JP2000342302A - Antislipping shoe sole material for winter season - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure comfortable walking on a snow pressed and frozen road surface by using an uneven, thick shoe sole material of independent softer foamed sponge than a general shoe sole material. SOLUTION: It is noted that snow frozen water is originally affinitive with each other in consideration of the movement of a shoe sole in frozen season arising at the shoe sole in walking and the operating mechanism of frozen water. Accordingly, a shoe sole 7 employs a greatly uneven soft sponge superior in heat insulation, retaining softness even in cold season. Snow frozen water deposited on the shoe sole is thus fastened to a frozen road surface 4 and the soft shoe sole surface is deformed to cause the separation of the snow frozen water deposited to the shoe sole 7 to be fastened to the road surface and the close contact of the soft sponge shoe sole with the instantaneously formed frozen road surface, so that the shoe sole can physically and configurationally grip the frozen road surface to permit walking on the frozen road surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION In the winter troubles in cold regions, the occurrence of accidents such as fractures due to slipping while walking during walking is constant as many anti-slip devices are widely used. The present invention seeks to solve this by improving the non-slip material.

[0002]

When walking on a frozen road surface in a cold region, there are sold exclusive winter shoes and shoes that allow metal spikes to be put in and out. However, shoe soles for general cold regions are available. However, it is common knowledge that walking on average on normal roads can be dangerous. If metal fittings or metal spikes are installed, it will greatly improve the anti-slipping point, but walking on the floor inside a shop in a town is prohibited because it will lead to damage to the floor. According to the present invention, the sponge material, which is softer than a general shoe sole material and is made of an independent foam, is made of a thick and thin sole material, so that it is possible to walk with confidence even on snowy or frozen road surfaces.

[0003]

Before describing the present invention, the mechanism of a slip accident is first examined. As in the case of a vehicle tire, there is a situation that a temperature near the freezing point of 0 ° C. or less below the freezing point is the most slippery. Thus, this means that when ice or snow comes in contact with the interface of the shoe sole, frictional heat generated slightly due to a sudden change in walking load causes ice and snow in contact with the shoe sole interface to turn into water, As a result of the water covering the interface of the shoe sole, a lubrication phenomenon occurs, leading to a slip accident. Also, in low temperature conditions, the general material of the shoe sole causes a hardening phenomenon due to the low temperature, and at the hard interface of the shoe sole, it becomes compatible with ice and snow, causing a phenomenon that it adheres to the shoe sole and covers the shoe sole with ice Will come. Also in this case, as is well known, the movement generated between the snow or ice on the shoe sole and the ice and snow on the road surface due to the load generated by walking causes a severe lubrication phenomenon, which leads to a slip phenomenon. The present invention uses a closed-cell type material that can maintain a soft state even at low temperatures as the material used for the sole of the shoe. When the load is applied, the surface of the shoe sole, which is made of soft and has large irregularities, rocks while the surface condition of the shoe sole changes drastically as the load is applied, and the attached ice and snow are removed at the interface of the shoe sole. The result is that the snow and snow on the road surface, which has a greater affinity than the shoe sole, are brought into close contact with each other while being further away, so that the user can walk without slipping. The sole material of the present invention is a material that maintains a soft state even at low temperatures and is made of independent foam to maintain high heat insulation, and even on slippery ice surfaces, ice and moisture slightly attached to the interface of the sole change flexibly due to walking load In each case, it is in contact with the road surface ice and snow, causing irregularities on the ice and snow surface in a form separated from the shoe sole interface, which causes a slight resistance between the shoe sole and the ice surface even on the most slippery frozen surface. This can make walking easier. In addition, in the production process of the sole material of the present invention, the most effective is to prevent the freezing surface from slipping, and by mixing a known sand-like substance into the sole material, the sand-like substance is always present on the surface of the sole material. Even if the shoe sole material is worn by walking by forming and manufacturing it so as to be scattered, the sandy substance is always scattered at the interface of the shoe sole, thereby further preventing a slipping accident on a frozen road surface.

