JP2602190B2 - Sticking method of plate-like building materials - 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 sticking a plate-like building material.

[0002]

2. Description of the Related Art As a method of sticking a plate-like building material, for example, a plate-like stone material, a plurality of stone materials are arranged side by side and solidified by pouring a concrete in a fluid state on the back side thereof. Therefore, a method of integrating a plurality of stone materials and concrete has been used.

In this sticking method, since it is necessary to firmly support each stone, as shown in FIG.
The shear connector 104, the facade 106, and the like are made to protrude, and in this state, concrete is poured into the back side of the stone material 100 and solidified.

[0004] Here, as shown in the figure, the anchor bolt 102 is expanded by a screw-in of the bolt, and the expanding member 108 is opened.
110 formed in the back surface of the stone 100 by expanding
The expansion member 108 and the hole 11
0 is fixed to the stone 100 by a frictional force with the inner peripheral surface of the stone 1 and the stone 1
Each piece is provided only at one location in the center of the back surface.

[0005] Since the concrete material shrinks in the process of solidification after casting, if the anchor bolts 102 are provided at a plurality of locations, the contraction force of the concrete reaches the stone 100 via the anchor bolts 102 and the stone 1
Since 00 is broken, it can be provided only in one place in principle.

[0006] On the other hand, the shear connector 104,
Reference numeral 06 denotes auxiliary supporting means for preventing fragments from being scattered when the stone material 100 is broken.

However, in the case of this construction method, the stone 1
00, anchor bolt 102, shear connector 10
It is necessary to provide a large number of holes for 4 and the bevel 106 and to attach the anchor bolt 102, the shear connector 104, the bevel 106, etc. to each, which is very troublesome.

In order to firmly fix the anchor bolt 102 to the stone material 100, it is necessary to increase the contact area between the expanding member 108 and the inner peripheral surface of the hole 110.
Zero must be provided deeply. As a result, the stone 100 becomes thicker, which causes a problem of an increase in weight, accompanying difficulty in construction and an increase in cost.

On the other hand, as shown in FIG. 4, bolt holes 114 are formed in the four corners of the back surface of the tile 112, and bolts 116 are formed here.
While inserting a pin hole 118 from the end face of the tile 112.
And insert the pin 120 from here.
16 and the bolt 1
A method is known in which a concrete material is poured and solidified in a state in which the bolts 16 are retained and the bolts 116 protrude to the back side of the tile, thereby integrating the tile 112 with the concrete.

Here, the bolts 116 can be inserted and attached with some play to the bolt holes 114 of the tile 112 because the bolts 116 are retained by the pins 120.

By providing such play, it is possible to prevent the force when the concrete contracts from exerting on the tile 112.

However, in the case of this construction method, the tile 11
Due to the necessity of processing the pin hole 118 for the second 2, the following various problems have occurred.

The processing of the pin holes 118 is difficult, and if the processing is performed at the stage where the tiles 112 are green, the cracks of the tiles 112 are likely to occur. For this reason, the pin hole 118 is processed after the tile 112 is fired. In this case, it is necessary to use a carbide tool drill having a small diameter, and at that time, the drill is broken or worn out at an early stage. There is.

Further, the processing of the pin holes 118 requires a great deal of labor and time, which results in high tile construction costs.

Further, the processing of the pin hole 118 is performed by the pin hole 11.
8 must intersect the axis of the bolt hole 114 at right angles, so that not only must the position of the pin hole 118 be strictly selected, but also the pin hole 1
Even if the position of 18 can be selected accurately, if the direction is inclined during the drilling (this is often a win), the axes of the pin holes 118 and the bolt holes 114 are not aligned at the meeting portion. Would.

In this case, since the pin 120 cannot be inserted into the through hole 122 of the bolt 116, the pin hole must be formed again. In this case, since the pin holes 118 have already been formed, it is more difficult to perform the pin hole processing again.

In addition, in the case of this method, the tile 112
When the thickness of the pin hole 118 is small, not only is it difficult to perform the pin hole 118, but also the problem that the formation of the pin hole 118 lowers the tile strength is caused.

In addition, since the depth of the pin hole 118 is naturally limited, there is a problem that the position of the bolt hole 114 is correspondingly limited to a position near the end at the four corners of the tile.

