JP6951141B2 - Molded plate with finishing material - Google Patents

Description

The present invention relates to a molded plate with a finishing material in which a molding plate formed by casting and curing a cement-based material is integrally formed on the back surface of a panel-shaped finishing material such as a large tile.

In the above-mentioned molded plate with a finishing material, for example, as shown in Patent Document 1, concrete, which is an example of a cement-based material, is cast and integrated on the back surface side of a large tile, which is an example of a panel-shaped finishing material. Anchor members embedded in the molded plate are fastened and fixed in advance to each of a plurality of locations on the back surface of the large tile.
Anchor members are formed from a plate-shaped mounting portion that abuts on the back surface of a large tile, a pair of plate-shaped standing portions that extend at right angles from both ends of the mounting portion, and an upper and lower intermediate positions on the outer surface of the compatible installation portion. It is composed of a plate-shaped locking portion that protrudes at a right angle. A bolt insertion hole is formed at the center of the mounting portion.
The fastener is composed of bolts that are screwed into the bolt holes formed on the back surface of the large tile while being inserted into the bolt insertion holes of the anchor member.

Then, the large tiles are arranged in the formwork, and the anchor members are arranged at a plurality of places on the back surface of the large tiles. The bolts inserted into the bolt insertion holes of each anchor member are screwed into the bolt holes on the back surface of the large tile, and fixed to the large tile with an adhesive. As a result, each anchor member is fixed to the back surface of the large tile. After that, concrete is cast in the formwork and cured to manufacture a precast concrete plate as a molded plate in which large tiles are integrated on the surface side.

Japanese Unexamined Patent Publication No. 2005-139754

In the above-mentioned molded plate with finishing material, each of the anchor members arranged at a plurality of locations on the back surface of the large tile is fixed to the back surface of the large tile with bolts and adhesives, and is firmly fixed with concrete. .. In this fixed state, the head of the bolt and the outer surface of the mounting portion of the anchor member are integrated, and the back surface of the large tile and the mounting surface of the mounting portion of the anchor member are integrated in a completely fixed state. .. Therefore, the relative displacement between the large tile and the precast concrete plate due to the thermal expansion and contraction of the large tile and the drying shrinkage of the precast concrete plate could not be absorbed, and the large tile may be cracked. ..

In view of this situation, a main object of the present invention is to provide a molded plate with a finishing material capable of suppressing cracking of the finishing material due to displacement due to thermal expansion and contraction of the finishing material and drying shrinkage of the molded plate.

The first characteristic configuration according to the present invention is that a molded plate formed by casting and curing a cement-based material is integrally formed on the back surface of a panel-shaped finishing material, and the molding is performed at a plurality of locations on the back surface of the finishing material. The mounting portion of the anchor member embedded in the plate is a molded plate with a finishing material that is fastened and fixed by a fastener inserted into the insertion hole of the mounting portion.
A clearance is formed between the inner surface of the insertion hole of the anchor member and the outer surface of the fastener to absorb the displacement between the anchor member and the fastener, and the mounting portion of the anchor member and the fastener are provided. An elastic body for reducing friction that reduces the frictional resistance between the back surface side of the finishing material and the mounting portion of the anchor member due to the fastening force of the fastener is provided between the two.

According to the above configuration, due to the clearance formed between the inner surface of the insertion hole of the anchor member and the outer surface of the fastener, the anchor member is caused by thermal expansion and contraction of a finishing material such as a large tile and drying shrinkage of a molded plate. And the fastener can be absorbed.
Moreover, the friction-reducing elastic body provided between the mounting portion of the anchor member and the fastener reduces the surface pressure between the back surface side of the finishing material and the mounting surface of the anchor member due to the fastening force of the fastener. Can be lowered. Due to this decrease in surface pressure, the frictional resistance between the back surface side of the finishing material and the mounting surface of the anchor member can be reduced.
Therefore, by absorbing the displacement between the anchor member and the fastener and improving the sliding property between the finishing material and the anchor member by reducing the frictional resistance, the finishing material can be thermally expanded and contracted, and the molded plate can be dried and shrunk. It is possible to suppress the cracking of the finishing material caused by it.

The second characteristic configuration according to the present invention is that a base plate having a smaller sliding resistance than the back surface of the finishing material is arranged between the back surface of the finishing material and the mounting surface of the anchor member. be.

