JPH06173354A - Capule for fixing bolt - Google Patents

Abstract

PURPOSE:To preserve a resin and a hardener for a prolonged term by bonding and sealing a bottomed cylindrical body made of glass by a cover section made of glass and adhesives and forming a vessel. CONSTITUTION:An epoxy acrylate resin 2, with which a hardening accelerator and a polymerization inhibitor are blended, and quartzite 3 are introduced into a bottomed cylindrical body 1 made of brown glass. A colorless glass tube is filled with the powder 4 of benzoyl peroxide diluted with calcium sulfate, and a capillary 5 hermetically plugged with a phenol resin is admitted into the cylinder body 1. A cover section 6 made of brown glass is bonded with adhesives 7 and sealed hermetically to the mouth section of the cylindrical body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt fixing capsule for fixing an anchor bolt to concrete, rock, etc. (hereinafter referred to as a base material).

[0002]

2. Description of the Related Art Conventionally, as a method of fixing an anchor bolt to a base material, the construction is easy and quick, the construction position can be arbitrarily selected, and a uniform and stable fixation force can be obtained. Resin-based capsules are used because of their superiority. As such a capsule, one having a structure shown in FIG. 7 is generally known.

FIG. 7 shows a glass cylinder 1 having a bottom.
An uncured resin 2, an appropriate amount of aggregate 3 mixed therein, and a curing agent capsule 5 in which a curing agent 4 formed of a glass thin tube is enclosed are filled with a cap 6 made of a synthetic resin molded body. It has a sealed construction.
After inserting this capsule into the hole that has been pre-drilled and cleaned in the base material and then hit the bolt from the hole mouth or insert by hitting and stirring, the glass is broken and the resin and curing agent are mixed and cured. Then, the bolt is firmly fixed to the base material.

However, in the capsule having the structure shown in FIG. 7, the synthetic resin cap has a poor gas barrier property and the sealing property between the glass cylinder and the cap is not perfect, so that the volatile components in the resin evaporate and scatter. However, there is a problem in long-term storability such that the resin is thickened and solidified, and the adhesive strength after construction is reduced. Further, when the capsule is applied, the cap is not crushed, so that the resistance to the installation is large, and the cap remains in the cured resin, which may hinder the adhesion of the bolt.

In order to solve these problems, Japanese Patent Laid-Open No.
No. 1-236083, the manufacturing method is disclosed, FIG.
A capsule having a structure shown in is known. In the structure shown in FIG. 8, an uncured resin 2 and an appropriate amount of aggregate 3 mixed with the uncured resin 2 and a curing agent 4 formed by a glass capillary are enclosed in a bottomed glass cylinder 1. The hardened material capsule 5 is filled with the hardened material and the upper end of the glass cylindrical body 6 is sealed.

Since the capsule having the structure shown in FIG. 8 is completely hermetically sealed with glass, the effects of the above-mentioned long-term storability and the cap can be solved.

[0007]

However, in the capsule having the structure shown in FIG. 8, distortion may remain in the glass during fusion sealing, and distortion cracks may occur during manufacturing, transportation and storage. In particular, when a large glass tube having an outer diameter of 30 mm or more is fused and sealed, it is difficult to prevent strain cracking.

[0008] Therefore, when a bolt with a diameter of more than 30 mm is used, there is no suitable capsule, and it is necessary to repeatedly tap a small capsule and pull out the bolt until the specified amount is reached. Bad,
In addition, it causes waste of resin to fall off and pollutes the surrounding area. In addition, since resins are generally flammable and hardeners are also flammable or explosive, there has always been a risk of ignition and explosion due to heat at the time of fusion sealing.

The present invention has been made to solve the above problems. The object of the present invention is to maintain the manufacturability and storability without any change in quality even after long-term storage, easy construction, no cracks during storage during manufacturing, and no risk of flammable explosion during manufacturing. An object is to provide an excellent bolt fixing capsule.

[0010]

In order to solve the above problems, the present invention provides a bolt fixing capsule comprising a curable resin contained in a container and a curing agent for curing the resin. However, the bottomed glass cylinder and the glass lid are sealed by adhesive, or both ends of the bottomless glass cylinder and the glass lid are sealed by adhesive. It is a capsule for fixing a bolt, which is characterized in that

The structure of the capsule of the present invention can be designed in a wide range and is not particularly limited. The container that can be used in the present invention is made of a glass-made cylindrical main body and a lid portion, which is not destroyed during transportation or storage, and can be easily broken into small pieces when the anchor bolt is inserted,
The type, shape, outer diameter, wall thickness, etc. of the glass are not particularly limited. Generally made of soda-lime glass, borosilicate glass, quartz glass, lead glass, etc., cylindrical, with an outer diameter of 6
mm to 60 mm and a wall thickness of about 0.5 mm to 2 mm depending on the outer diameter are used.

