| 摘要 |
A seat slide device for a vehicle seat includes a lower rail fixed to a vehicle floor, a support bracket for supporting the vehicle seat, an upper rail fixed to the support bracket and slidably supported on the lower rail relative to the lower rail, a nut member fixed to the lower rail, a screw shaft engageable with the nut member and rotatably supported on the upper rail and a gear device supported on one end of the upper rail through a holdong bracket to transmit a rotational force from a power source to the screw shaft. The upper rail is movable relative to the lower rail in a front and backward direction relative to the seat by the engagement of the screw shaft with the nut member. The holding bracket is fixed to the upper rail and the support bracket for supporting a gear case of the gear device over a circumferential area of the gear case on front, rear, upper and lower surfaces in cooperation with the first support bracket.
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