JP5600572B2 - Adhesive injection device and adhesive injection method - Google Patents

Description

  The present invention relates to an adhesive injecting apparatus and an adhesive injecting method for preventing, for example, peeling of tiles on an outer wall of a building.

  Conventionally, in order to prevent a tile from being peeled off, a method has been used in which a resin injection hole is formed in a building, an adhesive resin is injected into the resin injection hole, and an anchor pin is inserted to fix the tile.

  Patent Document 1 discloses an apparatus for inserting an injection nozzle into a resin injection hole to inject an adhesive resin, pulling out the injection nozzle, inserting an anchor pin into the resin injection hole, and fixing the tile to the concrete frame with the anchor pin. The construction method is disclosed.

  In this apparatus and method, when injecting the adhesive resin, the injection nozzle and the insertion are inserted so that the volume of the injection nozzle and the insertion portion inserted into the resin injection hole is substantially equal to the volume of the anchor pin to be inserted later. The size of the portion is designed so that an appropriate amount of adhesive resin remains in the resin injection hole.

JP 2006-307454 A

  However, in this cited document 1, when the injection nozzle, the insertion part, etc. are pulled out after injecting the adhesive resin from the injection nozzle, the adhesive resin adhering to the surface of the injection nozzle, the insertion part, etc. is drawn out together with the injection nozzle, the insertion part, etc. There is a risk of it. In Cited Document 1, the volume of the injection nozzle, the insertion portion, and the like that enter the resin injection hole is determined to be small in advance by expecting that the adhesive resin is drawn out. That is, the amount of adhesive resin injected is larger than the actual required amount.

  However, due to changes in the viscosity of the adhesive resin due to the temperature and changes in the viscosity due to the amount of solvent, the amount of the adhesive resin that adheres to and is pulled out from the injection nozzle, the insertion portion, etc. is not stable, and the adhesion to the resin injection hole is somewhat It tends to occur that the filling amount of the resin is large or small.

  When the amount of the adhesive resin is large, the adhesive resin leaks from the resin injection hole as the anchor pin is inserted. When the amount of the adhesive resin is small, a gap is generated between the resin injection hole and the anchor pin. In the former case, the leaked adhesive resin must be wiped off, resulting in a time and quantity loss. If the wiping is not sufficient, an aesthetic problem remains. In the latter case, there is a problem that the anchoring force of the anchor pin is weakened by the gap.

  An object of the present invention is to provide an adhesive injection device and an adhesive injection method that can accurately and accurately inject an adhesive into a perforated pin insertion hole and can stably fix an anchor pin.

The adhesive injection device according to the present invention for achieving the above object is an adhesive injection device for injecting an adhesive into the pin insertion hole prior to insertion of an anchor pin into a pin insertion hole that has been previously drilled, A main body member having a connecting portion for projecting an injection nozzle consisting only of an injection needle-like capillary tube inserted into the pin insertion hole at the front and connecting an adhesive supply device at the rear , and an entrance portion of the pin insertion hole at the front end have a cylindrical insertion portion to be inserted, the pin and the outer diameter of the cylindrical insertion portion with an outer diameter of the inner diameter and the injection nozzle of the cylindrical insertion portion substantially aligned attachable to pull to the outer circumference of the injection nozzle comprises a inner diameter of the insertion hole from a cap member which is substantially aligned, the sum of the outer volume of the injection nozzle the cylindrical insertion portion, equal the volume of the portion to be inserted into the pin insertion hole of the anchor pin To make it in, characterized by injecting the adhesive through the injection nozzle from the adhesive supply device to said pin insertion hole.

