JP2001262725A - Air-tight structure for ceiling penetration part for wiring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-tight structure for improving air-tight performance and construction efficiency in air-tight construction to a ceiling penetration part for inserting electric wiring especially provided inside a partition wall and a ceiling penetration part for inserting wiring for lighting for a ceiling in conducting air-tight construction to penetration parts for wiring bored in the ceiling. SOLUTION: In this air-tight structure, a first penetration hole 3 is bored in a ceiling surface 1a including an upper surface of a partition wall 1, an air-tight bushing 4 provided with an engagement part 4a to be engaged while it is tightly applied to the first penetration hole 3 without a gap, and a lock part 4b to become an insertion end for the engagement part 4a, and a first passage 4c for electric wiring in which a first protective piping 2a is inserted while it is tightly applied without a gap is engaged with the first through hole 3, thereby the first protective piping 2a is inserted into the first passage 4c for electric wiring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airtight structure for a wiring penetrating portion formed in a ceiling of a house or the like, and more particularly to an airtight structure for simplifying airtight construction and improving airtight performance.

[0002]

2. Description of the Related Art In order to provide an electric outlet on a partition wall, electric wiring is provided inside the partition wall. The electric wiring usually passes through the ceiling and passes through the ceiling on the upper surface of the partition wall. It is provided inside the partition wall.

As shown in FIG. 9, a partition wall 1 is composed of a partition frame 5 and a partition board 6 attached to the partition frame 5. The partition frame 5 is composed of partition runners 5a provided in upper and lower portions and extending in a direction perpendicular to the plane of the drawing and having a U-shaped cross section, and a plurality of studs vertically arranged between the partition runners 5a. Things. A through hole 20 for passing the electric wiring is formed at a predetermined location on the partition runner 5a.

[0004] The ceiling is constituted by a plurality of ceiling edges 7 extending in the direction perpendicular to the plane of the paper and a ceiling board 8 attached to the lower surface thereof. On the partition frame 5, the two ceiling ridges 7 are provided side by side, and an airtight sheet 9A having holes formed so as to match the through holes 20 is provided on the ceiling ridges 7 and the ceiling boards 8A. And the partition board 6
It is provided while being sandwiched between. This airtight sheet 9
A is provided to ensure airtightness between the inside of the partition wall 1 and the ceiling back 12.

[0005] The electric wiring 2 provided inside the partition wall 1 passes between the two ceiling margins 7 disposed above the partition board 6 through the ceiling back 12 and passes through the partition runner. The partition 5 is provided inside the partition frame 5 through the through hole 20 drilled in 5a. Then, the first protective pipe 2 a into which the electric wiring 2 is inserted and the through hole 20
Urethane is sprayed to ensure airtightness in the gap between

On the other hand, as shown in FIG. 10, the electric wiring 13 for the electric light on the ceiling includes a ceiling edge 7, a reinforcing plate 14 attached between them, and two ceiling edges 7. A reinforcing plate metal fitting 18 for fixing the reinforcing plate 14 to
It is composed of the reinforcing plate 14 and the ceiling board 8 stuck on the lower surface of the ceiling edge 7. A through hole 20 is formed in the ceiling board 8 and the reinforcing plate 14, and the electric wire 13 for the electric light and the second protection pipe 13a passing therethrough are passed therethrough. Wired. Then, urethane is sprayed to close the gap between the electric wire 13 for the light and the through-hole 20 to secure airtightness.

[0007]

However, the work of spraying urethane as described above requires time and labor since it is necessary to spray the urethane carefully and slowly so that the gap to be closed is completely closed. In addition, even if it is visually confirmed that the gap is completely closed, a small gap is often left in many cases.
That is, it is difficult to ensure airtightness. Furthermore,
After the urethane is sprayed, the length of the electric wiring or the like coming out of the ceiling may be adjusted by pulling the electric wiring or the like. In this case, the urethane must be sprayed again, which consumes extra time and labor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide an electric wiring provided inside a partition wall, particularly when an airtight construction is performed on a wiring penetrating portion opened in a ceiling. About the airtight construction of the ceiling penetration to pass through and the ceiling penetration to pass the wiring for the lighting of the ceiling,
An object of the present invention is to provide a hermetic structure for improving hermetic performance and construction efficiency.