[0019]

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and the gist of the present invention is to provide an anchor having a shape in which the tip side is partially or wholly spread on the back surface of a plate-like building material. While forming the hole, a cylindrical expanding member having a locking portion corresponding to the shape of the expanding portion of the anchor hole is inserted into the anchor hole, and the axial expanding member is forcibly applied to the expanding member. Due to the action of the cam surface formed on the outer peripheral surface of the expanding member and / or the inner peripheral surface of the expanding member by insertion, a predetermined gap is generated between the outer peripheral surface of the expanding member and the inner peripheral surface of the anchor hole. In this state, the expanding member is expanded to engage the locking portion with the expanding portion of the anchor hole, and by the engagement action of the engaging portion, the pushing member and the expanding member are separated from the plate-like building material. The anchor member connected directly or indirectly to the expanding member is prevented from coming off. It is to Chozuke applying a 該建 material by solidifying by pouring plate building material in a state of protruding from the back surface of the fluidized state in 該建 material backside concrete.

[0020]

As described above, according to the present invention, the expanding member is expanded by forcible insertion of the expanding member, so that a predetermined gap is formed between the outer peripheral surface of the expanding member and the inner peripheral surface of the anchor hole. Is fixed to the anchor member.

According to the present invention, the anchor member can be attached to the plate-like building material with some play while preventing the anchor member from coming off the plate-like building material.

Therefore, when concrete is poured and solidified in a state where such an anchor member is projected to the back side of the plate-like building material, a dimensional change occurring when the concrete contracts is caused by the displacement of the anchor member caused by the play. It is absorbed and the contraction force of the concrete is prevented from directly affecting the plate-like building material.

In the construction method of the present invention, it is possible to project a plurality of anchor members on the back surface of the plate-like building material and connect and integrate the concrete and the plate-like building material only with them.

That is, as in the above-described method of constructing a stone material, holes are drilled for many of the shear connectors 104 and the braces 106 in addition to the anchor bolts 102, and the anchor bolts 102, the shear connectors 104 and the braces 106 are attached. You don't have to.

In the present invention, the anchoring member is not fixed by the close contact force between the expanding member and the inner peripheral surface of the hole, but is fixed by locking the locking portion of the expanding member to the expanding portion of the anchor hole. Therefore, it is not necessary to make the depth of the anchor hole so large.

Accordingly, it is possible to reduce the thickness of the plate-like building material, thereby making the building material lighter and easier to construct, and the construction cost is reduced.

Further, unlike the tile construction method shown in FIG. 4, it is not necessary to insert a retaining pin from the end face of the tile, so that troublesome and difficult pin hole processing can be omitted.
In addition, the problem of a decrease in tile strength due to the pin hole processing can be solved.

Further, since there is no need to insert pins, there is an advantage that the anchor member can be attached to an arbitrary position without being limited to the four corners of the tile.

[0029]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; In FIG. 1, reference numeral 10 denotes a plate-like building material such as a large tile (for example, 30 cm square or more), and an anchor hole 12 is formed on the back surface side. A locked concave portion 14 having a diameter larger than that of the opening is formed at an end on the far side of the anchor hole 12.

Reference numeral 16 denotes an expanding member which is embedded and fixed in the anchor hole 12, has a cylindrical shape, and has a flange portion 18 at one end.

The main body of the expanding member 16 is provided with a slit 2
Each of the expanding pieces 22 is divided into a plurality of expanding pieces 22 by a zero, and an engaging portion 24 protruding in a direction perpendicular to the axis is provided at an end of each expanding piece 22.

The inner peripheral surface of the main body portion is tapered such that the inner diameter gradually decreases toward the locking portion 24 in a state (free state) before being attached to the anchor hole 12. A female screw 26 is formed on the tapered surface 25.

Numeral 28 denotes a bolt which also serves as a push-out member and an anchor member, and has a length protruding a predetermined amount from the back surface of the building material 10 when inserted into the anchor hole 12, and has a tapered portion 30 at its tip. It has been.

In this embodiment, the bolt 28 is attached to the expanding member 16 in a state where the expanding member 16 is inserted into the anchor hole 12 and the flange portion 18 is in contact with the back surface of the building material 10 via the ring-shaped elastic packing 32. When the screw is screwed in, the expanding member 16 is expanded by the action of the tapered surface 25, and the locking portion 24 at the distal end is locked in the locked concave portion 14 of the anchor hole 12.

The reason why the packing 32 is used here is to prevent the flowing concrete from entering the anchor holes 12 when the concrete is poured.

In the present embodiment, the expanding member 16 does not expand to the full extent even when the bolt 28 is fully screwed in by the action of the tapered portion 30 provided on the bolt 28, and the outer peripheral surface of the expanding member 16 A predetermined gap 37 is generated between the anchor hole 12 and the inner peripheral surface.