In addition, the adhesive injection method according to the present invention is an adhesive injection method for injecting an adhesive into the pin insertion hole via an injection nozzle prior to insertion of the anchor pin into the pin insertion hole previously drilled, A main body member having the injection nozzle composed only of an injection needle-like thin tube whose outer diameter is substantially matched with the inner diameter of the cylindrical insertion portion of the cap member at the front, and a connecting portion for connecting the adhesive supply device at the rear; A first step of inserting and attaching the injection nozzle into the cylindrical insertion portion whose outer diameter substantially matches the inner diameter of the pin insertion hole, and fitting the cylindrical insertion portion into the inlet portion of the pin insertion hole; It said injection nozzle and defined by an outer volume of said cylindrical insertion portion, the adhesive volume equal amount of portion to be inserted into the pin insertion hole of the anchor pin through the injection nozzle acts the adhesive supply device Previous A second step of injecting into the pin insertion hole, a third step of withdrawing the injection nozzle from the cap member in a state where fitted the cylindrical inserting portion into the pin insertion hole, the cylindrical insert from the pin insertion hole And a fourth step of pulling out the part.

  According to the adhesive injection device and the adhesive injection method according to the present invention, since a predetermined amount of the adhesive without excess or deficiency is accurately injected into the pin insertion hole, when the anchor pin is inserted, the excess adhesive is pinned. It does not overflow from the insertion hole and contaminate the surroundings, or the anchor pin fixing force does not weaken too little.

It is an exploded sectional view of an adhesive injection device. It is a rear view of a cap member. It is sectional drawing of the assembly state of an adhesive agent injection apparatus. It is sectional drawing of the state which inserted the injection nozzle in the pin insertion hole. It is sectional drawing of the state which inject | poured the adhesive agent in the pin insertion hole. It is sectional drawing of the process of extracting an injection nozzle from a pin insertion hole. It is sectional drawing of the state which inject | poured the adhesive agent and extracted the injection | pouring nozzle from the pin insertion hole. It is sectional drawing of the state with which the adhesive agent was filled in the pin insertion hole. It is sectional drawing of the state which inserted the anchor pin in the pin insertion hole. It is sectional drawing of the cap member of a modification. It is a top view.

The present invention will be described in detail based on the embodiments shown in the drawings.
FIG. 1 is an exploded cross-sectional view of an adhesive injection device for injecting an adhesive into the pin insertion hole prior to insertion of an anchor pin into a pre-punched pin insertion hole, and a body member 1 made of a synthetic resin material. It consists of a cap member 2.

  The base portion 1a of the main body member 1 has a substantially cylindrical shape, and a flange portion 1b having a polygonal outer diameter is provided at the rear portion thereof, and a screw portion serving as a connecting portion of an adhesive injection gun described later on the outer periphery of the cylindrical portion at the rear end portion. 1c is provided. Further, the front end of the base portion 1a is provided with a tapered portion 1d having a small diameter toward the front. An injection nozzle 1e made of, for example, a resin-made thin tube protrudes forward from the taper portion 1d in the shape of an injection needle, and the inner hole 1f of the base portion 1a communicates with the inner hole 1g of the injection nozzle 1e. .

  On the other hand, when the substantially cylindrical cap member 2 is inserted over the injection nozzle 1e, the cap member 2 is slidable with a clearance such that there is almost no gap with respect to the outer periphery of the injection nozzle 1e. The cap member 2 includes a holding portion 2a at the rear end and a cylindrical insertion portion 2b having a predetermined length at the front end, and a rear portion of the inner hole 2c of the holding portion 2a is a tapered inner hole 2d that fits with the tapered portion 1d of the main body member 1. It is said that. The outer diameter of the cylindrical insertion portion 2b is substantially equal to the inner diameter of a pin insertion hole described later.

  The diameters of a part of the inner hole 2c of the holding part 2a and the inner hole 2e of the cylindrical insertion part 2b substantially coincide with the outer diameter of the injection nozzle 1e as described above, and these inner holes 2c, 2e and tapered inner hole 2d. An air vent / resin passage groove 2f is provided in the longitudinal direction along the inner surface. As shown in FIG. 2, an upper portion of the holding portion 2a is provided with a cutting portion 2g having a D-cut section, and an air and adhesive overflow hole 2h is provided at the rear end of the cutting portion 2g. It communicates with the overflow hole 2h.

  FIG. 3 is a cross-sectional view of the main body member 1 and the cap member 2 in an assembled state. The outer volume obtained by adding the cylindrical insertion portion 2b and the injection nozzle 1e in front of the cylindrical insertion portion 2b is inserted into a pin insertion hole of an anchor pin described later. The volume of the portion to be processed is almost equal.

