JP2005048548A - Mortar concrete product, its molding method and its molding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve facility in positioning; and to prevent dislocation in the three-dimensional direction and the plane direction. <P>SOLUTION: This mortar concrete product presents a square shape, and has respectively a projecting part 2 on one side surface, and a fitting hole 3 fitted by adapting the projecting part 2 to a position opposed to the projecting part 2, on the other side surface opposed to the one side surface. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mortar / concrete product, and more particularly to a mortar / concrete product such as a flat plate or a block used for a material constituting a structure such as a paved surface, a staircase, or a wall surface, a molding method thereof, and a molding apparatus thereof.

As a prior art related to the present invention, there is a concrete laying block in which a protrusion is formed on one side surface and a fitting groove into which the protrusion is fitted is formed on the other side for easy positioning and prevention of displacement. (For example, see Patent Document 1)
International Publication Number WO00 / 61868 (page 6, line 28 to page 7, line 10, FIGS. 4 to 6)

However, the laying block described in Patent Document 1 prevents the displacement of the laying blocks in the vertical direction between the laying blocks in the state where the ridges are fitted in the fitting grooves. It is not assumed at all.
Also, positioning is performed with the ridges of the laying blocks and the side intersecting the fitting groove on the same surface, and the ridge and the fitting groove are directly involved in improving the ease of positioning. In addition, the ease of positioning is not particularly improved.

Therefore, the present invention has an object of improving the ease of positioning and preventing displacement in the three-dimensional direction and the planar direction, and an object of the present invention is to provide a mortar / concrete product that solves this problem.
Furthermore, an object of the present invention is to provide a molding method and a molding apparatus for the mortar / concrete product.

The present invention employs the following technical means to solve the above problems.
The technical means is a mortar-concrete product that forms an arbitrary structure by being arranged in a row, and has a convex portion on one side thereof that exhibits a square shape, and the convex portion on the other side facing the side surface. One or a plurality of fitting holes for fitting and fitting the convex portions of other mortar / concrete products that are continuously provided to each other, and the convex portions are fitted into the fitting holes. The mortar / concrete product is characterized in that the mortar / concrete product is continuously arranged to prevent displacement in a plane direction and a three-dimensional direction. (Claim 1)
Furthermore, two each of the said convex part and a fitting hole are provided, and while the position of these convex part and a fitting hole exists in a symmetrical position on the boundary between the centerline between convex parts, the side part of mortar and concrete products mutual Are arranged in a staggered manner, and when the convex portions are fitted into the fitting holes, the sides of the mortar / concrete product are aligned with the center line of the mortar / concrete product. (Claim 2)
A method for molding the mortar / concrete product according to claim 1 or 2 by immediate demolding, wherein a convex mold formed in the mold after filling and pressing the material in the mold The molding method is characterized in that the fitting hole mold part and the molded product are removed from the mold, and the convex mold part and the fitting hole mold part are separated from each other and molded. (Claim 3)
An apparatus for molding the mortar / concrete product of claim 1 or 2 by immediate demolding, comprising a convex part and a fitting hole mold part in the mold, and fitting with the convex part The hole mold part is a molding apparatus characterized in that it is removed from the mold when the molded product is removed, and is spaced apart from the molded product. (Claim 4)

According to the mortar / concrete product of the present invention, since the mortar / concrete product can be accurately aligned and stacked by fitting the convex portion into the fitting hole, the mortar / concrete product of the mortar / concrete product is provided. Positioning can be performed easily, and laying and stacking operations can be performed quickly.
In addition, since the displacement between the three-dimensional direction and the planar direction is prevented by the fitting between the convex portion and the fitting hole, it is possible to suppress the occurrence of rattling, steps, gaps, and the like.
Further, according to the mortar-concrete product of the present invention, the mortar-concrete product can be arranged with the side surfaces of the mortar-concrete product facing each other according to the configuration of claim 2, and the mortar-concrete product can also be arranged alternately. It can comprise in the state which exhibited the effect.
Further, the mortar / concrete product of the present invention can be easily obtained by using the molding method according to claim 3 and the molding apparatus according to claim 4, and the mortar / concrete product of the present invention having unevenness as in claims 1 and 2. It can be reliably molded.
Therefore, since it can shape | mold by the immediate demolding type | mold which demolds before material hardens completely, mass production is implement | achieved.

