JPH08196301A - Underground - Google Patents

Abstract

(57) [Summary] [Purpose] To provide underground where the original lightness and ground contact feeling are not impaired and the toe protection is great. [Composition] A protective body that is shaped to cover the thumb and four fingers of the upper and is integrally formed with reinforcing ribs in the form of stripes or grids in the underground where the grounding bottom is attached to the upper, A basement characterized in that the thumb and four fingers of the upper are capped outside, and in this state, an adhesive is interposed between the upper and the protective body to bond them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground construction which can be used for civil engineering, construction sites, agricultural work, and various other purposes.

[0002]

2. Description of the Related Art In the conventional underground construction, an upper obtained by stitching cloth and a grounding bottom made of rubber or synthetic resin are fixed to each other by sticking or sewing. Such a basement is widely used because it has a light feeling due to its structure and an excellent ground contact feeling, but there is still a problem in protecting the foot when dropping an article on the toe.

For this reason, it is necessary to cover the outside of the upper with a protective body made of steel plate or the like in the toe of the basement or to interpose the protective body inside the upper. It is already known from the gazette.

However, of these, the former, fairness 3-322
No. 41 was detachable, so there was a fear that it might come off during use. In addition, since such a protective body is made of steel plate, it must be thickened in order to obtain sufficient strength, and there is a possibility that the weight will increase, the balance will be lost, and the agility will be lacking. It was

[0005] In the latter case, which is disclosed in Japanese Utility Model Publication No. 36-11438, there is a grudge that it takes time to manufacture because the protective body is interposed inside the upper.

[0006] As described above, in each underground where lightness is required, it is necessary to attach a protective body which does not increase the weight of the toes as much as possible and has sufficient strength.

[0007]

SUMMARY OF THE INVENTION In view of the above situation, the present invention does not increase the weight more than necessary even when the toe is equipped with a protective body and therefore does not impair the original feeling of lightness, and It is intended to provide underground protection with sufficient protection strength.

[0008]

[Means for Solving the Problems] That is, the gist of the present invention is that, in the case of an underground where the grounding bottom is attached to the upper, it is shaped to cover the thumb and four fingers and has a streak shape or A protective body integrally formed with lattice-like reinforcing ribs is capped on the outside of the upper thumb and four fingers, and in this state, an adhesive is interposed between the upper and both protective bodies to bond them. Every time there is a basement that is characterized.

[0009]

According to the present invention, since the protective body having the reinforcing rib is used, the protective body can be lightened and the underground structure having a large protective strength can be provided.

A description will be given below with reference to the drawings of the embodiments.
In these examples, a protective body in which the thumb portion and the four finger portions are separate bodies is used, but of course, a protective body in which both finger portions are integrated may be used.

FIG. 1 is a perspective view showing an example of the underground construction of the present invention, FIG. 2 is an enlarged sectional view taken along the line AA 'of FIG. 1, and FIG. 3 shows another embodiment of the protective body used in the present invention. It is an expanded sectional view. Although the protective body shown in FIGS. 2 and 3 is a thumb protective body, the four-finger protective body is substantially the same although the shape is slightly different, and is not shown.

In these figures, 1 is an upper, and this upper 1 is composed of a front cloth, a back cloth and an insole.
These are sewn with cloth. Reference numeral 2 denotes a grounding bottom made of rubber or synthetic resin, which is fixed to the upper 1 by a sticking type or a sewn type to form an underground basement. On this ground contact bottom 2, an uneven surface generally called a tread-like shape is formed.

The present invention has such a toe part for each underground,
Thumb protector 3 shaped to correspond to the outer shape of the thumb
And a separate four-finger protective body 4 shaped in a shape corresponding to the outer shape of the four-finger portion is attached to the thumb portion and the outer portion of the four-finger portion by crowning them. The protective bodies 3 and 4 having reinforcing ribs 3A or 3B in the form of stripes or lattices are used.

The two protective bodies 3 and 4 used in the present invention are generally formed of steel plate, but synthetic resin such as reinforced plastic or leather such as cow leather impregnated with synthetic resin is used. It is used by shaping it into a shape corresponding to the outline of the thumb or four fingers. Then, at the time of this molding, the reinforcing ribs 3A and 3B having a stripe shape or a grid shape are integrally formed.

