| 摘要 |
A frame crane is provided to allow lower installation costs than a tower crane by lifting material to a corresponding floor without riding in the frame crane, and to improve work safety by handling objects in a near place. A frame crane comprises a plurality of supports(21,22,23) for support shafts, support shafts(31,32,33), an arm and a winch(50). The supports for the support shafts are installed so as to be fixed or removed in the middle. The support shafts are connected to the supports for the support shafts, and connected in a telescope type and assembled so as to be slid. The arm is connected to an upper end of the support shafts and protruded to outside a floor region. |
