JP2011045654A - Work shoe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a work shoe which has flexibility and fitting property during wearing similar to a rubber-soled cloth footgear, eases an impact transmitted from a walking surface, and is excellent in durability which is superior to the rubber-soled cloth footgear. <P>SOLUTION: The work shoe has an upper body having a cylindrical part surrounding the leg part from the heel to the neighborhood of the lower end of the calf and a bag-like foot inserting part covering from the lower part of the cylindrical part to the foot tip. The cylindrical part and the foot inserting part except a shoe tip part are formed by a fabric or a knitted fabric, and a belt-like reinforcing piece is provided on the outer periphery of the heel on the lower end of the cylindrical part. The shoe sole is formed by an outsole and a midsole made by a foaming material filled between the outsole and the bottom part of the upper body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a work shoe used at a construction site or the like, and more particularly to a work shoe intended for use in high-altitude work.

  When building a high-rise building, it is necessary to walk on the assembled steel frame or to bind the reinforcing bars with an unstable scaffold. Many workers engaged in such high altitude work use basement socks. The underground socks are characterized by the fact that the sole (upper) where the shoe sole is thin and the foot is inserted is also formed of a soft cloth, so that the overall flexibility is high and the movement of the accommodated foot is difficult to inhibit.

On the other hand, because the rubber layer that forms the sole of the shoe is formed in the basement socks, if you work on a hard walking surface such as concrete or steel, the impact that cannot be absorbed by the sole will be transmitted to the knees and waist. One feels tired easily.
In addition, when performing rebar tying work while walking on a steel frame or moving between rebars laid in a grid, the shoes used should be in contact with the corners or sharp metal parts of the steel frame, rubbed against concrete, etc. Various stress acts. For this reason, when the underground socks are worn, there is a problem of durability such as the cloth of the bag portion into which the foot is inserted is worn out, the toe portion is worn out and the built-in tip is exposed.

Utility Model Registration No. 2582992

The present invention was invented in view of the above problems, has flexibility according to the underground tabi and fit at the time of wearing, alleviates the impact transmitted from the walking surface, and is more durable than the underground tabi It is an object to provide working shoes.
The present invention aims to solve all of the above-mentioned problems and various problems described in the specification. However, all the above-mentioned problems can be solved only by the invention-specific matters described in each claim. However, the present invention is not limited to the above problem, but is solved on the premise of another configuration naturally provided as work shoes or safety shoes. Moreover, the invention specific matter described in the claims describes an essential configuration that can be established as a patented invention. Therefore, it does not mean that anything other than the invention-specific matters described in the claims is unnecessary, and that the above-mentioned problem and the invention-specific matters described in the claims do not correspond one by one. It goes without saying that the invention is not ambiguous and should not be rejected solely for that reason.

In order to solve the above problems, the present invention has the following configuration. That is, the first means is
A work shoe having an upper body constituting a foot pocket and a shoe sole formed at the bottom of the upper body,
The upper body has a cylindrical part that surrounds the leg part from the buttocks to the vicinity of the lower end of the calf, and a bag-like foot insertion part that covers from the lower part of the cylindrical part to the toe,
While forming the foot insertion part excluding the cylindrical part and the shoe tip part by woven fabric or knitted fabric, a band-shaped reinforcing piece is provided on the outer periphery of the collar part at the lower end of the cylindrical part,
The shoe sole is formed by an outsole made of an unfoamed material that constitutes a grounding portion, and a midsole made of a foamed material that is filled between the outsole and the bottom of the upper body. Providing an upright portion in close contact with the lower outer periphery of the upper body,
A work shoe characterized in that the midsole is provided so that an upper end of the upright portion is disposed on a surface of the upper body corresponding to a position where the reinforcing piece is provided or a position slightly beyond the position.

A second means according to the present invention is a work shoe having the above-described configuration and has the following configuration. That is,
The second means according to the present invention has the following configuration. That is,
A band-shaped reinforcing cloth formed to have the same width as the reinforcing piece is attached to the inner surface of the lower end of the foot insertion portion excluding the tubular portion and the shoe tip portion.

