JP2003074183A - Implement and method for forming vertical hole for inserting piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and accurately form a vertical hole for inserting piping in a prescribed place while enhancing convenience of a dirt-floor finish without protruding a component, etc., from a top surface of slab concrete, when a floor on the upper-floor side of a building is constructed. SOLUTION: An implement 2 for forming the vertical hole for inserting the piping comprises: a raising member 3 which passes through an approximately central part of an opening 1c of a plate material 1; a supporting member 4 for supporting the raising member 3 in an approximately vertical attitude so that an upper end of the raising member 3 can be located lower than the top surface of the slab concrete; and a sleeve part 5 which has a horizontal plane 51A, greater in width than the opening 1c, and a damming wall 52a almost corresponding to a height dimension from the horizontal plane 51A to the plate material 1.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a building,
For pipe insertion, which is suitable for forming vertical holes in the earth concrete when placing earth concrete on the upper surface of the ceiling structural member on the lower floor to construct the floor on the upper floor The present invention relates to a vertical hole forming device.

[0002]

2. Description of the Related Art When constructing a building such as a building, between the ceiling on the lower floor and the floor on the upper floor in connection with various facility works relating to electricity, water and ventilation of the building. It is necessary to form through-holes in the above, and formwork materials have been conventionally used to form the through-holes at the same time when pouring concrete into soil. Paper pipes, steel plates and steel pipes are generally used as this type of frame material. In such a conventional construction method, a paper tube or the like is arranged at a predetermined position of a plate material for forming a floor on the lower floor side, and earth concrete is placed on the upper surface of the plate material in that state. After the soil concrete is hardened, the paper tube and the like are removed to form a through hole.

[0003]

However, when such a paper tube or the like is used, the upper end of the paper tube or the like is placed on the top surface of the soil concrete in order not to lose sight of the location of the through hole when placing the soil concrete. It was necessary to make it stick out from.
For this reason, when the plasterer maintained and finished the top surface of the soil concrete to be a substantially horizontal surface (hereinafter, abbreviated as the soil finish), the protruding portion was an obstacle. In particular, since paper tubes are flammable, they must be removed after hardening of the soil concrete for fire protection, and once used, the paper tubes cannot be reused and the cost for forming through-holes increases. There was also the problem of an increase.

In order to solve the above problems, the present invention provides
Vertical holes for inserting pipes can be easily and accurately formed at predetermined locations, and parts do not project on the top surface of soil concrete, so work can be performed smoothly and without complexity during soil finishing. It is intended to provide a vertical hole forming instrument for pipe insertion, which is capable of performing the above-mentioned operation and improving the work efficiency.

[0005]

[Means for Solving the Problems] That is, the vertical hole forming device for inserting a pipe of the present invention is a building having a lower floor side having an opening for inserting a pipe at a predetermined position between a lower floor and an upper floor. When constructing the soil concrete that constitutes the floor on the upper floor by placing concrete of a predetermined thickness on the upper surface side of the plate material that is the ceiling structural member, a vertical hole communicating with the opening is formed in the soil concrete. A raising member having a height in the thickness direction of the soil concrete that is to be placed after penetrating substantially the center of the opening, and a horizontal member that is longer than the opening width of the opening. A support member having a piece, the horizontal piece being arranged at a position straddling the opening, and supporting the raising member in a substantially vertical posture so that the upper end of the piece is lower than the upper surface of the soil concrete, and the opening of the opening Has dimensions longer than the width And a sleeve portion having a horizontal surface that is supported by the upper end of the serial raising member and the blocking wall corresponding approximately to the height from the horizontal plane to the plate.

Here, "horizontal" of the horizontal plane includes not only the case of being completely horizontal but also the case of having a slight inclination.

With such a construction, the sleeve portion can be supported at a position lower than the upper surface of the soil concrete, so that no parts project on the upper surface of the soil concrete and the soil concrete can be removed during finishing. The complexity can be eliminated and the surface can be easily maintained flat. Furthermore, since the thickness of the soil concrete cast on the horizontal surface of the sleeve part and the thickness of the soil concrete cast on the upper surface side of the plate material are different, the color of the top surface of the soil concrete is different from that of other parts The position of the vertical hole forming device can be easily grasped. Therefore, when at least the raising member, the supporting member and the horizontal surface are removed by breaking the soil concrete at a portion having a different color, a vertical hole can be formed at the portion.

