JP2003080603A - Composite molded article and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite molded article obtained by still more certainly and strongly bonding a resin molded article and a cement molded article and capable of simplifying execution work and shortening an execution period, and a method for manufacturing the same. SOLUTION: In the composite molded article 1 obtained by bonding the resin molded article 2 molded from a resin or a resin-containing resinous material and the cement molded article 3 molded from a cement-containing cementitious material, recessed parts 4, etc., are formed to one of the resin molded article 2 and the cement molded article 3 and projected parts 5, etc., fitted in the recessed parts 4, etc., are formed to the other one of them. The recessed parts 4, etc., and the projected parts 5, etc., are brought to a mutual contact state to form contact parts 6, etc., and 7, etc., for preventing the resin molded article 2 and the cement molded article 3 from being spaced apart from each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite molded product obtained by joining a resin molded product molded from a resin or a resin-based material containing a resin and a cement molded product molded from a cement-based material containing cement. And a method for manufacturing a composite molded article.

[0002]

[Background technology] Concrete is exposed on the floor surface of paved roads, balconies, roof balconies, roof gardens, etc. Paving stones such as various decorative tiles are laid on this concrete floor surface. By covering with artificial grass etc., the appearance beauty of the floor surface is created. As an example of this paving stone, for example, the technique described in JP-A-9-78510 can be cited. This paving stone is one in which a zeolite particle group is kneaded with cement on one surface of a concrete panel, and the mixture is hardened and fixed, and then the surface of the zeolite particles is made flat.

[0003]

By the way, on one surface of a concrete panel made of concrete, for example,
A paving stone may be formed by providing a resin molded product molded from a resin or a resin-based material containing a resin. In this case, a resin molded product is usually adhered to the upper surface of the concrete panel with an adhesive. However, since the resin molded product and the concrete panel are formed from different raw materials, the resin molded product and the concrete panel cannot be reliably bonded by simply bonding them with an adhesive. It has been desired to improve the strength between concrete panels. In addition, the upper surface of the concrete panel is a smooth surface, and the resin molded product is adhered to the smooth upper surface of the concrete panel. I couldn't bond them. Furthermore, when manufacturing such a paving stone, after manufacturing the resin molded product and the concrete panel respectively,
Since the bonding work was performed, the number of construction steps was large and the construction period could not be shortened.

The present invention has been made in view of the above circumstances, and more preferably includes a resin molded product molded from a resin or a resin-based material containing a resin, and a cement molded product molded from a cement-based material containing cement. It is an object of the present invention to provide a composite molded article and a method for manufacturing the composite molded article, which can further reliably and firmly bond them, and can simplify the construction work and shorten the construction period.

[0005]

In order to solve the above-mentioned problems, the invention of claim 1 is, for example, as shown in FIG. 1, a resin molded product 2 molded from a resin or a resin material containing a resin. A composite molded article 1 obtained by joining a cement molded article 3 molded from a cement-based material containing cement, wherein one of the resin molded article 2 and the cement molded article 3 has a recess 4 ,. Are formed on the other side, and on the other side, the recesses 4, ...
Are formed to be fitted to the concave portions 4 ,.
The contact portions 6, ..., 7, ... For preventing the resin molded product 2 and the cement molded product 3 from being separated from each other by contacting each other between the ... It is characterized by being.

According to the first aspect of the present invention, the concave portions 4, ... Formed on one of the resin molded product 2 and the cement molded product 3 and the convex portions 5, ... , The resin molded product 2 and the cement molded product 3 by contacting each other
Abutting portions 6, ..., For preventing the and from separating from each other
Since the concave portions 4, ... And the convex portions 5, ... Are simply formed, compared to the case where the concave portions 4, ... And the convex portions 5 ,. The convex portions 5, ... Fitted by the abutting portions 6, ... Formed in the concave portions 4 ,.
Can be prevented from being separated from each other, and the abutting portions 7, ... Formed on the convex portions 5, ... Can be prevented from separating the fitted concave portions 4 ,. Therefore, the resin molded product 2 and the cement molded product 3 can be bonded more reliably and firmly, and the composite molded product 1
The strength as a whole can be improved.

Examples of the cement material include concrete and mortar.

The invention of claim 2 is, for example, as shown in FIG. 1, in the composite molded article 1 of claim 1, the resin-based material contains cellulose-based fine powder particles, and the cellulose-based fine powder particles are It is characterized in that it is obtained from a wooden waste material containing impurities, and the resin is obtained from a resin waste material containing impurities.

According to the second aspect of the present invention, since the resin-based material contains cellulose-based fine powder particles, wood powder appears on the surface of the obtained resin-molded product 2 to give a wood-like composite molded product. It can be set to 1, and the texture can be improved. In addition, since the cellulose-based fine particles are obtained from a wood waste material and the resin is obtained from a resin waste material, the use of the wood waste material or the resin waste material is excellent from the viewpoint of effective use of resources and environmental protection.

Examples of the wood waste materials include wood waste materials discharged when a building such as a house is dismantled, wood waste materials discharged when a furniture is dismantled, wood scraps discharged during building construction, Sawdust and the like can be cited. Cellulose fine particles can be obtained by finely pulverizing such a wood waste material with a well-known pulverizing device. Examples of the resin waste material include trays recovered after used for packaging foods, packaging members such as food containers, and the like. From such resin waste material, vinyl chloride resin, expanded vinyl chloride resin, Resins such as polyethylene resin, phenol resin, urethane resin, polyurethane resin, ABS resin and polystyrene resin can be obtained.

The invention of claim 3 is, for example, as shown in FIG. 1, in the composite molded article 1 according to claim 1 or 2,
The cement-based material is an eco-cement containing incinerated slag, volcanic ash slag, or the like.

According to the third aspect of the present invention, since the cement-based material is ecocement containing incinerated slag, volcanic ash slag, etc., conventionally, the incinerated slag and volcanic ash slag that have been mainly discarded at the final disposal site. It is possible to obtain a composite molded article 1 using, for example, so that material recycling can be promoted.

