JP3143556B2 - Buried tool and structure of through hole in slab - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a burying tool and a buried structure for a through hole in a slab which allows one-touch operation of burying the through hole in a slab for passing various pipes in a building. .

[0002]

2. Description of the Related Art Conventionally, water, gas,
It is required that through-holes are provided for passing various pipes for cooling and heating, and after the pipes are passed through the through-holes, the space between the pipes and the through-holes is closed with concrete.

However, if the slab is a floor, for example, if the slab is a floor, the veneer plate is fixed from the lower ceiling side, and then concrete is buried from the floor side. Therefore, work must be performed from both sides of the slab. Because it is extremely troublesome and the seal is applied to the veneer plate, leakage frequently occurs after embedding the concrete, so that the concrete surface on the veneer plate side has irregularities or completely fills the space. It was not possible to perform the process, and the finish was poor.

[0004]

SUMMARY OF THE INVENTION The present invention makes it possible to cope with through holes having different diameters by using one kind of burying tool, and to allow the working side to close an opening opposite to the working side.
Another object of the present invention is to provide an embedding tool and an embedding structure for a through-hole in a slab that improves the workability by achieving one-touch operation, and furthermore makes the closed surface look good and clear.

[0005]

SUMMARY OF THE INVENTION In view of the problems of workability and finish based on the above-mentioned prior art, the present invention is to deform a supporting piece of a strip-shaped base into a cylindrical shape so as to point to the center or outward. Inserting and mounting in the through-hole, then filling the through-hole with mortar and curing, providing an embedding tool and an embedding structure of the through-hole in the slab, which is intended to achieve one-touch operation. It is something that has not been resolved.

[0006] As an embedding tool, when deformed into a cylindrical shape, the base is formed into a tubular shape from one side edge of the base formed in a strip shape with a material having an elastic restoring force in a radially expanding direction. Deformed
In this case, a large number of support pieces projecting in the radial direction are provided at predetermined intervals in the longitudinal direction, and a seal film is attached between the support pieces.

Further, a bent portion is formed on the support piece, an adhesive portion is provided along the longitudinal direction of the base, and a positioning projection is protruded from the other side edge of the base. A scale is provided to indicate the distance from the side edge.

In the buried structure, the base is deformed into a cylindrical shape so that each support piece is directed toward the center or outward, and is inserted and mounted below the through-hole, and then the mortar is inserted into the through-hole. To fill and cure, or a non-combustible material is provided around the pipe above the through hole.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes various pipes for water supply, gas, cooling and heating in a slab S constituting a ceiling, floor, wall, etc. of a building according to the present invention. An embedding tool for a through hole H through which P passes. The embedding tool 1 has a predetermined width and has a strip-shaped base 2 made of a material having an elastic restoring force in a radially expanding direction when deformed into a cylindrical shape. Is formed at a predetermined length.

The material of the base 2 may be any material having flexibility, such as plastic, paper, and metal.

Reference numeral 3 denotes a narrow plate-shaped support piece integrally formed on one side edge of the base 2 in the short direction. The support piece 3 projects in the radial direction when the base 2 is deformed into a cylindrical shape. And make it narrower from the middle part to the tip side,
A large number of the bases 2 are provided at predetermined intervals in the longitudinal direction.

The projecting dimension of the support piece 3 is larger than the radius difference between the pipe P and the through hole H in a state where the support piece 3 is directed outward when the base 2 is deformed into a cylindrical shape. And the diameter is larger than the radius difference between the pipe P and the through hole H in a state where the support piece 3 is directed to the center.

It is also possible to make the protrusion dimensions satisfying the above two conditions.

The support piece 3 is formed with a bent line portion 4 such as a V notch or a perforation so that the base 2 can be easily bent in the direction of the center axis when the base 2 is deformed into a cylindrical shape.

Reference numeral 5 denotes a sealing film, which is formed of a flexible material into a film shape with a width approximately equal to the projecting dimension of the support piece 3.
It is attached to one surface of each support piece 3 in the longitudinal direction.

In the state where the sealing film 5 is attached, when the base 2 is deformed into a cylindrical shape, even when the support piece 3 is directed outward, the sealing film 5 is attached in a circumferential direction in a film shape. When the support pieces 3 are oriented in the center, the seal film 5 between the support pieces 3 has a fold shape.

The material of the sealing film 5 includes the base 2
Any material may be used as long as it satisfies the above condition.