According to the above configuration, since the anchor member comes into contact with the base plate having a smaller sliding resistance than the back surface of the finishing material, the finishing material and the molded plate are brought into contact with each other due to thermal expansion and contraction of the finishing material and drying shrinkage of the molded plate. When a relative displacement occurs between the anchor members, the anchor member integrated with the molded plate side can be smoothly slid along the base plate.
In particular, even if the finishing material is a large tile, it is possible to prevent the movement of the anchor member from being hindered by the back foot of the large tile. Moreover, the anchor member can be properly installed regardless of the shape of the back foot of the large tile.

The third characteristic configuration according to the present invention is provided with an elastically displaceable insulating surrounding structure that surrounds the friction-reducing elastic body and the outer pressing portion of the fastener and cuts off contact with the cement-based material placed. It is in the point that it is.

According to the above configuration, the elastic body for reducing friction and the outer pressing portion of the fastener are surrounded by an insulating surrounding structure capable of elastic displacement, so that the cement-based material placed is the elastic body for reducing friction and the fastener. Does not come into contact with the outer pressing part of. Therefore, the outer pressing portion of the fastener is not immovably fixed by the molded plate. As a result, the displacement between the anchor member and the fastener and the displacement between the fastener and the molded plate can be appropriately absorbed.

The fourth characteristic configuration according to the present invention is that the insulating surrounding structure has an elastic body for reducing friction and the fastener at a height larger than the height from the mounting portion of the anchor member to the outer pressing portion of the fastener. The point is that it is composed of an elastic surrounding cylinder that surrounds the outer peripheral side of the outer pressing portion of the above, and an elastic sealing material that seals the opening of the elastic surrounding cylinder.

According to the above configuration, in constructing the insulating surrounding structure, the elastic surrounding cylinder is arranged in a state of surrounding the outer peripheral side of the friction reducing elastic body and the outer pressing portion of the fastener, and the elastic surrounding cylinder is provided. Since the opening is only sealed with an elastic sealing material, an insulating surrounding structure can be easily constructed.

The fifth characteristic configuration according to the present invention is that the elastic surrounding cylinder having the insulating surrounding structure is integrally formed with the friction reducing elastic body.

According to the above configuration, when the friction reducing elastic body is arranged between the outer pressing portion of the fastener and the attachment portion of the anchor member, the arrangement of the elastic surrounding cylinder of the insulating surrounding structure is completed. The displacement followability of the anchor member can be ensured with a simple structure.

The sixth characteristic configuration according to the present invention is that an insulating surrounding layer of an elastic sealing material that cuts off contact between the peripheral portion of the base plate and the cement-based material cast is formed around the base plate. At the point.

According to the above configuration, since the peripheral portion of the base plate is surrounded by the insulating surrounding layer of the elastic sealing material, the cast cement-based material does not come into contact with the peripheral portion of the base plate. Therefore, the peripheral portion of the base plate is not immovably fixed by the molded plate. As a result, the displacement between the base plate and the molded plate can be absorbed.

The seventh characteristic configuration according to the present invention is that the fastener is a blind rivet.

According to the above configuration, it is not necessary to take loose measures as in the case where the fastener is composed of bolts and nuts, and the fastening and fixing state of the finishing material and the anchor member can be maintained in the initial fixing state for a long period of time. ..

The eighth characteristic configuration according to the present invention is that the fastener is a screw that can be screwed into the back surface of the finishing material.

According to the above configuration, when the screw is screwed and fixed to the back surface of the finishing material, the bearing pressure outward in the radial direction is smaller than that of the blind rivet, and the screw is engaged in the screwed region. The anchor member can be fastened and fixed to the back surface of the finishing material while suppressing cracking of the finishing material.

Cross-sectional view of the tiled precast concrete plate of the first embodiment Enlarged sectional view of the anchor mounting part Enlarged plan view of the anchor mounting part Disassembled sectional view of the anchor mounting part Enlarged sectional view of the anchor mounting portion of the second embodiment Enlarged sectional view of the anchor mounting portion of the third embodiment Enlarged sectional view of the anchor mounting portion of the fourth embodiment An enlarged cross-sectional view of an anchor mounting portion showing a modified example of the fourth embodiment. Enlarged sectional view of the anchor mounting portion of the fifth embodiment

