JPH03122335A - Capsule for anchor fixing - Google Patents

Abstract

PURPOSE:To fix an anchor firmly with simple operation by pushing aggregate, etc., within a compartment on the base side into the compartment on the top side by driving of an anchor, and then breaking a hardener capsule so as to mix unhardened resin with a hardener. CONSTITUTION:The inside of a capsule is partitioned into two chambers in the longitudinal direction by a partition plate 4, and in a compartment 5 on the top side, unhardened resin 7 and many hardener capsules 9 and 9, and in the compartment 6 on the base side, aggregate 10, are filled. And this capsule for anchor fixing is inserted in a capsule insertion hole 12, and an anchor 13 is driven from the base side. As a result, the capsule main body 1 is broken, and the aggregate 10 within the compartment on the base side and the broken pieces of the partition plate 4 are pushed in the compartment 5 on the top side, and they break the hardener capsules 9 and 9. Furthermore, the hardener 8 and unhardened resin 7 mix with each other, and those fill the gap between the anchor 13 and the capsule insertion hole 12 together with the aggregate 10 and the broken pieces of capsule main body, etc., and with the passage of time, the unhardened resin 7 hardens and fixes the anchor 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an anchor fixing capsule used when attaching a building material to a base material such as concrete or rock.

[Conventional technology] When attaching various construction materials to concrete, rock, or other base materials, construction is quick and easy, regardless of the base material or installation location, uniform and stable adhesion force can be obtained, and earthquake resistance is achieved. Resin anchors are often used because of their excellent durability.

Such a resin anchor is made by separating an anchor such as an anchor bolt or a deformed steel bar from an uncured resin and its curing agent.
It consists of an anchor fixing capsule which is enclosed together with aggregate in a cylindrical container if necessary.The anchor fixing capsule is inserted into a drilled hole drilled in the base material, and the anchor is fixed from above. Insert the end and apply impact, vibration, rotation, etc. to destroy the capsule for fixing the anchor, mix the uncured resin sealed inside, its curing agent and aggregate, and harden the uncured resin. This is to fix the anchor to the base material.

As a capsule for fixing an anchor used in such a resin anchor, one having a structure shown in FIG. 9 is generally known.

This anchor fixing capsule is made of a cylindrical capsule body la made of a glass material or the like, and has an uncured resin 2a and an appropriate amount of aggregate 3a mixed therein, and is further formed of a glass capillary and has an uncured resin 2a inside. A hardening agent capsule 5a containing a hardening agent 4a is filled and sealed.

[Problems to be Solved by the Invention] However, the conventional anchor fixing capsule has a problem that the aggregate 3
a and uncured resin 2a are distributed over the entire area inside the capsule body 1a, and during the fixing work, the aggregate 3a located near the base end and the uncured resin are 2a scatters from the gap between the opening of the drilled hole and the anchor, resulting in a decrease in the pull-out strength.

Further, in the conventional anchor fixing capsule, the curing agent capsule 5a is constituted by a single body having a length extending over the entire area inside the capsule main body la.

Therefore, during fixing work, simply inserting the anchor will hardly mix the hardening agent 4a filled inside the broken hardening agent capsule 5a with the uncured resin 2a, so the anchor must be attached to a hammer drill or the like. Another problem is that the uncured adhesive 2a and the curing agent 4a must be thoroughly mixed by vibration, rotation, etc., making the fixing work difficult.

Furthermore, the uncured resin 2a is generally a synthetic resin such as an uncured polyester resin or epoxy resin that exhibits extremely high viscosity and has a high specific gravity of about 1.5 to 2.0. Therefore, if the aggregate 3a is filled first and the uncured resin 2a is poured over it, or if the uncured resin 2a is filled first and the aggregate 3a is poured over it, the aggregate 3a and the uncured resin 2a are There are also problems in manufacturing, such as filling the capsule body 1a into the capsule body la by any means, such as premixing and filling the capsule body la, which is extremely difficult and takes a long time.

The present invention has been made to solve many of these problems, and it not only makes it possible to perform the fixing work by simply driving the anchor, but also allows the anchor to be placed near the proximal end of the capsule body during the fixing work. To provide a capsule for fixing an anchor that does not scatter uncured resin or aggregate, does not pollute the surrounding area, can be fixed with sufficient pull-out strength, and is easy to manufacture.

[Means for Solving the Problems] In the present invention, the inside of a sealed capsule body is partitioned into two chambers in the longitudinal direction by a partition plate, and the compartment on the tip side contains uncured resin and the uncured resin. A means for solving the above-mentioned problem is to have a configuration in which a plurality of hardening agent capsules each containing a hardening agent of a hardening resin are filled with aggregate in the compartments on the proximal end thereof.

[Function] The fixed end of the anchor driven from the proximal side of the anchor-fixing capsule inserted into the capsule insertion hole drilled in the base material destroys the capsule body and fills the compartment on the proximal side. The broken aggregate and fragments of the broken partition plate are pushed into the distal compartment, and these and the fragments of the broken capsule body destroy the hardener capsule filled in the distal compartment. , the curing agent filled inside mixes with the surrounding uncured resin. In addition, the aggregate pressed against the bottom of the capsule insertion hole by inserting the anchor,
The uncured resin uniformly mixed with the broken partition plate, fragments of the broken capsule body, and hardening agent fills the gap formed between the anchor and the capsule insertion hole, and after a predetermined period of time, the uncured resin fills the gap between the anchor and the capsule insertion hole. It hardens and fixes the anchor.

[Example] Next, embodiments of the present invention will be described based on the drawings.

FIGS. 1 and 2 show an embodiment of the present invention, in which a capsule body 1 is formed of a glass material or the like into a cylindrical shape with a bottom, similar to the conventional capsule for fixing an anchor, and is located on the proximal side. A cap 3 is fitted into the opening 2 and sealed.

Further, the capsule body 1 is longitudinally divided into two compartments, a compartment 5 on the distal end side and a compartment 6 on the proximal end side, by a partition plate 4 disposed inside.

In the compartment 5 on the tip side, an uncured resin 7 made of a synthetic resin such as an uncured polyester resin or an epoxy resin, and a curing agent 8 for the uncured resin 7 such as benzoyl peroxide are placed in a short glass tube. A large number of hermetically sealed hardening agent capsules 9 are filled, and the compartments 6 on the proximal end side facing each other with the partition plate 4 in between are filled with aggregate 10.

In this embodiment, as shown in FIG. 3, the partition plate 4 has a configuration in which it is made of, for example, glass and is formed into a net with a mesh size that makes it impossible for the aggregate 10 to pass through. It is possible to prevent the aggregate 10 filled into the compartment 5 from entering the compartment 5, and it is stable against the uncured resin 7, and can be easily crushed by the impact of anchor driving. Of course, other configurations may be used, such as one in which a large number of cuts 42 are formed on the surface of a thin ceramic plate 41 as shown in FIG. 4. Further, the volume ratio between the compartment chamber 5 and the compartment chamber 6, that is, the filling ratio of the uncured resin 7 and the aggregate 10, is determined as appropriate depending on the anchor to be fixed, the base material, etc., as in the conventional anchor fixing capsule.

In the anchor fixing capsule having such a structure, first, a predetermined number of hardening agent capsules 9 are placed in the capsule body 1 with the opening 2 open, and a predetermined amount of uncured resin 7 is poured over the capsules. Next, insert the partition plate 4 and uncured resin 7.
The compartment chamber 5 on the tip side is located on the 0 surface and extends in the longitudinal direction.
It is manufactured by forming a compartment 6 on the proximal end side, charging a predetermined amount of aggregate lO into the compartment 6, and then capping and sealing the opening 2 with a cap 3. Therefore, it is not necessary to fill the uncured resin 9 and the aggregate 10 in a mixed state as in conventional anchor fixing capsules, and it is possible to manufacture the capsule very easily and quickly.

In addition, since the uncured resin 7 used in the present invention generally has a large specific gravity, even if the partition plate 4 is simply placed on the injected uncured resin 7, the partition plate 4 will be able to separate the uncured resin 7 and its It stays at a predetermined position without moving because it is sandwiched between the aggregate 10 thrown in above, but for example, by making the diameter of the compartment 5 on the distal end slightly smaller than the diameter of the compartment 6 on the proximal end, both can be separated. A locking stepped portion of the partition plate 4 may be formed in between, and in this case, movement of the partition plate 4 is reliably prevented, and it can be used as a guideline for the amount of uncured resin 7 to be injected during manufacturing. As a result, a predetermined amount can be injected without weighing, making manufacturing easier and faster. Furthermore, when filling the compartment 5 on the distal end side with the uncured resin 7 and the cured capsules 9, by repeatedly filling the cured capsules 9 and the uncured resin 7 in stages, the cured capsules 9 are filled with the uncured resin 7. They can be arranged in a uniformly distributed state without shifting in the longitudinal direction.

Next, a method of using the anchor fixing capsule A shown in the above embodiment will be explained.

To use the anchor fixing capsule A, first, as shown in FIG. 5, the anchor fixing capsule A is inserted into the capsule insertion hole 12 formed in the base material 11 in the same manner as in the conventional case. Then, when the fixed end portion 14 of the anchor 13 to be fixed is brought into contact with the anchor 13 from above and the proximal end of the anchor 13 is struck with a hammer or the like (not shown), the fixed end portion 14 destroys the capsule body l and the proximal end The aggregate IO filled in the side compartment 6 and the broken pieces of the partition plate 4 are pushed into the tip side compartment 5, and these and the pieces of the broken capsule body 1 are pushed into the tip. The curing agent capsule 9 filled in the side compartment 5 is destroyed, and the cured M8 filled therein mixes with the surrounding uncured resin 7.

In addition, as the anchor 13 is pushed deeply, the aggregate 1O5 pressed against the bottom of the capsule insertion hole 12, the fragments of the partition plate 4, the fragments of the capsule body 1, and the uncured resin 7 with the hardening agent 8 mixed therein. anchor 13 while blending with each other.
The uncured resin 7 hardens after a predetermined period of time, and the anchor 13 becomes the base material 11.
is fixed to.

In this embodiment, by simply driving the anchor 13, the uncured resin 7, the hardening agent 8, the aggregate 10, the capsule body 1, and the fragments of the partition plate 4 are uniformly mixed, and the anchor 13 is fixed with a predetermined pull-out strength. be able to.

Further, FIGS. 6 to 8 show different embodiments of the present invention. In the embodiment shown in FIG. On the other hand, they are formed from a stable synthetic resin or the like into thin, small-diameter spheres or elliptical particles, and a large number of them are dispersed within the uncured resin 7. Therefore, compared to the above-mentioned embodiments having the hardening agent capsules 9 in the form of short thin tubes, this embodiment has the advantage that the contact ratio between the uncured resin 7 and the hardening agent 8 can be increased and the fixing time can be shortened. The embodiment shown in FIG. 7 has a general structure that is almost the same as the embodiment shown in FIG. They are formed at appropriate intervals in the horizontal direction. Therefore, when the anchor is driven in, the driving force is concentrated in the annular recess 16, and the capsule body 1 is very easily broken into many pieces from this part, so that the uncured resin 7 and the hardening agent 8 are very well formed. In addition to being mixed with other materials, it can also enhance its effectiveness as an aggregate. Further, in the embodiment shown in FIG. 8, the partition plate 4 of the capsule body 1 is formed of a glass material.
It is formed by two parts that are melted and closed. Therefore, since the uncured resin 7 is completely sealed, it has the advantage that it can be stored for a long period of time.

In the above embodiment, the capsule body 1 made of a glass material or the like was used, but the same method can be applied to an anchor fixing capsule having a capsule body of other structure such as one made of a synthetic resin film or the like. It goes without saying that it can be done.

[Effects of the Invention] The present invention is characterized in that the capsule body is destroyed by the driven anchor, and the aggregate filled in the compartment on the proximal side and the fragments of the broken partition plate are destroyed in the compartment on the distal side. The structure is such that the hardening agent capsules are destroyed and the hardening agent filled inside is mixed with the surrounding uncured resin. Furthermore, a large number of hardened capsules are dispersed within the uncured resin. By having a structure that increases the contact rate between the cured resin and the curing agent, not only can sufficient pull-out strength be obtained with the simple operation of driving an anchor, but also it is possible to obtain sufficient pull-out strength with the simple operation of driving an anchor. There is no scattering of the aggregate, etc., which does not contaminate the surrounding area, and there is no decrease in the pull-out strength.In addition, the uncured resin and the aggregate are separated and sealed within the capsule body. Therefore, it can be manufactured very easily and efficiently.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view showing one embodiment of the present invention, FIG. 2 is a vertical sectional view of FIG. 1, FIG. 3 is a perspective view showing one embodiment of the partition plate, and FIG. The figure is a perspective view showing different embodiments of the partition plate, FIG. 5 is an explanatory diagram showing a part of the usage state of the embodiment shown in FIG. 1, and FIGS. 6 and 7 are different embodiments of the present invention. FIG. 8 is a longitudinal cross-sectional view showing a further different embodiment, and FIG. 9 is a partially cut-away front view showing a conventional example. Figure 1 Figure 2■...Capsule body, 4...Partition plate, 5, 6...
compartment, 7... uncured resin, 8... curing agent, 9...
- Hardening agent capsule, 10... Aggregate, A... Anchor fixing capsule. Figure 5

Claims (1)

[Claims] The inside of the sealed capsule body (1) is a partition plate (4)
It is divided into two chambers in the longitudinal direction, and the compartment (5) on the tip side contains a large number of sealed chambers containing an uncured resin (7) and a curing agent (8) for the uncured resin (7). A hardener capsule (9) is provided with aggregate (1) in the proximal compartment (6).
A capsule for fixing an anchor, characterized in that each capsule is filled with the following: 0).