JP2842836B2 - Insert device components - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insert device used for fixing a member to be fixed to a concrete structure, and more particularly to a member for an insert device used for manufacturing the same.

[0002]

2. Description of the Related Art An insert tool of this type generally 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 configuration in which a bolt is screwed into a screw hole and connected.

[0003]

However, in the conventional insert device, since the insert main body is made of metal such as iron, the insert main body is corroded within a short period of time in the concrete structure. There was a problem that even objects deteriorated.

[0004] Therefore, conventionally, for example, the actual fairness 2-800
As disclosed in Japanese Patent Application Publication No. 2 (1993) -207, there is an insert body formed by a main body part made of ceramics and a cylindrical part forming a bolt insertion hole. The parts were provided separately, and it took a lot of time and effort to manufacture the insert device.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a member for an insert device which can easily produce an insert device and which can obtain an insert device which is hardly corroded. And

[0006]

According to a first aspect of the present invention, there is provided a member for an insert device, which is embedded in a concrete structure, is formed of ceramics, and has an axial direction.
And a holding part having one end detachably connected to the fixing hole of the insert body and one end detachably fixed to a formwork used during concrete casting at one end. Tools are provided.

[0007] The member for an insert device according to claim 2 is
Embedded in concrete structures and shaped by ceramics
An insert body having a fixing hole penetrating in the axial direction, a holder having a fixing hole provided between the insert body and a mold used for concrete casting, and one end of the insert body. And a fixing portion that is detachably connected to the fixing hole of the holder and the fixing hole of the holder, and the other end is detachably fixed to the mold.

According to a third aspect of the present invention, there is provided a member for an insert device,
The holder is made of a material that is difficult to adhere to concrete,
Or surface treatment to make it difficult to adhere to concrete
It has been subjected to.

A member for an insert tool according to claim 4 is
The holding tool is covered with a tube.

[0010] The member for an insert tool according to claim 5 is
Engage with tool when detaching from concrete structure on holding part
That is, an engaging portion is provided.

[0011]

Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a sectional view showing a use state of a member for an insert device according to Embodiment 1 of the present invention, and FIG. 2 is a sectional view of the member for an insert device. In the figure, reference numeral 1 denotes an insert main body made of ceramics, which is formed in a barrel shape with an outer peripheral surface being curved. A fixing hole (screw hole) is provided through the center of the insert body 1 in the axial direction, the diameter of both ends of the insert body 1 is different, and the outer circumference near the large-diameter end is maximum. One or more detents 1b, each of which is formed by a cut-out portion cut out from the diameter portion 1d, are provided. Further, a concave portion 1c having a diameter larger than that of the fixing hole 1a is provided at an end portion on the small diameter side of the insert body 1.

Reference numeral 2 denotes a seal attached to the large-diameter end of the insert body 1, which seals one end of the fixing hole 1a. A holder 3 is provided with a coupling portion (screw portion) 3b for coupling (screw-fitting) with the fixing hole 1a on the small-diameter end side of the tapered main body portion 3a and a flange portion 3c on the large-diameter end side. The holder 3 is made of a resin such as polyethylene which does not easily adhere to concrete, or a resin or metal whose surface is coated with a release material or a resin and is subjected to a surface treatment so as to make it difficult to adhere to concrete. Reference numeral 4 denotes a screw portion having one end fixed to the side of the flange 3c of the holder 3, and the screw portion 4 is formed so that the insert body 1 and the holder 3 are positioned inside a mold 7 used for concrete casting. Frame 7
Of the holder 3 by tightening the wing nut 5
Is fixed to the formwork 7. Therefore, the screw 4 and the wing nut 5
Thus, the fixing portion 6 is formed.

Next, a method of manufacturing an insert tool using the above-described insert tool member will be described.
First, as shown in FIG. 2, in the insert device member, the coupling portion 3 b of the holder 3 is coupled to the fixing hole 1 a of the insert body 1 from the small diameter end side of the insert body 1, and the small diameter end side of the body portion 3 a The insert body 1 and the holder 3 are integrated into the recess 1c of the insert body 1. A wing nut 5 is screwed into the screw portion 4. Here, the wing nut 5 is removed from the screw portion 4, and the screw portion 4 is inserted into the hole of the formwork 7 from inside to outside as shown in FIG.
By tightening the wing nut 5 to the screw portion 4, the form 7
The insert main body 1 is fixed through the holding tool 3 inside the. Then, in this state, concrete is poured (poured) inside the formwork 7 as shown by an arrow 8.

