JP2001245704A - Slash molded shoes having high shape-retention - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pair of shoes wherein a resin liquid such as an adhesive does not exude to the inside of the lining, and the shape can be retained to a shape corresponding with the shape of the skin, and in addition, which can be easily and efficiently manufactured. SOLUTION: Raw materials 16 and 17 for shape-retention are fix-integrated by superposing them with the lining at a shape-retention required section, separately from the lining 12. The raw materials 16 and 17 for shape-retention are impregnated with the resin liquid, and hardened into a shape going along a shoe die to form shape-retaining members 18 and 19. By providing such shape-retaining members 18 and 19, the foot touching surface side is covered with the lining, and a comfortable wearing feeling can be ensured. Also, the resin liquid is prevented from exuding to the inside of the lining (foot touching surface side) by the shape-retaining members. Also, the rear end section of the shape-retaining members are superposed with the heel section of the lining 12, and hardened by fix-integrating. Therefore, a deformation due to the stepping on the heel section can be prevented from occurring. In addition, the molding of the shape-retaining members can be performed by utilizing a process wherein the lining is lasted inside the shoe die (last) and attached to the skin 11. Thus, the shape-retention can be performed while corresponding with the shape of the skin, and at the same time, the manufacture can be easily and efficiently performed as well.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-retention slash-molded shoe, which improves the shape retention of a toe, a heel, and the like, improves the comfort such as touching a foot, and can efficiently perform a molding operation. It was done.

[0002]

2. Description of the Related Art Sole-molded slash shoes, which are made of a soft polyvinyl chloride resin and are integrally formed with the sole and the shoe body, are excellent in waterproof / moisture-proof and heat-retaining properties. Is diversified into shoe-type boots.

In such a slush-molded shoe, a slash-molding mold having the same concave portion as the outer shape of the shoe is manufactured by an electroforming method, and a polyvinyl chloride resin containing a large amount of a plasticizer is poured into the slush-molded shoe, and the slush-molded shoe is formed in a short time. After forming a semi-gelled film with a certain thickness on the inner surface by heating, the excess polyvinyl chloride resin that has not been gelled is discharged out of the slush molding mold and the whole is heated to be semi-gelled. The resulting film is completely solidified, and after cooling and demolding, a skin to be a shoe is obtained.

Parts such as a lining (back cloth = inner boot), an insole, and a fastener are sewn and adhered to the inside of the slash-formed skin, and further painted.
Finished into slush molded shoes as the final product.

[0005] In such slash-molded shoes, the rigidity of the skin and the lining attached to the inside thereof is low, and the shape retention of the toes and heels is poor. Feelings of conformity to the feet deteriorate.

Therefore, conventionally, a process for imparting a shape retention property to a portion required for the shape retention such as a toe or a heel of a slash-formed shoe has been performed.

For example, as shown in FIG. 2, a lining 4 in which left and right lining materials 1 and 2 and an insole fabric 3 are sewn together as a method for imparting shape retention to the heel portion of a slash-formed shoe.
Separately, a hard retaining member (counter) on the heel of the insole 5
6 is formed, the midsole 5 provided with the mold retaining member 6 is adhered to the bottom of the skin 7, and the lining 4 is attached to the inside thereof.

In such a structure in which the mold retaining member 6 is formed in advance on the midsole 5 and bonded to the bottom of the skin 7, the shape of the mold retaining member 6 and the shape of the skin 7 do not match, and There is a case where a gap is formed between the mold holding member and the mold holding member.

A slash shoe having high shape retention proposed by the present applicant to solve such a problem is disclosed in Japanese Patent Laid-Open No. 7-1.
No. 95582, and as shown in FIG.
For example, when retaining the heel portion, the heel portions 1a and 2a, which are necessary portions for retaining the left and right lining materials 1 and 2, are cut off, and the portions corresponding to both the heel portions 1a and 2a are bonded. A different material 8 that can be impregnated with the agent, a lining 9 made by sewing the insole cloth 3 to the material, a resin adhesive is applied to the different material 8 on the heel portion of the lining 9, and the material is impregnated. By attaching 9 to the inside of the skin 7 to which the insole 5 has been previously bonded, the slash-molded shoe having high shape retention properties is obtained by bonding and curing the skin 7.

According to the proposed slash-molded shoe, the shape retention is greatly improved by utilizing the synergistic effect of the curing of the resin adhesive itself applied to the different material 8 in the heel portion and the physical curing by adhesion to the skin 7. Can be increased.

