Patent ID: 6959900
Filing Date: 2005-11-01
Classification: B60N

Abstract:
1. A powered seat sliding apparatus driven by a motor, comprising: a sliding mechanism having a lower rail and an upper rail movable in a lengthwise direction relative to the lower rail; a feed screw rotatable supported by the upper rail to be rotated around a rotational axis in the lengthwise direction in response to a rotational force of the motor; a slit train provided at both side portions of the lower rail in the lengthwise direction outside of an inner side wall of the upper rail and engaged with the feed screw; a rotary cable operatively connected to the feed screw to transmit the rotational force of the motor to the feed screw to rotate the feed screw; the rotary cable having an end Portion arranged in the lower rail; wherein a tooth width of a screw top of the feed screw is gradually reduced toward the top of the feed screw; and an engagement ensuring means for ensuring an engagement of the screw top with the slit train; wherein the engagement ensuring means includes a biasing means for biasing the screw top in a direction of the slit train.