Chairs and seats – Movable back – Tiltable
Patent
1997-12-09
1999-08-10
Cuomo, Peter M.
Chairs and seats
Movable back
Tiltable
74529, 74533, 16325, B60N 222
Patent
active
059347538
ABSTRACT:
A cam assembly for detachably locking a structural member includes a pivot axle, a cam body having a locking cam surface adapted to make locking contact with the structural member and a curved surface comprising a circular arc segment and another segment offset from the arc segment, a locking latch pivotably movable relative to the pivot axle and cam body between locked and unlocked positions and having a contact surface facing the curved surface of the cam body, and a roller disposed between the contact surface of the locking latch and curved surface of the cam body. The roller is supported on the circular arc segment of the curved surface when the locking latch is held in the locked position such that the distance between the pivot axle and curved surface is filled by the locking latch and roller and play is eliminated between the cam body and pivot axle causing the locking surface of the cam body to make locking contact with the structural member and hold the cam assembly in a self-locking state. The roller is movable from the circular arc segment onto the offset segment of the curved surface in response to pivoting of the locking latch from the locked position to the unlocked position such that the distance between the pivot axle and curved surface is not filled by the locking latch and roller and play is introduced between the cam body and pivot axle allowing the cam body to displace relative to the pivot axle and move away from locking contact with the structural member and thereby detach the cam assembly from the self-locking state.
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Bertrand Faure Sitztechnik GmbH & Co. KG
Cuomo Peter M.
Flanagan John K.
Flanagan John R.
Wite Rodney B.
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