A third means according to the present invention is a work shoe having the above-described configuration and has the following configuration. That is,
The reinforcing piece is formed of a flexible leather material formed into a sheet by pressing and hardening a leather material.

A fourth means according to the present invention is a work shoe having the above-described configuration and has the following configuration. That is,
A tip is provided at the tip of the foot insert, and a protective cover that covers the tip is provided as a part of the foot insert.
The protective cover is formed of natural leather or artificial leather having a wall thickness of about 1 to 2 mm with raised surfaces.

A fifth means according to the present invention is a work shoe having the above-described configuration and has the following configuration. That is,
Forming the thickness of the sole at the forefoot sole to about 1 cm and forming the thickness of the sole at the heel to 2.5-3 cm;
The midsole included in the sole that forms the heel portion is provided so that the maximum thickness is about 1.5 to 2.5 cm.

In the work shoe according to the present invention, the upper body constituting the foot insertion portion is formed of a woven or knitted fabric made of fiber yarn. Therefore, even a half-boot type work shoe having a cylindrical part surrounding the leg part from the buttocks to the lower end of the calf does not hinder the ankle bending action due to the flexibility of the woven or knitted fabric It has become.
Also, since the other part of the upper body is made of woven or knitted fabric, except for the tip part with a built-in tip, the weight can be reduced compared to shoes with the upper body made of natural leather. In addition, work shoes with good workability are provided by a synergistic effect with the flexibility of the upper body.
Further, in a shoe having a hard toe built into the shoe tip, the epidermis covering the tip is easily damaged when the shoe tip is hit against a hard object. In the work shoe according to the present invention, only the cover that covers the tip of the tip is formed of leather having a raised surface, unlike a woven or knitted fabric that constitutes another part of the upper body. Since the tip does not bend, even if a high-strength leather material is used for the part, the flexibility of the entire shoe is not affected. The work shoe according to the present invention has a feature that the tip can be protected without impairing the flexibility of the entire shoe by using a leather material only for the cover covering the tip.

In the work shoes according to the present invention, the upper body is formed of a woven or knitted fabric and a raised leather material. Therefore, since the adhesiveness of the material itself is good, there is a feature that it is possible to simplify the work process without requiring the raising treatment required for improving the adhesiveness with the shoe sole.
In addition, the work shoe according to the present invention forms the shoe sole of the front sole portion as thin as possible and the shoe sole of the heel portion thickly under reasonable conditions considering the wear resistance and slip resistance of the shoe sole. In addition, the midsole is formed as thick as possible. By forming the shoe in this way, the work shoe according to the present invention reduces the impact from the heel to the leg, is easily deformed according to the bending motion of the foot, and can easily sense the feel of the walking surface transmitted from the shoe bottom. It has the characteristics.
In the work shoes according to the present invention, not only the upper body is easily bent, but also the periphery of the heel that does not affect the bending is reinforced with a band-shaped reinforcing piece or a band-shaped reinforcing cloth to make the shape difficult to collapse. As a result, the movement of the foot in the shoe can be restricted (held), so that the sense of unity between the foot and the shoe can be improved.

It is a side view of the outer leg side of the work shoes concerning the present invention. It is a side view of the inner foot side of the work shoes concerning the present invention. It is a side view in each part of the work shoes concerning the present invention. It is explanatory drawing of the strip | belt-shaped reinforcement piece used for this invention. It is explanatory drawing of the strip | belt-shaped reinforcement cloth used for this invention. It is sectional drawing in the heel part of the work shoes concerning this invention. It is explanatory drawing showing the other Example of the strip | belt-shaped reinforcement piece used for this invention. It is an external view of the moon-shaped reinforcement piece used for the conventional work shoes.

