SU11775A1 - Safety handle for manual lifting gear - Google Patents

Description

In the present invention, a safety handle for hand lifting mechanisms, rigidly connected to the working shaft and working in conjunction with a belt brake, used a snoring dog, disengaged only when using the handle.

In the drawing, FIG. 1 is a front view of the proposed handle; FIG. 2 is a side view with a partial cut.

On the shoulder 3 of the handle rigidly connected to the working axis 13, the 10-dog 9 is rotated on the axis and the 2-turn part 1 on the hinge is equipped with a protrusion 20 and the handle A. The Khrapov dog 9 is articulated to the rod 7, the action of the coil spring 5, sandwiched between the clamp 8 fixed on the shoulder 3 and the retaining ring b attached to the rod 7; It is held securely with a ratchet wheel 11 rigidly connected to the brake plate 19, which is free to sit on the working shaft 13 and is covered by the brake band 19, which is fastened to the peeler, at one end by means of a bolt 14. and the other end, via a hinge 17, is connected to a brake lever 15, having two thrust: bolts 16, serving

to adjust the tension of the tape to being supported when the lever 15 is turned,

The position of the pawl 9, which is engaged with the ratchet wheel 11, corresponds either to the state of rest of the lifting mechanism, or to the release of the load using a band brake. The application of force to the handle Dg causes rotation of part 1 and pressing of the protrusion 20 onto the rod 7, as a result of which the pawl 9 is disengaged from the ratchet wheel 11, and it is possible to rotate the handle together with the shaft 13.

The subject of the patent.

A safety handle for hand lifting mechanisms, characterized using a ratchet dog 9, hinged on the shoulder 3 of the handle, KJecTKO associated with the operating shaft 13, to keep which dog in engagement with the ratchet wheel 11 serves coil spring 5, acting on the push rod 7, and for disengagement - turning part 1, pressing with its protrusion 20, under the action of the handle X, on the above-mentioned rod 7. to the patent and. N. Egorov and P. №. 1177S 3. Rostovtseva

Fig. {