RU1789495C - Cargo hoist device - Google Patents

Abstract

Usage: the invention relates to hoisting and transport machinery, in particular to lifting devices, mainly for sheets. SUMMARY OF THE INVENTION: It is new that each bracket is provided with additional elements for communicating with a sling. Moreover, said elements relate to each other and are placed on both sides of the inclined bracket of the bracket. 2 ill.

Description

The invention relates to hoisting and transport machinery, in particular to load handling devices, mainly for sheets.

A device is known comprising carrier brackets, each of which has an inclined upper shelf provided with an element for communication with a sling in the upper part, and a clamping element, which is mounted on the upper shelf of the bracket with the possibility of moving along it a L-shaped slider made with a support for interacting with the lower surface of the upper flange of the bracket, the vertical part of which is arranged to interact with the end face of the sheet, and horizontal with its upper surface. The element for communication with the sling is made in the form of a single hole at the end of the inclined upper flange of the bracket.

The reliability of the known construction when transporting a hard long sheet material is insufficient due to the fact that the height position of the device suspension point is limited by the height of the bracket, since has a single branch sling and

the place of its connection with the bracket at the end of the inclined shelf. With the dimensions of the bracket that are normal for convenient operation and the center of gravity of the load above the level of the lower shelf of the bracket, it may turn out that the suspension point and the center of gravity will be either at the same level, or, even worse, the center of gravity will be above the suspension point. This will lead to an unstable position of the cargo during transportation by two grippers.

The purpose of the invention is to increase reliability.

This goal is achieved in that the load gripping device comprises load-bearing brackets, each of which has an inclined upper shelf provided with an element for communicating with a sling in the upper part, and a clamping element, which is mounted on the upper shelf of the bracket with the possibility of moving along it a shaped slider made with support for interacting with the lower surface of the upper flange of the bracket, the vertical part of which is arranged to interact with the end of the sheet, and

with

Xj

with Oh

ABOUT

ate

horizontal - with its upper surface. According to the invention, each bracket is provided with an additional element for communicating with the sling, said elements being spaced apart and placed on both sides of the inclined bracket of the bracket.

Elements for communication with the sling can be made in the form of a plate with holes at the ends, fixed to the end part of the upper shelf.

Figure 1 shows the load gripping device, General view: figure 2 is also a front view;

The load gripping device consists of brackets with L-shaped sliders 2 and a sling 3. The bracket 1 has a lower shelf 4 (supporting leg) and an upper inclined shelf 5. A plate 6 with two holes along the edges is fixed to the end part of the upper shelf. The branches 7 and 8 of the sling are fixed in the holes of the plate 6, and the free ends of the branches 7 and 8 are interconnected by a branch 9 for hanging on a crane hook. The slider 2 has two cheeks 10, covering the bracket 1 on the sides. In each cheek, a rectangular cut is made, one surface of which is a stop 11, the other is a support platform 12, the Slider is equipped with

with a handle 13 with a jumper 14, a second jumper 15 connects the cheeks 10.

From below, under the inclined shelf 5, the cheeks are connected by a support 16, which has a surface 17 that contacts in working position with the lower surface of the inclined shelf 5.

The lifting device operates as follows.

0 A sling 3 is hung on a crane hook, brought up to a load and set under its estimated center of gravity. Then the branches of the sling are bred to the width of the load, the slider 2 by the handle 13 is moved to

5 is in the upper position and the support leg 4 is brought under the sheet, after which the slider is lowered onto the sheet. After performing these operations, the load is lifted on both sides of the cargo.

0 When lifting two rigid arms with a long load, the center of gravity of which is above the lower flange 4 of the bracket 1, but in the zone between the grips, and as a result of the suspension point being higher than the price5

0

gravity, namely, at the intersection of all three branches of the sling, the load will be in a position close to horizontal.

The descent and unloading operations are carried out in the reverse order.

Claims (1)

The claims The load gripping device is predominantly for sheets containing carrier brackets, each of which has an inclined upper shelf made in the upper part with an element for communicating with a sling, and a clamping element, which is mounted on the upper shelf of the bracket with the possibility of movement along it L-shaped - slider made with support for interacting with the lower surface of the upper flange of the bracket, the vertical part of which is arranged to interact with the end of the sheet, and horizontal with its upper surface, characterized in that, in order to increase reliability, each bracket is equipped with an additional element for communicating with the sling, said elements are spaced apart and placed on both sides of the inclined bracket of the bracket. Fi8.1