[0004]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The typical structure and operation of the present invention are compared with those of a conventional shoe sole (FIG. 1). FIG. 1 is a sectional view of a typical shoe sole according to the present invention. , A cross-sectional view of an example of winter shoes. The conventional shoes shown in FIG. 2 are generally formed of molded products made of wear-resistant nylon or hard rubber, which are common sense as shoe soles, so that they can grip ice and snow on winter roads as shown in 1 in FIG. In order to provide various anti-slip measures by forming an uneven surface with an acute-angled tip on each pattern, in low-temperature environments, even in general, the hardness of rubber products increases due to low temperatures. As a result, a slip phenomenon occurs on the surface of the frozen ice as a result of reducing the area resistance of the shoe sole in area. Also, in general, hard rubber and nylon have better heat conduction than independent foam rubber, etc., so they may freeze at the position 2 etc. and form close contact ice and snow on the shoe sole, and the shoe bottom hardened in winter forms an ice snow surface As a result, walking on the ice surface of the sole of the shoe resulted in a slip accident. In the case of the soft sponge of the independent foam according to the present invention [FIG. 1], the sole of the shoe at the position of 5 is made uneven by weight by making the sole of the shoe thicker and slightly larger uneven on the sole of the shoe. The crushed shape forms a larger landing area than traditional shoes. Also, the anti-slip mechanism is such that in the position 6 formed by the thick heat insulation structure, the slight ice and snow adhering to the shoe sole repeatedly changes the shape of the sole from 6 to 5 due to the walking. The ice and snow slightly attached to the sole of the shoe at the moment when the interface of the sole causes a drastic change is separated from the interface of the sole in a state where it is pressed against the icy road surface which is more compatible with the material of the sole, and the gap between the ice surface and the sole Since the shoe sole interface is formed with a resistance surface over the entire sole at the shoe sole interface in order to be in close contact with the iced road surface or the snow-covered road surface, the walking can be made safer.

As described above, troubles caused by slipping on frozen roads are considered to be a very common accident even before a breakthrough improvement method for walking out in the winter in a cold region is found. It is problematic to think of things as unsolvable. In the present invention, as a result of fundamentally analyzing the mechanism of the state of slipping of the shoe sole, we found out what kind of response was best, and found a breakthrough method through concrete tests. Many of the rapidly increasing elderly fractures are caused by slipping and falling on winter roads, and at the same time, icy roads caused by vehicles running at intersections in urban areas are extremely dangerous. . The soft sponge produced according to the present invention was replaced with an old shoe sole with a slightly larger wavy uneven material, and the results were actually tested by the elderly for two years. . To date, various shoe soles for walking safely on frozen road surfaces and various anti-slip attachment tools have been put into practice. There was no shoe sole that could be used on a daily basis because the mechanism of the instantaneous change, binding and dissociation, was not investigated. The present invention makes the material of the shoe sole thicker with a soft independent foam even at low temperatures, and has a structure with large irregularities, so that when walking on a frozen road surface or a frozen surface, it can be used with an unprecedented road surface. The close contact state has been revealed, enabling stable walking when walking on frozen ice surfaces that were not found in all conventional winter shoes.

[Brief description of the drawings]

FIG. 1 is an example of a cross-sectional view of a typical shoe sole according to the present invention. 4. A frozen road surface. 5. A shoe sole of a soft sponge crushed and uneven by a load. 6. A small snow and moisture or water on a shoe sole interface where a load is not applied. 7 Sole made of soft, closed-cell sponge

FIG. 2 is an example of a cross-sectional view of a conventional winter shoe sole 1 A shoe cross-section processed to be able to grip ice and snow with an abrasion resistant nylon or hard rubber 2 A cured shoe bottom has an affinity with ice and snow 3. The state of the ice sole on the shoe sole. 3. The traditional shoe sole processed with hard rubber, nylon, etc.

Claims (3)

[Claims] 1. A non-slip shoe sole material when walking on a frozen road surface using a ridge-shaped wave or a ring-shaped ridge as a sole material by a soft, closed-cell type sponge rubber. 2. A slip-resistant sole material according to claim 1, wherein a sand-like hard substance is mixed in the sponge rubber. 3. An anti-slip shoe sole according to claim 1, wherein said sponge rubber sole component is attached to an easily removable cloth or flat plate and used in an overshoe state. Material