[0008] As another structure having the same effect as the above, in a building, a predetermined plate is used as a form on the upper surface side of the plate material that is disposed at a position corresponding to the ceiling on the lower floor side. It is for forming a vertical hole penetrating the earth concrete when constructing the earth concrete that forms the floor on the upper floor and the ceiling on the lower floor by pouring thick concrete. And a raising member having a height in the thickness direction of the soil concrete that is placed afterwards,
From a supporting member that supports the lower end of the raising member in a substantially vertical posture so that the upper end of the raising member is lower than the upper surface of the soil concrete, and a horizontal plane supported by the upper end of the raising member and its horizontal plane. A vertical hole forming instrument for pipe insertion, characterized in that the vertical hole forming instrument for pipe insertion is provided with a sleeve portion having a dam wall substantially corresponding to the height dimension to the plate material.

With such a structure, the same effect as described above can be obtained, and the labor for forming the opening in the plate member in advance can be omitted, so that the work efficiency can be further improved.

In particular, for convenience of handling,
It is preferable that the sleeve portion includes a lid member having the horizontal surface and a damming member having the damming wall.

In order to accurately position the dam member, a flange portion projecting downward is formed at an edge portion of the horizontal surface of the lid member, and the dam member is provided inside the collar member. It may be arranged.

In such a structure, if the lid member is detachably fixed to the upper end of the raising member, the lid member and the raising member can be easily fixed.

In a preferred mode of this case, a threaded portion is formed on at least the upper end portion of the raising member, and the lid member is fixed to the raising member by a nut member screwed with the threaded portion. An example is one in which a recess is formed on the upper surface so that the nut member attached from above can be accommodated at a position lower than the upper surface of the lid member. By doing so, the lid member and the raising member can be attached more easily, and the nut member does not project on the upper surface of the soil concrete, and obstacles at the time of soil finishing can be eliminated.

In order to easily fix the raising member and the supporting member, it is preferable that the lower end portion of the raising member is detachably fixed to the supporting member.

In particular, in order to easily remove the support member after pouring the soil concrete, the support member is preferably provided on the lower surface side of the plate material.

Concretely, as a method for forming a vertical hole for inserting a pipe between the upper and lower floors of a building, a height in a direction orthogonal to an upper direction with respect to a plate material arranged on a ceiling portion on the lower floor side is used. And a supporting member having a horizontal piece longer than the opening provided in the plate member, a horizontal surface longer than the opening width of the opening, and a weir that substantially corresponds to the height dimension from the horizontal surface to the plate member. By using a vertical hole forming instrument for pipe insertion comprising a sleeve portion having a stop wall, a horizontal piece of the supporting member is arranged at a position straddling the opening portion, and penetrated substantially in the center portion of the opening portion. The raising member is supported in a substantially vertical position by the supporting member so that the upper end of the raising member is located lower than the upper surface of the soil concrete, and is supported by the upper end portion of the raising member so that the horizontal surface of the sleeve portion serves as the opening. Confrontation While disposed in that position, after surrounding the opening from above by the horizontal and Sekitomekabe,
Concrete is placed on the upper surface side of the plate material to a height position exceeding the horizontal plane, and after crushing and removing the upper part of the horizontal plane in the soil concrete formed by hardening of the concrete, at least the raising member, support A method may be mentioned in which vertical holes communicating with the openings are formed in the soil concrete by removing members and horizontal surfaces.

Further, as another method for forming the vertical hole for inserting a pipe, a vertical direction is set upward in a direction orthogonal to a plate material which is temporally arranged at a portion corresponding to the ceiling portion on the lower floor side. Heightening member, a support member attached to the plate member for supporting the lower end portion of the height raising member, a horizontal plane supported by the upper end portion of the height raising member, and a weir approximately corresponding to the height dimension from the horizontal plane to the plate member. Using a vertical hole forming instrument for pipe insertion, which comprises a sleeve portion having a stop wall,
The supporting member is attached to a predetermined position on the upper surface of the plate material in which a vertical hole is to be formed, and the raising member is placed in a substantially vertical posture by the supporting member so that its upper end is lower than the upper surface of concrete to be cast later. And the horizontal surface of the sleeve portion is disposed at a position facing the predetermined position on the upper surface of the plate member while being supported by the upper end portion of the raising member, and the predetermined surface on the upper surface of the plate member is provided by the horizontal surface and the dam wall. After surrounding the place from above, place concrete on the upper surface side of the plate material to a height position exceeding the horizontal plane, and crush and remove the upper part of the horizontal plane in the soil concrete formed by hardening the concrete. By removing the vertical hole forming device for pipe insertion and the plate material, a vertical hole penetrating the soil concrete is formed. The method and the like.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

