JP2974633B2 - How to make boots - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to boots, and more particularly, to a boot composed of an upper leather portion, an upper portion, and a sole portion, which is comfortable and convenient to wear and has excellent waterproofness as a whole. The present invention relates to a method for manufacturing boots.

[0002]

2. Description of the Related Art FIG.
As shown in (1), a first step of molding the upper member 3 and the bottom member 4 integrally by using a mold using a highly waterproof thermosetting polymer material, and using a flexible material A second step of fabricating and sewing the upper leather member 1 connected with the seam 5 by sewing the lower edge of the lever with the peripheral edge of the upper member 3, and a waterproof layer on the inner surface of the seam 5; And a third step of coating the substrate.

[0003]

However, since the seam 5 is at a considerable distance from the upper end opening of the boot, the tool must be inserted deeply through the narrow opening in order to perform the coating in the third step. Poor workability.

Further, since the constituent material of the upper member 3 is usually the same as that of the bottom member 4 which is hard and resistant to abrasion, it gives a feeling of discomfort to the foot due to friction during walking due to the characteristics of the material. In general, there is a problem that the weight tends to be fatigued due to its weight.

[0005] In view of the above-mentioned problems in the conventional method of manufacturing boots, the present invention first sets the lower edge of the upper leather member on the upper edge of the upper member before connecting the upper member to the upper edge of the bottom member. A method of manufacturing a boot that can be easily coated from the lower edge side of the upper member because a large opening is opened because the seam is not covered with a waterproof layer on the seam and the bottom is not yet covered by coating the seam. The purpose is to provide.

Another object of the present invention is to provide a method of manufacturing a boot which can reduce the weight of the entire boot by making the upper member lighter than the material of the bottom member and which is more comfortable to wear.

[0007]

Means for Solving the Problems In order to achieve the above object, a method of manufacturing a boot according to the present invention comprises the following steps. That is, the first waterproof polymer sheet has a toe leather part at one end that covers the toe in a sealed manner, a heel leather part at the other end, a first upper edge having a first upward opening on the upper side, and A first step of integrally molding an upper member having a lower edge having a first downward opening on a lower side, and another flexible sheet, and a first flexible member and a first flexible member, the first upper edge being mutually lower A second step of producing a slightly cylindrical upper leather member having a second lower edge formed to have a size that allows partial overlap and anastomosis, and a second upper edge formed with an opening for inserting a foot on the upper side. A third seam formed by partially overlapping the second lower edge of the upper leather member and the first upper edge of the upper member and sewing them together;
A step of coating a waterproof layer on the seam from a first downward opening at a first lower edge of the upper member.
And a fifth step of integrally connecting the first lower edge of the bottom member and the upper member formed in advance to form a watertight hermetic structure.

In the present invention, the watertight sealing structure may be such that a waterproof layer is further formed on the surface connecting the upper member and the bottom member, or the bottom member is connected integrally with the upper member. It is more preferable to perform an injection molding integrally with the first lower edge of the upper member.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method for manufacturing a boot according to the present invention will be described in detail based on the best mode for carrying out the invention shown in the accompanying drawings.

As shown in FIGS. 1 to 3, the boot according to the present invention comprises a vertically long bottom member 50, a hollow shell-shaped upper member 20 connected over the bottom member 50, and an upper member 20. And the substantially cylindrical upper leather member 10 connected to the upper side of the upper part are main components.

The method for manufacturing a boot according to the present invention comprises the following manufacturing steps.

First step: A first waterproof polymer sheet is used to press-manufacture the upper member 20 into one sheet by a mold. Examples of the first waterproof polymer sheet include, for example, heat deformable PU resin (polyurethane), PVC resin (polyvinyl chloride), and rubber. As shown in FIG. 3, the upper member 20 includes a toe leather portion 22A that covers the toe in a sealed manner, and an upper leather portion 22 that covers the instep of the foot.
B, a heel leather portion 22C at the other end, a first upper edge 22E having a first upward opening on the upper side, and a first upper edge 22E having a first downward opening on the lower side. 1 lower edge 22D
Is formed. In the present embodiment, the first upward opening at the first upper edge 22E is opened from the upper 22B to the heel 22C, and the first lower edge 2E.
The first downward opening in 2D is open from the vamp 22A to the heel 22C.

Second step: The upper leather member 10 is manufactured from another flexible sheet. As the flexible sheet, for example, any of leather and laser may be used as long as it has waterproofness, and a sheet lighter than the upper member 20 is used.
As shown in FIG. 3, on the lower side of the upper leather member 10, it is sized so as to partially overlap with the first upward opening at the first upper edge 22E of the upper member 20 and sewn. Forming a second lower edge 1OP that can be used. The upper leather member 10 includes a pair of left and right split front leather 1OX and a tongue (not shown) having one end thereof joined to the first upper edge 22E of the upper member 20. Hatome Front Leather 1
0X, and both sides of the tongue are the upper member 2
0 and partially sewn together to form two parallel stitches. Further, the upper leather member 10 is also partially overlapped with the inside of each buckle front leather 10X and connected integrally to sew on the contact surface. Together, two parallel seams 11 are formed vertically.

Third step: The second lower edge 1OP of the upper leather member 10 and the first upper edge 22E of the upper member 20 are partially overlapped and integrally stitched to form a seam 23.

Fourth step: A waterproof layer is interposed between the first downward opening of the upper member 20 and the seam 23 surrounding the first upward opening to form a watertight hermetic structure. The method of processing the waterproof layer is to form a waterproof layer by coating with a waterproof agent, or to coat a waterproof tape on the seam 23 with an adhesive. The first downward opening at the first lower edge 22D of the upper member 20 is the first downward opening of the upper member 20.
Since the size is almost the same as or slightly larger than the upper end edge 22E of the stitches 11 and 23
There is enough space for easy coating inside. In addition, if it is made of non-waterproof fabric, the insole 30 is connected to the first lower edge 22D of the upper member 20 by a known method to form a connection line 31.

