Crane equipment used at the construction site of reinforced concrete buildings

摘要

PROBLEM TO BE SOLVED: To provide a crane device which is used at a construction site for the purpose of simplifying a structure of a stationery type crane as much as possible and achieving enlargement of a work range, efficiency of a work, and reduction of a construction cost so as to enable carrying-in of many materials safely and with a good efficiency.SOLUTION: In a crane device 1 which is used at a construction site, a lower chord member 4 of a truss type boom 2 is formed from a rail for a hanging car and is attached to an upper part of an innermost side of a core pillar 15 of a telescopic multistage type strut 6 by a bolt and a nut in the state that attachment/detachment and left/right rotation thereof are possible. Two square pipes are configured in a telescopic structure at a front part of the rail for the hanging car, and the hanging car in a movable type support strut 13, in which the hanging car is fitted to an upper part of an outer square pipe and a wheel 11 with a jack is attached to a lower part of an inner square pipe, is fitted in the rail for the hanging car. Further, the hanging car is fitted to an upper part of an electrically-driven type winch 5, the hanging car is fitted in the rail for the hanging car, and thus, the electrically-driven type winch can be longitudinally moved.SELECTED DRAWING: Figure 1