  The size of this adhesive injection device varies depending on the size of the anchor pin to be used. For example, when a pin insertion hole having an inner diameter of 5 mm and a depth of 70 mm is drilled in a tile, concrete body, etc., the injection nozzle 1e is The outer diameter is 3 mm, the inner diameter is 2 mm, and the length is 50 mm. The tip of the injection nozzle 1 e is long enough to reach the inner part of the pin insertion hole. The cylindrical insertion portion 2b has an outer diameter of 5 mm and a length of 15 mm, the holding portion 2a has an outer diameter of 8 mm and a length of 20 mm, and the width of the through groove 2f is 1 mm and the depth is 0.5 mm.

  When using this adhesive injection device, as shown in FIG. 4, a pin insertion hole 6 previously drilled in the tile 3, the adhesive layer 4, and the concrete frame 5 by a drill is used. The cap member 2 is attached to the main body member 1, the base portion 1a of the main body member 1 is rotated by holding the flange 1b by hand, and is connected to the adhesive injection gun 7 which is an adhesive supply device by the screw portion 1c. The cap member 2 is moved toward the main body member 1 side, the tapered portion 1d and the tapered inner hole 2d are fitted, and further rotated so that the cutting portion 2g faces upward so that the operator can monitor the overflow hole 2h. To do. Subsequently, the tip of the injection nozzle 1 e is inserted into the pin insertion hole 6, and the cylindrical insertion portion 2 b is inserted into the inlet portion of the pin insertion hole 6.

  Alternatively, the cap member 2 alone is inserted and positioned in the pin insertion hole 6, and then the main body member 1 is capped while the injection nozzle 1 e of the main body member 1 to which the adhesive injection gun 7 is fixed is inserted into the cap member 2. The procedure for fitting the member 2 may be adopted.

  Subsequently, the adhesive injection gun 7 is operated to inject the soft liquid adhesive 8 such as an epoxy resin in the adhesive injection gun 7 into the pin insertion hole 6 through the injection nozzle 1e. At this time, since the outer diameter of the cylindrical insertion portion 2b is substantially the same as the inner diameter of the pin insertion hole 6, the adhesive 8 hardly leaks from between these.

  By the injection of the adhesive 8, the adhesive 8 begins to be filled from the inner part of the pin insertion hole 6 into the space excluding the injection nozzle 1 e and the cylindrical insertion part 2 b of the pin insertion hole 6. 2b is discharged to the outside through the overflow hole 2h of the holding portion 2a through the through groove 2f provided in the holding portion 2a. When the injection is continued and the adhesive 8 is filled in the space, the adhesive 8 overflows from the overflow hole 2h through the through groove 2f as shown in FIG.

  If the operator visually confirms this state, it can be seen that the required amount of the adhesive 8 is filled in the pin insertion hole 6, and therefore the injection of the adhesive 8 by the adhesive injection gun 7 is stopped. The cap member 2 is preferably made of a transparent or translucent resin material so that the movement of the adhesive 8 can be visually observed. However, if the overflow hole 2h is monitored even if it is opaque, the pin of the adhesive 8 is inserted. The filling condition into the hole 6 can be determined.

  Here, as shown in FIG. 6, with the holding portion 2a of the cap member 2 and the cylindrical insertion portion 2b fitted into the inlet portion of the pin insertion hole 6, the injection nozzle 1e is the base portion 1a, and the adhesive injection gun 7 Together with the pin insertion hole 6. At this time, the adhesive 8 adhering to the periphery of the injection nozzle 1 e is scraped down into the pin insertion hole 6 by the tip of the cylindrical insertion portion 2 b, and the adhesive 8 is not pulled out of the pin insertion hole 6. When the injection nozzle 1 e is pulled out from the pin insertion hole 6, the cylindrical insertion portion 2 b of the cap member 2 is fitted into the pin insertion hole 6 as shown in FIG. 7.

