JP2002088944A - External-facing concrete unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an external-facing concrete unit, in which a facing plate arranged onto the front of a concrete unit body is not peeled and does not fall easily. SOLUTION: A plurality of the facing plates 2, 2 and the like are joined on the front of the concrete unit body 1, and connection auxiliary metallic materials 3, 3 and the like fixed onto the rears of the facing plates 2, 2 and the like are entwined with concrete and connected firmly to the concrete unit body 1 in each facing unit. The connection auxiliary metallic materials 3 are composed of plate-shaped base sections 3a joined and fixed onto the rears of the facing plates 2, beltlike oblique pieces 3b and 3b erected obliquely externally from both sides of the base sections 3a, beltlike parallel pieces 3c and 3c further extended externally respectively from both oblique pieces 3b and 3b and boltholes 3d bored at the centers of the base sections 3a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exterior concrete unit used for the exterior of a building such as an RC structure, and more particularly to a relatively large stone or thick tile having a large specific gravity in front of a concrete unit body. And the like.

[0002]

2. Description of the Related Art Conventionally, this type of exterior concrete unit is constructed by pressing various decorative material plates such as tiles on the front surface of a concrete unit main body. The decorative material plate to be crimped on the front of such a concrete unit body is often a lightweight tile.However, due to the demand for design diversity and the like, it is desirable to crimp a stone or a thick tile with a large specific gravity. There is also a strong hope to do. However, if such a decorative material plate is simply crimped to the concrete unit body, there is a possibility that it will fall off due to aging and so on. There was a problem that was too big.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, enhances the bonding force between the concrete unit main body and the decorative material plate, and is disposed on the front surface of the concrete unit main body. Even if the decorative material plate is a heavy member such as a stone or thick tile,
It is an object of the present invention to provide an exterior concrete unit that does not easily peel off and fall.

[0004]

According to one aspect of the present invention, there is provided an exterior concrete unit having a plurality of decorative material plates arranged on a front surface of a concrete unit main body. This is an exterior concrete unit which is entangled with the concrete of the concrete unit main body to strengthen the connection between the concrete unit main body and the decorative material plate.

According to a second aspect of the present invention, in the exterior concrete unit according to the first aspect of the present invention, there is provided a flat base for joining and fixing the bonding aid to the back surface of the decorative material plate, and a diagonally outer side from both sides of the base. A belt-shaped oblique piece that rises toward the front, a strip-shaped parallel piece that extends further outward from each of the two oblique pieces, a parallel piece that extends parallel to the base, and a bolt hole that opens in the center of the base. It is an exterior concrete unit configured.

According to a third aspect of the present invention, in the exterior concrete unit according to the second aspect of the present invention, a nut member is embedded at a plurality of positions on the back surface side of the decorative material plate, and a base is brought into contact with the embedded position of the nut member. In this state, the connecting auxiliary metal is arranged, a fixing bolt is inserted from the outer surface side of the base through the bolt hole, and the fixing bolt is screwed into the nut member, so that the connecting auxiliary metal is attached to the back surface of the decorative material plate. It is a fixed exterior concrete unit.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is an exterior concrete unit having a plurality of decorative material plates arranged on the front surface of a concrete unit main body. It is entangled and firmly connected to the concrete unit main body.

The decorative material plate is mainly a plate-like stone material having a large specific gravity, a thick tile, a large ceramic plate, or the like. Of course, a small and lightweight tile can be adopted.

[0009] If the above-mentioned joining auxiliary hardware is entangled with the concrete of the concrete unit main body and is capable of firmly connecting the decorative material plate on which it is fixed to the concrete unit main body, its structure is limited to a specific one. There is no reason to limit.

However, the exterior concrete unit is
For example, in the case where the required number of decorative material plates with the bonding auxiliary hardware attached to the back surface are arranged in the formwork with the back surface facing upward, and the necessary reinforcement is arranged, and then concrete is poured and configured. The auxiliary metal fittings must be configured so that the poured concrete sufficiently wraps around the periphery thereof, including the back side, so that no void or the like is formed around the periphery.

