JP5225877B2 - shoes - Google Patents

Description

  The present invention relates to a shoe equipped with a cover body that covers the tip of the shoe.

In addition to the basic function of walking, shoes are required to have functions according to usage conditions. For example, when it is necessary to protect a toe part from an impact and abrasion, the toe protector for shoes of patent document 1 etc. are used. In addition, there is a shoe having a toe protection function, in which a hard tip is built in the upper of the shoe tip.
In a shoe with a built-in hard tip, it is necessary to bring the upper into close contact with the surface of the built-in tip so as not to cause wrinkles or bending on the upper. Therefore, a so-called suspending operation is performed in which the upper is pulled and brought into close contact with the surface of the tip, and at the same time, the lower end of the upper is bonded to the back surface of the midsole.

JP 2004-121726 A

The above-mentioned suspension work required when forming the upper with natural leather requires dedicated mechanical equipment and work with a specified number of man-hours, so we want to omit it from the viewpoint of reducing work man-hours and reducing costs. It has become one of the work.
In addition, shoes with a built-in hard toe are shoes that emphasize the protection function of the toes, but on the other hand, a shoe that does not have a built-in hard toe with the same external dimensions may be required. . For example, shoes used by fire brigades, rescue teams, etc. at disaster sites use shoes with a hard toe built in from the viewpoint of improving the safety of the members. However, on the other hand, since shoes are consumables, it is desirable that shoes used for training should be low in cost while being close to the shoes used in the field, and are used for daily training. It is desirable that it is comfortable and is as durable as possible.
In addition, since conventional safety shoes generally have a shell made of natural leather, when the shoe tip part hits or rubs against a hard object, it is stretched in a tensioned state on the surface of the hard tip core. In some cases, the torso was exposed due to the upper shell being scraped or torn.
The present invention has been invented in view of the above points, and is a shoe having the same appearance as a shoe incorporating a hard tip, but it is cheaper and improves comfort and durability instead of a hard tip. It is an object of the present invention to provide a shoe provided with a tip of a soft material that can be made. Furthermore, it is an object of the present invention to provide a shoe structure and a part for forming the shoe, which can omit a suspension work when manufacturing a shoe with a built-in lead.

In order to solve the above problems, the first means according to the present invention has the following configuration. That is,
A shoe having a shoe sole and an upper body provided on the shoe sole,
The upper body includes an outer cover that covers the upper part of the foot excluding the toe part and the periphery thereof, an inner cover that is attached to the inner surface of the outer cover and that covers at least the toe part, and the foot It has a cover body made of rubber or synthetic resin that covers the surface of the inner cover that covers the tip,
The inner surface of the cover body is sewn to the surface of the front end portion of the outer cover at the rear end portion, and a space is formed between the inner surface of the cover body and the inner cover. And

Moreover, the 2nd means which concerns on this invention has the following structures in the said shoes. That is,
A soft tip core formed as a shell made of rubber or synthetic resin is mounted in a space formed between the cover body and the inner cover.

The third means according to the present invention has the following configuration in the shoe having the first means.
That is,
A hard tip formed as a shell made of steel or a hard synthetic resin is mounted in a space formed between the cover body and the inner cover.

A fourth means according to the present invention has the following structure in a shoe having the first to third means. That is,
A conductive member for electrically conducting the front and back is provided on the inner bottom forming the bottom surface of the upper body, and the shoe sole and the cover body are formed of conductive rubber or a synthetic resin material. .

The shoe according to the present invention is configured to cover the shoe tip portion with a cover body formed of rubber or a soft synthetic resin, instead of covering the shoe tip portion with an upper made of natural leather or synthetic leather. . Therefore, since there is no possibility that wrinkles or bends are generated in the shoe tip portion, there is a manufacturing effect that a suspending operation required when natural leather or synthetic leather is used is unnecessary.
In addition, since a gap (space) is provided between the inner surface of the cover body and the inner cover which is the front and back, a soft tip or a hard tip can be selectively attached to the gap. It can be done. Therefore, on the same production line, there is an effect that shoes having different specifications can be formed simply by selecting the presence or absence of a leading edge or selecting the leading edge.
In addition, even if a hard tip is attached in the above specifications, the cover formed on the shoe tip is not tensioned, so even if it hits a hard object, the tear tip is widened at once and the tip is exposed. There is no such thing as letting
Furthermore, the shoe sole and the cover body are made of a conductive material, and a conductive member is used to electrically connect the insole surface exposed on the inner surface of the shoe and the insole back surface in contact with the shoe sole, thereby charging the wearer. The static electricity can be released to the ground through the shoe sole or the cover body.

