RU177739U1 - Hook loop hook - Google Patents

Abstract

The loopback hook refers to means for connecting the ends of cables or ropes or attaching them to other elements and can be used to quickly attach to a cable or rope anywhere. The coupling loop hook comprises a coupling loop eye 1 formed by symmetrically arranged two branches 2 of a curved rod in contact with each other along a generatrix. In the place of the bend of the branches 2, a loop 3 is made. The coupling eyelet 1 is made of a triangular shape with a bending angle α = 10-45 °. A towing device 4 is made at the end of the rod branches 2 in contact with each other. The towing device 4 can be of various shapes, for example, in the form of a trailed ring eye, in the form of a hooked hook or of the same shape with a hook eye 1. The proposed hook loop allows the arsenal of hooks to be expanded loop hooks with reliable and quick connection and easy disconnection.

Description

The utility model relates to coupling fasteners, in particular, to means for connecting the ends of cables or ropes, or to attach them to other elements, and can be used for quick attachment to a cable or rope anywhere.

Known hook loop hooks ("carbines") formed by two branches of a curved spring bar (see, for example, aut. St. USSR No. 1449748 according to IPC F16G 11/10, declared December 30, 1986, ed. St. USSR according to IPC F16G 11/10 No. 1633200, filed on 05/10/1989 and RF patent No. 2019759 according to IPC, published on 09/15/1994

The closest in technical essence is a loopback hook (“carabiner”) containing a loopback eyelet formed by two branches of symmetrically arranged branches of a curved rod that are in contact with each other along a generatrix, at the bend of which a loop is made (see ed. St. USSR No. 1449748 according to IPC F16G 11/10, declared on December 30, 1986).

The disadvantages of the known coupling loop hook is too large a bending radius of the coupling loop eye, which can lead to its stretching and separation.

The technical result is the expansion of the arsenal of coupling loop hooks with a reliable and quick connection.

The technical result is achieved in that in a coupling loop hook containing a coupling loop eye formed by symmetrically located two branches of a curved bar in contact with each other along a generatrix, in the place of bending of which a loop is made, according to a useful model, the coupling loop eye is made of a triangular shape with a bending angle α = 10-45 °, at the end of the branches of the bar contacting each other, a hook-on device is made. The towing device is made in the form of a hooked ring eye, in the form of a hook hook or the same shape with a hook loop eye.

The essence of the utility model is illustrated by drawings.

In FIG. 1 shows a hitch loop hook with a towing device in the form of a hook-on ring eye; in FIG. 2 - coupling loop hook with a towing device in the form of a hook hook; in FIG. 3 - coupling loop hook with a towing device identical with the coupling loop eye.

The coupling loop hook comprises a coupling loop eye 1 formed by symmetrically arranged two branches 2 of a curved rod in contact with each other along a generatrix. In the place of bending of the branches 2, a loop 3 is made.

The hinge eyelet 1 is made of a triangular shape with a bending angle α = 10-45 °. All curved sections of the loopback hook hook are rounded.

At the end of the branches 2 of the bar in contact, a hook-on device 4 is made.

The towing device 4 can be made of various shapes, for example, in the form of a trailed ring eye, in the form of a hooked hook or of the same shape with a hook loop eye 1.

The hook loop can be made of both metal and plastic.

The connection of the cable with the loopback hook is as follows.

The loop of the cable, previously made at the end of the cable, is thrown onto the branches 2 either from the side of the towing device 4 or from the side and then it is pulled through the gap between the branches 2 to the point of bending of the hook loop eye 1. When the cable is pulled, the loop is tightened at the end of the hook loop eye 1 , forming a reliable connection of the cable with the loopback hook. When the cable is loosened, the cable loop without outside help cannot be released from the coupling loop hook, since the cable loop to exit the coupling loop eye 1 must be directed into the gap between the branches 2, which is easy and detachable if necessary.

During the test it was revealed that the bending angle α of the loopback eyelet, which differs from the proposed boundary values, leads to the difficulty of fastening the cable at a smaller angle, and with a large angle leads to stretching and separation.

A distinctive feature of the use of the loop hook is that it is also possible to connect the cable to the loop hook without having to loop the cable at the end. For connection without a loop, the end of the cable is wound in two turns from the side of the tow hitch 4. Then this wound end of the cable is pulled together with the rest of the working part of the cable through the gap between the branches 2 to the point of bending of the loopback eyelet 1, and the free end of the cable should be under the working part of the cable that will provide a reliable connection when pulling the cable, which is confirmed experimentally.

The proposed loopback hook allows you to expand the arsenal of hooked loop hooks with a reliable and quick connection, as well as the possibility of easy separation.

Claims (4)

1. A coupling loop hook containing a coupling loop eye formed by symmetrically located two branches of a curved bar in contact with each other along a generatrix, in the place of bending of which a loop is made, characterized in that the coupling loop eye is made of a triangular shape with a bending angle α = 10- 45 °, at the end of the bar branches in contact with each other, a hook-on device is made. 2. The coupling loop hook according to claim 1, characterized in that the towing device is made in the form of a trailed ring eye. 3. The hinge loop hook according to claim 1, characterized in that the hitch is made in the form of a hook hook. 4. The hinge loop hook according to claim 1, characterized in that the hitch is made equally with the hitch loop eye.

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