| 摘要 |
In a push-up device 5, which is adapted to push up a fuel lid 1 in an opening direction through a push rod 8 or the like of a push-push system after unlocking a locking system, the fuel lid being mounted to a vehicle body through a hinge 2, the push-push system is configured to have such a rotary cam mechanism that the push rod 8 has cams 19 formed on a peripheral portion thereof so as to be brought into engagement with and out of a plurality of guides 20 and 21 in sequence, the guides being formed on a fixed part; and that when a depressing force is applied to the fuel lid 1 toward the vehicle body from a closing state, and when the application of the depressing force is stopped, the push rod is released, based on rotation, from being held by a combination of the guides and the cams at a retracted position with a protruding length deceased, followed by increasing the protruding length under a biasing force and switching the push-push system to a protruding position to push out the fuel lid 1.
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