[0011]

However, in such a structure in which a resin adhesive is applied to and impregnated with a resin adhesive on the different material 8 of the heel portion, which is a necessary portion for retaining the shape of the lining, and cured to obtain the resin retaining property, If the agent has a low viscosity and is in an undried state, the resin adhesive will seep into the different material 8 and seep out to the inner foot contact surface side. If the adhesive is adhered after it is in a dry state, it will not bleed inward, but it will not be sufficiently adhered to the skin 7 and will peel off, or it will wrinkle without becoming familiar with the inside of the skin 7 After application of the resin adhesive, it is necessary to check the semi-dry state, and there is a problem that manufacturing such as bonding work is difficult.

When the heel portion of the lining 9, which is a necessary part for retaining the shape of the lining 9, is made of a different material 8, the suturing process is increased by the amount of the seam line 8a between the linings 1, 2 and the different material 8, and the usual process is performed. In many cases, the lining members 1 and 2 are made of a stretchable material, and the different material 8 is often made of a material having high impregnation and not stretched. Further, since the three-dimensional shape is used, the stitching lines 8a and the stitching lines 8b with the insole fabric 3 are clean. There is a problem that it is difficult to suture.

Further, by suturing the linings 1 and 2 and the dissimilar material 8, the thread of the suture line 8a goes inward (to the side of the foot contact surface), and a step is formed at the top of the suture line 8a, so that the socks are caught. There is also a problem that the yarn is easily rubbed and cut, and the heel portion is easily deformed by stepping on a step or the like.

The present invention has been made in view of the above-mentioned problems of the prior art, and does not exude a resin liquid such as an adhesive to the inside of the lining (foot contact surface side), and conforms to the shape of the skin. It is an object of the present invention to provide a high-retention slash-molded shoe that can be retained in a predetermined shape and that can be easily and efficiently manufactured.

[0015]

According to a first aspect of the present invention, there is provided a high-retention slush molded shoe according to the first aspect of the present invention. The mold-retaining member to be mold-retained is made of a material for mold-retaining that can be impregnated with a resin liquid, is formed in a shape corresponding to the required part of the mold-retaining, is fixedly integrated over the outside of the lining, and is formed of It is characterized by being impregnated and hardened into a shape conforming to a last.

According to this high-retention slash molded shoe,
Separately from the lining, a mold-retaining material made of a material that can be impregnated with the resin liquid is formed on the outside of the lining and fixed and integrated into the shape required for the mold-retaining part. The material is impregnated with a resin liquid and cured into a shape that conforms to the last, and is provided as a shape-retaining member.The footwear side is covered with lining to ensure comfort, and the outer skin The inside of the lining (foot contact side) by holding the mold with a mold holding member separately fixed and integrated between
The resin liquid does not exude to the lining, and the rear end of the mold-retaining member overlaps the heel of the lining and is fixed and hardened, so even if you step on the heel when wearing shoes, The end serves as a core to prevent the heel from being deformed.

Furthermore, a mold retaining member can be formed by utilizing a process of hanging the lining on a last (last) and attaching it to the skin, and the mold can be retained according to the shape of the skin, and the production is easy and efficient. Will be able to

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the lining comprises a pair of left and right lining materials and an insole fabric, and The material is integrated by sewing over the outside of the lining, and is sewn at the same time as the suturing of both side edges of the pair of left and right lining materials, and the bottom opening edge of the lining material and the It is characterized by being sewn at the same time as the sewing with the peripheral portion of the midsole cloth and integrated.

According to this high-retention slash molded shoe,
The lining material consists of a pair of left and right lining materials and an insole fabric, and the material for retaining the mold provided on the lining is superimposed on the outside of the pair of left and right lining materials and integrated by sewing simultaneously with sewing of the lining material. The opening of the bottom of the substantially cylindrical lining material and the material for the mold-retaining material and the peripheral edge of the midsole fabric are sewn and integrated by sewing, and the material for the shape-retaining material is overlaid on the existing lining. It can be integrated at the same time without increasing the suturing process by itself, and it can be manufactured more efficiently, and the mold retaining member is hardened by sewing and integrating the back end with the heel of the lining. Therefore, even if the heel portion is stepped on when wearing shoes, the rear end portion becomes a core and the heel portion can be prevented from being deformed.

Here, the required shape-retaining portion means either one of the toe portion and the heel portion of the shoe, or both the toe portion and the heel portion.

The material for retaining a mold is a material for a retaining member which retains a mold by impregnating a resin liquid and curing the resin. Any material capable of impregnating the resin liquid may be used. Cloths, knits, tricots, bores and the like, foams such as polyurethane, rubber, vinyl chloride and the like, laminates with synthetic leather, artificial leather and the like can be used.

The resin liquid is a resin for impregnating and hardening the material for retaining the mold, and may be acrylic, polyurethane, polyester, polyamide, epoxy or the like. It is desirable that the adhesive be used as an adhesive with the skin, or an adhesive may be used separately.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the high-retention slash-molded shoe of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of a high-retention slash-molded shoe according to an embodiment of the present invention, in which a heel portion is used as a required portion for retaining a shape.

