JP6410499B2 - Anchor pin for pinning method and pinning method using the same - Google Patents

Description

  The present invention relates to an anchor pin for a pinning method used for repairing an outer wall or the like (pinning method) using a scratch tile having “floating” as a finishing material, and a pinning method using the same.

Conventionally, as an anchor pin for this type of pinning method, an anchor pin used for repairing a tile-finished outer wall (pinning method) in which floating has occurred is known (see Patent Document 1). In this pinning method (anchor pinning method), adhesive is injected into the insertion hole that penetrates the tile and drilled in the concrete frame, and the anchor pin is inserted and mounted to repair the floating outer wall of the tile finish. Is.
The anchor pin of Patent Document 1 includes a trunk portion that is inserted into the insertion hole and has an external thread engraved on the outer peripheral surface thereof, and a head portion that is provided at one end of the trunk portion and presses the tile. The head includes a reinforcing central portion that is continuous with the body portion and is formed in a dish shape, and a presser peripheral portion that surrounds the reinforcing central portion. The reinforcing central portion is inserted into the opening of the insertion hole (tile portion), and the presser peripheral edge is in close contact with the opening edge of the insertion hole (tile portion). The anchor pin in this case is for a tile with a flat surface and porcelain. For this reason, the head has a flat surface and is thin (0.3 to 0.5 mm), and the surface is baked in accordance with the tile, so that the head is inconspicuous.

JP 2004-238847 A

By the way, in some old buildings that require repairs, there are some that use exterior tiles as scratch tiles. Scratch tiles are tea-based stone tiles with a striped scratch pattern on the surface.
When implementing the above-mentioned conventional pinning method on a wall body made of scratch tile as a finishing material, an insertion hole is formed in the scratch groove portion, or an insertion hole is formed between adjacent scratch grooves. Will be. In such a case, the anchor pin inserted and mounted in the insertion hole is very conspicuous even if it is baked with the same color as the scratch tile because the head of the anchor pin covers (strides) the scratch groove. That is, in the conventional pinning method anchor pin applied to the scratch tile, there is a problem that the linearity of the scratch groove is partially impaired and the design of the finishing material (wall body) is impaired.

  An object of the present invention is to provide an anchor pin for a pinning method that does not impair the design of a wall body that uses a scratch tile as a finishing material, and a pinning method using the same.

  The anchor pin for the pinning method of the present invention penetrates through a scratch tile having a plurality of scratched grooves formed on the surface thereof, drills the concrete frame to a predetermined depth, and inserts it into an insertion hole into which an adhesive has been injected. An anchor pin for the pinning method to be used, with the surface exposed to the surface of the scratch tile, a cap portion that fits into the insertion hole, and a pin that is inserted into the insertion hole at the end of the cap portion And a cap portion having a camouflage groove having substantially the same cross-sectional shape as the scratch groove on the surface.

  According to this configuration, by drilling the insertion hole at a position where the scratching groove of the scratch tile and the camouflage groove of the cap part can be aligned, and inserting the pin body and the cap part into the insertion hole, The scratch groove and camouflage groove can be aligned. If the scratch groove and the camouflage groove are aligned, the apparent continuity of the scratch groove is maintained, and the surface of the cap portion becomes inconspicuous. Therefore, the design of the wall body using the scratch tile as a finishing material is not impaired.

  In this case, it is preferable that the cap part and the pin main body are screw-joined.

  According to this configuration, the pin body can be manufactured as a general-purpose member, and the cap portion (camouflage groove) can be manufactured as a dedicated member according to the scratch tile (scratch groove). Further, by joining the cap portion and the pin main body, these can be integrally inserted into the insertion hole, and the workability of the pinning method can be improved.

  Moreover, it is preferable that the cap part and the pin main body are integrally formed.

  According to this configuration, the cap portion and the pin main body can be integrally inserted into the insertion hole, and the workability of the pinning method can be improved.

  Alternatively, it is preferable that the cap portion and the pin body are formed separately.

  According to this configuration, the pin body can be manufactured as a general-purpose member, and the cap portion (camouflage groove) can be manufactured as a dedicated member according to the scratch tile (scratch groove).