The above-mentioned eco-cement is the one known as cement produced from incinerated ash of municipal solid waste, waste generated in urban areas such as wastewater sludge, and incinerated slag and volcanic ash slag as main raw materials. These are recycled resource-type cements, and organic harmful substances are detoxified by being decomposed at high temperature in the production process of eco-cement.

The invention of claim 4 is, for example, as shown in FIGS.
As shown in FIG. 7, in the composite molded product 21 according to any one of claims 1 to 3, the contact portions 26, ..., 27 ,.
, 28a, ... that are inclined toward one end 21a of the composite molded product 21, and second inclined portions 29 that are inclined toward the other end 21b of the composite molded product 21. , 29
, and the first inclined portion 28, ..., 28a ,.
Is a midway portion of both ends of the composite molded article 21 (for example, CC
Is provided between the central portion 21c) in the direction and one end portion 21a, and the second inclined portions 29, ..., 29a, ... Are provided between the midway portion 21c and the other end portion 21b. It is characterized by being

According to the invention of claim 4, the contact portion 2
6, ..., 27, ... are one end portions 21 of the composite molded article 21.
28a, ... and the other end 21b which are inclined to the a side and which are provided between the middle part 21c of both ends of the composite molded product 21 and one end 21a. Tilt to the side,
Also, since the second inclined portion 29, ..., 29a, provided between the intermediate portion 21c and the other end portion 21b is provided, the first inclined portion formed in the recess 24 ,. 28,
... and the second inclined portion 29, ...
, Can be prevented from being separated from each other in the vertical direction, and the first inclined portion 2 formed on the convex portions 25 ,.
.. and the second inclined portions 29a, .. can prevent the recesses 24, .. Therefore, the resin molded product 22 and the cement molded product 2
3 can be joined more reliably and firmly,
The strength of the composite molded product 21 as a whole can be improved.

The invention of claim 5 is, for example, as shown in FIGS.
A method for producing a composite molded article 1 for producing the composite molded article 1 according to any one of claims 1 to 4, comprising a mold 10 and the cement installed in the mold 10. A soft inner mold 11 having the same shape as the molded product 3 is prepared, and first, the inner mold 11 is installed in the mold 10 to form the resin molded product 2 in the mold 10. A resin molded product molding part 15 having the same shape is formed, and then the resin molded product molding part 15 is filled with the resin material to form a resin molded product 2.
From the resin molded product 2 to the inner mold 11
And the internal mold 11 is taken out of the mold 10 to form a cement molded product molding part 16 having the same shape as the cement molded product 3 in the mold 10, and then the cement molded product. The cemented material is filled in the molding portion 16 to mold the cement molded product 3, and the cement molded product 3 and the resin molded product 2 are fitted to the concave portions 4, ... And the convex portions 5 ,. It is characterized by joining by.

According to the fifth aspect of the present invention, the resin molding material is filled in the resin molding molding portion 15 formed by installing the inner mold 11 in the mold 10 to form the resin molding 2. Molding, and then the resin molding 2 to the inner mold 1
By removing 1 to fill the formed cement molded product molding portion 16 with the cement-based material to mold the cement molded product 3, a resin molded product and a concrete panel are manufactured in the conventional manner. After that, the composite molded product 1 in which the resin molded product 2 and the cement molded product 3 are integrally formed can be manufactured at one time without adhering them with an adhesive. Therefore, the number of construction steps can be reduced, and the construction period can be shortened.
Further, since the cement molded product 3 and the resin molded product 2 are joined by fitting the concave portions 4, ... And the convex portions 5, ..., The concave portions 4, ... And the convex portions 5 ,. , The recess 4, ...
The abutting portions 6, ... Formed on the above prevent the fitted convex portions 5 ,.
The contact portions 7, ... Formed on the ... Prevent the fitting recesses 4 ,. Therefore, the resin molded product 2 and the cement molded product 3 are more
It is possible to securely and firmly bond the composite molded product 1 and to improve the strength of the composite molded product 1 as a whole. Further, since the inner mold 11 is soft, when the inner mold 11 is removed from the resin molded product 2, for example, the molded resin molded product 2 is formed as compared with the case where the inner mold is made of metal or wood. By freely deforming the soft inner mold 11 without deforming the shape of, it is possible to easily remove and mold smoothly.

The invention of claim 6 is, for example, as shown in FIGS.
As shown in FIGS. 9 (a) to 9 (c), a method of manufacturing a composite molded product 21 for manufacturing the composite molded product 21 according to claim 4, which is a mold 35 and is installed in the mold 35. Of the cement molded product 23, a cement molded product 23 provided between a middle part (for example, a central portion 21c in the CC direction) of both ends of the composite molded product 21 and one end 21a, The first internal mold 36 having the same shape, and the cement molded product 23 provided between the midway portion 21c and the other end portion 21b.
A second internal mold 37 having the same shape as that of the first internal mold 36 and the second internal mold 37 are first prepared in the mold 35.
And the resin molded product molding part 42 having the same shape as the resin molded product 22 is formed in the mold 35, and then the resin molded product molding part 42 is filled with the resin material. To mold the resin molded product 22, and then, from the resin molded product 22, the first internal mold 36 to the first inclined portion 28, ...
And slide along the second inner mold 37.
Are slid along the second inclined portions 29, ... And the first internal mold 36 and the second internal mold 37 are taken out of the mold 35, so that the cement molded product 23 can be placed in the mold 35. Forming a cement molded product molding part 43 having the same shape as
Next, the cement-based material is filled into the cement-molded product molding portion 43 to mold the cement-molded product 23, and the cement-molded product 23 and the resin-molded product 22 are separated into the concave portions 24, ... It is characterized by joining by fitting with 25, ....

