JP2003093107A - Method of molding heel part of vamp and chemical shoe manufactured by the method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chemical shoe with a vamp face with good appearance, which has the vamp without seams on the surface side of the vamp heel part to prevent rain water from invading inside. SOLUTION: This is a method of molding a vamp heel part of a chemical shoe. A crescent shape thermosetting core 11 with a semicircular shape adhesive layer 16 are put between an inner leather material 10 of a stretchable nonwoven fabric chemical sheet and a stretchable nonwoven fabric outer leather 12 impregnated by an adhesive layer 17 covered by a released paper sheet 18. The inner leather material 10 is adhered by the adhesive layer 16 of the crescent shape core 11 and the inner leather material 10 and the outer leather material 12 are sewed together with the releasing paper sheet 18 along the semicircular periphery of the crescent core 11 to form a heel member 20 with the crescent shape core inside. The released paper sheet 18 is released from the outside face of the outer leather material 12 of the heel member 20 with the crescent shape core inside to expose the adhesive layer 17 to adhere with the inner face of the vamp heel part. The crescent shape core material 11 is heated from the side of the heel member 20 with the crescent shape core inside to cure resin to form into the heel part. The chemical shoe without seams 19 on the vamp surface heel part is manufactured by assembling the heel part formed by this method.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe having an instep made of natural leather or synthetic leather, in particular to a method for finishing an upper heel of a boot and a shoe having a heel formed by this method, particularly a boot.

[0002]

2. Description of the Related Art The heel portion of a conventional shoe, that is, the heel portion on the back side of the upper is formed by inserting a rigid lunar core inside the heel of the upper, and further from the inner surface side of the lunar core. The inner surface of the lumber core is covered with an inner finishing inner material that has a slightly larger peripheral edge than the outer peripheral edge of the semicircular portion of the lunar core. It was locked from the inside. In this case, the perforation is formed on the upper surface of the heel of the shoe by sewing the lunar core together.
In the case of shoes with upper leather made of natural leather, the fibers of the leather move or expand and bury the perforation holes, so
Although the ingress of rainwater etc. is suppressed, in the case of chemical shoes where the upper is made of synthetic leather, the perforation holes are not buried and remain in the same shape, so rainwater etc. will infiltrate through the perforation holes. It was decided to come. Furthermore, the presence of the perforations as described above on the surface of the instep did not look good especially in the case of boots for women.

Therefore, in order to prevent such perforations from being formed on the upper surface of the upper and to make the appearance of a beautiful upper surface, a lunar core inserted on the back side of the upper part of the heel is shaped like a moon from the top. A method has been developed in which a lumber-shaped core is covered with an endothelium material larger than the core to adhere the lunar core to the endothelium, and the peripheral edge of the endothelium material is adhered to the back surface of the upper with an adhesive to form a heel portion. However, with this bonding method, the lunar core is adhered to the upper at the mouth and sleeve of the endothelium material, and to the shoe sole at the bottom of the lunar core, so that the heel has sufficient strength and rigidity. Was not obtained. Further, in order to increase the strength and rigidity of the heel portion, the lunar core is made of a thermosetting material, and the lumber core is thermoset on the back surface of the instep, so that the endothelium material has a problem of waviness due to heating.

[0004]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to heat and cure the entire surface of the lunar core in a chemical shoe, thereby fusing it to the back side of the upper part of the heel and thereby increasing the strength and rigidity. A high heel is formed to prevent infiltration of rainwater as a shoe upper with no perforations on the upper heel surface side, and the upper surface has a beautiful upper surface, and the inside of the shoe heel It is intended to provide a method for forming an upper heel portion by heat curing without waviness, and a chemical shoe, particularly a boot, having a heel portion formed by this method.

[0005]

Means for Solving the Problems The means of the present invention for solving the above-mentioned problems is, in the invention of claim 1, that a lumbar core is attached between the upper skin and the inner skin of the upper heel and the upper heel. In the method of molding, a semi-arcuate body with a slightly smaller diameter is formed between the inner material of the stretchable non-woven chemical sheet and the outer material of the stretchable non-woven fabric whose outer surface is impregnated with the adhesive layer coated with release paper. The lunar core made of a thermosetting material having the adhesive layer on the side of the endothelium material is sandwiched and the endothelium material is adhered by the lunar core adhesive layer, and the endothelium is formed on the semicircular edge of the lunar core. Material and outer material are sewn together with the release paper attached to form a heel member with a lunar core, and the release paper is peeled off from the outer surface of the outer member of the heel member to expose the adhesive layer and enter the lunar core. The heel member is attached to the inner surface of the heel of the upper to form a lunar core A method of forming carapace heel of chemical shoes, characterized in that by heating the Rikakato member side forming a moon core thermosetting heel thermally cured.

