JPH08128210A - Anchor member - Google Patents

Abstract

PURPOSE: To improve the working efficiency and suppress the deterioration of the outside appearance by sealing the rear end part of an anchor body immediately after the change of a sealing material, and adjusting the surface of a seal part to the equal level, as for the wall surface repair, etc. CONSTITUTION: An anchor member 2 is equipped with an anchor body 4 which is inserted into a communication hole 38 which leads from a pottery tile 32 to a mortar layer 34 and a concrete substrate 36, female screw part 6 formed at the rear end part of the anchor body 4, closing member 8 screwed with the female screw part 6, and a pin 10 for spreading the top end part 12 through the striking shift. On the closing member 8, a flange part 28 having the area for covering the opened port part 40 having the large diameter is formed. The sealing work is enabled immediately after the charge of the sealing material 44 by the screwing constitution of the closing member 8 at the rear end part of the anchor body 4, and the surface of the flange part 29 and the surface of the pottery tile 32 can be set at an equal level by adjusting the screwing quantity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor member which is used by fixing it in a concrete structure or the like in an embedded state.
In particular, the present invention relates to an anchor member suitable for repairing a wall surface for preventing the fall of exterior materials such as tiles.

[0002]

2. Description of the Related Art In view of the situation that exterior materials such as tiles fall due to internal mortar peeling, cracks, etc., recently, a wall repair method has been implemented in which the exterior material is directly fixed to a concrete underlayer with an anchor member. As an anchor member suitable for such repair, there is, for example, one disclosed in Japanese Patent Laid-Open No. 4-128473 by the present applicant.

This is provided with a tubular anchor body having a flange portion that spreads outward at the rear end, and a pin is held in a state in which the collar portion is locked in a large-diameter hole opening formed in the exterior material. Drive it in to expand and fix the tip, then inject a sealing material such as epoxy resin from the rear end of the anchor body to spread it inside and outside the anchor, and finally fill the opening of the hole with resin or seal it. It has a construction method in which a stop member is applied and fixed with an adhesive so that the color of the exterior material is substantially the same.

[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 the injection, it may be damaged or pushed back by the return pressure. The repairing method has to be performed only after the sealing material has been solidified, which requires 1 to 2 hours, and in some cases, tens of hours, which is a factor that significantly reduces the work efficiency.

Further, since the sealing cannot be performed immediately after the injection, there is also a problem that it is necessary to prevent the so-called drooling from the opening until it solidifies.

Incidentally, 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 body, whereby a sealing operation immediately after injection can be carried out. it can. However, in this case, in order to obtain a flush state between the surface of the cap member and the surface of the exterior material, it is necessary to form the depth of the opening with high accuracy. On the other hand, when the material of the exterior material is relatively soft, the flange portion of the anchor body is slightly indented by the driving force of the pin, and the depth of the opening changes. Therefore, when it protrudes, the appearance is inferior, and when it is buried, it takes a lot of time and labor for the sealing work.

Further, the holes drilled in concrete or the like are
It is desirable that the holes be drilled straight, that is, perpendicular to the surface of the exterior material.
In this case, there is also 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, the surface of the exterior material can be made flush with each other, thus improving the work efficiency. It is an object of the present invention to provide an anchor member capable of achieving the above.

Another object of the present invention is to provide an anchor member which can be repaired so as to be flush with the surface of the exterior material even if the hole is formed obliquely.

The present invention was devised to achieve the above object, and is characterized in that it has a slit extending in the axial direction at its tip and the tip is expanded by pin driving to be drilled in concrete or the like. A pipe-shaped anchor body that can be locked in the hole, a female screw portion formed at the rear end of the anchor body, and a flange portion having a width that closes the opening portion of the hole, and And a closing member that is screwed onto the female screw portion so that the flange portion can be adjusted in the axial direction.

Further, a flange portion extending in the radial direction may be formed at the rear end of the anchor body.

Further, the flange portion may be provided with an operation groove for rotationally operating from the outside.

Furthermore, the surface of the flange portion may have substantially the same color as the surface of the member on which the opening of the hole is formed.

Another feature of the present invention is that a pipe-shaped anchor having a slit extending in the axial direction at the tip end thereof and capable of engaging with a hole formed in concrete or the like by expanding the tip end by pin driving. A main body and a closing member having a flange portion having a width for closing the opening portion of the hole and having a columnar plug portion having a diameter smaller than the inner diameter of the anchor main body and being press-fitted from the rear end of the anchor main body, The columnar plug portion is formed so as to be press-fitted with an outer diameter dimension slightly larger than the inner diameter of the anchor body, and an arbitrary posture holding convex portion that can be positioned regardless of the posture deviation of the closing member with respect to the anchor body in the axial center intersecting direction. Is formed.

