WO2007089010A1

WO2007089010A1 - Adhesive anchor and method for adhesive anchor construction

Info

Publication number: WO2007089010A1
Application number: PCT/JP2007/051882
Authority: WO
Inventors: Yoji Hosokawa; Yasue Yagisawa; Kiyoshi Imai; Toshinobu Suka; Kenji Matsumoto; Kiyokazu Handa; Kenichiro Yamamoto
Original assignee: Sanko Techno Co., Ltd.
Priority date: 2006-02-01
Filing date: 2007-01-30
Publication date: 2007-08-09
Also published as: JP5080281B2; JPWO2007089010A1

Abstract

This invention provides an adhesive anchor that, even when, for example, heating of a base material and cracking have occurred, can stably maintain shear stiffness and tensile proof strength (drawing proof strength). In this adhesive anchor (1), not only the fixing strength of a resin material (9) introduced into a lower hole (111) but also an enlarged part (21) of the leading end of a bolt (2) enlarged by a cone (3) mounted on the leading end of the bolt (2) by driving the bolt (2) in the lower hole (111) exhibit the strength of fixation to the base material (110). There is also provided a method for the construction of the adhesive anchor.

Description

TECHNICAL FIELD The present invention relates to an adhesive anchor and a method for applying an adhesive anchor, and in particular, after construction, it is rigid and resistant to heating and cracking of a base material. The present invention relates to an adhesive anchor that can maintain a stable state, and a method for constructing an adhesive anchor. Background Art. Of the anchors that have been installed afterwards, the so-called adhesive anchors are fixed by a resin material (having adhesiveness) inserted in a hole (lower hole) drilled in the base material. (For example, Patent Document 1).

The general construction procedure for this adhesive anchor is as follows.

(1) Drilling a pilot hole in the base material.

(2) Clean the inside of the pilot hole.

(3) Put the resin material into the prepared hole (usually capsule or injection encapsulating resin material).

(4) Insert bolts into the pilot holes.

(5) Curing resin materials.

Bolts include full thread port and deformed bar steel.

Adhesive anchors are advantageous in terms of cost because they require very few parts. In addition, the required strength of the base material to be constructed is lower than that of metal expansion anchors such as the core rod insertion type. For example, even a fragile base material such as a deteriorated brick body has a hole. If it can be formed, it can be constructed, and if a child can be formed, it can be constructed on almost any base material. Patent Literature 1

JP 2 0 0 5-6 8 6 7 3 Disclosure of the invention

SUMMARY OF THE INVENTION Problems to be Solved by the Invention By the way, the conventional adhesive anchor has the following problems due to the structure that relies on the resin material for the fixing force to the base material.

(a) The rigidity against shearing force (displacement force in the direction perpendicular to the anchor) decreases when high heat is applied to the base material such as the concrete frame where the anchor is installed.

(b) If cracks occur in the base material such as a concrete frame on which the anchor is installed after the anchor is installed, the proof stress such as shearing or pulling (drawing) may be significantly reduced.

In view of the above-described problems, the present invention aims to provide an adhesive anchor that can stably maintain rigidity and strength against heating, cracking, and the like of a base material, and a method for constructing the adhesive anchor. Means for Solving the Problems In order to solve the above problems, the present invention provides the following configurations.

The invention according to claim 1 is an adhesive anchor, and is inserted into a port that is inserted into a pilot hole drilled in a base material, and an expansion portion in which the tip of the bolt is formed in a cylindrical shape. A bonding anchor characterized in that the expansion portion can be expanded by being driven into a cone in contact with the innermost portion of the lower hole and fixed to a base material. ,I will provide a.

The invention according to claim 2 is characterized in that the bolt is made of a material equivalent to JISG 4 10 7 and is driven into a cone in which the port is in contact with the deepest part of the lower hole. 2. The adhesive anchor according to claim 1, wherein the tip of the adhesive anchor expands while removing the hole wall of the pilot hole.

The invention according to claim 3 provides the adhesive bunker according to claim 1 or 2, wherein the tip shape of the cone at the back hole side is formed in a substantially V shape.

The invention according to claim 4 is characterized in that the tip shape of the lower hole deep side of the cone is cut at an angle of approximately 45 degrees with respect to the axial direction from the side of the cone. Alternatively, an adhesive anchor according to 2 is provided.

