JPS595361Y2 - Barefoot trip - Google Patents

Description

[Detailed description of the invention] This invention relates to barefoot shoes in which the joint between the insole and the lining is three-dimensionally maintained, and in which the periphery of the insole and the insole are fixed by gluing over part or all of them, and a tread sole is attached, the fabric of the insole extends outward at required parts of the periphery of the insole to provide a bend allowance, and the bend allowance is abutted against the inside of the insole to attach the insole.

Generally, footwear is made by combining a relatively thick insole made of cotton or other fabric with an outer lining made of another cotton fabric, and then attaching a tread.

The insole and the lining are attached by adhesive or by sewing, but because the lining is more flexible than the insole, it is difficult to maintain the three-dimensional shape of the joint of the lining; particularly in the toe area where the toes are inserted, the lining becomes flat, making it difficult to insert the toes when wearing the shoes.

For this reason, the inventor previously proposed to use expanded fabric around the edge of the insole, and to press the joint between the insole and the insole fabric from the inside to maintain its shape (JP Patent Publication 521).
No. 10147), this insole is time-consuming to produce because it is expanded by sewing another tape or the like, and if it is expanded excessively, there is a disadvantage that an uncomfortable feeling occurs at the inner corners whenever the foot is barefoot.

The present invention was devised based on such problems, and relates to an optimal device for barefoot shoes, in which the insole and the insole are partly or entirely attached with an adhesive.

The present invention will now be described with reference to the drawings. FIG. 1 is a perspective view showing the barefoot boots of the present invention, FIG. 2 is an enlarged cross-sectional view taken along line X--X of FIG. 1, and FIG. 3 is a perspective view of an insole used in the present invention.

The present invention is a sash tab in which the lining edge 1a and the insole 2 are fixed by gluing over a part or the whole of them, and the ground bottom 3 is further attached by sewing 4 along the groove 3a, for example.

In this case, the insole 2 has a bend allowance 2a provided by extending the material of the insole 2 outward at the required peripheral portion, particularly at the toe portion, as shown in FIG.

Using such an insole 2, the bent rising margin 2a of the toe portion is raised while being bent along the inside of the insole 1 as shown in FIG.

Generally, the material of the insole 2 is relatively thick, so that the bend allowance 2a presses lightly against the insole 1, so that this portion maintains its three-dimensional shape, and the toe portion in particular bulges out, making it easier to insert the toes.

The insole 2 may be attached to the peripheral edge 1a of the insole entirely or partially, for example, to both sides excluding the crotch and heel portions.

In the above example, the bent rising margin 2a provided on the insole 2 is bent at the time of joining, but in order to make the effect of the present invention more remarkable, it is preferable to harden the bent rising margin 2a' in advance and make it rise, as shown in FIG.

That is, the hardening method may be to impregnate the bent rising edge with a thermosetting resin or emulsion as shown in FIG. 5A, or to place paper or cloth impregnated with such a resin on the rising edge as shown in FIG. 5B, and then mold the material using a suitable mold.

The angle of the bent rising margin 2a' to be hardened can be selected to be a right angle or any angle close to this.

As is clear from the detailed description above, in the barefoot tabi of this invention, the bent rise portion created by extending the insole fabric outward presses from the inside of the lining joint, without causing any discomfort at the inside corner, thereby maintaining the three-dimensionality of this area, and because the lining edge is fixed to the insole by gluing, there is no discomfort or tightness felt, and furthermore, the joint is reinforced from the inside, which has the advantage of improving the strength of this area and providing a cushioning effect.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the footwear of the present invention;
The figures are an enlarged cross-sectional view of line X-X in Fig. 1, a perspective view of the midsole in Fig. 3, a perspective view of another example of the midsole in Fig. 4, and enlarged cross-sectional views of examples of the bend rising margins that have been hardened and raised. 1.... Insole, 1a.... Periphery, 2...
...Middle sole, 2a, 2a'...Bending rise allowance,
3... Grounded bottom.

Claims (1)

[Scope of utility model claims] 1. Barefoot shoes in which the periphery of the insole and the insole are fixed by gluing over part or all of them and a tread sole is attached, the insole fabric extends outward at a required part of the periphery of the insole to provide a bend allowance, and the insole is attached by abutting this bend allowance against the inside of the insole. 2. Barefoot shoes as described in claim 1 of the registered utility model, in which the bend allowance is hardened and raised. 3. Barefoot shoes as described in claim 1 or 2 of the registered utility model, in which the bend allowance is provided at the toe part of the insole.