The vertical hole forming instrument 2 for pipe insertion of the embodiment is
As shown in FIG. 1 and FIG. 3, for example, in a high-rise building such as a building, on an upper surface side of a PC board 1 which is a board material that constitutes a ceiling structure member on the lower floor side, for example, an earth concrete 7 having a thickness of about 80 mm. When installing the floor and building the floor on the upper floor side,
It is used for forming a vertical hole for pipe insertion (hereinafter, abbreviated as vertical hole) S by arranging the plate 1 at a predetermined position.
The PC board 1 is a general one used at a construction site or the like, and in this embodiment, a substantially circular opening 1c having an opening width X1 for inserting a pipe is formed at a predetermined location. ing.

Concretely, this vertical hole forming instrument 2 for inserting a pipe
Is composed of a raising member 3, a supporting member 4, and a sleeve portion 5.

The raising member 3 has a threaded portion 31 on the entire outer peripheral surface.
It is a general metal screw shaft having a predetermined length formed with.

The support member 4 has an opening width X of the opening 1c.
1. An L-shaped steel material in which a rising piece 4a and a horizontal piece 4b are integrally formed by bending a sheet metal having a dimension longer than 1. The lower end portion of the raising member 3 is approximately at the center of the horizontal piece 4b. An insertion hole 4c is formed to allow the insertion of 3a.

The sleeve portion 5 includes a lid member 51 and a dam member 5.
2 and. The lid member 51 is, for example, an integrally molded product of synthetic resin, and has a substantially flat disk-shaped horizontal wall 51a having a diameter X2 larger than the opening width X1 of the opening 1c of the PC board 1 and the entire edge portion thereof. In, there is a flange portion 51b protruding downward. The upper surface of the horizontal wall 51a is set as the horizontal surface 51A. A cylindrical recessed portion 51c is formed in the central portion of the horizontal wall 51a,
An insertion hole 51d through which the upper end portion 3b of the raising member 3 can be inserted is formed in a substantially central portion of the bottom surface of the recess 51c. On the other hand, the dam member 52 is, for example, a synthetic resin integrally molded product having a cylindrical shape having a diameter substantially the same as the inner diameter of the flange portion 51b, and is attached to the upper surface 1b of the PC board 1 and the raising member 3. A peripheral wall having a height corresponding to the height of the horizontal wall 51a is used as a dam wall 52a. In this embodiment, the dam wall 52a has a height of about 60 mm.

Next, a method of using the pipe insertion vertical hole forming device 2 will be described with reference to FIGS.

With the PC board 1 preliminarily arranged as a ceiling structure member on the lower floor side, the dam member 52 is provided so that the dam wall 52a surrounds the opening 1c of the PC board 1 inside. It is placed on the upper surface 1b of the plate 1. Next, the nut member 6
3 is screwed to a predetermined position on the upper end portion 3b of the raising member 3 on the lower surface side of the lid member 51, and the upper end portion 3b of the raising member 3 is formed in a recess 51c of the lid member 51.
The nut members 64 and 65 are fixed to the upper end portion 3b of the raising member 3 while protruding from d and housed in the recess 51c. At this time, the dam member 52 is the flange portion 51 of the lid member 51.
It is placed just inside b. On the other hand, the lower end portion 3a of the raising member 3 is inserted into the insertion hole 4c in a state where the nut member 62 is screwed onto the lower surface 3a of the support member 4, and the lower end of the raising member 3 protruding downward from the insertion hole 4c. The nut member 61 is fixed to the portion 3a. By doing so, the raising member 3 is supported in a substantially vertical posture.