The invention according to claim 5 provides the adhesive anchor according to any one of claims 1 to 4, further comprising a rigid sleeve that is externally inserted into the bolt and inserted into the prepared hole.

In the invention according to claim 6, grooves for allowing the resin material for bonding an anchor to pass in the axial direction of the rigid sleeve are formed in the outer peripheral surface and the inner peripheral surface of the rigid sleeve. The adhesive anchor according to claim 5 is provided. The invention according to claim 7 provides the adhesive anchor according to claim 6, wherein the groove is formed in a continuous spiral shape that opens at both ends in the axial direction of the rigid sleeve.

The invention according to claim 8 provides the adhesive system according to claim 5, wherein a flange is formed at one end of the rigid sleeve.

The invention according to claim 9 is characterized in that a groove for allowing the resin material for bonding an anchor to pass in the axial direction of the rigid sleeve is formed on the outer peripheral surface and the inner peripheral surface of the rigid sleeve, and the flange. 9. The adhesive anchor according to claim 8, wherein the surface on the side in contact with the base material is uneven.

The invention according to claim 10 is the construction method of the adhesive anchor according to any one of claims 1 to 9, wherein the adhesive anchor is placed in a pilot hole in which a resin material for anchor adhesion is placed. The expansion part expanded by inserting and inserting the port into a cone abutting against the innermost part of the lower hole is fixed to a base material, and by hardening the resin material, Provided is an adhesive anchor construction method characterized in that a rigid sleeve is integrally fixed to the base material.

The invention according to claim 1.1 is the construction method of the adhesive system according to any one of claims 1 or 3 to 9, wherein the container containing the resin material for anchor adhesion is used. Using a power tool that can be rotated and blown into the prepared pilot hole, the container containing the resin material for anchor adhesion is broken and agitated, and the adhesive anchor is inserted. The expansion part, which has been expanded by rotating the electric tool by revolving or hitting, is fixed to the base material on the cone abutted on the inner part, and the resin, the curing of the resin material, the port, the cone, the rigidity A method for constructing an adhesive anchor is provided, wherein a sleeve is fixed to the base material together.

In the invention according to claim 12, after the expansion portion is expanded and fixed to the base material, before the resin material is hardened, the porcela from the rear end side projected from the base material of the porridge The construction method for an adhesive anchor according to claim 10 or 11, wherein an extrapolated rigid sleeve is inserted into the pilot hole. Effects of the Invention According to the present invention, not only the fixing force by the resin material for anchoring but also the expansion portion provided on the bolt is expanded in the pilot hole and fixed to the base material, thereby anchoring the base material. The fixing force can be obtained. As a result, even if anchor anchor strength of the resin material decreases due to the heating of the base material after the anchor construction, or cracks of the base material occur, the anchor's resistance to the base material (such as tensile resistance) Shear rigidity can be maintained stably. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In the figure, reference numeral 110 denotes a concrete frame (base material), and 1111 denotes a pilot hole. FIG. 1 shows an adhesive anchor 1 (hereinafter sometimes abbreviated as “anchor”) according to the present invention.

In FIG. 1, an anchor 1 has a bolt 2 which is a rod-like member inserted into a lower hole 1 1 1 drilled in a base material 1 1 0 and an extended portion in which the tip of the pole 2 is formed in a cylindrical shape The cone 3 is fitted inside the 2 1, and the rigid sleeve 4 is inserted outside the port 2 and inserted into the lower hole 1 1 1.

In addition, a resin material scattering prevention plate 5 described later can be attached to Port 2.

Port 2, cone 3, and rigid sleeve 4 are made of metal such as iron, but the material is not limited to this.

In the illustrated example, the bolt 2 is a full screw bolt, but may be a deformed steel bar, for example.

The extended portion 21 of the porridge 2 is formed in a cylindrical shape having a cone receiving hole 22 inside, and is further divided into a plurality by a split 23. The split 2 3 of the extended portion 2 1 is intended to facilitate expansion of the extended portion 21 when the bolt 2 is driven into the cone 3 as will be described later.

Part of the cone 3 is stored in the cone storage hole 2 2. The cone 3 is attached to the tip of the bolt 2 in a protruding state with a part of the cone 3 fitted in the cone receiving hole 22.