[0009]

According to a first aspect of the present invention, there is provided an airtight structure for a wiring penetrating through a ceiling, wherein an electric wiring provided in a partition wall and a first electric wiring inserted through the electric wiring are provided. An airtight structure of a ceiling penetration portion through which a protection pipe passes, wherein a first through hole is formed in a ceiling surface including an upper surface of the partition wall, and the first penetration hole is fitted into the first penetration hole without any gap. An airtight bushing having a first electrical wiring passage through which the first protection pipe and the locking portion serving as an insertion end of the insertion portion and the first protection pipe are tightly fitted in the first through hole is fitted into the first through hole. And the first electric wiring passage
The protection pipe is inserted and provided.

According to a second aspect of the present invention, there is provided an airtight structure of a ceiling penetration portion of a wiring according to the first aspect, wherein an insertion guide portion having a cone shape is formed at a tip end side of the fitting portion. It is characterized by having been done.

According to a third aspect of the present invention, there is provided an airtight structure of a ceiling penetrating portion of a wiring, wherein the electric wire for a light and a second protective pipe passing through the electric wiring pass through the ceiling. A second through hole is formed in the reinforcing plate fixed between the second through hole, an airtight sheet piece is covered on a lower surface of the second through hole, and the second protective pipe is formed on the airtight sheet piece without a gap. A second electric wiring passage, which is inserted in close contact with the second through hole, is formed so as to have the same center as the second through hole, and a third through hole is formed at a position corresponding to the second through hole. The airtight sheet piece is stuck and provided on the field edge while sandwiching the airtight sheet piece.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An airtight structure A of a wiring penetrating part according to a first embodiment will be described below with reference to the drawings. As shown in FIG. 1 and FIG. 2 which is a bottom view of FIG. 1, the airtight structure A of the ceiling penetration portion of the wiring includes an electric wiring 2 provided in the partition wall 1 and a first electric wiring 2 inserted through the electric wiring 2.
Airtight structure of the ceiling penetration part through which the protection pipe 2a of
A first through-hole 3 is formed in a ceiling surface 1a including an upper surface of the partition wall 1, and a fitting portion 4a fitted into the first through-hole 3 in close contact with no gap and an insertion end of the fitting portion 4a. An airtight bushing 4 having a first electrical wiring passage 4c through which the locking portion 4b serving as a portion and the first protection pipe 2a are inserted in close contact with no gap is fitted into the first through hole 3, and This is a structure in which the first protection pipe 2a is inserted through the first electric wiring passage 4c. Note that a double-sided adhesive tape 4e is attached to the lower surface of the locking portion 4b. Alternatively, instead of attaching the double-sided adhesive tape 4e, an adhesive may be applied.

The first protective pipe 2a covers the electric wiring 2 to protect the electric wiring 2, and uses an insulating material or the like as a material.

The upper surface of the partition wall 1 is, for example, the upper surface of a partition runner 5a constituting the upper surface of the partition frame 5, and the upper surface of the partition runner 5a is provided with the first through hole 3a.
Are drilled.

The partition wall 1 is provided with the partition runner 5
a are arranged vertically, a plurality of studs extending vertically are arranged between them, and both ends are fixed to the partition runner 5a. The partition wall 1 is formed by attaching a partition board 6 to the partition frame 5.

In the present embodiment, the ceiling surface 1a is constituted by the partition runner 5a serving as the upper surface of the partition wall 1, and an airtight sheet 9A provided between the ceiling edge 7 and the ceiling board 8. I have.

The airtight sheet 9A is an elastically deformable foam made of a synthetic resin such as polyethylene or polypropylene. The airtight sheet 9A is provided below the two ceiling ridges 7 and is sandwiched between the ceiling boards 8 from below. By being slightly compressed, the space between the partition wall 1 and the ceiling back 12 is closed to ensure airtightness. A hole having substantially the same diameter as the first through hole 3 is formed at the position of the first through hole 3 formed in the partition runner 5a. Also, as shown in FIG.
Instead of the airtight sheet 9A, an airtight plate 9C provided with elastic foams 9a on both sides of the lower surface of the plate may be provided. When a weldable material such as an iron plate is used for the plate material 9C, the work efficiency can be improved by welding the same to the runner 5a and integrating them.

The airtight bushing 4 is an elastically deformable foam made of a synthetic resin such as polyurethane.
A fitting portion 4a fitted in the first through hole 3, an insertion guide portion 4d having a cone shape formed on the tip side of the fitting portion 4a, and a fitting portion formed on the base side of the fitting portion 4a; It has a locking portion 4b serving as an end (dead end of insertion), the electric wiring 2, and a first electric wiring passage 4c formed to pass through the first protective pipe 2a inserted therethrough.

The fitting portion 4a has an outer diameter slightly larger than the inner diameter of the first through hole 3, and this outer diameter is elastically deformed when the first through hole 3 is fitted into the first through hole 3. Is elastically deformed in the contracting direction. For this reason, the space between the fitting portion 4a and the first through-hole 3 is closely adhered over one circumference, and
It is completely closed. Therefore, airtightness is ensured at the location. Also, the diameter of the first through hole 3 is made larger than an appropriate value,
Even when airtightness cannot be secured with the fitting portion 4a, the double-sided adhesive tape 4e is attached to both the lower surface of the locking portion 4b and the surface (for example, the airtight sheet 9A) with which the locking portion 4b abuts indirectly. Are tightly closed without gaps, so that the airtightness is maintained between the lower surface of the locking portion 4b and the surface with which it indirectly abuts.

The first electric wiring passage 4c is formed with an inner diameter slightly smaller than the outer diameter of the first protection pipe.
When the first protection pipe 2a is inserted, the first protection pipe 2a is elastically deformed in a direction to increase in diameter, so that the first protection pipe 2a and the first electric wiring passage 4c are closed while being completely adhered. It will be in a state of loose. Therefore, airtightness is ensured at the location.

The insertion guide portion 4d is formed in a cone shape so that the insertion portion 4a can be easily inserted into the first through hole 3.

A description will now be given of the construction of the airtight structure A of the wiring penetrating portion and its surroundings according to the first embodiment.

First, as shown in FIG. 4, a partition runner mounting bracket 10 is provided between two ceiling ridges 7 located on the partition wall 1 with screws 11 or the like at a plurality of places at predetermined intervals. And attach it. This partition runner mounting bracket 10
Consists of a side plate 10a and a bottom plate 10b, which are formed by bending opposing portions of a substantially cross-shaped thin plate and facing upward, and disposing the side plate 10a between the ceiling edges 7 and
Both ends of Ob are fixed to the lower part of the ceiling ridge 7 with screws 11 or the like.

Next, an airtight sheet 9A is stuck from under the two ceiling ridges 7 and a plurality of partition runner mounting brackets 10 fixed therebetween. This is provided between the inside of the partition wall 1 and the ceiling back 12 to ensure airtightness.

Then, the partition runner 5a is fixed to the bottom plate 10b by using a screw 11 or the like, and a hole is formed in the airtight sheet 9A so as to match the first through hole 3 of the partition runner 5a. As shown in (1), the first protection pipe 2a previously inserted through the hermetic bushing 4 is inserted.

Finally, as shown in FIGS. 1 and 2, the airtight bushing 4 is inserted into the first through hole 3 until the locking portion 4b is locked to the partition runner 5a and the airtight sheet 9A. insert. At this time, the locking portion 4b
By applying the double-sided adhesive tape 4e attached to the lower surface of the airtight sheet 9A to the airtight sheet 9A, airtightness is ensured.

After that, the ceiling board 8 is moved to the ceiling edge 7.
However, the partition board 6 is stuck to the partition wall 1, and airtightness is maintained between the inside of the partition wall 1 and the ceiling back 12.

