JP3211261U - Soles and footwear - Google Patents

Abstract

An object of the present invention is to provide a shoe sole and footwear that can realize weight reduction, have high manufacturing efficiency, and have good flexibility on the toe side. A shoe sole including an outsole having a ground contact surface and a midsole disposed above the outsole, the midsole including a core member and the core member. The side surface coating layer 22 is composed of a printing layer. The shoe sole 1, the insole 2, the insole 3, and the upper 4 are footwear, and the insole 2 is made of sponge. [Selection] Figure 2

Description

  The present invention relates to a shoe sole and footwear.

Conventionally, the bottom of footwear, such as women's sandals, has been formed with compression molding members made by compression molding rubber, urethane, or wood chips, etc., and decorative patterns etc. have not been applied to the surrounding side surfaces Tasteless and dry are common.
However, in recent years, footwear with a design on the peripheral side surface of the bottom of a sandal, for example, has been developed in response to an increasing trend toward emphasizing design.
As a prior art showing such footwear, for example, there is Patent Document 1 below.

Utility Model Registration No. 3058685

The above-mentioned patent document 1 is a device related to footwear, and has an advantage that it is possible to improve the design of footwear for thick shoes having a bad appearance.
However, since a large number of chip members are attached to the peripheral side surface of the bottom member of the footwear, there is a problem that the weight of the shoe sole cannot be reduced and the manufacturing efficiency is poor.
Moreover, in the conventional footwear which designed the peripheral side surface of the bottom, the thing of the structure which affixes the coating layer provided with a design on the peripheral side surface of the bottom via the adhesive agent was common. Therefore, there is a problem that the weight of the shoe sole cannot be reduced and the manufacturing efficiency is poor.

  Therefore, an object of the present invention is to provide a shoe sole and footwear that can realize weight reduction, have high manufacturing efficiency, and have good flexibility on the toe side.

In order to achieve the above object, a shoe sole of the present invention is a shoe sole comprising an outsole having a ground contact surface and a midsole disposed above the outsole, wherein the midsole includes a core material, The first feature is that it is composed of a side surface coating layer that covers the peripheral side surface of the core material, and the side surface coating layer is composed of a printing layer.
In addition to the first feature described above, the shoe sole of the present invention is formed of a resin, a front region corresponding to a region from the front foot part to the toe, and a middle foot excluding the front region. The second feature is that the hardness of the resin that constitutes the front region is lower than the hardness of the resin that constitutes the rear region. Yes.
In addition to the first or second feature, the shoe sole of the present invention has a third feature that one or more recesses are provided on at least one of the upper surface and the lower surface of the core material. Yes.
Further, the shoe sole of the present invention is characterized in that, in addition to any one of the first to third features, the outsole is composed of a mixture of ethylene-vinyl acetate copolymer resin and rubber. It is a feature.
The footwear of the present invention includes a shoe sole according to any one of claims 1 to 4, an insole disposed above the shoe sole, an insole disposed above the insole, A fifth feature is footwear comprising an upper disposed above an insole, wherein the insole is made of sponge.

  According to the shoe sole according to claim 1, a shoe sole comprising an outsole having a ground contact surface and a midsole disposed above the outsole, wherein the midsole includes the core material, Since it is comprised by the side surface coating layer which coat | covers the surrounding side surface of a core material, and the said side surface coating layer is comprised by the printing layer, a side surface coating layer can be directly formed in the surrounding side surface of a core material. Therefore, weight reduction of a shoe sole is realizable. Further, improvement in production efficiency can be realized.

  Moreover, according to the shoe sole of Claim 2, in addition to the effect by the structure of Claim 1, the core material is formed of resin and corresponds to the region from the forefoot portion to the footpad. A front region and a rear region corresponding to a region from the middle foot portion to the buttocks excluding the front region, and the hardness of the resin constituting the front region is higher than the hardness of the resin constituting the rear region Since it is low, the front region has moderate flexibility and flexibility, and the rear region where a heavy load is applied during walking or the like can be a sole having rigidity.

