RU2781910C1 - Knife "sakha-arctic" - Google Patents

Abstract

FIELD: knives.

SUBSTANCE: invention relates to the field of household carving knives. Knife consists of a blade and a handle. The knife is made with a descent at one side and an awl-shaped end, and has a length of 130 to 200 mm, a thickness of 5 to 7 mm, and a width of no more than 20 mm.

EFFECT: expanded operational properties of the knife and increased versatility of field uses thereof.

1 cl, 2 dwg

Description

The invention relates to household cutting knives.

Carving knives are known under the general name "Yakut knife", consisting of a blade with a one-sided descent and a handle (Great Soviet Encyclopedia. Second edition. Vol. 47, 49. Ed. 1958; V.L. Seroshevsky. Yakuts. Experience of ethnographic research 1993 edition and others).

Known inventions that improve the design and performance of cutting knives (RF patents No. 2028205; No. 2091209; No. 2100740; No. 2127186; No. 2189307, etc.).

A disadvantage of the design of existing knives is the difficulty in controlling the depth of cut and chip thickness when planing various materials, such as wood and frozen food products, in particular, meat and fish. The constant sharpening angle of the blade along the entire length of the blade is designed for processing a specific type of material (meat, fish, wood, skin, etc.) and does not allow choosing the optimal cutting mode for materials with different physical and mechanical properties, in particular, hardness. The wide and symmetrical profile of the tip (toe) of the blade does not allow efficient drilling and processing of their inner surfaces in various materials, such as wood, bone and plastic.

The closest known device in terms of design is the Sakha knife (RF Patent No. 2635029, 12/14/2015), which is free from the disadvantages of knives, which are given in the patents mentioned above. However, due to the width and insufficient transverse strength of the blade, just like other knives, it is not convenient for slaughtering and butchering deer and other animals, in particular: for instant immobilization of animals by cutting the spinal cord through a crevice between the occipital bone and vertebra; dismemberment of carcasses by joints and bloodletting.

The purpose of the proposed solution is to create, on the basis of the already known design of the Sakha knife (RF Patent No. preservation of the properties specified in paragraphs 1-10 of the patent of the Russian Federation No. 2635029.

The proposed design of the knife, consisting of a blade and a handle, is distinguished by the fact that the knife is made with a one-sided descent and an awl-shaped tip and has a length of 130 to 200 mm, a thickness of 5 to 7 mm and a width of not more than 20 mm.

A sign of the distinguishing part of the invention "the knife is made with a one-sided descent and an awl-shaped tip and has a length of 130 to 200 mm, a thickness of 5 to 7 mm and a width of not more than 20 mm." allows you to: use a knife for the humane and bloodless slaughter of a deer or other animal by piercing (breaking) the beginning of the spinal cord through a narrow cleft between the occipital and vertebral bones. It is known that a similar method of slaughtering cattle is traditional for reindeer herders (V.G. Bogoraz. Chukchi, part II. pp. 77-78), as well as for Buryats (D.M. Mansheev "Traditional cattle breeding economy of the Buryats of the Eastern Sayan region, con 19 - early 20 centuries", Ulan-Ude, 2006) and in industrial conditions for this purpose in slaughterhouses special pneumatic guns with a pin are used; due to the thickness and at the same time narrowness of the point, dismember the joints by wedging them, applying significant transverse forces to the blade and cutting off the connective tissues and cartilage between them when cutting carcasses. It is known that the butchering of reindeer by the indigenous inhabitants of the North and the Arctic is completely done with knives, without the use of axes and other cutting tools; piercing a narrow but deep enough wound into a deer or other domestic animal for bloodletting. The release of blood, pus and infiltrate is often used in the field for veterinary purposes. In extreme conditions, hunters and reindeer herders thus, using hot blood, replenish their strength without visible damage to the animal. A wound inflicted with a knife with such a point is obtained with a size of no more than 15 mm, which is insignificant for an animal, and after a bloodletting operation, it is enough to cover it with resin or cauterize it so that it heals. The narrow point is also convenient for the operation to extract the gallbladder from fish, in particular crucian carp.

The indicated feature of the invention provides a solution to the technical problem - expanding the functional properties, increasing the versatility of using the knife in the field, including the conditions of life of northern peoples engaged in reindeer herding, hunting and fishing, in particular, for humane and bloodless slaughter and butchering of deer and other animals while maintaining the simplicity and manufacturability of the manufacture of the knife.

A comparative analysis of the features of the claimed solution with the features of analogues and prototype indicates that the claimed solution meets the criterion of "novelty".

On: fig. 1 shows the knife "Sakha-Arctic"; fig. 2 - photos of the Sakha-Arctic knife.

In FIG. 1 shows the blade 1, handle 2, dol 3, golomen 4, descent (sharpening plane) 5, blade (cutting edge) 6, part of the blade gradually tapering to the point 7, point 8, cross-sectional profile of the handle 9, view of the knife from above 10 , as well as cross-sections of the knife blade along A-A, B-B, C-C.

Claims (1)

A knife consisting of a blade and a handle, characterized in that it is made with a one-sided descent and an awl-shaped tip and has a length of 130 to 200 mm, a thickness of 5 to 7 mm and a width of not more than 20 mm.

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