That is, as shown in FIG. 2, a bolt 36 having no such a tapered portion is used, and
6, the expansion member 16 can be expanded as much as possible by fully screwing it, and the outer peripheral surface and the inner peripheral surface of the anchor hole 12 can be brought into close contact.

In this embodiment, however, the bolt 28 has a tapered portion 3
By providing 0, when the bolt 28 is fully screwed in, play occurs between the expanding member 16 and the anchor hole 12.

As means for forming such play,
It is desirable to provide the taper portion on the bolt as described above, but other means such as forming the inner surface of the anchor hole 12 to some extent in advance or changing the shape of the expanding member 16 in the final mounting state, that is, until the bolt is fully filled The shape may be such that play occurs in the screwed state.

As described above, the expanding member 16 and the anchor hole 1
As a result, a predetermined gap 37 is formed between the bolt 2
8 can be displaced to some extent with respect to the building material 10 as shown by the arrow in FIG.

In this state, concrete is poured into the back side of the building material 10 and solidified, whereby the building material 10 and the concrete 34 are integrated via the bolt 28 as an anchor member, and the building material 10 is attached to the surface of the concrete 34. State.

When the concrete 34 is solidified,
Is contracted, the bolt 28 is displaced and absorbed in this example. Therefore, the contraction force of the concrete 34 does not directly affect the building material 10.

On the back of the building material 10, a resin layer (edge cutting material layer)
33 is formed, and when the concrete 34 shrinks, the concrete 34 can be relatively moved with respect to the building material 10.

As described above, in the method of the present embodiment, the bolt 28 as the anchor member is relatively displaceable, and the shrinkage of the concrete 34 is absorbed by using the displacement.

Therefore, according to this embodiment, it is possible to provide the building material 10 with a desired number of bolts 28 as an anchor material, and when the building material 10 is stuck on the surface of the concrete 34, the plurality of bolts 28 Can support weight.

Further, according to the present embodiment, there is no need to mount a pin for preventing the bolt 28 from being pulled out or to form a pin hole for inserting the pin, and the mounting of the bolt 28 becomes extremely easy.

Further, unlike the method of constructing stone materials shown in FIG. 3 described above, it is not necessary to attach a large number of shear connectors 104, facades 106 and the like, so that the number of steps for attaching them can be reduced.

The embodiment of the present invention has been described in detail above, but this is merely an example. For example, in the present invention, the shape of the anchor hole and the expanding member can be changed to another shape, and in the above example, the one in which the anchor member and the expanding member are integrated is used. It is also possible to adopt a separate structure.

Further, by tightening bolts, a plate shape, a rod shape,
It is also possible to fix a needle-shaped or other form of anchor member and to embed the anchor member in the concrete, and to use a striking force instead of inserting the pushing member into the spreading member by screwing. By striking the inside of the expanding member, it is also possible to expand the expanding member, and the present invention is in a form in which various changes are made based on the knowledge of those skilled in the art without departing from the gist of the present invention. It is feasible.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a method according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of advantages of the method.

FIG. 3 is an explanatory diagram for explaining the background of the present invention.

FIG. 4 is still another background explanatory view of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Plate-like building material 12 Anchor hole 14 Locked concave part 16 Expanding member 24 Locking part 25 Tapered surface 28 Bolt 34 Concrete 37 Gap

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasumasa Oka 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Prefecture Inax Corporation (72) Inventor Kazuma Kato 5-1-1 Koiehonmachi, Tokoname-city, Aichi Prefecture Formula company Inax

Claims (1)

(57) [Claims] An anchor hole is formed on the back surface of a plate-like building material in such a manner that the distal end part is partially or wholly expanded, and a cylindrical expansion member having a locking portion corresponding to the shape of the expanded portion of the anchor hole. An opening member is inserted into the anchor hole, and a cam surface formed on the outer peripheral surface of the expanding member and / or the inner peripheral surface of the expanding member by forcibly inserting the shaft-shaped expanding member into the expanding member. By operation, the expanding member is expanded in a state where a predetermined gap is formed between the outer peripheral surface of the expanding member and the inner peripheral surface of the anchor hole, and the locking portion is engaged with the expanding portion of the anchor hole. With the engaging action of them, the pushing-out member and the expanding member are prevented from being removed from the plate-like building material, and the anchor member directly or indirectly connected to the expanding member is moved from the back of the plate-like building material. Pour flowing concrete into the back side of the building material and solidify it A method for sticking a plate-like building material, the method comprising: