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Seat slide device

  • US 7,556,234 B2
  • Filed: 11/14/2006
  • Issued: 07/07/2009
  • Est. Priority Date: 11/15/2005
  • Status: Expired due to Fees
First Claim
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1. A seat slide device comprising a lower rail fixed to a floor, a support bracket for supporting a 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 holding bracket to transmit a rotational force from a power source to the screw shaft, the upper rail being 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, wherein 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 support bracket;

  • wherein the gear case is provided with a first engaging portion which is formed on at least one of the upper surface projecting upwardly from the upper surface and the lower surface projecting downwardly from the lower surface and at least one of the support bracket and the holding bracket is provided with a second engaging portion to be engaged with the first engaging portion provided on the gear case to define a position of the gear case in width direction relative to the seat; and

    wherein the first engaging portion is provided both on the upper surface projecting upwardly from the upper surface and on the lower surface projecting downwardly from the lower surface and the second engaging portion is a slit hole provided both at the first and the second support brackets to be engaged with the first engaging portion on the gear case to define the position of the gear case in width direction relative to the seat.

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