Further, it is possible to adopt a structure in which the arbitrary posture holding convex portions are respectively formed at positions facing each other in the radial direction of the columnar plug portions.

Further, the arbitrary posture holding convex portion may be formed in an annular shape whose outer peripheral surface is knurled.

Further, a flange portion extending in the radial direction may be formed at the rear end of the anchor body.
*

Further, the surface of the flange portion may have substantially the same color as the surface of the member on which the opening of the hole is formed.

[0019]

According to the present invention, for example, the anchor body is inserted into the communication hole formed from the exterior material such as tiles to the mortar and the concrete base, and the pin is driven therein. The tip of the pin is expanded by driving the pin, and the anchor body is fixed to the communication hole. In this state, the sealing material is injected from the rear end of the anchor body, and the closing member is screwed into the rear end of the anchor body immediately after the injection. The amount of screwing of the closing member is adjusted so that the surface of the flange portion is flush with the surface of the exterior material. The rear end portion of the anchor body is sealed by the screwing of the closing member, which prevents the sealing material from flowing out.

According to the anchor member of the second aspect, the collar portion is engaged with the opening portion of the communication hole to position the anchor body with respect to the communication hole, thereby facilitating the pin driving operation.

According to the anchor member of the third aspect, the closing member is rotated by the driver or the like through the operation groove, whereby the screwing amount of the closing member can be easily adjusted.

According to the anchor member of the fourth aspect, after the sealing by the closing member, the appearance of the exterior material is avoided from being inferior without requiring the operation of making the surface of the exterior material the same color.

According to the anchor member of the fifth aspect, immediately after injection of the sealing material, the closing member is driven in from the rear end of the anchor body by a hammer or the like and press-fitted. Even if the holes for drilling into the concrete are not perpendicular to the surface of the exterior material, the occlusal member is corrected by the arbitrary-position-holding projection so that its axis is perpendicular to the surface of the exterior material. Is flush with the surface of the exterior material.

According to the anchor member of the sixth and seventh aspects, the ventilation path is secured by the gap between the arbitrary posture holding convex portion and the columnar plug portion or the gap by the knurling, and the air escape at the time of press fitting and the sealing material. Can be obtained.

[0025]

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 female screw portion 6 screwed to the female screw portion 6. And a pin 10 that moves in the anchor body 4 in the axial direction and expands the tip portion 12. The anchor body 4 is preferably made of stainless steel.

The tip portion 12 of the anchor body 4 is formed with slits 14, 14 extending in the axial direction on both sides, and within the range of the length of the slit 14, a reduced diameter portion by means of drawing or the like. A plurality of 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 slipping off by the inward projections 20 and 20 formed by a punch or the like in order to achieve an integrated distribution with the anchor body 4. Furthermore, 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 in the anchor body 4.
It is composed of a plug portion 24 to be inserted into a, a male screw portion 26 to be screwed into the female screw portion 6, and a flange portion 28. An operation for rotating the surface 28a of the flange portion 28 from the outside. A groove 30 is formed. Flange 28
Has an area covering the large-diameter opening 40 of the communication hole 38. Further, the plug portion 24 also has a function as a guide portion for facilitating screwing of the male screw portion 26.

Next, the operation of using the anchor member 2 will be described by taking wall repair as an example. As shown in FIG. 3, the peeled portions P ₁ , P ₂
Porcelain tile 3 as an exterior material in a wall structure with
A communication hole 38 extending from 2 to the mortar layer 34 and the concrete base 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 collar 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 in 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, so that each locking member 18 bites into the side surface of the communication hole 38. In this example, since the locking members 18 are set at three positions with a gap in the axial direction, even if one locking member 18 corresponds to a soft site having a low aggregate distribution density, other locking members 18 are locked. Since the locking force due to the biting by the member 18 can be obtained, a highly reliable and stable locking force can be obtained as a whole.

Further, by arranging the collar portion 22 as in this example, the anchor body 4 can be easily positioned with respect to the communication hole 38, and the anchor body 4 can be simply operated by driving the pin 10. There is an advantage that the three-way bonding of the porcelain tile 32, the mortar layer 34 and the concrete underlayer 36 can be completed at the same time as the fixing. In addition, in order to utilize the above-described positioning function of the collar portion 22, the communication hole 38 is set to a depth such that the void portion 42 exists on the tip side when the anchor body 4 is fixed.

After fixing the anchor body 4, as shown in FIG. 1, for example, an epoxy resin type sealing material 44 is injected and filled from the rear end of the anchor body 4. The sealing material 44 injected into the cylinder flows out from the inside of the cylinder to the outside of the cylinder through a gap or the like due to the slit 14, and the void portion 4 of the communication hole 38.
While excluding 2 air, it flows backward and reaches the peeling portions P ₁ and P ₂ .