In the case of FIGS. 1 and 2, a large number of laterally extending reinforcing ribs 3A are formed. When such ribs 3A are provided, rigidity can be imparted to the protective body. The thickness can be reduced, and the weight can be further reduced. The reinforcing ribs 3A are not limited to the streak-shaped ribs, and may have grid-shaped reinforcing ribs 3B as shown in FIG.
When the grid-like reinforcing ribs 3B are provided, the directionality is lost and it is more preferable. However, the grid pattern of the grid-like ribs may be a bias pattern, a checkered pattern, or the like. Reinforcing rib 3A,
Although 3B is preferably provided on substantially the entire surface of the protective body as shown in the figure, it may be partially formed.

The protective bodies 3 and 4 having the reinforcing ribs 3A and 3B according to the present invention have uneven portions formed on the surface thereof, and therefore, the upper body as disclosed in, for example, Japanese Utility Model Publication No. 36-11438 mentioned above. When a protective body is provided inside the sheet, it is difficult to apply it because the uneven portion causes a floating portion or a void portion on the surface cloth or the like. On the other hand, in the case of the present invention, since the protective body is used by being crowned on the outside of the thumb portion and the four finger portions, there is no such inconvenience. As shown in the figure, the inner surface (for example, 3C in FIG. 3) substantially conforms to the outer shape of the thumb and the four fingers, and if the ribs 3A and 3B provided with the ribs protruding from this are used, the inner circumference is There is an advantage that the adhesion surface can be maintained and the adhesion to the upper can be ensured.

The height of both protective bodies 3 and 4 in the present invention is
It is convenient to set the bottom surface to be substantially the same as the bottom surface of the grounding bottom when they are bonded, because the toe portion can be protected while maintaining the original shape when pressure is applied from above.

Although illustration is omitted, if a cushioning sheet is interposed between the front cloth and the back cloth corresponding to the toe portion to be crowned with the upper protective body, not only is it useful for protecting the toe but also the protective body is covered. It is convenient in manufacturing because the upper can have a certain tension when being made. In addition, such a cushioning sheet may be interposed by being adhered to the inner surface of the upper cloth or the inner surface of the back cloth of the upper.

[0019]

According to the present invention, which has the above-described structure, the protective body is provided on the toe portion, but since the protective body is formed with the reinforcing ribs, rigidity can be imparted. As a result, there is an advantage that the thickness of the protective body is made as thin as possible, the weight reduction is maintained, and the lightness is not impaired. In addition, when the thumb and the four fingers are separated as the protective body, there is an advantage that there is no restriction on the movement of both fingers and a more light feeling can be maintained.

[Brief description of drawings]

FIG. 1 is a perspective view of each underground showing an embodiment of the present invention.

FIG. 2 is a partial enlarged cross-sectional view taken along the line AA ′ of FIG.

FIG. 3 is an enlarged cross-sectional view showing another embodiment of the thumb protector used in the present invention.

[Explanation of symbols]

 1 ・ ・ ・ ・ Upper 2 ・ ・ ・ ・ ・ ・ Grounded bottom 3 ・ ・ ・ ・ ・ ・ Thumb protector 3A, 3B ・ ・ ・ Reinforcing ribs 4 ・ ・ ・ ・ ・ ・ Four finger protection body

Claims (5)

[Claims] 1. A protective body which is formed in a shape covering the thumb and four fingers of the upper in a subterranean structure in which a grounded bottom is attached to the upper, and integrally formed with stiff or lattice-shaped reinforcing ribs. Is covered outside the thumb and four fingers of the upper, and in this state, an adhesive is interposed between the upper and the protective body to adhere the base. 2. A basement according to claim 1, wherein a protective body having a reinforcing rib whose inner surface substantially conforms to the outer shapes of the thumb portion and the four finger portion and is provided with a rib protruding therefrom is used. . 3. As the protective body, a thumb protective body shaped in a shape corresponding to the outer shape of the thumb portion and a four-finger protective body corresponding to the outer shape of the four-finger portion separately from the thumb protective body are used. The basement of claim 1 or claim 2. 4. The underground system according to claim 1, 2, or 3, wherein a protective body having a height substantially equal to the bottom surface of the ground contact bottom is used. 5. The underground system according to claim 1, claim 2, claim 3 or claim 4, wherein an upper having a cushioning sheet is used at an upper portion corresponding to a portion to be covered with the protective body.