[0011] Thus, for example, the joining auxiliary hardware includes a flat base fixed on the back surface of the decorative material plate, a band-shaped oblique rising from both sides of the base, and both obliques. Further, it may be a strip-shaped parallel piece extending outward, comprising a parallel piece extending parallel to the base, and a bolt hole opened at the center of the base.

[0012] In the case where the exterior concrete unit is constructed as described above using the decorative material plate with the back surface attached thereto, the joining auxiliary metal member configured as described above does not cause any voids in the concrete. The concrete unit of the constructed exterior concrete unit is firmly connected to the concrete unit body. For this reason, the decorative material plate on which the joining auxiliary hardware is attached to the back surface is firmly and securely joined to the concrete unit main body.

Needless to say, it is necessary to securely and firmly attach the bonding aid to the decorative material plate so that it is not easily detached from the decorative material plate.
If it can be mounted in such a manner, the specific mounting method is not limited to a specific method.

For example, it is possible to embed a nut member in a predetermined portion on the back surface side of the decorative material plate, and attach the joining auxiliary metal member using the nut member and a corresponding bolt member.

[0015] The auxiliary metal fittings are opened at the center of the base, the flat base, the band-shaped oblique portions on both sides of the base, the parallel oblong portions extending from both oblique portions, In the case of a configuration using bolt holes, the joining auxiliary hardware can be attached to the back surface of the decorative material plate as follows.

That is, nut members are buried in a plurality of positions on the back side of the decorative material plate, and the coupling auxiliary hardware is arranged in a state where the base is in contact with the position where the nut members are buried. By inserting a fixing bolt through the bolt hole from above and screwing the fixing bolt to the nut member, the joining auxiliary hardware can be fixed to the back surface of the decorative material plate.

The nut member can also be embedded in a predetermined position on the back surface of the decorative material plate by various techniques. The configuration is not limited to a specific configuration as long as it can be reliably embedded in the back surface of the decorative material plate in a direction orthogonal to the surface with high strength.

For example, the nut member is fixed to the center of the upper surface of the locking pedestal so that the axis thereof stands upright, and the locking pedestal is formed in a trapezoidal shape with a side portion expanding downward. Is inserted into a trapezoidal space extending downward formed on the back surface of the decorative material plate, and the nut member is disposed so as to rise up into an opening opening upward from the upper portion thereof.

The trapezoidal space and the opening are provided at the side thereof with a large-diameter charging portion which can easily receive the locking pedestal and the nut member. The pedestal and the nut member communicate with each other so as to be able to move to the trapezoidal space and the opening.

In this way, the nut member is inserted into the large-diameter charging portion together with the locking pedestal, and is moved to the side to move the locking pedestal into the trapezoidal space, and the nut member is opened. Start up. The locking pedestal is fixed to the trapezoidal space in a direction perpendicular to the back surface of the decorative material plate, and the nut member is also fixed in that direction through the trapezoidal space. Therefore, if the joining auxiliary hardware is fixed to the back surface of the decorative material plate with a bolt member screwed to the nut member, the joining auxiliary hardware is strongly and securely fixed to the back surface of the decorative material plate. Become.

Therefore, according to the exterior concrete unit of the present invention, the decorative material plate can be attached to the front surface of the concrete unit main body with high strength in a direction orthogonal to the surface direction. When used for the exterior of a building, there is almost no possibility that the decorative material plate will peel off and fall due to its aging.

In particular, when a heavy stone material or a thick tile is used as a decorative material plate, the danger of falling is generally increased. Since the plate is firmly fixed to the concrete unit main body and there is no fear of peeling, there is naturally no possibility that the plate will fall.

[0023]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 6 show one embodiment of the present invention. FIG. 1 is an exploded schematic perspective view showing a state where a bonding auxiliary metal on the back of a decorative material plate is separated, and FIG. FIG. 3 (a) is a front view showing a nut member attached to the locking pedestal, and FIG. 3 (b) is a side view showing the nut member attached to the locking pedestal. FIG. 4 (a) is an enlarged front view of the coupling auxiliary hardware, FIG. 4 (b) is an enlarged plan view of the coupling auxiliary hardware, FIG. 4 (c) is an enlarged side view of the coupling auxiliary hardware, and FIG. FIG. 6 is a schematic perspective view showing a state in which the decorative material plates are inserted and prepared to form an exterior concrete unit, FIG. 6 is a schematic perspective view of the exterior concrete unit, and FIG. 7 is a schematic enlarged view of the exterior concrete unit. It is sectional drawing.