According to the sixth aspect of the invention, the resin-based material is formed in the resin-molded product molding portion 42 formed by installing the first internal mold 36 and the second internal mold 37 in the mold 35. To mold the resin molded product 22, and then from the resin molded product 22 to the first internal mold 36 and the second internal mold 3.
7, the first inclined portion 28, ... And the second inclined portion 29,
Slide along the first internal mold 36 and the second internal mold 36
Since the cement-based material is filled in the cement-molded product molding portion 43 formed by removing the inner mold 37 to mold the cement-molded product 23, a resin-molded product and a concrete panel are manufactured as in the conventional case. Then, the composite molded product 21 in which the resin molded product 22 and the cement molded product 23 are integrally formed can be manufactured at once without adhering them with an adhesive. Therefore, the number of construction steps can be reduced, and the construction period can be shortened. Further, since the cement molded product 23 and the resin molded product 22 are joined by fitting the concave portions 24, ... And the convex portions 25, ..., The concave portions 24, ... And the convex portions 25 ,.
Are fitted to each other, and the abutting portion 2 formed in the recesses 24, ...
6 prevent the fitted convex portions 25, ... from being separated from each other, and the concave portions 24, ... Fitted by the abutting portions 27 formed on the convex portions 25 ,. Prevent separation. Therefore, the resin molded product 22 and the cement molded product 23 can be bonded to each other more reliably and firmly than in the conventional case, and the strength of the composite molded product 21 as a whole can be improved. Further, from the resin molded product 22 to the first internal mold 36 and the second internal mold 37.
Are slid along the first inclined portion 28, ... And the second inclined portion 29, ..., and removed, so that the first internal mold 36 and the second internal mold 37 are easily slid and easily removed from the resin molded product 22. It is possible to mold smoothly.

The invention of claim 7 is, for example, as shown in FIGS.
1. As shown in FIGS. 13 (a) to 13 (c), a method of manufacturing a composite molded article 51 for manufacturing the composite molded article 51 according to claim 4, comprising a mold 67 and a mold 67 Among the cement molded products 53 that are installed, midway portions of both ends of the composite molded product 51 (for example, the central portion 51c in the EE direction).
And a third internal mold 68 having the same shape as the cement molded product 53 provided between the one end 51a and the intermediate part 51a.
A fourth internal mold 69 having the same shape as the cement molded product 53 provided between c and the other end 51b is prepared,
First, the third internal mold 68 and the fourth internal mold 6 are placed in the mold 67.
9 is installed to form a resin molded product molding part 74 having the same shape as the resin molded product 52 in the mold 67, and then the resin molded product molding part 74 is filled with the resin material. Then, the resin molded product 52 is molded, and then the third internal mold 68 is rotated from the resin molded product 52 in an arc shape around the one end 51a side of the composite molded product 51. , The fourth internal mold 69, the composite molded article 51
The third inner mold 68 and the fourth inner mold 69 are rotated in an arc shape around the other end 51b side of the mold 6 as a center.
7 to form a cement molded product molding part 75 having the same shape as the cement molded product 53 in the mold 67, and then the cement molded product molding part 75 is filled with the cement-based material. Then, the cement molded product 53 is molded, and the cement molded product 53 and the resin molded product 52 are joined by fitting the concave portions 54, ... And the convex portions 55 ,.

According to the invention of claim 7, the resin-based material is formed in the resin-molded product molding portion 74 formed by installing the third internal mold 68 and the fourth internal mold 69 in the mold 67. To mold the resin molded product 52, and then from the resin molded product 52 to the third internal mold 68 and the fourth internal mold 6.
9 is rotated in an arc shape around one end 51a side and the other end 51b side of the composite molded product 51 to move the third internal mold 68 and the fourth internal mold 69. Since the cement molding material 75 is molded by filling the cement molding material molding part 75 with the cement-based material,
As in the prior art, after the resin molded product and the concrete panel are manufactured, respectively, the resin molded product 52 and the cement molded product 5 can be treated at once without adhering them with an adhesive.
It is possible to manufacture a composite molded product 51 in which 3 and 3 are integrally formed. Therefore, the number of construction steps can be reduced, and the construction period can be shortened. In addition, the cement molded product 53 and the resin molded product 52 are connected to the recess 54,
, And the convex portions 55, ... Are joined by fitting, so that the concave portions 54 ,.
The abutting portions 56, ... Formed on the 4, ... prevent the fitted convex portions 55, ... from being separated from each other, and the abutting portions 57, ... Formed on the convex portions 55 ,. , The fitted recesses 54, ... Are prevented from separating. Therefore, as compared with the conventional case, the resin molded product 52 and the cement molded product 53 can be bonded more reliably and firmly, and the strength of the composite molded product 51 as a whole can be improved. Further, the third internal mold 68 and the fourth internal mold 69 are rotated from the resin molded product 52 in an arc shape around the one end 51a side and the other end 51b side of the composite molded product 51. As it is removed, the third internal mold 68
And the fourth inner mold 69 can be easily rotated, and the resin molded product 51
It can be easily removed from and can be molded smoothly.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, first to third embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the first of the present invention.
2A to 2D are perspective views of the composite molded article of the embodiment, and FIGS. 2A to 2D are process diagrams showing steps of manufacturing the composite molded article. As shown in FIG. 1, a composite molded article 1 according to the first embodiment of the present invention.
Is a resin molded product 2 molded from a resin-based material containing a resin.
And a cement molded product 3 molded from a cement-based material containing cement. That is,
The cement molded product 3 is joined to the back surface of the resin molded product 2.

The resin-based material contains cellulose-based fine powder particles, and the cellulose-based fine powder particles are obtained from a wood waste material containing impurities, and the resin is obtained from a resin waste material containing impurities. Is. The cement-based material is ecocement containing incinerated slag, volcanic ash slag, and the like.

The resin molded product 2 has a plurality of concave portions 4, ...
Are formed, and the cement molded product 3 is formed with a plurality of convex portions 5 that fit into the concave portions 4. Recesses 4, ... of the resin molded product 2 and cement molded product 3
Of the composite molded product 1 is on the side of one side end surface (A
-A direction) and a direction orthogonal to one side end face direction (B
In the −B direction) at predetermined intervals. That is,
The convex part of the resin molded product 2 and the concave part of the cement molded product 3 are
The resin molded product 2 is formed in a lattice shape so as to extend in one side end surface direction (AA direction) and the other side end surface direction (BB direction) of the composite molded product 2. Of the cement molded product 3 and the concave parts 4, ...
Are formed.