In this high-retention slash molded shoe 10,
The lining 12 provided inside the skin 11 integrally formed by slash molding is a pair of left and right lining materials 1.
3 and 14 and an insole cloth 15.
A pair of left and right mold keeping materials 16 and 17 having a shape corresponding to the heel portion 12a, which is a necessary mold keeping portion, is prepared.

The materials 16 and 17 for retaining the mold are made of a material which can be impregnated with a resin solution. For example, a non-woven fabric which can be easily impregnated with a resin solution is used, as well as woven fabric, knitted fabric, tricot,
Foams such as bore, polyurethane, rubber, vinyl chloride, etc.
Laminates with synthetic leather, artificial leather and the like can also be used.

The material for retaining the molds 16 and 17 are superimposed on the outer side (skin side) of the heel portion of the lining materials 13 and 14, respectively, so that both side edges (the side edges of the hull and the side edges of the lining materials 13 and 14) when the lining materials 13 and 14 are stitched. Sewn at the same time as the side edge of the heel)
The vertical rear end 12b of a is sewn four times with the lining materials 13 and 14 to be integrated.

The sewing of the material for retaining molds 16, 17 and the lining materials 13, 14 is a material in which the material for retaining molds 16, 17 does not expand, and the material in which the lining material expands. Only sewing is performed, sewing can be easily performed without causing crimping or wrinkling, and the sewing length does not change at all.

In this way, the lining materials 13, 14 and the material for retaining the molds 16, 17 are sewn, and the intermediate bottom cloth 15 is sewn to the substantially cylindrical bottom opening edge to form the lining 12.

The sewing process of the insole fabric 15 is performed in
6 and 17 are simultaneously sewn with the conventional lining material and the insole fabric which are not stitched, and there is no increase in the number of steps, and three pieces of the lining material 13, the material for retaining the mold 16 and the insole fabric 15, or the lining material 14. The sewing is performed in a state in which the three pieces of the material 17 for retaining the mold and the inner bottom cloth 15 are overlapped with each other.

In the lining 12, the material 16 for retaining the mold is attached to the heel 12a of the pair of left and right lining members 13, 14.
17 is sewn integrally at the rear end portion 12b and the bottom portion 12c to form a double, and is outside the lining 12 (skin side).
The resin material is impregnated into the mold retaining materials 16 and 17, and is cured into a shape along the last (last), and is molded into the mold retaining members 18 and 19.

The molding materials 16 and 17 are formed into shoe-shaped molding members 18 and 19 by hanging the lining 12 on a last (not shown).
The resin liquid may be applied to and impregnated in the lining 7, or the resin liquid may be applied to and impregnated in the material 16 and 17 for retaining the lining 12 and then hung on a shoe last.

Then, while the lining 12 is suspended in the shoe last, the resin liquid impregnated in the stock keeping materials 16 and 17 is dried or heated to be hardened into the shape of the shoe last.
19 are molded.

Acrylic, polyurethane, polyester, polyamide, epoxy, and the like can be used as the resin liquid to be applied and impregnated on the mold retaining materials 16 and 17, and the resin having a high hardness or a high degree of cross-linking can be used. Is desirable.

The lining 12 to which the mold retaining members 18 and 19 are attached is coated with an adhesive, bonded to the insole 20, and further coated with an adhesive in the same manner as in the conventional slush-molded shoe manufacturing process. After the skin 11 is hung and adhered, the finished product is finished into a slash-molded shoe by performing painting, binder treatment of a wearing mouth, and the like.

The resin liquid to be applied and impregnated to the mold retaining materials 16 and 17 and the adhesive for bonding the lining 12 to the skin 11 may also be used. You may make it adhere to a skin using a suitable adhesive.

In such a slush molded shoe, the heel is retained by the retaining members 18 and 19 which are hardened in the shape of a last, and the slash molded shoe has high retaining properties.

The shape-retaining members 18 and 19 provided on the lining 12 used for the slush-molded shoe 10 are hardened in a state of being suspended in the shoe last. It can be attached without any gap even when it is
There is no deformation of the outside.

When the resin liquid is applied to and impregnated into the mold-retaining materials 16 and 17, even if the resin liquid may seep to the lining 12 side of the mold-retaining materials 16 and 17, the lining 12 Is placed, so that the feet do not touch directly, the comfort does not deteriorate, and it is not necessary to check the semi-dry state of the resin liquid and move on to the next step, and the amount of resin required for mold retention The liquid can be applied and impregnated, which simplifies manufacturing.

Further, since the shape retaining members 18 and 19 are fixedly integrated with the lining 12 at the rear end portion 12b and the bottom portion 12c, even if the heel portion is stepped on when wearing shoes, the shape retaining members 18 and 19 can be formed. It is possible to prevent the heel portion from being deformed or bent with the rear end serving as a core.

Further, when another mold retaining material 16 or 17 is overlapped on the necessary part of the lining 12 to be sewn and integrated, the sewing length is increased or the sewing process is not performed. It is not necessary to change the material, it is sufficient to simply stack the materials, and it is easy to manufacture.

As described above, in the high-retention slash-molded shoe 10, since the lining 12 and the retaining members 18, 19 are provided separately, the lining 12 can have functions necessary for comfortable wearing. At the same time, the heel portion is fixedly integrated with the functions required for the shape retaining members 18 and 19.
In addition, it is possible to obtain a high shape retention such as preventing deformation when stepping on when putting on shoes, and to facilitate manufacture.

In the above-described embodiment, the case where the heel portion is the required shape retaining portion has been described. However, the toe portion may be the required shape retaining portion, or both the heel portion and the toe portion may be the required shape retaining portion. Further, it is also possible to set another part as a necessary part for retaining a shape, and apply a resin liquid to a material for retaining a shape having the same shape as the required part for retaining a shape, and impregnate the material with the resin liquid, and then cure the material while attached to the last. .

Further, the fixing means for fixing and integrating the mold-retaining material to the necessary part of the lining is not limited to sewing, but may be fixed with a stapler or other means such as an adhesive. May be.

Further, the target slash molded shoes are:
The shape of the boot is not limited to the shoe, but the shape of the boot is not limited at all, and can be widely applied to shoes using a skin formed by slash molding.

[0045]

As described above, the first aspect of the present invention is as follows.
According to the high-retention slash-molded shoe described, the lining is formed of a material for the lining which is formed in a shape corresponding to the required shape holding portion separately from the lining, and is formed of a material which can be impregnated with the resin liquid. It is fixed on the outside and fixed and integrated.This material is impregnated with a resin liquid and cured to the shape of the last, and is provided as a shape-retaining member. Comfort can be ensured, and by holding the mold with a mold holding member separately provided between the outer skin and the outside, the resin liquid does not seep into the inside of the lining (foot contact surface side), and the lining The process of hanging a mold (last) and attaching it to the skin can be used to form the shape retaining member, and the shape can be retained according to the shape of the skin, and the production can be performed easily and efficiently.

According to the high-retention slash-molded shoe of the second aspect of the present invention, the lining material is composed of a pair of left and right lining materials and an insole fabric, and the material for retaining the shape provided on the lining is a pair of left and right lining materials. Is sewn at the same time as the lining material is sewn on the outside of the lining material, and the bottom opening of the substantially tubular lining material and the mold retaining material and the peripheral edge of the inner bottom fabric are sewn together by sewing. As a result, the material can be integrated without increasing the suturing process simply by stacking the material for mold retention on the existing lining, and it can be manufactured more efficiently. Since the heel portion is sewn and integrated and hardened, it is possible to prevent the heel portion from being deformed due to the rear end portion serving as a core, even when the heel portion is stepped on when wearing shoes.

[Brief description of the drawings]

FIG. 1 is an assembly configuration diagram of a high-retention slash-molded shoe according to an embodiment of the present invention, in which a heel portion is used as a required shape retention portion.

FIG. 2 is an assembly configuration diagram when a mold is retained by a mold retaining member formed on a conventional insole material.

FIG. 3 is an assembling configuration diagram in a case where a conventional lining is used to hold a part of a different shaped material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 High-retention type slash-molded shoe 11 Skin 12 Lining 12a Heel part (required part for retaining shape) 12b Rear end part 12c Bottom part 13,14 Lining material 15 Medium bottom cloth 16,17 Material for retaining shape 18,19 Retaining member 20 Medium Bottom material

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F050 AA01 AA06 BA02 BC07 BC20 BF02 BF14 HA26 HA28 HA55 HA84 KA09

Claims (2)

[Claims] 1. A mold-retaining member which can be impregnated with a resin liquid, wherein a mold-retaining member provided on a mold-retaining necessary portion of a lining provided inside a slash-formed skin is made of a material for retaining a resin. Characterized in that the slash-molded shoe has a shape corresponding to that of the slash-molded slash-molded shoe, which is fixed to and integrated with the outside of the lining, and which is impregnated with a resin liquid and cured and molded into a shape along the last. . 2. The lining comprises a pair of left and right lining materials and an insole fabric, and the material for retaining a shape is integrated by sewing over the outside of the lining. And sewn simultaneously with stitching of both side edges of the lining materials, and sewn at the same time as stitching of a bottom opening edge of the lining material and a peripheral edge of the midsole cloth, and are integrated. Item 7. A high-retention slash-molded shoe according to item 1.