Hereinafter, modes for carrying out the present invention will be described. FIG. 1 is a side view of an outer foot side of a work shoe 1 according to an embodiment of the present invention. FIG. 2 is a side view of the work shoe 1 on the inner foot side.
The work shoe 1 has an upper body 2 constituting a foot insertion portion and a shoe sole 3 formed at the bottom of the upper body 2 as main components. The work shoe 1 is a so-called half-boot type shoe, and is a boot-like shoe having a tubular portion 4 that covers a leg portion up to the middle of the ankle and knee (to the vicinity of the lower part of the calf). . A bag-shaped foot insertion portion 5 is integrally provided below the tubular portion 4 so as to cover from the lower portion of the tubular portion 4 to the toes.

Except for the shoe tip portion, the tubular portion 4 and the foot insertion portion 5 are formed of a woven fabric formed by weaving fiber yarns. The woven fabric is used because it is a half-boot type shoe, but does not obstruct various foot bending motions and postures that occur during foot movement and work and is lightweight. Note that a knitted fabric may be used instead of the woven fabric.
Moreover, the woven fabric used for the upper body 3 is formed of a thick woven fabric formed of thick fibers having a wire diameter of about 0.5 mm and fine fibers having a wire diameter of about 0.1 to 0.2 mm as an example. A two-layer structure in which thin woven fabrics are stacked is used. The cloth with the two-layer structure is used because it increases the strength against tearing and abrasion caused by sharp protrusions by using a thick woven cloth on the outer surface, and even if tearing occurs, This is to prevent the progress of the above from being penetrated immediately to the inside even when a hole is formed in the thick woven fabric due to wear.

The cylindrical part 4 of the upper body 2 has a cylindrical shape together with a bent part 6 provided at a position where it abuts against the shin. Female side sheets of fasteners (fasteners provided with a number of fine loops) 7 and 8 are provided on the side surface on the inner foot side of the cylindrical portion 4. On the side surface of the cylindrical portion 4 on the outer foot side, there are provided a belt 10 to which a male side sheet of fastener (a fastener provided with a number of fine hooks) is attached and a belt 12 to which a similar male side sheet is attached. Yes.
The belt 10 and the belt 12 include the bent portion 6 while the work shoe 1 is worn, and the end portion of the belt 10 and the belt 12 are engaged with the opposite sheets 7 and 8 so that the tubular portion 4 becomes the leg portion. It can be in close contact. The upper end of the tubular part 4 is provided so as to coincide with the area where the calf muscles start to swell. Although it differs depending on the size of the shoe, in the case of a shoe of 26 cm size, the height from the upper end of the tubular portion 4 to the inner bottom surface of the shoe is about 180 to 200 cm.

The foot insertion part 5 is a part formed as a bag-like part that covers from the lower part of the cylindrical part 4 to the tip of the foot, and is formed of a cloth body that is continuous with the cylindrical part 4 extending from the back part of the foot to the side part. And a portion having a cover 13 that covers the shoe tip stitched to the tip of the portion.
The cover 13 is formed of leather with raised surfaces such as a back skin and floor leather. Leather with a raised surface has a feature that the surface is soft and cushioning, so that it is not easily damaged even when hit against a hard object such as a steel frame. Since the work shoe 1 according to the present embodiment is formed as a work shoe with a hard toe core for protecting the toe at the tip of the shoe, the shoe tip is hit against a hard object such as a steel frame. If that happens, the part will be sandwiched between the tip and will be easily damaged. In this embodiment, leather having a raised surface is used as a shoe tip cover 13 covering the tip from such a viewpoint.

Further, on the back surface of the cover 13, a front backing cloth 14 formed of a nonwoven fabric or the like covering the foot tip portion is provided (see FIG. 3). The front backing cloth 14 is sewn so as to extend the cloth portion constituting the foot insertion portion 5, and is formed so as to cover from the instep portion to the toe.
When the cloth portions constituting the tubular portion 4 and the foot insertion portion 5, the cover 13 and the front cloth 14 are sewn and joined, the upper body 2 having an opening at the lower end is formed. And the bag-shaped upper body 2 is formed by sewing the insole 15 so as to close the opening. The insole 15 is a plate-like piece formed by laminating a felt sheet, a woven fabric, a non-woven fabric, and the like and pressing them to a thickness of 1 to 2 mm.