The concave portions 4, ... Of the resin molded product 2 and the convex portions 5, ... Of the cement molded product 3 are brought into contact with each other so that the resin molded product 2 and the cement molded product 3 are separated from each other. Abutting portions 6, ..., 7, ... for preventing the above are formed. Further, these concave portions 4, ... And convex portions 5 ,.
It is formed in a substantially keyhole shape in a side sectional view, which is provided with a circular portion 8 having a substantially circular shape in a side sectional view and an extending portion 9 communicating with the circular portion 8.

Now, a method of manufacturing the composite molded product 1 for manufacturing the composite molded product 1 will be described. First, the resin material is prepared. That is, for example, by pulverizing wood waste materials discharged when a building such as a house is dismantled, scrap materials discharged during building construction, wood waste materials such as sawdust, etc. with a known crushing device, cellulosic fine powder Get the grains. Next, for example, a resin is obtained by similarly crushing a resin waste material such as a tray, a packaging member such as a food container, etc., which has been used for packaging foods or the like and then collected, by a crushing device.

Then, the cellulose-based fine powder particles obtained as described above, the resin, and the pigment are mixed so as to be uniformly distributed to obtain a resin-based material, and the resin-based material is heated and melted by an extruder. To be extruded by extrusion molding.

On the other hand, as shown in FIG.
And the cement molded product 3 installed in the mold 10.
A flexible inner mold 11 having the same shape as the above is prepared. The mold 10 includes an upper mold 12 having a substantially U-shaped cross section and a lower mold 13 having a substantially straight cross section. The lower mold 13 has a filling port 14 communicating with the mold 10. Is provided. The inner mold 11 is made of a soft material such as silicon that is strong against heat.

Then, the inner mold 11 is installed in the mold 10 to form a resin molded product molding portion 15 having the same shape as the resin molded product 2 in the mold 10. Next, as shown in FIG. 2 (b), an extruded material containing a resin-based material is filled into the resin-molded article molding portion 15 of the mold 10 from the filling port 14 by applying a predetermined temperature and pressure. Then, it is solidified and molded into a desired shape to obtain a resin molded product 2. After that, as shown in FIG. 2C, the lower mold 13 is removed, the silicon inner mold 11 is removed from the resin molded product 2, the inner mold 11 is taken out of the mold 10, and the lower mold 13 is again removed. By installing, the cement molded product forming portion 16 having the same shape as the cement molded product 3 is formed in the mold 10.

Next, as shown in FIG. 2 (d), a cement-based material (for example, concrete or the like) containing eco-cement prepared in advance in the cement-molded article molding portion 16 is prepared.
Is filled by applying a predetermined temperature and pressure from the filling port 14 to be solidified and molded into a desired shape to obtain a cement molded product 3
And the cement molded product 3 and the resin molded product 2
Are joined by fitting the concave portions 4, ... And the convex portions 5 ,.
Finally, the upper mold 12 and the lower mold 13 are removed. In this way, the composite molded product 1 is manufactured by providing the cement molded product 3 on the back surface of the resin molded product 2.

Composite molded article 1 of the first embodiment of the present invention
According to the above, the concave portions 4, ... Formed in the resin molded product 2 and the convex portions 5, ... Formed in the cement molded product 3 are brought into contact with each other, whereby the resin molded product 2 and the cement molded product 3 are Abutting portions 6, ..., 7, for preventing the and from separating from each other
.. are formed, it is possible to prevent the concave portions 4, ... and the convex portions 5, .. Therefore, the resin molded product 2 and the cement molded product 3 can be bonded more reliably and firmly, and the strength of the composite molded product 1 as a whole can be improved.

Since the resin-based material contains the cellulose-based fine powder particles, wood powder appears on the surface of the obtained resin molded product 2 and the texture can be improved. Moreover, since wood waste and resin waste are used, it is excellent from the viewpoint of effective use of resources and environmental protection.

Since the cement-based material utilizes incineration slag, volcanic ash slag, etc., which have been mainly discarded at the final disposal site, the composite molded article 1 using waste can be obtained. Therefore, material recycling can be promoted.

Composite molded article 1 of the first embodiment of the present invention
According to the manufacturing method of (1), the resin-molded product molding part 15 formed in the mold 10 is filled with a resin material to mold the resin-molded product 2, and then the resin-molded product 2 is moved to the inner mold 11. Since the cement-based material is molded into the cement-formed product molding portion 16 formed by removing the cement-based material,
The composite molded product 1 in which the resin molded product 2 and the cement molded product 3 are integrally formed can be manufactured at one time. Also,
Since the cement molded product 3 and the resin molded product 2 are joined by fitting the concave portions 4, ... And the convex portions 5, ..., It is possible to prevent the concave portions 4 ,. It is possible to improve the strength of the composite molded article 1 as a whole. Furthermore, since the inner mold 11 is flexible, the inner mold 11
When the resin is removed from the resin molded product 2, it can be easily removed without deforming the shape of the molded resin molded product 2, and the molding can be performed smoothly.

In the composite molded article 1 according to the first embodiment of the present invention, the recesses 4, ... And the projections 5, ... Are shaped like a keyhole in a side sectional view. , And the convex portions 5, ... Are provided with contact portions 6, ..., 7, ... For preventing the resin molded product 2 and the cement molded product 3 from being separated from each other. It suffices to have, for example, a dovetail shape in a side cross section or a T shape in a side cross section.

Next, a composite molded article according to the second embodiment of the present invention will be described. 3 is a perspective view of a composite molded article according to a second embodiment of the present invention, FIG. 4 is a top view of FIG.
FIG. 5 is a bottom view of a resin molded product forming a composite molded product, and FIG.
4 is a side view of CC in FIG. 4, and FIG. 7 is C-C in FIG.
C side sectional view, FIG. 8 is a DD side sectional view in FIG. 4, FIG.
(a)-(c) is process drawing which shows the process of manufacturing a composite molded product. The composite molded product 21 according to the second embodiment of the present invention
Is different from the composite molded article 1 of the first embodiment in the shape of the concave portion and the convex portion. As shown in FIG. 3, the second aspect of the present invention
The composite molded article 21 according to the embodiment of the present invention is a cement molded article 23 molded from a cement-based material containing cement on the back surface of a resin molded article 22 molded from a resin-based material containing resin.
Are joined together.