As shown in FIG. 6, the exterior concrete unit of this embodiment has a plurality of decorative material plates 2, 2,... Joined to the front surface of a concrete unit main body 1, and each of the decorative material plates 2, 2,. As shown in FIG. 7, the bonding aids 3, 3,... Fixed on the back surface are entangled with concrete and firmly bonded to the concrete unit main body 1. In addition, in the figure, 11 is a reinforcing bar.

The decorative material plates 2, 2,... Used in this embodiment are stone materials (granite) cut into a plate shape.

FIG. 4 (a) is a perspective view of the joining auxiliary metal part 3.
As shown in (b) and (c), a flat base 3a joined and fixed to the back surface of the decorative material plate 2, and band-shaped oblique pieces 3b and 3b rising obliquely outward from both sides of the base 3a. , And are formed by strip-shaped parallel pieces 3c, 3c extending further outward from the oblique pieces 3b, 3b, respectively, and a bolt hole 3d opened at the center of the base 3a. The parallel piece 3
c and 3c extend in parallel with the base 3a, respectively. Further, the joining aid 3 is made of stainless steel.

The joining aid 3 is attached to the decorative material plate 2 using a nut member 4 and a bolt member 5 embedded therein.

As shown in FIGS. 3 (a) and 3 (b), the nut member 4 is fixedly mounted at the center of the upper surface of the locking pedestal 6 in a state where the axis is upright. The locking base 6 has a trapezoidal shape in which the side portions are spread downward, and the locking base 6 is formed on the back surface of the decorative material plate 2 as shown in FIG. The nut member 4 is placed in the trapezoidal space 7a, and the nut member 4 is arranged so as to rise up into an opening 7b that opens upward from the upper part. The locking base 6, the nut member 4, and the bolt member 5 are all made of stainless steel.

As shown in FIG. 1, the locking pedestal 6 and the nut member 4 are easily mounted on the side of the trapezoidal space 7a and the opening 7b formed on the back surface of the decorative material plate 2. A large-diameter charging portion 8 capable of being inserted is provided, and the locking pedestal 6 and the nut member 4 inserted therethrough can be moved to the trapezoidal space 7a and the opening 7b.
Communication between them.

With the above-described configuration, the nut member 4 is inserted into the large-diameter charging portion 8 together with the locking pedestal 6 and is moved to the side, as shown in FIG. The locking pedestal 6 can be moved to the trapezoidal space 7a, and the nut member 4 can be raised in the opening 7b. In this way, the locking pedestal 6 is fixed by the trapezoidal space 7a in a direction orthogonal to the back surface of the decorative material plate 2, so that the nut member 4 is also fixed in that direction. Become.

As shown in FIGS. 1 and 2, the coupling aid 3 has its base 3a in contact with the portion where the nut member 4 is arranged, and connects the bolt member 5 to the nut through the bolt hole 3d. The member 4 is screwed into the member 4, and the joining aid 3 is fixed to the decorative material plate 2. The bolt member 5
Is inserted through the washer 9 into the bolt hole 3d.

As described above, since the nut member 4 is fixed by the locking pedestal 6 fixed by the large-diameter space 7a, as described above, the coupling auxiliary hardware 3 is
It is firmly and reliably fixed to the back surface of the decorative material plate 2.

The exterior concrete unit of this embodiment comprises the required number (four in this embodiment) of decorative material plates 2, 2... As shown in FIG. 5, after arranging in a mold 10 with the back surface facing upward, and performing necessary reinforcing arrangements not shown in FIG. It is configured as follows.

In the above description, the above-mentioned joining aids 3, 3,...
When the concrete is poured, the concrete goes around well without forming a gap around the concrete and is entangled well, and is firmly connected to the concrete unit main body 1 of the exterior concrete unit to be constructed. Therefore, the decorative material plates 2, 2,... To which the joining auxiliary hardware 3, 3,... Are attached to the back surface are firmly and securely joined to the concrete unit main body 1.

