JPH09304A - Safety shoes - Google Patents

Abstract

PURPOSE: To prevent impairing of stability and safety in walking by easing sharp bending of uppers inward to keep the uppers from coming in contact with feet so that user's feet will not move in shoes, therefore do not come in contact with the box toes. CONSTITUTION: At least two recessed grooves 23 are arranged at the right angle to the direction of a top line 21 from the opening part side of a box toe 5 and have each a width of 1mm-5mm, preferably about 3mm and a depth of about 1/10-2/3, preferably about 1/5 as large as the thickness of the uppers 3 inside the uppers 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety shoe having a toe core inside the upper, and in particular, when the upper of the safety shoe bends at the time of walking etc. Regarding improvement of safety shoes to be relaxed.

[0002]

2. Description of the Related Art Conventionally, safety shoes have a steel toe core (the toe core does not bend even when the shoe is bent) attached to the inside of the instep which constitutes the toe part due to its function, and the operating environment is generally The thickness of the upper of ordinary shoes is 1.6 mm because it is tougher than shoes.
On the other hand, safety shoes have a large thickness of about 2 mm, which gives them robustness and durability.

Therefore, as shown in FIG. 3, when the upper 3 of the safety shoe bends during walking or the like, the foot 11 hits the bending portion 13 on the inner side of the upper 3 to cause a pain problem. In many cases, the solution to this problem is to increase the shape of the toecap 5 or the upper 3
The technical means such as softening the material has been adopted. In addition, 7 and 9 show an outsole and an insole.

[0004]

However, as shown in FIGS. 4 and 5, when the shape of the toecap 5 (FIG. 3) is increased, the safety shoe 1 has a toe portion 3A whose height is a dotted line. The problem of expanding in the direction of the arrow p0 and hitting the foot 11 as described above is solved, but the foot 11 moves a lot in the shoe 1 and the foot 1
1 has a poor holding property and is difficult to walk, and stability and safety during walking are impaired. In addition, the arrow left / right direction p1
It also has the drawback that the toe 3A is greatly expanded in the lateral direction on the p2.

When the material of the upper 3 is made soft, the foot contact is reduced, but the durability is reduced. Alternatively, the shape of the safety shoe 1 changes due to the expansion of the upper 3 with use, the size of the underfoot increases, the foot 11 moves inside the shoe 1, and the foot 11 and the shoe 1 have an initial positional relationship. However, there is a problem that the foot 11 easily moves to the front part of the shoe 1 and the fingertip of the foot 11 hits the toe core 5 and is damaged.

In order to solve the above problems, the object of the present invention is to alleviate the sharp bending phenomenon of the upper inward direction, prevent the upper from hitting the foot, and move the foot in the shoe. It is to provide safety shoes that do not hit the toe and do not impair the stability and safety when walking.

[0007]

In order to achieve the above object, the present invention relates to a safety shoe having a toecap inside the upper, in a direction from the opening side of the toecap to the direction of the mouth opening. A safety shoe comprising at least two recessed grooves provided at right angles.

According to one aspect of the present invention, the groove is provided inside the upper or in the interior material for lining the upper.

According to another aspect of the present invention, the groove has a width of about 1 mm to 5 mm, preferably about 3 mm.

According to still another aspect of the present invention, the groove has a depth of about 1/10 to 2/3, preferably about 1/5 of the thickness of the upper.

[0011]

By adopting the safety shoe of the present invention, at least two recessed grooves are provided in the direction perpendicular to the mouth direction of the footwear from the opening side of the toe box, and these recessed grooves are inside the upper. By setting the width to about 1 mm to 5 mm, preferably about 3 mm, and the depth to about 1/10 to 2/3 of the thickness of the upper, preferably about 1/5, the inner direction of the upper The sharp bending phenomenon of the above is alleviated, the foot contact of the upper is prevented, the foot does not move and hit the toe in the shoe, and the stability and safety during walking are not impaired.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a schematic configuration diagram of an embodiment of the present invention. FIG. 1 (A) is an external view in the upper direction, and FIG.
FIG. 2 is a cross-sectional view of the inside of the front leather of FIG. 1, FIG. 2C is a cross-sectional view of the main part of FIG. 1 and 2, the safety shoe 15 has a toecap 5 attached to the inside of a toecap 17 that constitutes the tip of the upper 3.
At least two groove grooves 23 provided in the direction perpendicular to the direction of the shoe opening 21 from the opening 19 side of the toe core 5, in the present embodiment, three concave grooves 23 are provided inside the bent portion 13 of the front leather 17. It is provided.

