JP5225899B2 - Insert centering material - Google Patents

Description

  The present invention relates to a centering material for an insert used in civil engineering or construction.

2. Description of the Related Art Conventionally, a cap is put on an opening portion of an insert so that dust or the like does not enter a female thread portion of an insert used in civil engineering or construction. For example, the lid body 23 of JP-A-2002-213023 corresponds to this. Japanese Patent Laid-Open No. 10-34043 discloses a technique in which masking materials having the same action as this cap are displayed in different colors so that the type of piping for electricity, telephone, water supply, air conditioning, etc. can be specified. Yes.
JP 2002-213023 A Japanese Patent Laid-Open No. 10-34043

  The insert device described in Japanese Patent Application Laid-Open No. 2002-213023 is a pre-installed mold that is attached to a formwork in advance before the concrete is placed, and the lid used there needs to perform the centering function of the insert. It is not put on the insert after the concrete product is finished. Therefore, the lid used in this insert device cannot be applied to the centering of a post-installation type in which the insert is installed later on the finished concrete product.

  Further, the insert masking material disclosed in Japanese Patent Application Laid-Open No. 10-34043 is also used for inserts already embedded in concrete products, and does not need to fulfill the centering function of the insert. Therefore, this masking material cannot be applied to the centering of the post-installation type in which the insert is later installed in the finished concrete product.

  (Claim 1) The centering material of the insert according to the present invention has a sealing part and a centering part. The sealing portion has a ring plate shape and a through-hole having a hole diameter suitable for the diameter of the insert, and an annular drainage mountain facing the peripheral surface of the opening of the insert. The centering portion is elastic, protrudes from the outside of the drainage ridge on the surface of the sealing portion where the drainage ridge is located, and an elastic contact portion with respect to the outer peripheral surface of the insert, and the insert drilled in the concrete product A press-contact portion that press-contacts with the inner wall surface of the insertion hole and centers the opening of the insert.

  The centering part is slid onto the outer peripheral surface of the insert from the opening side, and the through hole is aligned with the opening of the insert. The centering portion is pressed against the outer peripheral surface of the insert due to its elasticity. The bolt for fastening is screwed into the female screw of the insert through the through hole of the sealing portion and the opening of the insert. When the bolt is screwed in further strongly, the drainage ridge on the side opposite to the centering portion of the sealing portion is biased by the bolt and is brought into close contact with the bolt to seal the through hole. Further, the drainage ridge on the centering portion side of the sealing portion is biased by the opening peripheral surface of the insert and is in close contact with the peripheral surface to seal the opening.

  Drill an insertion hole to embed the insert with a drill in a specific part of the concrete product. The hole diameter of the insertion hole is made smaller than the outer dimension of the centering portion of the centering material. An adhesive is fed into the insertion hole via an injection pump or the like. The insert with the centering material attached is inserted into this insertion hole from the side opposite to the bolt. When the centering part hits the inner wall surface of the insertion hole, the outer dimension of the centering part is larger than the inner diameter of the insertion hole, so that the centering part is repelled by the inner wall surface toward the outer peripheral surface of the insert, The center is aligned with the center of the opening of the insertion hole and supported.

  By inserting the insert, a part of the adhesive is pushed out to the opening side of the insertion hole and wraps around the insert. Wait for the adhesive to solidify in this state. Once solidified, the bolt is removed from the insert and the insert is ready for service.

(Claim 2) The sealing portion may be formed with an annular drainage mountain on a surface opposite to the surface where the drainage mountain is located.
In this case, the drainage crush is crushed by tightening the tightening bolts to close the through hole of the sealing portion, so that foreign matter can be prevented from entering the insert through the through hole into the insert.

(Claim 3) The sealing portion may include a drainage mountain on an outer periphery of the same surface as the surface with the drainage mountain.
In this way, when the insert is inserted into the insertion hole of the concrete product with the centering material attached to the insert, and the outer periphery of the sealing part is pressed against the surface of the concrete product, the drainage is compressed and the concrete product is pressed. Since it is in pressure contact with the surface, it is possible to prevent water droplets flowing down along this surface from entering the insert.

(Claim 4) The centering portion may be a plurality of leg pieces, and each leg piece may be arranged at an equal central angle with respect to the axis of the sealing portion.
If it carries out like this, since each leg piece will support an insert equally, it will become easy to adapt the opening of an insert to the center of an insertion hole.

(Claim 5) The leg piece may include a cutting portion at a connection portion with the sealing portion.
In this case, since the sealing part protrudes on the surface of the concrete product, when the mounting part or the like cannot be seated closely on the concrete surface, the sealing part is cut and removed by the cutting part, so that Sitting is possible.

