Multifunction seat control apparatus and method
First Claim
1. A seat control system, comprising:
- a pulley mechanism;
a first cable slot that spans a first segment of a circumference of the pulley mechanism; and
a transverse guide surface including a first segment, a second segment and a bend, wherein the first segment is nearer an axis of the pulley mechanism and is angled toward an actuation direction of rotation, the second segment is nearer the circumference of the pulley mechanism and is angled away from the actuation direction of rotation, and the first and second segments are connected by the bend.
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Accused Products
Abstract
A multifunction seat control system includes a pulley mechanism in an enclosure, an actuation shaft to attach an external handle, and multiple latch actuation cables. The pulley mechanism includes multiple circumferential slots in which the cables ride, and cable-end entryways through which associated cables ends can be inserted. A lockout device detects a seat-back position to selectively limit the rotational travel of the pulley mechanism. The pulley mechanism is rotationally actuated to a predetermined angle to release a seat-back latch so the seat back can recline or fold forward, and beyond the predetermined angle to release seat-bottom latches so the seat can tumble into a stowage configuration. The control system optionally includes a headrest cable to release a headrest as the seat back is folded forward, and a release strap to actuate the pulley mechanism from behind the seat.
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Citations
29 Claims
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1. A seat control system, comprising:
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a pulley mechanism;
a first cable slot that spans a first segment of a circumference of the pulley mechanism; and
a transverse guide surface including a first segment, a second segment and a bend, wherein the first segment is nearer an axis of the pulley mechanism and is angled toward an actuation direction of rotation, the second segment is nearer the circumference of the pulley mechanism and is angled away from the actuation direction of rotation, and the first and second segments are connected by the bend. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A seat control system, comprising:
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means for rotationally actuating a pulley mechanism in an actuation direction;
means for selectively actuating a first cable with the pulley mechanism based on the amount of tension initially sustained by the first cable;
means for selectively limiting a rotational travel of the pulley mechanism to a predetermined angle based on a seat-back position; and
means for actuating a second cable when the pulley mechanism rotates in the actuation direction beyond the predetermined angle. - View Dependent Claims (25, 26)
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27. A method of controlling a seat, comprising:
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rotationally actuating a pulley mechanism in an actuation direction;
selectively actuating a first cable with the pulley mechanism based on the amount of tension initially sustained by the first cable;
selectively limiting a rotational travel of the pulley mechanism to a predetermined angle based on a seat-back position; and
actuating a second cable when the pulley mechanism rotates in the actuation direction beyond the predetermined angle. - View Dependent Claims (28, 29)
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Specification