Next, the soil concrete 7 is cast on the upper surface 1b of the PC board 1 to a thickness of about 80 mm. At this time, the lid member 51 and the dam member 52 prevent the dirt concrete 7 from entering the vertical hole S, and a space for the vertical hole S is secured. By doing so, since no component projects on the upper surface 7a of the soil concrete 7, it is possible to avoid complexity at the time of finishing the soil. Upper surface 1b of PC board 1
The height dimension Y1 of the soil concrete 7 placed on the floor is approximately 8
While the height dimension Y2 from the upper surface 1b of the PC board 1 to the upper surface 7a of the soil concrete 7 is about 20 mm, the height dimension Y2 is about 20.
Since it is mm, as shown in FIG.
After curing, the surface color K1 of the earth concrete 7 above which the vertical hole forming device 2 for pipe insertion is arranged is more than the color K2 of the surface of the earth concrete 7 placed on the upper surface of the PC board 1.
Is thin, and the position of the vertical hole forming instrument 2 for pipe insertion can be easily grasped. Therefore, the soil concrete 7
After curing, the upper surface of the light-colored portion K1 is hammered into the soil concrete 7 to break up and remove it, and when all the members are removed in the reverse order of the above, as shown in FIG. , A vertical hole S communicating with the opening 1c of the PC board 1 is formed. In this case, since the dam member 52 is an integrally molded product of synthetic resin, it is not always necessary to remove the dam member 52 after placing the soil concrete 7 for fire protection, and the dam member 52 is directly embedded in the soil concrete 7. It doesn't matter. Also, the removed member can be reused, which helps in cost reduction.

A pipe P having a diameter width corresponding to the opening width X1 of the opening 1c is inserted into the opening 1c through the vertical hole S thus formed in the soil concrete 7. At that time, it is advisable to fill the gap created between the pipe P and the soil concrete 7 or the dam member 52 with mortar M or the like as shown in FIG.

As a first modification of this embodiment,
At the construction site of low-rise buildings such as general houses, PC board 1
Instead of, for example, a case of using a veneer plate 101 having a thickness of approximately 12 mm will be described below with reference to FIGS. The veneer plate 101 has an opening 101c formed at a predetermined position where a pipe is inserted, similar to the case of the PC plate.

Specifically, the pipe insertion vertical hole forming device 102 of the present modified example comprises a raising member 103, a supporting member 104, and a sleeve portion 105. Also in this modification, the sleeve portion 105 is composed of a lid member 1051 and a dam member 1052.

The support member 104 is a flat steel material forming a horizontal piece 104a which is longer than the opening width of the opening 101c formed in the veneer plate 101 and shorter than the inner diameter of the dam member 106, and screw holes 104b are formed in the vicinity of both ends thereof. Are drilled respectively. The raising member 103 and the lid member 1051
The damming member 1052 has substantially the same configuration as the raising member 3, the lid member 51, and the damming member 52 in the above-described embodiment, and thus the description thereof will be omitted.

A method of using the pipe insertion vertical hole forming instrument 102 in construction work will be described.

First, the supporting member 104 is placed on the upper surface of the veneer plate 101 so as to straddle the opening 101c formed in the veneer plate 101, and the screw holes 104b formed near both ends of the horizontal piece 104a. Wood screw 104
The support member 104 is fixed to the veneer plate 101 by screwing the respective c. Next, the dam member 106 is
The dam wall is placed on the upper surface of the veneer plate 101 so as to surround the opening 101c of the veneer plate 101 and the horizontal piece 104a of the support member 104 inside. The following procedure is almost the same as in the above embodiment. Then, after the soil concrete is hardened, the top surface of the light-colored portion is crushed and removed by hammering the upper surface of the portion, and when all the members are removed, the vertical portion communicating with the opening portion 101c of the veneer plate 101 is communicated. The hole S is formed.

In this modified example as well, it is possible to obtain substantially the same effects as in the above embodiment. Furthermore, since the veneer board 101 is cheaper than the PC board 1, cost reduction can be effectively achieved.

