JP2021049167A - Upper of shoe, manufacturing method of the same, and shoe - Google Patents

Abstract

To provide an upper of a shoe capable of enhancing jointing strength in a joint of different members, and improving protection of an edge part, fitting feeling to foot, and an external appearance, to provide a manufacturing method of the same, and to provide shoes.SOLUTION: In an upper 1 of a shoe, different members 4, 8, 9 are joined by embroideries 6 covering an edge part of at least the one member, and at least the one member 4 forms a three-dimensional shape. A manufacturing method of the upper 1 of the shoe includes the steps of: temporarily sewing and joining the different members so that at least the one member forms a three-dimensional shape; temporarily fixing by running stitches with the periphery of a joint as the base material so that all the members in the temporarily sewn upper have a two-dimensional shape; joining the joint by embroideries so as to cover the edge part of at least the one member; and returning at least the one member 4 to a three-dimensional shape by removing the base material in a place excluding the joint and releasing the running stitches.SELECTED DRAWING: Figure 1

Description

The present invention relates to a shoe upper, a method for manufacturing the shoe, and specifically, to increase the joint strength of joints of different members constituting the shoe upper, and to improve end protection, foot contact, and appearance. Regarding the upper of shoes that can be made, the manufacturing method thereof, and shoes.

The upper of the shoe is sewn with different members in a three-dimensional shape that follows the shape of the foot. The traditional sewing method, single (doubles) tetch, has a simple structure and a high degree of freedom in shape, but there is a risk of fraying at the ends. In addition, the stitch-and-turn manufacturing method has a simple structure and the edges look beautiful, but since a cover is required on the back surface (foot contact surface), the overlap of materials increases, and the foot contact is inferior. In the case of zigzag stitch, the structure is simple and it is possible to join by butt, but the joining strength is weak and there is a high risk of fraying at the end.

End treatment is generally performed to increase the joint strength of the joint, alleviate the unevenness between the joints and improve the foot contact, prevent damage and fraying of the end, and enhance the aesthetic appearance. .. The end treatment is performed, for example, by covering the ends or between the joints with another member, a hot melt sheet, or the like. In such end treatment, since members that are not originally required are added, the weight is increased and the corresponding portion is unnecessarily thickened. In addition, since a member that is not originally required is added, the characteristics of the end portion may change and the foot may be broken and pierced at the time of bending, resulting in poor foot contact. In the case of edge treatment using a thermoplastic polyurethane film (TPU film) instead of a hot melt sheet, the processing is limited to two dimensions and the bonding strength is weak.

On the other hand, Patent Document 1 describes that in the upper of a shoe, the tensile characteristics of the base layer are changed by arranging the strands by embroidery, and the yarn is fixed by the cover layer. Patent Document 2 describes that the upper is composed of two embroidery threads having different thicknesses. Patent Document 3 describes that the elasticity of the upper is controlled by embroidery.

Japanese Unexamined Patent Publication No. 2012-533404 Japanese Unexamined Patent Publication No. 2016-198481 International Publication No. 2018/236346

In order to solve the above problems, the present invention provides a shoe upper, a method for manufacturing the same, and a shoe capable of increasing the joint strength of joints of different members, protecting the edges, and improving the foot contact and appearance. ..

The present invention is, in one or more embodiments, a shoe upper, wherein the different members are one or more selected from the group consisting of satin embroidery and tatami embroidery covering the ends of at least one member. It relates to the upper of a shoe which is joined by embroidery and has at least one member forming a three-dimensional shape.

The present invention is a method for manufacturing an upper of shoes according to one or more embodiments, wherein different members are tentatively sewn and joined so that at least one member has a three-dimensional shape, and the tentatively sewn upper. , The process of temporarily fixing the periphery of the joint to the base material with running stitch so that all the members have a two-dimensional shape, and the satin embroidery and tatami so that the joint covers the end of at least one member. A step of joining by one or more embroidery selected from the group consisting of embroidery, and a step of returning at least one member to a three-dimensional shape by removing the base material at a place other than the joint and unraveling the running stitch. Regarding the manufacturing method of the upper of shoes including.