It is a side view showing an example of shoes concerning the present invention. It is explanatory drawing of the cover body used for this invention. It is an exploded view of each component used for this invention. It is explanatory drawing regarding the creation procedure of the shoes which concern on this invention. It is explanatory drawing of the upper body of the shoe which concerns on this invention.

Hereinafter, embodiments for carrying out the invention will be described with reference to the drawings. FIG. 1 is a side view illustrating an example of a shoe according to the present embodiment.
A shoe 1 shown in FIG. 1 is a shoe in which an ankle portion used for a disaster site or training is long formed by a fire brigade. The shoe 1 is formed by an upper body 3 with a rubber cover body 2 covering the tip of the foot at the tip, and a shoe sole 4 provided on the lower surface of the upper body 3.

FIG. 2A shows an external perspective view of the cover body 2 attached to the shoe tip portion (toe portion) of the upper body 3.
The cover body 2 is integrally formed as a rubber saddle-shaped body having a predetermined thickness, and has a curved surface 5 that extends from the tip portion serving as a shoe tip toward the upper surface and both left and right side surfaces. An opening 6 is formed at the rear end, and an opening 7 is formed at the bottom. A flange-like bent piece 9 having a predetermined width is provided on the lower end edge of the cover body 2 in which the opening 7 is formed so as to face inward. A region surrounded by the bent piece 9 is an opening 7.
Moreover, the cover body 2 in this Embodiment is formed so that it may have electroconductivity by integrally forming using the rubber | gum which mixed electroconductive materials, such as carbon black, as an optimal Example. In addition, the material which comprises the said cover body 2 is not restricted to rubber | gum, A synthetic resin and another material may be used if it has the intensity | strength equivalent to the said rubber | gum, and the softness | flexibility which has electroconductivity.
The cover body 2 having the above-described structure is sewn with a sewing thread to the tip of an upper part (a jacket 15 described later) formed of natural leather or synthetic leather, and is formed entirely of natural leather or synthetic leather. A part of the upper that was used was replaced with one formed of a durable material that can maintain its shape independently.

A groove 8 having a width and a depth of about 0.5 to 1 mm is formed on the surface of the curved surface 5 along the opening 6 formed at the rear end. The groove 8 is a portion constituting a stitching position with the upper body 3 and a sewing thread accommodating portion. In addition, the said groove | channel 8 is the case where it forms by making the thickness of the cover body 2 thin as a concave strip with the said width | variety and depth of about 0.5-1 mm, and the thickness of the both sides or one side of the site | part used as the groove | channel 8 It may be formed by raising the thickness to provide a height difference.
The groove 8 functions as a guide for guiding the sewing needle when the cover body 2 and the upper body 3 are joined (stitched) using a sewing machine, and the groove 8 is worn out to prevent the stitched thread from being exposed. It has the effect | action which prevents. Therefore, the form of the groove 8 is not limited as long as it has the above function or the above action, such as a square groove or a V-shaped groove.

The bent piece 9 is used as a positioning means when the tip 11 is attached later. In order to strengthen this function, as shown in FIG. 2 (b), protrusions 10 are provided on the inner surface of the bent piece 9 and the inner surface along the opening 6. The said protruding item | line 10 is provided so that it may contact | abut to the outer periphery of the mounted tip 11, and, thereby, the position shift after mounting the tip 11 is prevented.
Further, the ridge 10 provided along the opening 6 is in contact with the rear end edge of the tip 11 on one side as described above. 15 tip edges). In other words, the ridge 10 serves as a positioning means for the upper part and the cover body 2, and at the time of manufacture, the two can be connected smoothly by sewing, and the quality of the shoes can be stabilized. It is what you have.