[First Embodiment]
FIG. 1 shows a tiled precast concrete plate (PCa plate) which is an example of a molded plate with a finishing material. This tiled PCa board is a precast concrete board (molded board) formed by casting and curing concrete, which is an example of a cement-based material, on the back surface 10 of a plurality of large tiles 1, which is an example of a panel-shaped finishing material. Example) 2 is integrally formed.
In this tiled PCa plate, a plurality of large tiles 1 are arranged in a mold (not shown), and a back surface treatment agent (for example, one-component elastic epoxy) that also serves as shatterproof is placed on the back surface 10 of the arranged large tiles 1. (Elastic adhesive such as resin) 3 is applied. In this state, after reinforcing bars are arranged in the formwork, concrete is cast and cured, and a precast concrete plate 2 in which a large tile 1 is integrated on the surface side is manufactured by a precast method.
Therefore, the large tile 1 and the precast concrete plate 2 are insulated by the back surface treatment agent 3 which is also applied to the back surface 10 of the large tile 1 to prevent scattering, and the displacement such as a temperature change is absorbed by the elastic back surface treatment agent 3. By doing so, it is possible to prevent the large tile 1 from being subjected to extra stress.

Further, anchor members 4 embedded in the precast concrete plate 2 are fastened and fixed to a plurality of anchor mounting portions on the back surface 10 of each large tile 1 with a blind rivet 5 which is an example of a fastener.
As shown in FIGS. 2 to 4, the anchor member 4 is formed by bending a metal plate material such as stainless steel into a hat shape. Specifically, the anchor member 4 is formed from a substantially square plate-shaped mounting portion 40 having a mounting surface 40a with respect to the back surface 10 side of the large tile 1 and a pair of opposite sides of the mounting portion 40 facing each other. A pair of plate-shaped upright portions 41 formed by bending at a right angle, and a plate-shaped locking portion 42 formed by bending at a right angle from the tip of the compatible installation portion 41 to the outside are provided.
As shown in FIGS. 2 to 4, the side length L1 along the anchor longitudinal direction and the side length L2 along the anchor width direction in the mounting portion 40 of the anchor member 4 are the back legs of the back surface 10 of the large tile 1. It is configured to be larger than one pitch P1 of the plurality of convex portions 11A constituting 11. In the present embodiment, each of the side lengths L1 and L2 of the mounting portion 40 is configured to be larger than the outer surface dimension P2 of the adjacent biconvex strips 11A of the large tile 1 as shown in FIG. Has been done. Therefore, when the anchor member 4 is attached to the large tile 1, both ends of the attachment portion 40 of the anchor member 4 in the longitudinal direction of the anchor are the outer surfaces of the adjacent biconvex portions 11A as shown in FIG. It is placed overhanging to the outside.

As shown in FIG. 4, a loose hole-shaped insertion hole 43 through which the sleeve 50 of the blind rivet 5 can be inserted is formed through the central portion of the attachment portion 40 of the anchor member 4. In the present embodiment, the inner diameter D1 of the insertion hole 43 is larger than the outer diameter D2 of the flange 51, which is the head of the blind rivet 5, and the blind rivet 5 is in contact with the flange 51. The outer diameter D3 of the circular metal (for example, stainless steel) washer 55 exteriored on the sleeve 50 is set to be smaller.
In short, between the inner peripheral surface 43a of the insertion hole 43 formed in the mounting portion 40 of the anchor member 4 and the outer peripheral surface of the sleeve 50 of the blind rivet 5, an annular clearance 62 that is uniform in the circumferential direction ( (See FIG. 2) is formed. As will be described later, this clearance 62 displaces the sleeve 50 of the blind rivet 5 and the mounting portion 40 of the anchor member 4 in the sliding direction due to thermal expansion and contraction of the large tile 1 and drying shrinkage of the precast concrete plate 2. It is set to a clearance dimension that can absorb.
As shown in FIG. 4, the inner diameter D4 of the through hole 55a of the washer 55 is slightly larger than the outer diameter D5 of the sleeve 50 of the blind rivet 5 and smaller than the outer diameter D2 of the flange 51 of the blind rivet 5. It is set. The flange 51 of the blind rivet 5 and the washer 55 come into contact with each other in a surface contact state from the longitudinal direction of the rivet.
The flange 51 and washer 55 of the blind rivet 5 described above function as an outer pressing portion 53 that presses the mounting portion 40 of the anchor member 4 toward the back surface 10 side of the large tile 1.