Hereinafter, an airtight structure B of the through-the-ceiling portion of the wiring according to the second embodiment will be described with reference to the drawings.
As shown in FIG. 6, the electric wiring 13 for a light and the ceiling penetration portion through which a second protective pipe 13a penetrating the electric wiring 13 for a light passes, the electric wiring 13 for a light and the electric wiring 13 is a hermetic structure of a ceiling penetration part through which a second protective pipe 13a passes, and a second penetration hole 15 is formed in a reinforcing plate 14 fixed between the ceiling edges 7 to form a second penetration hole. An airtight sheet piece 9B is covered on the lower surface of the second through hole 15 and a second electrical wiring passage 16 is inserted through the airtight sheet piece 9B while closely adhering the second protective pipe 13a without gap. Drilled so as to have the same center as the through hole 15 of
The third through hole 1 is located at a position corresponding to the second through hole 15.
A ceiling board 8 having a perforated 7 is provided on the bezel 7 while sandwiching the airtight sheet piece 9B.

When the reinforcing plate 14 is provided between the ceiling edges 7, as shown in FIG. 7, both sides of the reinforcing plate 14 are attached to the ceiling edges 7 by using metal fittings 18 for the reinforcing plate and screws 11. Fix it. Then, a second through-hole 15 is formed at a predetermined position with a slightly larger diameter than the second through-hole 15 so that the second protective pipe 13a can easily pass therethrough. The airtight sheet piece 9B is attached. As for the attachment, one side of the airtight sheet piece 9B is provided with adhesiveness and attached like a double-sided adhesive tape, or is attached using an adhesive or the like. The airtight sheet piece 9B is, similarly to the airtight sheet 9A used in the first embodiment, an elastically deformable foam made of a synthetic resin such as polyethylene or polypropylene or EPDM rubber.

Next, the second airtight sheet piece 9B attached to the reinforcing plate 14 is provided with a second hole having the same center as the second through hole 15 of the reinforcing plate 14 and an inner diameter smaller than the second protective pipe. The passage 16 for electric wiring is opened, and as shown in FIG. 8, the electric wiring 13 for the lamp and the second protective pipe 13a are passed. The second electric wiring passage 16 having a smaller diameter than the second protective piping 13a is opened in the airtight sheet piece 9B, so that the second electric wiring passage is inserted when the second protective piping 13a is inserted. Since the diameter of the second protection pipe 16 is increased and the second protection pipe 13a is in close contact with the second protection pipe 13a, the gap between the second electrical wiring passage 16 and the second protection pipe 13a is closed, and airtightness is secured.

Finally, as shown in FIG. 6, a third through hole 17 is also formed in the ceiling board 8 so as to match the second through hole 15, and the ceiling board 8 is connected to the ceiling area. Affix to edge 7. In this state, the airtight sheet piece 9B is sandwiched between the reinforcing plate 14 and the ceiling board 8, and the airtight sheet piece 9B is compressed on the upper and lower surfaces so that the reinforcing plate 14 is also provided on the upper and lower surfaces. And the ceiling board 8 to ensure tightness. As a result, since the airtightness is secured in the vertical direction from the airtight sheet piece 9B as well, the airtightness is secured between the room 19 and the ceiling 12.

[0032]

According to the first aspect of the present invention, a first through hole is formed in a ceiling surface including an upper surface of a partition wall, and the first through hole is closely adhered to the first through hole. The airtight bushing having a first electrical wiring passage through which the first protection pipe is inserted in tight contact with the first protection pipe and the locking portion serving as an insertion end of the first portion is inserted into the first airtight bushing. Of the first electric wiring, and
Is completely inserted between the inside of the partition frame and the ceiling to completely close the gap between the through hole and the airtight bushing and between the airtight bushing and the electrical wiring. can do. Also, since the airtight bushing into which the electric wiring is inserted is merely inserted into the first through hole, there is an advantage that the number of steps for airtight construction can be reduced. Further, there is an advantage that airtightness is ensured even if the electric wiring is pulled and moved after construction.

According to a second aspect of the present invention, there is provided an airtight structure of a ceiling penetration portion of a wiring according to the first aspect, wherein an insertion guide portion having a cone shape is formed at a tip end side of the fitting portion. Therefore, it has the same effect as the airtight structure of the ceiling penetrating portion of the wiring according to claim 1, and has an advantage that the airtight bushing can be reliably and easily inserted into the first through hole.