As shown in FIGS. 5 to 8, a plurality of recesses 24, ... Are formed in the resin molded product 22, and the cement molded product 23 is fitted into the recesses 24 ,. A plurality of convex portions 25, ... Are formed. Resin molded product 22
, And the projections 25 of the cement molded product 23,
5, are provided at predetermined intervals in one side end face direction (CC direction) of the composite molded product 21 and in a direction (DD direction) orthogonal to the one side end face direction. There is.
That is, the convex portion of the resin molded product 22 and the concave portion of the cement molded product 23 are formed in one side end surface direction (C
-C direction) and the other side end surface direction (DD direction) are formed in a lattice shape so as to respectively extend, so that the concave portions 24, ... Of the resin molded product 22 and the convex portions of the cement molded product 23. 25, ... Are formed.

The concave portions 24, ... Of the resin molded product 22 and the convex portions 25, ... Of the cement molded product 23 are brought into contact with each other as shown in FIG. 7, so that the resin molded product 22 and the cement molded product 23. Contact portions 26, ..., 27, ... are formed to prevent the and from separating from each other. The contact part 2
6, ..., 27, ... are one end portions 21 of the composite molded article 21.
, 28a, which are inclined toward the a side (one end side in the CC direction), and the other end 21b side (the other end in the CC direction) of the composite molded product 21. Department side)
, 29a, and so on.

The first inclined portions 28, ..., 28a ,.
The second sloped portions 29, ..., 29a, ... Are provided between the middle portions (center portions in the CC direction) 21c of both ends of the composite molded product 21 and the one end 21a. 21
21c at the middle of both ends (center in CC direction)
And the other end 21b. That is, the concave portions 24, ... Of the resin molded product 22 and the convex portions 25 ,. Is doing. The recessed portions 24, ... Are provided with a first recessed portion 30 formed by two first inclined portions 28, 28.
And a second recess 32 formed by two second inclined portions 29, 29. The convex portions 25, ...
First convex portion 31 formed by the inclined portions 28a, 28a
And a second convex portion 33 formed by the two second inclined portions 29a and 29a.

Further, the recesses 24, ... Of the resin molded product 22.
As shown in FIG. 8, the convex portions 25, ... Of the cement molded product 23 have a substantially rectangular shape in a side sectional view on the other side end surface side (DD direction) of the composite molded product 21. That is, the concave portions 24, ... And the convex portions 25, .. are the plurality of first vertical portions 34 ,.
34a, ..., Two of these first vertical parts 3
4, 34, 34a, 34a, respectively.

Next, a method for manufacturing the composite molded product 21 for manufacturing the composite molded product 21 according to the second embodiment of the present invention will be described. In the manufacturing method of the composite molded product 21 of the second embodiment of the present invention, the description of the same parts as those of the manufacturing method of the composite molded product 1 of the first embodiment will be omitted, and only the differences will be described. explain. First, an extruded material containing the resin material is prepared in the same manner as in the first embodiment. On the other hand, as shown in FIG. 9 (a), a mold 35 and a middle part of the cement molded product 23 (the center in the CC direction) of the composite molded product 21 installed in the mold 35. Part) 21c and one end 21a, a first internal mold 36 having the same shape as the cement molded product 23, the intermediate part (center part in the CC direction) 21c, and the other end 21b. A second internal mold 37 having the same shape as the cement molded product 23 provided between the first and second molds is prepared.

The die 35 includes an upper die 38 and a lower die 39, which are substantially U-shaped in a side cross-section, and the upper die 38 and the lower die 3 are provided.
9 is provided with filling ports 40 and 41 communicating with the inside of the mold 35. The first internal mold 36 and the second internal mold 37
Is a metal mold. The first internal mold 36 includes a first internal mold convex part 36a having the same shape as the first convex part 31 of the cement molded product 23, and the first internal mold convex part 36a.
Fits into the first recess 30 of the resin molded product 22. The second inner mold 37 is provided with a second inner mold projection 37a having the same shape as the second projection 33 of the cement molded product 23, and the second inner mold projection 37a is the resin molded product 2.
It is adapted to fit in the second second recess 32.

By installing the first internal mold 36 and the second internal mold 37 in the mold 35, a resin molded product molding portion 42 having the same shape as the resin molded product 22 is formed in the mold 35. (See FIG. 9 (a)). Next, as shown in FIG. 9 (b), an extruded material containing a resin material is applied to the resin molded product forming portion 42 of the mold 35 from the filling port 40 of the upper mold 38 at a predetermined temperature and pressure. The resin molded product 22 is filled and solidified into a desired shape. Thereafter, as shown in FIG. 9C, the lower mold 39 is removed, and the resin molded product 22 is removed from the first inner mold 36.
Is slid along the first inclined portion 28, and the second inner mold 37 is slid along the second inclined portion 29, so that the first inner mold 36 and the second inner mold 37 Is taken out of the mold 35 and the lower mold 39 is installed again to form a cement molded product molding portion 43 having the same shape as the cement molded product 23 in the mold 35.

Next, although not shown, a cement-based material (for example, concrete) containing ecocement prepared in advance is applied to the lower mold 3 of the cement molded product molding portion 43.
A predetermined temperature and pressure are applied from a filling port 41 of 9 to be solidified to mold the cement molded product 23 into a desired shape, and the cement molded product 23 and the resin molded product 2 are also molded.
Are joined by fitting the concave portions 24, ... And the convex portions 25, ... Finally, the upper mold 38 and the lower mold 39 are removed. In this way, the composite molded product 21 is manufactured by providing the cement molded product 23 on the back surface of the resin molded product 22.

Composite molded article 2 of the second embodiment of the present invention
1, the abutting portions 26, ..., 27, ... are inclined toward the one end 21a side of the composite molded product 21, and the intermediate portion 21c and the one end 21a of the composite molded product 21 are provided. , 28a, ... and a second inclined portion 28c that is inclined toward the other end 21b and is provided between the intermediate portion 21c and the other end 21b. Inclined portion 29, ..., 29a,
, And the first inclined portions 28, ..., 2
, And the second inclined portions 29, ..., 29a, .. can prevent the concave portions 24, ... and the convex portions 25 ,. Therefore, the resin molded product 22 and the cement molded product 23 can be bonded more reliably and firmly, and the strength of the composite molded product 21 as a whole can be improved.