Next, as shown in FIG. 3, after the concrete has solidified into a concrete structure 9, the wing nut 5
Is removed to remove the formwork 7 and rotate the holder 3 to separate it from the insert body 1 and the concrete structure 9. Then, the insert body 1 is removed from the surface of the concrete structure 9.
The fixture insertion hole 10 is formed up to this point. Here, a fixing tool (bolt) 12 is inserted into the hole 11a of the fixed member 11, and the fixing tool 12 is further inserted into the fixing tool insertion hole 10 so that the coupling portion (screw portion) 12a is used for fixing the insert body 1. Hole 1a
The fixed member 11 is fixed to the concrete structure 9 by being connected (screwed) to the concrete structure 9.

According to the first embodiment, the insert main body 1, the holder 3, and the fixing portion 6 to the formwork 7 are integrated, and are fixed to the formwork 7 by the fixing portion 6 as they are when concrete is poured. Since it suffices, the manufacture of the insert instrument including the embedding in the concrete structure 9 becomes extremely easy. Further, since the insert body 1 is formed of ceramics, corrosion of the insert body 1 and deterioration of the concrete structure 9 do not occur.

The fixing hole 1a of the insert main body 1 may be a fitting hole instead of a screw hole, and the fixing tool 12 may be a rod-shaped one instead of a bolt. Also, the connecting portion 3b may be a bar-shaped member instead of the screw portion. Instead of the seal 2, a plug-shaped member that fits into the fixing hole 1a may be used.

Embodiment 2 FIG. 4 is a sectional view of a member for an insert device according to Embodiment 2 of the present invention. Reference numeral 15 denotes a female female screw portion embedded in the holder 3, the end of which is a flange 3c of the holder 3. A square hole 15a is formed at the end of the female screw 15 on the side of the flange 3c. Therefore, the insert body 1 is fixed to the mold frame 7 via the holder 3 by screwing the bolt to the female screw portion 15 via the mold frame 7, and after removing the bolt and the mold frame 7 at the time of removal. When the wrench is fitted into the square hole 15a and the holder 3 is rotated, the holder 3 can be easily removed. Other configurations and effects are the same as those of the first embodiment.

Embodiment 3 FIGS. 5 (a) and 5 (b) show a sectional view of a member for an insert device and a sectional view of a wrench for rotating a holder according to a third embodiment. A release agent (a resin or the like) is applied to the surface, and a threaded portion 3e protruding at the center is provided at an end of the flange portion 3c side, and a plurality of engagement holes 3f are provided at a peripheral portion. Meanwhile, wrench 1
Reference numeral 6 has an insertion hole 16a through which the screw portion 3e is inserted, and a plurality of projections 16b which engage with the engagement holes 3f.

In the above configuration, the screw portion 3e of the holder 3
Is inserted from inside to outside of the formwork 7 of FIG. 1, and the insert body 1 is fixed to the formwork 7 via the holder 3 by screwing the wing nut 5 of FIG. 1, and concrete is poured. On the other hand, at the time of removal, after removing the wing nut 5 and the mold frame 7, the protrusion 16b of the wrench 16 is engaged with the engagement hole 3f of the holder 3, and the holder 3 is rotated to insert the insert body 1 and the concrete. The holder 3 is removed from the structure 9.

Also in the third embodiment, the removal of the holder 3 is simplified, and other configurations and effects are the same as those of the first embodiment.

Embodiment 4 FIGS. 6A to 6C show a sectional view of a member for an insert device and an enlarged sectional view of a tube according to Embodiment 4, respectively.
Has a connecting portion (screw portion) 17b for connecting to the fixing hole 1a at one end of a round bar-shaped main body portion 17a, a flange portion 17c at the other end, and a screw portion 17d protruding from the center of the flange portion 17c. 18 is a main body 17a
6 (see FIG. 6B).

In the above configuration, the screw body 17d is inserted from the inside to the outside of the mold frame 7, and the insert body 1 is fixed to the mold frame 7 via the holding tool 17 by screwing the wing nut 5. After the concrete poured into the inside of the formwork 7 solidifies to form a concrete structure 9, the wing nut 5
Then, when the mold 7 is removed and the holder 17 is further rotated and extracted from the insert body 1 and the tube 18, a fixture insertion hole is formed at the place where the main body 17a and the flange 17c of the holder 17 were. Then, the fixed member 11 is fixed to the concrete structure 9 by connecting the hole 11a of the fixed member 11 and the connecting portion 12a of the fixing tool 12 inserted into the fixing tool insertion hole to the fixing hole 1a of the insert body 1. I do.

