JP2547985Y2 - Rubber block - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a rubber block laid on a road surface, and more specifically, a rubber which can maintain a constant color without a mottled pattern even when the surface is worn out. It is about blocks.

[0002]

2. Description of the Related Art In general, rubber blocks laid on a road surface of a golf course or the like are mainly made of discarded waste tires from the viewpoint of tire recycling, and various types of rubber blocks are used so as to be suitable for the aesthetics of each place. It is colored. By the way, a rubber block conventionally used is obtained by coloring a rubber chip obtained by pulverizing rubber such as a waste tire with a pigment, and integrally molding it into a sheet or a block with a binder such as urethane.

[0003] Although very expensive, a rubber material (hereinafter referred to as "colored rubber") which is preliminarily compounded with a coloring agent such as a pigment is used without using a rubber chip material obtained by pulverizing a waste tire or the like. Some are integrally formed in a sheet shape or a block shape. In addition, although it is somewhat expensive, there is also a two-layer structure in which a rubber chip material such as a waste tire is used for a base layer and a sheet-like colored rubber is laminated on the surface thereof to form a block shape.

[0004]

[Problems to be Solved by the Invention] However, in the above-mentioned conventional rubber block, in the case of a rubber block using only a rubber chip material such as a waste tire, in a shoe having a spike such as a golf shoe during walking, a spike is generated. In addition, the colored rubber chip material is unraveled, but the colored rubber chip material below it exposes its surface, so the surface of the rubber block is not so much as to show a mottled pattern, but in leather shoes and athletic shoes, etc. The surface of the rubber block that comes into contact with the shoe sole is worn away, and the colored pigment in that part is scraped off over time, gradually becoming black, the color of the rubber chip material of the material, and the surface of the rubber block exhibits a clear mottled pattern As a result, there was a problem that the image at the beginning was changed and the appearance was spoiled.

[0005] In the case of a rubber block using only colored rubber, various colors with excellent appearance can be obtained. However, the colored rubber is a new rubber material, and the cost of the colored rubber is very high. In terms of price, it is still difficult to use it as a general-purpose product. In the case of a rubber block having a two-layer structure, if the base layer and the rubber laminated on the surface thereof have different expansion coefficients (since rubbers having various expansion coefficients are used in tires used for the base layer). It is very difficult to match the expansion rate with the color rubber laminated on its surface), especially in places exposed to direct sunlight, such as outdoors, and in summer and winter, the expansion and contraction of rubber relative to the environmental temperature. Due to the considerable difference in the amount, the rubber block may be warped, which has been a problem especially with a thin rubber block.

The present invention has been devised in view of such a conventional problem, and effectively recycles tires and, despite the surface being worn out over time, has an aesthetic appearance without a mottled pattern. It is an object of the present invention to provide a rubber block which is inexpensive and in which warpage due to a temperature difference is prevented.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a block-shaped base layer and a predetermined surface.
Rubber block consisting of convex parts integrally provided at intervals of
The base layer is made of a rubber chip material only on its surface.
Is colored and combined, while the protrusions are colored
The gist of the present invention is that it is composed of a rubber material formed by blending with the above. In addition, the block-shaped base layer and its surface
And a convex part integrally provided at a predetermined interval
A lock, wherein the base layer is colored rubber tip material.
The protrusions are not attached while
Colored rubber chip material is bonded by an uncolored binder.
It is an Abstract that form.

[0008]

[Effect of invention] This invention is constructed as described above, the rubber on the surface of the base layer of the rubber block, integrally provided with protrusions at predetermined intervals, and molded by blending a coloring agent to the protrusion
By placing a material or uncolored rubber chip material,
Even when the part that comes in contact with the sole of a shoe such as leather shoes or athletic shoes wears out when walking, the surface of the rubber block can be maintained in a constant color without a mottled pattern, and the concave part is colored tires etc. Even if the rubber chip material is non-contact, the pigment on the surface is not scraped off, so that the change of the image of the rubber block over time can be prevented.

Further, since the convex portions are formed on the surface of the rubber block at predetermined intervals, even if a difference in the amount of expansion and contraction due to a temperature change occurs between the base layer and the material of the base layer, the base layer can expand and contract the convex portions. The rubber block can be sufficiently absorbed to effectively prevent the rubber block from being warped.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS This embodiment will be described below with reference to the accompanying drawings. FIG. 1 is a partial cross-sectional view showing an embodiment of a rubber block according to the present invention. Reference numeral 1 denotes a rubber block, and a predetermined interval is provided between a block-shaped base layer 2 and the surface thereof.
And the convex portion 3 provided integrally .

The base layer 2 is formed by coloring only the surface of a rubber chip material 4 obtained by pulverizing discarded waste tires or the like with a pigment or the like as in the past, for example, as a part of tire recycling, and then urethane-rubbing the urethane material. Using a binder 5 such as
It is combined and molded into a block shape. The convex part 3
A rubber material molded by blending a colorant such as a pigment Tona
That color rubber Contact Ri is composed of, are those of the state of the compound.

The method of manufacturing the rubber block 1 uses a block-shaped mold having a concave portion without unevenness on the bottom surface, and firstly pours an uncured color rubber into the concave portion, and then adds an uncured binder to the concave portion. The rubber block 4 can be obtained by putting the rubber chip material 4 and finally hardening it by pressurizing and heating. FIG. 2 is a partial cross-sectional view illustrating another embodiment of the rubber block according to the present invention.
Is a rubber block, which is composed of a block-shaped base layer 12 and projections 13 integrally provided on the surface thereof at predetermined intervals .

[0013] The base layer 12, like the base layer 2 of the above-described embodiments, only the surface of the rubber chips material 14 obtained by grinding discarded tires, etc. colored by pigment or the like, its
These are combined by using a binder 15 such as urethane to form a block. The protrusions 13 are also made of pigments, etc.
The rubber material formed by blending the above coloring agent is formed into a chip shape. The chip material 16 of the color rubber is bonded using a binder 15 such as urethane and formed into a convex shape.

The method for manufacturing the rubber block 11 also uses a block-shaped mold having a concave portion without unevenness on the bottom surface, and firstly places an uncured binder and a color rubber chip material 16 in the concave portion, and then uncured. Of rubber chip material 14 and finally pressurizing and heating to harden, rubber block 1
1 can be obtained. The projections 3 and 13 have discontinuous independent shapes, and can have various shapes such as a circle, a square, and a triangle when viewed from above. In addition, the convex portions 3 and 13 are provided without unevenness on the surfaces of the rubber blocks 1 and 11, and all the convex portions 3 and 13 may have a single shape such as a circular shape, or may have a design combining the shapes. .

The distance between the convex portions 3 and 13 provided without full bias is such that the rubber soles 1 and 1
A few mm at a distance such that it only contacts the convex portions 3 and 13 of 1
And several cm from the base layer 2 and 12 so that the sole does not contact the surface of the base layers 2 and 12. The thickness of the projections 3 and 13 is set to minimize the amount of expensive colored rubber used in order to keep the price of the rubber blocks 1 and 11 as low as possible. And 11 should just be in contact with the surface, preferably about 2 mm, but not limited to this.

The size of the shape of the convex portions 3 and 13 is as follows:
As long as it is matched to each location rubber blocks 1 and 11 are used, the surfaces of the projections 3 and 1 3 to be stepped on by the shoe or the like, may be provided the design to small irregularities or the like.
In the above embodiment, colored rubber is used for the projections 3 and 13. However, as shown in FIG. 3, the base layer 22 of the rubber block 21 is made of a colored binder 25 obtained by coloring a rubber chip material 24 such as a waste tire with a pigment or the like. The protrusion 23 is made of an uncolored rubber chip material 24 composed of waste tires or the like.
The base layer 22 may be colored by solidifying and molding with a non-colored binder 26, and the convex portion 23 may have a black design.

In the above embodiment, the rubber block 1,
Although the case where 11 and 21 are molded using a rubber material has been described, the rubber used in the present invention is an elastic material such as rubber and urethane rubber.

[0018]

According to the present invention, as described above, the rubber material is formed by integrally forming convex portions on the surface of the base layer of the rubber block at predetermined intervals, and compounding a colorant with the convex portions. <br/> By arranging uncolored rubber chip material, even if the parts that come in contact with the shoe soles such as leather shoes and athletic shoes wear when walking,
The surface of the rubber block can always maintain a constant color without being mottled, and the recesses are non-contact even with colored rubber chip materials such as waste tires, so the surface pigment is not scraped off Therefore, there is an effect that the change of the image of the rubber block with the passage of time is prevented, the aesthetic appearance of the rubber block is maintained, and the harmony with the surroundings can be always achieved. In addition, the convex part is a predetermined distance on the surface of the rubber block.
Even if there is a difference in the amount of expansion and contraction due to temperature changes between the base layer material and the base layer material, it is effective for the base layer to fully absorb the expansion and contraction of the protrusions and to cause the rubber block to warp. As a result, it is also possible to combine with a material having a different amount of expansion and contraction due to temperature, and it is possible to improve the design of the rubber block surface.

Furthermore, a colorant is blended to form a color
When using expensive rubber materials that are
Since it is used only for the provided protrusions , the product cost can be kept low, it is possible to supply a rubber block excellent in aesthetic appearance even as a general-purpose product, and it is possible to supply the base layer occupying the main volume Since a colored rubber chip material made of a waste tire or the like is used, there is an effect that a rubber product such as a tire can be effectively recycled.

[Brief description of the drawings]

FIG. 1 is a partial sectional view showing a rubber block according to the present invention.

FIG. 2 is a partial sectional view of a rubber block showing another embodiment of the present invention.

FIG. 3 is a partial sectional view of a rubber block showing another embodiment of the present invention.

[Explanation of symbols]

1, 11, 21 rubber block 2, 12, 22
Base layer 3, 13, 23 protrusion 4,14,24
Rubber chip material 5, 15, 26 Binder 25 Coloring
Under

Claims (2)

(57) [Scope of request for utility model registration] 1. A block-shaped base layer and a predetermined surface thereof
Rubber block consisting of convex parts integrally provided at intervals of
The base layer is made of a rubber chip material only on its surface.
Is colored and combined, while the protrusions are colored
A rubber block characterized by being composed of a rubber material formed by blending with a rubber. 2. A block-shaped base layer and a predetermined surface thereof
Rubber block consisting of convex parts integrally provided at intervals of
The base layer is formed by coloring a rubber chip material with a binder.
While the projections are made of uncolored rubber.
Features and to Lula bar block that the Muchippu material constituted bound by non-colored binder.