According to a second aspect of the present invention, there is provided a chemical shoe having a heel portion formed by the method of the first aspect and having no sewing perforation on the upper surface of the upper heel portion.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a boot for women manufactured by the method for forming the upper heel portion of a chemical shoe according to the present invention, as viewed from the thumb side. 2A and 2B are views showing constituent members of a heel member with a moon-shaped core according to the present invention, wherein FIG. 2A is an endothelium material, FIG. 2B is a moon-shaped core, and FIG. FIG. 3 is a perspective view for explaining a combination state of constituent members of the heel member with a moon-shaped core shown in FIG. FIG. 4 is a perspective view showing the combined heel member with a moon-shaped core. 5A and 5B show the front and back of a heel member with a moon-shaped core, FIG. 5A is a view seen from the inner skin side which is the inner surface of the shoe, and FIG. 5B is a view seen from the outer skin side to be attached to the upper. Fig. 6 shows a backing material for the back of the upper part of the toe of the boot from the fingertips to the heel part. (A) shows the backing material for sticking to the inner surface of the instep on the little finger side, (b) shows the thumb side. The backing material to be applied to the inner surface of the upper of the car, which is divided into the fingertip side and the heel side. FIG. 7 is a perspective view showing a heel member with a moon-shaped core bent in the shape of the heel portion. FIG. 8 shows a manufacturing process of boots, (a) and (b) show a backing material on the inside of the shoe and show the boundaries thereof by dotted lines of hidden lines, and (c) shows a backing material on the heel part inside the shoe. It is a side view which shows the boundary of the moon core which heat-cured by sticking the heel member with a moon core on it by the dotted line of a hidden line.

Embodiments of the invention according to the present application will be described. As shown in FIG. 1, a boot 1 for women, which is a chemical shoe, includes a leg portion 2, a foot portion 3, a shoe sole 4, and a heel 5. The leg portion 2 and the foot portion 3 are formed of an upper 8 and are hung on the sole 4 and the heel 5 to be integrated with the boot 1. The inside of the leg 2 has a fastener 9 and the foot 3
The front part of the is a fingertip part 6, and the rear part of the foot part 3 is a heel part 6. Upper 8 is made of synthetic leather. The upper 8 of the boot 1 of these chemical shoes is made of synthetic leather extending from the foot 3 to the leg 2.

In a normal shoe, generally, as the upper heel portion 7 of the boot 1, a semicircular arc-shaped lunar core 11 is inserted between the upper leather 8 and the inner skin material 10 to form an inner surface of the upper heel portion 7. It is worn and forms a heel-like midsole 24. In the present invention, the lumber core 11 is attached to the inner surface of the upper heel portion 7 made of synthetic leather to form the heel portion. The moon cored heel member 20 in the method of the present invention is shown in FIG.
As shown in (a), (b), and (c) of FIG. The member shown in (a) forms the innermost surface side of the shoe with the inner skin material 10. This inner skin material 10 is a stretchable non-woven chemical sheet. The member shown in (b) is a lunar core 11 made of a thermosetting material.
An adhesive layer 16 is provided on one surface of the moon-shaped core 11 which is a material for forming the inner brim 24. The member shown in (c) is an outer skin material 12 attached to the back side of the instep, and the outer skin material 12 is made of a stretchable nonwoven fabric, and one surface side of the outer skin material 12 is impregnated with an adhesive layer 17.

