JP2002223811A - Shoe structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable easy choice of a material for a backing member capable of obtaining suitable shape retention property, and a plan for facilitation and cost down of backing work. SOLUTION: When a vamp cover 2 of a shoe 1 comprises an outside vamp member 3 made of a comparatively thin and soft material, and a comparatively thick reinforcement member 4 that reinforces a fringe section of the outside vamp member 3, the shape retaining property is enhanced by utilizing nonwoven fabric impregnated with an impregnation agent as the backing member 5 on the back of an outside vamp member 3 section at least surrounded by the reinforcement members 4. The degree of flexibility, or the like, can be modified by adjustment of agent impregnation quantity into nonwoven fabric.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a shoe structure suitable for, for example, casual shoes, sports shoes, and the like.

[0002]

2. Description of the Related Art Conventionally, as a shell 51 of, for example, casual shoes or sports shoes, as shown in FIG. 3, for example, the periphery of a relatively thin and soft outer shell 52 is made of a relatively thick reinforcing material. Although shoes that are reinforced with 53 are well known, the thin and soft outer shell 52 of such a shell 51 has a poor appearance especially when it falls down at a toe or the like. Generally, a backing material 54 such as a nylon cloth is provided on the back side of the soft shell material 52 to reinforce the same.

[0003]

However, for the backing material 54 as described above, it is necessary to select an appropriate material such as hardness and shape retention depending on the flexibility of the thin upper material 52 and the type of shoes. In addition, depending on the material of the backing material 54, there are problems such as an increase in cost and deterioration in workability.

Accordingly, an object of the present invention is to make it possible to easily select a material of a backing material having an appropriate shape retention property, and to facilitate the backing work and reduce the cost. .

[0005]

According to the present invention, a nonwoven fabric impregnated with an impregnating material is used as a backing material for a cap.

[0006] As described above, if a nonwoven fabric impregnated with an impregnating material is used as a backing material, an arbitrary shape preserving method according to the purpose of the shoe or the flexibility of the upper material can be obtained simply by adjusting the impregnating amount of the impregnating material. The workability is good because the material of the backing material is constant, and the cost can be reduced.

[0007] The position of the backing material is arbitrary, but it is particularly preferable for a thin outer shell material portion such as a toe portion to be depressed without a shape-retaining property and to have a poor appearance. Position. In the case where the periphery of a thin and soft top member is reinforced with a reinforcing material, a backing material is provided at least on the back side of a portion surrounded by the reinforcing material, but is provided including the back side of the reinforcing material. You may do it.

In the present invention, the impregnating material is a styrene resin or a urethane resin.

Such a resin is excellent in workability because it cures in a short time after being impregnated into a nonwoven fabric.
It is also suitable for adjusting the degree of shape retention.

[0010]

Embodiments of the present invention will be described with reference to the accompanying drawings. Here, FIG. 1 is an overall view showing an example of a shoe adopting the shoe structure according to the present invention, and FIG. 2 is a longitudinal sectional view of the same.

The shoe structure according to the present invention is characterized in that, for example, in a casual shoe or a sports shoe, a material of a backing material for enhancing shape retention of a thin and soft material of the upper material is used. By using a nonwoven fabric with an adjusted impregnation amount, it is possible to always obtain an appropriate shape retention property, and it is intended to facilitate the backing work and reduce the cost.

That is, as described above, in the structure of the conventional shoe, as shown in FIG. 3, the peripheral portion of the upper 52 made of a relatively thin and soft material is reinforced by a reinforcing material 53 made of a relatively thick material. Among them, the thin and soft outer shell 52
Since the portion deteriorates in appearance when it falls downward, it is reinforced by providing a backing material 54 such as nylon cloth on the back side. In such a method, it is necessary to select a backing material 54 having an appropriate shape-retaining property according to the flexibility of the thin upper material 52 or the like.
In many cases, it is difficult to select No. 4 and the cost is increased, and the workability tends to deteriorate.

