JP3360243B2 - The basement, its manufacturing method and the base of the basement - Google Patents

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 basement for use in civil engineering, construction sites, agricultural work, and various other uses.

[0002]

2. Description of the Related Art Conventionally, a bottom of a basement made of rubber or synthetic resin is attached to an upper obtained by sewing a fabric by a sticking method or a sewing method.
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. Also, in the manufacturing method by the sewing method, it is possible to vulcanize and mold in advance in an arch shape so that the bottom of the soil fits the shape of the foot, but the vulcanized bottom is different from the above method. Therefore, there is a surface that is difficult to be firmly bonded to the upper. For this reason, although the sewing machine is sewn, the end of the toe and the like are likely 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. 2509121)

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, Sat Fu first part is curved upward soil Fu
The wall thickness that can overlap each other at the first point
The vulcanized rear bottom portion having the earthen foot piece reduced in size and having a shape behind it is adhered to the upper bottom portion through a patch cloth having a shape including the earthen foot portion. At the same time, make sure that
The part of the soil that has been reduced so that the
Underground front bottom of comprising moreover unvulcanized having the shape of the front portion is bonded to the upper bottom while being adhered with Ryodofu first piece, the bottom portion is characterized by comprising the vulcanized Every time.

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. Curved and soiled at each other
Soil with reduced thickness that can overlap
The rear bottom which is previously vulcanized so with the provided And this from the rear of the shape Fumazu piece, as well as adhere to the upper bottom through the patch cloth shapes including soil Fu first part, then the soil Fu first part Can overlap each other at
The unvulcanized front bottom with the shape of the front part and the soil bottom which is reduced so that the wall thickness is reduced to the tip,
The gist of the invention is also a method of manufacturing a basement, characterized in that the pieces are bonded together and bonded to the upper bottom, and then vulcanized.

Further, the present invention comprises a bottom part which is divided into front and rear portions in the vicinity of the soil foot , wherein the soil foot is curved upward and overlaps each other at the location of the soil foot.
Soil foot that has been reduced so that the thickness that can be fitted is at the tip
A vulcanized rear bottom with a piece and a shape behind it overlaps with the soil foot at the bottom.
The soil foot has a reduced thickness that can be filled at the tip.
The unvulcanized front bottom having a piece and having the shape of the front part is bonded to both soil footpieces, and a patch cloth including the soil foot is bonded to the inner surface thereof. The gist is also 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, FIG. 2 is a partial cross-sectional view taken along the line II-II of FIG .
Is an enlarged cross-sectional view of a soil foot . In the figure, reference numeral 1 denotes an upper sewn with a fabric, which is hung on the midsole of 2, and the bottom is attached to the bottom to form an underground wall.

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 such that the soil foot 3A is curved upward and overlaps with each other at the location of the soil foot.
Part 3B, which has a reduced wall thickness as the tip becomes thinner
And vulcanized with the shape of the bottom behind it, and is adhered to the upper bottom through a patch cloth 5 having a shape including the soil foot. 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 figure, reference numeral 3C denotes a reinforcing piece provided upright at the rear end of the rear bottom portion 3, and the upper end thereof is stitched 3D to the upper 1 contact portion as necessary.

On the other hand, the front bottom portion 4 has a bottom shape at a portion forward of the rear bottom portion 3 and can overlap with each other at the location of the soil foot on the side bonded to the rear bottom portion 3.
Thickness are formed in the unvulcanized state as obtain Bei soil Fu first piece 4B of reduced extent become tip. And together with the front bottom portion 4 is bonded to the upper bottom, Ryodofu first part
The pieces 3B and 4B are bonded together, and their bottoms are vulcanized. 4A is a soil cover at the front bottom 4 .
First, 4C is a reinforcing piece provided from the toe to the side, which is similarly provided in an unvulcanized state, and can be adhered along the contact portion of the upper 1 during vulcanization molding. .

Since the underground wall of the present invention has the above-described configuration, the two pieces 3B and 4B are adhered to each other.
First, a portion is formed, and the bottom of the soil base is bent upward by the presence of the curved formed portion of the bottom soil base 3A at the rear bottom, so that the foot can be fitted to the foot when worn. It has the ability to firmly attach a toe that is prone to peeling. 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.

