SU152295A1 - Sling for lifting cargo - Google Patents

Description

LINE TO LIFT LOAD

It was filed on June 17, 1958, No. 602198/27 to the Committee on Inventions and Discoveries under the Council of Ministers of the USSR

Published in the Bulletin of inventions number 24 for 1962

The invention relates to slings with a semi-automatic uncoupling when lifting a load to a height.

Lanyards with a self-disengaging device mounted at the end of the working cable are known. However, these lines do not have a device that warns their self-release when the operating cable is weak.

In the described line to uncouple it from the load at the required distance, the release device is made in the form of a lock with a notch (shed) for the reverse branch of the cable and with a movable spring-loaded rod that overlaps the shed for the branch and is controlled to open the shed from the ground manually by means of a flexible organ (cable).

The described sling is made in three versions, which have the same basic decision and in the work on stroping and detaching the load from each other do not differ.

FIG. 1 shows the described device, made in the first embodiment, side view in section; in fig. 2 - the same, in another embodiment, in two Projections; in fig. 3 - the device in the third embodiment, in two projections.

In the first embodiment (Fig. 1), the body 1 of the sling, having an oblong shape, is equipped with a movable rod 2, which overlaps the shed 3 for the branch of the cable. The rod closes the pharynx by means of the coil spring 4. It is opened manually by a rope 5, passed through the locked sleeve 6 and fastened in the rod head.

In the second embodiment (Fig. 2), the sling has the shape of a disk. A movable radius rod 5 is inserted inside the housing 7. The rod closes the jaws 9 by means of a coil spring 10 abutting against the anvil 11 secured to the body by a rivet 12. The jaws 13 are opened with a cable that passes through the oval hole 14 behind the rod in the case. Holes 15 are provided for passing through them loop 16 of the working cable. The housing is closed by a cap 17 on the thread.

In the third variant, (Fig. 3), the sling has a monolithic body 18, in the upper part — of which two holes 19 are made for the loop of the working cable and in the lower; on the axis of symmetry, the pharynx 20. Along the length of the body there is a round hole in which a spring-loaded cylindrical rod 21 moves; its movement on one side is limited by a pin 22. The coil spring 23 of the rod rests on the sleeve 24 locked by the pin 25. The cable 26 intended for opening the throat is fastened to the pin 22 and is passed out through the oval hole in the sleeve 24.

Subject invention

A sling for lifting cargo, for example, metal and reinforced concrete structures, provided with a semi-automatic device at the end of the cable, characterized in that, in order to detach the sling from the cargo lowered onto the support, the sling is made in the form of a lock with a notch (shed) for the reverse branch of the cable and with a movable spring-loaded rod that overlaps the throat of the branch and is controlled to open the throat from the ground manually using a flexible orgap.

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