Therefore, according to the exterior concrete unit of this embodiment, the decorative material plates 2, 2,... Can be attached to the front surface of the concrete unit main body 1 in a high strength state. When used for the exterior of an object, there is almost no possibility that the decorative material plates 2, 2,...

[0036]

Therefore, according to the exterior concrete unit of the present invention, the decorative material plate can be attached to the front surface of the concrete unit body with high strength in the direction perpendicular to the surface direction. ,
Even when used for the exterior of buildings such as RC structures, there is almost no possibility that the decorative material plate will peel off and fall due to its aging.

In particular, when a heavy stone or a thick tile is used as a decorative material plate, the danger of falling is generally increased. Since the plate is firmly fixed to the concrete unit main body and there is no fear of peeling, there is naturally no possibility that the plate will fall.

According to the second exterior concrete unit of the present invention, at the time of molding, the concrete to be cast goes around the auxiliary metal fittings well, does not generate any voids, and is tightly entangled. The connection between the joining auxiliary hardware and the concrete unit main body becomes strong, and therefore, the connection between the decorative material plate on which the joining auxiliary hardware is fixed and the concrete unit main body also becomes strong.

According to the third exterior concrete unit of the present invention, the joining auxiliary hardware can be easily and firmly attached to the decorative material plate. Through this, the decorative material plate can be firmly connected to the concrete unit main body. Can be done.

[Brief description of the drawings]

FIG. 1 is an exploded schematic perspective view showing a state where a bonding auxiliary metal on the back surface of a decorative material plate is separated.

FIG. 2 is a cross-sectional view showing a state in which a joining auxiliary hardware is attached to a back surface of a decorative material plate.

FIG. 3A is a front view showing a nut member attached to a locking base. (b) is a side view showing the nut member attached to the locking base.

FIG. 4 (a) is an enlarged front view of a joining auxiliary hardware. (b) is an enlarged plan view of a joining auxiliary hardware. (c) is an enlarged side view of the joining auxiliary hardware.

FIG. 5 is a schematic perspective view showing a state in which a decorative material plate is inserted and arranged in a formwork, and preparation for molding an exterior concrete unit is being performed.

FIG. 6 is a schematic perspective view of an exterior concrete unit.

FIG. 7 is a schematic enlarged sectional view of an exterior concrete unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete unit main body 2 Decorative material plate 3 Coupling auxiliary hardware 3a Base 3b Oblique 3c Parallel piece 3d Bolt hole 4 Nut member 5 Bolt member 6 Locking pedestal 7a Trapezoid space 7b Opening 8 Large-diameter insertion part 9 Washer 10 type Frame 11 Reinforcing bar

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E125 AA51 AD07 AE01 AG20 AG60 BA02 BA32 BA42 BB16 BC02 BC06 BD01 BE01 BF03 CA05 EA12 2E162 CA11

Claims (3)

[Claims] 1. An exterior concrete unit comprising a plurality of decorative material plates arranged on the front surface of a concrete unit main body, wherein a bonding auxiliary metal is fixedly mounted on the back surface of the decorative material plate, and is connected to the concrete of the concrete unit main body. And an exterior concrete unit which strengthens the connection between the concrete unit main body and the decorative material plate. 2. A flat base for joining and fixing the joining auxiliary metal to the back surface of the decorative material plate, a band-shaped oblique piece rising obliquely outward from both sides of the base, and further out of the two oblique pieces. 2. The exterior concrete unit according to claim 1, wherein the exterior concrete unit is a strip-shaped parallel piece extending toward the base, the parallel piece extending parallel to the base, and a bolt hole opened at the center of the base. 3. 3. A nut member is embedded at a plurality of locations on the back side of the decorative material plate, and the coupling auxiliary metal is arranged in a state in which a base is in contact with a position where the nut member is embedded.
3. The exterior concrete unit according to claim 2, wherein a fixing bolt is inserted through the bolt hole from an outer surface side of the base, and the fixing bolt is screwed to the nut member to fix the joining auxiliary hardware to the decorative material plate.