JPH0893239A - Pinning engineering and nozzle for pinning engineering - Google Patents

Abstract

PURPOSE: To shorten pinning construction time for repairing of an external wall and to increase adhesive strength of a building frame and a finishing material. CONSTITUTION: A hole 3 is drilled in a finishing material 1 and a building frame 2, the hole 3 is cleaned, and a pin 6 is inserted into a nozzle 5 of an adhesive injection apparatus. This nozzle 5 is inserted deep into the hole 3, and an adhesive 8 is injected from the nozzle 5 from the depth. The pin 6 is discharged from the nozzle 5 by retreating the nozzle 5, and the finishing material 1 and the building frame 2 are repaired by the pin 6 and the adhesive 8. Additionally, the nozzle 5 has an outer diameter smaller than a diameter of the hole 3 drilled on the finishing material 1 and the building frame 2 and has an inner diameter larger than an outer diameter of the pin 6.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pinning method and a nozzle for the pinning method.

2. Description of the Related Art Conventionally, the purpose of the pinning method is shown in FIG.
Epoxy resin 8 and anchor pin 6 as in (a) and (b)
By using skeleton 2 such as concrete and mortar, tile,
This is for adhering the finishing material 1 such as a stone material, and is for preventing peeling or peeling of a portion of the finishing material 1 where the floating is generated. In the pinning method, the repaired part is struck with a hammer, the floating part is checked, the number and arrangement of the anchor pins 6 are determined, a concrete drill is used to perforate the skeleton 2, and the chips adhering to the holes 3 are cleaned with a blower or the like. The nozzle 5 of the injection device is inserted into the hole 3, the epoxy resin 8 is injected into the hole 3, and the anchor pin 6 is inserted into the hole 3 filled with the epoxy resin 8 to finish the surface.

However, as shown in FIG.
As shown in (a) and (b), since the injection of the epoxy resin 8 and the insertion of the anchor pin 6 are separate steps, the work time is long and the work efficiency is low. Further, since the diameter of the hole 3 to be bored is determined by the specifications and cannot be made large, the diameter of the hole 3 is smaller than the outer diameter of the nozzle 5 of the grease gun 4 (injection device), and the nozzle 5 does not go into the depth of the hole 3. Therefore, the epoxy resin 8 can be injected only from the vicinity of the entrance of the hole 3, and FIG.
As shown in (b), the epoxy resin 8 allows air 1
There is a problem that 0 is confined and incomplete filling occurs and the adhesive strength decreases. Further, when the anchor pin 6 is inserted, the epoxy resin 8 may be pushed out by the reaction of the air 10 that is trapped, and the anchor pin 6 may also come out. Repeat the insertion many times. There is also the problem of being complicated. Therefore, it is an object of the present invention to provide a pinning method and a nozzle for the pinning method that shorten the pinning work time for repairing the outer wall and increase the adhesive strength between the body and the finishing material.

According to the present invention, a hole is formed in a finishing material and a body, the hole is cleaned, a pin is inserted into a nozzle of an adhesive injection device, and the nozzle is inserted deep into the hole. , Injecting the adhesive from the back of the hole from the nozzle,
The pinning method is characterized in that the nozzle is retracted to inject the pin together with an adhesive from the nozzle, and the finishing material and the skeleton are repaired with the pin and the adhesive.
The present invention is a nozzle for a pinning method, which has an outer diameter smaller than the diameter of the finishing material and the diameter of the holes drilled in the body and an inner diameter larger than the outer diameter of the pin.

