JPH10257902A - The basement, its manufacturing method and the base of the basement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep the shape stability of an arch part of the foot over a long period of time by bending upward the arch part of the foot of a sole due to the existence of a curved forming part of the arch part of the rear sole part to be fitted to the foot at the time of wearing, and interposing a filler cloth piece of the shape of the sole including the arch part of the foot between the sole and the inner sole. SOLUTION: The sole of a rubber-soled sock is divided into a rear sole part 3 and a front sole part 4, and the rear sole part 3 has an arch part 3A of the foot bent upward and is made adhere to the bottom of an upper 1 through a filler cloth piece 5 of the shape of the sole including the arch part of the foot. A reinforcement piece 3C is erected on the rear end of the rear sole part 3, and the upper end thereof is sewn 3D on the joint edge of the upper 1 at need. On the other hand, the joint edge 4B which overlaps the joint edge 3B of the rear sole part 3 is formed in the unvulcanized state, and a reinforcement piece 4A is provided from the tiptoe part of the front sole part 4 to the side part, and made adhere to the joint edge part of the upper 1 at the time of vulcanization forming. Thus, the upward curved forming of the arch part of the foot can be ensured enough, and the form can be held over a long period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a basement, a method of manufacturing the basement, and a bottom of the basement used for civil engineering, construction sites, agricultural work, and various other uses.

[0002]

2. Description of the Related Art A conventional basement is manufactured by attaching the bottom of a basement made of rubber or synthetic resin to an upper obtained by sewing a fabric, by attaching or sewing. For the former attachment type, the upper is hung on an aluminum foot mold, an adhesive is applied to the periphery and the bottom of the upper, and the unvulcanized underground base is treated with a solvent and the like, and then laminated and adhered And vulcanization molding. In the latter case, the upper part is hung on an aluminum foot mold, and the vulcanized bottom is glued with an adhesive or stacked in an unbonded state, and the periphery of the bottom is laminated. It is a method of sewing with a sewing machine.

[0003]

However, in the manufacturing method using the sticking method, although the bottom can be firmly attached, it is necessary to adhere the unvulcanized state. There was a grudge that the method of curve forming could not be adopted. Further, in the manufacturing method by the sewing method, it is possible to previously form a curved shape by vulcanization molding in an arch shape so that the arch portion of the bottom conforms to the shape of the foot. There is a surface on which the adhesion with the upper is harder to be performed as compared with the above, and for this reason, although the sewing machine is sewn, the end of the toe portion and the like tend to be easily peeled off.

[0004] In order to solve the above-mentioned problems, the inventor of the present invention divided the bottom of each basement into front and rear parts, and vulcanized and formed the bottom of the soil so as to curve upward, and the unvulcanized state. It has been found that it is possible to provide an excellent underground base by vulcanizing and molding by bonding this to the upper bottom and the upper bottom, and has already proposed it. (See Japanese Patent No. 2509132)

It has been confirmed that the use of the front bottom portion and the rear bottom portion by the above-mentioned proposed method can provide an underground stair having the characteristics of an underground stave. As a result of further study for further enhancement, the present invention has been achieved.

[0006]

That is, the gist of the present invention is to use a bottom which is divided back and forth in the vicinity of a soil foot in each underground where the bottom is attached to the upper, The rear bottom portion, which is curved upward and has a rearward shape, is vulcanized and formed, and the rear bottom portion is bonded to the upper bottom portion through a patch cloth including the soil foot portion, and Each underground is characterized in that the unvulcanized front bottom with the shape of the part is glued to the upper bottom and this bottom is vulcanized.

The present invention also relates to a method of manufacturing a basement with a bottom attached to an upper, wherein a bottom divided front and rear is used in the vicinity of a soil foot, and the soil foot is first placed upward. The rear bottom, which is pre-cured and formed so as to have a curved and rearward shape, is adhered to the upper bottom through a patch cloth having a shape including a soil foot, and then the rear portion having the shape of the front portion is provided. The invention also provides a method of manufacturing a basement, characterized in that a vulcanized front bottom is adhered to an upper bottom and vulcanization molding is performed thereon.

Further, the present invention comprises a bottom which is divided into front and rear portions in the vicinity of the soil foot, wherein the soil foot is formed by vulcanizing with a shape which is curved upward and has a shape behind it. The back bottom and the unvulcanized front bottom having the shape of the front part are adhered to each other at the contact edge thereof, and a patch cloth including a soil foot is adhered to the inner surface. The feature is the bottom of each underground.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a bottom view showing an embodiment of the present invention, and FIG. 2 is a partial sectional view taken along the line II-II. In the figure, 1 is an upper sewn with cloth,
It is hung on the midsole, and the bottom is attached to the bottom to form a basement.

In the present invention, the bottom of each underground constructed as described above is divided into a rear bottom portion 3 and a front bottom portion 4 as shown in the figure. The rear bottom 3 of these bottoms is formed by vulcanizing the soil foot part 3A upward and having the shape of the bottom behind the vulcanization molding, and has a shape including the soil foot part. 5 is adhered to the upper bottom. The patch cloth 5 is made of a thick cotton cloth or the like and has a shape such as a rectangular shape including at least a soil pad portion, and an adhesive is applied to and bonded to both surfaces thereof. In the drawing, 3B is a contact edge provided with a step with the front bottom 4 and 3C is a reinforcing piece erected on the rear end of the rear bottom 3, and the upper end thereof is stitched to the upper 1 contact portion if necessary.
Have been.

