Chairs and seats – Movable back – Tiltable
Patent
1996-08-29
1998-11-10
Cuomo, Peter M.
Chairs and seats
Movable back
Tiltable
2973017, 188 67, 267172, 267173, B60N 222
Patent
active
058333177
ABSTRACT:
The seat back flanges (32) mount a seat back (34) to a seat frame for reclining movement relative to the seat frame and a control mechanism controls the pivotal movement of the seat back (34). The control mechanism includes a tubular cylinder (54) and a first coil spring (56) is wound around and in gripping engagement with the cylinder (54). The cylinder (54) is non-rotatably secured to the seat frame by being welded or otherwise secured to the flanges (32). The first coil spring (56) has first (58) and second (60) ends extending tangentially from the cylinder (54). A second coil spring (62) is wound in the opposite direction around and is in gripping engagement with the cylinder (54) and, likewise, has third (64) and fourth (66) ends extending tangentially from the cylinder (54). A cam shaft (72) is included for moving the second end (60) relative to the first end (58) for unwinding the first coil spring (56) in a clockwise direction from the gripping engagement with the cylinder (54) to allow the pivotal movement of the seat back (34) relative to the seat frame and for moving the fourth end (66) relative to the third end (64) for unwinding the second coil spring (62) in a counterclockwise direction from the gripping engagement with the cylinder (54) to allow the pivotal movement of the seat back relative to the seat frame.
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Davidson Russell
Durrani Sheryar
Leistra, III Philip
Massara Andrew
Masters James
Allred David E.
Cuomo Peter M.
Lear Corporation
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