As described above, the mortar / concrete product of the present invention is a mortar / concrete flat plate, block, tile or the like used for a structure such as a paved surface, a staircase, or a wall surface.
The mortar / concrete product of the present invention uses dry concrete with little moisture, but an admixture for improving the curability and adjusting the porosity may be mixed as necessary.
Moreover, the mortar / concrete product of the present invention has a convex portion on one side surface of two opposing side surfaces and a fitting hole on the other side surface, as exemplified in the examples described later. As exemplified in other embodiments, a convex portion may be provided on two non-opposing side surfaces of the four side surfaces, and a fitting hole may be provided on the other two side surfaces facing each other. -Select arbitrarily according to the continuous form of concrete products.
The molding method and molding apparatus of the present invention mold the material filled in the mold by pressurization and vibration in the same manner as in normal molding.

Examples of mortar and concrete products according to the present invention will be described below with reference to FIGS.
In addition, the mortar concrete product in a present Example demonstrates and demonstrates as a flat plate laid on the sidewalk, for example.

The flat plate 1 has a square shape, and two protrusions 2 are integrally formed on one side surface thereof, and two fitting holes 3 are integrally formed on the other side surface facing this.
The convex part 2 and the fitting hole 3 are shape | molded in the position which mutually opposes.
The positions of the projections 2 and the fitting holes 3 are such that when the flat plate 1 is laid as shown in FIG. 3, the center line C between the convex portions 2 is aligned with the side portions 11 of the continuous flat plate 1. In position.
In the flat plate 1 of this example, as shown in FIG. 3, the flat plates 1 can be laid alternately, and a shift in the downward direction and the planar direction can be prevented.
As another embodiment of the flat plate 1, as shown in FIG. 4, the convex portion 2 is formed on the two non-opposing side surfaces and the fitting hole 3 is formed on the other two side surfaces facing each other, as in the above example. The thing of the form provided in the position can be illustrated.
In the flat plate 1 of this example, as shown in FIG. 5, the side portions 11 of the flat plates 1 can be laid in a straight line without being displaced, and displacement in the vertical direction and the planar direction can be prevented.
Further, the flat plate 1 of the above embodiment is formed by integrally molding a plurality (two) of the convex portions 2 and the fitting holes 3, but this may be one or more than three. It is often selected arbitrarily according to the form of connection. (Not shown)

Next, a molding apparatus for the flat plate 1 having the above structure will be described with reference to FIGS.
In this embodiment, a molding apparatus is schematically shown, and a molding method is shown in the explanation of the operation.

The molding apparatus A of the present embodiment is detachably mounted on the mold A1, the convex mold part A2 and the fitting hole mold part A3 mounted in the mold A1, the mold release part A4, and the mold release part A4. And a bottom plate A5 that constitutes the bottom of the formwork.
As shown in FIGS. 6A and 7, the mold A1 has a box shape corresponding to the outer shape of the flat plate 1 in a normal state (before demolding), and the flat plate 1 is fitted on the inner surface on the left side in the drawing. A convex fitting hole mold a31 for molding the joint hole 3 is provided, and a concave convex mold A21 for molding the convex part of the flat plate 1 is provided on the inner surface on the right side in the drawing.
The convex mold A21 protrudes from the convex mold A2, and the fitting hole mold A31 projects from the fitting hole mold A3.

