RU2443375C1 - Vibration-proof shoes - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: vibration-proof shoes are proposed which contain a sole and an upper part, and also a hermetic cavity placed in the lower part of the shoe and enfolding a foot. The hermetic cavity is equipped with a check valve to be connected with the external environment and a source of compressed air. Rigidity of different parts of the hermetic cavity is made different: the lateral surface may be less rigid than the upper and lower surfaces, or vice versa. At the same time the hermetic cavity can be formed by a membrane fixed along the perimetre of the side walls of the shoe. The cavity is divided by rigidity ribs for at least three separate cavities interconnected by damping sleeves. The sole of the shoe is equipped with protective insert, made of elastic material more rigid than the sole, which serves as an additional elastic element in the vibration-proof system "shoes - operator". Over the hermetic cavity an elastic sealing shell equidistant and congruent to it is located, filled with silicone fluid.

EFFECT: increased protective qualities of shoes.

1 cl, 1 dwg

Description

The claimed technical solution relates to a means of individual protection against vibration, in particular to the design of shoes containing elastic cavities.

A known design of vibration-proof shoes, containing, in addition to the top and the sole, elastic elements in the form of coil springs interacting with tuning units in which threaded holes are made for passage of the springs (according to the USSR AS No. 1528431, A41D 13/08, 1989).

A solution is known containing a pneumatic chamber integrated into shoes [Journal "Technique - Youth", 1973, No. 5, p. 63, Fig. 9]. In this case, the outer layer of the pneumatic chamber is made more rigid, and the inner one is softer and more flexible for fitting the legs. This allows not only to reduce the load on the legs, but also to achieve a massage effect.

The closest technical solution is the design of Reebok's Fury PSI sneakers, which contain air chambers and channels with valves, which allows you to pump and bleed air, thereby providing a soft and durable foot coverage, completely repeating its anatomical structure [Popular Mechanics Magazine, 2005 , No. 5, p.97]. Such a solution is effective, but expensive, since it requires the use of complex technologies and special materials - (prototype).

A disadvantage of the known solution is the fact that it provides a relatively low cushioning of the acting forces on the foot and damping the vibrations arising from them, albeit with the possibility of individual adjustment, while it is notable for its complexity and large dimensions.

A technically achievable result is an increase in the operator's protection against vibration and increased shoe comfort when walking with minimal cost in its manufacture.

This is achieved by the fact that in vibration-proof shoes containing a sole and an upper, as well as an airtight cavity located at the bottom of the shoe, and covering the foot and equipped with a check valve for communication with the external environment and a source of compressed air, the stiffness of various sections of the airtight cavity is made different: the side surface may be less rigid than the upper and lower surfaces, or vice versa, while it can also be formed by a membrane fixed along the perimeter of the side walls of the shoe, and the cavity is divided by stiffness frames on at least three separate cavities interconnected by damping sleeves, and the sole is equipped with a protective insert made of stiffer than the sole of the elastic material and acting as an additional elastic element in the vibration protection system “shoes - operator”, when An equidistant and congruent to it elastic sealed shell filled with silicone fluid is placed above the sealed cavity.

The drawing shows a longitudinal section of the proposed design of vibration-proof shoes.

Vibro-protective shoes include a sole 1 and a top 2, between which is placed, filled with compressed air, an airtight cavity 3, which is filled with excess pressure air, with a check valve 4, unified with a bicycle tire valve for pumping and communication with the external environment and the source of compressed air (not shown in the drawing) and located above the heel 8. The cavity 3 can be placed in the sole 1 or in the lower part of the top 2. The stiffness of different parts of the cavity 3 is different: the side surface 5 can be less stiffer than the upper 6 and lower 7 surface, or vice versa. The cavity 3 can also be formed by a membrane fixed along the perimeter of the side walls of the shoe (not shown in the drawing). The cavity 3 is divided by stiffeners 12 into at least three separate cavities interconnected by damping sleeves 13. The check valve 4 can be equipped with a decorative (stylized) plug 9. It can also be integrated into the heel 12 or in the sole 1 (on the drawing is not shown), for which a channel connecting the cavity 3 with the valve 4 can be made in the heel or sole. To prevent punctures, the sole 1 can be equipped with a protective insert 11 made of an elastic material that is more rigid than the sole 1 and performs the function and an additional elastic element in the vibration protection system “shoes - operator”.

Above the sealed cavity 3 is placed equidistant and congruent to her elastic sealed shell 10, filled with silicone fluid.

Vibration protection shoes works as follows.

Under the influence of the weight of the human operator, an elastic sealed shell 10 filled with silicone fluid and the upper surface of the cavity 3, due to its elasticity and separation by its stiffening ribs 12, into at least three separate cavities interconnected by damping sleeves 13, respectively located , take the shape of the foot of a person. Cavity 3 due to the elastic properties of the internal filler of the cavity - air and the damping properties of the sleeves 13 is an effective vibration protection system "shoes - human operator". The elastic hermetic shell 10 filled with silicone fluid softens and also effectively dampens the load when walking, and also eliminates the skew of the foot when bumps, protecting the foot from dislocation. To increase the efficiency of the vibration protection system “shoes - operator”, the pressure in the cavity 3 can be changed according to the weight of a person, for example, by pumping air through valve 4, or vice versa, releasing it into the atmosphere.

Depending on the pressure created in the cavity 3, you can adjust the height of the foot support, providing a tight fit of the foot, including the top. Depending on the stiffness of the shell 10 filled with silicone fluid and the pressure in the cavity 3, you can create a comfortable feeling of walking, for example, like on grass or a soft carpet.

The proposed design of vibration-proof shoes provides walking comfort and therapeutic effect due to vibration isolation and damping of the loads acting on the foot, as well as due to a more accurate and tight foot coverage.

Claims (1)

Vibro-protective shoes containing a sole and a top, as well as a sealed cavity located at the bottom of the shoe, and covering the foot and equipped with a check valve for communication with the external environment and a source of compressed air, characterized in that the stiffness of different sections of the sealed cavity is made different: side surface can be less rigid than the upper and lower surfaces, or vice versa, while it can also be formed by a membrane fixed along the perimeter of the side walls of the shoe, and the cavity is divided by ribs stiffness on at least three separate cavities interconnected by damping sleeves, and the sole is equipped with a protective insert made of stiffer than the sole of the elastic material, and performing the functions of an additional elastic element in the vibration protection system "footwear-operator", while an equidistant and congruent to it elastic sealed shell filled with silicone fluid is placed above the sealed cavity.