JP2995149B2 - Adhesive fixing method for exterior materials such as tiles using anchor members - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor member fixedly used in a buried state of a concrete structure or the like.
In particular, the present invention relates to a method for bonding and fixing an exterior object such as a tile using an anchor member, which is suitable for repairing a wall surface for preventing a fall of an exterior material such as a tile.

[0002]

2. Description of the Related Art In consideration of a situation in which an exterior material such as a tile is dropped due to mortar peeling or cracks in the interior, in recent years, a wall repair method for fixing the exterior material directly to a concrete foundation with an anchor member has been implemented. An anchor member suitable for such repair is, for example, one disclosed in Japanese Patent Application Laid-Open No. 4-128473 by the present applicant.

[0003] This is provided with a cylindrical anchor body having a flange portion extending outward at a rear end, and a pin is held in a state where the flange portion is locked in a large-diameter hole opening formed in an exterior material. The tip is expanded and fixed, and then a sealing material such as epoxy resin is injected from the rear end of the anchor body to spread inside and outside the anchor. Finally, the opening of the hole is filled with resin or sealed. This is a construction method in which a stop member is applied and fixed with an adhesive to make the color substantially the same as the surface of the exterior material.

[0004]

By the way, in the case of such a repairing method, a return pressure of the sealing material is generated, and even if the opening is sealed immediately after injection, the sealing material may be damaged or pushed back by the return pressure. The repair method must be performed only after solidification of the sealing material, which requires 1 to 2 hours, and in some cases, tens of hours, which is a significant factor in reducing work efficiency.

[0005] In addition, since sealing cannot be performed immediately after injection, there is another problem that it is necessary to prevent the soaking from the so-called opening until solidification.

[0006] For example, a mechanically locked state can be obtained by using a cap member which can be pushed into and engaged with the rear end of the anchor main body, whereby the sealing work immediately after injection can be performed. it can. However, in this case, it is necessary to form the opening with high precision in order to obtain a flush state between the surface of the cap member and the surface of the exterior material. On the other hand, when the material of the exterior member is relatively soft, the flange portion of the anchor main body slightly sinks due to the driving force of the pin, and the depth of the opening changes. Therefore, when it protrudes, the external appearance is inferior, and when it is buried, it takes time and effort for the sealing work twice, so that it is impossible to respond practically.

[0007] Also, holes drilled in concrete etc.
It is desirable to be drilled straight, that is, perpendicular to the surface of the exterior material, but in practice it is often inclined,
In this case, there is a problem that it is extremely difficult to obtain a flush state between the surface of the cap member and the surface of the exterior material.

Therefore, according to the present invention, the sealing of the opening of the anchor hole can be completed in one step immediately after the injection of the sealing material, and at the same time, it can be flush with the surface of the exterior material. It is an object of the present invention to provide a method for bonding and fixing an exterior object such as a tile, which can achieve the above.

The present invention has been devised to achieve the above object, and is characterized by forming a hole extending from the surface side of an exterior material such as a tile on the surface of a concrete structure or the like to the concrete structure or the like. Then, a substantially pipe-shaped anchor body is inserted into the hole, and then the anchor is fixed to the concrete structure or the like at the rear end position, and a tile or the like is pressed into the exterior material from the surface side with the adhesive through the hole. In the method of bonding and fixing the exterior material, the closing member having a flange portion having a width to close the opening of the hole on the surface of the exterior material and having a columnar plug portion having a diameter smaller than the inner diameter of the anchor body, A columnar member is inserted into the anchor body and the flange is engaged in a manner to close the opening of the hole,
Thus, leakage of the press-fitted adhesive from the opening of the hole is prevented, and the surface side of the flange portion can be made substantially the same plane and substantially the same color as the surface side of the exterior material.

[0010]

1 to 3 show an embodiment of the present invention. As shown in FIG. 2, the anchor member 2 has a substantially tubular or pipe-shaped anchor body 4, a female screw portion 6 formed at a rear end portion of the anchor body 4, and a screw engagement with the female screw portion 6. And a pin 10 for moving the inside of the anchor main body 4 in the axial direction to expand the distal end portion 12. The anchor body 4 is preferably made of stainless steel.