The present invention relates to a shoe in which the upper of the shoe is integrated with the sole in one or more embodiments.

According to the present invention, it is possible to provide a shoe upper, a method for manufacturing the same, and a shoe that can increase the joint strength of joints of different members, protect the ends, and improve the foot contact and appearance.

FIG. 1 is a schematic surface development view of the upper (left foot) of the shoe according to the embodiment of the present invention. FIG. 2 is a schematic back surface development view of the upper (left foot) of the shoe according to the embodiment of the present invention. FIG. 3 is a schematic surface view of different members constituting the upper (left foot) of the shoe according to the embodiment of the present invention. FIG. 4 is a schematic back view of different members constituting the upper (left foot) of the shoe according to the embodiment of the present invention. FIG. 5 is a schematic surface view of an upper in which different members constituting the upper (left foot) of the shoe according to the first embodiment of the present invention are joined by tack stitching. FIG. 6 is a schematic back view of an upper in which different members constituting the upper (left foot) of the shoe according to the first embodiment of the present invention are joined by tack stitching. FIG. 7 is a schematic surface view showing a state in which the temporarily sewn upper (left foot) is temporarily fixed to the base material by running stitch in the first embodiment of the present invention. FIG. 8 is a schematic surface view showing a state in which the joint portion of the temporarily fixed upper (left foot) is joined by embroidery in one embodiment of the present invention. FIG. 9 is a schematic back view showing a state in which the joint portion of the temporarily fixed upper (left foot) is joined by embroidery in one embodiment of the present invention. FIG. 10 is a schematic cross-sectional view of the embroidery apparatus used in one embodiment of the present invention. FIG. 11 is a schematic perspective view of the shoe (left foot) according to the embodiment of the present invention.

The inventor of the present application has repeated studies to solve the above-mentioned problems. As a result, different members are tentatively sewn and joined so that at least one member has a three-dimensional shape, and in the tentatively sewn upper, the periphery of the joint is used as a base material so that all the members have a two-dimensional shape. After temporarily fixing with running stitch, the joint is joined with one or more embroidery selected from the group consisting of satin embroidery and tatami embroidery so as to cover the end of at least one member, and the base is formed at a place other than the joint. By removing the material and unraveling the running stitch, at least one member is returned to a three-dimensional shape, thereby increasing the joint strength of the joints of the different members that make up the shoe upper, protecting the edges, and hitting the feet. And found that the appearance could be improved. Conventionally, embroidery has been limited to two-dimensional processing, but in the present application, by using a combination of sewing capable of three-dimensional shape processing and embroidery, different members in the shoe upper can be separated from each other at the end of at least one member. At least one member can be formed into a three-dimensional shape while being joined by one or more embroidery selected from the group consisting of satin embroidery and tatami embroidery covering the part, and therefore of the different members that make up the shoe upper. The joint strength of the joint can be increased, and the protection of the end, foot contact and appearance can be improved.

The upper of shoes such as sports shoes is not particularly limited, and includes, for example, different members such as an instep cover covering the instep side, a tongue leather portion, and a shoelace threading portion (also referred to as eyelet). Further, a foot cover or the like that covers the sole side of the foot may be included. The shoelace threading portion may be reinforced with artificial leather or the like.

The different members may be made of different materials or may be made of the same material. For example, a mesh fabric may be used for the instep cover, the sole cover, and the tongue leather portion from the viewpoint of breathability and light weight. The mesh fabric is not particularly limited, and warp knitted fabrics such as single Russell, double Russell and tricot, and weft knitted fabrics such as flat knitting and circular knitting can be used. From the viewpoint of wearability and fit with the foot, it is preferable that at least one member of the different members is a stretchable material. As the elastic material, elastic yarn and inelastic yarn can be used in an appropriate combination.

