JP2002276813A - Mounting structure of cylindrical member with flange to wall surface opening of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a cylindrical member with flange installed on a wall surface opening of a building in which a beautiful appearance is not impaired and a position deviation is not generated at the time of mounting. SOLUTION: In the mounting structure of the cylindrical member with flange installed on the wall surface opening of the building, an elastic seal material is interposed between the flange part and a periphery part of the wall surface opening and a screw is penetrated through a side peripheral surface of the elastic seal material at an edge side of the flange part. Thereby, the side peripheral surface is fastened by the screw.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a flanged tubular member such as a vent or a vent installed at a wall opening of a building.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, in order to attach a flanged tubular member 10 such as an air vent or a ventilation port to a wall opening of a building, a space between a flange 10c and a periphery 100a of the wall opening is required. The elastic sealing material 1 is interposed, and is fitted into a wall opening provided with a play 3 wider than the outer periphery of the flanged cylindrical member 10. It was stopped by 2. The screw 2 penetrates the center of the cross section of the elastic sealing material 1 as shown in FIG. That is, the screw hole 1 in which the screw 2 is provided in the flange portion 10c
0h, through the elastic sealing material 1, and around the wall opening 1
When the tip of the screw 2 starts rotating, the elastic sealing material 1 around the screw 2 is caught in the screw hole 10h with the rotation of the screw 2, so that the screw 2 and the screw hole 1 are rotated.
Fill the gap between 0h surroundings. Then, in a state in which the screwing is completed, the elastic sealing material 1 is deformed by the pressing force of the screw 2 to fill a gap between the flange portion 10c and the wall surface opening peripheral portion 10a.

[0003]

However, as shown in FIG. 7, a screw hole 10 in which a screw 2 is provided in a flange 10c is provided.
h and the elastic sealing material 1 are inserted, the tip 2t of the elastic sealing material 1 abuts on the peripheral portion 10a of the wall opening, and the screw 2 rotates and the elastic sealing material 1 is rolled in as described above. The material 1 is once separated from the peripheral portion 100a of the wall opening. In this state, the screw 2 can be further rotated to insert the screw 2 straight. However, since the screw hole 10h is provided with a play 4 wider than the outer circumference of the screw 2,
When the screw 2 rotates, the screw of the screw 2 engages with or separates from the screw hole 10h, so that the screw 2 has its tip 2
t as a fulcrum, a force F perpendicular to the insertion direction
Receive v. For this reason, the screw 2 cannot be inserted straight, or the force Fv applied to the screw 2 is transmitted to the flanged tubular member, and the flanged tubular member 10 is moved by the play 3 provided between the flanged tubular member. In some cases, it was shifted from the expected position. Further, by involving the elastic sealing material 1, the width of the elastic sealing material 1 becomes larger around the screw 1, and as shown in FIGS.
c protruded from the outer edge and was not preferable in appearance. By disposing the elastic sealing material 1 around the screw hole 10h of the flange portion 10c, a gap may be formed between the elastic sealing material 1 and a wall surface, and a desired watertightness may not be obtained. Further, as shown in FIG. 9, the swollen elastic sealing material 1 deforms the flange portion 10c and a gap is formed between the elastic sealing material 1 and the wall surface, so that desired watertightness cannot be obtained, or the resilience of the elastic sealing material 1 is too strong. In some cases, the flange 10c may be damaged. In order to solve the above-mentioned problem, the present invention provides an elastic sealing material between a flange portion of a flanged tubular member installed at a wall opening of a building and a peripheral portion of the wall opening, and secures with a screw. In the mounting structure, the elastic sealing material does not protrude in the peripheral part after the cylindrical member is mounted, so that the aesthetic appearance is not impaired, and the flange is installed at the wall opening of the building that does not displace during installation An object of the present invention is to provide a mounting structure for a tubular member.