Then, 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. A so-called mechanical sealing structure is completed when screwing of the closing member 8 is started, whereby the influence of the return pressure of the sealing material 44 is blocked, 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 matches the surface 32a of the porcelain tile 32, that is, is flush with the surface 32a.

Therefore, since the opening 40 can be sealed immediately after filling regardless of the conditions such as the quick-drying property of the sealing material 44, the working efficiency can be improved and the surface can be surely made flush by adjustment. Therefore, it is possible to avoid the appearance deterioration. Further, even if the bottom surface 40a of the opening 40 is buried by the driving force of the pin 10, the surface can be adjusted without any influence. Note that the depth d of the opening 40 is set to be larger than the total size of the thickness of the flange 22 and the thickness of the flange 28 in order to exert the adjusting function by the axial movement of the flange 28.

In this example, at least the flange portion 2
The surface 28a of No. 8 is baked and painted with substantially the same color as the surface 32a of the porcelain tile 32, so that the poor appearance after repair is suppressed as much as possible.

Further, the operating groove 30 is set to a minimum size capable of performing a rotating operation, and even if it is left after repairing, the appearance has almost no adverse effect on the appearance even if it is left after repairing. A finishing treatment can be performed by rubbing a resin or the like. Each member of the anchor member 2 in this example is made of a stainless steel material 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 into the clearance of the screw so as to be solidified or adhered between the plug portion 24 and the sealing member 44. Looseness is prevented. If the plug portion 24 is formed with a concave portion or a convex portion that does not rotate about the axis, the loosening prevention function can be further improved.

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

The anchor member 50, as shown in FIG.
The anchor main body 52 has the collar portion 22 at the rear end and houses the pin 10, and the closing member 54 is press-fitted from the rear end of the anchor main body 52 by hammering.

The closing member 54 has a flange portion 56 having a width that closes the opening 40, a columnar plug portion 58 having a diameter smaller than the inner diameter t of the anchor body 52, and a position where the columnar plug portion 58 faces each other in the radial direction. Arbitrary posture holding convex portions 60 formed respectively,
60 and the arbitrary posture holding convex portions 60, 6
The outer diameter dimension s of 0 is set to be slightly larger than the inner diameter t of the anchor body 52. The arbitrary posture holding convex portion 6
Although 0 and 60 can be formed integrally with the columnar plug portion 58, in this example, they are brazed as separate members to the recess formed in the columnar plug portion 58. Also, the arbitrary posture holding convex portion 6
Nos. 0 and 60 have curved convex surfaces so that press-fitting can be smoothly performed.

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 with} respect to the surface 32a of the porcelain tile 32, that is, when the axis is displaced, the anchor body is formed. 52 is locked along the axis L ₂ of the communication hole 38. After the anchor body 52 is locked, the sealing material 44 is filled (not shown in FIG. 5), and then the closing member 54 is inserted from the rear end of the anchor body 52.
Is driven along the axis L ₂ . Since the outer diameter between the arbitrary posture holding convex portions 60, 60 is larger than the inner diameter t of the anchor body 52, the closing member 54 is fixed to the anchor member 54 immediately after the arbitrary posture holding convex portions 60, 60 are pressed into the anchor body 52. The state in which the main body 52 is positioned (prevented from falling out) at any position 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, when further driven, the driving force acts on the upper side of the flange portion 56, and as a result, the axis L _{3 of the} arbitrary posture holding convex portions 60, 60 is displaced in the arrow direction and Accordingly, the axis of the closing member 54 coincides with the vertical line L ₁ , and the flange portion 56 and the porcelain tile 32 are
Is flush with the surface 32a.

In this example, the case where the communication hole 38 is tilted in the vertical direction is shown, but the same can be applied even if the communication hole 38 is tilted in the horizontal direction. That is, as shown in FIG. 7, even if the closing member 54 that has been press-fitted is press-fitted in the same posture (the arbitrary posture holding convex portions 60, 60 are located vertically) as in the above example, the arbitrary posture holding convex portion is pressed. Since the horizontal plane can be rotated about 60 and 60 as an axis, the closing member 54 has its axis corrected by driving, and a flush state can be obtained.

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

Next, FIGS. 8 and 9 show a modification of the closing member.

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

In the case of this annular type, it is not necessary to align the position of the arbitrary posture holding convex portion 68 with the inclination of the communication hole 38 as compared with the above example, and there is an advantage that it can be applied in all directions.
Further, the air bleeding at the time of press fitting and the movement of the sealing material 44 are secured by the knurled groove.