On the other hand, the front bottom portion 4 has a shape of a bottom portion in front of the rear bottom portion 3 and has a contact edge provided with a step on the side to be bonded to the rear bottom portion 3 so as to be able to overlap with the contact edge 3B. 4B is formed in an unvulcanized state. And this front bottom part 4 is adhered to the upper bottom part,
The joint lines of the contact edges 3B and 4B of both are adhered so as to become II in the figure, and their bottoms are vulcanized. In the figure, reference numeral 4A denotes a reinforcing piece provided from the toe to the side of the front bottom 4, which is similarly provided in an unvulcanized state, and can be adhered along the contact portion of the upper 1 during vulcanization molding. it can.

[0012] Since the underground base of the present invention has the above-described configuration, the soil base at the bottom is the soil base 3 at the rear bottom 3.
Due to the presence of the curved molded portion A, the curved portion can be bent upward to fit the foot when worn, and has a performance of firmly attaching a toe portion, which is particularly likely to peel off. In particular, in the present invention, since the patch cloth 5 having the shape including the soil foot is interposed between the bottom and the midsole 2, the shape stability of the soil foot is further improved, and the performance of the soil foot over a long period of time is improved. There is a feature that can be maintained.

In the above embodiment, the rear bottom portion 3 and the front bottom portion 4 are adhered to each other at the contact edges 3B, 4B. However, the structure may be as shown in FIG. That is, using the rear bottom 3 provided with the soil base 3A which can overlap each other and the front bottom 4 also provided with the soil base 4C, the soil bases 3A and 4C are overlapped and adhered. To use. As shown in the example of the drawing, if the thickness of each of the soil foot portions 3A and 4C is gradually reduced toward the tip, there is an advantage that the adhesion at this portion is easy and the uncomfortable feeling after the adhesion is eliminated. It is also possible to gradually reduce the thickness of only one of them. In the case of bonding by the method shown in FIG. 3, the line of the seam formed by bonding the two soil foot parts 3A and 4C can be made straight like the imaginary line III in FIG.

As is apparent from the above description, the manufacturing method of the present invention can be performed according to a conventional manufacturing method except that the bottom is divided and bonded. Rear bottom 3
Is vulcanized and formed by pressing so that the soil foot 3A is curved upward, reinforcing pieces 3B are provided as necessary, and an appropriate tread pattern is formed. Then, the rear bottom portion 3 is adhered to a predetermined position on the bottom portion of the upper 1 via the patch cloth 5, and the reinforcing piece 3C is stitched 3D as necessary or in a later step.

The other front bottom portion 4 has the shape of the front portion, and is formed in an unvulcanized state so as to form a reinforcing piece 4A provided as required and an appropriate tread pattern. It can be manufactured by bonding to a predetermined position on the bottom and vulcanizing the bottom in this state. In addition,
When the reinforcing piece 4A is provided on the front bottom portion 4, this portion can be raised and vulcanized and formed in a state of being adhered to the upper contact portion.

The bottom of each basement of the present invention is also apparent from the above description, but the rear bottom 3 obtained by vulcanization molding in the same manner as described above and the front bottom 4 formed in an unvulcanized state are respectively provided. Is obtained by bonding the contact edges 3B and 4B of the above to form a single bottom. In the obtained single bottom state, the reinforcing piece 3C of the rear bottom part 3 is in a rising state, and the reinforcing piece 4A of the front bottom part 4 is in a planar state. Then, the single-piece bottom is bonded to the bottom of the upper 1 and then vulcanized and used. Further, in the case of the embodiment shown in FIG.
A and 4C may be bonded and used.

Although not shown in the drawing, the back bottom 3 and the front bottom 4 are bonded to each other in order to make the seam more firmly bonded. Can also be applied.

In the case of the embodiment shown in FIG. 3 among the above embodiments, the soil foot 3A of the rear bottom 3 is located inside and the front bottom 4
Although the soil foot part 4C is overlapped with the outside, the inside can be reversed. Such a reverse configuration is convenient when a mold surface such as a mark is provided in advance on the soil foot 3A of the rear bottom portion 3.

[0019]

As described above, the present invention is constructed as described above, so that the bottom formed by dividing the front and the rear is skillfully used to sufficiently secure the upward bending of the soil foot. At the same time, there is an advantage that the shape can be maintained for a long period of time, an excellent basement can be provided, and a base of the basement that can be provided for such basement can be provided.

[Brief description of the drawings]

FIG. 1 is a bottom view showing an embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view taken along line II-II of FIG.

FIG. 3 is a partial cross-sectional view showing the vicinity of an earthen foot portion according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper 2 Middle bottom 3 Back bottom 3A Soil base 3B Contact edge 4 Front bottom 4B Contact edge 4C Soil base 5 Patch cloth

Claims (3)

[Claims] In a basement having a bottom attached to an upper, a bottom divided into front and rear portions near a soil foot is used, wherein the soil foot is curved upward and backward. The vulcanized rear bottom having a shape is bonded to the upper bottom via a patch cloth having a shape including a soil foot, and the unvulcanized front bottom having the shape of the front portion is formed. The underground is characterized in that it is bonded to the upper bottom and the bottom is vulcanized. 2. A method of manufacturing a basement, wherein a bottom is attached to an upper, wherein a bottom divided forward and backward is used near a soil base, wherein the soil base is curved upward and A vulcanized rear portion which is pre-vulcanized and formed so as to have a rearward shape is adhered to the upper bottom portion via a patch cloth having a shape including an earthen foot portion, and then an unvulcanized state having a shape of a front portion. A method of manufacturing a basement, wherein a front bottom portion is bonded to an upper bottom portion, and vulcanization molding is performed thereon. 3. A vulcanized rear bottom portion having a bottom divided into front and rear portions in the vicinity of an earthen foot portion, wherein the soil foot portion is curved upward and has a shape behind it. And an unvulcanized front bottom having the shape of the front part is adhered to each other at a contact edge thereof, and a patch cloth including a soil foot is adhered to the inner surface thereof. The bottom of every basement.