  Next, when the cylindrical insertion portion 2b is pulled out from the pin insertion hole 6, as shown in FIG. 8, the necessary amount of the adhesive 8 without excess or deficiency remains in the pin insertion hole 6. That is, a gap corresponding to the sum of the outer volumes of the injection nozzle 1e and the cylindrical insertion portion 2b is generated in the pin insertion hole 6. Since this gap corresponds to the volume of the portion inserted into the pin insertion hole 6 of the anchor pin, an appropriate amount of the adhesive 8 that does not depend on the viscosity or the like is accurately filled without excess or deficiency. Therefore, even if the anchor pin is inserted into the pin insertion hole 6, the adhesive 8 does not leak out or the amount of the adhesive 8 is not insufficient.

  After the injection of the adhesive 8, as shown in FIG. 9, the anchor pin 9 is screwed into the pin insertion hole 6 using a jig, and a series of anchor pin fixing operations is completed. The anchor pin 9 is spirally engraved with a screw, and when the jig 8 is screwed into the adhesive 8, the adhesive 8 enters between the screws. When the adhesive 8 is solidified, the anchor pin 9 is removed. It becomes difficult. Since this anchor pin 9 holds a part of the tile 3, the anchor pin 9 prevents the tile 3 from being peeled off.

  FIG. 10 is a cross-sectional view of a modified example of the cap member 2, and FIG. 11 is a plan view. A plurality of annular ribs 2i are formed on the outer periphery of the cylindrical insertion portion 2b near the holding portion 2a, and the tip of the cylindrical insertion portion 2b is formed into a thin and sharp portion 2j cut obliquely.

  If the inner surface of the pin insertion hole 6 of the tile 3 or the concrete housing 5 is uneven or missing, the adhesive 8 may leak out when the adhesive 8 is injected, so the rib 2 i is attached to the inner surface of the pin insertion hole 6. It is preferable that the adhesive 8 is prevented from leaking by closely contacting. Further, the sharp point 2j at the tip of the cap member 2 is for facilitating insertion when the cap member 2 is inserted into the pin insertion hole 6 alone.

  This adhesive injection device is made disposable by repeated use several times. However, it can be used continuously if it is cleaned after the operation is completed. The material may be made of resin or metal, but if it is made of resin, it can be easily made transparent or translucent, and the depth of the injection nozzle 1e can be reduced by cutting off the tip of the injection nozzle 1e according to the depth of the pin insertion hole 6 or the like. The pin insertion holes 6 having different lengths can be easily used in correspondence. In this case, if the tip of the injection nozzle 1e is cut obliquely like an injection needle, the tip is not blocked even if the tip contacts the abutting portion of the pin insertion hole 6, and the adhesive 8 can be injected. it can.

  In the present invention, it is necessary to make the outer volume of the injection nozzle 1e and the cylindrical insertion portion 2b equal to the volume of the portion inserted into the pin insertion hole 6 of the anchor pin 9. Therefore, when the size of the pin insertion hole 6 and the size of the anchor pin 9 are changed, the injection nozzle 1e and the cylindrical insertion portion 2b corresponding to these must be selected. In this case, it is practical to prepare a cap member 2 in which the size of the outer volume of the cylindrical insertion portion 2b is changed without changing the diameter of the injection nozzle 1e and replace the cap member 2. Is.

  Moreover, although the epoxy resin was used for the adhesive agent 8 of an Example, if it has a function as an adhesive agent, it can be used regardless of organic and inorganic. However, the material of the adhesive injection device needs to be a material having solvent resistance with respect to the adhesive 8 to be used.

  The adhesive injection device of the present invention can also be applied to the pin insertion hole 6 directed toward the opening in the downward or obliquely downward direction. Even if the adhesive 8 is poured into the pin insertion hole 6 facing downward, it usually flows out and becomes insufficient. However, in the present invention, as shown in FIG. 7, immediately after the adhesive 8 is injected, the cylindrical insertion portion 2b is fitted into the inlet portion of the pin insertion hole 6, so that the adhesive 8 exists in this state. If it waits until it hardens | cures to a certain extent, even if it removes the cylindrical insertion part 2b, the adhesive agent 8 will not flow out.

DESCRIPTION OF SYMBOLS 1 Main body member 1a Base 1e Injection nozzle 2 Cap member 2a Holding | maintenance part 2b Cylindrical insertion part 2f Groove 2h Overflow hole 2i Rib 3 Tile 4 Adhesive layer 5 Concrete housing 6 Pin insertion hole 7 Adhesive injection gun 8 Adhesive 9 Anchor pin

Claims (9)

An adhesive injection device that injects an adhesive into the pin insertion hole prior to insertion of an anchor pin into a previously drilled pin insertion hole,
A main body member having a connecting portion for projecting an injection nozzle consisting only of an injection needle-like thin tube to be inserted into the pin insertion hole on the front and connecting an adhesive supply device on the rear ;
It has a cylindrical insertion portion that fits in the inlet portion of the pin insertion hole at the front end, an outer diameter of the inner diameter and the injection nozzle of the cylindrical insertion portion substantially aligned with respect to the outer circumference of said injection nozzle is attached so as to be withdrawal A cap member that substantially matches the outer diameter of the cylindrical insertion portion and the inner diameter of the pin insertion hole ,
The sum of the outer volumes of the injection nozzle and the cylindrical insertion portion is made equal to the volume of the portion of the anchor pin inserted into the pin insertion hole, and the adhesive is supplied from the adhesive supply device through the injection nozzle. An adhesive injection device characterized in that an agent is injected into the pin insertion hole. The injection nozzle can be pulled out from the pin insertion hole in a state where the cylindrical insertion portion is fitted into the inlet portion of the pin insertion hole after injecting adhesive into the pin insertion hole. The adhesive injection device according to claim 1. 3. The adhesive injection according to claim 1, wherein the cap member is provided with a passage groove for passing air and adhering adhesive along the inner hole, and an overflow hole communicating with the passage groove to the outside is provided. apparatus. The adhesive injection device according to any one of claims 1 to 3, wherein the main body member and the cap member are made of a synthetic resin material. The adhesive injection device according to any one of claims 1 to 4 , wherein a plurality of annular ribs are formed on an outer periphery of a cylindrical insertion portion of the cap member. An adhesive injection method for injecting an adhesive into the pin insertion hole via an injection nozzle prior to insertion of the anchor pin into the previously inserted pin insertion hole,
A main body member having the injection nozzle composed only of an injection needle-like thin tube whose outer diameter is substantially matched with the inner diameter of the cylindrical insertion portion of the cap member at the front, and a connecting portion for connecting the adhesive supply device at the rear; A first step of inserting and attaching the injection nozzle into the cylindrical insertion portion whose outer diameter substantially matches the inner diameter of the pin insertion hole, and fitting the cylindrical insertion portion into the inlet portion of the pin insertion hole;
It said injection nozzle and defined by an outer volume of said cylindrical insertion portion, the adhesive volume equal amount of portion to be inserted into the pin insertion hole of the anchor pin through the injection nozzle acts the adhesive supply device A second step of injecting into the pin insertion hole ;
A third step of pulling out the injection nozzle from the cap member in a state where the cylindrical insertion portion is fitted into the pin insertion hole;
And a fourth step of pulling out the cylindrical insertion portion from the pin insertion hole. The adhesive injection according to claim 6 , wherein, in the first step, the cap member inserts the cylindrical insertion portion into an inlet portion of the pin insertion hole in a state where the cap member is inserted through the injection nozzle of the main body member. Method. In the first step, together with the cylindrical insertion portion of the cap member fitted in the inlet portion of the pin insertion hole and then inserting the injection nozzle into the cylinder insertion part, the main body to the rear end of said cap member adhesive injection method as claimed in claim 6, wherein installing an additional member. The cap member is provided with a passage groove and an overflow hole for air venting and passing through the adhesive, and the adhesive by the adhesive supply device in the second step is recognized by visually confirming that the adhesive has overflowed from the overflow hole. The adhesive injection method according to claim 6 , wherein the injection of the adhesive is stopped.

Images