A - Human Necessities – 47 – C
Patent
A - Human Necessities
47
C
A47C 3/36 (2006.01) A47C 1/027 (2006.01)
Patent
CA 2089695
There is disclosed a unitary brake for a chair tilt mechanism. The chair tilt mechanism is of the type having a seat back support mechanism biased with respect to a seat tilt mechanism, the seat back support mechanism provided with a mounting bracket and the seat tilt mechanism has a housing attachable to the underside of a chair. The mounting bracket is pivotally attached to the housing adjacent to an end portion thereof. The unitary brake comprises a spindle bracket pivotally mounted in the housing for receiving therein a chair support spindle. The spindle bracket has a plurality of parallel slotted arms extending therefrom with the spindle bracket and the arms being of one piece unitary construction. The unitary brake includes a rear lammal pivotally mounted on the mounting bracket. The rear lammal includes arms interleaved with the spindle bracket arms. The rear lammal arms have slots extending therethrough which are in registration with the slots in the spindle bracket arms. The registered slots are for receiving a locking bolt transversely through the interleaved arms. The locking bolt is movable between a first position in which the interleaved arms are compressed together for locking the seat and seat back in position and a second position in which the arms of the spindle bracket are free to move with respect to the arms of the rear lammal means so that the seat can pivot about the horizontal and the seat back can pivot to and fro about the vertical.
Patton Art A.
Stumpf William S.
Fetherstonhaugh & Co.
Leggett & Platt Ltd.
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