JP3057984U - Cup insole - Google Patents

Abstract

(57) [Summary] [PROBLEMS] The present invention combines the properties of cork material to provide heat retention, shape retention, shock absorption, abrasion resistance, breathability, flexibility, An object of the present invention is to provide an excellent cup insole with good usability, which can be accurately adapted to the shape of the foot without causing slipping on the foot. SOLUTION: A cushion material (3) is formed by a cork material (1) made of a mixed molded product of cork particles and a binder resin, and having a shape conforming to a sole shape by a molding die, and a surface cloth layer (2). Sandwich and open on both sides of the cup insole on the bottom (11) of the cork (1),
A solution is a cup insole characterized in that a plurality of grooves (12) in the width direction are provided, and a plurality of ventilation holes (10) are penetrated from the bottom of the groove (12) in the thickness direction.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a shoe insole made of a cork material in which cork particles are mixed with a binder resin. .).

[0002]

[Prior art]

 Conventionally, as a material generally provided with a cork material in a shoe insole, as disclosed in Japanese Utility Model Publication No. 63-1845, a cork material consisting of a mixture molded product of cork particles and a binder resin, and a cushion, A thin shoe insole or the like (hereinafter referred to as Prior Invention 1) in which a surface material or a back surface material is provided on the front surface or the back surface of the laminate is known. When used as a general shoe insole such as business shoes, the insole exhibits flexibility and abrasion resistance during use.However, impacts from various directions are applied to the insole. When used for sports shoes with large undulations, they are always strongly bent, causing cracks between cork grains, which has the drawback of causing the cork material to break.

The embodiment shown in FIG. 6 of Japanese Utility Model Publication No. 63-1845, which discloses the above-mentioned prior invention 1, has the above-mentioned drawbacks, and in particular, the entire shoe insole has a flat plate laminated shape. The cork material in the lowermost layer had no air permeability, and the anti-slipping function of the cork material was recognized to some extent, but not enough.

On the other hand, as a cup insole, for example, as disclosed in Japanese Utility Model Publication No. Sho 61-10485, an upper layer made of a non-absorbent fabric and a lower layer made of a highly absorbent fabric are integrated. A cup insole is known in which a sweat-absorbing material, which is woven in a specific manner, and a foam sheet are integrated by pressing with a pressing mold under heating, and this is punched into a sole shape. Although it is excellent in terms of improving sweat absorption properties, since it is integrated under pressure under heating, the sweat absorbing material, which is a synthetic fiber, shrinks due to heat, and the cushioning material also distorts in accordance with this, resulting in a cup. There is a problem that the dimensions of the insole are out of order, and the foam sheet comes into contact with the sole of the shoe. There was also a drawback that the sole slipped.

[0005]

[Problems to be solved by the invention]

 The present invention says that the heat resistance, shape retention, shock absorption, excellent feeling of use, anti-slip function of cork material, and that it does not involve heat shrinkage unlike other general synthetic resins, etc. By effectively utilizing the properties, it is possible to accurately adapt to the shape of the foot that combines heat retention, shape retention, shock absorption, abrasion resistance, breathability, flexibility, and does not slip in shoes The purpose of the present invention is to provide an excellent cup insole with a good feeling of use.

[0006]

[Means for Solving the Problems]

 A cork material made of a mixture of cork particles and binder resin and shaped according to the shape of the sole with a molding die, and a cushion material sandwiched by a surface cloth layer. A cup insole characterized by providing a plurality of grooves in the width direction and opening a plurality of ventilation holes in the thickness direction from the bottom of the groove, wherein both ends are opened at both ends of the cup insole. It is a means for doing so.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS AND

【Example】

 FIG. 1 is a plan view of a cup insole according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA of the cup insole in the embodiment, and FIG. 3 is a bottom view of the cup insole in the embodiment. .

[0008] The cup insole according to the embodiment of the present invention is a cork material (1) in which the upper layer is a surface cloth layer (2), and the lower layer is a cork material (1) having a shape conforming to the sole shape. The cushioning material (3) is arranged in a sandwich between the middle foot (5) and the rear foot (6) corresponding to the sole between the woods (1).

[0009] Further, on the bottom surface of the cork material (3), arc-shaped grooves (10) each having a width of 5 mm and open at both side edges of the cup insole at intervals of 20 mm are provided in the width direction. In each groove (10), from the front tread portion to the middle tread portion, vent holes (11) penetrating in the thickness direction with openings of 2 mm in diameter at the bottom of the grooves (10) at intervals of 10 mm. I have it.

[0010] The cushion material (3) uses "Fit Cell" (trademark) manufactured by Toyo Chemitech.

