JP3124588B2 - Manufacturing method of PC board with large ceramic plate and anchor metal used for it - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a PC board with a large ceramic plate to be used as an outer wall of a concrete building, and an anchor metal used therefor. It is like that.

[0002]

2. Description of the Related Art When installing tile pieces on the outer wall of a building,
Conventionally, it is performed by a wet-type application method. In such a case, mortar or the like is applied to the tile-attached wall surface, and a tile piece is pressed and attached to the surface. However, when the tile pieces are large, the mortar layer is displaced by the weight of the tiles simply by attaching the tiles to the wall surface where the tiles are attached, and the displacement is gradually increased and the tile pieces are peeled off. In addition, since the thermal expansion coefficients of the tile pieces and the mortar layer are different, gaps are created due to the temperature difference between day and night or between summer and winter, and rainwater or the like infiltrates the back side of the tile pieces for a long time and the water freezes. Also, the tile pieces easily peel off due to weathering for a long time. For this reason, it has been proposed that a metal wire is stretched in the mortar layer so that the protrusion on the back surface of the tile piece is hung on the metal wire to prevent the tile from peeling and falling (Japanese Patent Publication No. 3-36380). Gazette).
Also, as described in Japanese Utility Model Publication No. 2-29126, as an anchor hardware for fixing a tile to a wall surface,
An anchor hardware is known in which a pressing plate pushes an inclined leg piece by pushing a bolt and a nut to push a claw piece outward, thereby locking the claw piece in a hanging hole of a tile.

[0003]

In the above prior art, the tile pieces are hung with a metal wire. However, when the rear projection of the tile piece is hung with a metal wire during construction, the metal wire is buried in the mortar. The work was difficult because I could not see it. Further, the metal wire only engages with the recess of the protrusion on the back surface of the mortar, and the protrusion of the tile piece may come off from the metal wire due to vibration or the like. For this reason, if a large ceramic plate is used as the tile piece in the above, it seems that peeling and falling cannot be completely prevented. In addition, the anchor hardware that locks the nail into the hanging hole of the tile by tightening the bolt and nut must be further fixed through a connecting bracket when it is fixed to the concrete wall, and when it is locked to the tile. Since the bolts and nuts must be tightened, the work of locking the tiles is a laborious operation, which is not desirable.

Accordingly, the present invention provides a large-sized ceramic plate which is capable of following an out-of-plane displacement such as expansion, shrinkage change and vibration due to temperature even when a large-sized ceramic plate is attached to a concrete PC plate. It is an object of the present invention to reliably prevent peeling and falling of a plate. Another object of the present invention is to make it possible to easily attach the anchor hardware to a large ceramic plate and to embed it in a concrete plate to directly fix it.

[0005]

In order to achieve the above object, a method of manufacturing a PC board with a large ceramic plate according to the present invention, in order to achieve the above object, is to install springs of anchor hardware in grooves having a C-shaped cross section provided at several places on the back surface of the large ceramic plate. After locking both ends of the board and applying a cushioning material to the back of the large ceramic board, place it horizontally with the back of the large ceramic board facing up and cast concrete on the large ceramic board to manufacture a PC board I did it. According to the anchor hardware of the present invention, the center projection of the substantially W-shaped spring plate is sandwiched between two metal plates, the projecting side of the spring plate is covered with a box, and both ends of the band plate are inclined outwardly. The top of the metal center is placed on the ceiling of the box, the bolt is penetrated from the holding metal to the pad on the outside of the spring plate, screwed into the pad, and the length between both ends of the spring plate is tightened by the bolt. Can be changed.

[0006]

In the above-mentioned anchor metal, both ends of the W-shaped spring plate are narrowed at first by tightening a bolt, and both ends are inserted into a C-shaped groove of a large ceramic plate. Both ends are expanded by the spring force and locked in the C-shaped groove. Thereafter, when the concrete is poured, the spring plate is covered with the box, so that the spring plate is not covered with the concrete, and the spring force of the spring plate is maintained even after the concrete is hardened. In addition, the cushioning material is interposed between the large ceramic plate and the concrete plate, and the spring plate is provided on the anchor metal which connects the large ceramic plate and the concrete plate. And the large ceramic plate does not peel off from the concrete plate.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an embodiment of the anchor metal according to the present invention will be described with reference to FIGS. Patches 2a and 2b are provided on both sides of the top of the spring plate 1 which is gently bent into a substantially W shape,
As will be described later, both ends of the spring plate 1 are narrowed by being tightened with the bolts 3 between the backing plates 2a and 2b. The contact metal 2a is applied to the valley at the top, and the metal contact 2b larger than the metal contact 2a is applied to the two peaks at the top of the spring plate 1. The top side of the leaf spring plate 1 is 1
One surface is covered with an open box 4 so that the spring plate 1 cannot be buried in concrete 12 described later.

[0008] Holding hardware 5 arranged on the ceiling plate of the box 4
, The both ends of the band plate are inclined outwardly, and the central top of the band plate is overlapped with the box 4. The stacking order in this state is as follows: one contact 2a, the spring plate 1, the other contact 2b,
The box body 4 and the holding hardware 5 are arranged in this order, and the bolts 3 penetrate them, and the bolts 3 can be screwed into the metal fittings 2a which also serve as nuts and fastened. The tightening of the bolt 3 reduces the distance between the tops of the spring plate 1, so that the spring plate 1
2A are narrowed as shown in FIG. 2A, and then the bolts 3 are loosened so that both ends of the spring plate 1 are spread as shown in FIG. 2B. That is, in FIG. 2, the relationship is l ₁ <l ₂ and h ₁ <h ₂ . The ceiling plate of the box body 4 may be provided with the function of the contact metal 2b without providing the contact metal 2b.

