JPH04309302A - Production of waterproof shoes consisting of cylindrical uppers - Google Patents

Abstract

PURPOSE:To prevent the penetration of water from a stitched part by stitching a waist cloth to the cylindrical uppers formed by sewing a cloth to a cylindrical shape and combining the cylindrical uppers which do not expose the sewing thread on the inside surface and a main sole. CONSTITUTION:A back cloth 7 sewn to a cylindrical shape is stitched to the cylindrical uppers 10 formed by sewing the cloth likewise to the cylindrical shape, and thereafter, the waist cloth 2 is stitched to the cylindrical uppers 10 in the state of drawing out the back cloth 7. A resin is then applied to seams 5 from the rear side of the cylindrical uppers 10 to seal the seams and to prevent the penetration of the water via the sewing thread 4. Further, a waterproof tape 6 subjected to a waterproof treatment is stuck thereto and the back cloth 7 in the drawn out state is turned back and inserted into the cylindrical uppers 10, by which the back cloth covering the waterproof tape 6 is laminated on the cylindrical uppers 10. The cylindrical uppers 10 are then stitched together with the back cloth 7 laminated thereon to an insole 13 and is combined with the main sole. The sewing thread 4 does not penetrate the waterproof tape 6 and back cloth 7 of the cylindrical uppers 10 and, therefore, the penetration of the water is prevented.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to waterproofing of the upper seams of general athletic shoes, casual shoes, etc.

0002

2. Description of the Related Art Conventionally, waterproof materials are used as the upper material of shoes. However, when forming shoes, it becomes necessary to sew many decorations, reinforcements, loincloths, etc. to the upper for the sake of design and functionality, and for this reason, a highly waterproof upper material is used. However, water often seeped through the seams, significantly reducing its waterproof properties. or,
In order to prevent water from seeping through the seams, resin was applied from the back side of the seams as a filler, or waterproof tape was applied to prevent water from seeping through.

0003

[Problems to be Solved by the Invention] As described in the prior art, decorations, loincloths, reinforcements, etc. are sewn onto the upper, resin is applied from the back side, and waterproof tape is attached. A lining fabric is layered on top of this to prevent water from seeping through the seams, but it is impossible to sew the ends of the loin cloth unless the sewing thread is exposed to the inside by penetrating the lining fabric. Therefore, water gradually seeps through the seams and permeates the entire surface of the lining fabric due to capillary action, so we have used waterproof upper material, sealed the seams with resin, and pasted waterproof tape. However, it is difficult to achieve sufficient waterproof function. Furthermore, it is extremely difficult to apply the waterproof tape to the narrow part of the toe using the fingertips. The present invention has been made to solve these drawbacks.

0004

[Means for solving the problem] A cylindrical upper made by sewing cloth cut into a certain shape into a cylindrical shape, and a lining cloth and a loin cloth sewn to the cylindrical upper, and sealing the seams from the back side with resin etc. After applying waterproof tape, the already sewn lining fabric is laminated, and the sewing thread does not pass through the lining fabric and is exposed on the inside.It is waterproof and features a cylindrical upper that is combined with the outsole. It provides shoes.

[0005]

[Embodiment] First, conventional sewing for the purpose of waterproofing will be explained based on the drawings. Figure 4 shows conventionally sewn shoes (
1), and FIG. 5 is a cross-sectional view taken along the line A to A in FIG. 4. To explain this drawing, the loincloth (2) and the upper (3) are sewn together with a sewing thread (4), and the seam (5) is sealed by applying resin. Furthermore, waterproof tape (6
) is pasted and laminated with a lining fabric (7), and the sewing thread (4) is not exposed (14) through the waterproof tape (6) and lining fabric (7) to the inside (8). To prevent water from seeping in, use waterproof tape (6
) has been prevented. However, loincloth (2)
The sewing thread (4) penetrates through the waterproof tape (6) and the lining fabric (7) and is exposed on the inside (8) (14) as shown in the cutaway view from B to B in Figure 4 (Figure 6). are doing. Therefore, the thread (4)
Water gradually seeps in through the. Next, the sewing method of the present invention will be explained in detail based on the drawings.

FIG. 1 is an external view of a shoe (1) made by cylindrical sewing according to the present invention. FIG. 2 is a central cutaway view during the sewing of the cylindrical shape. The sewing process will be explained with reference to FIG. First, the lining fabric (7), which is also sewn into a cylindrical shape, is sewn to the cylindrical upper (10), which is made by sewing cloth cut into a certain shape into a cylindrical shape, and then the lining fabric (7) is pulled out (11). ), and then sew the loincloth (2) to the cylindrical upper (10). Next, resin is applied to the seams (5) from the back side of the cylindrical upper (10) to seal them, preventing water from seeping in through the sewing threads (4), and further waterproofing the seams (5). Attach the tape (6), turn over the lining fabric (7) in the pulled out state (11), and attach the cylindrical upper (10).
Insert the waterproof tape (6) into the cylindrical upper (10).
). (See Figure 3)

[0007] Next, a lining fabric (
7), sew the inner sole (13) and combine it with the outsole. The waterproof shoes of the present invention are characterized by the fact that the cylindrical upper (10) and the waist cloth (2) are not sewn together with the lining cloth (7) but are constructed separately. cylindrical upper (1
The sewing thread (4) does not penetrate through the waterproof tape (6) and the lining fabric (7) of 0), so water does not seep through.

[0008]

[Effects] The conventional method of integrally sewing the upper and the loin cloth had the disadvantage that the sewing thread was exposed on the inside of the shoe in several places, and water seeped in from those parts. Because the instep and loincloth are constructed and sewn as separate parts, the sewing threads are not exposed on the inside, making it possible to manufacture completely waterproof shoes that prevent water from seeping through the sewing threads. Ta. In addition, water intrusion from the upper part is completely prevented, increasing the functional value of the product, and by providing a free seam in the upper part, the product value of the design can also be increased. It is possible to provide shoes with high added value.

[Brief explanation of drawings]

FIG. 1 is an external view of a shoe with a cylindrical upper according to the present invention.

FIG. 2 is a central cross-sectional view during the cylindrical sewing process.

FIG. 3 is a cross-sectional view of the part where the lining fabric is laminated on the cylindrical upper and combined with the outsole.

FIG. 4 is an external view of conventionally sewn shoes.

FIG. 5 is a cutaway view taken from A to A in FIG. 4;

FIG. 6 is a sectional view taken from BB in FIG. 4;

[Explanation of symbols]

1. Shoes 2. Loin cloth 3 Instep 4 Sewing thread 5 Seam 6 Waterproof tape 7 Lining fabric 8 Inside 9. Stitching of loin cloth 10　Cylinder-shaped upper cover 11. Pulled out state 12 Bottom 13 Insole 14 Exposure

Claims (1)

[Claims] Claim 1: A cylindrical upper made by sewing cloth cut into a certain shape into a cylindrical shape, with a waist cloth sewn to the cylindrical upper, which combines a cylindrical upper and an outsole without exposing the sewing threads on the inner surface. Method of manufacturing waterproof shoes.