US Patent 7328877 Seat slide apparatus for a vehicle

A seat slide apparatus for a vehicle includes a first rail fixedly mounted on a vehicle, a second rail secured to a seat and mounted to be rotatable relative to the first rail, a sliding member arranged between the first rail and the second rail and slidably movable in response to a relative movement between the first rail and the second rail, and a lock member associated with the second rail and movable with the second rail, the lock member provided to be engageable with engagement bores provided at the first rail and the second rail and being biased in a direction to be engaged with the engagement bores, the lock member being accommodated in a space defined by the first rail and the second rail.