In this modification, the opening 101c is formed.
You may use the veneer board 101 which does not have. In this case, the support member 104 has a nut member 1062 integrally rigidly connected to the upper surface of the substantially central portion thereof to form an insertion hole communicating with the screw hole of the nut member 1062 and inserting the lower end portion 103a of the raising member 103. ing. Then, the support member 1 is directly attached to a predetermined position on the upper surface of the veneer plate 101 where the vertical hole S is to be formed.
After fixing 04, the vertical hole S can be formed by performing the work in the substantially same procedure as described above and finally removing the veneer plate 101. Even in such a case, the same effect as described above can be obtained, and further, since the labor for forming the opening portion 101c in the veneer plate 101 can be omitted, the work efficiency can be improved. . Moreover, since the nut member 1061 is not used by directly mounting the support member 104 on the upper surface of the veneer plate 101, the number of parts and the cost can be reduced. On the other hand, since the supporting member 104 has the above-described configuration, the lower end portion 103a of the raising member 103 can be firmly supported while being inserted into the insertion hole of the supporting member 104.

Further, a second modification of this embodiment will be described below with reference to FIGS. In this modified example, instead of the PC plate 1, a veneer plate 2 having a thickness of, for example, about 12 mm, which does not have an opening at a predetermined position where a pipe is inserted, is used.
01 is used. Specifically, the pipe insertion vertical hole forming device 202 of the present modification includes a raising member 203, a supporting member 204,
It is composed of a sleeve portion 205. Also in this modification, the sleeve portion 205 is composed of a lid member 2051 and a dam member 2052.

The support member 204 has a nut member 204e integrally rigidly attached to the upper surface at a substantially central portion thereof.
a horizontal piece 204a having an insertion hole 204f communicating with the screw hole formed in e and allowing the lower end portion 203a of the raising member 203 to be inserted, and a vertical piece extending downwardly from both ends of the horizontal piece 204a in a substantially vertically bent manner. A steel material having 204b and an extension piece 204c that bends outwardly from the lower end of the vertical piece 204b and extends in the horizontal direction.
Screw holes 204d are formed in the vicinity of both ends. The padding member 203, the lid member 2051, and the dam member 2052 have substantially the same configurations as the padding member 3, the lid member 51, and the dam member 52 in the above-described embodiment, and thus the description thereof will be omitted.

A method of using the pipe insertion vertical hole forming device 202 in construction work will be described.

First, blackening is carried out at a predetermined position on the upper surface of the veneer plate 201 forming the vertical hole S in a substantially cross direction, and the supporting member 204 is placed so that the through hole 204f is located above the point where the black ink L intersects. After mounting, the wood screw 204g is inserted into the screw holes 204d formed near both ends of the horizontal piece 204a.
The support member 204 is fixed to the veneer plate 201 by respectively screwing. Next, the dam member 206 is placed on the upper surface of the veneer plate 201 so that the dam wall surrounds the support member 204 inside. The following procedure is almost the same as in the above embodiment. The insertion hole 20 of the support member 204
The lower end portion 20 of the raising member 203 protruding downward from 4f
It is not necessary to use a nut member for fastening to 3a. Then, after hardening the soil concrete, the upper surface of the light-colored portion is crushed and removed by hammering the upper surface of the portion, and all the members are removed, and the veneer plate 201 is further removed. Has been formed.

In this modified example as well, it is possible to obtain substantially the same effect as that of the above-described embodiment, and it is possible to omit the work of forming an opening portion in the veneer plate 201 in advance, and also in the substantially cross direction. Since the center point of the vertical hole S to be formed can be easily grasped by performing the black ink striking, the support member 204 can be easily positioned and the work efficiency can be improved.

Further, in the construction work for constructing a high-rise building such as a building, a PC board is mainly used for a floor or a ceiling in many cases in consideration of load-bearing property, whereas a general house is used. Considering that there are relatively many cases where a veneer board is used for the same part when building a low-rise building, the first and second modified examples are the work efficiency when building a general house or the like. It is very practical as a means for promoting the above, and has a wide range of uses, and is preferably used.

The configuration of the present invention is not limited to that described above. For example, even if the raising member does not have a threaded portion on the entire outer peripheral surface, it is sufficient if at least the upper end portion and the lower end portion have a threaded portion, and the height of the raising member is the same as the thickness of the soil concrete. It may be adjusted by cutting correspondingly. Further, the lid member and the dam member may be made of nonflammable materials, and are not limited to synthetic resin integrally-molded products, but metal products can also be used. Furthermore,
The dam wall is not limited to a cylindrical shape and may be a polygonal shape. Further, the sleeve portion may be formed by integrally forming the lid member and the dam member. In this case, all the members will be removed after the soil concrete has hardened.
Further, plastic or sheet metal cut into an appropriate size may be placed at a position covering the opening on the upper surface of the concave portion of the lid member. This makes it possible to easily prevent the soil concrete from entering the recess.

