Adjustable stacking chair

Details Adjustable stacking chair Adjustable stacking chair

1979-03-14

1980-12-23

Zugel, Francis K.

Chairs and seats

Plural related seats

Nested

297337, 297440, 297338, A47C 304, A47C 334

Patent

active

042406633

ABSTRACT:
The chair has a hinged seat which can be pivoted into an upright position and a tubular frame with a configuration permitting stacking of chairs when the seats are upright. The upright tubular frame portions have telescoped sections on each side to permit vertical adjustment of the chair. Seat support clamps attached to the outer tube have locking pins for holding the desired vertical position. A pair of telescoped tubes are hinged to each clamp and a seat fixed to the outer ones. The inner tubes of the pairs are connected together parallel to each other by a transverse member. A turnbuckle is connected under the seat between the middle of the cross transverse member and the seat to permit forward and backward adjustment of the seat. Particular features are disclosed for the seat support clamps for making the adjustments easier.

REFERENCES:
patent: 2627897 (1953-02-01), Apel
patent: 2637371 (1953-05-01), Boutin
patent: 3118705 (1964-01-01), Stalnacke
patent: 3511533 (1970-05-01), Drabert
patent: 3982785 (1976-09-01), Ambasz

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