According to a third aspect of the present invention, in the airtight structure of the ceiling penetration portion of the wiring, a second penetration hole is formed in a reinforcing plate fixed between the ceiling edges, and a lower surface of the second penetration hole is formed in a lower surface of the second penetration hole. A second electric wiring passage, which covers the airtight sheet piece and penetrates the second protective pipe through the airtight sheet piece while keeping the second protective pipe in close contact therewith, is formed so as to have the same center as the second through hole. A ceiling board having a third through hole at a position corresponding to the second through hole is provided by sticking the airtight sheet piece to the edge of the ceiling board. Airtightness can be secured between the ceiling and the underside. In addition, there is an advantage that airtightness is ensured even if the electric wiring for a light is pulled and moved after construction.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an airtight structure of a ceiling penetration portion of a wiring according to a first embodiment.

FIG. 2 is a bottom view of FIG.

FIG. 3 is a view in which an airtight plate is provided instead of the airtight sheet in FIG.

FIG. 4 is an explanatory view of construction of a partition runner and a ceiling edge.

FIG. 5 is an explanatory diagram of construction of an airtight structure of a wiring penetrating portion through a ceiling according to the first embodiment.

FIG. 6 is a diagram illustrating an airtight structure of a ceiling penetration portion of a wiring according to a second embodiment.

FIG. 7 is an explanatory diagram of construction in an airtight structure of a ceiling penetration portion of a wiring according to a second embodiment.

FIG. 8 is an explanatory view of construction in an airtight structure of a wiring penetration portion through a ceiling according to a second embodiment.

FIG. 9 is an explanatory view according to a conventional example showing a conventional structure of a junction between an upper part of a partition wall and a ceiling.

FIG. 10 is an explanatory view according to a conventional example showing electric wiring of a light installed on a ceiling and a structure of the ceiling.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Partition wall 2 Electric wiring 2a 1st protective piping 3 1st through-hole 4 Hermetic bushing 4a Insertion part 4c 1st electric wiring passage 9B Hermetic sheet piece 13 Electric lighting electric wiring 13a 2nd protective piping 15 2nd 16 through hole for second electric wiring 17 third through hole

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kazuo Nakahara 1-1-88 Oyodonaka, Kita-ku, Osaka Sekisui House Co., Ltd. F-term (reference) 2E001 DD02 FA07 FA15 GA01 GA24 GA55 GA65 GA66 GA76 HB02 HD01 HD03 HD11 HE01 LA01 LA03 LA05 LA08 LA09 LA16 MA02 MA04 5G363 AA03 AA16 BA01 CA06 CA14 CB08 CB16 DB03 DB05

Claims (3)

[Claims] 1. An airtight structure of an electric wire provided in a partition wall and a ceiling penetration portion through which a first protective pipe passing through the electric wire passes, wherein a first surface is provided on a ceiling surface including an upper surface of the partition wall. A through-hole is formed, and a fitting portion to be fitted into the first through-hole with tight clearance and a locking portion serving as an insertion end of the fitting portion and the first protection pipe are tightly fitted to each other without gap. An airtight bushing having a first electric wiring passage to be inserted is fitted into the first through hole, and the first protective pipe is inserted through the first electric wiring passage. Airtight structure of the wiring penetration through the ceiling. 2. An airtight structure for a ceiling penetration part of a wiring according to claim 1, wherein an insertion guide part having a cone shape is formed at a tip side of said fitting part. 3. An airtight structure of a ceiling penetrating portion through which an electric wire for a light and a second protective pipe passing through the electric wire pass, wherein the second penetrating portion is provided on a reinforcing plate fixed between the ceiling edges. A second electric wiring passage is formed by forming a hole, covering a lower surface of the second through hole with a hermetic sheet piece, and inserting the second protective pipe through the hermetic sheet piece without any gap. The ceiling board, in which a third through hole is drilled at a position corresponding to the second through hole, is drilled so as to have the same center as the second through hole. The airtight structure of the wiring penetrating through the ceiling, characterized by being stuck and sandwiched.