| 摘要 |
[PROBLEM] A slide rail device for a vehicle is provided, which can support a movable member on an upper rail without jolting by utilizing a supporting portion and a supported portion that are formed on one and the other of the upper rail and the movable member. The slide rail device includes a lock spring 50 which generates an engagement-assisting biasing force in a same direction or a different direction from an engaging direction of a locking portion 51 with lock grooves of a lower rail, and a supporting portion 37 of the upper rail 30 is provided with a pair of supporting surfaces 37b, the space therebetween becoming mutually narrower with respect to the direction of the engagement-assisting biasing force, so that when the supported portion is positioned at a predetermined position by the engagement-assisting biasing force, the supported portion engages with both of the pair of supporting surfaces so that forward/rearward movement of the supported portion relative to the supporting surfaces is restricted. |