[0013] In the earthen part 3A, 4A of the present invention ,
As shown, each of the soil fu first piece 3B, since the thickness of the 4B are declining extent become tip, facilitate adhesion at this portion, there is an advantage that also eliminates discomfort after adhesion.
In the case were bonded in the method of FIG. 3 both soil Fumazu pieces 3B,
The line of the seam due to the bonding of 4B can be linear as shown in III of FIG. The imaginary line I is the inner joint
The edges are shown.

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
Indicates that the soil foot 3B is curved upward and the soil foot
So that the thickness that can overlap each other at the tip is
It is equipped with a reduced piece 3B of soil, and
In so that comprises a shape, and a reinforcing piece 3C provided as necessary, to allow suitable tread pattern, molded and vulcanized by press. 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.

[0015] The other front bottom 4 is located at the base of the soil.
The thickness that can overlap each other is lower toward the tip
Provided with a shape of the front portion provided with a soil Fu first piece 4B was Hesi, molded unvulcanized state so that the reinforcing piece 4C and appropriate tread pattern provided as needed is formed, both Fu first
The pieces 3B and 4B can be manufactured by bonding the pieces 3B and 4B to a predetermined position on the bottom of the upper 1 and vulcanizing the bottom in this state. Note that the reinforcing piece 4 is provided on the front bottom 4.
When installing C , raise this part and
Vulcanization molding can be performed in a state of being adhered to the contact portion.

The bottom of the underground 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 rear bottom 4 formed in an unvulcanized state are both soiled. Fu
First, the pieces 3B and 4B are adhered, and the soil
This is obtained by adhering the backing cloth 5 having a shape including the edge portion to form a single bottom. In the obtained single bottom state, the reinforcing piece 3C of the rear bottom 3 is in a rising state, and the reinforcing piece 4C of the front bottom 4 is in a flat state.
It has become. Then, the single-piece bottom is
After bonding to the bottom of the upper 1
No.

[0017] Also, in the example shown in FIG. 3 in the above embodiment, the soil Fu first part 3A of the rear bottom 3 inside, but the soil Fu First Part 4 A of the rear bottom is overlaid on the outside, this It is also possible to reverse inside and outside. 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.

[0018]

Since the present invention has the above-described structure, it is possible to sufficiently secure the upward bending of the soil foot by skillfully using the bottom consisting of the front and rear divided bottoms. There is no discomfort after bonding the pieces together
In addition, by interposing a patch cloth, the shape stability can be improved, and this shape can be maintained for a long period of time, so that an excellent basement can be provided, and further, such basement can be provided. There is the advantage that the underground can provide a bottom every time.

[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 a soil foot of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Upper 2 Middle bottom 3 Rear bottom 3A Soil base 3B Soil base 4 Front bottom 4A Soil base 4B Soil base 5 Patch

Claims (3)

(57) [Claims] In a basement having a bottom attached to an upper, a base divided into front and rear portions near a soil foot is used, wherein the soil foot is curved upward and the soil is bent upward.
The wall thickness that can overlap each other at the place of the
A vulcanized rear bottom portion having an earthen foot piece that is gradually reduced toward the tip and having a shape behind it is adhered to the upper bottom portion through a patch cloth including the earthen foot portion. Overlap with each other at the soil
Soil foot part that gradually decreased as the thickness of the wall
The unvulcanized front bottom having a piece and having the shape of the front part is bonded to the upper and lower parts while being bonded to both soil wool pieces, and the bottom is vulcanized and formed. Every time you go underground. 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 Overlap each other at the base of the soil
The part of the soil that has been gradually reduced so that
The rear bottom portion, which has been vulcanized and formed in advance so as to have a rearward shape, is bonded to the upper bottom portion through a patch cloth having a shape including the soil foot , and then the soil foot is formed.
At the tip, the wall thickness that can overlap each other
Adhering the unvulcanized front bottom with the shape of the front part and the soil base and the soil base
Adhere to Rutotomoni upper bottom, the production method of each underground, characterized in that so as to vulcanized thereon. 3. A soil base comprising a front and rear divided bottom in the vicinity of a soil base, wherein the soil base is curved upward and can overlap with each other at the location of the soil base.
Only with a piece of soil that has a reduced wall thickness
The vulcanized rear part with the shape behind it and the meat that can overlap each other
The unvulcanized front bottom, which is provided with an earthen bottom piece whose thickness is reduced toward the tip and has the shape of the front part, is a soil soiled floor.
Not adhered by the piece, and the bottom of each underground, characterized in that it is bonded patch cloth shape including a Zadoff first part on the inner surface.