The cone 3 for expanding the expansion portion 21 is spindle-shaped, and when the bolt 2 is driven into the cone 3, the expansion portion 21 is expanded along the outer surface of the cone 3. However, the shape of the cone 3 is not limited to the above-described spindle shape as long as the expansion portion 21 can be expanded.

The cone 3 is shaped like a cone 31 as shown in Fig. 7, and the tip of the lower hole is formed in a V shape, or the cone 3 2 as shown in Fig. 8. It may be cut at an angle of 45 to 45 degrees with respect to the axial direction from the side. Anchor If the resin material for bonding is an injection type (a type in which a thixotropic adhesive material is directly filled into the lower hole), the tip shape of the cone 3 on the inner side of the lower hole is not particularly limited. On the other hand, in the case of a capsule 9 1 encapsulating a resin material for anchoring (a type in which the resin and the curing agent are separately stored in the capsule), the anchor anchor 1 Since the container must be sufficiently broken and agitated when 1 is inserted, the shape shown in Fig. 7 and Fig. 8 is required.

For Port 2, it is preferable to use, for example, a steel material equivalent to JISG 4 10 7 (SNB 7). In this case, as shown in FIG. 2 and FIG. 3, the anchor 1 is inserted into the lower hole 1 1 1 drilled in the base material made of concrete steel 1 10, and the port 2 is inserted into the lower hole 1 1 1. Cone 3 in contact with back 1 1 1 b (hole bottom) 3 When the expansion portion 21 is expanded by driving into the expansion portion 21, the expansion portion 21 expands while the tip of the expansion portion 21 scrapes off the hole wall of the lower hole 11 1 1. As a result, the expanded portion 21 surely bites into the hole wall of the lower hole 11 1 1 and the tensile resistance (pull-out resistance) is improved as compared with the conventional adhesive anchor.

Conventionally, for example, JISG 31 01 (SS 400. Rolled steel for general structural use), which has been widely used for metal expansion anchors such as main body driven anchors, has been widely used. JISG 31 01 (SS 400) The equivalent material is generally inferior in strength to the above-mentioned JISG 41 07 (SNB7) equivalent material. In the case of a metal expansion anchor made of JISG 31 01 (SS 400) equivalent material, when the expansion part is expanded, bending deformation occurs in the expansion part pressed against the hole wall, and the amount of bite into the hole wall is reduced. Not necessarily big. On the other hand, the expanded portion 21 of the port 2 formed of a material equivalent to JISG 4107 (SNB7) is expanded by being driven into the cone 3 so that the tip of the expanded portion 21 is the hole wall of the lower hole 1 1 1. Since it is expanded while scraping off, the expanded portion 21 surely bites into the hole wall of the lower hole 1 1 1, and a high pulling resistance (drawing resistance) can be obtained with certainty.

Needless to say, in addition to the bolt 2, the cone 3 and the rigid sleeve 4 can be made of a material equivalent to JI S G 41 07 (SNB7).

On the outer peripheral surface of the rigid sleeve 4, a continuous spiral groove 41 that opens at both axial ends of the rigid sleeve 4 is formed.

When the rigid sleeve 4 is inserted into the lower hole 1 1 1, the groove 41 allows the surplus resin material 9 pushed out from the lower hole 1 1 1 to pass therethrough and opens the lower hole 1 1 1. Part 1 1 1 Plays out from a. Hereinafter, the groove 41 is also referred to as an excess resin discharge groove.

The groove may be formed not on the outer peripheral surface of the rigid sleeve but on the inner peripheral surface of the rigid sleeve, or may be formed on both the outer peripheral surface and the inner peripheral surface.

Further, the shape of the groove is not limited to the spiral shape described above. The groove only needs to function as a surplus resin discharge groove that allows excess resin material 9 to pass through in the axial direction of the rigid sleeve 4. For example, the groove extends along the axial direction of the rigid sleeve 4. It may be a labyrinth groove.

However, if the groove is formed on the outer peripheral surface of the outer peripheral surface and inner peripheral surface of the rigid sleeve 4, the fixing force between the base material 110 and the anchor 1 made of a resin material (the inner surface of the lower hole (fine The fixing of the resin material 9 with respect to the unevenness) and the fixing force generated by the fixing force of the resin material 9) are preferable, and in terms of improving the fixing force, a spiral shape is preferable. (Spiral groove) is preferable to straight groove.

