JPS58130001A - Extensible marathon shoes and production thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Most shoes do not expand or contract, and one reason for this is that it is impossible to form a shoe shape by inserting a lace into an expandable midsole.

However, during marathon races and other races, the foot touches the ground thousands of times, and the fact that these shoes do not stretch or contract at all can cause damage to fingers and nails.
I can do it even if I don't have it! If it expands and contracts, it will be much easier for the user to travel.

For example, if you run down a long downhill slope, your toes will tend to touch the ground and the front of your toes will slump, causing a collision with the inner wall of the front of your shoes, which will naturally damage your fingers and nails.

At this time, if the toe has the ability to expand and contract as necessary, injuries to the d toe will be considerably reduced.

In this invention, both the thick knitted insole material 1 and the insole material 2, such as thin rubber pieces, expand and contract easily. Apply KII adhesive to the back of the stockinette insole 1 and let it completely dry, then apply it to the adhesive coated surface of the knitted insole 1 while the adhesive applied to the inner sole 2 such as a rubber piece is semi-dry, and press it together with the shoe metal W6. I was disappointed when I discovered that the adhesive penetrated into the inner surface of the stockinette insole to an inconspicuous extent and stuck to the shoe mold, making it impossible to stretch or contract.

Some footwear materials for shoes have considerable elasticity depending on the material and manufacturing method, and rubber-like sole materials have considerable elasticity depending on the thickness. In this case, the lace part 8 made of a slowly stretchable mesh fabric or the like is hung on the inner sole, and the stretchable sole 4.5 made of rubber or the like pasted with John material is glued to the back side of the lace part 8. After completing the process, the stockined inner surface of the insole, which is fixed to the shoe mold, can be easily separated from the shoe mold by lifting the shoe from the heel, and the adhesive that has penetrated the rcFi on the stockined inner surface, which is the sole of the foot, is not visible at all. It is something that is finished beautifully.

In this way, the laces, midsole, and bottom of the shoe each have elasticity, so just pulling the heel and toe of the finished product with both hands will stretch the shoe by about 2N, and even in actual driving tests, the fingers and toes will stretch. The area between the nails and the inside of the shoe is soft, allowing for a comfortable second-row experience.

Commercially available Maranon shoes, which are used quite often, do not expand or contract under a vertical load of 10 Yf, but only 2 under a load of 18 Yf.
However, in tests using the product of the present invention, the elongation of 15 mm was 10' under a vertical load of 5M! An elongation of 20 millimeters was measured under the same load of ff.

[Brief explanation of drawings]

FIG. 1 is a 111-plane view of this invention, FIG. 2 is a cross-sectional view of the collar, and FIG. 8 is a drawing showing a state in which the midsole material is fixed to a shoe mold. Applicant Ryu Go Junior 2nd Department

Claims (1)

[Scope of Claims] 1. Mainly made of a mesh-like fabric that has excellent elasticity and has gentle elasticity through an insole made of two layers of knitted fabric 1 and two layers of rubber pieces 2 that are also elastic. 99 pieces of shoelace part 8,
To this bottom, a two-layered bottom made of a rubber material 5 and a bottom material 4 made of rubber or the like, which can be easily expanded and contracted, is attached. Ta12son shoes. 2 Apply adhesive to the back side of the stretchable thick knitted insole material 1, and when the adhesive ξ is dry, match the insole 2 of the rubber piece edge where the applied adhesive is semi-dry and attach the shoes. type 6t
t When joined with a crimping machine, the adhesive on the inner sole 2 such as rubber pieces penetrates into the inner surface of the stockinette inner sole 1 to an inconspicuous extent,
Even though the insole materials L and 2 are easily stretchable, they temporarily adhere to the back of the shoe mold and have no elasticity. 11iK')
A manufacturing method for marathon shoes that can be worn.