  Moreover, according to the shoe sole of Claim 3, in addition to the effect by the structure of the said Claim 1 or 2, 1 thru | or several recessed part is provided in at least any one of the upper surface of a core material, and a lower surface. Since it is provided, it is possible to provide a shoe sole that can be further reduced in weight.

  Moreover, according to the sole of Claim 4, in addition to the effect by the structure of any one of the said Claims 1-3, an outsole is ethylene-vinyl acetate copolymer resin and rubber | gum. Since it is comprised with the mixture, it can be set as the outsole which can implement | achieve weight reduction and favorable grip force simultaneously. Therefore, the weight can be further reduced, and a shoe sole having a good grip force can be obtained.

  Moreover, according to the footwear according to claim 5, the shoe sole according to any one of claims 1 to 4, an insole disposed above the sole, and disposed above the insole. Footwear comprising an insole and an upper disposed above the insole, wherein the insole is made of a sponge, so that the weight of the footwear can be reduced, and the effect of the shoe sole is provided. Thus, the footwear can be provided with good flexibility on the toe side.

It is a whole perspective view which shows the footwear of this invention. It is a disassembled perspective view which shows the footwear and shoe sole of this invention. It is a figure which shows the shoe sole of this invention, (a) is a horizontal sectional view, (b) is a top view.

  Hereinafter, a shoe sole according to an embodiment of the present invention and footwear including the shoe sole will be described with reference to the drawings.

Referring to FIG. 1, a shoe sole 1 of the present invention constitutes a grounding portion as well as a shoe base. The shoe sole 1 includes an outsole 10 that constitutes a ground contact portion and a midsole 20 that constitutes a skeleton of the shoe sole 1.
As shown in FIGS. 1 and 2, the shoe sole 1 of the present embodiment includes an insole 2 disposed above the midsole 20, an insole 3 disposed above the insole 2, and an insole 3. The sandals 100 as footwear are configured by combining with the upper 4 disposed above the footwear.

The outsole 10 constitutes a ground contact portion of the shoe sole 1.
In the present embodiment, the outsole 10 is configured to use a foamed mixture of ethylene-vinyl acetate copolymer resin and rubber. Of course, the material of the outsole 10 is not limited to that of the configuration of the present embodiment, and other materials may be used as long as they are normally used as an outsole of a shoe sole.
In addition, this outsole 10 is affixed on the lower surface 21b of the midsole 20 (the core material 21 mentioned later) through the adhesive agent which is not shown in figure.

The midsole 20 constitutes the skeleton of the shoe sole 1 and serves as a base on which the insole 2 is placed.
As shown in FIG. 3, the midsole 20 includes a core material 21 and a side surface coating layer 22 that covers a peripheral side surface of the core material 21.

The core material 21 constitutes the skeleton of the midsole 20. In the present embodiment, the core material 21 is configured by using a foamed polyurethane resin.
Moreover, in this embodiment, as shown in FIG.3 (b), the core material 21 is the front area | region F corresponding to the area | region from a forefoot part to a toe, and the midfoot part except this front area | region F to a heel part. And the rear region B corresponding to the region up to the above, and the hardness of the resin forming the front region F is lower than the hardness of the resin forming the rear region B. Specifically, the front region F is formed of a soft polyurethane resin having a Shore A hardness of 55. On the other hand, the rear region B is formed of a hard polyurethane resin having a Shore A hardness of 92.
As shown in FIG. 2, the front region F is formed to be flat and thin. On the other hand, the rear region B is formed so as to become thicker toward the rear end. Here, the “rear end” means the front end of the rear region B opposite to the side in contact with the front region F.
As shown in FIGS. 2 and 3, in the present embodiment, a plurality of recesses 21 c are provided on the upper surface 21 a of the core member 21. Specifically, six substantially circular recesses 21c are provided in the longitudinal direction of the upper surface 21a. The recess 21c can be formed using a mold as will be described later.

The side surface coating layer 22 covers the peripheral side surface 21 d of the core material 21. In the present embodiment, the side surface coating layer 22 is formed of a printing layer. More specifically, as shown in FIGS. 2 and 3, the side surface coating layer 22 is provided by printing and forming a wood grain pattern M on the peripheral side surface 21 d of the core material 21.
As the printing method for forming the wood grain pattern M, any printing method can be used as long as the side surface coating layer 22 can be directly formed on the peripheral side surface of the core material 21 such as gravure printing or silk screen printing. May be.
The thickness of the side surface coating layer 22 is preferably about 0.5 mm.
The design applied to the side surface covering layer 22 is not limited to the wood grain pattern M, and can be appropriately changed to other patterns such as a cork pattern in accordance with the design of the sandals.