In one or more embodiments of the present invention, the elastic yarn is not particularly limited, but is, for example, an elastic yarn composed of a polyurethane-based elastic fiber (also referred to as spandex), a polyether ester-based elastic fiber, a nylon fiber, or the like. And so on. The elastic thread may be composed of only elastic fibers, or may be a thread in which elastic fibers and non-elastic fibers described later are combined.

In one or more embodiments of the present invention, the inelastic yarn is not particularly limited, but for example, polyester fibers such as polyethylene terephthalate and polytrimethylene terephthalate; polyamide fibers; polyolefin fibers such as polypropylene; cupra and rayon. , Cotton, bamboo fiber and other cellulose-based fibers; examples thereof include inelastic yarn composed of inelastic fibers such as animal hair-based fibers such as wool.

In one or more embodiments of the present invention, the upper includes an instep cover that covers the instep side of the foot, and the instep cover has a structure in which the tongue leather portion is integrated with the instep cover main body. It is preferable that the portion and the instep cover main body are joined by embroidery covering at least the end portion of the instep cover main body, and the tongue leather portion forms a three-dimensional shape. The joint strength of the joint is high, the protection of the end, the contact with the foot and the appearance are improved, the fit between the instep side and the shoe is improved, and the wearing feeling is excellent when worn for a long period of time. The tongue leather portion may extend to the tip of the toe. The upper may further include a sole cover that covers the entire sole of the foot. In this case, the upper has a bag-like shape with a cuff. This further enhances the integrity of the upper and sole.

In one or more embodiments of the present invention, the shoe upper can be manufactured by the following steps.
(1) A step of tacking and joining different members so that at least one member has a three-dimensional shape (temporary sewing step).
(2) In the temporarily sewn upper, a step of temporarily fixing the periphery of the joint to the base material by running stitch so that all the members have a two-dimensional shape (temporary fixing step).
(3) A step of joining the joints with one or more embroidery selected from the group consisting of satin embroidery and tatami embroidery so as to cover the end of at least one member (embroidery step).
(4) A step of returning at least one member to a three-dimensional shape by removing the base material at a portion other than the joint and unraveling the running stitch (three-dimensional shape forming step).

The tack stitching is not particularly limited, but the sewing thread can be used for the tack stitching, and the running stitch and the embroidery can be performed with the embroidery thread. From the viewpoint of improving the joint strength of the joint portion, the embroidery is preferably performed with an embroidery thread having a breaking elongation of 20% or more. The breaking elongation of the embroidery thread can be measured, for example, based on JIS L 1095 when the embroidery thread is a spun thread, and can be measured based on JIS L 1013 when the embroidery thread is a filament thread. it can.

In the shoe of one or more embodiments of the present invention, the upper of the shoe is integrated with the sole. The method of integrating the upper and the sole is also not particularly limited, and examples thereof include integration by a normal cemented manufacturing method. As the sole, a general sports shoe sole can be appropriately selected and used.

In one or more embodiments of the present invention, it is preferable that the toe portion, heel portion and eyelet portion of the shoe are reinforced with artificial leather, respectively. By reinforcing, the shape of the shoe can be maintained and the holdability can be maintained. Of these, the heel part does not need to be reinforced if true weight reduction is required. Further, if necessary, the surface of the upper of the shoe may be decorated. In one or more embodiments of the present invention, shoelaces may be provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each drawing, the same reference numerals indicate the same parts. The present invention is not limited to the embodiments shown in the drawings below.

FIG. 1 is a schematic surface development view of an upper (left foot) according to an embodiment of the present invention. FIG. 2 is a schematic backside development view of the upper. In this embodiment, the upper 1 includes an instep cover 2 and a sole cover 3.

In the instep cover 2, the tongue leather portion 4 and the instep cover main body 5 are joined by embroidery 6 (satin embroidery and / or tatami embroidery) covering the end portion of the instep cover main body 5. 4 has a three-dimensional shape. This increases the joint strength of the joint and improves end protection, foot contact and appearance. The tongue leather portion 4 extends to the tip of the toe. The width of the tongue leather portion 4 gradually narrows from the ankle side toward the toe tip. The tongue leather portion 4 may have the same width from the ankle side to the toe tip.

