Patent ID: 10040374

Abstract:
There is provided a seat slide device capable of stably holding a position of an upper rail as well as a position of a seat. An upper rail (3) has an inclined section (30d) obliquely formed so as to approach an inner surface of a lower rail (2) as going rearward. A displacement member (32) has an abutting section (33) disposed so as to abut on the inner surface of the lower rail (2) and an inclined section (30d). The abutting section (33) abuts on the inclined section (30d) by rearward urging to the displacement member (32) by a tension coil spring (36a). The inclined section (30d) converts urging force received from a tension coil spring (36a) through the abutting section (33) into force in such a direction as to abut on the inner surface of the lower rail (2) to apply the force to the abutting section (33), and the abutting section (33) is made to abut on the inner surface of the lower rail (2) at a time of locking and at a time of unlocking of a lock member (5).