In the composite molded product 21 of the second embodiment of the present invention, the same effects can be obtained for the same components as those of the composite molded product 1 of the first embodiment.

Composite molded article 2 of the second embodiment of the present invention
According to the manufacturing method of No. 1, the resin-molded product 2 is formed by filling the resin-molded product molding portion 42 formed in the mold 35 with the resin-based material.
2 and then the resin molded product 22 to the first inner mold 36.
And the second internal mold 37 is slid along the first inclined portion 28, ... And the second inclined portion 29 ,. Since the cement molded product 23 is molded, the composite molded product 21 in which the resin molded product 22 and the cement molded product 23 are integrally formed can be manufactured at one time. In addition, the cement molded product 23 and the resin molded product 22 are not
, And the convex portions 25, ... Are joined by fitting,
It is possible to prevent the concave portions 24, ... And the convex portions 25, ... from being separated from each other, and it is possible to improve the strength of the composite molded article 21 as a whole. Further, since the first internal mold 36 and the second internal mold 37 are slid and removed from the resin molded product 22, the resin molded product 22 can be easily removed and smoothly molded.

Next, a composite molded article according to the third embodiment of the present invention will be described. FIG. 10 is a bottom view of a resin molded product that constitutes a composite molded product according to the third embodiment of the present invention, and FIG.
1 is a sectional view taken along the line EE in FIG. 10, FIG. 12 is a sectional view taken along the line FF in FIG. 10, and FIGS. 13 (a) to 13 (c) are process diagrams showing the steps for producing a composite molded article. The third aspect of the present invention
The composite molded article of this embodiment is different from the composite molded article 21 of the second embodiment in the shape of the recesses and protrusions. Figure 1
As shown in FIGS. 0 to 12, the composite molded article 51 according to the third embodiment of the present invention is made of a cement-based material containing cement on the back surface of a resin-molded article 52 molded from a resin-based material containing resin. The cement molded product 53 that has been molded is joined.

The resin molded product 52 has a plurality of recesses 5.
4 are formed, and the cement molded product 53 is formed with a plurality of convex portions 55, which fit into the concave portions 54 ,. The concave portions 54, ... Of the resin molded product 52 and the convex portions 55, ... of the cement molded product 53 are, as shown in FIG. 10, one end face direction (EE direction) of the composite molded product 52 and one side. A direction (F-F
Direction), at predetermined intervals. That is, the convex portion of the resin molded product 52 and the concave portion of the cement molded product 53 are
By forming the composite molded product 51 in a lattice shape so as to extend in one side end surface direction (EE direction) and the other side end surface direction (FF direction), respectively, the resin molded product 52 The concave portions 54, ... And the convex portions 55, ... Of the cement molded product 53 are formed.

The concave portions 54, ... Of the resin molded product 52 and the convex portions 55, ... Of the cement molded product 53 are brought into contact with each other as shown in FIG. 11, so that the resin molded product 52 and the cement molded product 53. Contact portions 56, ..., 57, ... are formed to prevent the and from separating from each other. The contact portions 56, ..., 57, ... Are one end 5 of the composite molded article 51.
, 58a, ... And a fourth inclined portion 59, ..., 59a, ... Inclined to the other end 51b side of the composite molded article 51.

The third inclined portions 58, ..., 58a ,.
Provided between the middle part (center part in the EE direction) 51c of both ends of the composite molded product 51 and one end 51a, the fourth inclined parts 59, ..., 59a, ... 51
51c at the middle of both ends (center in EE direction)
And the other end 51b. Further, the second vertical portions 64, 64a are provided between the midway portion 51c of the composite molded article 51 and the one end portion 51a, and between the midway portion 51c and the other end portion 51b, The third vertical portion 65,
65a is provided. That is, the resin molded product 5
2 and the convex portion 5 of the cement molded product 53.
5, 5 have a trapezoidal shape in a side cross-sectional view on one side end surface side (EE direction) of the composite molded article 51. The recesses 54, ... Have a third recess 60 formed by one third inclined portion 58 and one second vertical portion 64, one fourth inclined portion 59, and one third vertical portion 65. And a fourth recess 62 formed by. The convex portion 55,
... is one third inclined portion 58a and one second vertical portion 6
4a and the third convex portion 61 and one fourth
It is provided with a fourth convex portion 63 formed by the inclined portion 59a and one third vertical portion 65a.

Further, as shown in FIG. 12, the concave portions 54, ... Of the resin molded product 52 and the convex portions 55, ... Of the cement molded product 53 are the other side end surface side (FF) of the composite molded product 51.
Direction), the side cross-section has a substantially rectangular shape. That is, the concave portions 54, ... And the convex portions 55, .. are a plurality of fourth vertical portions 66, 6 extending in the vertical direction of the composite molded article 51.
6a, of which two of the fourth vertical portions 66, 6
6, 66a, 66a, respectively.

Next, a method for manufacturing the composite molded product 51 for manufacturing the composite molded product 51 according to the third embodiment of the present invention will be described. In the manufacturing method of the composite molded article 51 of the third embodiment of the present invention, the description of the same parts as those of the manufacturing method of the composite molded articles 1 and 21 of the first and second embodiments is omitted. Only different points will be described. First, an extruded material containing a resin material is prepared in the same manner as in the first embodiment. On the other hand, as shown in FIG. 13 (a), a mold 67 and a middle part (EE) of the cement molded product 53, which is installed in the mold 67, of the composite molded product 51.
(A central portion in the direction) 51c and one end portion 51a, and a third internal mold 68 having the same shape as the cement molded product 53, and provided between the intermediate portion 51c and the other end portion 51b. A fourth internal mold 69 having the same shape as the cement molded product 53 is prepared.