  Moreover, it is preferable that the camouflage groove | channel is arrange | positioned on the line which passes along the center of the surface in a cap part.

  According to this configuration, by forming the insertion hole in the scratch groove portion of the scratch tile, the camouflage groove of the cap portion fitted in the insertion hole and the scratch groove can be easily aligned. .

  Furthermore, it is preferable that the surface of the cap part and the camouflage groove are colored so as to match the color of the scratch tile.

  According to this configuration, if the camouflage groove of the cap portion fitted in the insertion hole is matched with the scratch groove of the scratch tile, the surface of the cap portion exposed on the surface of the scratch tile is extremely inconspicuous. Can do. Therefore, the design of the wall body using the scratch tile as a finishing material is not impaired.

  The pinning method of the present invention is a pinning method for repairing a wall body using the above-described anchor pin for the pinning method as a finishing material, and penetrating the scratch tile at the scratch groove position of the scratch tile. Drilling process for drilling insertion holes to a predetermined depth in the concrete frame, injection process for injecting adhesive into the insertion holes, and pin insertion process for inserting and inserting anchor pins into the insertion holes into which the adhesive has been injected And a groove alignment step of rotating the cap portion of the inserted anchor pin to align the camouflage groove of the cap portion and the scratch groove of the scratch tile.

  According to this structure, the center of the scratching groove and the center of the cap part fitted to the scratching groove can be matched by punching the insertion hole at the position of the scratching groove. Accordingly, by rotating the inserted cap portion, the camouflage groove of the cap portion and the scratch groove of the scratch tile can be easily and accurately aligned. Therefore, the surface of the cap part exposed on the surface of the scratch tile can be made extremely inconspicuous, and the design of the wall body using the scratch tile as a finishing material is not impaired. Further, by drilling the insertion hole at the position of the scratching groove, the positional deviation of the drilling bit at the initial stage of drilling is suppressed (the scratching groove functions as a pilot hole), and the drilling operation can be easily performed.

It is a cross-sectional schematic diagram showing the relationship between the anchor pin and outer wall which concern on 1st Embodiment. It is a perspective view showing the relationship between the anchor pin and scratch tile which concern on 1st Embodiment. It is a front view of the anchor pin concerning a 1st embodiment. It is explanatory drawing (a), (b), (c) of the pinning construction method which concerns on 1st Embodiment. It is explanatory drawing (a), (b), (c) of the pinning construction method which concerns on 1st Embodiment. It is a front view of the anchor pin concerning a 2nd embodiment. It is a front view of the anchor pin concerning a 3rd embodiment.

  Hereinafter, an anchor pin for a pinning method according to an embodiment of the present invention (hereinafter simply referred to as “anchor pin”) and a pinning method using the same will be described with reference to the accompanying drawings. In this pinning method, the adhesive pin is inserted into the insertion hole drilled in the repaired part such as the outer wall of the building where “floating” has occurred, and then the anchor pin is inserted. It will be repaired. The anchor pin of the present embodiment is for repairing an outer wall or the like having a scratch tile as a finishing material.

  FIG. 1 is a schematic cross-sectional view illustrating a relationship between an anchor pin and an outer wall according to the first embodiment. As shown by the phantom lines in the figure, the outer wall 1 is obtained by attaching a scratch tile 4 as a finishing material to the surface of a concrete casing 2 via a mortar 3, and between the concrete casing 2 and the mortar 3. A first floating portion 5 and a second floating portion 6 are formed between the mortar 3 and the scratch tile 4. Further, in order to repair this, the outer wall 1 is formed with insertion holes 7 that penetrate the scratch tile 4 and the mortar 3 and perforate the concrete casing 2 to a predetermined depth. Then, an adhesive 8 is injected into the insertion hole 7 (see FIG. 5A), and the anchor pin 10 is inserted and mounted.

  As shown in FIG. 2, the scratch tile 4 is a brown tiled tile with a striped scratch pattern on the surface, and a plurality of scratch grooves 4 a constituting the scratch pattern are formed. In the present embodiment, the insertion hole 7 is formed in one scratch groove 4a located in the central portion of the scratch tile 4, and the anchor pin 10 is inserted and attached thereto. For this reason, the anchor pin 10 is constructed so that the center thereof coincides with the center of the scratch groove 4a (details will be described later).