The upper 1 has a reinforcing portion 7 of a shoelace threading portion (not shown). The inner instep cover body 5 and the inner sole cover 3 are made of one piece of fabric 8 (one piece), and the outer instep cover body 5 and the outer sole cover 3 are made of one piece of fabric 9 (one piece). It is composed of.

3 to 9 are schematic views showing a manufacturing process of the upper 1. FIG. 3 is a schematic surface view of different members constituting the upper (left foot) of the shoe according to the embodiment of the present invention. FIG. 4 is a schematic back view of the same different member. FIG. 5 is a schematic surface view of an upper in which different members constituting the upper (left foot) of the shoe according to the first embodiment of the present invention are joined by tack stitching. FIG. 6 is a schematic back view of an upper in which different members constituting the upper (left foot) of the shoe according to the first embodiment of the present invention are joined by tack stitching. FIG. 7 is a schematic surface view showing a state in which the temporarily sewn upper (left foot) is temporarily fixed to the base material by running stitch in the first embodiment of the present invention. FIG. 8 is a schematic surface view showing a state in which the joint portion of the temporarily fixed upper (left foot) is joined by embroidery in one embodiment of the present invention. FIG. 9 is a schematic back view showing a state in which the joint portion of the temporarily fixed upper (left foot) is joined by embroidery in one embodiment of the present invention.

First, as shown in FIGS. 3 and 4, the material constituting the tongue leather portion 4, the material 8 constituting the inner instep cover main body and the inner sole cover (inner material 8), and the outer instep cover main body. Prepare the material 9 (outer material 9) that constitutes 5 and the outer sole cover 3, and the material that constitutes the reinforcing portion 7 of the shoelace threading portion (not shown).

Next, as shown in FIGS. 5 and 6, the materials constituting the tongue leather portion 4, the inner material 8 and the outer material 9 were tacked 10 so that the tongue leather portion 4 had a three-dimensional shape. At this time, the material constituting the reinforcing portion 7 was also tentatively sewn 10 with the material constituting the tongue leather portion 4, the inner material 8 and the outer material 9.

Next, as shown in FIG. 7, the temporarily sewn upper 20 was temporarily fixed to the base material 30 with a running stitch 40 so that all the members had a two-dimensional shape. The running stitch 40 can be performed, for example, around the joint portion separated from the joint portion by about 1 to 10 mm in the foot width direction. As the base material 30, for example, a reinforcing material such as a reinforcing non-woven fabric used for embroidery can be used.

Next, as shown in FIGS. 8 and 9, the joint portion between the material constituting the tongue leather portion 4 and the inner material 8 and the joint portion between the material constituting the tongue leather portion 4 and the outer material 9 are formed between the inner material 8 and the outer material 9. Embroidery 6 (satin embroidery or tatami embroidery) is performed so as to cover the end of the material 9. At this time, the material constituting the reinforcing portion 7 was also integrated with the material constituting the tongue leather portion 4, the inner material 8 and the outer material 9 by embroidery. After that, by removing the base material 30 at a portion other than the joint portion (embroidery) 6 and unraveling the running stitch 40, the tongue leather portion 4 returns to the three-dimensional shape, and the upper 1 shown in FIGS. 1 and 2 is returned. Is obtained.

FIG. 10 is a schematic cross-sectional view of the embroidery apparatus used in one embodiment of the present invention. The embroidery device 50 includes a base 51, a needle thread 52, and a bobbin thread 53 wound around a bobbin. The base material 30 is arranged on the base 51, the tentatively sewn upper 20 is arranged on the base material 30, and the embroidery 6 is performed by the needle 52 provided with the needle thread and the bobbin thread 53 wound around the bobbin. Before applying the embroidery 6, the temporarily sewn upper 20 is temporarily fixed to the base material 30 by running stitch so that all the members have a two-dimensional shape. In the drawing, for the sake of explanation, the base 51, the base material 30, the tacked upper 20, and the embroidery (joint) 6 are separated from each other, but they are actually in contact with each other.