If a fully threaded port is used as the bolt 2, the resin material inserted into the thread groove 24 on the outer peripheral surface of the port 2 secures the fixing force between the rigid sleeve 4 and port 2. There are also advantages such as. The screw groove 24 can also function as an excess resin discharge groove. Further, the rigid sleeve 4 may have a flange formed at the end as shown in FIGS. FIG. 11 shows a tapered flange 4 2, but the flange is not particularly limited as long as the volume of the end of the rigid sleeve 4 increases. As shown in Fig. 1 3, the flange 4 2 shown in Fig. 1 1 is inserted into the opening 1 1 1 a of the lower hole 1 1 1 after insertion into the lower hole 1 1 1 of the rigid sleeve 4. It becomes embedded. The vicinity of the open end of the rigid sleeve 4 is deformed into an ellipse when a large bending or shearing force is applied. Therefore, a flange 4 1 is provided on the outer periphery of the end of the rigid sleeve 4 that abuts the concrete opening 1 1 1 1 a where bending and shearing force acts intensively. By making the height higher, the shear rigidity and bending resistance of the adhesive anchor 1 can be further improved.

When the rigid sleeve 4 is formed with a large flat flange 4 3 in the radial direction as shown in Fig. 12, the rigidity and strength of the rigid sleeve near the opening 1 1 1 a are significantly increased. As shown in FIG. 14, when the rigid sleeve 4 is inserted, excess resin overflowing from the opening 1 1 1 a is filled between the flange 4 3 and the surface of the concrete base material 1 1 0 a. Adhesive force due to resin is also generated. As a result, the force acting on the adhesive anchor 1 as a bending or shearing force is transmitted while being distributed to the wide concrete part, which can greatly improve performance. Also, forming irregularities such as grooves on the back surface of the flange (surface on the base material side) will lead to further improvement in adhesion.

In FIG. 1, reference numeral 5 denotes a resin material scattering prevention plate.

The resin material scattering prevention plate 5 has a ring shape, and is provided by inserting a hole 51 passing through the center portion through the bolt 2 and extrapolating the bolt 2 as shown in FIGS. This resin material scattering prevention plate 5 is formed from the surface of the base material 1 1 0 1 1 0 a from the opening side of the lower hole 1 1 1 1 1 1 a (in detail, inside the porch 2 and the lower hole 1 1 1 For example, when the bolt 2 is driven into the lower hole 1 1 1, the excess resin material 9 that overflows from the lower hole 1 1 1 is scattered. To prevent. Next, an example of the construction method of the anchor 1 described above will be described with reference to FIGS.

2 to 6 exemplify the case where the concrete body is constructed by inserting the bolt 2 into the pilot hole 11 1 1 drilled from the side surface, but the present invention is not limited to this, for example, Needless to say, it can also be applied to floor (construction from the floor) and ceiling (construction from the bottom of the ceiling).

First, the following steps (1) to (4) are performed.

(1) Drilling a pilot hole in the base material.

(2) Clean the inside of the pilot hole.

(3) Put the resin material into the prepared hole.

Here, the step of putting the resin material into the lower hole 1 1 1 in (3) is, for example, putting a capsule enclosing the resin material into the lower hole 1 1 1, and injecting by injection. Which method can be adopted. Add a sufficient amount of resin material to the pilot holes 1 1 1 so that the resin is evenly distributed throughout the pilot holes 1 1 1.

Next, when the resin material is injected by injection, as shown in Fig. 2, port 2 having cone 3 attached to the tip (hereinafter also referred to as port 2A with cone) is inserted into pilot hole 1 1 1 As shown in Fig. 3, the port 2 is struck from the rear end side (opposite to the front end to which the cone 3 is attached) using a tool such as a hammer 8 and the like. The cone 3 is brought into contact with the innermost part 1 1 1 b (the bottom end in FIG. 3) and the expansion part 2 1 is driven into the cone 3 to expand it (anchor insertion 'driving process). As a result, the expanded portion 2 1 driven and expanded into the cone 3 bites into the hole wall of the lower hole 1 1 1, and the port 2 is fixed to the base material 1 1 0.