When the insole 15 is sewn, the insole 15 and the lower end of the cover 13 are not sewn, and a gap at the lower end opening is formed between the cover 13 and the front backing cloth 14. The gap is a part that accommodates the tip 16, and after the tip 16 is accommodated, the lower end of the cover 13 is suspended (pulled) toward the insole 15 side, and the suspended lower part is formed as a shoe sole. To be fixed at the same time.
A step-out prevention plate 17 having a thickness of about 0.5 mm formed of a spring steel plate or a stainless steel plate is attached to the back surface of the insole 15. The step-out prevention plate 17 is a plate that protects nails, screws, other sharp metals, glass pieces, and the like from sticking into the soles of the feet through the sole, and is formed slightly smaller than the insole 15. .

The structure of the upper body 2 will be described in detail. 3A is a central sectional view showing the work shoe 1 from the inner foot surface side, FIG. 3B is a sectional view taken along line AA ′ in FIG. 2, and FIG. 3C is FIG. A view taken along line BB ′ is shown.
A strip-shaped cloth piece (hereinafter referred to as “band-shaped piece”) 18 having a predetermined width is sewn on the back surface of the tubular portion 4 in the vertical direction. The tubular portion 4 is formed by joining two pieces of cloth constituting both side surfaces and sewing them on the back surface, and the sewn portion is formed vertically along the back surface (achilles tendon side) of the leg portion. Has been. The back reinforcing piece 18 has an effect of protecting the vicinity of the Achilles tendon of the foot by preventing the damage of the sewing thread by covering the sewing portion exposed to the back side and reducing the impact from the outside. . The back reinforcing piece 18 uses the above-described two-layer fabric.

Further, since the back reinforcing piece 18 is attached along the longitudinal direction (vertical direction) in a state of being slightly curved in an arc when being sewn to the cylindrical portion 4, although it is made of cloth, rigidity against bending is generated. . The back reinforcing piece 18 also has a shape holding action that keeps the shape of the tubular portion 4 as a tubular body by this rigidity. The work shoe 1 preferably has flexibility. However, if the work shoe 1 is not rigid enough to stand on the cylindrical portion 4, the shoe shoe 1 is difficult to wear because the opening for inserting the foot does not face upward. The back reinforcing piece 18 provides the upper body 2 with the minimum rigidity together with the reinforcing piece described below, so that it is possible to obtain the convenience when attaching and detaching, the fit feeling when wearing, and the holdability of the foot. It is what.

A strip-shaped reinforcing piece 19 having a predetermined width is provided on the inner side of the lower end of the tubular portion 4 so as to surround the outer periphery of the collar. The lower end of the strip-shaped reinforcing piece 19 coincides with the lower end of the upper body 2, and is sewn to the midsole 15 together with the lower end of the upper body 2.
The band-shaped reinforcing piece 19 is a band-shaped piece with a predetermined width having rigidity enough to be curved in an arc shape along the ridge, and has a shape shown in FIG. The belt-like reinforcing piece 19 used in the present embodiment is formed by forming a sheet obtained by pressing natural leather with high pressure so as to have a width of about 3 cm. As the belt-like reinforcing piece 19 in the present embodiment, a strip-like reinforcing piece formed by superposing a thin piece 20 of about 1.5 cm and a thick piece 21 of about 3 cm is used as shown in FIG. Even a sheet (band-shaped reinforcing piece 19a) formed by a single sheet as shown can be used.

