JPH09217428A - Corrosion proof insert tool and its formation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the fitting strength, by embedding an insert element in a hole provided in a concrete structure with a solidifying filler and inserting a fixing tool from the furface of the solidifying filler into the insertion hole for the element and fixing it therein. SOLUTION: An insert element 1 fitted to the front end of a guide rod is inserted in a hole 3a of a concrete structure 3 and a solidifying filler 4 is charged in the space of the hole 3a and solidified. Then, the guide rod is removed to embed the element 1 in the structure 3. And hence, the insert element is newly embedded in an existing concrete structure 3 and various members can be fitted to the structure. And when the element 1 is made of ceramics and the solidifying filler 4 is made of epoxy resin having a higher strength than concrete, the fitting strength gets larger. And further, if a collar is set on the guide rod, the element 1 can be positioned when the guide rod is inserted in the hole 3a of the structure 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various components (buildings, highways, bridge girders, underground structures, concrete structures such as utility poles, stone structures such as quays and stone walls, and other structures made of various building materials, etc. The present invention relates to an anticorrosive insert device which is used by being embedded in a) and a forming method thereof.

[0002]

2. Description of the Related Art Generally, an insert device of this type comprises an insert body used as a female member and a bolt used as a male member, and the insert body is previously embedded in a concrete structure. There is widely known a structure in which a bolt is screwed into and coupled to the screw hole.

[0003]

However, in the conventional insert device, since the insert body is made of metal such as iron, it corrodes in concrete within a short period of time, and of course the insert body itself, There was a problem that even concrete was deteriorated.

[0004] Therefore, conventionally, for example, the actual fairness 2-800
As disclosed in Japanese Patent Laid-Open No. 2 (1994), there is one in which an insert body is formed by a body portion made of ceramics and a tubular portion forming a bolt insertion hole. However, what is disclosed in the above publication is that the insert body is embedded in advance at the time of pouring concrete, and it is desired to embed the insert body in an existing concrete structure or the like to enable attachment of various members. I couldn't meet the request.

The present invention has been made in order to solve the above problems, and can be widely embedded and fixed not only in a concrete structure that is temporarily installed in advance and cast-solidified, but also in various components. An object is to obtain an anticorrosive insert device and a method for forming the same.

[0006]

According to a first aspect of the present invention, there is provided an anticorrosive insert device, which has a fixing hole, and an insert element body which is embedded in a hole provided in a component through a filling fixing agent, and a filling member. The fixing agent is provided with an insertion hole provided from the surface to the fixing hole and a fixing tool which is inserted into the insertion hole and engaged with the fixing hole.

Further, in the anticorrosive insert device according to the second aspect, the insert element body is made of ceramics.

According to a third aspect of the present invention, there is provided a method of forming an anticorrosive insert device, wherein a tip of a guide rod is engaged with a fixing hole portion of an insert element body having a fixing hole for engaging with a fixing tool, and the guide rod is constituted. The insert element body is inserted into the hole provided at the end with the insert element body, the space in the hole of this component is filled with the filling fixing agent, and the guide rod is removed after the filling fixing agent is solidified.

In the method for forming the anticorrosive insert device according to the fourth aspect, the guide rod is provided with the flange portion which engages with the peripheral portion of the hole of the component.

According to a fifth aspect of the present invention, there is provided a method of forming an anticorrosive insert device, wherein the guide rod is provided with a fitting portion which fits into the hole of the component.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
2A to 2C are explanatory views of the method for forming the anticorrosion insert device according to the first embodiment, and in FIG.
Is an insert element body. The insert element body 1 is made of ceramics, and is provided with a fixing hole (screw hole) 1a at the center for engaging (threading) with a fixing tool (for example, a bolt, not shown) for attaching or connecting various members. ing. Reference numeral 2 is a guide rod made of iron having an engaging portion (screw portion) 2a formed at the tip portion and a collar portion 2b formed at a portion near the root. Is engaged with the fixing hole 1a from the smaller diameter portion of the insert element body 1. Further, the collar portion 2b is provided with a filling fixative injection port 2c and an exhaust port 1d.

Next, as shown in FIG. 2B, the guide rod 2 is inserted into the hole 3a provided in the concrete structure 3 with the insert element body 1 being the tip. At this time, the flange portion 2b engages with the peripheral portion of the hole 3a of the concrete structure 3 and serves as a stopper for positioning the insert element body 1. The surface of the guide rod 2 is sufficiently coated with a release agent such as a silicon type. Next, the filling fixing agent 4 such as epoxy resin is injected from the injection port 2c to fill the space in the hole 3a.

Next, as shown in FIG. 2 (c), after the filling and fixing agent 4 is solidified, the guide rod 2 is rotated and pulled out from the insert element 1 and the filling and fixing agent 4. As a result, the fixing tool (bolt) 5 is inserted into the insertion hole 4a formed in the filling fixing agent 4 as shown in FIG. 1, and the engaging portion (screw portion) 5a is engaged with the fixing hole 1a of the insert element body 1. By joining, various members are attached or connected.

In the first embodiment, after inserting the insert element body 1 engaged with the tip of the guide rod 2 into the hole 3a of the concrete structure 3 and filling the space in the hole 3a with the filling fixing agent 4 and solidifying it. , The insert element body 1 is embedded in the concrete structure 3 by removing the guide rod 2, and the insert element body 1 is newly embedded in the existing concrete structure 3 so that various members can be attached. can do. Further, since the insert element body 1 is made of ceramics, the insert element body 1 has high strength, so that the pulling-out strength and the shear strength of the fixing hole 1a are also high, and the reliability of attachment of various members is improved. . Further, since the insert element body 1 is fixed only by the filling fixing agent 4, it is possible to reduce the cost and weight, and the filling fixing agent 4 is made of epoxy resin or the like having a higher strength than concrete. , High reliability for mounting strength. Further, the guide rod 2 is provided with a collar portion 2b.
Since the insert element body 1 is provided, it is possible to easily position the insert element body 1 in the hole 3a.

Although an example of a screw hole is shown as the fixing hole 1a, a fitting hole may be used. Further, although the bolt is shown as the fixing tool 5, it may be a simple rod-shaped one, and in this case, the fixing tool 5 is fitted in the fitting hole.
As the filling fixing agent 4, mortar or the like may be used in addition to an adhesive such as an epoxy resin. The engaging portion 2a of the guide rod 2 may be rod-shaped in addition to the screw portion. The shape of the insert element body 1 is set according to application conditions such as a barrel shape, a spherical shape, a conical shape, a disk shape, or a polygonal shape. Further, since the insert element body 1 is embedded in the hole 3a of the concrete structure 3 via the filling fixing agent 4, corrosion does not occur even if it is not ceramics, and it may be formed of metal or resin. . Further, the structure 3 does not necessarily have to be made of concrete, and in addition to concrete structures such as various structures (buildings, highways, bridge girders, underground structures, utility poles, etc., stone structures such as quays and stone walls, etc. Structures made of various building materials). Further, the installation location of the insert device may be in the direction of the floor surface, the lower surface, the side wall, the ceiling surface, or the like.

Embodiment 2 FIG. 3 is an explanatory view of a method of forming an anticorrosive insert device according to Embodiment 2, and 6 is an insert element body made of ceramics. The fixture 5 is provided at the center of the insert element body 6.
A fixing hole (screw hole) 6a that engages (screws) with is provided. A fitting hole 6b is provided at one end of the fixing hole 6a. 7, a collar portion 7a is formed near the root,
This is a guide rod made of iron in which a filling fixative injection port 7b and an exhaust port 7c are formed in the collar portion 7a. Insert into the hole 3a. The subsequent procedure is the same as that of the first embodiment, and the effect is also the same.

Although an example of a screw hole is shown as the fixing hole 6a, a fitting hole may be used. Further, the shape and material of the insert element body 6 are variously set similarly to the first embodiment.

Embodiment 3 FIG. 4 is an explanatory view of a method of forming an anticorrosive insert device according to Embodiment 3, and 8 is an engaging portion (screw) which engages with a fixing hole 1a of the insert element body 1 at its tip ( It is an iron guide rod having a screw portion) 8a and a collar portion 8b near the root, and also has a collar-shaped step portion 8c adjacent to the tip end of the collar portion 8b. It fits into the hole 3a. Further, a filling / fixing agent injection port 8d and an exhaust port 8e are provided so as to penetrate the collar portion 8b and the step portion 8c.

In the third embodiment, the step portion 8c has the hole 3a.
And the collar portion 8 when the filling fixative 4 is injected.
b positions the insert element body 1 in the axial direction, and the step portion 8c positions it in the radial direction. When the side surface or the ceiling surface of the concrete structure 3 is provided with the holes 3a, the holes 3a
Although the insert element body 1 and the guide rod 8 inserted therein may fall, the fall can be prevented by fitting and fixing the step portion 8c in the hole 3a. Further, the collar portion 8b and the step portion 8c can prevent the injected fixed fixative 4 from leaking out. Other procedures and effects are similar to those of the first embodiment.

Embodiment 4 FIG. 5 is an explanatory view of a method for forming an anticorrosive insert device according to Embodiment 4, in which a gap is provided between the step 8c of the guide rod 8 and the hole 3a, and the step 8c is provided. A fitting body 8f having a spring property for fitting with the hole 3a is provided on the outer circumference of the. The procedure and effect are similar to those of the third embodiment.

Embodiment 5 FIG. 6 is an explanatory view of a method for forming an anticorrosive insert device according to Embodiment 5, in which instead of the fitting body 8f of the guide rod 8 in Embodiment 4, a hole 3a is fitted in the lower surface of the collar portion 8b. A fitting portion 8g having a circular ring shape is provided. The fitting portions 8g are provided with vertical slits at equal intervals and have elasticity, and have the same effect as that of the fourth embodiment.