Also, when a capsule enclosing resin material (1) is inserted into the pilot hole 1 1 1 as shown in Fig. 9, use a cone 3 with the shape shown in Fig. 7 or Fig. 8, While rotating and hitting the adhesive anchor with an electric power tool, the capsule (the type in which the resin and the hardener are separately stored in the capsule) is broken and the pilot hole 1 1 Drive in until the innermost part 1 1 1 b of 1 is reached, and then continue to apply the rotational impact of the power tool and drive the expansion part 21 into the cone 3 as shown in FIG. As a result, in the same way as in the case of c: cion, the expanded part 2 1 driven and expanded into the cone 3 bites into the hole wall of the lower hole 1 1 1 and the bolt 2 is fixed to the base material 1 1 0. .

In FIG. 2, the port 2 A with cone inserted into the pilot hole 1 1 1 is obtained by extrapolating the resin material scattering prevention plate 5 to the bolt 2. As a result, even if the resin material 9 jumps out from the pilot hole 11 1 1 when the bolt 2 is driven in, the resin material scattering prevention plate 5 can prevent the resin material 9 from scattering.

However, at this stage, the rigid sleeve 4 should not be put on the bolt 2. 2 and 3, reference numeral 25 denotes a marking provided on the outer periphery of the bolt 2 by, for example, coloring.

This marking 25 is the amount of port 2 driven into the pilot hole 1 1 1 (embedding depth) Force Expansion part 2 “I expansion of port 2 base material 1 10 due to expansion of I is sufficiently secured At the position where it reaches the surface 1 1 0 a of the base material 1 1 0. When the porch 2 is driven into the pilot hole 1 1 1 When the base material 1 1 0 is reached, the necessary embedding length is secured, and the fixing force due to the expansion of the expanded portion 2 1 is sufficiently secured.

When this marking 25 is located away from the base material surface 1 1 0 a, the distance between the marking 2 5 and the base material surface 1 1 0 a is exactly the same as that of the pilot hole 1 1 1 It will indicate the remaining driving amount of Vol 2

The resin material scattering prevention plate 5 and the marking 25 are not necessarily essential and can be omitted.

Needless to say, the pilot hole 1 1 1 is previously formed with a drilling depth that secures the required embedding length of port 2. T JP2007 / 051882

8 However, the drilling depth of the pilot hole 1 1 1 can be expanded when the required embedding length is secured when the port 2 marking 2 5 reaches the base metal 1 1 0 by driving into the pilot hole 1 1 1. Set so that the fixing force due to the expansion of part 21 is sufficiently secured. Next, remove the resin material scattering prevention plate 5 from the porcelain 2 and, as shown in Fig. 4, protrude from the pilot hole 1 1 1 to the outside of the base material 1 1 0 (surface 1 1 O a side). From the rear end side, the rigid sleeve 4 is extrapolated to the port 2, and the rigid sleeve 4 is pushed into the lower hole 11 and inserted. The rigid sleeve 4 is pushed into the lower hole 1 1 1 by, for example, using a driving jig 6 (rigid sleeve for driving) and hitting with a tool such as a hammer-8.

However, the rigid sleeve 4 is preferably housed in a position separated from the extended portion 21 of the anchor 1, for example, in the opening 1 1 1 1 a of the lower hole 1 1 1, in terms of improving the shear strength.

Needless to say, the process of inserting the rigid sleeve 4 into the prepared hole 1 1 1 (sleeve insertion process) after the expansion of the expansion part 21 is performed before the resin material is cured. Needless to say, the pilot hole 1 1 1 is formed so as to secure an inner diameter into which the rigid sleeve 4 can be inserted. However, in terms of securing shear rigidity, the inner diameter of the lower hole 1 1 1 is set so that the rigid sleeve 4 press-fitted into the lower hole 1 1 1 is fixed by the pressure contact with the inner surface of the lower hole 1 1 1. 4 It is preferable to adjust according to the outer diameter.

When the rigid sleeve 4 is inserted into the lower hole 1 1 1, the excess resin material 9 in the lower hole 1 1 1 passes through the groove 4 “I of the rigid sleeve 4 to the outside of the lower hole 1 1 1. That is, it overflows out of the base material 110. This makes it possible to smoothly push the rigid sleeve 4 into the pilot hole 11 "1.

When the rigid sleeve 4 has been pushed into the lower hole 1 1 1, as shown in FIG. 5, the opening of the lower hole 1 1 1 on the base material surface 1 1 0 a 1 1 1 a and the vicinity thereof By removing the resin material 9 (excess resin 9 1), the construction is completed (Fig. 6). In FIG. 5, reference numeral 7 is a jig (scraper) for scraping excess resin.