The shoe 1 according to the present embodiment can be worn with either the hard tip or the soft tip as the tip 11. It is also possible not to attach the tip 11. When a hard tip is attached, a shoe that can protect the toe as a safety shoe can be formed. In addition, when a soft tip is attached, it is possible to form a shoe that is comfortable and light in weight and low in cost as compared with the above specifications. Both of these types of shoes can be manufactured using the same equipment.
In the case of the shoes for the fire brigade shown in the present embodiment, what is used in an actual disaster site is one in which an upper is constituted by a heat-resistant and fire-resistant material and a hard tip is attached.
On the other hand, training shoes used for daily training are rubbed against the ground such as asphalt by advancing, or the toes are overworked by water discharge training with one knee, etc. There are cases where durability that is different from that of disaster sites and repeated comfort in consideration of long-time wearing is required. The training shoes shown in this example have a shoe tip made of rubber or the like, and a soft tip or space is formed in the shoe tip, thereby reducing shoe tip damage and improving comfort. It is supposed to be.

Hereinafter, the structure of the shoe 1 will be described along the manufacturing procedure.
FIG. 3 shows several members constituting the upper body 3 of the shoe 1. The upper body 3 has a shell part 12, a tongue piece 13, a neck part 14, a midsole 21, and the cover body 2 described above as main components.
The upper part 12 has a two-layer structure of an outer cover 15 constituting a surface portion and an inner cover 16 provided on the inner surface side. The outer jacket 15 is made of a high-strength fiber material such as natural leather, synthetic leather, cotton or nylon, and is cut into a shape that can cover the upper and side portions of the foot excluding the shoe tip. Is. The inner cover 16 is a cloth body that is attached to the inner surface of the outer cover 15 with an adhesive and is fixed by sewing. The inner jacket 16 is a portion that comes into contact with the user's foot, and a breathable cloth such as cotton or nonwoven fabric is used.
As described above, the outer jacket 15 has a shape of a tip portion that is cut in the middle without covering the shoe tip portion. On the other hand, a portion covering the toe portion (shoe tip portion) is three-dimensionally formed on the inner jacket 16. The toe portion of the inner jacket 16 is a portion that is later affixed to the inner surface of the tip core, and is also a portion that is commonly referred to as the front and back.
The outer cover 15 and the inner cover 16 can be formed not only by a single sheet material but also by a composite sheet having a multilayer structure in which appropriate materials are laminated. . Further, the inner cover 16 does not need to be overlapped with the entire inner surface of the outer cover 15, but may be overlapped to such an extent that at least a portion covering the toe portion (shoe tip portion) can be formed.

The tongue piece 13 is provided on a shoe using shoelaces, and is a member commonly called a tongue. The tongue piece 13 is sewn to the upper rear end side of the upper portion 12 of the tongue piece 13 so that the front portion of the ankle and the front surface of the shin are continuously formed from the rear end side of the upper portion 12. It is intended to cover.
The neck portion 14 is formed as a tubular body having a front surface covering a heel, a heel, and a portion slightly above the heel, and wing pieces 17 and 17 covering the tongue piece 13 are provided on the left and right sides of the front surface side. It has been provided. A plurality of holes 18 through which shoelaces (not shown) are inserted are provided at the edges of the left and right blade pieces 17, 17.
Moreover, the neck part 14 in this Embodiment is provided with the slide-type fastener 19 which extends in the up-down direction on the side surface. By opening and closing the slide-type fastener 19, the side surface of the neck part 14 can be opened and the shoes can be put on and taken off. It can be done. Further, a lid piece 20 is provided at the upper end of the slide fastener 19 so as to cover the knob portion of the slide fastener 19. The cover piece 20 has an action of preventing the sliding fastener 19 from opening by covering the knob portion of the sliding fastener 19 to prevent the slider from moving due to its own weight or contact with other parts.

