| 摘要 |
A vehicle slide rail device, which can support a movable member on an upper rail without jolting by utilizing a supporting portion and a supported portion, which device includes a lock spring generating an engagement-assisting biasing force in a same direction or a different direction from an engaging direction of a locking portion with lock grooves of a lower rail, and a supporting portion of the upper rail is provided with a pair of supporting surfaces, the space there between 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.
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