In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0043]

The present invention is carried out in the form as described above, and has the following effects.

That is, according to the pipe insertion vertical hole forming device of the present invention, since the sleeve portion can be supported at a position lower than the upper surface of the soil concrete, the space for the vertical hole is left inside the sleeve portion. At the same time, parts and the like do not project onto the top surface of the cast concrete. As a result, it becomes possible to eliminate the complexity of finishing the soil concrete by flattening the surface of the soil concrete. Furthermore, because the thickness of the soil concrete cast on the horizontal surface of the sleeve part and the thickness of the soil concrete cast on the upper surface side of the plate material are different, the color of the top surface of the soil concrete is different and the vertical hole forming device for pipe insertion The position can be easily grasped. Then, by removing each member after breaking the soil concrete in the light-colored portion, a vertical hole for inserting a pipe can be formed in the portion.

In particular, by constructing the sleeve portion from the lid member and the dam member, convenience in handling can be improved.

Further, since the flange portion is formed on the lid member and the blocking member is arranged inside the flange portion, the blocking member can be accurately positioned.

Further, since the lid member is detachably fixed by the screw portion and the nut member provided on the raising member,
The lid member and the raising member can be easily attached and fixed, and in particular, by forming a recess that can accommodate the nut member at a position lower than the upper surface of the lid member, the nut member projects onto the upper surface of the soil concrete. Without doing this, the complexity of finishing the dirt floor can be eliminated.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a usage mode of an embodiment to which the present invention is applied.

FIG. 2 is a perspective view of the same embodiment after hardening of soil concrete.

FIG. 3 is a cross-sectional view of the same embodiment after placing concrete in soil.

FIG. 4 is a cross-sectional view after inserting the pipe according to the embodiment.

FIG. 5 is an exploded perspective view showing a usage mode of a first modified example of the same embodiment.

FIG. 6 is a cross-sectional view showing the same modified example after placing concrete in the soil.

FIG. 7 is an exploded perspective view showing a usage state of a second modified example of the same embodiment.

FIG. 8 is a cross-sectional view after placing concrete in the soil showing the same modified example.

[Explanation of symbols]

1 ... PC board (plate material) 1c, 101c ... opening 2, 102, 202 ... Vertical hole forming device for pipe insertion 3, 103, 203 ... Raising member 4, 104, 204 ... Support member 5, 105, 205 ... Sleeve part 51, 1051, 2051 ... Lid member 51A ... Horizontal surface 51b ... Tsubabe 51c ... recess 52, 1052, 2052 ... Dam member 52a ... weir 7 ... Soil concrete

Claims (10)