The distal end portion 12 of the anchor body 4 is provided with axially extending slits 14 on both sides, and a reduced diameter portion formed by drawing or other means within the length of the slit 14. 16 are formed at intervals in the axial direction, and a substantially C-shaped locking member 18 is engaged with each reduced diameter portion 16 so as not to fall off. Also,
The pin 10 is prevented from falling off by inwardly protruding portions 20 formed by a punch or the like in order to achieve an integrated flow with the anchor body 4. Further, a flange portion 22 is formed at the rear end of the anchor body 4 and extends outward in a substantially radial direction. The outer diameter of the pin 10 is set larger than the inner diameter of the reduced diameter portion 16.

The closing member 8 has a cylindrical hole 4 of the anchor body 4.
a, a male screw portion 26 screwed into the female screw portion 6, and a flange portion 28. The surface 28a of the flange portion 28 has an operation for turning from outside. Groove 30 is formed. Flange part 28
Has an area that covers the large-diameter opening 40 of the communication hole 38. The plug 24 also has a function as a guide for facilitating the screwing of the male screw 26.

Next, the operation of using the anchor member 2 will be described with reference to wall repair. As shown in FIG. 3, the peeled portions P ₁ , P ₂
Porcelain tile 3 as an exterior material in a wall structure
A communication hole 38 extending from 2 to the mortar layer 34 and the concrete foundation 36 is formed, and a large-diameter opening 40 is continuously provided at the rear end of the communication hole 38.

When the anchor body 4 is inserted into the communication hole 38, the flange portion 22 comes into contact with the bottom surface 40a of the opening portion 40, and further insertion is restricted. When the pin 10 is driven from the rear end of the anchor body 4 in such a positioning state, the distal end portion 12 is expanded by the movement of the pin 10, and a state in which each locking member 18 bites into the side surface of the communication hole 38 is obtained. In this example, since the locking members 18 are set at three places at intervals in the axial direction, even if one locking member 18 corresponds to a soft part having a low aggregate distribution density, other locking members 18 may be used. Since the locking force due to the biting by the member 18 is obtained, a stable locking force with high reliability as a whole is obtained.

Further, by providing the flange portion 22 as in this example, the positioning of the anchor main body 4 with respect to the communication hole 38 can be easily obtained, and the operation of driving the pin 10 alone can be performed. It is advantageous that the porcelain tile 32, the mortar layer 34 and the concrete foundation 36 can be simultaneously joined together at the same time. In order to make use of the positioning function of the flange portion 22, the communication hole 38 is set to a depth such that the gap portion 42 exists on the distal end side when the anchor body 4 is fixed.

After the anchor body 4 is fixed, as shown in FIG. 1, a sealing material 44 of, for example, epoxy resin is injected and filled from the rear end of the anchor body 4. The sealing material 44 injected into the cylinder flows out of the cylinder through the gap and the like formed by the slits 14 to the outside of the cylinder.
Then, the air flows backward while excluding the air of _{No. 2} and reaches the separation portions P ₁ and P ₂ .

Next, immediately after the filling of the sealing material 44 is completed, the closing member 8 is screwed into the female screw portion 6 of the anchor body 4. In the case of this example, the closing member 8 is rotated by an operating tool such as a driver. The so-called mechanical sealing structure is completed when the closing member 8 starts to be screwed, whereby the influence of the return pressure of the sealing material 44 is cut off, and the rear end of the anchor body 4 is sealed in a watertight state. Further, the screwing amount of the closing member 8 is adjusted so that the surface 28a of the flange portion 28 coincides with the surface 32a of the porcelain tile 32, that is, so as to be flush with the surface 32a.

Therefore, the opening 40 can be sealed immediately after filling regardless of the conditions such as the quick-drying property of the sealing material 44, so that the working efficiency can be improved and the adjustment can be made to be in a flush state. Therefore, poor appearance can be avoided. Even if the bottom surface 40a of the opening 40 is buried by the driving force of the pin 10, the flush adjustment can be performed without any influence. The depth d of the opening 40 is set to be larger than the total dimension of the thickness of the flange 22 and the thickness of the flange 28 in order to exert the above-described adjustment function by the axial movement of the flange 28.

In this example, at least the flange 2
8 is baked and painted with substantially the same color as the surface 32a of the porcelain tile 32, whereby the inferior appearance of the repaired appearance is minimized.

