Crane in a displaceable and reassembled for use on construction sites

摘要

Displaceable and reassembled small crane (1) for use on construction sites and in a frame-shaped frame (2) to be secured to the mast (3) with boom (4), whereby the base side of each corner (5) of guide rollers (6) and wherein the boom (4) at the upper end of the mast is removably mounted, with a receptacle (25) for counterweights mounted on the of the boom (4) opposite side,characterized in thatin the region of the narrow front side (7) of the formed as a flat profile tube frame lower frame (2) on a cross member (9) in the center of the mast (3) is supported, wherein the beam (4) to the mast (3) and the frame (2) is in a fixed predetermined angle to the outside,that in addition to an outer cross member (100) at the other end of the undercarriage (2) an additional cross member (10) in a distance from its rear narrow side (8) is applied, wherein at least one mast support (11) between this further spaced transverse support (10) and the mast back extends upwardly to thisand, which is constructed as a pivotable winch rocker receptacles (25) for the counterweights is mounted, the u-shaped bearing frame (12) with two lateral bearing arms (13, 14) at the spaced additional transverse beam (10) is in each case in a turning joint (15, 16) is pivotably mounted,and that on the bearing frame as a cable winch a traction cable drum (18) for winding and unwinding of a traction cable (17) of the crane (1) with the drive of a motor (19) is applied.and above the traction cable drum (18) or of the drum a these or the motor (19), off in a swivel joint (21) mounted stop lever (20) is arranged in the form of an overload safety device with a restoring holder (22) in the form of a wire rope (23) or a chain with respect to the rear outer cross piece (100) or adjoining region of the undercarriage (2) according to a predetermined length, is bracedand, in the case of a due to an overload on the traction cable (17) of the traction cable drum (18) greater force acting from the plane of the chassis or of a parallel, plane for this purpose, which is constructed as a winch rocker with the bearing frame (12) can be pivoted upwards,the stop lever (20) on the basis of the retainer with respect to the outer cross piece (100) at the same time in the opposite direction against a applied in the switching off switch (24) is pivotable and thus the motor (19) or drive of the traction cable drum (18) off.