As the blind rivet 5, various shapes have been conventionally used, and any of them can be preferably used. As shown in FIGS. 2 and 4, the blind rivet 5 used in the present embodiment includes a sleeve 50 that can be inserted into the anchor hole 12 drilled in the anchor mounting portion of the back surface 10 of the large tile 1. A flange 51 integrally formed on the outer end side of the sleeve 50 in a flange shape, and a diameter-expanded portion 52A inserted into the sleeve 50 and the flange 51 and for expanding and deforming the sleeve 50 are formed at the tip. It is equipped with a mandrel 52.
A fragile portion 52B having a smaller diameter and a weaker tensile cutting strength than the other portions is formed at the root side portion of the enlarged diameter portion 52A in the mandrel 52.
The mandrel 52, the sleeve 50, and the flange 51 are made of a metal material such as an aluminum alloy, steel, or stainless steel.

To give an example of the above-mentioned method of attaching the blind rivet 5, the mandrel 52 of the blind rivet 5 is attached to a blind rivet fastening device (not shown), and the mandrel 52 is pulled in the axial direction. As a result, the enlarged diameter portion 52A of the mandrel 52 enters the sleeve 50, and the enlarged diameter portion 52A deforms the sleeve 50 in diameter. The outer peripheral surface of the sleeve 50 whose diameter has been expanded and deformed is pressed against the inner peripheral surface of the anchor hole 12 of the large tile 1. As a result, as shown in FIG. 2, the enlarged diameter deformed portion 50a of the sleeve 50 firmly retracted and fixed to the anchor hole 12 of the large tile 1 by the pressure contact force, and the outer pressing portion 53 of the blind rivet 5 are formed. With the flange 51 and the washer 55, the attachment portion 40 of the anchor member 4 can be fastened and fixed to the back surface 10 side of the large tile 1.
Then, when the tensile force associated with the pulling operation of the blind rivet fastening device exceeds the tensile cutting strength of the fragile portion 52B of the mandrel 52, the mandrel 52 is cut at the fragile portion 52B.

Then, in the above-mentioned tiled PCa plate, in the present invention, as shown in FIGS. 2 and 4, the back foot is between the back surface 10 of the large tile 1 and the attachment surface 40a of the attachment portion 40 of the anchor member 4. A base plate 6 having both smooth surfaces 6a and 6b having a sliding resistance smaller than that of the back surface 10 of the large tile 1 provided with 11 is arranged.
As shown in FIG. 3, the base plate 6 is made of a metal plate material such as stainless steel having a shape substantially similar to the contour shape of the mounting portion 40 of the anchor member 4. The side length L3 along the anchor longitudinal direction and the side length L4 along the anchor width direction in the base plate 6 are larger than one pitch P1 of the ridges 11A constituting the back foot 11 of the large tile 1. Moreover, the attachment portion 40 of the anchor member 4 is configured to be smaller than the side length L1 along the anchor longitudinal direction and the side length L2 along the anchor width direction.

Then, the mounting surface 40a of the mounting portion 40 of the anchor member 4 comes into contact with the smooth surface 6a on the outer side of the base plate 6 having a smaller sliding resistance than the back surface 10 of the large tile 1 provided with the back legs 11. Anchor integrated with the precast concrete plate 2 side when a relative displacement occurs between the large tile 1 and the precast concrete plate 2 due to thermal expansion and contraction of the large tile 1 and drying shrinkage of the precast concrete plate 2. The member 4 can be smoothly slid along the smooth surface 6a of the base plate 6.
In particular, it is possible to prevent the back foot 11 of the large tile 1 from hindering the movement of the anchor member 4. Moreover, the anchor member 4 can be properly installed regardless of the shape of the back foot 11 of the large tile 1.

Further, in the tiled PCa plate of the present invention, as shown in FIGS. 2 and 4, among the mounting portions 40 of the anchor member 4, the smooth surface 6a of the base plate 6 which is the back surface 10 side of the large tile 1 Between at least a part of the remaining portion excluding the mounting surface 40a that comes into contact with the outer pressing portion 53 of the blind rivet 5, the smooth surface 6a of the base plate 6 and the mounting surface 40a of the anchor member 4 due to the fastening force of the blind rivet 5. An elastic body 7 for reducing friction such as a rubber washer that reduces the frictional resistance between the two is provided.
In the present embodiment, the friction-reducing elastic body 7 is formed in a cylindrical shape having a second insertion hole 7a into which the sleeve 50 of the blind rivet 5 is inserted, and is formed with an outer surface 40b of the mounting portion 40 of the anchor member 4. It is arranged between the blind rivet 5 and the washer 55 constituting the outer pressing portion 53.
Further, in the present embodiment, the friction reducing elastic body 7 is integrally formed with the elastic surrounding cylinder 81 of the insulating surrounding structure 8 described later, and is also integrally formed with the elastic tubular body 70 described later. Therefore, as shown in FIGS. 2 and 4, the friction reducing elastic body 7 is surrounded by a boundary line (broken line a) with the elastic surrounding tubular body 81 and a boundary line (broken line b) with the elastic tubular body 70. It is formed in the area.