When the resin material 9 in the lower hole 1 1 1 is cured, the anchor (port 2 A with cone and rigid sleeve 4) is firmly fixed to the base material 110 by the resin material 9. Here, until the resin material 9 is cured, the anchor 1 is supported on the center axis of the lower hole 1 1 1 by the expanded portion 2 1 expanded in the lower hole 1 1 1. At the same time, the rigid sleeve 4 accommodated in the lower hole 1 1 1 is also supported on the central axis of the lower hole 1 1 1.

That is, the extension portion 21 and the rigid sleeve 4 perform a function (posture maintenance function) for supporting the anchor 1 on the central axis of the pilot hole 11 1.

For this reason, even when anchor 1 is installed sideways as shown in Fig. 5 etc., anchor 1 is less likely to be eccentric in pilot hole 1 1 1, and anchor 1 is made of resin material 9. It is also easy to fix so that it is on the central axis of the lower hole 1 1 1. In addition, the prevention of the eccentricity of the anchor 1 in the pilot hole 1 1 1 can be effectively obtained even when the expanded portion 2 1 alone, that is, the rigid sleeve 4 is not provided. The use of the rigid sleeve 4 ensures the effect of preventing eccentricity.

According to the anchor 1 and its construction method, the fixing force (the fixing of the resin material 9 to the inner surface of the lower hole (the presence of fine irregularities) is engaged) and the adhesive strength of the resin material 9 The anchor 1 is fixed to the base material 1 1 0 by the mechanical fixing force to the base material 1 10 due to the expansion of the expansion part 2 1.

For this reason, after completion of anchor 1 construction on the base material 1 1 0, the base material 1 1 0 is heated to a high temperature, causing carbonization of the resin material and cracking of the base material 1 1 0. Even if the anchoring force of the anchor 1 due to the resin material 9 is reduced, the shearing rigidity (the anchor 1's mother) depends on the anchoring force of the expansion part 2 1 fixed to the base material 110 and the rigidity of the rigid sleeve 4. The rear end portion protruding from the material 110 can sufficiently secure the resistance against displacement force acting in the direction perpendicular to the anchor 1 and the resistance (tensile resistance, etc.).

In addition, in the construction work of anchor 1, even before the resin material 9 in the pilot hole 1 1 1 is completely cured, that is, before the resin material develops strength, the anchoring force of the expansion part 2 1 causes shearing. Rigidity and resistance (such as tension resistance) can be secured. For this reason, Anchor 1 can be used to fix the attachment immediately after the completion of construction. In particular, with conventional adhesive anchors, it was impossible until the curing time for the strength of the resin material to develop. Since it can be used immediately to fix the fixture, the work time from anchor application to fixture fixture can be greatly reduced.

The extension part 21 and the rigid sleeve 4 contribute to an improvement in shear rigidity.

Since the metal extension 21 and the rigid sleeve 4 have higher rigidity than the resin material 9, the deformation of the anchor 1 against the bending or shearing force acting on the anchor 1 after completion of construction 1 Displacement within 1 can be suppressed, resulting in improved shear rigidity and bending strength.

Shear rigidity and bending resistance must be improved compared to conventional adhesive anchors that are fixed only with the strength of the resin material even when only the expansion part 21 is used, that is, when the rigid sleeve 4 is not used. Can do.

If the rigid sleeve 4 is also used, the shearing force and bending stress acting on the anchor 1 will be efficiently distributed and supported by the expansion portion 21 and the rigid sleeve 4, and the anchor 1 (in detail, Deformation of port 2) can be reliably suppressed, and high shear rigidity and bending resistance can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an adhesive anchor according to an embodiment of the present invention. FIG. 2 is a view showing a state in which the anchor of FIG. 1 is inserted into the pilot hole of the base material.

Fig. 3 is a view showing a state where the expanded portion of the anchor in Fig. 2 is expanded and the port is fixed to the base material.

4 is a view showing a state where a rigid sleeve is put on the anchor of FIG.

5 is a view showing a state where the insertion into the prepared hole of the rigid sleeve of FIG. 4 is completed. Fig. 6 is a diagram showing the construction completion state of the anchor shown in Fig. 1.

7 is a diagram showing another shape of the cone of FIG.