  As shown in FIGS. 1 to 3, the anchor pin 10 of this embodiment (first embodiment) is made of stainless steel, steel, or the like, and the surface is exposed to the surface of the scratch tile 4, and the insertion hole 7, and a pin body 12 that is inserted into the insertion hole 7 at the tip of the cap portion 11. The cap part 11 and the pin main body 12 are formed separately and are screwed together.

  The pin body 12 is composed of a straight full thread pin (male thread). The pin main body 12 of the present embodiment has a diameter of, for example, 4 mm and is inserted to a length of 25 mm or more with respect to the concrete housing 2.

  The cap portion 11 is integrally formed with a neck portion 14 that forms a female screw portion 14 a into which the pin body 12 is screwed, and a dish-like head portion 15 that continues to the neck portion 14. The neck portion 14 is formed in a gentle angle taper shape, and the head portion 15 is formed in a steep angle taper shape. Further, the neck portion 14 is fitted into the opening portion of the insertion hole 7, and the head portion 15 is fitted into the chamfered portion 7a formed in the opening portion (details will be described later).

  The surface of the head portion 15 is formed flat except for a camouflage groove 16 to be described later, and is constructed so as to be flush with the surface of the scratch tile 4 in a state of being fitted to the chamfered portion 7a. For this reason, the diameter of the head portion 15 is formed to be slightly larger than the insertion hole 7 so as to match the diameter of the chamfered portion 7a (about 7 mm in diameter), and the thickness thereof is 0.3 to 0.5 mm. It is formed thin.

  Furthermore, the cap part 11 has the camouflage groove | channel 16 of the same cross-sectional shape as the scratching groove | channel 4a on the surface. Specifically, the camouflage groove 16 is recessed in a “U” -shaped cross section from the head portion 15 to the neck portion 14 so as to have the same cross-sectional shape as the scratch groove 4a. Further, the camouflage groove 16 is disposed on a line passing through the center of the surface of the cap portion 11, that is, extending in the diameter direction. Furthermore, the surface of the cap part 11 exposed on the surface of the scratch tile 4 is colored by baking painting or the like so as to match the color of the scratch tile 4 (the surface thereof).

  The anchor pin 10 configured as described above is produced by separately manufacturing a cap part 11 and a pin body 12 which are separate bodies and screwing them together. The cap portion 11 is manufactured in accordance with the cross-sectional shape of the scratch groove 4a of the scratch tile 4 to be repaired and the color of the scratch tile 4, and the pin body 12 is made of a plurality of types having different lengths from the insertion hole 7. The one having a length corresponding to the depth is selected and used.

Here, with reference to FIG. 4 and FIG. 5, the pinning construction method for repairing the outer wall 1 using said anchor pin 10 is demonstrated with the procedure.
This pinning method includes a keying process for determining the drilling position (floating portion) of the insertion hole 7 by keying the outer wall 1, a drilling process for drilling the insertion hole 7 at each determined drilling position, and a drilled insertion A chamfering process for chamfering the opening edge of the hole 7 into a substantially hemispherical shape, an injection process for injecting the adhesive 8 into the insertion hole 7, and an anchor pin 10 being inserted into the insertion hole 7 into which the adhesive 8 has been injected. And a groove alignment step of aligning the camouflage groove 16 of the cap portion 11 of the inserted anchor pin 10 and the scratch groove 4a of the scratch tile 4.

  In the keying process, the outer wall 1 is keyed using a hammer or the like, and the repaired portion of the outer wall 1, that is, the first floating part 5 and the second floating part 6 are searched based on the keying sound, and the insertion hole 7 is drilled. Determine the position. In this case, the perforation position is the position of one scratch groove 4a located at the center of each scratch tile 4, and marking is appropriately performed.