The glass cylindrical main body may be a bottomed one that is bottomed at the time of molding, or the same glass member as that used for the lid is bonded to one end of the bottomless glass cylindrical body. It may be adhered using an agent. The adhesive that can be used in the present invention should be one that does not dissolve in the resin filled in the glass container and has an adhesive strength such that the glass body and the lid part do not separate under normal use conditions. Although not particularly limited, those having a short curing time, curing at room temperature and having a small shrinkage factor upon curing are preferable. For example, a two-component synthetic resin adhesive such as an epoxy resin type or a phenol type, a one-component synthetic resin type adhesive such as a cyanoacrylate type or a vinyl acetate type, an emulsion type adhesive such as an acrylic resin type or an EVA type adhesive, These are hot-melt type adhesives such as polyamide type and EVA type, synthetic rubber type adhesives such as chloroprene type and synthetic rubber latex type, and inorganic adhesives such as cement type and gypsum. These adhesives may be added with suitable fillers, fillers and other additives as required.

Any resin can be used in the present invention as long as it can be cured with a curing agent, and unsaturated polyester resins, epoxy acrylate resins, epoxy resins and the like are preferably used. If necessary, a reactive diluent, a polymerization accelerator, a polymerization inhibitor, other additives, and a solvent may be added to these resins. The curing agent that can be used in the present invention is selected according to the type of resin. Organic peroxides are generally used for unsaturated polyester resins and epoxy acrylate resins, and amines or acid anhydrides are generally used for epoxy resins. These curing agents may be disposed inside the glass container, substantially separated from the resin, or may be attached to the outside of the glass container. These curing agents can be used as a mixture with an inorganic or organic diluent.

If necessary, the aggregate or the filler can be mixed with the resin or the curing agent or separated from them. Although these types are not particularly limited, natural crushed stone or artificial stone such as magnesia clinker as the aggregate, calcium carbonate as the filler,
Calcium sulfate, clay, etc. can be used.

[0015]

The present invention will now be described in detail with reference to examples.

[0016]

Example 1 As shown in FIG. 1, first, an epoxy acrylate resin was prepared by adding a curing accelerator and a polymerization inhibitor to a bottomed brown glass cylinder 1 having an outer diameter of 50 mm, a wall thickness of 2.0 mm and a total length of 230 mm. 2 of 190 g and a particle size of 4.0 mm or more 8.
410 g of silica 3 with a diameter of 0 mm or less, and an outer diameter of 15.0 m
m, wall thickness 1.0 mm, length 205 mm, in a colorless glass tube, filled with 17.2 g of benzoyl peroxide powder 4 diluted with calcium sulfate to 40%, and put a thin tube 5 tightly plugged with phenol resin to have an outer diameter. A brown glass lid 6 having a length of 55 mm, a wall thickness of 2.0 mm and a total length of 20 mm was adhered and sealed with an adhesive 1 g. The adhesive 7 is a commercially available two-pack type epoxy resin (Chirageigy Araldite), and is made of a glass cylinder 1a.
The coating was applied to the outer periphery of the mouth portion of the above with a width of about 10 mm, then covered with a lid and cured at room temperature. When the capsules were stored in a room at 20 ° C., there was almost no change in the fluidity of the resin even after about 2 years.

[0017]

[Embodiment 2] As shown in FIG. 2, a bottomed brown glass cylinder 1 has a bottom outer diameter of 50 mm, a wall thickness of 2.0 mm, and a total length of 23.
It is 0 mm and has a structure in which 10 mm from the mouth is narrowed to an outer diameter of 45 mm, and the brown glass lid 6 has an outer diameter of 50 mm, a wall thickness of 2.0 mm, and an overall length of 20 mm. It carried out similarly.

When the capsules were stored in a room at 20 ° C., there was almost no change in the fluidity of the resin even after about 2 years.

[0019]

Third Embodiment As shown in FIG. 3, a bottomed brown glass cylinder 1 has an outer diameter of 50 mm, a wall thickness of 2.0 mm, and an overall length of 230 mm.
The outer diameter is 52 mm, the inner diameter is 46 mm, and the width is 6.
mm disk-shaped structure, the brown glass lid 6 is a circular glass plate having a diameter of 52 mm and a thickness of 2.0 mm, and the adhesive 7 is a commercially available one-pack type cyanoacrylate Resin adhesive (ThreeBond 1783)
Was carried out in the same manner as in Example 1 except that was used.

When the capsules were stored in a room at 20 ° C., there was almost no change in the fluidity of the resin even after about 2 years.