Next, a method of manufacturing a PC board with a large ceramic plate of the present invention using the above anchor metal will be described with reference to FIGS. On the back surface of the large ceramic plate 10, grooves 11 for fixing anchor hardware are provided at appropriate intervals as shown in FIG. 3, for example. The groove 11 has a C-shaped cross section as shown in FIG. The large-sized ceramic plate 10 is made by performing various color printings and firing, and for example, has a plane size of 900 × 1200 to 2500 mm and is considerably heavy.

Insert both ends of the spring plate 1 of the anchor metal into the respective grooves 11 on the back surface of the large ceramic plate 10,
Is loosened and the both ends of the spring plate 1 are spread to abut against the inner wall of the groove 11 to be locked. In this state, the peripheral edge of the opening of the anchor metal box 4 is in contact with the back surface of the large ceramic plate 10. In addition, a buffer material 6 such as silica sand is applied to the back surface of the large ceramic plate 10 so that the expansion difference and vibration between the large ceramic plate 10 and concrete 12 described later can be absorbed.

Next, the large ceramic plate 10 on which the anchor hardware 2 is locked is placed horizontally with its back face up, a concrete formwork is provided around it, and concrete is poured on the large ceramic plate 10. . At the time of this concrete casting, since the spring plate 1 of the anchor metal is covered by the box body 4, the spring plate 1 is not buried in the concrete 12, and the spring plate 1 is kept in a state having a spring force. And absorbs vibration, thermal expansion difference, and the like between the large ceramic plate 10 and a concrete plate 12a described later.

Further, if the mold is removed after the concrete is hardened, a PC board with a large ceramic plate is completed. In this state, since the outwardly inclined portion of the holding hardware 5 of the anchor hardware is embedded in the concrete plate 12a, the large-sized ceramic plate 10 and the concrete plate 12a are integrally fixed. The back surface of 10 and the concrete plate are connected by the spring plate 1, so that the difference in thermal expansion and vibration are absorbed by the spring plate 1.

[0013]

According to the present invention, a large ceramic plate having a large flat surface and a large weight is fixed to a concrete plate with an anchor metal. It does not fall off. In addition, since the anchor hardware is attached to the large ceramic plate by loosening the bolts and then concrete is cast with the surface of the large ceramic plate facing down, the large ceramic plate can be manufactured easily and easily without damaging it. Applicable to members and veranda handrail members, etc., it can be made to be excellent in design. In addition, the cushioning material is interposed between the large ceramic plate and the concrete plate, and the spring plate of the anchor metal is interposed, so that the difference in thermal expansion due to temperature change and vibration are absorbed, and the large ceramic plate may be damaged, There is no such thing as peeling.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a state in which a large ceramic plate is fixed to a concrete plate by an anchor metal according to the present invention.

FIGS. 2A and 2B are explanatory views of a state in which both ends of a spring plate of an anchor metal are narrowed (a) and a state in which both ends are expanded (b).

FIG. 3 is a rear view showing an arrangement state of a fixing anchor on a large ceramic plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spring plate 3 Bolt 4 Box 5 Holding hardware 10 Large ceramic plate 11 Groove 12 Concrete

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Muneyoshi Yanagisawa 4-6-115 Sendagaya, Shibuya-ku, Tokyo Inside Fujita Co., Ltd. (72) Inventor Yasushi Ishii 1-1-1 Kagamachi, Ichigaya-cho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Inventor Hiroyuki Amemiya 1-1-1, Ichigaya-Kaga-cho, Shinjuku-ku, Tokyo Inside Dai-Nippon Printing Co., Ltd. (56) References Japanese Utility Model Application Sho 62-141842 (JP, U) (58) ) Surveyed field (Int.Cl. ⁷ , DB name) E04C 2/00-2/54 E04F 13/08-13/18 E04B 1/38-1/60

Claims (2)

(57) [Claims] A bolt and a nut are provided between a top portion of a substantially W-shaped spring plate and a center top portion of a holding metal member having both ends of a band plate sloping outward so as to cover a projecting side of the spring plate. And the anchor metal parts are connected to each other, and the spring plate ends of the anchor metal parts are respectively engaged in grooves having a cross-section of a letter C in several places on the back surface of the large ceramic plate, and then the cushioning material is applied to the back surface of the large ceramic plate A method for manufacturing a PC board with a large ceramic plate, comprising: placing the large ceramic plate horizontally with its back surface facing upward, and pouring concrete on the large ceramic plate to produce a PC board. 2. An anchor fitting embedded in concrete so as to fix a large ceramic plate to a PC plate, wherein a center projection of a substantially W-shaped spring plate is sandwiched between two metal plates. The projecting side of the spring plate is covered with a box, and the center top of the holding hardware with both ends of the strip sloping outward is superimposed on the ceiling surface of the box, and bolts are held from the holding hardware to the outer metal plate of the spring plate. An anchor fitting characterized in that both ends of the spring plate are widened by loosening the bolts by screwing into a metal plate at an outer position by passing through the metal plate.