The die 67 includes an upper die 70 and a lower die 71 which are substantially U-shaped when viewed from the side. The upper die 70 and the lower die 7 are provided.
1 is provided with filling ports 72 and 73 communicating with the inside of the mold 67. The third internal mold 68 and the fourth internal mold 69
Is a metal mold. The third internal mold 68 has a third internal mold projection 68a having the same shape as the third convex part 61 of the cement molded product 53, and the third internal mold projection 68a.
Is fitted into the third recess 60 of the resin molded product 52. The fourth inner mold 69 is provided with a fourth inner mold protrusion 69a having the same shape as the fourth protrusion 63 of the cement molded product 53, and the fourth inner mold protrusion 69a is the resin molded product 5.
It is adapted to fit in the second fourth recess 62.

By installing the third internal mold 68 and the fourth internal mold 69 in the mold 67, a resin molded product molding portion 74 having the same shape as the resin molded product 52 is formed in the mold 67. (See FIG. 13 (a)). Next, as shown in FIG. 13 (b), the upper mold 70 is attached to the resin molded product molding portion 74 of the mold 67.
An extruded material containing a resin material is filled through the filling port 72 at a predetermined temperature and pressure to be solidified and solidified to form a resin molded product 52 into a desired shape. Then, as shown in FIG. 13 (c), the lower mold 71 is removed, and the resin molded product 52 and the third inner mold 68 are rotated in an arc shape around the one end side 51a of the composite molded product 52. , Fourth internal mold 69
Is rotated in an arc around the other end side 51b of the composite molded product 51 to move the third internal mold 68 and the fourth internal mold 69 out of the mold 67, and again the lower mold. By installing 71, the cement molded product 53 can be placed in the mold 67.
A cement molded product molding portion 75 having the same shape as the above is formed.

Next, although not shown, a cement-based material (for example, concrete) containing eco-cement prepared in advance is applied to the lower mold 7 in the cement molded product molding portion 75.
The cement molded article 53 is molded into a desired shape by solidifying it by applying a predetermined temperature and pressure from the filling port 73 of No. 1 and the cement molded article 53 and the resin molded article 5.
Are joined by fitting the concave portions 54, ... And the convex portions 55 ,. Finally, the upper mold 70 and the lower mold 71 are removed. In this manner, the composite molded product 51 is manufactured by providing the cement molded product 53 on the back surface of the resin molded product 52.

Composite molded article 5 according to the third embodiment of the present invention
1, the composite molded article 2 according to the second embodiment of the present invention
Similar effects can be obtained with respect to the same components as those of the first embodiment.

Composite molded article 5 according to the third embodiment of the present invention
According to the manufacturing method of No. 1, the resin molded product molding portion 74 formed in the mold 67 is filled with the resin material to form the resin molded product 5
2 and then the resin molded product 52 to the third inner mold 68.
And the fourth internal mold 69 to the cement molded product molding portion 75 formed by rotating and moving the one end 51a side and the other end 51b side of the composite molded product 51 in an arc shape. Since the cement molded product 53 is molded by filling the cement-based material, the composite molded product 51 in which the resin molded product 52 and the cement molded product 53 are integrally formed at one time
Can be manufactured. Further, the cement molded product 53 and the resin molded product 52 are joined by fitting the concave portions 54, ... And the convex portions 55 ,.
The composite molded product 51 can be prevented from separating.
The strength as a whole can be improved. further,
Resin molded product 52 to third internal mold 68 and fourth internal mold 6
Since 9 is rotated and removed in an arc shape, it can be easily removed and molding can be performed smoothly.

The composite molded products 1, 21, 51 according to the first to third embodiments of the present invention are, for example, paving stones laid on the floor of a paved road, veranda, roof balcony, roof garden, etc. Can be used for

In the composite molded products 1, 21 and 51 of the first to third embodiments of the present invention, the resin material is
Although it is described that the cellulose-based fine particles are included, for example, the resin may be included without including the cellulose-based fine particles. Further, although the cellulose-based fine particles are obtained from wood waste, they may be obtained from, for example, natural wood, bagasse, rice straw, or the like.

Further, in the method of manufacturing the composite molded products 21, 51 according to the second and third embodiments of the present invention, the first internal mold 36, the second internal mold 37, the third internal mold 68, the fourth internal mold 36. The inner mold 69 is made of metal, but may be made of wood, for example.

[0062]

According to the invention of claim 1, it is possible to prevent the concave portions and the convex portions from being separated from each other by the abutting portions formed on the concave portions and the convex portions, and the strength of the entire composite molded product is improved. Can be improved.

According to the invention of claim 2, not only the same effect as in claim 1 can be obtained, but also wood powder appears on the surface of the obtained resin molded product to improve the texture. it can. Further, by utilizing wood waste materials and resin waste materials, it is excellent from the viewpoint of effective use of resources and environmental protection.

According to the invention of claim 3, not only the same effects as those of claim 1 or 2 can be obtained, but also a composite molded article using incineration slag or volcanic ash slag can be obtained. Therefore, material recycling can be promoted.

According to the invention of claim 4, it is of course possible to obtain the same effect as that of any one of claims 1 to 3, and it is possible to prevent the concave portions and the convex portions from being separated from each other in the vertical direction. You can Therefore, the strength of the composite molded article as a whole can be improved.

According to the invention of claim 5, it is possible to manufacture a composite molded product in which a resin molded product and a cement molded product are integrally formed at one time. Also, by the abutting portion,
It is possible to prevent the concave portions and the convex portions from being separated from each other, and it is possible to improve the strength of the composite molded article as a whole. Furthermore, since the inner mold is soft, it can be easily removed from the resin molded product without deforming the shape of the molded resin molded product, and smooth molding can be performed.

According to the invention of claim 6, it is possible to manufacture a composite molded product in which a resin molded product and a cement molded product are integrally formed at one time. Also, by the abutting portion,
It is possible to prevent the concave portions and the convex portions from being separated from each other, and it is possible to improve the strength of the composite molded article as a whole. Furthermore, since the first internal mold and the second internal mold are slid from the resin molded product and removed, they can be easily removed.

According to the invention of claim 7, it is possible to manufacture a composite molded product in which a resin molded product and a cement molded product are integrally formed at one time. Also, by the abutting portion,
It is possible to prevent the concave portions and the convex portions from being separated from each other, and it is possible to improve the strength of the composite molded article as a whole. Furthermore, since the third internal mold and the fourth internal mold are rotated and removed from the resin molded product in an arc shape, they can be easily removed.

[Brief description of drawings]

FIG. 1 is a perspective view of a composite molded article for showing a first embodiment of the present invention.

FIG. 2 (a) to FIG. 2 (d) are process drawings showing a process for producing a composite molded article.

FIG. 3 is a perspective view of a composite molded article for showing a second embodiment of the present invention.

FIG. 4 is a top view of the same in FIG.

FIG. 5 is a bottom view of the resin molded product that constitutes the composite molded product.

FIG. 6 is a side view of CC in FIG.

7 is a sectional view taken along the line CC in FIG.

FIG. 8 is a sectional view taken along the line DD in FIG.

9 (a) to 9 (c) are process diagrams showing a process for producing a composite molded article.

FIG. 10 is a bottom view of a resin molded product constituting a composite molded product, for illustrating the third embodiment of the present invention.

11 is a sectional view taken along line EE in FIG.

12 is a sectional view taken along line FF in FIG.

FIG. 13 (a) to FIG. 13 (c) are process diagrams showing a process for producing a composite molded article.

[Explanation of symbols]

1,21,51 Composite molded products 2,22,52 Resin molded products 3,23,53 Cement molded products 4,24,54 recess 5,25,55 convex 6,7,26,27 Contact part 10,35,67 mold 11 Internal type 15,42,74 Resin Molding Products Molding Section 16,43,75 Cement molded product molding department 21a, 51a One end 21b, 51b the other end 21c, 51c Midway part 28, 28a 1st inclined part 29, 29a Second inclined portion 36 First internal type 37 Second internal type 68 Third internal type 69 Fourth internal type

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) E04F 15/02 B29L 9:00 B29L 9:00 31:10 31:10 E04C 1/40 TF term (reference) ) 2D051 AD07 AE05 AF03 AF05 AG06 AG11 AH02 DA01 DB02 DC06 DC09 4F100 AC00B AE01B AJ04A AK01A AP00A BA02 DB03 DD01A DD01B DE01A EH112 EH311 EH312 GB90 JL02 J02 02L06A4F211 AD04 AD11 AG02 TA02 02H02 DA02 DBH

Claims (7)

[Claims] 1. A composite molded product obtained by joining a resin molded product molded from a resin or a resin-based material containing a resin and a cement molded product molded from a cement-based material containing cement, wherein the resin One of the molded product and the cement molded product is formed with a concave portion, the other is formed with a convex portion that fits into the concave portion, the concave portion and the convex portion, by abutting each other, A composite molded article, wherein an abutting portion is formed to prevent the resin molded article and the cement molded article from separating from each other. 2. The composite molded article according to claim 1, wherein the resin-based material contains cellulose-based fine powder particles, and the cellulose-based fine powder particles are obtained from wood waste containing impurities. A composite molded article characterized by being obtained from a resin waste material containing the same. 3. The composite molded article according to claim 1 or 2, wherein the cement-based material is ecocement containing incinerated slag, volcanic ash slag and the like. 4. The composite molded article according to claim 1, wherein the abutting portion is a first inclined portion that is inclined toward one end side of the composite molded article and the other of the composite molded article. Second inclined to the end side of the
An inclined portion, the first inclined portion is provided between a middle portion and one end portion of both ends of the composite molded article, and the second inclined portion includes the middle portion and the other end portion. A composite molded article characterized by being provided between the two. 5. A method for producing a composite molded article for producing the composite molded article according to any one of claims 1 to 4, which comprises a mold and a cement molded product which is installed in the mold and is the same as the cement molded product. A flexible internal mold having a shape is prepared, and first, by installing the internal mold in a mold, a resin molded product molding part having the same shape as the resin molded product is formed in the mold. Next, the resin-based material is filled in the resin-molded product molding portion to mold the resin-molded product, and then the internal mold is removed from the resin-molded product and the internal mold is removed from the mold. To form a cement molded product molding part having the same shape as the cement molded product in the mold, and then filling the cement molded material into the cement molded product molding part to form a cement molded product. While molding, the cement molded product and the resin molded product are Method for producing a composite molded article, characterized in that joining by fitting between the convex portion. 6. A method for producing a composite molded article according to claim 4, wherein the composite molded article is a mold and a cement molded article installed in the mold, the cement molded article. Having the same shape as the cement molded product provided between the middle part of both ends of the and one end
An internal mold and a second internal mold having the same shape as the cement molded product provided between the middle part and the other end are prepared, and first, the first internal mold and the second internal mold are provided in a mold. (2) By installing an internal mold, a resin molded product molding part having the same shape as the resin molded product is formed in the mold, and then the resin molded product molding part is filled with the resin material. Molding a resin molded product, and then sliding the first internal mold from the resin molded product along the first inclined portion and sliding the second internal mold along the second inclined portion. First of these
By taking the inner mold and the second inner mold out of the mold,
A cement molded product molding part having the same shape as the cement molded product is formed in the mold, and then the cement material is filled in the cement molded product molding part to mold the cement molded product, and A method for producing a composite molded product, characterized in that a cement molded product and the resin molded product are joined together by fitting the concave portion and the convex portion. 7. A method of manufacturing a composite molded article according to claim 4, wherein the mold is a mold and the composite molded article of the cement molded articles installed in the mold. Which has the same shape as the cement molded product provided between the one end and the middle of both ends of the third
An internal mold and a fourth internal mold having the same shape as the cement molded product provided between the midway portion and the other end are prepared, and first, the third internal mold and the 4 By installing an internal mold, a resin molded product molding part having the same shape as the resin molded product is formed in the mold, and then the resin molded product molding part is filled with the resin-based material. , Molding a resin molded product, and then rotating the third internal mold from the resin molded product in an arc shape with one end side of the composite molded product as a center, and the fourth internal mold , By rotating in an arc shape around the other end side of the composite molded article and moving the third internal mold and the fourth internal mold out of the mold, the cement is put in the mold. A cement molded product molding part having the same shape as the molded product is formed, and then the cement molded product molding part is formed on the cement molded product molding part. Of a cement molded product by filling the cement molded product with the cement-based material, and joining the cement molded product and the resin molded product by fitting the concave portion and the convex portion. .