Fig. 8 is a diagram showing a cone having a different shape from that of Figs. 1 and 7. FIG. 9 is a view showing a state where a capsule encapsulating a resin material is inserted into the lower hole. FIG. 10 is a view showing a state in which the expanded portion of the anchor is expanded using an electric tool and the port is fixed to the base material.

FIG. 11 is a view showing another example of the rigid sleeve of FIG.

Fig. 1 2 Fig. 1 shows the anchor construction completion state using the rigid sleeve of Fig. 11.

Fig. 1 3 is a diagram showing a rigid sleeve of another shape different from the rigid sleeve of Fig. 4 and Fig. 11.

Fig. 4 Fig. 4 is a diagram showing the state of completion of anchor construction using the rigid sleeve of Fig. 13. Explanation of symbols

1… Adhesive anchor finish, 2… Pol®, 2 1… Expansion part, 2 5… Marking, 3, 3 1, 3 2… Cone, 4… Rigid sleeve, 4 1… Groove (excess resin drain groove), 4 2, 4 3 ... Flange, 5 ... Resin material scattering prevention plate, 9 ... Resin material, 9 1 ... Capsule, 1 1 0 ... Base material, 1 1 1 ... Pilot hole, 1 1 1 a ... Opening, 1 1 1 b… The deepest part (hole bottom).

Claims

The scope of the claims

1. Adhesive anchor, which has a bolt inserted into a pilot hole drilled in a base material, and a cone fitted inside an expansion portion formed in a cylindrical shape at the tip of the pole. And the said expansion | extension part is expanded by driving in the cone which contact | abutted the said port to the innermost part of the lower hole, and can be made to adhere to a preform | base_material.

2. The porcelain is formed of a material equivalent to JISG 4 10 7 and the expansion portion has its tip force << by driving the port into a cone that is in contact with the innermost part of the lower hole. The adhesive anchor according to claim 1, wherein the hole wall of the lower hole is expanded while being scraped off.

3. The adhesive anchor according to claim 1 or 2, wherein a distal end shape of the cone lower L side of the cone is substantially V-shaped.

4. The tip shape of the cone at the back side of the lower hole is biased at an angle of approximately 45 degrees with respect to the axial direction from the side of the cone. Adhesive anchor.

5. The adhesive anchor according to any one of claims 1 to 4, further comprising a rigid sleeve that is externally inserted into the bolt and inserted into the prepared hole.

6. A groove for allowing an anchoring resin material to pass in the axial direction of the rigid sleeve is formed in the outer peripheral surface and the Z or inner peripheral surface of the rigid sleeve. Adhesive system anchor.

7. The adhesive anchor according to claim 6, wherein the groove is formed in a continuous spiral shape that opens at both ends of the rigid sleeve in the axial direction.

8. The adhesive anchor according to claim 5, wherein a flange is formed at one end of the rigid sleeve.

9. Grooves are formed in the outer peripheral surface and Z or inner peripheral surface of the rigid sleeve for allowing the anchor-adhesive resin material to pass in the axial direction of the rigid sleeve, and contact the base material of the flange. The adhesive anchor according to claim 9, wherein unevenness is provided on the side surface.

10. A method for constructing an adhesive anchor according to any one of claims 1 to 9, wherein the adhesive anchor is inserted into a pilot hole containing a resin material for anchor adhesion, and the port is provided as a pilot hole. The expansion part expanded by driving into a cone in contact with the innermost part is fixed to a base material, and by hardening the resin material, the port, the cone, A method for constructing an adhesive anchor, wherein the rigid sleeve is integrally fixed to the base material.

1 1. A method for constructing an adhesive anchor according to any one of claims 1 or 3 to 9, wherein a rotation or impact is applied to a pilot hole into which a container containing a resin material for anchor adhesion is inserted. Using a power tool, break the container containing the resin material for anchor adhesion, insert the adhesive anchor while stirring, and attach the port to the deepest part of the lower hole. The expansion portion expanded by driving by rotation or striking is fixed to a base material, and the bolt, the cone, and the rigid sleeve are integrally fixed to the base material by curing the resin material. A method for constructing an adhesive anchor.

1 2. After the expansion portion is expanded and fixed to the base material, before the resin material is hardened, the rigid sleeve that is externally attached to the bolt from the rear end side protruding from the base material of the ball cage is The method for constructing an adhesive anchor according to claim 10 or 11, characterized by being inserted into a pilot hole.