In each of the above examples, each constituent element is shown in a specific shape, but the present invention is not limited to this, and is designed as appropriate within a range in which the sealing material sealing function and the flush adjustment function can be obtained. You can change or change the material.
Further, not only sealing of the sealing material but also application to a sealing structure of slurry or the like is possible.

In each of the above examples, the opening 40 must have a certain depth or more in order to effectively obtain the adjusting function of the closing member 8 or the like. However, the depth of the opening 40 is reduced and the recessed portion is formed. It is also possible to adopt a method of simply treating with a mortar or the like. An example of this is shown in FIGS.

As shown in FIG. 10, the closing member 70 has a male screw portion 72 which is screwed into the female screw portion 6 of the anchor body 14.
And a contact portion 74 that is in close contact with the curved convex portion 22a at the boundary between the collar portion 22 and the straight portion of the anchor body 14 and is flush with the outer surface of the collar portion 22. When the closing member 70 is rotated and screwed in after the sealing material 44 has been injected, as shown in FIG.
Closely fits the curved convex portion 22a of the collar portion 22 to form a mechanical sealing structure of the sealing material.

The slight space of the opening 40 is used for the mortar 7.
It is filled with 6 etc. and processed. In this system, the adjusting function cannot be obtained, but there is an advantage that the depth of the opening 40 can be reduced. In addition, although the screwing method is illustrated, the above-mentioned driving method can be similarly applied.

[0051]

According to the present invention, the rear end of the anchor body can be sealed immediately after filling without the solidification time of the sealing material, so that the working efficiency can be improved and the screwing amount can be adjusted. By this, the opening can be surely closed in the same plane, so that it is possible to avoid the appearance deterioration in the wall surface repair.

According to the anchor member of the second aspect, the anchor main body can be easily positioned by locking the collar portion in the opening, and thus the anchoring work can be easily performed.

According to the anchor member of the third aspect, the turning operation of the closing member can be easily performed.

According to the anchor member of the fourth aspect, it is possible to avoid the color difference of the surface after the opening is closed, and thus to avoid the appearance deterioration.

According to the anchor member of the fifth aspect, even when the holes are drilled in the concrete or the like, the surface of the exterior material is easily flush with the surface of the exterior member by hitting the flange portion while the blocking member is in the retaining state. Can be

According to the anchor member of the seventh aspect, regardless of the direction of inclination of the hole, the closing member can be press-fitted in any posture to adjust the surface flush, and workability can be improved.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an anchor member according to an embodiment of the present invention in a use state.

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

FIG. 3 is a vertical cross-sectional view showing a fixed state of the anchor body before injecting the sealing material.

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

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

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

FIG. 7 is a schematic cross-sectional view of a state in which 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 cross-sectional view showing a press-fitting completed state of the closing member.

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

11 is a schematic cross-sectional view showing a state after the blockage of the example shown in FIG.

[Explanation of symbols]

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

Claims (9)

[Claims] 1. A pipe-shaped anchor main body having a slit extending in the axial direction at the front end thereof, which can be locked in a hole formed in concrete by expanding the front end by pin driving, and the anchor main body. It has a female screw portion formed at the rear end portion and a flange portion having a width that closes the opening portion of the hole, and is screwed into the female screw portion so that the flange portion can be axially adjusted with respect to the opening portion. An anchor member including a closing member. 2. The anchor member according to claim 1, wherein a flange portion extending in a radial direction is formed at a rear end of the anchor body. 3. The anchor member according to claim 1, wherein the flange portion is formed with an operating groove for rotationally operating from the outside. 4. The anchor member according to claim 1, wherein the surface of the flange portion has substantially the same color as the surface of the member on which the opening of the hole is formed. 5. A pipe-shaped anchor body which has a slit extending in the axial direction at its tip and which can be locked in a hole formed in concrete by expanding the tip by pin driving, and the opening of said hole. A closure member having a columnar plug portion having a diameter smaller than the inner diameter of the anchor body and having a flange portion having a width that closes the portion is provided, and the columnar plug portion includes the columnar plug portion. An anchor member formed so as to be press-fitted with an outer diameter slightly larger than the inner diameter of the anchor body and having an arbitrary posture holding convex portion that can be positioned regardless of the positional deviation of the closing member with respect to the anchor body in the direction intersecting the axial center. . 6. The arbitrary-position-holding convex portion is formed at a position facing each other in the radial direction of the columnar plug portion.
The described anchor member. 7. The anchor member according to claim 5, wherein the arbitrary posture holding convex portion is formed in an annular shape having an outer peripheral surface subjected to knurling. 8. The anchor member according to claim 5, 6 or 7, wherein a flange portion extending in a radial direction is formed at a rear end of said anchor body. 9. The anchor member according to claim 5, 6, 7 or 8, wherein the surface of the flange portion has substantially the same color as the surface of the member on which the opening of the hole is formed.