Base structure in particular for a seat having an adjustable bac

Details Base structure in particular for a seat having an adjustable bac Base structure in particular for a seat having an adjustable bac

1986-11-10

1989-02-14

Dorner, Kenneth J.

Chairs and seats

Bottom or back

Framework

297354, A47C 3100

Patent

active

048042250

ABSTRACT:
The structure comprises a tubular substantially helical element (16) which forms in succession a base contour (22) and then a member (24, 26) for connection to the floor on which the seat is placed. The upper end portion (18) of the element has extending therethrough a pivot pin (20) for connection to one of the sides of a backrest (1) and is connected by gussets (38, 40) to the connection member The opposite end portion (52) of the tube is connected to the base contour frame by gussets (30, 32). Any force exerted by the backrest on the upper end portion (18) of the tube tends to unwind the substantially helical element and is thus absorbed by the latter.

REFERENCES:
patent: 1587706 (1926-06-01), Dozier
patent: 2636551 (1953-04-01), Simon
patent: 3069204 (1962-12-01), Vesterholt et al.
patent: 3184227 (1965-05-01), Viall, Sr.
patent: 3248745 (1966-05-01), Gunlock
patent: 3329466 (1967-07-01), Getz et al.
patent: 3501200 (1970-03-01), Ohta
patent: 3656808 (1972-04-01), Chang
patent: 4057214 (1977-11-01), Harder, Jr.
patent: 4188983 (1980-02-01), Graham et al.
patent: 4218091 (1980-08-01), Webster
patent: 4545614 (1985-10-01), Abu-Isa et al.
patent: 4580840 (1986-04-01), Cunningham et al.
patent: 4623114 (1986-11-01), Nishino
patent: 4627660 (1986-12-01), Kon

Affiliated with

Also associated with

Rating

Base structure in particular for a seat having an adjustable bac does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Base structure in particular for a seat having an adjustable bac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Base structure in particular for a seat having an adjustable bac will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1361963