| 摘要 |
PROBLEM TO BE SOLVED: To provide a road-rail vehicle in which swinging of a support member of a metal ring which is supported in a vehicle body in a freely swingable manner, can be locked by using a hydraulic cylinder and while swinging is locked, a hydraulic fluid is not supplied to the hydraulic cylinder.SOLUTION: A swing frame 30 which is supported in a freely swingable manner by a sub frame 5, is connected through a metal ring part supporting member to a metal ring for track traveling. Between a bottom face of the sub frame 5 and a top face of the swing frame 30, a swing lock cylinder 34 is provided. When an operation for locking swinging of the swing frame 30 is performed, a swing lock shift state where a hydraulic fluid is supplied from a hydraulic pump P to the swing lock cylinder 34 is switched to a swing lock state where the supply of the hydraulic fluid from the hydraulic pump P is cut off. When an operation for making the swing frame 30 freely swingable is performed, the swing lock state is switched to a swing unlock state where the hydraulic fluid is bled from the swing lock cylinder 34. |
