Chairs and seats – Collapsible chair; i.e. – relatively folding bottom – back,... – With folding armrest
Patent
1998-05-28
1999-01-05
Cuomo, Peter M.
Chairs and seats
Collapsible chair; i.e., relatively folding bottom, back,...
With folding armrest
297 27, 297 46, A47C 400
Patent
active
058554092
ABSTRACT:
A foldable chair frame includes a backrest frame, a seat frame and an armrest member pivoted to the backrest frame, a front leg frame pivoted to the seat frame and the armrest member, and a rear leg frame disposed adjacent to the seat frame and pivoted to the armrest member. A rail member is mounted on the rear leg frame and is formed with an elongated guiding groove which opens toward the seat frame and which has an upper portion with a lateral locking section. A slide member projects transversely from the seat frame and extends rotatably into the guiding groove, and is movable slidably along the guiding groove to couple pivotally the seat frame and the rear leg frame. A releasable locking unit is mounted on the rail member at the upper portion of the guiding groove. The locking unit permits movement of the slide member into the locking section when unfolding the chair frame, and arrests movement of the slide member out of the locking section so as to position the chair frame in the unfolded state. The locking unit is operable to release the slide member from the locking section to permit downward sliding movement of the slide member along the guiding groove when folding the chair frame.
REFERENCES:
patent: 2638970 (1953-05-01), Harber
patent: 2649138 (1953-08-01), Rechler
patent: 4768825 (1988-09-01), Quinlan
patent: 4792181 (1988-12-01), Giochon
patent: 4898421 (1990-02-01), Brunn
Barfield Anthony D.
Cuomo Peter M.
Shin Yen Enterprise Co. Ltd.
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