As described above, from the front tread portion (5) to the middle tread portion (6), a ventilation hole is provided in the groove (10), and both ends of the groove are open at both side edges of the cup insole. Therefore, while ensuring sufficient air permeability, from the middle tread to the rear tread, there is no vent hole and only grooves are used, so that a synergistic effect with the cork material is achieved. In addition, when the cup insole is used, the bottom surface of the cork material is elastically deformed, and the load due to the weight is dispersed evenly and acts as frictional resistance, thus exerting an excellent anti-slip function.

Next, a method for manufacturing a cup insole according to an embodiment of the present invention will be described. First, the cork material (1) is prepared by mixing a mixture of cork particles and a binder resin at 150 ° C. for 90 seconds, softening the whole, and then applying a pressure of 10 t for 30 seconds with a mold at 5 ° C. As a result, the cork material (1) can be curved according to the shape of the shape along the sole.

Next, a cushion material (3) is placed on the cork material (1) thus formed. Here, a double-sided adhesive sheet is provided at the bottom of the cushion material (3) so that the cushion material (3) does not shift during production, and the cushion material (3) is provided with a cushioning material. By placing the material (3), the material of the cushion (3) is additionally bonded.

Further, a surface cloth layer (2) cut in advance in a shape conforming to the cork material (1) is placed over the cork material (1) and the cushion material (3), and the cork material is heated and heated. The binder resin of the material (1) melts and enters the fibers of the surface fabric layer (2), and thereafter, the cork material (1) and the surface fabric layer (2) are fixed by cooling.

[0015] Here, the cork material (1) is heated and pressurized twice. At this time, since the cork material (1) does not thermally shrink, it has the same size as the original size. Cup insoles can be manufactured.

[0016]

[Effect of the invention]

 According to the present invention, by utilizing the non-heat shrinkability of cork material, the shape of the foot can be accurately formed by the cork material formed first and the cushioning material and surface cloth layer which are later integrated by heating and pressing. It is possible to provide an excellent cup insole that is adaptable and has a good feeling in use.

[0017] Further, since a plurality of grooves extending in the width direction are provided on the bottom surface of the cork material, it is possible to provide the cup insole having a complicated three-dimensional shape with the flexibility lacking in the cork material. At the same time, when used, the bottom surface of the cork material is elastically deformed, and the load due to the weight is dispersed evenly, thereby acting as a frictional resistance, so that the slip-in function of the cup-in-sol can be provided.

Further, by providing a plurality of ventilation holes in the thickness direction from the bottom surface of the groove, air permeability can be efficiently obtained according to the shape of the sole, and the flexibility in an unspecified direction can be improved. Can also be improved.

[0019] Furthermore, since the cushioning material is disposed only in a part between the cork material and the surface cloth layer, fatigue of the sole can be efficiently reduced, and the cushioning material can be shaped to be functionally easy to walk. In particular, depending on the position of the foot corresponding to the area from the middle step to the rear step, the impact when the foot touches the ground is reduced, and the foot is firmly grounded by the front step when walking. Can be kicked and functional.

[0020] In addition, by arranging the cork material in the lowermost layer, it is possible to utilize the shock absorption, heat retention, shape retention, and abrasion resistance of the cork material, and at the same time, the friction resistance itself of the cork material. Also, the anti-slip function of the cup insole in the shoe can be further improved by the fact that is large.

In addition, since the cushioning material, which is extremely excellent in shock absorption, comes into contact with the sole of the foot with a thin heat-resistant cloth interposed therebetween, the cushioning material also provides extremely excellent shock absorption to the foot. be able to.

[Brief description of the drawings]

FIG. 1 is a plan view of a cup insole according to an embodiment of the present invention.

FIG. 2 shows the cup insole A according to the embodiment of the present invention.
It is -A sectional drawing.

FIG. 3 is a bottom view of the cup insole according to the embodiment of the present invention;

[Explanation of symbols]

 (1) Cork material (2) Surface fabric layer (3) Cushion material (4) Front foot (5) Middle foot (6) Rear foot (10) Groove (11) Vent

Claims (2)

[Utility model registration claims] 1. A cushioning material (3) comprising a cork material (1) made of a mixed molded product of cork particles and a binder resin and having a shape following a sole shape by a molding die, and a surface cloth layer (2). A plurality of widthwise grooves (12), both ends of which are opened at both ends of the cup insole, are provided on the bottom surface (11) of the cork material (1), and the bottom of the groove (12) is provided. Multiple vents in the thickness direction from
A cup insole characterized by penetrating (10). 2. The cushioning material (3) is arranged between the cork material (1) and the surface cloth layer (2), and is arranged from the middle tread portion (5) corresponding to the sole to the rear tread portion (6). The cup insole according to claim 1, wherein: