JP3394232B2 - Forming method of construction surface lining block - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of molding a construction surface lining block from a hardened material.

[0002]

2. Description of the Related Art Conventionally, when a construction surface lining block is molded from a hardened material, the hardened material is generally poured into a metal or resin mold, and after hardening, the mold is released to obtain a predetermined shape. The method of forming the lining block is adopted.

As a concrete block molding method which does not use the above-mentioned mold, Japanese Patent Laid-Open No. 6-256058 discloses a method of pouring concrete into a bag-shaped rubber mold in which several rubber parts are joined together. Has been done.

[0004]

SUMMARY OF THE INVENTION In the above conventional method,
As a whole, it takes time to remove the mold (female mold) from the mold, and the size of the mold cavity of the mold used is the size of the molded product. Therefore, it is difficult to manufacture a molded product with added weight.

In the latter method using the bag type,
Since it is a bag type that utilizes expansion and contraction of rubber, it lacks homogeneity of the finished state of the block, and has a problem that it is difficult to mold a block having a constant outer shape.

The present invention uses a bag and a molding die (female mold) in combination, so that the construction surface lining block can be easily removed from the female die and the weight can be set. To provide a molding method.

[0007]

According to the present invention, a flexible bag is arranged in a female molding cavity, a hardening material is filled in the bag, and the bag is pressed by the internal pressure of the hardening material. While inflating, the bag body is adapted to the inner surface of the molding cavity, and after the hardening material is cured, the bag body is removed from the female mold, and the bag body is removed to form a construction surface lining block. Form.

The surface of the construction surface lining block is colored by allowing the bag to be filled with the hardening material to hold a coloring material.

The opening state of the bag mouth for filling the hardening material into the bag body is maintained by a mouth frame such as a ring to facilitate the filling of the hardening material.

Preferably, a rubber bag having flexibility and elasticity is used as the bag, and the bag is inflated by the curable material filled in the bag due to the elasticity, and the bag is conformed to the inner surface of the molding cavity. In addition to improving the property, the same bag facilitates demolding from the female mold and removal of the bag.

Further, the exposed portion is molded with the curable material filled in the bag inside the female molding cavity, and the curable material is filled in the bag inflated above the opening upper surface of the molding cavity. By molding the embedding portion and adjusting the size of the embedding portion, the weight can be freely set while maintaining the outer shape of the block.

Further, the upper half block part is molded with the above-mentioned hardening material filled in the bag inside the molding cavity of the female mold, and the curing filled in the bag expanded above the opening upper surface of the molding cavity. It is possible to mold the lower half block part with a material to mold a construction surface lining block imitating the shape of natural rock.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the method for forming a construction surface lining block according to the present invention will be described with reference to FIGS. 1 to 7.

The construction surface lining block 1 is made of various hardening materials such as concrete, plaster, resin, etc. These construction surface lining blocks 1 are used for lining the ground or road surface, revetment walls of rivers, river floors, Blocks used for lining the embankment, constructing retaining walls, and lining construction surfaces such as laying in parks and gardens. Further, the concrete means a fluid cement-kneaded product, and also includes one composed of cement, sand and gravel, mortar not containing gravel, foam concrete and the like.

As shown in FIG. 1A, the female mold 2 is provided with a molding cavity portion 3 which is open on the surface, and a flexible bag body 4 for filling a hardening material 6 is arranged in the molding cavity portion 3. Although the shape of the molding cavity portion 3 is simply shown in the drawing, it is actually a recess formed according to the desired shape of the construction surface lining block 1.

Next, as shown in FIG. 1B, a paste-like or powder-like hardening material 6 is filled from the bag mouth 7 into the bag body 4, and the hardening material 6 is softened by the flexibility of the bag body 4. While inflating the bag body 4 by the internal pressure of 1, the bag body 4 is adapted to the inner surface 5 of the molding cavity 3.

As the bag body 4, as shown in FIGS. 2A and 2B, a bottomed bag body having a bag mouth 7 for filling the hardening material 6 is used.

Alternatively, as shown in FIG. 2C, the bag body 4 is developed into a flat sheet shape, and is formed into a bag shape by providing a means for squeezing the periphery of the sheet. For example, a string having the bag mouth 7 is formed by squeezing the string 8 inserted along the periphery of the sheet.

Further, as the bag body 4, a woven fabric formed by braiding natural fibers or synthetic fibers having good conformability to the inner surface of the molding cavity portion 3, that is, having flexibility, or aluminum, stainless steel or the like. A bag body 4 made of a metal film or a resin film such as vinyl is used.

The bag 4 is inflated by the hardened material 6 to be filled, and can be flatly folded in a steady state without the hardened material. Due to the flexibility of the bag body 4, it is possible to form the construction surface lining block 1 in which the shape of the molding cavity portion 3 of the female die 1 is properly reproduced.

In order to further improve the conformability to the molding cavity 3, a bag body 4 having both flexibility and elasticity is used. For example, a bag 4 formed of a woven fabric of synthetic fibers such as nylon, polyester, acrylic fibers or a woven fabric of natural fibers, or a rubber represented by a rubber balloon having both flexibility and stretchability as shown in FIG. 2B. The bag body 4 made of is used.

The bag 4 having both flexibility and elasticity.
Because the base material of the bag body 4 is expanded by the internal pressure of the hardened material 6 filled and the bag body 4 swells so as to come into close contact with the inner surface 5 of the molding cavity portion 3, the inner surface 5 of the molding cavity portion 3 is expanded. It is possible to mold the construction surface lining block 1 that properly reproduces the fine shape of the above.

Further, when the bag body 4 formed of the woven cloth of the above natural fibers or chemical fibers is used, the texture pattern of each woven cloth is transferred to the surface of the construction surface lining block 1.

The bag 4 is brought into close contact with the entire inner surface 5 of the molding cavity 3 by the internal pressure of the curing material 6 filled in the bag 4, and the curing material 6 is filled in the molding cavity 3. Go on.

As shown in FIG. 1C, the curing material 6 is filled in the bag body 4 until it protrudes upward beyond the upper surface of the opening of the molding cavity 3 of the female mold 2, and the curing material 6 is projected. The curing material 6 is cured while being held by the bag body 4.

Since the hardening material 6 is filled over the upper surface of the opening of the molding cavity 3, the bag body 4 has an extra length end where the upper end of the bag mouth 7 exceeds the upper surface of the opening of the molding cavity 3. The hardened material 6 is filled into the extra length end to form the embedding portion 10. When a bag body 4 made of rubber or the like having both flexibility and stretchability is used, the bag body 4 is expanded above the opening surface of the molding cavity 3 and filled with the hardening material 6, and the embedding section 10 is provided. To mold.

A bag obtained by molding the exposed portion 9 with the hardened material 6 filled in the bag body 4 in the molding cavity portion 3 of the female mold 2 and inflating it above the opening upper surface of the molding cavity portion 3. The embedding part 10 is molded with the hardening material 6 filled in the body 4.

Next, as shown in FIG. 1D, the hardened curing material 6 is released from the female mold 2 together with the bag body 4, and as shown in FIG. 1E, the bag body 4 is removed by cutting with a tool. The construction surface lining block 1 having a predetermined shape is formed. By pulling up the bag body 4, the construction surface lining block 1 can be easily released from the female die 2.

When the bag body 4 made of the elastic woven cloth or the bag body 4 made of the same rubber is used, it is contracted at the time of ripping while ensuring good conformability to the female mold 2. The self-peeling from the face lining block 1 occurs, and the bag body 4 can be removed more easily.

The construction surface lining block 1 molded by the above method is regulated by the molding cavity portion 3 and the exposed portion 9 molded according to the shape, and protrudes in a mountain shape above the female die 2 and is regulated by the bag body. The embedded portion 10 formed while being molded is coupled. The construction surface lining block 1 drives soil or sand 16 or the like around the embedding portion 10 to embed the embedding portion 10 and cover the construction surface 17.

The size of the embedding part 10 is independent of the size of the molding cavity part 3, and the size of the bag body 4 and the hardening material 6 to be used.
Since it can be freely set depending on the filling amount of the
By adjusting the size of 0, the weight of the entire block 1 can be easily set while the outer shape of the exposed portion 9 of the construction surface lining block 1 remains the same.

That is, it is possible to mold the construction surface lining block 1 having various weights suitable for use conditions without replacing the female mold 2. In addition, the size of the embedding portion 10 required for safe installation can be sufficiently secured.

As shown in FIG. 3A, the bag 4 used for filling the hardening material 6 is made to retain the coloring material 11, and the surface of the construction surface lining block 1 is colored.

For example, a water-permeable bag body 4, for example, a woven cloth is used as the bag body 4, and the bag body 4 is provided with a coloring material 11 such as a pigment. As a specific method, the coloring material 11 such as a pigment is impregnated into or applied to the woven fabric forming the bag body 4, or the coloring material 11 is put into the woven fabric. To hold.

The coloring material 11 may be any one as long as it can be used for coloring the construction surface lining block 1, but an inorganic pigment to which a dispersant, a curing accelerator or the like is added is used as a suitable material.

As shown in FIG. 3B, the filled hardener 6 is filled.
Moisture contained in the water is exuded into the molding cavity 3 through the texture of the woven fabric, forming a moisture layer 12 between the inner surface 5 of the molding cavity 3 and the surface of the hardening material 6. The coloring material 11 held in the bag body 4 is eluted into the water layer 12, and the surface of the construction surface lining block 1 is colored.

As shown in FIGS. 4A and 4B, the mouth frame 1 such as a ring is provided in the bag mouth 7 for filling the hardening material 6 into the bag body 4.
Attach 3. For example, as shown in FIG. 4A, the inner fitting ring 13 a is attached along the inner periphery of the bag mouth 7, and the outer fitting ring 13 b is attached along the outer periphery of the bag mouth 7.

The both edges 13a, 13b sandwich the bag mouth opening edge of the bag body 4 to impart rigidity to the bag mouth 7 so that the opened state is stably maintained, and the bag mouth 7 is cured. Material 6
Facilitates filling. Alternatively, as shown in FIG. 4B, when the elastic bag body 4 is used, the inner fitting ring 13
It is also possible to attach only a and keep the open state of the bag mouth 7.

By implementing the above-described present invention, it is possible to form the construction surface lining block 1 of pseudo rock or cobblestone imitating the shape of natural rock. As shown in FIG. 6, the curing material 6 is filled in the bag body 4 until it protrudes upward beyond the upper surface of the opening of the molding cavity 3 of the female die 2 and the curing material 6 is in the protruding state. While being held by 4, the hardening material 6 is hardened.

The construction surface lining block 1 has the maximum width W
Upper half block part 18 and lower half block part 1 separated by
9, the upper half block portion 18 is molded with the hardening material 6 filled in the bag body 4 in the molding cavity portion 3 of the female mold 2, and the upper half block portion 18 is formed above the opening upper surface of the molding cavity portion 3. The lower half block portion 1 is filled with the hardening material 6 filled in the bag body 4 which is inflated into
Mold 9.

Conventionally, when a block imitating natural rock is molded using only the female mold 2, as shown in FIG. 7A, the flat bottom surface which becomes the maximum width W at the opening surface of the molding cavity 3 is formed. That is, only the upper half block portion 18 is formed, and it is difficult to form the lower half block portion 19.

When the construction surface lining block 1 having the upper half block portion 18 and the lower half block portion 19 is to be molded, a split mold 21 having an injection port 20 is used as shown in FIG. 7B. It must be said that the split mold 21 has a problem that the boundary 22 of the split mold 21 appears in a streak pattern on the surface of the molded block 1 and that the split mold 21 itself is expensive.

Thus, the upper half block portion 19 is molded in the bag body 4 in the molding cavity portion 3 by simply using the open body (female mold 2) and the bag body 4 without using the split mold 21. Then, the lower half block portion 19 can be molded in the bag body 4 inflated above the upper surface of the opening of the molding cavity portion 3.

According to this, the three-dimensional shape imitating natural rock,
Enables molding of the construction surface lining block 1 intended for reproducibility of natural rock. The lower half block portion 19 is the embedded portion 1
It can be zero.

When the lower half block portion 19 is formed, the bag body 4 has an extra length end where the upper end of the bag mouth 7 exceeds the upper surface of the opening of the molding cavity 3. The surplus length end is filled with the hardening material 6, and the lower half block portion 19 is molded. When a bag body 4 made of rubber or the like having both flexibility and elasticity is used, the bag body 4 is stretched above the opening surface of the molding cavity 3 and the curing material 6 is stretched.
And the lower half block portion 19 is molded.

In addition to the above structure, as shown in FIG. 3A, before the hardening material 6 is completely hardened, the retractor 14 is inserted from the bag mouth 7, and a part of the retractor 14 is partially cured. It is embedded inside, and the retractor 14 is integrally attached to the embedded portion 10 of the construction surface lining block 1. When the embedded portion 10 for weight addition is not formed, the embedded portion 10 for weight addition is inserted into the back surface of the exposed portion 9 or the lower half block portion 19 and attached.

As shown in FIG. 5A, the pulling tool 14 attached to the embedding portion 10 is put around the warp threads 15a or the weft threads 15b or both of the net 15 formed of the lattice-assembled metal wire rod, and the applicant It is possible to form a block unit shown in Japanese Examined Patent Publication No. 7-11112 in which a plurality of construction surface lining blocks 1 are integrally attached.

Alternatively, as shown in FIG. 5B, as a modified example included in FIG. 5A, one end of the pulling tool 14 is embedded in the adjacent construction surface lining block 1 and the other end is embedded in the other construction surface covering block 1. The block unit may be formed by embedding it in the work block 1. The above block unit is Net 15
Is laid on the construction surface 17, and the above-mentioned construction surface lining block 1
Place dirt or sand 16 in between.

As the pulling tool 14, a hook metal fitting or a U-shaped metal fitting having one end cut out is used, or a metal rod is made to project, and the metal rod is bent and entwined with the net 15 to pull it through. Further, instead of the net 15, the construction surface lining block 1 may be attached to one rebar through the pulling tool 14.

Further, a net 15 is installed on the uncured construction surface lining block 1, and the pulling tool 14 is looped around the warp threads 15a and the weft threads 15b of the net 15 while the pulling tool 1 is pulled.
After the end of 4 is inserted into the uncured curing material 6 and the curing material 6 is cured, the plurality of construction surface lining blocks 1 integrated with the net 15 are removed from the female mold 2 together with the bag body 4. It is also possible to mold and remove the bag body 4 to form the block unit.

[0051]

According to the present invention, the construction surface lining block can be removed from each bag body by using the bag body together with the female mold.
Demolding work from the female mold becomes easy.

Further, while maintaining the outer shape of the exposed portion of the construction surface lining block, the embedded portion protruding above the female mold is formed to facilitate the weight setting of the block. Further, by freely adjusting the height of the embedded portion, it is possible to sufficiently secure the size of the embedded portion necessary for stable installation. Further, the upper half block portion and the lower half block portion are integrally formed, and the construction surface lining block imitating the shape of natural rock can be easily and reproducibly formed.

Further, the coloring material held in the bag can color the construction surface lining block simultaneously with molding.

If a non-permeable bag made of rubber or the like is used,
The demolding from the female mold and the removal of the bag can be performed more easily.

[Brief description of drawings]

1A to 1E are cross-sectional views showing a method of forming a construction surface lining block in the order of steps.

FIG. 2 is a perspective view showing a bag body made of a woven cloth, B a rubber bag body, and C a bag body that can be developed into a sheet shape.

FIG. 3A is a sectional view showing a state in which a coloring material is contained in the bag body, and B is an enlarged sectional view of the main part.

FIG. 4A is an enlarged cross-sectional view of an essential part showing a state where an inner fitting ring and an outer fitting ring are attached to the bag mouth of the bag body, and B is a partial cutaway showing a state where only the inner fitting ring is attached to the bag mouth. FIG.

[FIG. 5] A shows a state in which the construction surface lining block is attached to the net through a pulling tool embedded integrally, and B shows two construction surface lining blocks connected to the net through one pulling tool. Sectional drawing which shows the mounted state.

FIG. 6 is a cross-sectional view showing a state in which the upper half block portion and the lower half block portion of the construction surface lining block are integrally molded.

FIG. 7A is a cross-sectional view showing a molding method for a construction surface lining block having a flat bottom surface using only a conventional female mold, and B is a molding method for three-dimensionally molding the block using a split mold. .

[Explanation of symbols]

1 Construction surface lining block 2 female 3 Mold cavity 4 bags 5 Inner surface 6 Curing material 7 bags 8 strings 9 exposed section 10 Embedded part 11 Coloring material 12 Moisture layer 13 mouth frame 13a Internal fitting ring 13b External fitting ring 14 Retractor 15 net 15a warp 15b weft 16 soil or sand 17 Construction surface 18 Upper half block 19 Lower half block 20 inlet 21 split type 22 border w Maximum width section

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Claims (5)

(57) [Claims] 1. A flexible bag body is arranged in a female molding cavity, a hardening material is filled into the bag body, and the bag body is inflated by the internal pressure of the hardening material to form the bag body. Of the construction surface lining block, which is adapted to the inner surface of the cavity and after the curing material is hardened, is removed from the female mold together with the bag body and the bag body is removed to form a construction surface lining block. In the molding method, the exposed portion is molded with the curable material filled in the bag inside the female molding cavity, and is filled in the bag inflated above the opening upper surface of the molding cavity. A method for molding a construction surface lining block, characterized in that the embedded portion is molded with a hardening material. 2. A flexible bag body is arranged in a female molding cavity, a hardening material is filled into the bag body, and the bag body is inflated by the internal pressure of the hardening material while molding the bag body. Of the construction surface lining block, which is adapted to the inner surface of the cavity and after the curing material is hardened, is removed from the female mold together with the bag body and the bag body is removed to form a construction surface lining block. In the molding method, the upper half block part is molded with the curing material filled in the bag inside the female molding cavity, and the curing is filled in the bag expanded above the opening upper surface of the molding cavity. A method for forming a construction surface lining block, characterized in that the lower half block portion is formed of a material. 3. The construction surface lining according to claim 1 or 2, wherein a colorant is held in the bag body used for filling the hardening material to color the surface of the construction surface lining block. Block molding method. 4. The method for molding a construction surface lining block according to claim 1, wherein an opening state of a bag mouth for filling the hardening material into the bag body is held by a mouth frame. 5. The method of molding a construction surface lining block according to claim 1, wherein a rubber bag having flexibility and elasticity is used as the bag.