US Patent 7150441 Runner for a motor vehicle seat

A runner for a motor vehicle seat comprises a fixed rail, a moving rail, a latch and an actuating element. A retaining device for retaining the actuating element is adapted to co-operate with a longitudinal indexing system on the fixed rail. The retaining device firstly holds the actuating element in an unlocking position over at least one predetermined range of longitudinal positions Further, the retaining device secondly allows the actuating element to move into a locking position outside the at least one predetermined range of longitudinal positions.