Vehicle power seat slide device

A vehicle power seat slide device comprising:

• a first rail fixed to a vehicle and provided with two through holes;
• a second rail fixed to a seat and slidably supported by the first rail;
• a nut member made of resin and fixed to the first rail by a bracket surrounding a portion of the nut member;
• the bracket comprising a pair of holes each aligned with a respective one of the two through holes in the first rail and flange portions extending in a longitudinal direction of the first rail from respective end portions of the bracket;
• a screw shaft rotatably supported by the second rail and screwed into the nut member;
• a driving mechanism supported by the second rail to rotatably drive the screw shaft relative to the nut member;
• the second rail being slid ably moved relative to the first rail by virtue of the shaft being screwed into the nut member;
• and
• the nut member comprising a protruding portion fitted into a fifing hole formed on the first rail at a position spaced from the two through holes.

A vehicle power seat slide device comprising:

• a first rail fixed to a vehicle;
• a second rail fixed to a seat and slidably supported by the first rail;
• a nut member made of resin and fixed to the first rail by a bracket;
• the bracket comprising a fitting wall surrounding a portion of the nut member, and a pair of flange portions extending in a longitudinal direction of the first rail from the fitting wall;
• a pair of connecting members each passing through a hole in one of the flange portions and a hole in the first rail;
• a screw shaft rotatably supported by the second rail and screwed into the nut member;
• a driving mechanism supported by the second rail to rotatably drive the screw shaft relative to the nut member;
• the second rail being slid ably movable relative to the first rail by the shaft being screwed into the nut member;
• and
• the nut member and the first rail engaging each other by way of a protruding portion fitted into a fitting hole, the protruding portion and the fitting hole being positioned between the connecting members.