Patent ID: 6349914
Filing Date: 2002-02-26
Classification: B60N

Abstract:
A seat slide device for vehicles comprising a lower rail having an approximately U-shaped cross section which is adapted to be fixedly secured to a floor of a vehicle, an upper rail having an approximately inverted T-shaped cross section which is slidably supported on said lower rail and adapted to support a seat cushion of said vehicle, and a locking lever which is rotatably supported on said upper rail and is engaged with or disengaged from said lower rail, a first and second row of locking teeth which are formed along the longitudinal direction of the rail on said lower rail such that said rows of locking teeth are disposed in an opposed manner while sandwiching said locking lever therebetween, a first flange portion which is formed on said locking lever opposed to said first row of locking teeth and is provided with a plurality of locking holes into which some of said first row of locking teeth are fitted, and a second flange portion which is formed on said locking lever opposed to said second row of locking teeth and is capable of coming into contact with some of said second row of locking teeth in a direction perpendicular to the longitudinal direction of the rail, said second flange portion being provided with a plurality of through holes having front and rear walls located in the longitudinal direction of the rail, several of said second row of locking teeth passing through the through holes in the second flange portion with a gap between each of said several teeth and at least one of the front and rear walls of the respective through hole in the second flange portion so that said gap causes the second flange portion to be unloaded in the absence of a collision, each of the several teeth being adapted to contact said at least one of the front and rear walls upon the occurrence of a collision so that a load resulting from the collision is applied to the second flange portion.