| 摘要 |
A seat slide device for a vehicle includes a first rail (3), which includes a first horizontal wall (12), a first vertical wall (11), and a first flange (13), and a second rail (4), which includes a second vertical wall (14) and a second flange (16). A joining wall (16c) connects the second vertical wall (14) with the second flange (16). The coupling portion between the first horizontal and vertical walls includes a first ball (20a) guide (18). The basal end portion of the second flange (16) includes a second ball guide (19). A first ball (20a) is arranged between the first and second ball guides. A restricting member (17) that projects on the first horizontal wall (12) functions to reduce a vertical space between the joining wall (16c) and the first horizontal wall (12) and is contactable to the joining wall (16c) when the second vertical wall (14) is deformed due to a load that is applied to produce pushing force between the first ball (20a) and the second rail (4). |