Fifth step: The outsole 50 is manufactured by a mold using the second waterproof polymer sheet. Second
As the waterproof polymer sheet, for example, there is abrasion-resistant rubber, and the hardness is higher than that of the first waterproof polymer sheet. The outsole 50 is slightly larger in size than the contour of the first lower edge 22D so as to surround the periphery of the first lower edge 22D of the upper member 20.

Sixth step: As shown in FIG. 2, between the portion where the peripheral edge 51 of the outsole 50 overlaps the insole 30 and the first lower edge 22D of the upper member 20
, A waterproof layer 40 made of a thermosetting material is interposed. The method for forming the waterproof layer 40 includes coating, affixing or injection molding a waterproof material. Therefore, between the first lower edge 22D of the upper member 20 and the peripheral portion 51 of the bottom member 50, a watertight hermetic oval is formed such that water cannot enter the inside from the outside.

Further, as shown in FIGS. 4 and 5, the boot manufactured by the above-described manufacturing process has a shape which is in close contact with the inner surfaces of the upper leather member 10 and the upper member 20, and the upper end edge of the upper member is set to A liner 60 to be sewn to the second upper edge 10Q of the leather member 10 can be provided. This liner 60
Push in so that it sticks to the inside of the boot. Then, an underlay sheet 80 in the shape of a foot is laid on the lower portion 70 of the liner 60.

As shown in FIG. 6, an outsole 50 is injection-molded using a mold so as to be connected to the first lower edge 22D of the upper member 20. A peripheral edge portion 51 'that protrudes so as to cover the first lower edge 22D is formed. In the injection molding method of the outsole 50 ', for example, the upper member 20 is placed in a mold, and is protruded outside the upper member 20 by injection molding.
'Covers the first lower edge 22D of the upper member 20. This provides a sealed structure with good water resistance.

As shown in FIG. 7, an outsole 50 "having a peripheral edge 51" is separately formed and molded.
Is fitted to the first lower edge 22D of the
0 "on the upper edge side of the peripheral portion 51" and the first lower edge 22
A waterproof coating 40 ″ may be applied to the joint surface with D to form a water-resistant sealed structure.

The present invention is not limited to the above-described embodiments, and all those belonging to the means and spirit of the present invention fall within the scope of the present invention.

[Brief description of the drawings]

FIG. 1 is a side view showing a boot according to a manufacturing method embodiment of the present invention.

FIG. 2 is a cross-sectional view of the boot shown in FIG. 1 near a vamp;

FIG. 3 is a perspective view showing the boot (before forming a bottom member) of FIG. 1 upside down.

FIG. 4 is a side view for explaining liner stitching according to the method for manufacturing a putt having a liner of the present invention.

FIG. 5 is a side view in which a part of the boot according to FIG. 4 is cut.

FIG. 6 is a cross-sectional view of the vicinity of a vamp portion of a boot according to still another embodiment in the production direction of the present invention.

FIG. 7 is a cross-sectional view illustrating a method for laterally manufacturing a boot according to still another embodiment of the present invention in the manufacturing direction.

FIG. 8 is a schematic perspective view of a boot manufactured by a conventional manufacturing method.

[Explanation of symbols]

 Upper leather member 10 Second lower edge 1OP Cloth front leather 1OX seam 11 Bottom member 50 Upper member 20 Vamp 22A Upper 22B Heel leather 22C First lower edge 22D First upper edge 22E Seam 23 Insole 30 Connection line 31 Outsole 50 Peripheral edge 51 Waterproof layer 40 Second upper edge 10 OQ liner 60 Lower part 70 Underlay sheet 8 O Outsole 50 'Perimeter 51' Perimeter 51 "Outsole 50" Waterproof coating 40 "

Claims (6)

(57) [Claims] 1. A first waterproof polymer sheet, one end of which has a toe leather portion covering the toe in a sealed manner, a second end forming a heel leather portion, and a first upward opening on the upper side. A first step of integrally molding an upper member having an upper edge and a first lower edge having a first downward opening on a lower side; A second size formed so as to partially overlap the upper end edge of the first
A second step of producing a slightly cylindrical upper leather member having a lower edge of the upper leather member and a second upper edge formed with an opening into which the foot is inserted, and a second lower edge of the upper leather member and the upper A third step of forming a seam by partially overlapping the first upper edge of the member and stitching them together; a waterproof layer is formed on the seam from the first downward opening at the first lower edge of the upper member; And a fifth step of integrally connecting the first lower edge of the bottom member and the upper member formed in advance to form a watertight hermetic structure. . 2. The method for manufacturing a boot according to claim 1, wherein said bottom member is formed by overlapping an insole and an outsole. 3. The method according to claim 2, wherein the insole is connected to the first lower edge of the upper member before the outsole. 4. The method according to claim 1, wherein the fifth step further includes a step of applying a waterproof layer to a connecting surface between the first lower edge of the upper member and the bottom member. 5. The fifth step, wherein the bottom member is injection-molded by a mold so as to be integrally connected to the first lower edge of the upper member, so that the first lower edge of the lower member and the upper member of the upper member are formed. 2. The method according to claim 1, wherein the boot is made watertight. 6. After the fifth step, the upper leather member and the liner which is completely fitted to the back surface of the upper member are integrally attached to the upper leather member with the second upper end edge. The method of manufacturing a boot according to claim 1, further comprising: a sixth step of sewing, and a seventh step of pressing the liner inside the upper leather member and the upper member and forming a backing along an inner surface.