JPS5933362B2 - Footwear stand and its manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to anti-slip anastomosis, more specifically, a dense thin plate block of ethylene-vinyl acetate copolymer resin compound formed on the surface of a large number of independent ethylene-vinyl acetate copolymer resin mixtures, which are formed by foaming and division at the same time. - This invention relates to an anastomosis made of a foam made of a vinyl acetate copolymer resin compound and a method for producing the same.

Conventional anastomoses made of foam made from ethylene-vinyl acetate copolymer resin blends use a mold with a concave-convex pattern to provide a concave-convex pattern on the bottom of the platform, but when pressurized or heated, the mold Since only a thin dense layer is formed on the surface of the foam by contact with the foam, the strength of the contact area is weak. It was common to use a platform with an additional rubber or synthetic resin bottom to provide a non-slip effect.

The present invention does not require the above-mentioned uneven mold or further bonding the bottom of dense rubber or synthetic resin, and the foamed ethylene-vinyl acetate copolymer resin compound has an anti-slip effect. The present invention provides an anastomosis consisting of a body using a simple manufacturing method.

In the present invention, an ethylene-vinyl acetate copolymer resin compound that does not contain a blowing agent is laminated on both sides of a sheet of an ethylene-vinyl acetate copolymer resin compound that contains a blowing agent, and the sheet is filled into a mold, pressurized, and heated. This is an anastomosis made of a foam made of an ethylene-vinyl acetate copolymer resin compound, which is taken out and foamed and divided at the same time to form a large number of independent dense thin plate blocks on the surface, and a method for producing the same.

The foam layer constituting the anastomosis of the present invention is not limited to one layer, but may be one in which foam layers of different hardness and color are stacked and integrated.

In addition, the thickness of the independent dense thin plate blocks on the surface is not particularly limited, but the thickness is 0, which is easy to break during foaming.
, 5 to 1.0 is good.

'□ Next, examples of the present invention will be shown.

In this example, as shown in Fig. 1, there are three foam layers, the center is a hard foam layer 1, the upper and lower sides are soft foam layers 2 and 2' made of the same compound, and the surface has independent dense foam layers. Thin plate block layers 3, 3' are provided.

The composition of the formulation used in this example is as follows.

Center hard foam layer Ethylene-vinyl acetate copolymer resin (vinyl acetate content 15 parts) 100 parts by weight Cross-linking agent Dicumyl, peroxide 1.1 Kneading mold release agent Burata'ri □, 5 (product name) Foaming agent VP 450 (Product name) 8.5 Light calcium carbonate 30 Color Pigment Appropriate amount Upper and lower soft foam layers Ethylene-vinyl acetate copolymer resin (vinyl acetate content 25 inches) 100 parts by weight Crosslinking agent Dicumyl, peroxide 1.0 Kneading mold release Molding agent 7° rata'
1.5 (product name) Foaming agent VP450 (product name) 7.0 Light calcium carbonate 10 Dye Appropriate amount Dense thin plate block layer Ethylene-vinyl acetate copolymer resin (vinyl acetate content 25 parts) 100 parts by weight Crosslinking agent Dicumyl, peroxide 3.0 Kneading mold release agent 7° 3″
□, 5 (product name) Pigment Pigment Appropriate amount, kneading mold release agent Bratac (product name) and foaming agent VP450 (
Product name) is a product of Ichii Co., Ltd.

The above blend was kneaded and then rolled to the following thickness.

Center hard foam layer compound 6.0mm Top and bottom soft foam layer compound 2. Orrrm dense thin plate block layer formulation 0.8 mm Then the above rolled sheet was
As shown in the figure, there is a hard foam layer compound sheet 4 in the center, soft foam layer compounds sheets 5, 5' above and below it, and dense thin block layer compounds sheets 6, 6' on the upper and lower surfaces. 5 layers, 98 to 100% of the internal volume of mold 7
Fill the mold so that the amount is 100~
120 kg/cfA, heating temperature 164-166℃
After heating the press for 5 minutes, open the mold 7 and take it out, and
On the surface shown in the figure, a large number of independent dense thin plate blocks 3, 3' were formed by being divided at the same time as the foaming.
A foam made of a vinyl acetate copolymer resin compound was obtained, and this was punched out with a cutting die to form a shoe anastomosis A, thereby producing the footwear shown in FIG. 4.