  In the drilling process, the insertion hole 7 is drilled to the concrete casing 2 through the scratch tile 4 and the mortar 3 to a predetermined depth (30 mm or more) with a drilling tool 21 such as a diamond core drill (see FIG. 4A). ). The insertion hole 7 is a straight hole that is perpendicular to the scratch tile 4 and has a diameter that is slightly larger than the anchor pin 10 (pin body 12) so that the anchor pin 10 can be loosely fitted. After the insertion hole 7 is drilled, the chips adhering in the insertion hole 7 are sucked and cleaned with a blower or the like. However, in the case of drilling using a cooling water (wet drill) and chips are discharged together with the cooling water, this suction / cleaning is omitted.

  In the chamfering step, the chamfered portion 7a is formed by grinding (chamfering) the opening edge of the insertion hole 7 into a substantially hemispherical shape using a spherical grinding bit 22 or the like (see FIG. 4B). In this case, the grinding bit 22 having the same diameter as the cap portion 11 (head portion 15) of the anchor pin 10 is used. In addition, the grinding bit 22 is tilted as appropriate to perform grinding so as not to cause uneven diminishing.

  In the injection step, a pump type resin injector 23 is used, and the injection nozzle 24 is inserted into the insertion hole 7 to inject the adhesive 8 (epoxy resin adhesive or the like). The resin injector 23 of the embodiment is provided with an operation rod 25 for moving the injection nozzle 24 forward and backward, sealing the opening portion (the chamfered portion 7 a) of the insertion hole 7 and inserting the tip of the injection nozzle 24. The injection is started by advancing to the innermost part of the hole 7 (see FIG. 4C).

  When the injection (pumping) of the adhesive 8 is started, the adhesive 8 is filled in the insertion hole 7 from the innermost part and spreads in a circular shape (disk shape) at the first floating portion 5. Injected. When the adhesive 8 is injected into the first floating portion 5, the tip of the injection nozzle 24 is retracted to the first floating portion 5, and the injection (pumping) of the adhesive 8 is performed again. Thereby, the adhesive 8 is also injected into the second floating portion 6 (see FIG. 5A). The adhesive 8 is injected up to the second floating portion 6 so that the adhesive 8 does not overflow in the subsequent pin insertion process.

  In the pin insertion step, the anchor pin 10 in which the cap portion 11 and the pin main body 12 are screwed together is inserted and loaded into the insertion hole 7 into which the adhesive 8 has been injected (see FIG. 5B). When the anchor pin 10 is inserted into the insertion hole 7, the adhesive 8 in the insertion hole 7 flows, and the adhesive 8 blends with the pin body 12 and is filled to the vicinity of the opening portion of the insertion hole 7. .

  In this case, the anchor pin 10 is inserted into the insertion hole 7 while being roughly aligned so that the camouflage groove 16 of the anchor pin 10 matches the scratch groove 4 a of the scratch tile 4. Then, at the final stage of insertion, using the spatula 26 or the like, the anchor pin 10 is pressed against the surface of the anchor pin 10 so that the surface of the anchor pin 10 and the surface of the scratch tile 4 are flush with each other.

  In the groove aligning step, the spatula 26 is engaged with the camouflage groove 16 and the cap portion 11 is appropriately rotated to position the camouflage groove 16 of the anchor pin 10 in the scratch groove 4a of the scratch tile 4 so as to be linear. Matching is performed (see FIG. 5C). However, the spatula 26 may be engaged with the camouflage groove 16, and the camouflage groove 16 and the scratching groove 4a may be aligned and pushed in such a manner that the groove bottoms are flush with each other. That is, the surface of the anchor pin 10 and the surface of the scratch tile 4 may be flush with each other, and the camouflage groove 16 and the scratch groove 4a may be aligned so as to be linear. Then, curing is performed until the adhesive 8 is finally cured.

  As described above, according to the anchor pin 10 of the first embodiment, the insertion hole 7 is drilled at the position of the one scratch groove 4 a located at the center portion of the scratch tile 4, and the anchor hole 7 is anchored. The pin 10 is inserted, and the scratch groove 4a of the scratch tile 4 and the camouflage groove 16 of the anchor pin 10 are aligned. Thereby, the scratch groove 4a and the camouflage groove 16 are matched, and the apparent continuity of the scratch groove 4a is maintained. For this reason, the surface of the cap part 11 of the anchor pin 10 exposed on the surface of the scratch tile 4 is extremely inconspicuous. Therefore, the design of the outer wall 1 using the scratch tile 4 as a finishing material is not impaired.

