RU196022U1 - AX - Google Patents

Abstract

The utility model relates to the field of woodworking tools. The ax contains a butt, a blade with a cutting edge and a handle. The handle is made in the form of an ellipsoidal metal pipe with a long axis coinciding with the vertical direction of the ax. The handle is rigidly connected to the butt. The connection of the butt with the handle is made on the front side. The metal handle is wrapped in two layers with a sling of Kevlar material. The technical result is to increase the service life of the surface of the handle of the ax with favorable conditions for its operation. 1 ill.

Description

Technical field

The utility model relates to woodworking tools, and in particular to devices used for chopping and chopping wood.

State of the art

Known ax related to tools, and is intended for chopping wood (Patent RU No. 45327, IPC B26B 23/00, publication date 05/10/2005 Bull. No. 13). A splitting ax containing a butt, a blade with a cutting edge, a handle, the handle being made in the form of a metal pipe rigidly connected to the butt [1].

The disadvantages of this ax are: the smallest lifetime of the handle surface.

Known ax related to tools and is intended for chopping firewood (Patent RU№ 2024389, IPC B26B 23/00, publication date 12/15/1994). The ax contains a butt with a hole under the ax and a blade with a cutting edge. The ratio of the length of the cutting edge of the blade to the total height of the blade and the butt is taken equal to 0.6-0.7 with an ax weight of 1.6 - 1.7 kg. The angle of sharpening the edges of the blade is taken equal to 25-30 ° in the case of cutting and teski of wooden blanks. When chopping wood, the angle of sharpening of the cutting edge of the blade is taken equal to 36-40 ° [2].

The disadvantages of this ax are: short service life of the surface of the handle.

The closest ax splitting ax is known, related to woodworking tools (Patent RU№ 188845, IPC B26B 23/00, publication date 04/25/2019 Bull. No. 12). An ax is a cleaver containing a butt, a blade with a cutting edge, and a handle, the handle being made in the form of an ellipsoidal metal pipe with a long axis coinciding with the vertical direction of the cleaver, the metal handle is covered with a layer of liquid polyurethane, the butt is secured with a handle from the front of the cleaver. [3]

The disadvantages of this ax are: short service life of the surface of the handle.

The proposed technical solution allows to eliminate these disadvantages.

Utility Model Disclosure

The task to which the utility model is directed is to increase the life of the handle surface with favorable conditions for its operation.

The present technical result is achieved in the device with an ax, a blade with a cutting edge and a handle made in the form of an ellipsoidal metal pipe with a long axis coinciding with the vertical direction of the ax, rigidly connected with the butt, and the connection of the butt with the handle is made on the front side , and the metal handle is wrapped in two layers with a sling of Kevlar material.

Distinctive features include:

- the metal handle is wrapped in two layers with a sling, this in turn absorbs vibrations under loads, thereby helping to hold the ax handle more firmly during operation;

- the handle is wrapped in a sling made of Kevlar material, which has significant internal friction, allowing you to quickly dissipate kinetic energy in a collision, turning it into heat, since the handle is an iron beam with dynamic loads;

The handle, made in the form of a metal tube, wrapped in a sling of Kevlar material, possessing properties such as incombustibility, heat resistance and high surface strength, allows to increase the surface service life when exposed to external factors;

In turn, a sling wound on a metal surface is more wear-resistant than other materials that quickly lose their properties and wear out;

The handle, wrapped in a sling of Kevlar material, has a high

superficial strength, surpassing some metals in these features. Winding in two layers with a sling allows you to create a certain small mobility of one layer relative to the first due to a given tension of the slings, which will create the effect of elasticity of the handle surface.

Comparison of the claimed solution with analogues and prototype did not allow to identify in them the signs that distinguish the claimed solution, which allows us to conclude that the criterion of "novelty".

Brief Description of the Drawings

The essence of the claimed technical solution is illustrated in FIG. front view with local sections of an image of an ax containing: 1-ear, 2 - blade, 3 - blade, 4 - handle, 5 - winding of the first layer with a sling, 6 - butt, 7-winding of the second layer, 8 - back side of the handle, 9 - the last ring winding sling.

Utility Model Implementation

For the manufacture of an ax according to a utility model, initially on the handle 4 at the place of winding the slings, notches are applied (not shown in Fig.). At the rear side 8 of the handle, two holes are made (not shown in FIG.) With a diameter equal to the diameter of the sling. Cut the necessary piece of slings. A knot is tied at the end. The free end is threaded into one hole and the lines are wound along the first row 5 over the entire length of the notch section. The last ring 9 of the winding slings is planted on a two-component polyurethane adhesive. The winding of the second layer 7 is performed in the opposite direction to the free hole, laying the rings annular recess of the first row 5. The end of the slings are threaded into the free hole and fixed with a clip. The device is ready for use.

A Kevlar sling has a relatively low weight, and it has significant internal friction, which allows you to quickly dissipate kinetic energy in a collision, turning it into heat, Kevlar is five times stronger than steel, tensile strength is 3620 MPa, this allows you to increase the durability of the handle and extends the life services [4].

They work with an ax as follows: kinetic energy is given to the ax when moving the cutting edge and the blades embed it in the body of the object being processed.

Sources of information

1. Patent RU No. 45327, IPC B26B 23/00, Date of publication 05/10/2005 Bull. No. 13;

2. Patent RU No. 2024389, IPC B26B 23/00, Date of publication December 15, 1994;

3. Patent RU No. 188845, IPC B26B 23/00, Date of publication 04.25.2019 Bull. Number 12;

4.https: //forma-odezhda.ru/encyclopedia/kevlar/.

Claims (1)

An ax containing a butt with a blade having a cutting edge and a handle rigidly connected to the butt from the front of the ax, made in the form of an elliptical metal pipe, the long axis of which coincides with the vertical direction of the ax, characterized in that the handle is wound in two layers with a sling of Kevlar material.

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