SU59560A1 - Gripping device for bricks - Google Patents

Description

To lift a stack of bricks, for example, when building buildings, when unloading from a ship, when loading onto a truck, car or other vehicles, they are often used for girder grips and for brick piles suspended from a crane hook. These devices consist of two separate beams that are used to lift a brick pile and which are connected with an upper frame, suspended by chains or cables to a crane hook, by means of links.

To prevent bricks falling out during transport by crane, the gripping device is usually equipped with a safety grille surrounding the upper part of the raised, its stack.

The invention relates to the gripping devices described above and differs from them in that the connecting rods connecting the individual lower beams to the upper frame are arranged in such a way that when the stack is raised, horizontal forces develop, clamping the lower rows of bricks between the individual beams.

The drawing shows an exemplary embodiment of the invention.

moreover, FIG. 1 is a side view of the gripper, FIG. 2 is an end view thereof; FIG. 3 is a plan view.

The upper welded rectangular frame 1 is suspended by four cables or chains 2 attached to a common ring 3 last to the hook 4 of a crane. This frame is suspended by means of cables 7 section; 1 beams 5 of angular section. In addition to these supporting cables 7, two lines 8 on each side are attached to the upper beam at its corners. Each of these cables bends around a hook 9 of the lower beam and with a loop of its free end engages a hook 10 of the other lower beam.

Thus, when lifting a stack of bricks, the force from line 8 will tend to bring the beams together to one another and thereby clamp the lower row of bricks between the vertical flanges of the beams 5.

In order to prevent bricks from falling out, a grill 11 is provided, suspended from the upper frame by several taps b and looping 12 lines 8.

The subject matter of the invention.

A gripping device for bricks, consisting of two lifting beams, connected by means of a bail with a frame, suspended from a hook of a lifting cable or chain, due to the fact that the bosses of each side of the bail are freely passed into the rails of the lifting beam of this side and detachably fastened to another beam in order to clamp the lower strut of bricks when lifting the shtab.

FIG.