Further, the operation groove 30 is set to a minimum size that can be rotated. Even if the operation groove 30 is left after the repair, it has almost no adverse effect on the external appearance due to its area ratio. Finishing treatment can also be performed by rubbing a resin or the like. Note that all members of the anchor member 2 in this example are formed of stainless steel from the viewpoint of extending the life.

Further, since the closing member 8 is screwed while pushing back the sealing member 44, the closing member 8 is screwed by solidification of the sealing member 44 which has entered the gap of the screw or by adhesion between the plug portion 24 and the sealing member 44. Looseness is prevented. In addition, if the plug portion 24 is formed with a concave portion or a convex portion that does not rotate around the axis, the loosening prevention function can be further improved.

Next, FIGS. 4 to 6 show a driving-type flush adjusting type, in contrast to the flush adjusting type described above. Note that the same parts as those in the above-described example are denoted by the same reference numerals, and redundant description other than the feature points is omitted.

The anchor member 50 is, as shown in FIG.
An anchor main body 52 having a flange 22 at the rear end and containing the pin 10 is provided, and a closing member 54 that is pressed into the rear end of the anchor main body 52 with a hammer or the like.

The closing member 54 has a flange portion 56 having a width for closing the opening 40, a columnar plug portion 58 having a diameter smaller than the inner diameter t of the anchor body 52, and a radially opposed position of the columnar plug portion 58. Arbitrary posture holding projections 60 formed respectively,
60, and the arbitrary-position holding projections 60, 6
The outer diameter dimension s of 0 is set slightly larger than the inner diameter t of the anchor main body 52. In addition, the arbitrary posture holding projection 6
Although 0 and 60 can be formed integrally with the columnar plug portion 58, in this example, the concave portions formed in the columnar plug portion 58 are brazed as separate members. Also, an arbitrary posture holding projection 6
0, 60 has a curved convex surface so that press-fitting can be performed smoothly.

As shown in FIG. 5, when the communication hole 38 is formed obliquely with an elevation angle of θ with respect to the vertical line L ₁ to the surface 32 a of the porcelain tile 32, that is, when the axis is shifted, the anchor body is displaced. 52 will be locked along the axis L ₂ of the communication hole 38. After the anchor body 52 is locked, the sealing material 44 is filled (omitted in FIG. 5), and then the closing member 54 is inserted from the rear end of the anchor body 52.
There are implanted along the axis L _2. Since the outer diameter between the arbitrary posture holding projections 60, 60 is larger than the inner diameter t of the anchor main body 52, immediately after the arbitrary posture holding projections 60, 60 are pressed into the anchor main body 52, the closing member 54 is fixed to the anchor. A state in which positioning (retaining) is obtained at any position with respect to the main body 52 is obtained.

When the flange 56 reaches the vicinity of the opening 40, the deviation from the surface 32a of the porcelain tile 32 becomes clear. As shown in FIG. 6, the further driven, with the driving force acts on the upper side of the flange portion 56, as a result, the axis L ₃ of an arbitrary posture holding projection 60, 60 is displaced in the direction of the arrow, which closure member 54 matches the axial center to the vertical line L ₁ with the flange portion 56 and porcelain tiles 32
Is flush with the surface 32a.

In this example, a case where the communication hole 38 is inclined in the up-down direction has been described. However, a case where the communication hole 38 is inclined in the horizontal direction can be similarly handled. That is, as shown in FIG. 7, even if the press-fitted closing member 54 is press-fitted in the same posture as in the above example (the arbitrary posture holding protrusions 60, 60 are positioned vertically), the arbitrary posture holding protrusion may be used. Since the horizontal plane can be rotated around the axis 60, 60, the closing member 54 has its axis corrected by driving, and a flush state can be obtained.

The color of the surface 32a of the porcelain tile 32 and the color of the flange portion 56 can be made the same, for example, by coating the flange portion 56 with a ceramic paint having substantially the same color as the surface 32a.
Alternatively, it can be performed by applying a ceramic paint or a fluororesin after applying a substantially same color print seal. Further, as the material of the closing member 54, a hard resin such as metal or polyacetal can be used.

Next, FIGS. 8 and 9 show modified examples of the closing member.

The closing member 62 shown in this example includes a flange 64, a columnar plug 66 having a diameter smaller than the inner diameter t of the anchor main body 52, and an annular arbitrary-position holding projection 68 formed on the columnar plug 66. The outer peripheral surface of the arbitrary-position holding projection 68 is knurled.