  Next, the anchor pin 10A according to the second embodiment will be described with reference to FIG. However, in the following description, it demonstrates focusing on a different part from 1st Embodiment. As shown in the figure, in the anchor pin 10A of the second embodiment, the cap portion 11 and the pin body 12 are integrally formed of stainless steel or the like. Also in this case, the cap part 11 consists of the neck part 14 and the head part 15, and the pin main body 12 is comprised with all the screws.

  As described above, according to the anchor pin 10A of the second embodiment, the cap portion 11 and the pin body 12 can be integrally inserted into the insertion hole 7, and workability in the pinning method can be improved. .

  Next, with reference to FIG. 7, the anchor pin 10B which concerns on 3rd Embodiment is demonstrated. However, in the following description, it demonstrates focusing on a different part from 1st Embodiment. As shown in the figure, the anchor pin 10B of the third embodiment has a cap portion 11 and a pin body 12 formed separately. Also in this case, the cap part 11 consists of the neck part 14 and the head part 15, and the pin main body 12 is comprised by all the screw pins.

  As described above, according to the anchor pin 10B of the third embodiment, the pin body 12 can be manufactured as a general-purpose member corresponding to the target outer wall 1, and the cap portion 11 (camouflage groove 16) can be formed. It can be manufactured as a dedicated member in accordance with the scratch tile 4 (the scratch groove 4a and color).

  The camouflage groove 16 formed in the cap portion 11 of the present invention is intended to have a form that does not disturb the linearity of appearance of the scratch groove 4a of the scratch tile 4, and is a straight line of the scratch groove 4a that is visually recognized as a shadow. As long as the characteristics are not disturbed, the cross-sectional shape of the camouflage groove 16 with respect to the scratch groove 4a may not completely match.

  DESCRIPTION OF SYMBOLS 1 Exterior wall, 2 Concrete frame, 3 Mortar, 4 Scratch tile, 4a Scratch groove, 5 1st floating part, 6 2nd floating part, 7 Insertion hole, 8 Adhesive 10, 10A, 10B Anchor pin, 11 Cap part , 12 pin body, 14 neck, 15 head, 16 camouflage groove

Claims (7)

An anchor pin for a pinning method that penetrates through a scratch tile having a plurality of scratch grooves formed on the surface thereof, drills the concrete frame to a predetermined depth, and is inserted into an insertion hole filled with an adhesive. ,
With the surface exposed on the surface of the scratch tile, a cap portion that fits into the insertion hole, and a pin body that is inserted into the insertion hole at the tip of the cap portion, and
An anchor pin for a pinning method, wherein the cap portion has a camouflage groove having substantially the same cross-sectional shape as the scratch groove on the surface.   The anchor pin for the pinning method according to claim 1, wherein the cap portion and the pin body are screwed together.   The said pin part and the said pin main body are integrally formed, The anchor pin for the pinning method of Claim 1 characterized by the above-mentioned.   The said pin part and the said pin main body are formed in the different body, The anchor pin for the pinning method of Claim 1 characterized by the above-mentioned.   The anchor pin for the pinning method according to any one of claims 1 to 4, wherein the camouflage groove is disposed on a line passing through a center of the surface of the cap portion.   The pin for the pinning method according to any one of claims 1 to 5, wherein the surface of the cap portion and the camouflage groove are colored so as to match a color of the scratch tile. A pinning method for repairing a wall body using the anchor pin for the pinning method according to claim 5 or 6 and using the scratch tile as a finishing material,
A drilling step of drilling the insertion hole to a predetermined depth through the scratch tile at the position of the scratch groove of the scratch tile;
An injection step of injecting an adhesive into the insertion hole;
A pin insertion step of inserting and mounting the anchor pin into the insertion hole into which the adhesive has been injected,
A pinning method comprising: a groove aligning step of rotating the cap portion of the inserted anchor pin and aligning the camouflage groove of the cap portion and the scratch groove of the scratch tile.

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