Then, the back surface of the large tile 1 due to the fastening force of the blind rivet 5 is provided by the friction reducing elastic body 7 provided between the outer surface 40b of the mounting portion 40 of the anchor member 4 and the outer pressing portion 53 of the blind rivet 5. The surface pressure between the smooth surface 6a of the base plate 6 on the 10 side and the mounting surface 40a of the anchor member 4 can be reduced. Due to this decrease in surface pressure, the frictional resistance between the smooth surface 6a of the base plate 6 and the mounting surface 40a of the anchor member 4 can be reduced.
Moreover, since the elastic body 7 for reducing friction does not exist on the mounting surface 40a side of the anchor member 4, the smooth surface 6a of the base plate 6 on the back surface 10 side of the large tile 1 and the mounting surface 40a of the anchor member 4 The sliding range of can be set appropriately.
As a result, the relative displacement between the large tile 1 and the precast concrete plate 2 due to the thermal expansion and contraction of the large tile 1 and the drying shrinkage of the precast concrete plate 2 can be appropriately absorbed, and the large tile 1 can be appropriately absorbed. It is possible to suppress cracking and the like.

Further, in the tiled PCa plate of the present invention, as shown in FIGS. 2 to 4, contact with the concrete placed surrounding the elastic body 7 for reducing friction and the outer pressing portion 53 of the blind rivet 5 An insulating surrounding structure 8 that can be elastically displaced is provided.
The insulating surrounding structure 8 has an elastic body 7 made of rubber that surrounds the outer peripheral side of the outer pressing portion 53 of the friction reducing elastic body 7 and the blind rivet 5, and an elastic body 81 that seals the opening of the elastic surrounding body 81. It is composed of a sealing material (including an amorphous elastic water blocking material) 82. Among them, the elastic surrounding cylinder 81 has a cylindrical shape having a height larger than the height from the outer surface 40b of the mounting portion 40 of the anchor member 4 to the outer surface top of the flange 51 constituting the outer pressing portion 53 of the blind rivet 5. It is composed of insulating rubber.
Further, as the elastic sealing material 82, those having various compositions have been conventionally available, and a suitable one can be selected and used from among them. In this embodiment, a modified silicone-based sealing material having heat resistance, weather resistance, and flexibility is used.

As described above, since the outer pressing portion 53 of the friction reducing elastic body 7 and the blind rivet 5 is surrounded by the elastically displaceable insulating surrounding structure 8, the placed concrete is surrounded by the friction reducing elastic body 7 and the friction reducing elastic body 7. It does not come into contact with the outer pressing portion 53 of the blind rivet 5. Therefore, the outer pressing portion 53 of the blind rivet 5 is not immovably fixed by the precast concrete plate 2. As a result, the displacement between the anchor member 4 and the blind rivet 5 and the displacement between the blind rivet 5 and the precast concrete plate 2 can be appropriately absorbed.

As shown in FIG. 4, the elastic surrounding cylinder 81 of the insulating surrounding structure 8 is integrally formed with the friction reducing elastic body 7, and the outer surface 7b of the friction reducing elastic body 7 and the inner circumference of the elastic surrounding cylinder 81 are formed. The surface 81a forms a filling recess 83 into which the flange 51 of the blind rivet 5 and the washer 55 enter.
Therefore, by filling the filling recess 83 with the elastic sealing material 82 up to the opening position thereof, the flange 51 and the washer 55 constituting the outer pressing portion 53 of the blind rivet 5 can be sealed with the elastic sealing material 82. can.

