RU139607U1 - TAPE SLING FROM METAL GRID - Google Patents

Abstract

1. A tape sling of a metal mesh containing a tape of a metal mesh equipped with metal end elements, the metal mesh of which consists of spirals located across the longitudinal axis of the tape and parallel to each other over the entire width of the tape, connected by transverse rods, at the ends of which the ends of the spirals are fixed, and the extreme spirals of the tape are fixed on the end elements, characterized in that the metal mesh is made of double unidirectional spirals interconnected by screwing one to the other, while the transverse rods pass through the connection zones of the turns of the spirals. 2. A metal mesh tape sling according to claim 1, characterized in that the end elements are made in the form of plates, while the small end element plate is made with through holes for attaching one end of the tape to it and a hook grip hole, and the large end element plate is made with through holes designed to attach to it the other end of the tape, a hole for threading through it a tape with a small end element and a hole for grabbing a hook.

Description

The utility model relates to load gripping devices adapted for use with crane mechanisms for lifting, lowering or moving loads, in particular to belt-type slings with metal end elements, the tape of which is made of metal mesh, which allows lifting the load by the "choke" method ("choker" climb).

Known used for lifting and transporting goods rope, chain and textile slings. These types of lines have disadvantages that make them unsuitable for certain applications and additionally require high maintenance.

So a simple rope sling or chain sling requires at least two chains or two ropes fixed at a certain angle to move the load to avoid slipping on the load. In addition, these slings leave marks on the cargo, which leads to the loss of presentation of the cargo.

Textile slings do not tolerate high temperatures (metal scale, sparks from welding), and with minor cuts in the fabric (metal chips or damage by a nail, wire) - they completely fail.

Slings are known whose tape is made of metal mesh.

Known tape sling of a metal mesh (US patent No. 3360293 "Metal web sling", IPC B66C 1/18, publ. 12/26/1967), which is a tape equipped with metal end elements at each end, formed of many longitudinal metal chains the links of which are connected by welding or clamps.

Known tape sling of a metal mesh (US patent No. 4059302 "Metal chain sling", IPC B66C 1/18, publ. 11/22/1977), which is a tape equipped with metal end elements at each end, formed of many longitudinal metal chains and moreover, a flexible cable is passed through all the links of the chains to fasten the chains into a tape.

However, when operating such slings, it is possible to fold the tape into one large chain (due to the destruction of the fastening of the chain links), which leads to the fact that the tape is converted into many chain slings connected to one large chain sling. The absence of the effect of the web of tape leads to the manifestation of all the shortcomings of the chain sling.

Closest to the claimed is a technical solution presented in GB patent No. 795489 "Improvements in or relating to woven wire slings", IPC B66C 1/18, publ. 05/21/1958. Such a sling contains a metal mesh tape provided with metal end elements. The tape of such a sling is formed by flat metal spirals interconnected by metal straight rods. The direction of the spirals is alternating: right and left. The ends of the spirals are connected to the rod by electric welding. The small end element is made with through holes for attaching the tape by screwing in metal spirals and a hole for grabbing the hook, and the larger end element is made with through holes for connecting the tape by screwing metal spirals, a hole for threading the tape with a smaller end element and hole for gripping hook.

When using such a sling in the event of damage to at least one welding connection of the rod with the ends of the wire spirals or damage to the rod itself, the sling tape is destroyed without any external forces, which can lead to personal injury, loss and damage to the transported cargo.

Thus, the technical solution of such a sling does not provide sufficient safety for its use and the safety of the cargo.

The objective of the claimed utility model is to create a design of a sling from a metal mesh, which allows to achieve a technical result, which consists in increasing the safety of using a sling while ensuring the safety of the transported cargo.

The essence of the utility model lies in the fact that in a tape sling of a metal mesh containing a tape of a metal mesh equipped with metal end elements, the metal mesh consists of spirals located across the longitudinal axis of the tape and parallel to each other over the entire width of the tape connected by transverse rods the ends of which the ends of the spirals are fixed, and the extreme spirals of the tape are fixed on the end elements, the metal mesh is made of double unidirectional spirals connected between bout screwing one into the other, wherein the transverse rods pass through the turns of spirals compounds zone.

The end elements of such a sling can be made in the form of plates, while the plate of the small end element is made with through holes for attaching one end of the tape by screwing in metal spirals and the hole for grabbing the hook, and the plate of the large end element is made with through holes for connecting the other the end of the tape by screwing metal spirals into them, a hole for threading through it a tape with a small end element and a hole for gripping the hook th.

The inventive design allows to increase the safety of the use of the sling and the safety of the load due to the fact that in case of damage to the connection of the ends of the spirals of the grid with the transverse rods or damage to the rod itself, the connection of the spirals between themselves will not completely destroy the tape of the sling. This distinguishes the claimed solution from the design of the prototype, in which such damage would lead to rupture of the tape or loss of cargo. Performing a double mesh allows you to further increase the tensile strength of the sling tape.

A useful model is illustrated by the following drawings.

FIG. 1 Ribbon sling made of metal mesh.

FIG. 2 Ribbon sling made of metal mesh (side view).

FIG. 3 Fragment of a sling tape.

The tape line consists of (Fig. 1, Fig. 2) a large end element 1, a tape 5 made of a metal mesh and a small end element 10. The metal mesh of the tape 5 is made of unidirectional spirals 6 located across the longitudinal axis of the tape 5, ( with the formation of a double spiral) interconnected by screwing one into the other (Fig. 3) over the entire width of the tape 5. The transverse rods 7 pass through the connection zones of the turns of the spirals 6. The ends of the spirals 6 are fixed to the ends of the transverse rods 7 by means of a welding joint 8. The large end element 1 is made in the form of a plate with holes, while the hole 2 serves to thread the hook, the hole 3 serves to pass the tape 5 with the small end element 10 through it, and the hole 4 for connecting the large end element 1 to the plate tapes 5 by screwing the outermost of the spirals into them 6. The small end element 10 is made in the form of a plate with holes, while the holes 9 serve to connect the small end element 10 to the plate of the other end of the tape by screwing them from the other end of the tape 5 out of the spirals 6, and the hole 11 for threading the hook, while the size of the small end element 10 is such that it can be passed through the hole 3 of the large end element 1.

The plates of the end elements 1 and 10 are made of solid sheet metal of various grades (08G2S, M65, etc.), the thickness of the sheet can be from 10 mm to 200 mm. Spirals 6 and rods 7 for a metal mesh are made of metal wire, the diameter of which can be from 1 mm to 4 mm, of various grades of steel (08Г2С, 12Х18Н10Т, etc.). The width of the mesh can be from 50 mm to 800 mm.

To move the cargo using the inventive sling, the center of gravity of the cargo is initially selected. Tape 5 covers the carried load. The small end element 10 is threaded into the hole 3 of the large end element 1, pulling the tape 5 through it, forming a "loop". The small end element 10, using the hole 11, is fixed on the hook. As you tighten the loop, the load is moved, tracking the location of the loop on the load in the area of its center of gravity. The retention of the load occurs due to the friction force of the tape 5 from the metal mesh and tightening the loop of the sling.

It is most effective to use such a sling when moving pipes, beams, fittings, channels, as well as non-standard products that do not have special hooks for transportation.

Thus, the inventive design of a tape sling from a metal mesh can improve the safety of using the sling and ensures the safety of the transported cargo.

Claims (2)

1. A tape sling of a metal mesh containing a tape of a metal mesh equipped with metal end elements, the metal mesh of which consists of spirals located across the longitudinal axis of the tape and parallel to each other over the entire width of the tape, connected by transverse rods, at the ends of which the ends of the spirals are fixed, and the extreme spirals of the tape are fixed on the end elements, characterized in that the metal mesh is made of double unidirectional spirals interconnected by screwing one to the other, while the transverse rods pass through the connection zones of the turns of the spirals. 2. The tape sling of the metal mesh according to claim 1, characterized in that the end elements are made in the form of plates, while the plate of the small end element is made with through holes for attaching one end of the tape to it and an opening for gripping the hook, and the plate is large end the element is made with through holes designed to attach to it the other end of the tape, an opening for threading through it a tape with a small end element and a hole for capturing a hook.

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