JPH0619513U - Clay material for waterproof shoes - Google Patents

Abstract

(57) [Summary] [Purpose] Not only does it prevent water from seeping inside the shoe,
To obtain a waterproof shoe covering material having excellent waterproof function and high heat retention [Structure] A urethane resin layer 14 is laminated on the back surface of a suede-like synthetic leather 11 composed of a suede layer 12 and a base cloth 13. The covering portion 10 and the back covering portion 20 formed by laminating the nylon tricot 22 on the front surface side of the soft urethane foam 21 and the cotton pile 23 on the back surface side are separately provided with waterproof or water-repellent sewing thread 40. After sewn with, a space 30 is provided between the front cover part 10 and the back cover part 20 in which the hot melt tape 50 is welded to the seam 15, and the peripheral edges of the gaps 30 are overlapped and collectively sewn with the sewing thread 40. did.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a waterproof shoe cover material applied to generally used waterproof shoes.

[0002]

[Prior art]

 Conventionally, as waterproof shoes, boots (total rubber shoes, slash boots, injection boots, etc.) have been used, but since the part corresponding to the armor cover is made of rubber or vinyl chloride resin, I was dissatisfied with the comfort, such as the need for thick socks because of poor conformability, feel of feet, and heat retention. In recent years, in particular, in Japan, where road conditions have improved and there are many rainy days, there is a strong demand for improved waterproofness of commonly used shoes. Therefore, woven cloth, vinyl leather, synthetic leather, or natural leather is used as the waterproof covering material for the shoes, which is finished by sewing, and the thread is water repellent for the infiltration of water from the seams. We also take measures such as using a water-repellent material and heat-sealing a waterproof tape on the front or back of the sewn portion of the covering material.

[0003]

[Problems to be solved by the device]

 By the way, in the conventional general waterproof shoes with sewn finish, when waterproof tape is applied to the surface of the covering material, not only the waterproof function deteriorates due to wear and peeling as the number of times of use increases, but also It may look bad. In addition, even when waterproof tape is welded to the backside of the cloth, the water that has penetrated through the gap between the seam of the sewing machine and the water-repellent thread diffuses into the base cloth and wets the inside of the shoe, making it unpleasant It causes a problem of making it comfortable to wear.

The present invention has been made against the background of such a conventional technique, and not only does not cause water to invade the inside of the shoe, but also has excellent durability of waterproof function and high heat retention. The purpose is to obtain the material.

[0005]

[Means for Solving the Problems] The present invention comprises a suede-like synthetic leather and a urethane resin layer laminated on the back side thereof, and a waterproof structure is formed by melting and crimping a waterproof tape from the back side of the seam. After sewn the cover part and the back cover part made of a material in which cloth is attached to one or both sides of flexible urethane foam separately with waterproof or water repellent suture, the front cover part and the back cover part are sewn together. The present invention provides a cover material for waterproof shoes, characterized in that a gap is provided between the cover and the cover, and the peripheral edges of the cover are overlapped and sewn together with the sewing thread.

[0006]

[Action]

 In the waterproof shoe covering material of the present invention, a gap is provided between the front covering portion having a waterproof structure and the back covering portion made mainly of soft urethane foam having a heat retaining property so that the peripheral edge is covered. Since it is sewn, the heat retention can be further improved by the voids, and the waterproof tape is covered and protected by the back cover, so peeling and abrasion due to the use of waterproof shoes are prevented and durability Is improved. As for the waterproof structure of the front cover, the urethane resin layer is laminated on the back side of the suede-like synthetic leather, and the waterproof tape is welded to the back side of the seam so that it will not enter the voids, but if there is moisture However, since the back cover part is made of soft urethane foam as the main material, it is possible to prevent water from reaching the inside of the waterproof shoe.

[0007]

【Example】

 DETAILED DESCRIPTION OF THE INVENTION Hereinafter, a waterproof shoe covering material according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a waterproof shoe cover material 01 of this embodiment is obtained by separately sewing a front cover part 10 and a back cover part 20 with waterproof or water repellent sutures 40, respectively. The peripheral edges of both covered parts 10 and 20 are overlapped with each other to form a void portion 30 and collectively sewn.

