RU224989U1 - PROTECTIVE GLOVE AGAINST CUTS BY HAND CHAIN SAW - Google Patents

Abstract

The utility model relates to light industry, in particular to personal protective equipment for hands against cuts when performing work using a hand chain saw. A protective glove against cuts from a hand chain saw is proposed, the back side of which contains a protective insert under the outer layer. The protective insert is made of a multilayer knitted material, the layers of which are formed by repeated alternate bending and overlapping of two strips 4 and 5 of knitted material on top of each other in a perpendicular direction. This utility model allows you to speed up the process of stopping and blocking the movement of the chain in the event of contact of the chain with the back of the protective glove. 4 ill.

Description

The utility model relates to light industry, in particular to personal protective equipment for hands against cuts when performing work using a hand chain saw.

State of the art.

In some occupations involving the use of a hand-held chain saw, one third of injuries occur to the hands. Injuries occur for a variety of reasons, but the most common cause is improper handling of a hand chain saw.

Personal protective equipment does not provide 100% protection against cuts from a hand chain saw. However, experience shows that it is possible to design personal protective equipment to provide a certain degree of protection. One of the methods of protection is locking, when the fibers of the protective material are drawn into the drive sprocket by the chain and block the movement of the chain. The fibers of the protective material have high cutting resistance and absorb rotational energy, thus reducing the speed of the chain.

GOST R ISO 11393-4-2017 provides requirements for the protective coating of the back side for the left glove, although the same requirements may apply to the right glove.

Gloves for protection against cuts from hand chain saws are known from the prior art. The gloves are designed for work using a hand chain saw: cutting wood directly, as well as assisting in cutting. The gloves are made from a combination of durable and elastic genuine leather on the palm side and an anti-cut bag based on special non-woven materials on the back side. Both left and right gloves can be equipped with a protective saw-resistant insert, which provides protection for right-handed and left-handed people when working with a saw, as well as for auxiliary work when the user does not operate the saw, but helps in cutting.

Traditionally, manufacturers form a protective insert by stacking rectangular parts corresponding to the dimensions of the insert on top of each other (see Fig. 3). However, this method has its drawbacks. Due to the small size of the parts caused by glove size limitations, the fibers are kept to a minimum length. This reduces the effectiveness of the protective insert.

https://husq.ru/perchatki-s-zaschitoj-ot-porezov-benzopiloj-husqvarna-functional-9r

https://www.ejendals.com/ru/products/gloves/special-protection-work-gloves/951/

The disadvantages of the known technical solution are due to the insufficient cutting resistance of the insert due to the short length of the fibers of the material of the insert layers. This reduces the chain's entrainment of protective material fibers into the drive sprocket.

Disclosure of utility model

The technical problem being solved is the manufacture of gloves, the design of which accelerates the process of stopping and blocking the movement of the chain in the event of contact of the chain with the back of the protective glove.

According to the utility model, the protective glove against cuts from a hand chain saw contains a protective insert on the back side under the outer layer. The protective insert is made of a multilayer knitted material, the layers of which are formed by repeated alternate bending and overlapping of two strips of knitted material on top of each other in a perpendicular direction.

The technical result consists in making the seal in such a way that due to a significant increase in the length of the fibers of the protective material drawn by the chain into the drive sprocket, the process of braking movement and blocking the chain is accelerated.

Brief description of drawings

The utility model is illustrated by drawings in which:

in fig. Figure 1 shows a schematic arrangement of the protective insert on the back of the glove;

in fig. 2 - section of the back of the glove;

in fig. 3 - traditional system of laying layers of material to form a protective insert;

in fig. 4 - system for laying layers of material to form a protective insert according to the utility model.

Implementation of a utility model

As shown in FIG. 1 and fig. 2, the protective insert 1 is placed and secured on the back side of the glove between the outer layer 2 of the glove and the lining 3. The insert 1 is made of multilayer knitted material. Such material can have different densities, compositions and methods of weaving fibers. The most suitable materials are, for example, Avertic® (Sweden) and Woodman (Finland). Insert 1 is securely fastened relative to the layers of the glove.

It is obvious to a specialist that the number of layers of the insert, namely, the repeated alternating folding and application of two strips of knitted material on top of each other, depends on the characteristics and design of the material of the layers, as well as the required level of protection, and can reach 30 layers.

According to the utility model, the production of the protective insert is carried out as follows.

The essence of the technical solution lies in a special method of forming layers (see Fig. 4), in which two long strips 4 and 5 of knitted material are placed on top of each other perpendicularly, and then, by alternately bending and overlapping two strips of knitted material on top of each other, a multilayer is formed a rectangular package, the sides of which are equal to the width of the strips laid on top of each other in a perpendicular direction.

In addition to the convenience and precision of insert formation, the latter has longer fibers that provide greater protection.

Claims (1)

A protective glove against cuts from a hand chain saw, the back side of which, under the outer layer, contains a protective insert, characterized in that the protective insert is made of multilayer knitted material, the layers of which are formed by repeated alternate bending and overlapping of two strips of knitted material on top of each other in a perpendicular direction.