Patent attributes
A vehicle seat slide device includes an upper rail, a lower rail, a lock mechanism, and a lock release mechanism. The lock mechanism restricts relative movement of the upper rail. The upper rail includes two side walls and an upper wall. The lock release mechanism includes a lever member, a push portion, and a spring member. The push portion pushes an unlock element of the lock mechanism and performs an unlocking action with the lock mechanism when the lever member is pivoted based on an operation force. The spring member applies an urging force to the lever member in a direction opposite to the direction in which the lever member is pivoted. The spring member includes an engagement end, which engages the lever member, and a spring body. At least the spring body is arranged in an inner space of the upper rail defined below the upper wall.