The insole 2 has a function of supporting the foot. Although not shown in detail, in the present embodiment, the insole 2 is formed using a flat-plate-like sponge having a shape and size that is slightly smaller than the upper surface 21a of the midsole 20 (core material 21). It is as composition to do. Although not shown in detail, in the present embodiment, the surface of the insole 2 is covered with a cloth.
The insole 2 is affixed to the upper surface 21a of the midsole 20 (core member 21) using an adhesive (not shown).

The insole 3 is for protecting the foot from the uneven surface of the insole 2.
In this embodiment, it is set as the structure which forms the insole 3 using the sheet | seat of the flat-plate synthetic leather material comprised in a shape and a size one size smaller than the upper surface 2a of the insole 2.
The insole 3 is affixed to the upper surface 2a of the insole 2 using an adhesive (not shown).

The upper 4 constitutes a foot insertion space and constitutes an upper design of the sandal 100.
In the present embodiment, as shown in FIG. 2, the upper 4 is formed by two members of a toe side upper 4a that constitutes the toe side and a heel side upper 4b that constitutes the heel side.
Moreover, in this embodiment, it is set as the structure which forms the toe side upper 4a and the heel side upper 4b with a cloth-like member. Specifically, the toe side upper 4a has two cloth-like members arranged in one horizontal character. In addition, the heel side upper 4b is configured such that the cloth-like member is arranged in a shape that covers the heel (substantially U-shaped in plan view). In addition, as shown in FIG. 2, it is set as the structure which attaches the string member H of the synthetic leather material used as the band which supports a leg to the surface of the heel side upper 4b.
Of course, the configuration of the upper 4 is not limited to that of the present embodiment, and can be appropriately changed according to the design of the sandals.
In the upper 4, as shown in a simplified manner in FIG. 1, the toe side upper 4 a and the heel side upper 4 b are inserted between the upper surface 21 a of the midsole 20 and the lower surface 2 b of the midsole 2. Then, it is attached via an adhesive (not shown).

  A manufacturing process of the shoe sole 1 and the sandal 100 having such a configuration will be described with reference to FIGS.

First, the outsole 10 is formed by using a mold obtained by mixing and foaming an ethylene-vinyl acetate copolymer resin and rubber.
Thereafter, a polyurethane resin for forming the front region F and the rear region B is poured into the mold, and the core material 21 is formed by foaming. At this time, the recess 21c is formed at the same time.
Then, the side surface coating layer 22 is formed on the peripheral side surface 21d of the core material 21 using a printing method such as silk screen printing. Thereby, the midsole 20 is formed.
Thereafter, the outsole 10 and the midsole 20 are pasted through an adhesive. As a result, the shoe sole 1 is formed.
Thereafter, the insole 3 is attached to the upper surface 2a of the insole 2 via an adhesive.
Thereafter, the midsole 2 is attached to the upper surface 21a of the midsole 20 via an adhesive. At this time, the midsole 20 and the midsole 2 are attached to a predetermined position between the upper surface 21a of the midsole 20 and the lower surface 2b of the midsole 2 with the end of the upper 4 folded.
Thus, the sandal 100 is formed.

  The shoe sole 1 having such a configuration and the sandal 100 using the shoe sole 1 have the following effects.

  As a configuration of the midsole 20, the midsole 20 is configured by a resin-made core material 21 and a side surface coating layer 22 that covers a peripheral side surface 21d of the core material 21, and the side surface coating layer 22 is formed by a printing layer. With the configuration, the side surface coating layer 22 can be directly formed on the peripheral side surface 21 d of the core material 21. Therefore, the weight reduction of the shoe sole 1 and the sandal 100 can be effectively realized as compared with the conventional configuration in which the covering layer having the design is attached to the peripheral side surface of the core member via the adhesive. Moreover, it can be set as the shoe sole 1 and the sandal 100 with good manufacturing efficiency.