  In addition, a strip-shaped reinforcing cloth 22 is provided at the lower end of the upper body 2 so as to be arranged from both sides to the heel. The belt-like reinforcing cloth 22 has the shape shown in FIG. 5 and is formed to have the same width as the belt-like reinforcing piece 19. The inner bottom 15 is overlapped with the belt-like reinforcing piece 19 at the outer peripheral portion of the bag. Is sewn against. Further, in the front part of the heel, the lower end of the belt-like reinforcing piece 19 coincides with the lower end of the upper body 2, and is sewn to the midsole 15 together with the lower end of the upper body 2. As the belt-like reinforcing cloth 22 according to the present embodiment, the same fabric as the two-layer structure in which the tubular portion 4 and the foot insertion portion 5 are formed is used.

A pad 23 for protecting the Achilles tendon portion and improving the adhesion between the shoe and the foot is provided on the heel portion in the tubular portion 4, and an interior cloth 24 is provided so as to cover the pad 23. The pad 23 is formed as a cushion formed of a foamed sponge-like material, and the interior fabric 24 is formed of a material such as artificial leather or nonwoven fabric that is relatively resistant to friction and soft.
The pad 23 and the interior cloth 24 are formed in a semicircular or semi-elliptical sheet shape as a single part. By arranging these around the heel, the pad 23 and the interior cloth 24 are moved downward from a slightly higher position toward the front. A heel holding portion having inclined side walls is formed.

  A shoe sole 3 formed by injection molding is provided at the bottom of the upper body 2 having the above configuration. The shoe sole 3 is a so-called so-called two-layer sole, and is provided in the middle of the outsole 25 having a grounding surface formed of unfoamed rubber and the outsole 25 and the upper body 2. It is formed by a midsole 26 formed of a foamed material having cushioning properties such as foamed rubber and urethane foam. As the molding material for the midsole, foamed rubber is preferably optimal. The reason is that forming the shoe sole 3 with rubber does not cause hydrolysis, and a shoe sole excellent in heat resistance can be obtained.

Although detailed explanation regarding the formation of the shoe sole 3 is omitted, a shoe mold having a foot shape is mounted inside the upper body 2 in which various parts and the insole 15 have been sewn, and the upper is mounted with the shoe mold. A tip 16 is mounted in the cover 13 at the tip of the body 2, and the upper body 2 is mounted on a mold for forming a shoe sole to form the shoe sole 3 at the bottom. The formation of the shoe sole 3 has two steps. First, a dummy mold having a midsole surface shape is attached to a mold for forming a shoe sole to form an outsole 25, and then the dummy mold is removed. The upper body 2 to which a shoe mold is attached is attached, and foam rubber is injected between the previously formed outsole 25 and the attached upper body 2 to form the midsole 26. The foamed rubber injected between the outsole 25 and the upper body 2 is filled in the mold using the expansion pressure due to foaming, and forms a cushion layer while firmly bonding the outsole 25 and the upper body 2. It is like that.

  FIG. 6 shows a cross-sectional view of the heel portion of the work shoe 1 with the insole 28 placed on the insole 15 removed. Since the heel part is a part where the shoe sole is easily reduced and the flexibility is not required as compared with the front part, the outsole 25 is formed thicker than other parts. Further, the midsole 26 has a standing part 29 over the entire circumference of the shoe sole so as to wrap the lower part of the upper body 2, and the position of the upper end 30 of the standing part 29 is the nearest midsole in the upper body 2. It is formed to be at a position higher than the 15th surface.

  The height h1 of the upper end 30 of the upright portion 29 with respect to the above-described inner bottom surface 15 is not equal in all locations on the outer periphery of the upper body 2, but varies depending on the portion. That is, the height h1 in the portion where flexibility is required is low, and the height h1 is high in the portion where flexibility is not required. Specifically, it is relatively low in the front part from the arch and high in the vicinity of the eaves. In the case of the work shoe 1 according to the present embodiment, the height h1 of the standing portion 29 of the midsole 26 with respect to the midsole 15 surface is formed to be within a range of about 5 mm to 1.5 cm.