The thickness of the anastomosis A in this example is approximately 15.5 mm,
The thickness of each layer constituting the cross section was approximately as follows.

Hard foam layer in the center 1 Soft foam layer on the top and bottom of 8 cylinders 2, 2' Each 3 cylinders dense thin plate block layer 3, 3' 0.75 mm each The hardness of the foam layer was measured using a C type hardness meter. The foam layer is 45
~50 degrees, and the upper and lower soft foam layers were 25-30 degrees.

When the footwear of this example was used on a smooth floor surface, only the independent dense thin plate block 3' on the bottom touched the ground, reducing the ground contact area and locally increasing the ground pressure to prevent slipping. The upper and lower soft foam layers 2゜2' further increase the anti-slip effect by alleviating external forces parallel to the floor surface that act in the walking direction.

Since the central hard foam layer 1 has a higher hardness than the upper and lower soft foam layers 2 and 2', it has the effect of giving the footwear a sense of stability when walking.

In addition, the independent dense thin plate block 3 on the surface that contacts the sole of the foot stimulates the sole of the foot by locally contacting the sole of the foot, giving a unique pleasure, and also prevents slipping between the sole of the foot and the surface of the foot anastomosis. It worked.

As described in detail above, in the shoe anastomosis made of the foam made of the ethylene-vinyl acetate copolymer resin blend of the present invention, a large number of independent dense thin plate blocks on the bottom surface are locally grounded by reducing the ground contact area. Increases pressure to provide anti-slip effect,
The foam layer acts in the direction of movement when walking (it has the effect of alleviating external forces parallel to the floor surface and further increasing the anti-slip effect).

In addition, a large number of independent dense thin plate blocks on the surface that contact the sole of the foot locally touch the sole of the foot, stimulating the sole of the foot and providing a unique pleasure, and preventing slipping between the sole of the foot and the surface of the anastomosis. It also has effects.

According to the manufacturing method of the present invention, a mold with an uneven pattern on the bottom surface is used to provide an anti-slip effect as conventionally used in the anastomosis made of a foam made of an ethylene-vinyl acetate copolymer resin compound. It is not necessary or without attaching a dense rubber or synthetic resin bottom to the foam, simply attach sheets of ethylene-vinyl acetate copolymer resin blends with different formulations, fill the mold, and process. pressure,
It has the advantage of being able to produce a shoe anastomosis that has an anti-slip effect by simply heating and taking it out, and also has the effect of providing a unique pleasant sensation to the soles of the feet.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with Fig. 1 being an enlarged cross-sectional view of a part of the anastomosis, and Fig. 2 being a partially cutaway cross-section showing the state in which sheets of the compound are put together and put into a mold. FIG. 3 is a plan view showing the surface of the shoe anastomosis with a part entered, and FIG. 4 is a perspective view of the footwear produced by the shoe anastomosis according to the embodiment. In the figure, 1 is the center hard foam layer, 2 and 2' are the upper and lower soft foam layers, 3 and 3' are the surface dense thin plate block layers, 4 is the center hard foam layer compound, and 5 and 5' are the hard foam layer composition. The upper and lower soft foam layer compositions, 6 and 6' are the dense thin block layer compositions on the surface, 7 is the mold, and A is the anastomosis.

Claims (1)

[Scope of Claims] 1. A foamed product of an ethylene-vinyl acetate copolymer resin compound, which has a large number of independent dense thin plate blocks of an ethylene-vinyl acetate copolymer resin compound formed on the surface by being divided at the same time as foaming. Anastomosis. 2. A sheet of an ethylene-vinyl acetate copolymer resin compound that does not contain a blowing agent is laminated on both sides of an ethylene-vinyl acetate copolymer resin compound containing a blowing agent, and the sheet is filled into a mold, pressurized, and heated. A method for manufacturing a shoe anastomosis made of a foam made of an ethylene-vinyl acetate copolymer resin compound, which is taken out, foamed and simultaneously divided to form a large number of independent dense thin plate blocks on the surface.