Further, as shown in FIGS. 2 and 4, the friction reducing elastic body 7 has an inner peripheral surface 43a of the insertion hole 43 formed in the mounting portion 40 of the anchor member 4 and an outer circumference of the sleeve 50 of the blind rivet 5. A cylindrical elastic tubular body 70 for displacement absorption, which is fitted and mounted in close contact with the annular clearance 62 between the surfaces, is integrally formed. Due to the elastic deformation of the elastic tubular body 70, the relative movement of the sleeve 50 of the blind rivet 5 and the attachment portion 40 of the anchor member 4 in the sliding direction is allowed.
With the above configuration, the elastic tubular body 70 is in the sliding direction between the sleeve 50 of the blind rivet 5 and the attachment portion 40 of the anchor member 4 due to thermal expansion and contraction of the large tile 1 and drying shrinkage of the precast concrete plate 2. Can absorb the displacement of. Moreover, it has a centering function of aligning the shaft core of the sleeve 50 of the blind rivet 5 with the center of the insertion hole 43 of the mounting portion 40 of the anchor member 4.

In the tiled PCa plate of the present invention, as shown in FIGS. 2 to 4, the outer peripheral end surface 6c which is an example of the peripheral edge portion of the base plate 6, the mounting surface 40a of the anchor member 4, and the back surface of the large tile 1 An annular recess 60 that opens outward over the entire circumference is formed between the back surface treatment agent 3 that is also used for preventing scattering and that is applied to 10. An insulating surrounding layer 9 of an elastic sealing material is formed in a state of filling the annular recess 60. The insulating surrounding layer 9 can cut off the contact between the cast concrete and the outer peripheral end surface 6c of the base plate 6. Therefore, the outer peripheral end surface 6c of the base plate 6 is not immobilized and fixed by the precast concrete plate 2. As a result, the displacement between the base plate 6 and the precast concrete plate 2 can be absorbed.

The anchor hole 12 of the large tile 1 is filled with the epoxy adhesive 65. As a result, it is possible to avoid the destruction of the fixed portion of the blind rivet 5 due to the vaporization and freezing of the water content in the anchor hole 12.

[Second Embodiment]
FIG. 5 shows another embodiment of the tiled PCa plate. In the present embodiment, the elastic body 7 for reducing friction, the elastic surrounding cylinder 81 of the insulating surrounding structure 8, and the elastic tubular body 70 are each composed of separate members.
The elastic tubular body 70 is formed in the annular clearance 62 between the inner peripheral surface 43a of the insertion hole 43 formed in the mounting portion 40 of the anchor member 4 and the outer peripheral surface of the sleeve 50 of the blind rivet 5. A rubber washer or an O-ring (for example, nitrile rubber) 71 is fitted and mounted in close contact with each other.
In the present embodiment, since the elastic body 7 for reducing friction and the elastic tubular body 70 are separately configured, the hardness of the rubber can be changed and optimized according to the respective roles.
Since the other configurations are the same as the configurations described in the first embodiment, the same numbers as those in the first embodiment are added to the same configuration parts, and the description thereof will be omitted.

[Third Embodiment]
FIG. 6 shows another embodiment of the tiled PCa plate. In the present embodiment, similarly to the first embodiment described above, the friction reducing elastic body 7 and the elastic surrounding cylinder 81 of the insulating surrounding structure 8 are integrally formed, but the friction reducing elastic body 7 and the elastic cylinder are integrally formed. It is configured separately from the body 70. That is, as in the second embodiment described above, the annular clearance between the inner peripheral surface 43a of the insertion hole 43 formed in the mounting portion 40 of the anchor member 4 and the outer peripheral surface of the sleeve 50 of the blind rivet 5. Similar to the second embodiment, a rubber washer as an elastic tubular body 70 or a rubber O-ring 71 is fitted and mounted in the 62 in a close contact state.
The broken line a in FIG. 6 indicates a boundary line between the elastic surrounding cylinder 81 and the friction reducing elastic body 7.
Since the other configurations are the same as the configurations described in the first embodiment, the same numbers as those in the first embodiment are added to the same configuration parts, and the description thereof will be omitted.

[Fourth Embodiment]
FIG. 7 shows another embodiment of the tiled PCa plate. In this embodiment, the elastic body 7 for reducing friction, the elastic surrounding cylinder 81 of the insulating surrounding structure 8, and the elastic tubular body 70 are each composed of separate members. Further, a circular metal (for example, stainless steel) washer 90 that is exteriorized by the sleeve 50 of the blind rivet 5 between the elastic body 7 for reducing friction and the outer surface 40b of the mounting portion 40 of the anchor member 4 Is placed.
The sliding property of the anchor member 4 can be enhanced by the metal washer 90 arranged between the elastic body 7 for reducing friction and the outer surface 40b of the mounting portion 40 of the anchor member 4.