Further, the height h2 of the upper end positions of the belt-like reinforcing piece 19 and the belt-like reinforcing cloth 22 described above with respect to the inner bottom 15 surface is formed so as not to exceed about 2 cm. And the height h2 of the upper end position of the strip | belt-shaped reinforcement piece 19 and the strip | belt-shaped reinforcement cloth 22 is formed so that it may become higher than the height h1 of the midsole 26 with respect to the mid-sole 15 surface at least.
In the case of conventional shoes, a so-called moon-shaped reinforcing piece 100 as shown in FIG. On the other hand, in the work shoe according to the present invention, the height of the belt-shaped reinforcing piece 19 corresponding to the moon-shaped reinforcing piece is formed low. Specifically, the height of the upper end of the belt-shaped reinforcing piece 19 with respect to the surface of the insole 15 is preferably about the middle position between the sole and the heel of the wearer. And is set so as to be substantially parallel to the surface of the insole 15.

As described above, the belt-shaped reinforcing piece 19 having substantially the same width is used instead of the moon-shaped reinforcing piece 100 in order not to hinder the bending motion of the foot in the buttocks. The structure of the foot around the heel is hardly bent at the portion below the heel. Therefore, even if a reinforcing piece is provided on the lower side of the periphery of the heel so as to surround the heel, the flexibility of the foot is not hindered. Therefore, in the present invention, the band-shaped reinforcing piece 19 having the above-described shape is used to reinforce the buttocks without hindering the flexibility of the foot.
Moreover, the work shoes which concern on this invention are provided with the strip | belt-shaped reinforcement cloth 22 in each of the right-and-left both sides of shoes. The rear end portion of the belt-like reinforcing cloth 22 is provided so as to overlap with the belt-like reinforcing piece 19 at the same height at the periphery of the collar portion. Moreover, the front-end | tip part of each strip | belt-shaped reinforcement cloth 22 is provided to the position close | similar to the rear end of the cover 13 which is the thick leather which raised the surface.

As described above, the lower portion of the upper body 2 is formed by overlapping fabrics or a thick leather material, and is formed so as to have some elasticity in the thickness direction.
When forming the shoe sole, a shoe mold called “last” is inserted into the upper body 2, and the upper body 2 into which the last is inserted is attached to a mold to perform injection molding. At this time, the lower portion of the upper body 2 is sandwiched between the last and the opening of the mold to prevent the resin from leaking from the opening.
However, if the force sandwiching the upper body 2 is weak, the resin injected into the mold leaks from the gap between the surface of the upper body 2 and the opening of the mold so that the injected resin does not leak. It must be pressurized with a strong force. On the other hand, if the fabric between the molds is thin,
When this pinching force is concentrated locally, the fabric may be cut.
Therefore, the work shoe according to the present invention has a tightening portion by a die around the upper body 2 lower than the other portion so as to elastically receive a pinching force by the die and not cut the cloth. It is formed thick.

In addition, the work shoe according to the present invention has a hard toe built into the shoe tip as a safety shoe. Shoes with a built-in hard torsion need to be in close contact with the surface of the toe by applying tension to the outer skin. Need.
On the other hand, the work shoe according to the present invention only needs to suspend the lower end 27 of the cover 13, and does not need to suspend the cylindrical portion 4 and the foot insertion portion 5 formed of cloth. Therefore, since it is not necessary to suspend the entire lower end of the upper body, it has a structural feature that the manufacturing process can be simplified.

Further, when the shoe sole is formed by injection molding, it is necessary to firmly bond the upper body and the midsole. For this reason, in the case of a general safety shoe using natural leather having a glossy silver surface as an epidermis, a brushing process such as sanding the glossy surface is required to improve the adhesion to the midsole.
On the other hand, the present invention does not use a material that requires raising treatment at the site of adhesion to the shoe sole. More specifically, the work shoe according to the present invention uses a wall leather (1 to 2 mm) having a raised surface already on the cover 13 covering the tip, and the other tubular portion 4 and the foot insertion portion. 5 is a fabric formed by weaving (or knitting) fiber yarns. Since each of these materials is similar to the surface already raised, the adhesiveness with the resin to be injection-molded is very good.
Therefore, the work shoe according to the present invention has a feature that it does not require the raising treatment that has been conventionally required when forming the sole.