The convex mold part A2 and the fitting hole mold part A3 are slidably fitted in the guide groove A11 formed in the mold A1, and are rotatable so as to expand outward in the mold release part A4. At the time of mold removal, it is supported and escapes from the guide groove A11 in the mold A. At the same time, the mold is separated from the convex portion 2 and the fitting hole 3 molded on the flat plate 1 by rotating outward and expanding. . (See FIG. 6 (c) and FIG. 8)
The demolding part A4 demolds the flat plate 1 molded by moving up and down by a vertical movement means (not shown). (See FIG. 6 (c))
The bottom plate A5 is placed in the shape of the demolding portion A4 during material filling (see FIG. 6 (a)), pressurization / vibration (see FIG. 6 (b)), and demolding (see FIG. 6 (c)). Then, it is removed from the demolding portion A4 with the flat plate 1 molded after demolding placed thereon, and is also used for transporting and drying the flat plate.

Hereinafter, a method for molding the flat plate 1 using the molding apparatus A will be described.
(1) The material 11 is filled in the molding apparatus A in a state where the bottom plate A5 is placed on the mold release part A and the mold release part is lowered. (See Fig. 6 (a))
(2) The filled material 11 is pressed and vibrated by a pressing means P and a vibrating means (not shown). (See FIG. 6 (b))
(3) By raising the mold release part A4, the molded flat plate 1 is removed from the mold A1, and the convex part A2 and the fitting hole mold part A3 are escaped from the guide groove A11 and the outside. The mold release is completed by separating from the convex portion 2 and the fitting hole 3 which are formed in the flat plate 1 and are expanded. (See FIG. 6 (c))
(4) After the demolding, the flat plate 1 is manufactured by removing the flat plate 1 molded together with the bottom plate A5 from the demolding portion A4 and drying it as it is. (Not shown)

  In this embodiment, the rotation structure of the convex portion and the fitting hole mold portion is not specifically described. For example, the structure that is rotated by the operator's hand, or the convex portion and the fitting hole. Examples include a structure in which the mold part is automatically rotated by its own weight, and a structure in which the convex part and the fitting hole mold part are forcibly rotated by a spring or a motor.

The top view of the concrete product which concerns on this invention. (2)-(2) sectional view taken on the line of FIG. An example of a laying state is shown. The top view which shows the other example of the concrete product which concerns on this invention. An example of a laying state is shown. 1 shows a molding apparatus and a molding method according to the present invention. The top view of the molding apparatus which concerns on this invention. The top view which shows a demolding state.

Explanation of symbols

A: Demolding device 1: Flat plate 2: Convex part 3: Fitting hole A1: Formwork A2: Convex part A3: Fitting hole part A4: Demolding part A5: Bottom plate A11: Guide groove A21: Convex part type A31: Fitting hole type

Claims (4)

It is a mortar / concrete product that forms an arbitrary structure by connecting it continuously,
The convex part of the other mortar / concrete product to be connected is fitted and fitted in a position facing the convex part on the other side facing the outer side surface. One or a plurality of fitting holes are provided, and mortar / concrete products are connected in a state where the convex portions are fitted in the fitting holes, thereby preventing displacement in the plane direction and the three-dimensional direction. Mortar and concrete products characterized by   The projections and fitting holes are each provided in two, and the positions of the projections and fitting holes are symmetrical with respect to the center line between the projections, and the sides of the mortar / concrete product are staggered. The mortar / concrete product mutual side portions are aligned with the center line of the mortar / concrete product mutual when the convex portions are fitted in the fitting holes. Mortar and concrete products as described in 1.   A method for molding the mortar-concrete product according to claim 1 or 2 by immediate demolding, wherein the projecting mold part and the fitting hole mold part formed in the mold after molding in the mold, A molding method, wherein the molded product is removed from the mold, and the convex mold part and the fitting hole mold part are spaced apart from each other.   An apparatus for molding the mortar / concrete product of claim 1 or 2 by immediate demolding, comprising a convex part and a fitting hole mold part in the mold, and these convex part and fitting hole mold The molding apparatus is characterized in that the part is detached from the mold when the molded product is removed, and is spaced apart from the molded product.

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