Therefore, in the case of the present invention, a backing material impregnated with an impregnating material is used in place of the conventional backing material 54 such as nylon cloth, for example, as shown in FIG. The toe portion of the first shell 2 has a relatively thin and soft outer member 3 such as a mesh material or a material obtained by laminating a thin polyurethane foam on a nylon cloth, and a relatively reinforcing member for reinforcing the periphery of the outer member 3. In the case of a thick reinforcing material 4, as shown in FIG. 2, a nonwoven fabric impregnated with an impregnating material in advance is attached as a backing material 5 to at least the back side of a part of the upper material 3 surrounded by the reinforcing material 4.

In the case of the embodiment, the cover 2 of the toe
Of these, the backing material 5 is sewn on the entire back side of the upper member 3 including the back side portion of the reinforcing material 4 so as to improve the shape retention and at the same time to improve the feel and comfort. By adjusting the impregnation amount of the impregnating material impregnating the nonwoven fabric, the flexibility of the backing material 5 can be easily changed.

Incidentally, a styrene resin or a urethane resin is used as the impregnating material. This is because the impregnating material of styrene resin or urethane resin is cured in a short time after being impregnated into the non-woven fabric, and has excellent workability.
It is also suitable for adjusting the degree of shape retention.

Here, the urethane resin includes one or more polyols selected from polymer diols such as polyester diol, polyether diol, polyester ether diol, polycaprolactone diol, polymethyl valerolactone diol, and polycarbonate diol. At least one polyisocyanate selected from organic polyisocyanates such as aromatic diisocyanate, aliphatic diisocyanate, alicyclic diisocyanate, and aliphatic diisocyanate having a cyclic group, and a low molecular compound having at least two active hydrogen atoms, such as fat -Component or two-component polyurethane resins obtained by reacting one or more chain extenders selected from the group consisting of aliphatic diols, alicyclic diols, aliphatic diamines, alicyclic diamines, hydrazine derivatives and the like. There can be used, for example, the method of resin to those in emulsion form is applied to the nonwoven to cure the non-woven fabric is generally.

In the case of a styrene-based resin, for example, a method of spraying a polystyrene-based resin powder on the surface of a nonwoven fabric, heat-treating the nonwoven fabric, melting the polystyrene-based resin powder, and curing the nonwoven fabric is generally used. It is.

The above impregnation method and the like are merely examples in the case of any impregnating material of urethane resin and styrene resin.
It is not limited to the above method and the like.

Since the softness of the backing material 5 as described above can be arbitrarily adjusted, the optimum shape-retaining property can be obtained easily. The workability of contact can be improved.

In this embodiment, the backing member 5 is provided including the back side of the reinforcing member 4 of the shell 2.
It is not always necessary to provide at the back side portion of the reinforcing member 4, but it is sufficient to provide at least the portion of the upper member 3 surrounded by the reinforcing member 4.

In the above description, only the toe portion of the cover 2 has been described. However, the present invention can be applied to other portions, for example, the side portion and the heel portion of the cover 2.

The present invention is not limited to the above embodiment. Those having substantially the same configuration as those described in the claims of the present invention and exhibiting the same operation and effect belong to the technical scope of the present invention. For example, the form of the shoes is an example, and the material of the upper member 3 is also an example.

[0023]

As described above, in the shoe structure according to the present invention, since the nonwoven fabric impregnated with the impregnating material is used as the backing material for the upper, the purpose of the shoe is to be adjusted only by adjusting the impregnation amount. Arbitrary shape-retaining properties can be obtained in accordance with the degree of softness of the blade and the shell material, and the workability is good because the material of the backing material is constant, and the cost can be reduced. If the impregnating material is a styrene-based resin or a urethane-based resin as in claim 2, workability is good and it is suitable for adjusting the degree of shape retention.

[Brief description of the drawings]

FIG. 1 is an overall view showing an example of a shoe employing a shoe structure according to the present invention.

FIG. 2 is a longitudinal sectional view of the same.

FIG. 3 is a sectional view of a conventional shoe structure.

[Explanation of symbols]

1 ... shoes, 2 ... shell, 3 ... top material, 4 ... reinforcement material, 5 ... backing material.

Claims (2)

[Claims] 1. A shoe structure characterized in that a nonwoven fabric impregnated with an impregnating material is used as a backing material for the upper. 2. The shoe structure according to claim 1, wherein said impregnating material is a styrene resin or a urethane resin.