In the fourth embodiment, since the tube 18 covers the main body 17a of the holder 17, the holder 1
7 does not adhere to the concrete structure 9, and the holder 17 can be easily removed. Other effects are the same as those of the first embodiment.

The tube 18 may be detached simultaneously with or after the detachment of the holder 17 if it can be detached. FIG. 6C shows the tube 18.
As shown in FIG. 7, an axial cut 18a may be provided, which makes it easier to remove the tube 18 from the concrete structure 9.

Fifth Embodiment FIG. 7 is a sectional view showing a use state of a member for an insert device according to a fifth embodiment. The holder 3 is formed of a resin, and a recess 3g is formed at an end of the flange 3c side. At the same time, a hexagonal columnar engaging portion 3h is buried in the concave portion 3g with one end protruding.
Are provided to protrude.

In the above construction, the insert 3 is inserted into the hole 7a of the mold 7 from the inside to the outside, and the wing nut 5 is tightened. The concrete poured into the inside of the formwork 7 as shown by an arrow 8 is solidified to form a concrete structure 9.
Is formed, the wing nut 5 and the formwork 7 are removed, and a wrench is fitted into the engaging portion 3h, and the holder 3 is rotated to remove the wrench nut 5 and the mold body 7 from the insert body 1 and the concrete structure 9.

Also in the fifth embodiment, the provision of the engaging portion 3h makes it easy to remove the holder 3, and the other configurations and effects are the same as those of the first embodiment.

Embodiment 6 FIG. 8 is a cross-sectional view showing a use state of a member for an insert device according to Embodiment 6, and 19 is a holder (trade name: Marui Polymer) provided between the insert body 1 and the mold frame 7. F), which is formed of a metal hexagonal cylinder 20 having a fixing hole (screw hole) 20a therein and a resin truncated cone 21 integrally formed on the outer periphery thereof. The truncated conical portion 21 is disposed such that the large diameter side is on the mold frame 7 side.
Reference numeral 22 denotes a fixing hole 1a at one end of a hexagonal prism-shaped main body 22a.
A fixing portion having a coupling portion (screw portion) 22b coupled to the main portion 20a and a screw portion 22c at the other end, and the outer shape of the main body portion 22a is substantially equal to that of the hexagonal cylinder portion 20. The truncated cone portion 21 is formed of a resin that is difficult to adhere to concrete, or its surface is subjected to a surface treatment so that it is difficult to adhere to concrete.

Also in the sixth embodiment, the connecting portion 22b of the fixing portion 22 is connected to the fixing holes 1a, 20a, and the insert body 1, the holder 19, and the fixing portion 22 are integrated. At this time, the end of the body 22a of the fixing portion 22 on the side of the mold 7 and the end of the truncated cone 21 on the side of the mold 7 are flush with each other. In this state, when the screw portion 22c of the fixing portion 22 is inserted from the inside to the outside of the hole 7a of the formwork 7 and the wing nut 5 is tightened, the insert body is inserted into the formwork 7 through the holding tool 21 and the fixing portion 22. 1 is fixed, and concrete is poured therein as shown by arrow 8. Concrete does not enter the truncated cone 21. After the concrete structure 9 is formed, the wing nut 5 and the mold frame 7 are removed, the wrench is fitted to the main body 22a and the fixed part 22 is rotated to remove the wrench, and the wrench is fitted to the hexagonal cylinder 20. At the same time, the holder 19 is rotated and removed. As a result, a frustum-shaped fixing tool insertion hole is formed in the concrete structure 9, and the fixing tool 12 is inserted into the hole 11a of the fixed member 11 and the fixing tool insertion hole to be connected to the fixing hole 1a. The fixed member 11 is fixed to the concrete structure 9.

Also in the sixth embodiment, the insert body 1, the holder 19 and the fixing portion 22 are integrated, and it is sufficient to fix the insert 7 to the formwork 7 by the fixing portion 22 at the time of concrete casting. It will be easier. The wrench is fitted to the main body 22a of the fixing part 22 and the hexagonal cylinder part 20 of the holder 19, so that the fixing part 22
Also, removal of the holder 19 becomes extremely easy.

