| 摘要 |
A lift-up mechanism is provided with a link member with one end thereof being supported rotatably on a movable bracket for holding a movable columnar member, and the other one end thereof being disposed to be engaged with and removed from a fixing bracket. The link member selectively provides a hold state for engaging the link member with the fixing bracket at a rear part of the vehicle body to hold the movable bracket at an initial position or a lift-up position, and a release state for releasing its engagement. A spring member is disposed between the fixing bracket and the movable bracket, with component forces of its biasing force biasing the movable bracket in a direction to be lifted up from the fixing bracket, and biasing the link member in a direction to be engaged with the fixing bracket.
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