The recessed groove 23 is formed by a compression method using a press (not shown), a shaving method using a raised rotor (not shown), or a punching process when it is provided in the interior material for lining the upper 3 (not shown). It is formed by removing the concave groove portion or the like.

In consideration of the hardness of the front leather 17, the number w of the groove 23 is taken into consideration so that the front leather 17 is not bent sharply when it is bent, and its width w is about 1 mm to 5 mm, preferably 3 mm. And the depth d1 is 1/10 of the original thickness d
It is about 2/3, preferably about 1/5.

Further, by setting the distance e to be about 2 mm to 3 mm, the bent portion 13 is flexibly curved, prevents the foot from hitting, and maintains the optimum state of the shoe 15 without impairing its durability. , The width w, the depth d1 and the interval e of the groove 23 are selected. The depth d1 of the concave groove 23 is 1
If the thickness of 7 becomes thinner, the strength may decrease proportionally, but if it is ⅕ of the thickness d of the leather 17 (usually 2 mm), the thickness of general shoes is 1.6 mm. It is possible.

As described above, according to the present invention, the concave groove 23 is provided as at least two easily bendable portions when the front leather 17 of the safety shoe 15 bends while walking. Leather 17
The phenomenon in which the inner bent portion 13 bends at an acute angle is alleviated, and the foot 11 can be prevented from hitting.

The present invention is not limited to the above embodiment, but can be implemented in other modes by making appropriate design changes. For example, the concave groove 23 in this embodiment is It is provided inside the leather 3 so as not to be seen from the outside, but it may be provided on the front side of the upper 3 decoratively by, for example, a gentle curve without impairing the appearance.

[0019]

As is apparent from the above description, the safety shoe of the present invention is provided with at least two recessed grooves in the direction perpendicular to the mouth direction of the footwear from the opening side of the toecap. This groove is inside the upper and has a width of 1 mm to 5 mm, preferably 3
By setting the depth to about 1 mm and the depth to about 1/10 to 2/3, preferably about 1/5 of the thickness of the upper, the problems of the conventional technology can be easily solved, and the inner direction of the upper can be improved. The effect of relaxing the sharp bending phenomenon of the upper part, preventing the upper foot from hitting the foot, preventing the foot from moving in the shoe and hitting the toecap, and not impairing the stability and safety during walking Play.

[Brief description of drawings]

1A and 1B are schematic configuration diagrams of an embodiment of the present invention, in which FIG. 1A is an external view in the upward direction, FIG. 1B is an inner development view of the front leather of FIG. 1A, and FIG. 8B is a cross-sectional view of the main part of FIG.

2 is a cross-sectional view of the safety shoe according to FIG. 1 in a bent state.

FIG. 3 is a sectional view of a conventional safety shoe in a bent state.

4 is a front external view of FIG. 3. FIG.

5 is an external plan view of FIG. 3. FIG.

[Explanation of symbols]

 3 Upper 3A Toe 5 Toe 11 11 Foot 13 Bend 15 Safety Shoes 17 Leather 23 Groove

Claims (4)

[Claims] 1. A safety shoe having a toe core inside the upper, comprising at least two recessed grooves provided at a right angle from the opening side of the toe core to the direction of the mouth opening. And safety shoes. 2. The safety shoe according to claim 1, wherein the groove is provided inside the upper. 3. The safety shoe according to claim 1, wherein the groove has a width of 1 mm to 5 mm, preferably about 3 mm. 4. The safety shoe according to claim 1, wherein the groove has a depth of 1/10 to 2/3 of the thickness of the upper, and preferably 1
Safety shoes that are characterized by about / 5.