| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an unmanned parking device that can smoothly perform the rise-and-fall action of a stopper plate even when the height of the vehicle from the ground is changed while a person who does not perform clearance gets in a vehicle before adjustment and the clearance is made after a heavy load is put onto the vehicle, can be smoothly driven by fewer number of driving sources than that of the devices even when a plurality of the parking devices are arranged in an unmanned parking lot with large parking space, and can greatly reduce maintenance, inspection, and running costs. SOLUTION: In an unmanned parking device that is equipped with stopper plate 2 standing toward the base of a body that has entered a fixed position, and pushes down the stopper plate 2 after adjustment for allowing a vehicle to leave a parking lot, the stopper plate 2 is driven by a hydraulic circuit with a hydraulic cylinder 10 being driven by a hydraulic supply source while the stopper plate can be raised and pushed down. In the hydraulic circuit 10, a relief mechanism for releasing oil in the hydraulic cylinder 10 is provided when a load operating on the plate 2 exceeds a specific value.</p> |
