Patent attributes
A seat slide device for vehicles includes a lower rail, an upper rail, a lock mechanism, a spring member, and an unlocking handle. The upper rail is supported in a slidable manner by the lower rail. The lock mechanism is provided within the upper rail and restricts the movement of the upper rail relative to the lower rail. The spring member is provided within the upper rail. The unlocking handle is operated against the pressing force of the spring member to remove restrictions on the movement of the upper rail imposed by the lock mechanism. The upper rail has inner walls and outer walls. The inner walls have engagement holes formed through the inner walls in the width direction. The spring member has engagement sections inserted through and engaged with the engagement holes. The engagement sections face the outer walls in the width direction.