Further, between the flange 51 of the blind rivet 5 and the washer 90, friction reduction that reduces the frictional resistance between the smooth surface 6a of the base plate 6 and the mounting surface 40a of the anchor member 4 due to the fastening force of the blind rivet 5 is reduced. An elastic body 7 is provided. Therefore, in the present embodiment, the outer pressing portion 53 is configured with only the flange 51 of the blind rivet 5.

Similar to the second embodiment, the annular clearance 62 between the inner peripheral surface 43a of the insertion hole 43 formed in the mounting portion 40 of the anchor member 4 and the outer peripheral surface of the sleeve 50 of the blind rivet 5 is formed. , A rubber washer as an elastic cylindrical body 70 or a rubber O-ring 71 is fitted and mounted in a close contact state.

Elasticity that cuts off contact with the cast concrete at the annular inner corner formed by the outer peripheral surface of the elastic surrounding cylinder 81 of the insulating surrounding structure 8 and the outer surface 40b of the mounting portion 40 of the anchor member 4. An insulating surrounding layer 91 of the sealing material is formed.
Since the other configurations are the same as the configurations described in the first embodiment, the same numbers as those in the first embodiment are added to the same configuration parts, and the description thereof will be omitted.

FIG. 8 shows a modified example of the above-described fourth embodiment. In this modification, a circular metal (for example, stainless steel) washer 92 is arranged between the flange 51 of the blind rivet 5 and the elastic body 7 for reducing friction. The arrangement of the washer 92 makes it easier to hit the blind rivet 5 vertically.

[Fifth Embodiment]
FIG. 9 shows another embodiment of the tiled PCa plate. In this other embodiment, instead of the blind rivet 5 used in the first to fourth embodiments described above, a screw 95, which is another example of the fastener, is used. As the screw 95, there are various materials and forms, and an appropriate screw can be freely selected from among them. In this embodiment, an austenitic stainless steel tapping screw 95 having chloride corrosion resistance and stress corrosion cracking resistance is used.
A pilot hole 96 is formed in a plurality of anchor attachment portions on the back surface 10 of the large tile 1 to form a female thread as the tapping screw 95 is screwed. The anchor member 4 embedded in the precast concrete plate 2 is fastened and fixed to the back surface 10 of the large tile 1 by a tapping screw 95 screwed into the pilot hole 96 on the back surface 10 side of the large tile 1.
Since the tappin screw 95 is screwed into the pilot hole 96 which has not been internally threaded while plastically forming the female thread with the thread of the screw itself, the bearing pressure outward in the radial direction is smaller than that of the blind rivet 5. .. Therefore, the anchor member 4 can be fastened and fixed to the back surface 10 of the large tile 1 without loosening while suppressing the cracking of the large tile 1.
In this embodiment, the screw holes 96 of the large tile 1 are filled with an adhesive, or the screws 95 with the adhesive are used.

Further, in the present embodiment, the elastic body 7 for reducing friction, the elastic surrounding cylinder 81 of the insulating surrounding structure 8 and the elastic tubular body 70 are each composed of separate members. Further, the elastic body 7 for reducing friction is an outer surface of the screw shaft 95A of the screw 95 in order to reduce the frictional resistance between the smooth surface 6a of the base plate 6 and the mounting surface 40a of the anchor member 4 due to the fastening force of the screw 95. And the inner peripheral surface of the elastic surrounding cylinder 81, they are arranged in contact with the outer surface 40b of the mounting portion 40 of the anchor member 4.

Further, between the head portion 95B of the screw 95 and the friction-reducing elastic body 7, an annular metal washer 97 (for example, made of stainless steel) that is exteriorized by the screw shaft 95A of the screw 95 is arranged. There is. The outer pressing portion 53 is formed by the washer 97 and the head portion 95B of the screw 95.

Similar to the seventh embodiment, the annular clearance 62 between the inner peripheral surface 43a of the insertion hole 43 formed in the mounting portion 40 of the anchor member 4 and the outer peripheral surface of the screw shaft 95A of the screw 95 is formed. , A rubber washer as an elastic cylindrical body 70 or a rubber O-ring 71 is fitted and mounted in a close contact state.
Since the other configurations are the same as the configurations described in the first embodiment, the same numbers as those in the first embodiment are added to the same configuration parts, and the description thereof will be omitted.