FIG. 11 is a schematic perspective view of the shoe (left foot) according to the embodiment of the present invention. In the shoe 100, the upper 1 and the sole 60 are integrated.

In the upper 1, the instep cover 2 further includes shoelace threading portions 12 and 13 through which the shoelace 11 is passed. The shoelace threading portion 12 can be provided by partially integrating a string or the like having a predetermined thickness with the instep cover main body 5 so as to form a threading portion having a predetermined size. The shoelace threading portion 12 may be provided by embroidering around the hole so as to form a hole having a predetermined size in the tongue leather portion 4.

The shoe 100 includes a toe reinforcing portion 14 and a heel counter 15. The toe reinforcing portion 14 can be made of, for example, artificial leather. The heel counter 15 can be made of resin. The heel counter 15 is provided with a lining material. In addition, a cuff 200 is formed.

The embodiments described above should be considered in all respects merely as an illustration of the present invention and are not limiting. Those skilled in the art in the field to which the present invention is related will not deviate from the spirit and essential features of the present invention when considering the above-mentioned teaching contents, even if not explicitly stated in the present specification. Various embodiments can be constructed that employ the principle of.

The upper of one or more embodiments of the present invention can be suitably used as an upper of shoes, specifically sports shoes. Further, the shoes according to one or more embodiments of the present invention can be suitably used as shoes, specifically sports shoes.

1 Upper 2 Foot cover 3 Foot cover 4 Tongue leather part 5 Foot cover body 6 Embroidery (joint)
7 Reinforcement part of shoelace threading part 8 Inner material 9 Outer material 10 Temporary sewing 11 Shoelace string 12, 13 Shoelace threading part (eyelet)
14 Toe reinforcement 15 Heel counter 20 Temporarily sewn upper 30 Base material 40 Running stitch 50 Embroidery device 51 Base 52 Needle 53 Bobbin thread 60 Sole 100 Shoes 200 Cuff

Claims (8)

The upper of the shoes
In the upper, the different members are joined by one or more embroidery selected from the group consisting of satin embroidery and tatami embroidery covering the ends of at least one member, and at least one member forms a three-dimensional shape. The upper of the shoes. The upper includes an instep cover that covers the instep side of the foot.
The instep cover has a structure in which the tongue leather portion is integrated with the instep cover body.
The shoe according to claim 1, wherein the tongue leather portion and the instep cover main body are joined by embroidery covering at least the end portion of the instep cover main body, and the tongue leather portion forms a three-dimensional shape. upper. The shoe upper according to claim 1 or 2, wherein each of the different members is made of a different material or the same material. The shoe upper according to any one of claims 1 to 3, wherein the at least one member of the different members is a stretchable material. It ’s a method of manufacturing shoe uppers.
The process of tacking and joining different members so that at least one member has a three-dimensional shape,
In the tack-sewn upper, a step of temporarily fixing the periphery of the joint to the base material with a running stitch so that all the members have a two-dimensional shape.
A step of joining the joints with one or more embroidery selected from the group consisting of satin embroidery and tatami embroidery so as to cover the ends of at least one member.
A method for manufacturing a shoe upper, which comprises a step of returning at least one member to a three-dimensional shape by removing a base material at a portion other than the joint and unraveling the running stitch. The different members include the tongue leather part and the instep cover body.
The tongue leather portion is joined to the instep cover main body by at least one or more embroidery selected from the group consisting of satin embroidery and tatami embroidery covering the end of the instep cover main body, and the tongue leather portion is three-dimensional. The method for manufacturing an upper of a shoe according to claim 5, wherein the shape is formed. The method for manufacturing a shoe upper according to claim 5 or 6, wherein the embroidery is performed with a thread having a breaking elongation of 20% or more. A shoe in which the upper of the shoe according to any one of claims 1 to 4 is integrated with the sole.

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