is accomplished by a resilient arrangement. In one embodiment, the resilient arrangement takes the form of a pair of rubber-like blocks. In an alternative embodiment, the resilient arrangement takes the form of a leaf spring and plate disposed between the housing and support plate. The spring plate, support plate and housing are interconnected by a pin.

REFERENCES:
patent: 1816486 (1931-07-01), Johnson
patent: 2524624 (1950-10-01), Cramer
patent: 2599301 (1952-06-01), Van Buren
patent: 2692012 (1954-10-01), Cramer
patent: 3295888 (1967-01-01), Poland

Affiliated with

Also associated with

Rating

Adjustable seat back mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustable seat back mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable seat back mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2311777