EXAMPLE A pinning method according to an example of the present invention will be described below with reference to FIGS. The mortar 1 as a finishing material and the concrete skeleton 2 are perforated with holes 3, the holes 3 are cleaned to prevent defective adhesion, and a grease gun 4 as an adhesive injection device is prepared and attached to a grease gun (grout gun) 4. The stainless anchor pin 6 is inserted into the nozzle 5, the cloth waste 7 is placed so as to cover the inlet 3a of the hole 3, and the waste 7 is pierced as shown in FIG. Insert until it hits the back wall of hole 3. The anchor pin 6 is the adhesive 8 in the nozzle 5.
It may be inserted in the whole area or partially exposed to the outside. This is because when the nozzle 5 is inserted into the back, the tip of the anchor pin 6 hits the back wall of the hole 3 and is completely inserted into the nozzle 5. Next, the grease gun 4 is operated an appropriate number of times to sequentially inject the epoxy resin 8 as an adhesive from the back of the hole 3 from the nozzle 5, and the epoxy resin 8 is also filled in the floating portion 9 between the mortar 1 and the concrete skeleton 2. Figure 2
The state becomes as shown in (a). Inlet 3 on the inclined surface of nozzle 5
Since the mortar 1 is pressed against a, it is possible to prevent the mortar 1 from rising due to the injection pressure of the epoxy resin 8. Further, since the waste cloth 7 closes the inlet 3a of the hole 3, the floating portion (gap) 9 is also filled with the epoxy resin 8. Next, while operating the grease gun 4 an appropriate number of times, as shown in FIG.
The nozzle 5 is retracted in the direction of arrow B in (a), and the anchor pin 6 and the epoxy resin 8 are injected from the nozzle 5,
The nozzle 5 is pulled out from the inlet 3a. Since the nozzle 5 is retracted even in the reaction of injection, the grease gun 4 does not have to be pulled out much. Finally, the holes 3 are finished with the filling. In this way, the specified amount of the epoxy resin 8 is filled, as shown in FIG. 3B, and the mortar 1 and the concrete skeleton 2 are repaired with the anchor pins 6 and the epoxy resin 8, and the mortar 1 is lifted by floating the mortar 1. Peeling and peeling can be prevented. Further, since the anchor pin 6 and the epoxy resin 8 can be simultaneously filled in one step, the working time can be reduced to half or less. Furthermore, since the epoxy resin 8 can be filled from the back of the hole 3, it is possible to prevent air from being trapped in the back of the hole 3 by the epoxy resin 8 and the adhesive strength is dramatically increased. A pinning method nozzle 5 as shown in FIGS. 4 (a) to 4 (d) is an improvement of the nozzle of FIG. 9 (a). The groove 50a is provided in the
1 is inserted into the groove 50a and caulked by the nozzle body 50 to be connected. A commercially available nozzle can be used, and the nozzle 5 can be formed by simple processing. These can be integrally molded. The tip of the short tube 51 is cut into a taper shape to increase the injection cross section. Therefore, the anchor pin 6 can be easily inserted, the epoxy resin 8 can be quickly filled, the waste 7 can be easily pierced, and the workability is excellent. The short tube 51 is made longer than the length of the anchor pin 6, has an outer diameter 51 a smaller than the diameter of the hole 3, and has an inner diameter 51 b larger than the outer diameter of the anchor pin 6. The diameter of the hole 50e of the nozzle body 50 is gradually reduced from the base end side toward the tip end side, and the inner diameter 50b on the base end side is made larger than the inner diameter 51b of the short pipe 51 to inject the epoxy resin 8. Is facilitating. The inner diameter 50c on the tip side is smaller than the inner diameter 51b of the short tube 51 and smaller than the outer diameter of the anchor pin 6. Therefore, the inner diameter 50c prevents the anchor pin 6 from entering the nozzle body 50, and the anchor pin 6 can be fixed at an appropriate position in the hole 3.
A male screw 50f is provided at the base end of the nozzle body 50 so that it can be screwed into the outlet of the grease gun 4. The outside of the tip of the nozzle body 50 has a tapered cylindrical surface 50.
d, so that it can come into contact with the entrance 3a at an appropriate position. As shown in FIG. 4E, the anchor pin 6 is
A male screw is provided on the entire outer circumference thereof, and the length thereof is shorter than that of the short pipe 51. For example, the anchor pin has a diameter of 4φ and a length of 50 mm, the hole 3 has a diameter of 7φ and a length of 60 mm (the length of the concrete frame 2 is about 30 mm), and the short pipe 51 has an outer diameter of 6φ and an inner diameter of 5φ. It is 60 mm long. FIG. 5 shows a modified example of the nozzle 5, and FIG.
The nozzle 52 in FIG. 5 (b) has a taper of a steep angle in the above embodiment, and the nozzle 53 in FIGS. 5 (c) and 5 (d) has two tapers provided symmetrically in the vertical direction. 8 is easier to come out, and the nozzle 54 of FIGS. 5 (e) and 5 (f) is not completely cut at its tip, but a part of the peripheral surface of the pipe is left and made gentle. In another embodiment of FIG. 6, the nozzle main body 50 and the grease gun 4 of the above-described embodiment are modified by screwing to make the nozzle main body 5 flexible.
A joint 60, a vinyl hose 61, and a joint 62 are interposed between the 0 base end portion and the grease gun 4. In this embodiment, the grease gun 4 is injected in a state where it is substantially orthogonal to the hole 3. Therefore, even if the grease gun 4 is not retracted one by one, only the nozzle 5 can be retracted in the direction of the arrow B with the position of the grease gun 4 left unchanged, and the work becomes easier. Epoxy resin 8 when nozzle 5 retracts
This is because the nozzle 5 retreats due to the recoil of the injection and the flexibility of the vinyl hose 61. Grease gun 4 in Figure 7
The main body 40 and the tubular portion 41 are unscrewed and removed, and the tubular portion 41 is held by hand and the handle 42 is pulled backward along the guide groove 43 and the handle 42 is tilted and locked in the notch 44. The epoxy resin 8 is filled in the tubular portion 41, the tubular portion 41 is attached to the main body 40, the handle 42 is removed from the notch 44, and the lever 4
When 5 is swung, epoxy resin 8 is injected from nozzle 5. The present embodiment has been described above, but it goes without saying that the configuration of the present invention can be appropriately changed without departing from the technical idea of the present invention. In the pinning method of the embodiment, FIGS. 1 (a) (b), 2 (a) (b), 3 (a)
Although the steps proceed in the order of (b), the step of FIG. 2 (a) can be omitted or simplified depending on the relationship of the injection amount of the epoxy resin 8 and the like.