[0021]

[Embodiment 4] As shown in FIG.
190 g of epoxy acrylate resin 2 in which a curing accelerator and a polymerization inhibitor are mixed in a bottomed brown glass cylinder 1 having a thickness of 0 mm, a thickness of 2.0 mm and a total length of 230 mm, and a particle diameter of 4.0 m.
410 g of silica 3 of m or more and 8.0 mm or less is put, the same outer diameter of 53 mm, thickness of 2.0 mm, and total length of 20 mm as in Example 1.
The lid part 6 made of brown glass of No. 1 was adhesively sealed with an adhesive 7.
As the adhesive 7, a commercially available two-pack type epoxy resin (Arbaldite manufactured by Ciba Geigy) was used, and it was applied to the outer periphery of the mouth of the glass cylinder 1 with a width of about 10 mm and cured at room temperature. 18.0 g of a curing agent paste composed of 6 parts by weight of benzoyl peroxide, 4 parts by weight of calcium sulfate, 5 parts by weight of water, and 1 part by weight of SB latex was applied to the outer peripheral portion and the bottom portion of the brown glass cylinder 1 at 60 ° C. And dried for 1 hour.

When the capsules were stored in a room at 20 ° C., there was almost no change in the fluidity of the resin even after about 2 years.

[0023]

Example 5 The same procedure as in Example 1 was carried out except that the resin used was changed from an epoxy acrylate resin to an unsaturated polyester resin (Polymer X527A manufactured by Takeda Chemical Co., Ltd.) consisting of isophthalic acid, fumaric acid, and propylene glycol. When the capsules were stored in a room at 20 ° C., there was almost no change in the fluidity of the resin even after about 2 years.

[0024]

Example 6 As shown in FIG. 5, first, 210 g of a base compound 2 of epoxy resin (Epomer 50 manufactured by Asahi Kasei) is added to a bottomed brown glass cylinder 1 having an outer diameter of 50 mm, a wall thickness of 2.0 mm and a total length of 230 mm. , And an outer diameter of 30 mm, a wall thickness of 2.0 mm, and a length of 240 mm in a colorless glass tube, the amine-based curing agent 4 8
Glass tube 5 filled with 0 g and sealed at a position of 190 mm from the bottom with a burner was put, and the outer diameter was 55 mm and the wall thickness was 2.0 m.
A brown glass lid 6 having a length of 10 mm and a length of 10 mm was adhered and sealed with an adhesive 7. A commercially available two-pack type epoxy resin (Araldite manufactured by Ciba-Geigy) was used as the adhesive 7, and the adhesive was applied to the outer periphery of the mouth of the glass cylinder 1 with a width of about 10 mm and cured at room temperature.

When the capsules were stored in a room at 20 ° C., there was almost no change in the fluidity of the resin even after about 2 years.

[0026]

[Embodiment 7] As shown in FIG. 6, a brown glass cylinder 1 is a bottomless glass tube having an outer diameter of 50 mm, a wall thickness of 2.0 mm and a total length of 230 mm, and one end of this glass tube has an outer diameter of 55 m.
m, wall thickness 2.0 mm, total length 10 mm, brown glass lid 6 which was adhesively sealed with an adhesive 7 was used in place of the bottomed brown glass tube, and all were the same as in Example 1. It was carried out.

When the capsules were stored in a room at 20 ° C., there was almost no change in the fluidity of the resin even after about 2 years.

[0028]

COMPARATIVE EXAMPLE 1 As shown in FIG. 8, a bottomed brown glass tube 1
Had a total length of 320 mm, and was carried out in the same manner as in Example 1 except that the height of 270 mm from the bottom was sealed by a gas burner. When producing this capsule, about 60% had holes or cracks in the welded portion during the heat-sealing.
The rest was stored in a room at 20 ° C. 1
All strain cracks occurred within a month. In addition, since the glass thickness of the fusion-sealed part was extremely thin, the glass was damaged by a slight vibration contact during transportation in a box.

[0029]

The bolt-fixing capsule of the present invention does not change in quality even after being stored for a long period of time, has excellent workability, is free from damage during production and transportation, and is free from flammable explosion during production. It is a capsule for fixing bolts that has good manufacturability and storability.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view showing an embodiment of the present invention.

FIG. 3 is a vertical sectional view showing an embodiment of the present invention.

FIG. 4 is a vertical sectional view showing an embodiment of the present invention.

FIG. 5 is a vertical sectional view showing an embodiment of the present invention.

FIG. 6 is a vertical sectional view showing an embodiment of the present invention.

FIG. 7 is a vertical sectional view showing an example of a conventional technique.

FIG. 8 is a vertical sectional view showing an example of a conventional technique and a comparative example.

[Explanation of symbols]

 1: Glass cylinder 2: Uncured resin 3: Aggregate 4: Curing material 5: Curing agent capsule 6: Lid 7: Adhesive

Claims (2)

[Claims] 1. A bolt fixing capsule comprising a container, a curable resin contained in the container, and a curing agent for curing the resin, wherein the container is a bottomed glass cylinder and a glass container. Capsule for fixing bolts, characterized in that the lid part is adhered and sealed with an adhesive, or the both ends of a bottomless glass cylinder and the glass lid part are respectively adhered and sealed with an adhesive. 2. The bolt fixing capsule according to claim 1, wherein the glass cylinder has an outer diameter of 30 mm or more.