Although the guide rods 2, 7 and 8 are made of iron in the above embodiments, they may be made of polyethylene. In this case, the guide rods 2, 7 and 8 can be removed relatively easily. Therefore, it is not necessary to apply a release agent to the surface.

[0023]

As described above, according to the first aspect of the present invention, the insert element body is embedded in the hole provided in the component with the filling fixing agent, and the insertion element body is fixed to the filling fixing agent from the surface thereof. An insertion hole up to the hole for use is provided, and the fixture inserted through this insertion hole is engaged with the fixing hole of the insert element body, and the insert element body is buried by opening a new hole in the existing component, It is possible to attach various members and the like, and it is possible to prevent corrosion from occurring. Further, since the insert element body is fixed only by the filling fixing agent, the insert element body is lightweight and inexpensive, and the mounting strength is high.

According to the second aspect, the insert element body is formed of ceramics having high strength, so that the mounting strength of the insert element body is increased.

According to the third aspect, the tip of the guide rod is engaged with the fixing hole of the insert element body, the guide rod is inserted into the hole of the component with the insert element body as the tip, and the hole is filled. After the fixing agent is filled and solidified, the guide rod is removed, and a fixing tool is inserted into the adhesive insertion hole generated at this time to engage with the fixing hole of the insert element body. Have a significant effect.

According to the present invention, since the guide rod is provided with the collar portion, the insert element body can be positioned when the guide rod is inserted into the hole of the component, and the side surface and the lower surface of the component can be positioned. When a hole is provided in the hole, leakage of the filling fixative can be prevented.

According to the present invention, the guide rod is provided with the fitting portion for fitting with the hole of the component, which is useful for positioning the insert element body, and when the hole is provided on the side surface or the lower surface of the component. It is possible to prevent the guide rod and the insert element body inserted into this hole from falling and prevent the filled fixative from leaking out.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of an anticorrosive insert device according to a first embodiment of the present invention.

FIG. 2 is an explanatory view of a method for forming the anticorrosive insert device according to the first embodiment.

FIG. 3 is an explanatory view showing a method for forming an anticorrosive insert device according to a second embodiment.

FIG. 4 is an explanatory view of a method for forming an anticorrosive insert device according to a third embodiment.

FIG. 5 is an explanatory view of a method of forming an anticorrosive insert device according to a fourth embodiment.

FIG. 6 is an explanatory view of a method for forming an anticorrosive insert device according to a fifth embodiment.

[Explanation of symbols]

 1, 6 ... Insert element body 1a, 6a ... Fixing hole 2, 7, 8 ... Guide rod 2a, 8a ... Engaging portion 2b, 7a, 8b ... Collar part 3 ... Concrete structure 3a ... Hole 4 ... Filling fixing agent 4a ... Insertion hole 5 ... Fixing tool 5a ... Engaging part 6c ... Fitting hole 8c ... Step part 8f ... Fitting body 8g ... Fitting part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 595010150 Forward Co., Ltd. 1-1-11, Yoshioka Higashi, Ayase City, Kanagawa Prefecture (72) Inventor Kiyofumi Ogita 2-1-117, Osaki, Shinagawa-ku, Tokyo Stock Company Shameidensha (72) Inventor Jiro Kondo, 13 Araki-cho, Shinjuku-ku, Tokyo 4 Juken Concrete Industrial Co., Ltd. (72) Inventor Tsuneo Iwanami 24-14 Sanbancho, Chiyoda-ku, Tokyo Sanyo-cho Villa 4F Iwanami Consulting Co., Ltd. (72) Inventor Shojiro Masuo 1-127 Yoshioka Higashi, Ayase City, Kanagawa Prefecture Forward Company, Ltd.

Claims (5)

[Claims] 1. An insert element body having fixing holes, which is embedded in a hole provided in a structure through a filling fixing agent, and an insertion hole formed in the filling fixing agent from its surface to the fixing hole. An anticorrosive insert device comprising: a fixing tool that is inserted into the insertion hole and is engaged with the fixing hole. 2. The anticorrosive insert device according to claim 1, wherein the insert element body is made of ceramics. 3. A method for forming an insert device comprising an insert element body embedded in a structure and a fixture having one end inserted into and engaged with the insert element body,
The tip of the guide rod is engaged with the fixing hole portion of the insert element body having the fixing hole that engages with the fixture, and the insert element body is inserted into the hole provided in the component with the insert element body being the tip. A method for forming an anticorrosive insert device, which comprises filling a space in the hole of the component with a filling fixing agent, and removing the guide rod after the filling fixing agent is solidified. 4. The method for forming an anticorrosive insert device according to claim 3, wherein the guide rod is provided with a collar portion that engages with a peripheral portion of the hole of the component. 5. The method for forming an anticorrosive insert device according to claim 3, wherein the guide rod is provided with a fitting portion that fits into the hole of the component.