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    • 1. 发明专利
    • CRANE VEHICLE
    • JP2000191283A
    • 2000-07-11
    • JP34989599
    • 1999-12-09
    • COMPACT TRUCK AGLUTZ FRANZKASPAR ERNST
    • KASPAR ERNST
    • B66C23/78B62D33/063B66C13/54B66C23/42B66C23/80
    • PROBLEM TO BE SOLVED: To provide a simple four-point support structure capable of performing manufacture and maintenance at a low cost by forming telescopic support members extended so as to cross the longitudinal center shaft of a vehicle and provided with a support cylinder having a support board at an outside free end thereof into the structure to be directly housed in a vertical vehicle frame. SOLUTION: A vertical frame 11 under a vehicle suspends four pairs of wheels 7. A turning shaft 24 is loaded with a jib head. In a front edge of the frame 11, telescopic outside support members 21a, 21b, to which support cylinders 16, 17 are respectively fitted, are provided at ends of inside support members 20a, 20b capable of being extended. Similarly, in a rear end of the frame 11, outside support members 23a, 23b, to which support cylinders 14, 15 are fitted, are provided at ends of inside support members 22a, 22b. Since the front and the rear outside support members 21a, 21b, 23a, 23b can be directly supported by the frame 11 and housed in the frame 11, a support case is unnecessary.