[Claims] 1. In a building, concrete of a predetermined thickness is cast on the upper surface side of a plate material which is a ceiling structural member on the lower floor side having an opening for inserting a pipe at a predetermined position between the lower floor and the upper floor. It is for forming a vertical hole communicating with the opening in the soil concrete when constructing the soil concrete that constitutes the floor on the upper floor side, and penetrates the substantially central portion of the opening. And a padding member having a height in the thickness direction of the concrete to be placed later, and a horizontal piece having a length longer than the opening width of the opening, and the horizontal piece is arranged at a position straddling the opening A supporting member that supports the member in a substantially vertical posture so that the upper end of the member is lower than the upper surface of the soil concrete, and is supported by the upper end of the raising member that has a dimension longer than the opening width of the opening. The horizontal plane and its horizontal plane To a plate member, and a sleeve portion having a dam wall substantially corresponding to a height dimension from the plate member to the plate member. 2. In a building, a concrete material of a predetermined thickness is placed on the upper surface side of a plate material that is disposed at a position corresponding to the ceiling portion on the lower floor side, and the plate material is used as a formwork to form an upper floor side. It is for forming a vertical hole that penetrates through the soil concrete when constructing the soil concrete that constitutes the floor and the ceiling on the lower floor side. A raising member having a height in a thickness direction, a supporting member for supporting a lower end portion of the raising member in a substantially vertical posture so that an upper end of the raising member is positioned lower than an upper surface of the soil concrete, and the raising member And a sleeve part having a horizontal surface supported by the upper end of the pipe and a dam wall substantially corresponding to the height dimension from the horizontal surface to the plate material. 3. The pipe insertion vertical hole according to claim 1, wherein the sleeve portion is composed of a lid member having the horizontal surface and a dam member having the dam wall. Forming instrument. 4. A flange portion projecting downward is formed at an edge of a horizontal surface of the lid member, and the dam member is disposed inside the flange portion. Item 1, 2
Or the vertical hole forming instrument for pipe insertion according to 3. 5. The lid member is detachably fixed to the upper end portion of the raised member.
The vertical hole forming instrument for pipe insertion according to 3, 4, and 5. 6. A threaded portion is formed on at least an upper end portion of the raising member, and the lid member is fixed to the raising member by a nut member screwed with the threaded portion, and is attached to an upper surface of the lid portion from above. 6. The vertical hole forming instrument for pipe insertion according to claim 5, wherein a concave portion capable of accommodating the nut member to be accommodated is formed at a position lower than the upper surface of the lid member. 7. The lower end portion of the raised member is detachably fixed to the support member.
The vertical hole forming instrument for pipe insertion according to 2, 3, 4, 5 and 6. 8. A vertical hole forming instrument for pipe insertion according to claim 1, 3, 4, 5, 6, or 7, wherein the supporting member is arranged on the lower surface side of the plate member. 9. A raising member having a height in a direction orthogonal to an upward direction with respect to a plate member arranged on a ceiling portion on the lower floor side, and a supporting member having a horizontal piece longer than an opening provided in the plate member. Using a pipe insertion vertical hole forming device comprising a horizontal plane longer than the opening width of the opening and a sleeve section having a dam wall substantially corresponding to the height dimension from the horizontal plane to the plate material, A method for forming a vertical hole for pipe insertion between upper and lower floors of a building, wherein a horizontal piece of the supporting member is arranged at a position straddling an opening, and the horizontal piece is penetrated to a substantially central portion of the opening. The raising member is supported in a substantially vertical posture by the supporting member so that the upper end of the raising member is located lower than the upper surface of the soil concrete, and is supported by the upper end of the raising member so that the horizontal surface of the sleeve portion faces the opening. To position After arranging and surrounding the opening from above by the horizontal plane and the dam wall, concrete is placed on the upper surface side of the plate material to a height position exceeding the horizontal plane, and the concrete is hardened in the soil concrete. After crushing and removing the upper part of the horizontal surface, at least the raising member, the supporting member and the horizontal surface are removed to form a vertical hole communicating with the opening in the soil concrete. Method for forming a general vertical hole. 10. A raising member having a height in a direction orthogonal to an upward direction with respect to a plate material that is temporally arranged at a place corresponding to a ceiling portion on a lower floor side, and a lower end portion of the raising member attached to the plate material. A vertical hole for pipe insertion, comprising: a supporting member for supporting the upper surface of the raising member; and a sleeve portion having a horizontal surface supported by the upper end portion of the raising member and a dam wall substantially corresponding to the height dimension from the horizontal surface to the plate material. A method for forming a vertical hole for inserting a pipe between upper and lower floors of a building using a forming tool, wherein the supporting member is attached to a predetermined position on the upper surface of the plate material in which the vertical hole is to be formed, and the raising is performed. The member is supported in a substantially vertical position by the support member such that the upper end of the member is lower than the upper surface of the concrete to be cast later, and the upper end of the raising member supports the member so that water of the sleeve part A flat surface is arranged at a position facing the predetermined location on the upper surface of the plate material, and the horizontal surface and the dam wall surround the predetermined location on the upper surface of the plate material from above, and then a height exceeding the horizontal surface on the upper surface side of the plate material. After placing concrete up to the specified position and crushing and removing the upper part of the horizontal plane in the soil concrete formed by hardening the concrete, removing the vertical hole forming instrument for pipe insertion and the plate material A method for forming a vertical hole for inserting a pipe, which comprises forming a vertical hole penetrating the pipe.