Chairs and seats – Collapsible chair; i.e. – relatively folding bottom – back,...
Patent
1999-01-12
1999-10-12
Cranmer, Laurie K.
Chairs and seats
Collapsible chair; i.e., relatively folding bottom, back,...
297 31, 297 39, A47C 400
Patent
active
059645008
ABSTRACT:
A foldable chair includes a U-shaped seat support frame including two seat support rods, a U-shaped front support frame including two front legs each pivotally mounted to the respective seat support rod, a U-shaped rear support frame including two rear legs each pivotally mounted to the respective seat support rod, an inverted U-shaped backrest support frame including two backrest support rods each pivotally mounted to the respective rear leg, two armrests each pivotally mounted between the front leg and the backrest support rod, and two linking rods each pivotally mounted between the front leg and the backrest support rod. A security device includes two locking strips each slidably mounted between the backrest support rod and the seat support rod, and each having an upper end portion containing an L-shaped passage having a slide slot and a stop recess, a mediate portion containing a limit slot, and a lower end portion containing a locking opening, two slide pins each extending through the slide slot, the linking rod, and through the backrest support rod, two limit pins each extending through the limit slot, the backrest support rod, and through the rear leg, and two locking pins each having one end portion secured in the seat support rod, and each detachably received in the locking opening.
REFERENCES:
patent: 3319997 (1967-05-01), Clement
patent: 4772068 (1988-09-01), Gleckler et al.
patent: 5054848 (1991-10-01), Liu
patent: 5529270 (1996-06-01), Liu
patent: 5707105 (1998-01-01), Liu
patent: 5735570 (1998-04-01), Tseng
patent: 5899525 (1999-05-01), Tseng
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