The front cover part 10 has a suede-like synthetic leather 11 on its front surface and a urethane resin layer 14 on its back surface, and is sewn with a water-repellent or waterproof sewing thread 40 to be laminated, A hot melt tape 50 as a waterproof tape is melt-pressed on the back surface so as to close the seam 15.

The suede-like synthetic leather 11 comprises a suede layer 12 and a base cloth (for example, a mixed fabric of rayon and polyester) 13 which is the surface of the suede-like synthetic leather 11. High waterproof property is obtained. The suede-like synthetic leather 11 is obtained, for example, by coating the base cloth 13 with a urethane resin solution, wet-coagulating the synthetic leather to prepare synthetic leather, and then buffing this to form the suede layer 12. . Further, for the lamination of the suede-like synthetic leather 11 and the urethane resin layer 14, for example, a release paper (not shown) is coated with a urethane resin solution, semi-dried or dried, and then the surface thereof is coated with an adhesive. The adhesive layer and the base fabric 13 of the suede-like synthetic leather 11 may be laminated. Further, as the sewing thread 40, a waterproof or water-repellent fiber thread or a waterproof monofilament may be used.

Next, the back cover part 20 is made by bonding a nylon tricot 22 as a cloth on the front side of the soft urethane foam 21 and a cotton pile 23 as a cloth on the back side, and using a water-repellent or waterproof sewing thread. It is reinforced and sewn. The cloth may be attached to either the front surface side or the back surface side of the flexible urethane foam 21.

With the above-described structure, as shown in FIG. 2, the waterproof shoe cover material 01 is formed on the cover material B, and the shoe sole C for covering the sewn portion with the upper edge is attached. When finished and used as a general waterproof shoe A, an air layer is formed by the space 30 interposed between the front cover 10 and the back cover 20, so that the heat retention of the entire waterproof shoe A is further enhanced. To be Further, water on the surface of the shoe is prevented by the urethane resin layer 14 forming the front cover portion 10, and water entering through the seams 15 is blocked by the urethane resin layer 14 and the hot melt tape 50. No water is exposed on the back surface of the covered part 10. However, even if water is generated in the voids 30, the back cover part 20 further prevents the water from entering the inside, so that the inner surface of the cover B is not wet. Further, since the hot melt tape 50 is covered and protected by the back cover part 20, it does not wear or peel off, so that the waterproof function and the durability are not deteriorated.

Although the embodiment of the present invention has been described above, the specific configuration is not limited to this embodiment, and the present invention can be implemented even if there is a design change or the like within the scope of the invention. include.

[0013]

[Effect of device]

 The waterproof shoe covering material of the present invention, when used as a waterproof shoe, not only enhances heat retention but also is water repellent or waterproof due to the space between the front covering portion and the back covering portion. The waterproof suture and the waterproof tape prevent water from entering the gap. Since the back cover part is waterproof even if there is water in the gap, it does not wet the inside of the waterproof shoe to prevent this and also protects the waterproof tape. Therefore, its waterproof function and durability are maintained.

[Brief description of drawings]

FIG. 1 is an enlarged view showing a cross section of a part of a waterproof covering material for a waterproof shoe according to an embodiment of the present invention.

FIG. 2 is a perspective view of a waterproof shoe using a cover of a cover material for a waterproof shoe according to an embodiment of the present invention.

[Explanation of symbols]

 01 Waterproof covering material for shoes 10 Surface covering part 11 Suede-like synthetic leather 14 Urethane resin layer 15 Seams 20 Back covering part 21 Soft urethane foam 22 Nylon tricot 23 Cotton pile 30 Void 40 Sewing thread 50 Hot melt tape

Claims (1)

[Scope of utility model registration request] 1. A front cover portion which is made of suede-like synthetic leather and a urethane resin layer laminated on the back surface thereof, and has a waterproof structure obtained by melting and pressure bonding a waterproof tape from the back side of the seam,
After sewn separately with a waterproof or water-repellent sewing thread, a back cover part made of a material in which cloth is attached to one or both sides of a soft urethane foam, and then the front cover part and the back cover part are A lace material for waterproof shoes, characterized in that a gap portion is provided between them, and their respective peripheral edges are overlapped with each other and collectively sewn with the sewing thread.