(Claim 1) According to the centering material of the insert according to the present invention, the sealing portion is a ring plate and has a through hole having a diameter suitable for the diameter of the insert, and an annular shape facing the peripheral surface of the opening of the insert. Since it is equipped with a drainage ridge, when the centering material is fastened to the insert with a bolt, the drainage ridge is crushed between the bolt and the insert to close the through hole of the centering material and the opening of the insert. Prevents foreign objects and water from entering. In addition, the centering portion is elastic, protrudes from the outside of the drainage ridge on the side of the sealing portion where the drainage ridge exists, and includes an elastic contact portion with respect to the outer peripheral surface of the insert, and an insertion hole for the insert. Since it has a pressure contact part that presses against the inner wall surface to center the opening of the insert, if the centering part is slid onto the outer peripheral surface of the insert from the opening side, the centering part is inserted by the elasticity. Press contact with the outer peripheral surface of the. If you insert an adhesive into the insertion hole in the concrete product and insert the insert with the centering material into the insertion hole from the opposite side of the bolt, the centering part will be repelled by the inner wall of the insertion hole, The center of the opening can be matched with the center of the opening of the insertion hole and supported.
By inserting the insert, a part of the adhesive is pushed out to the opening side of the insertion hole and wraps around the insert, so if you remove the bolt from the insert after the adhesive solidifies, you can use the insert. it can.

  According to a second aspect of the present invention, since the sealing portion is formed with an annular drainage ridge on the surface opposite to the surface where the drainage ridge is located, the drainage ridge is crushed and sealed by tightening the fastening bolt. Since the through-hole of the stop portion is closed, foreign matter can be prevented from entering the insert through the through-hole into the insert.

  According to claim 3, since the sealing portion has a drainage rim on the outer periphery of the same surface as the surface with the drainage ridge, the insert is made into the insertion hole of the concrete product with the centering material attached to the insert. When the outer periphery of the sealing part is pressed against the surface of the concrete product when inserted, the drained mountain is crushed and pressed against the surface of the concrete product, so that water droplets flowing down through this surface enter the insert. Can be prevented.

  According to claim 4, the centering portion is a plurality of leg pieces, and each leg piece is arranged at an equal central angle with respect to the axis of the sealing portion. It is easy to support the insert evenly and fit the opening of the insert to the center of the insertion hole.

  According to claim 5, since the leg piece is provided with a cutting part at the connection part with the sealing part, the sealing part protrudes on the surface of the concrete product, so that the mounting parts and the like are on the concrete surface. When the seat cannot be seated closely, the seat can be seated closely by cutting and removing the sealing portion with the cutting portion.

It is a front view of the right half cross section of the centering material. It is a top view. It is a slope view of a centering material and an insert. It is a fragmentary sectional view in the state where a centering material was set in an insert. It is explanatory drawing of the state which opened the insertion hole of the insert in concrete products. It is explanatory drawing of the state which fills an insertion hole with an adhesive agent. It is explanatory drawing of the state which inserts the insert which set the centering material into an insertion hole. It is sectional drawing of an insertion completion state. It is explanatory drawing of the state which supported the to-be-supported object using the insert arrange | positioned at a concrete product.

  The drawings show a specific example of the centering material according to the present invention and how to arrange the centering material in a concrete product. 1 is a front view of the right half section of the centering material, FIG. 2 is a plan view, FIG. 3 is a perspective view of the centering material and the insert, and FIG. 4 is a partial sectional view of the centering material set in the insert. . FIG. 5 is an explanatory view showing a state in which the insertion hole of the insert is made in the concrete product, and FIG. FIG. 7 is an explanatory view showing a state in which the insert with the centering material set is inserted into the insertion hole, FIG. 8 is a cross-sectional view of the insertion completed state, and FIG. 9 supports the supported object using the insert arranged in the concrete product. It is explanatory drawing of a state.

  The centering material according to the present invention has a sealing portion 1 and a centering portion 2. The sealing portion 1 has a ring plate shape and a through hole 11 having a diameter matching the diameter d1 of the opening 31 of the insert 3 and an annular drainage mountain 12 facing the peripheral surface 32 of the opening 31 of the insert 3. The centering portion 2 is elastic, protrudes from the outside of the drainage ridge 12 on the surface side of the sealing portion 1 where the drainage ridge 12 is located, the elastic contact portion 21 with respect to the outer peripheral surface 33 of the insert 3, and the insert drilled in the concrete product 4 3 is provided with a press-contact portion 22 that press-contacts with the inner wall surface 42 of the insertion hole 41 for 3 and centers the opening 31 of the insert 3.

  The centering portion 2 is slid onto the outer peripheral surface 33 of the insert 3 from the opening 31 side, and the through hole 11 is aligned with the opening 31 of the insert 3. The centering portion 2 is pressed against the outer peripheral surface 33 of the insert 3 by its elasticity. The bolt 5 to be fastened is screwed into the female screw 34 of the insert 3 through the through hole 11 of the sealing portion 1 and the opening 31 of the insert 3. When the bolt 5 is screwed in further strongly, the drainage ridge 13 on the opposite side of the centering portion 2 of the sealing portion 1 is biased by the bolt 5 and is brought into close contact with the bolt 5 to seal the through hole 11. Further, the drainage ridge 12 on the centering portion 2 side of the sealing portion 1 is pressure-biased by the peripheral surface 32 of the opening 31 of the insert 3 and is in close contact with the peripheral surface 32 to seal the opening 31.