Numeral 6 denotes a positioning protrusion, which is at least protruded from the other lateral edge of the base 2 so that when the base 2 is deformed into a cylindrical shape, it projects in the direction of the central axis. One or more pieces are integrally formed.

In the direction in which the positioning projection 6 projects, the base 2
There is provided a scale 8 for displaying the distance from one side edge.

As another embodiment of the positioning projection 6, a rod-shaped member 7 such as a wire or a piano wire is formed as a separate body instead of being integrally formed, and one end of the rod-shaped member 7 is bent. When the base 2 is inserted into a mounting hole 2a formed on the other side edge of the base 2 in the short side direction and the base 2 is deformed into a cylindrical shape, the base 7 protrudes in the center axis direction. I do it.

A graduation 8 similar to the above is formed on the rod-shaped member 7.

Reference numeral 9 denotes an adhesive portion, and the adhesive portion 9 has an adhesive applied over at least one longitudinal direction of the front and back surfaces of the base 2.

The adhesive may be a double-sided adhesive tape.

Next, a description will be given of a buried structure of a through-hole using the burying tool according to the present invention. The pipe P is passed through the through-hole H of the slab S from one side, for example, the floor side of the slab S. , So that each support piece 3 is center-oriented.
Is deformed into a cylindrical shape, and is bent outward from a position corresponding to the thickness of the slab S in the positioning protrusion 6, and the embedding tool 1 is moved downward in the through hole H in this state, that is, the positioning protrusion is formed. 6 is inserted and mounted until it comes into contact with the floor F of the slab S, and then the space K between the through hole H and the pipe P is filled with mortar M and cured to bury the buried structure U. And

In the mounted state of the embedding tool 1, the base 2 is expanded in diameter by its elastic restoring force so that the outer peripheral surface is in circumferential contact with the inner peripheral surface of the through hole H and the support piece 3 is in contact with the support piece 3. Since the dimension is larger than the radius difference between the pipe P and the through hole H, the tip side of the support piece 3 is bent from the fold line portion 4 and deforms upward, and the tip side of the pipe P is elastically restored by the elastic restoring force. The lower opening of the through hole H is closed by the seal film 5 by being in circumferential contact with the inner peripheral surface.

The bending deformation 6a of the positioning projection 6 can prevent the mortar M filling the space K from falling off due to the weight thereof.
Can be made substantially the same as the ceiling surface T of the slab S.

In addition, by dropping and fixing to the inner peripheral surface of the through hole H by the bonding portion 9 of the base 2 instead of the positioning protrusion 6, the falling-off can be regulated in the same manner as described above.

Next, regarding another buried structure U, the slab S
After the base 2 is deformed into a cylindrical shape from the floor side, which is one side of the pipe, around the pipe P passed through the through hole H of the slab S so that each support piece 3 points outward. In the same manner as described above, the mortar M is filled and cured in the space K between the through hole H and the pipe P to be buried structure U.

In the mounted state of the embedding tool 1, the base 2 is expanded by its elastic restoring force, contrary to the embedding structure U, so that the outer peripheral surface is brought into circumferential contact with the inner peripheral surface of the pipe P and The distal end of the support piece 3 is bent from the fold line portion 4 and deforms upward, and the distal end is brought into circumferential contact with the inner peripheral surface of the through hole H by elastic restoring force. The lower opening is closed.

Next, regarding another buried structure U, the slab S
After the base 2 is deformed into a cylindrical shape so that each support piece 3 is directed to the center or outward from the floor side which is one side of the slab S, around the pipe P passed through the through hole H of the slab S. , And inserted and mounted in the lower part of the through hole H in the same manner as described above.
Around the upper pipe P, a non-combustible material 10 made of a material having a heat insulating function such as rock wool, glass wool, quartz fiber, silica fiber, ceramic fiber and the like is provided, and its lower end is inserted into the upper part of the through hole H. Then, the space portion K of the through hole H is filled with mortar M and cured to form a buried structure U.

[0031]

In short, the present invention provides a belt-shaped base 2 made of a material having an elastic restoring force in a diameter-expanding direction when deformed into a cylindrical shape. Since a large number of support pieces 3 protruding in the radial direction when the base body 2 is deformed into a cylindrical shape from the side edges are provided at predetermined intervals in the longitudinal direction, and the seal film 5 is attached between the support pieces 3, The base 2 can be deformed into a cylindrical shape so that each support piece 3 is oriented in the center or outward direction, and can be mounted in the through-hole H. Therefore, even a through-hole H having a different diameter can be handled by one type of the burying tool 1. Further, since the base 2 and the support piece 3 can press the inner peripheral surface of the through hole H and the outer peripheral surface of the pipe P by their elastic restoring force, if the slab S is a wall, it is simply inserted into the through hole H and mounted. Only the opening opposite to the working side of the through hole H by the sealing film 5 Closure can thereby with work before filling the mortar M is one-touch, can greatly improve the workability becomes work only on one side of the slab S.