  In the midsole 20, the hardness of the polyurethane resin constituting the front region F is set to be lower than the hardness of the polyurethane resin constituting the rear region B. Specifically, the front region F is a soft material having a Shore A hardness of 55. And the rear region B is formed of a hard polyurethane resin having a Shore A hardness of 92, so that the front region F has appropriate flexibility and flexibility, and can be used when walking. The rear region B where a large load is applied can be a shoe sole 1 having rigidity. Therefore, it can be set as the shoe sole 1 and the sandal 100 which can reduce the burden to the leg | foot and the waist especially at the time of a walk effectively.

  In addition, a hollow portion can be formed in the core material 21 by providing the recess 21 c on the upper surface 21 a of the core material 21. Therefore, the total weight of the core material 21 can be effectively reduced, and the shoe sole 1 and the sandal 100 can be further reduced in weight.

  Further, by configuring the outsole 10 with a mixture of an ethylene-vinyl acetate copolymer resin and rubber, the outsole 10 that can simultaneously realize weight reduction and good gripping force can be obtained. Therefore, by combining the outsole 10 and the midsole 20 to form the shoe sole 1, it is possible to further reduce the weight, and to make the shoe sole 1 with a good grip force and not slippery. Can do.

  Moreover, it can be set as the sandal 100 which can implement | achieve weight reduction by setting it as the structure which forms the insole 2 with sponge. In addition, by combining the outsole 10, the midsole 20 and the midsole 2 to form the sandal 100, the weight can be further reduced, and the slippery sandal 100 having a good grip force can be obtained. Can do. The sandal 100 having good flexibility on the toe side due to the synergistic effect of flexibility and flexibility of the front region F formed of a polyurethane resin having a lower hardness than the polyurethane resin constituting the rear region B, can do. Therefore, in addition to effectively reducing the burden on the legs and waist during walking, the sandal 100 can be easily worn off. Moreover, it can be set as the sandal 100 excellent in bending durability.

  Note that the shape, size, thickness, and the like of the shoe sole 1, the insole 2, the insole 3, and the upper 4 are not limited to those of the present embodiment, and can be changed as appropriate.

  In the present embodiment, the sandals are used as the footwear including the shoe sole 1, but the footwear including the shoe sole according to the present invention is not limited to the sandals, and women's shoes such as pumps, mules, and high heels are used. Of course, it may be configured to be used for any other type of footwear such as men's shoes.

  INDUSTRIAL APPLICABILITY The present invention can be used as a shoe sole and footwear that can be reduced in weight and improved in manufacturing efficiency, and has good flexibility on the foot side.

DESCRIPTION OF SYMBOLS 1 Shoe sole 2 Middle sole 2a Upper surface 2b Lower surface 3 Insole 4 Upper 4a Toe side upper 4b Sole side upper 10 Outsole 20 Mid sole 21 Core material 21a Upper surface 21b Lower surface 21c Recessed part 21d Surrounding side surface 22 Side surface coating layer 100 Sandal B Back area F Front area H String member M Wood grain pattern

Claims (5)

  A shoe sole comprising an outsole having a ground contact surface and a midsole disposed above the outsole, wherein the midsole includes a core material and a side surface covering layer covering a peripheral side surface of the core material A shoe sole in which the side surface coating layer is formed of a printed layer.   The core material is made of resin, and includes a front region corresponding to a region from the front foot portion to the toe, and a rear region corresponding to a region from the middle foot portion to the heel portion excluding the front region, and The shoe sole according to claim 1, wherein the hardness of the resin constituting the front region is lower than the hardness of the resin constituting the rear region.   The shoe sole according to claim 1 or 2, wherein at least one of a top surface and a bottom surface of the core member is provided with one or more recesses.   The shoe sole according to any one of claims 1 to 3, wherein the outsole is made of a mixture of ethylene-vinyl acetate copolymer resin and rubber.   The shoe sole according to any one of claims 1 to 4, an insole disposed above the sole, an insole disposed above the insole, and disposed above the insole. Footwear comprising an upper, wherein the insole is made of sponge.

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