  Although the work shoes according to the present invention described above are half-shoe type shoes, the tubular part 4 and the foot insertion part 5 are formed by using a woven cloth or the like to ensure flexibility, and exercise and work of the foot. It has the feature of not obstructing various leg flexing movements and postures that sometimes occur.

On the other hand, the work shoe according to the present invention is formed with a thick midsole of the heel portion acting as a shock absorbing layer, and when walking with a heavy object or when walking on a hard part such as a steel frame or concrete Even so, the shock transmitted to the foot can be reduced.
However, increasing the thickness of the midsole of the heel portion raises the position of the heel from the floor surface, which may be an element that impairs stability for shoes that require safety in high-altitude work. In consideration of the above circumstances, the work shoe according to the present invention has a heel hold and a cylindrical portion 4 and a tubular portion 4 and an action of the band-shaped reinforcing piece 19 provided around the heel, despite the thick midsole of the heel portion. It is possible to prevent deformation of the foot insertion part 5 such as shape loss and waist breakage, and to secure stability at the time of wearing. Further, since the band-shaped reinforcing piece 19 is different from the conventionally used moon-shaped reinforcing piece as described above, the band-shaped reinforcing piece 19 does not hinder the ankle bending movement while ensuring the stability when worn. have.

  INDUSTRIAL APPLICABILITY The present invention can be used for work shoes suitable for work at high places.

DESCRIPTION OF SYMBOLS 1 Work shoes 2 Upper body 3 Shoe bottom 4 Cylindrical part 5 Foot insertion part 6 Deflection part 7,8 Seat 10 Belt 12 Belt 13 Cover 14 Front backing cloth 15 Insole 16 Lead core 17 Depression prevention board 18 Back surface reinforcement piece 19 Band-shaped reinforcement Piece 20 Narrow piece 21 Wide piece 22 Belt-like reinforcing cloth 23 Pad 24 Interior cloth 25 Outsole 26 Midsole

Claims (5)

A work shoe having an upper body constituting a foot pocket and a shoe sole formed at the bottom of the upper body,
The upper body has a cylindrical part that surrounds the leg part from the buttocks to the vicinity of the lower end of the calf, and a bag-like foot insertion part that covers from the bottom of the cylindrical part to the toe,
While forming the foot insertion part excluding the cylindrical part and the shoe tip part by woven fabric or knitted fabric, a band-shaped reinforcing piece is provided on the outer periphery of the collar part at the lower end of the cylindrical part,
The shoe sole is formed by an outsole made of an unfoamed material that constitutes a grounding portion, and a midsole made of a foamed material that is filled between the outsole and the bottom of the upper body. Providing an upright portion in close contact with the lower outer periphery of the upper body,
A work shoe characterized in that the midsole is provided so that an upper end of the upright portion is disposed on a surface of the upper body corresponding to a position where the reinforcing piece is provided or a position slightly beyond the position.   2. The work shoe according to claim 1, wherein a belt-shaped reinforcing cloth formed in a width similar to that of the reinforcing piece is attached to an inner surface of a lower end of the foot insertion portion excluding the tubular portion and the shoe tip portion.   The work shoe according to claim 1 or 2, wherein the reinforcing piece is formed of a flexible leather material formed into a sheet shape by pressing and hardening a leather material. A tip is provided at the tip of the foot insert, and a protective cover that covers the tip is provided as a part of the foot insert.
The work shoe according to any one of claims 1 to 3, wherein the protective cover is formed of natural leather or artificial leather having a thickness of about 1 to 2 mm with a raised surface. Forming the thickness of the sole at the forefoot sole to about 1 cm and forming the thickness of the sole at the heel to 2.5-3 cm;
The midsole included in the sole that forms the heel portion is provided so that the maximum thickness of the midsole is approximately 1.5 to 2.5 cm. Work shoes.