  When using this insert 3 for use, as shown in FIGS. 5 to 8, an insertion hole 41 for burying the insert 3 is drilled in a predetermined portion of the concrete product 4 with a drill 6. The hole diameter d2 of the insertion hole 41 is made smaller than the outer dimension d3 of the centering portion 2 of the centering material 1. The adhesive 8 is fed into the insertion hole 41 via the injection pump 7. The insert 3 to which the centering material 1 is attached is inserted into the insertion hole 41 from the side opposite to the bolt 5. When the centering portion 2 hits the inner wall surface 42 of the insertion hole 41, the outer dimension d3 of the centering portion 2 is larger than the hole diameter d2 of the insertion hole 41, so that the centering portion 2 is directed toward the outer peripheral surface 33 of the insert 3 by the inner wall surface 42. The insert 3 is supported by aligning the center of the opening 31 with the center of the opening 43 of the insertion hole 41.

By inserting the insert 3, a part of the adhesive 8 is pushed out to the opening 43 side of the insertion hole 41 and wraps around the insert 3. Wait for the adhesive 8 to solidify in this state. Once solidified, the bolt 5 is removed from the insert 3 so that the insert 3 can be used.
FIG. 9 shows a state in which the angle 9 is attached to the insert 3 with the bolt 5.

(Claim 2) In the sealing portion 1, an annular drainage mountain 13 is formed on the surface opposite to the surface where the drainage mountain 12 is located.
In this case, the drainage mountain 13 is crushed by the tightening of the bolts 5 to be tightened to block the through hole 11 of the sealing portion 1, so that foreign matter enters the insert 3 through the through hole 11 from the opening 31. Can be prevented.

(Claim 3) The sealing portion 1 is provided with a drainage mountain 14 on the outer periphery of the same surface as the surface with the drainage mountain 12.
In this case, when the insert 3 is inserted into the insertion hole 41 of the concrete product 4 with the centering material attached to the insert 3 and the outer periphery of the sealing portion 1 is pressed against the surface of the concrete product 4, Since it is pressed down and pressed against the surface of the concrete product 4, it is possible to prevent water droplets or the like flowing down along this surface from entering the insert 3.

(Claim 4) The centering portion 2 has a plurality of leg pieces 23, and each leg piece 23 is arranged at an equal center angle θ with respect to the axis C of the sealing portion 1.
In this case, since each leg piece 23 supports the insert 3 equally, it becomes easy to match the center of the opening 31 of the insert 3 with the center of the insertion hole 41.

(Claim 5) The leg piece 23 is provided with a cutting portion 24 at a connection portion with the sealing portion 1.
In this case, since the sealing part 1 protrudes on the surface of the concrete product 4, the sealing part 1 is cut by the cutting part 24 when the mounting parts cannot be seated closely on the surface of the concrete product 4. By removing it, close seating becomes possible.

DESCRIPTION OF SYMBOLS 1 Sealing part 11 Through-hole 12 Mizukiri mountain 13 Mizukiri mountain 14 Mizukiri mountain 2 Centering part 21 Elastic contact part 22 Pressure contact part 23 Leg piece 24 Cutting part 3 Insert 31 Opening 32 Peripheral surface 33 Outer peripheral surface 34 Female thread 4 Concrete product 41 Insertion hole 42 Inner wall surface 43 Opening 5 Bolt 6 Drill 7 Injection pump 8 Adhesive 9 Angle

Claims (5)

It has a sealing part (1) and a centering part (2),
The sealing portion (1) has a ring plate shape and has a through-hole (11) having a diameter matching the aperture (d1) of the opening (31) of the insert (3), and a peripheral surface (32) of the opening (31). It has an annular ringed mountain (12) facing each other,
The centering portion (2) is elastic and protrudes from the outside of the drainage mountain (12) on the surface side of the sealing portion (1) where the drainage mountain (12) is located, and the outer wall surface of the insert (3) The opening of the insert (3) in pressure contact with the inner wall surface (42) of the insertion hole (41) for the insert (3) drilled in the concrete product (4) An insert centering material, characterized by comprising a pressure contact portion (22) for centering (31).   The centering material for inserts according to claim 1, wherein the sealing portion (1) has an annular drainage ridge (13) formed on a surface opposite to the surface on which the drainage ridge (12) is present.   The centering material for inserts according to claim 1 or 2, wherein the sealing portion (1) is provided with a drainage ridge (14) on the outer periphery of the same surface as the surface on which the drainage ridge (12) is present.   The centering portion (2) has a plurality of leg pieces (23), and each leg piece (23) has an equal center angle (θ) with respect to the axis (C) of the sealing portion (1). The centering material for inserts according to claim 1, which is arranged. The centering material for inserts according to claim 4, wherein the leg piece (23) includes a cutting portion (24) at a connecting portion with the sealing portion (1).

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