The shapes of the above members will be described below.
The lunar core 11 has a semi-circular shape and has a lower end 26.
There is a mark notch 25 indicating the center in the part of the chord. The endothelium material 10 has a similar semi-arcuate shape with an outer diameter slightly larger than the lunar core 11, and has a semi-arcuate center and a lower end portion 2.
The center of 6 has a mark notch 25 for displaying the center. The outer skin material 12 further has a semi-arcuate shape with an outer diameter larger than that of the inner skin material 10, and the upper mouth 14 of the semi-circular arc shape.
And the sleeve portions 13, 13 on both sides are protruded from the semi-circular portion of the inner skin material 10, and like the inner skin material 10, a mark notch 2 for displaying the center at the center of the semi-circle arc and the center of the lower end portion 26, respectively.
Have 5.

As shown in FIG. 3, the above-mentioned inner skin material 10, lunar core 11 and outer skin material 12 are a lunar core with an adhesive layer 16 on the outer skin material 12 with a release paper 18 on the lower side. 11, the endothelial material 10 is placed on the moon-shaped core 11, the lower end portions 26 thereof are oriented in the same direction, and the mark notches 25 are aligned to overlap each other, and the endothelial material 10 is attached to the mid-state portion 15 of the moon-shaped core 11. Among the members stacked as shown in FIG. 4, the release paper 18 is placed on the outer skin material 12 existing below the semi-circular arc-shaped portion of the inner skin material 10 outside the semi-circular arc-shaped outer periphery of the lunar core 11. The heel member 20 with a moon-shaped core is sewn and joined as shown in the perforations 19 without peeling. In this stitching,
Since the release paper 18 is applied while the adhesive layer 17 of the outer cover material 12 is covered, the adhesive does not adhere to the sewing press plate of the portion to be sewn when the sewing machine is hooked, so that the sewing work is smoothly performed. FIG. 5A shows the sewn lunar core-loaded heel member 20 as seen from the inner skin material 10 side, and FIG. 5B shows the sewn lunar core-loaded heel member 20 as seen from the outer skin material 12 side. ing.

On the other hand, on the back side of the upper 3 of the foot portion 3 of the boot 1, a backing material made of stretchable woven cloth or the like is used as usual in order to improve the wearing comfort and the internal appearance. Stick it. FIG. 6A shows the adhered side surface of the backing adhesive material 21 which is adhered to the side where the fastener 9 is not formed on the leg portion 2, for example, the inner surface of the foot portion on the little finger side in this embodiment, and FIG. ) Shows the sticking side surface of the fingertip side backing material 22 in front of the fastener 9 on the side forming the fastener 9 on the leg 2 and the heel side backing material 23 behind the fastener 9,
Both are divided by the fastener 9.

In the manufacture of the boot 1 shown in FIG. 8, the upper side of one foot of each of the left and right feet is formed from the upper side of the thumb side and the upper side of the little finger, and the front side of the shin and the rear side of the calf are sewn and joined together. And it is the one-legged upper. Therefore, FIG.
As shown in (a) of FIG. 3, a backing material 21 is attached to the back side of the upper of the foot portion 3 of the boot 1, a fingertip side backing material 22 having a chemical sheet on the back side, and a heel side backing material 23 are attached. To form the backing part 27, and the backing part 27 from the inside at 100 ° C for 10
Heat for 2 seconds to fix. Next, as shown in (b), the end cloths on the front side of the shin and the back side of the rear portion of the calf are sewn to the ground to form a ground stitch portion 28. Finish by rolling.
On the other hand, the fastener 9 is sewn to the side of the upper 8 on the thumb side.

In the upper 8 portion formed by (b), as shown in (c), the heel member 20 with a moon-shaped core is formed into the shape shown in FIG. 7 with the sleeve portion 13 in front of the foot portion 3. The adhesive layer 17 is formed by bending and peeling the release paper 18 from the outer skin 12 side.
After the exposure, the side of the adhesive layer 17 is applied to the heel portion 7 of the back side of the upper 8 to bond the heel member 20 with a moon-shaped core to the back side of the upper 8. The upper ends of the legs 2 of the upper 8 are folded back inward and hooked by a sewing machine, and the work of the upper 8 is completed. The obtained upper 8 is attached to the shoe sole and the heel by a conventional means so as to attach the insole. Then, as shown in FIG. 8 (c), the middle brim of the heel member 20 with a moon-shaped core is heated to about 1 ° C. at about 100 ° C.
The thermosetting lunar core 11 is heated for 0 seconds to be thermoset and molded, and the adhesive strength with the back surface of the upper 8 is increased. Further, the chemical sheet of the fingertip portion 7 is heated at 100 ° C. for about 7 seconds to be molded, and an insole is inserted to complete the boot 1.