Further, in the above-mentioned fifth embodiment, the tapping screw 95 is used, but the present invention is not limited to this configuration. For example, a female thread is formed by tapping on the inner peripheral surface of the prepared hole 96 formed on the back surface 10 of the large tile 1, and a normal screw 95 is screwed into the screw hole provided with the female thread. The anchor member 4 may be fastened and fixed to the back surface 10 of the large tile 1.
Further, in the above-mentioned fifth embodiment using the screw 95, which is another example of the fastener, if the torque of the screw 95 can be adjusted, the friction reducing elastic body 7 can be omitted. be.

[Other Embodiments]
(1) In each of the above-described embodiments, the blind rivet 5 is used as a fastener for fastening and fixing the mounting portion 40 of the anchor member 4 to the back surface 10 of the large tile 1, but the present invention is not limited to this, for example. , Anchor bolts / nuts, anchor nuts / bolts, etc. may be used as fasteners.

(2) In each of the above-described embodiments, the anchor member 4 formed by bending into a hat shape is used, but the anchor member 4 can be changed to any suitable form. For example, the anchor member 4 may be formed in a loop shape. Further, the loop-shaped anchor member 4 may be composed of a plurality of parts.

(3) In each of the above-described embodiments, the large tile 1 is exemplified as the panel-shaped finishing material, but it is a building wall finishing material such as a stone plate, an ALC plate, a siliceous plate, an asbestos cement plate, and a gypsum board. May be good.

(4) In each of the above-described embodiments, as the molded plate formed on the back surface 10 of the large tile 1, the precast concrete plate 2 formed by concrete casting curing is exemplified, but the bubble concrete plate (ALC plate) And so on.

(5) In each of the above-described embodiments, the back surface 10 of the large tile 1 and the attachment surface 40a of the attachment portion 40 of the anchor member 4 slide more than the back surface 10 of the large tile 1 provided with the back legs 11. Although the base plate 6 provided with both smooth surfaces 6a and 6b having low resistance is arranged, the base plate 6 may be implemented in a form in which the base plate 6 does not exist.

1 Finishing material (large tile)
2 Molded board (precast concrete board)
4 Anchor member 5 Fastener (blind rivet)
6 Base plate 7 Elastic body for friction reduction 7a Insertion hole (second insertion hole)
8 Insulated surrounding structure 9 Insulated surrounding layer 10 Back side 40 Mounting part 40a Mounting surface 53 Outer pressing part 62 Clearance 81 Elastic surrounding cylinder body 82 Elastic sealing material

Claims (8)

A molded plate formed by casting and curing a cement-based material is integrally formed on the back surface of the panel-shaped finishing material, and anchor members embedded in the molded plate are attached to a plurality of locations on the back surface of the finishing material. The part is a molded plate with a finishing material that is fastened and fixed by a fastener inserted into the insertion hole of the mounting part.
A clearance is formed between the inner surface of the insertion hole of the anchor member and the outer surface of the fastener to absorb the displacement between the anchor member and the fastener, and the mounting portion of the anchor member and the fastener are provided. Molding with a finishing material provided with an elastic body for reducing friction that reduces the frictional resistance between the back surface side of the finishing material and the mounting portion of the anchor member due to the fastening force of the fastener. Board. The molded plate with a finishing material according to claim 1, wherein a base plate having a sliding resistance smaller than that of the back surface of the finishing material is disposed between the back surface of the finishing material and the mounting portion of the anchor member. The first or second claim, wherein the elastic body for reducing friction and the insulating surrounding structure that can be elastically displaced to cut off the contact with the cement-based material placed around the outer pressing portion of the fastener are provided. Molded plate with finishing material. The insulating surrounding structure surrounds the friction-reducing elastic body and the outer peripheral side of the outer pressing portion of the fastener at a height larger than the height from the mounting portion of the anchor member to the outer pressing portion of the fastener. The molded plate with a finishing material according to claim 3, which is composed of an elastic surrounding cylinder and an elastic sealing material that seals an opening of the elastic surrounding cylinder. The molded plate with a finishing material according to claim 4, wherein the elastic surrounding cylinder having the insulating surrounding structure is integrally formed with the friction reducing elastic body. The molded plate with a finishing material according to claim 2, wherein an insulating surrounding layer of an elastic sealing material that cuts off contact between the peripheral portion of the base plate and the cement-based material that has been cast is formed around the base plate. .. The molded plate with a finishing material according to any one of claims 1 to 6, wherein the fastener is a blind rivet. The molded plate with a finishing material according to any one of claims 1 to 6, wherein the fastener is a screw that can be screwed into the back surface of the finishing material.

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