Also, since the folding line portion 4 is formed on the support piece 3,
Since the distal end side of the support piece 3 is bent from the fold line portion 4 and deforms upward, the closed surface of the buried structure U opposite to the working side is formed in a generally planar shape with a good appearance without bulging outward. Can be.

Further, since the bonding portion 9 is provided over at least one longitudinal direction of the front and back surfaces of the base 2 and the positioning projection 6 is projected from the other side edge in the short direction of the base 2, the bonding of the base 2 By bonding and fixing to the inner peripheral surface of the through hole H by the part 9, for example, the mortar M when working from the floor side
It is possible to restrict the falling off due to the weight of the device and to reliably close the device.

Further, since the scale 8 is provided for indicating the distance from one side edge of the base 2 in the projecting direction of the positioning projection 6, the closing surface of the sealing film 5 is substantially the same as the ceiling surface T of the slab S. Therefore, it can be formed clearly and with good appearance.

A state in which the base 2 is deformed into a cylindrical shape such that the supporting pieces 3 are directed to the center or outward around the pipe P passing through the through hole H of the slab S. , A non-combustible material 10 is provided around the pipe P above the through hole H, and the lower end thereof is inserted into the upper portion of the through hole H. Since the mortar M is filled and cured in the rear through-hole H, the non-combustible material 10 can be fixed to one side of the sealing film 5, so that a structure that can function sufficiently as a flameproof structure can be reliably and simply formed on one side of the slab S. The practical effect is extremely large, such as one-touch operation from the side.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embedding tool according to the present invention.

FIG. 2 is a perspective view showing another embodiment of the embedding tool.

FIG. 3 is a perspective view showing a mounting process of the embedding tool.

FIG. 4 is a sectional view of an embedded structure in which a through hole is closed by an embedding tool and mortar.

FIG. 5 is a perspective view showing another embodiment of the mounting process of the burying tool.

FIG. 6 is a cross-sectional view showing another embodiment of a buried structure in which a through hole is closed by a burying tool and mortar.

FIG. 7 is a cross-sectional view showing another embodiment of a buried structure in which a through hole is closed by a burying tool and mortar.

[Explanation of symbols]

 2 Base 3 Supporting piece 4 Folded line part 5 Seal film 6 Positioning protrusion 8 Scale part 9 Adhesive part 10 Noncombustible material

Claims (7)

(57) [Claims] 1. A when deformed in a tubular shape, of a material comprising an elastic restoring force to the diameter direction to form a strip-like substrate, from one side edge of the lateral direction of the base body, the base body of the cylinder Condition
A plurality of support pieces projecting in the radial direction at predetermined intervals in a longitudinal direction when deformed into a shape, and a seal film is attached between the support pieces, thereby embedding a through hole in a slab. 2. The burying tool for a through-hole in a slab according to claim 1, wherein a bent portion is formed on the support piece. 3. An adhesive part is provided over at least one longitudinal direction of the front and back surfaces of the base.
Or a burying tool for a through hole in the slab according to 2. 4. The burying tool for a through-hole in a slab according to claim 1, wherein a positioning projection is protruded from the other side edge of the base in the short direction. 5. The burying tool for a through hole in a slab according to claim 4, wherein a scale portion is provided for indicating a distance from one side edge of the base in a projecting direction of the positioning projection. 6. The base body is formed in a cylindrical shape such that each support piece is directed to the center or outward around a pipe through which the burying tool of claim 1, 2, 3, 4 or 5 is passed through a through hole of a slab. A buried structure for a through hole in a slab, wherein the slab is inserted into a lower portion of the through hole in a deformed state and then mounted, and then the mortar is filled and cured. 7. The base body is formed in a cylindrical shape such that each support piece is directed to the center or outward around a pipe through which the burying tool of claim 1, 2, 3, 4 or 5 is passed through a through hole of the slab. In the deformed state, insert the lower part in the through hole and mount it.Furthermore, install a non-combustible material around the pipe above the through hole, and insert the lower end side into the upper part of the through hole. A buried structure for a through hole in a slab, characterized in that the mortar is filled and cured in the through hole.