[0031]

As described above, according to the first and second aspects of the present invention, the insert body, the holder, and the fixing portion to the mold are integrally provided, and the integrated body is fixed to the fixing portion. If it is fixed to the formwork via the concrete, the concrete can be cast, and the manufacture of the insert device becomes easy.

Further , since the insert body is formed of ceramics, corrosion of the insert body and deterioration of the concrete structure can be prevented.

According to the third aspect of the present invention , the holding member is formed of a member that is difficult to adhere to concrete, or such a surface treatment is performed, and the holding member can be easily removed from the concrete structure.

According to the fourth aspect, the tube is put on the holder, the holder does not adhere to concrete, and the holder can be easily removed.

According to the fifth aspect, the holder is provided with the engagement portion with the tool, so that the holder can be easily removed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a use state of a member for an insert device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the member for an insert device according to the first embodiment.

FIG. 3 is a cross-sectional view of an insert device manufactured using the insert device member according to the first embodiment.

FIG. 4 is a cross-sectional view of a member for an insert device according to a second embodiment.

FIG. 5 is a sectional view of a member for an insert tool and a sectional view of a wrench according to a third embodiment.

FIG. 6 is a sectional view of a member for an insert device and an enlarged sectional view of a tube according to a fourth embodiment.

FIG. 7 is a sectional view showing a use state of a member for an insert device according to a fifth embodiment.

FIG. 8 is a cross-sectional view showing a use state of a member for an insert device according to a sixth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Insert body 1a, 20a ... Fixing hole 3, 17, 19 ... Holder 3b, 17b, 22b ... Coupling part 3e, 3i, 4, 17d, 22c ... Screw part 3f ... Engagement hole 3h ... Engagement part 5 ... Wing nuts 6,22 ... Fixing part 7 ... Form frame 7a ... Hole 9 ... Concrete structure 10 ... Fixing tool insertion hole 11 ... Fixed member 12 ... Fixing tool 15 ... Female screw part 15a ... Square hole part 16 ... Wrench 18 ... Tube 20: Hexagonal tube 21: Truncated cone 22: Body

──────────────────────────────────────────────────続 き Continuing from the front page (73) Patent holder 396000639 Taiyo Seiko Co., Ltd. 141 Bodichi, Hadano-shi, Kanagawa (72) Inventor Kiyofumi Ogita 2-1-1, Osaki, Shinagawa-ku, Tokyo Inside Meidensha Co., Ltd. (72) Inventor Jiro Kondo 13-4, Araki-cho, Shinjuku-ku, Tokyo Inside Sumiken Concrete Industry Co., Ltd. (72) Inventor Tsuneo Iwanami 24F, Sanbancho 24F, Sanbancho, Chiyoda-ku, Tokyo 4F Iwanami Consulting Co., Ltd. 72) Inventor Shojiro Masuo 1-11-27 Yoshioka Higashi, Ayase-shi, Kanagawa Prefecture Inside Forward Co., Ltd. (72) Inventor Kimio Momose 141 Bodichi, Hadano-shi, Kanagawa Prefecture Taiyo Seiko Co., Ltd. (56) References −54408 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04B 1/41

Claims (5)

(57) [Claims] 1. A embedded in the concrete structure, ceramic
And an insert body having an axially penetrating fixing hole, one end of which is detachably connected to the fixing hole of the insert body, and the other end being used for concrete casting. A member for an insert device, comprising a holder having a fixing portion detachably fixed to a mold. 2. A embedded in the concrete structure, ceramic
And an insert main body having a fixing hole penetrated in the axial direction , provided between the insert main body and a formwork used during concrete casting,
A holder having a fixing hole, and a fixing portion having one end detachably connected to the fixing hole of the insert body and the holder and the other end detachably fixed to the mold. Insert device components. 3. A member which is difficult to adhere to concrete.
Hard to form or adhere to concrete
3. The method according to claim 1, wherein the surface is subjected to a surface treatment.
For insert instruments on the list. 4. A holder is covered with a tube.
The member for an insert device according to claim 1 or 2, wherein 5. The retainer is separated from the concrete structure.
Characterized by having an engagement portion that sometimes engages with the tool.
The member for an insert device according to any one of claims 1 to 4 .