SU1731620A1 - Flat-nosed pliers - Google Patents

Abstract

The invention relates to a hand tool and can be used in various industries of the national household. The aim of the invention is to improve the usability. To grip the part, press the handle 6, which causes the sponge 5 to be pressed. A required part is inserted into the resulting gap, which is held by the spring 8 between the working jaws 2 and 5. The second part is fixed by pressing the handle 3 and 4. work with them, for example soldering. 2 hp f-ly, 4 ill.

Description

The invention relates to a hand tool and can be used in various industries of the national household.

Pliers are known that contain handles with a pair of jaws hinged between each other and a replaceable jaw disposed between them on a common axis.

Closest to the proposed are pliers, containing three connected by a common axis of two shoulders, one shoulders of which are made in the form of sponges, others - in the form of handles.

A disadvantage of the known tool is that its use is associated with significant loads on the muscular-ligamentous apparatus of the hand due to the necessity of making lateral bends of the brush caused by the coincidence of the longitudinal axes of the tool and the brush, as well as a small section of the arms. In addition, the tool does not allow the capture of parts of complex configuration and irregular shape.

The aim of the invention is to improve the usability.

This goal is achieved by the fact that in pliers containing three connected by a common axis of two shoulders, one arms of which are made in the form of sponges, others in the form of handles, the end of the middle lever is hook-shaped, and the handles of the other two are curved relative to the longitudinal axis of the pliers, curved the handles are covered with a layer of the material reducing the specific pressure, the thickness of which on the outer sides is greater than the thickness on the inside, the sponge of the middle lever is made of two parts rigidly interconnected, each having a row of lengthwise holes, the larger diameter stage of which is a truncated cone, with a large base facing the opposite side of the working surface of the jaws, and the pliers are provided with pins installed along the axially spring-loaded pins that have a conical section that responds to the conical section of the hole, and force controllers.

FIG. 1 shows pliers, general view; in fig. 2 - the same with intermediate

WITH

with

XS 00

сЈ ю о

sponge with pins; in fig. 3 - intermediate sponge section in FIG. 4 is a view A of FIG. 2.

The pliers contain two two shoulders rygcha, one shoulders of which are made in the form of jaws 1, 2, and the others in the form of handles 3 and 4, bent along the axis. between which there is a third double-arm lever consisting of a sponge 5 and a handle 6, the end of which is hook-shaped. The levers are located on a common axis 7, and the handle 6 is connected to one of the arms by an elastic element 8. The sponge of the middle lever 5 consists of two parts 9 and 10 that are rigidly connected to each other and each have a series of holes 11, step 12 the larger diameter of which is a truncated cone, with a large base facing the opposite surface of the jaws. In the holes 11, the pins 13 are located spring-loaded with a spring 14, the pins 13 have a conical section 15, the counterpart of the conical section of the opening 11.

In the sponge 5, force regulators 16 are also provided, each provided with a face 17 allowing the stiffness of the spring 14 to be changed. The arms 3 and 4 are covered with a layer of material 18 reducing specific pressure 18. for example, foamed rubber, polyethylene, ) The sides of the handle are larger than on the inside.

Pliers work as follows.

The pliers are held open in the hand. Then, in order to grip a part (not shown), the handle 6 is pressed with one of the fingers (for example, with an index or middle finger), which leads to the pressing of the jaw 5. The required part is inserted into the resulting gap, then the handle 6 is released, the part behind the action of the elastic element 8 is held between the working jaws 2 and 5. The second part is fixed in the jaws of the pliers by squeezing the arms 3 and 4, holding both

parts in pliers with one hand, work with them, for example, soldering. The presence of spring-loaded pins 13 ensures the capture and retention of parts

complex configuration, while due to the rotation of the knobs 16 around its axis, the required pressure of the pins 13 on the piece being gripped is provided. If necessary, the release of parts capture

the pliers handles are loosened with a brush, and the part held in the jaws 2 and 5 is released by pressing the handle 6.

The use of the proposed pliers improves the convenience of work, contributes to an increase in labor productivity, reduces the likelihood of occupational diseases, and expands the scope of their application.

Claims (3)

1. Pliers containing three connected by a common axis of two shoulders, one shoulders of which are made in the form of sponges, others in the form of handles, differing By the fact that, in order to increase usability, the end of the middle lever is hook-shaped, and the handles of the other two are curved relative to the longitudinal axis of the pliers. 2. Flat-nose pliers according to claim 1, that is, with the fact that the curved handles are covered with a layer of material reducing the specific pressure, the thickness of which on the outer sides is greater than the thickness on the inner. 3. Pliers pop, 1, characterized in that the middle lever sponge is made of two rigidly interconnected parts, each having a number of holes that are stepped along the length, the larger diameter of which is a truncated cone, with the larger base facing the opposite direction the working surface of the jaws, and the pliers are fitted with holes installed in the axially spring-loaded pins that have a conical section, a mating response to the conical section, and force controllers. f8 FIG. c 9 12 S§ Type A