Next, the order of forming the upper body 3 will be described. In constructing the upper body 3 by the above-described upper portion 12, tongue piece 13, and neck portion 14, first, the upper portion 12 and the tongue piece 13 are sewn, and then the insole 21 is attached to the lower edge of the upper portion 12. Sewing Thereby, the bag-shaped part which covers only a toe part was formed (FIG. 4 (a)).
The insole 21 is obtained by cutting a sheet-like material obtained by pressing and fixing a felt into a sole shape. In this embodiment, a belt-like ribbon 22 formed of a conductive material is provided so as to communicate with the front and back. . The conductive ribbon 22 is provided to release static electricity charged by the human body to the ground via the conductive ribbon 22 and the shoe sole or the cover body 2 containing a conductive material in contact with the conductive ribbon 22. It is. In place of the conductive ribbon 22, a stitch may be provided so that the thread is exposed on the front and back using a conductive sewing thread.

And after positioning the front-end | tip part of the outer covering 15 which comprises the upper cover part 12 in contact with the protruding item | line 10 of the cover body 2 inner surface, the overlapped part is temporarily fixed with an adhesive agent, and the groove | channel of the cover body 2 is carried out. 8. The upper part 12 including the inner cover 16 and the cover body 2 are sewn together while guiding the sewing needle along the entire circumference (FIG. 4B).
Further, in the above state, the cover body 2 is only fixed by the groove 8 at the rear end, so that the cover body 2 is turned up and the cover body 2 is turned over so that the inner cover (front side) 16 is removed. It can be expressed. This operation is performed in a state in which a shoe mold is mounted in the inner cover 16, and the surface of the inner cover 16 that is exposed at this time is a hard tip 11a or a soft soft rubber made in the same shape as the hard tip 11a. A tip 11b is attached. Note that this step is not necessary when the tip is not attached.

After mounting the tip 11a or 11b on the surface of the inner jacket 16, the cover body 2 turned upside down is put back to cover the tip 11a or 11b, thereby completing the mounting of these tips. At this time, an adhesive is applied to the inside of the tip 11a or 11b, and the inner cover 16 is bonded to the inner surface of the tip 11a or 11b.
After the above steps, the rear end of the upper part 12 and the outer periphery of the remaining midsole 21 and the respective edges of the neck part 14 are sewn, and the creation of the upper body 3 as a foot insertion part is completed (FIG. 5).

  Next, the shoe sole 4 is formed on the bottom surface of the upper body 3 formed by the above process. The shoe sole 4 is formed by pressure molding or injection molding with rubber mixed with a conductive material such as carbon black. Since the shoe sole 4 is also bonded to the lower end of the cover body 2, the shoe sole 4 and the cover body 2 are electrically connected. Thereby, the static electricity electrified by the wearer can be released from both the shoe sole 4 and the cover body 2 to the ground.

  The present invention can be used for various work shoes.

DESCRIPTION OF SYMBOLS 1 Shoe 2 Cover body 3 Upper body 4 Shoe bottom 5 Curved surface 6, 7 Opening 8 Groove 9 Bending piece 10 Convex 11 Tip core 12 Back part 13 Tongue piece 14 Neck part 15 Inner cover 16 Inner cover 17 Blade piece 18 Hole 19 Slide fastener 20 Lid piece 21 Middle bottom 22 Conductive ribbon

Claims (4)

A shoe having a shoe sole and an upper body provided on the shoe sole,
The upper body includes an outer cover that covers the upper part of the foot excluding the toe part and the periphery thereof, an inner cover that is attached to the inner surface of the outer cover and that covers at least the toe part, and the foot It has a cover body made of rubber or synthetic resin that covers the surface of the inner cover that covers the tip,
The inner surface of the cover body is sewn to the surface of the front end portion of the outer cover at the rear end portion, and a space is formed between the inner surface of the cover body and the inner cover. Shoes.   The shoe according to claim 1, wherein a soft tip core formed as a shell made of rubber or synthetic resin is attached to a space formed between the cover body and the inner cover.   The shoe according to claim 1, wherein a hard tip core formed as a shell made of steel or hard synthetic resin is attached to a space formed between the cover body and the inner cover.   A conductive member for electrically conducting the front and back is provided on the inner bottom forming the bottom surface of the upper body, and the shoe sole and the cover body are formed of conductive rubber or a synthetic resin material. The shoe according to any one of claims 1 to 3.

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