In the case of this annular type, there is no need to adjust the position of the arbitrary-position holding projection 68 to the inclination of the communication hole 38 as compared with the above-described example, and there is an advantage that it can cope with all directions.
In addition, the air bleeding during the press-fitting and the movement of the sealing material 44 are ensured by the knurled groove.

In each of the above examples, each component is shown in a specific shape. However, the present invention is not limited to this, and the components are appropriately designed as long as the above-mentioned sealing material sealing function and flush adjustment function can be obtained. It can be changed or the material can be changed.
Further, not only sealing of a sealing material, but also application to a sealing structure of slurry or the like is possible.

In each of the above examples, the depth of the opening 40 must be at least a certain value in order to effectively obtain the adjusting function of the closing member 8 and the like. Can be simply processed with a mortar or the like. This example is shown in FIG. 10 and FIG.

As shown in FIG. 10, the closing member 70 is provided with a male screw 72 which is screwed into the female screw 6 of the anchor body 14.
And a contact portion 74 that comes into close contact with the curved convex portion 22a at the boundary between the flange portion 22 of the anchor main body 14 and the straight portion and is flush with the outer surface of the flange portion 22. After the sealing member 44 is injected, the closing member 70 is rotated and screwed in, as shown in FIG.
Closely fits the curved convex portion 22a of the flange portion 22 to form a mechanically sealed configuration of the sealing material.

The small space of the opening 40 is
6 and so on. In the case of this method, the adjusting function cannot be obtained, but there is an advantage that the depth of the opening 40 can be reduced. Although the screw-in method has been exemplified, the same can be applied to the above-described driving method.

[0036]

According to the present invention, since the rear end of the anchor body can be sealed immediately after filling without the solidification time of the sealing material, the working efficiency can be improved, and the opening can be reliably formed. Since the surface can be closed evenly, it is possible to avoid poor appearance of the appearance in the repair of the wall surface, and further, it is possible to avoid a difference in color of the surface after closing the opening, and thus to avoid poor appearance.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a use state showing an embodiment of an anchor member according to the present invention.

FIG. 2 is an exploded perspective view of a partially cutout of the anchor member.

FIG. 3 is a longitudinal sectional view showing a fixed state of an anchor body before injection of a sealing material.

FIG. 4 is an exploded perspective view showing a second embodiment.

FIG. 5 is an enlarged cross-sectional view, partially omitted, showing a state before the press-fitting of the closing member is completed.

FIG. 6 is an enlarged sectional view showing a state where the press-fitting of the closing member is completed.

FIG. 7 is a schematic cross-sectional view showing a state where holes are inclined in a horizontal plane.

FIG. 8 is a perspective view of a closing member according to a third embodiment.

FIG. 9 is an enlarged sectional view showing a state where the press-fitting of the closing member is completed.

FIG. 10 is a schematic sectional view showing a state before closing in a non-adjustable type.

FIG. 11 is a schematic cross-sectional view showing a state after closing in the example shown in FIG. 10;

[Explanation of symbols]

 4,52 Anchor body 6 Female thread part (screw part) 8,54,62 Closure member 10 Pin 12 Tip part 14 Slit 22 Flange part 28,56,64 Flange part 28a Surface 30 Operation groove 38 Communication hole 40 Opening 60, 68 Arbitrary posture holding projection 58, 66 Column plug

Claims (1)

(57) [Claims] 1. A hole extending from a surface side of an exterior material such as a tile on a surface of a concrete structure or the like to a concrete structure or the like, a substantially pipe-shaped anchor main body is inserted into the hole, and then the anchor is inserted. Is fixed to the concrete structure or the like at the rear end position, and an adhesive is fixed to the exterior material such as a tile by pressing an adhesive into the exterior material from the surface side through the hole. A closing member having a flange portion having a width large enough to close the opening portion and having a column-shaped plug portion having a diameter smaller than the inner diameter of the anchor main body, wherein the columnar member is inserted into the anchor main body, and the flange portion is an opening of the hole. In this manner, the adhesive is press-fitted to prevent leakage of the press-fitted adhesive from the opening of the hole, and the surface side of the flange portion is substantially flush with the surface side of the exterior. Bonded Method exterior object such as a tile using the anchor member, characterized in that it has adapted to the.