As described above, according to the present invention, a hole is formed in a finishing material and a body, the hole is cleaned, a pin is inserted into a nozzle of an adhesive injection device, and the nozzle is inserted into the hole. Insert it, inject the adhesive from the back of the hole from the nozzle, retract the nozzle and inject the pin with the adhesive from the nozzle, and repair the finishing material and the body with the pin and the adhesive. The time required for pinning work for repairing the outer wall can be reduced to less than half and the adhesive strength between the body and the finishing material can be increased. Further, the nozzle for the pinning method of the present invention has an outer diameter smaller than the diameter of the hole drilled in the finishing material and the body, and has an inner diameter larger than the outer diameter of the pin, so that a great effect can be achieved with a simple structure. It can be obtained at a low cost, can be manufactured by merely improving a commercial product, and a dedicated nozzle can be easily manufactured.

[Brief description of drawings]

FIG. 1A is a partial sectional front view showing an initial stage of inserting a nozzle of a pinning method of the present embodiment, and FIG. 1B is a partial sectional front view showing the same period.

FIG. 2A is a partial cross-sectional front view showing the epoxy resin filling in the pinning method of this embodiment, and FIG. 2B is a partial cross-sectional front view showing the nozzle withdrawal.

FIG. 3A is a partial cross-sectional front view showing nozzle withdrawal in the pinning method of the present embodiment, and FIG. 3B is a partial cross-sectional front view showing a state in which construction by the pinning method is completed.

4A is a front view of a nozzle, FIG. 4B is a front view of the same cross section, FIG. 4C is a right side view of the same, FIG. 4D is a partially enlarged plan view of the same, and FIG. is there.

5A is a front view of a modified example of a pipe, FIG. 5B is a plan view of the same, FIG. 5C is a front view of another modified example of a pipe, FIG. 5D is a plan view of the same, and FIG. The front view of another modification of a pipe, (f) is the same top view.

FIG. 6 is a perspective view showing an operating state of another embodiment.

FIG. 7 is a front view of the grease gun.

FIG. 8A is a sectional front view showing the completion of construction by a conventional pinning method, and FIG. 8B is a right side view of the same.

FIG. 9A is a partial cross-sectional front view showing filling of an epoxy resin by a conventional pinning method, and FIG. 9B is a partial cross-sectional front view showing a state where construction by the same pinning method is completed.

[Explanation of symbols]

 1 Mortar 2 Concrete body 3 Hole 3a Inlet 4 Grease gun 5 Nozzle 6 Anchor pin 7 Wes 8 Epoxy resin 9 Floating part 10 Air 40 Main body 41 Tube part 42 Handle 43 Guide groove 44 Notch 45 Lever 50 Nozzle body 50a Groove 50e Inner surface 50d Hole 50f Male screw 51 Short pipe 51a Outer diameter 51b, 50b, 50c Inner diameter 52-54 Nozzle 61 Vinyl hose 60, 62 Joint

Claims (2)

[Claims] 1. A hole is formed in a finishing material and a body, the hole is cleaned, a pin is inserted into a nozzle of an adhesive injection device, the nozzle is inserted deep into the hole, and the adhesive is injected from the nozzle. The pinning method is characterized by injecting from the back of the hole, retracting the nozzle, injecting the pin together with an adhesive from the nozzle, and repairing the finishing material and the skeleton with the pin and the adhesive. 2. A nozzle for a pinning method, which has an outer diameter smaller than the diameter of the hole drilled in the finishing material and the body and has an inner diameter larger than the outer diameter of the pin.