[0015]

As described above, the chemical shoe of the present invention has the adhesive layer coated with the inner layer material of the stretchable non-woven chemical sheet and the release paper on the outer surface in the formation of the mid-sole of the shoe heel. It is formed from a heel member with a moon-shaped core that sandwiches a moon-shaped core made of a thermosetting material that has an adhesive layer on the inner skin side between it and a stretchable non-woven skin material Therefore, even if the heel member with a moon core is bonded to the back side of the upper heel part and the moon core is heat-cured, the stretchable endothelium material is formed inside the heel part with a smooth curved surface without waviness. It In addition, since it is possible to bond without causing waviness in this way, it is not necessary to sew a heel member with a lunar core to the upper, so a sewing machine for sewing to the surface of the heel of the upper of a shoe No eyes are formed, so no rainwater will enter from the perforations,
Further, the present invention has an unprecedentedly excellent effect such as a shoe having a beautiful upper skin can be obtained, particularly, a boot having a beautiful heel portion for women can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a boot for women manufactured by a method for forming an upper heel portion of a chemical shoe according to the present invention, viewed from the thumb side.

2A and 2B are views showing constituent members of a heel member with a moon-shaped core according to the present invention, wherein FIG. 2A is an endothelial material, and FIG.
(C) is a figure which shows a skin material.

FIG. 3 is a perspective view for explaining a combination of constituent members of the heel member with a moon-shaped core shown in FIG.

FIG. 4 is a perspective view showing a combined moon-shaped cored heel member.

5A and 5B show the front and back of a heel member with a moon-shaped core, in which FIG. 5A is a view as seen from the side of the inner skin which is the inner surface of the shoe, and FIG. 5B is a view as seen from the side of the outer skin to be bonded to the upper.

FIG. 6 is a backing material for the back of the upper part of the toe of the foot of the boot from the fingertip to the heel part. (A) shows the backing material to be applied to the inner surface of the upper skin of the little finger, (b) shows the thumb. The backing material to be applied to the inner surface of the upper instep is divided into the fingertip side and the heel side.

FIG. 7 is a perspective view showing a heel member with a moon-shaped core bent in a shape of a heel portion.

8 (a) and 8 (b) show a manufacturing process of a boot.
Shows the boundary of the hidden line with a backing material attached inside the shoe, and (c) is a lumber shape that is heat-cured with a heel member with a lunar core attached on the backing material inside the shoe. It is a side view which shows the boundary of a core by the dotted line of a hidden line.

[Explanation of symbols]

1 Boots 2 Legs 3 Feet 4 Sole 5 Heel 6 Fingertips 7 Heels 8 Heels 9 Fasteners 10 Endothelial material 11 Lunar core 12 Outer skin 13 Sleeves 14 Slippers 15 Middle area 16 Adhesive layer 17 Adhesive Layer 18 Release paper 19 Perforation 20 Moon-shaped heeled heel member 21 Backing material 22 Fingertip side backing material 23 Heel side backing material 24 Midpachi 25 Marking notch 26 Lower end 27 Backing part 28 Ground stitch Part 29 Folding part

Claims (2)

[Claims] 1. A method for forming an upper heel by mounting a lunar core between the upper and the inner of the upper heel, and forming an upper heel by an adhesive coated with an inner sheet material of a stretchable non-woven chemical sheet and a release paper. A sandwich-shaped lunar core made of thermosetting material with a semi-circular adhesive layer with a slightly smaller diameter on the inner side between the outer surface of stretchable non-woven fabric with a layer impregnated on the outer surface. The inner material is sandwiched and adhered with an adhesive layer of the lunar core, and at the semicircular arc edge of the lunar core, the inner material and the outer skin material are sewn together with release paper attached to form a heel member with a lunar core. Peel the release paper from the outer surface of the cored heel member to expose the adhesive layer and adhere the lunar cored heel member to the inner surface of the upper heel part, and heat from the lumbar cored heel member side. A thermosetting lunar core is thermoset and molded into the heel. A method for forming the upper heel part of a chemical shoe, which is characterized in that 2. A chemical shoe having a heel portion formed by the method according to claim 1 and having no sewing perforations on the upper surface of the upper heel portion.