[0004]

In order to solve the above-mentioned problems,
The mounting structure of the flanged tubular member to the wall opening of the building of the present invention is, as described in claim 1, a mounting structure of the flanged tubular member installed at the wall opening of the building, An elastic sealing material is interposed between the flange portion and the peripheral portion of the wall opening, and the screw is screwed so that the screw penetrates the side peripheral surface of the elastic sealing material on the edge side of the flange portion. And Further, in the attachment structure of the flanged tubular member to the wall opening of the building according to claim 1, a cross section of the elastic seal material is formed in a trapezoidal shape, and It is characterized in that the bottom side is directed to the peripheral portion side of the wall surface opening. Further, the mounting structure of the flanged tubular member to the wall opening of the building according to claim 3 is the mounting structure of the flanged tubular member to the wall opening of the building according to claim 1 or 2. The elastic sealing material is a polymer material mainly composed of butyl rubber.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A tubular member with a flange, such as a ventilation port, installed at a wall opening of a building, which is used in the present invention, is made of a lightweight material such as polyvinyl chloride resin. Is provided with a flange so as to face the wall surface. The elastic sealing material is made of a polymer material having elasticity such as butyl rubber or foam, and is previously attached to the flange portion,
At the time of installation, it is interposed between the wall and the flange. Then, with the elastic sealing material interposed between the flange portion and the peripheral portion of the wall opening, the screw is fixed from the flange portion so as to pass through the side peripheral surface on the edge side of the flange portion of the elastic sealing material. I do. At this time, the cross section of the elastic sealing material is trapezoidal,
If the bottom side is provided around the wall opening, the screw passes through the outer edge of the flange portion of the side of the elastic sealing material. This makes it easier for the screw to pass through the edge of the flange on the side surface of the elastic seal material than in the case of using an elastic seal material having a rectangular cross section, and it is possible to suppress protrusion from the edge of the flange. .

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, the flanged tubular member installed at the wall opening is integrally formed from hard PVC, and has a depth of 40 cm, a height of 15 cm, and a width of 40 cm, and is erected on its side peripheral surface. And a flange having a height of 3 cm and a weight of about 1 kg. As shown in FIG. 1, the screw 2 is inserted through the flange 10c into a mounting groove 10m for mounting an elastic sealing material in advance on a surface facing the wall opening periphery 100a. Screw hole 10h is provided. The screw hole 10h is formed on the side peripheral surface 1 on the flange edge side of the elastic sealing material 1.
s is inserted near the edge of the flange 10c rather than the mounting groove 10m. In this embodiment,
To ensure that the screw 2 can pass through the side peripheral surface 1 s of the elastic sealing material 1 on the flange edge side, a screw hole is provided on the edge side of the tubular member with respect to the mounting groove 10 m of the elastic sealing material 1.
The screw 2 is not particularly limited as long as the screw 2 does not wind up the elastic sealing material 1. In addition, as the elastic sealing material 1 of the present embodiment, a butyl rod (bottom = 14 mm, top = 10 mm, height = 10 mm) having a substantially trapezoidal cross section is set so that the bottom is the peripheral side 100a of the wall opening. Into the mounting groove 10m. In the present embodiment, the cross section of the elastic sealing material is trapezoidal, the bottom side is disposed on the wall cylindrical member side, and the upper side is disposed in the mounting groove.However, the cross section is not limited to the trapezoidal shape. It may have a rectangular shape or a parallelogram shape. The structure of the elastic sealing material 1 in this embodiment is as follows.
As shown in FIG. 1, a polyethylene foam 1c having a circular cross section
Is provided so that butyl rubber 1r is provided. This butyl rubber relieves the stress applied to the flange when the tubular member is attached, and the polyethylene foam repels the compressive force at the time of attachment so that the sealing function works effectively. If there are no irregularities around the wall opening, all may be formed from butyl rubber.

The flanged cylindrical member provided with the elastic sealing material in the mounting groove of the flange portion as described above is fitted into the opening of the wall surface, and a screw is inserted through the screw hole so that the edge of the flange portion of the elastic sealing material is formed. Side peripheral surface was inserted. As described above, the flanged tubular member attached by the attachment structure of the present embodiment includes:
As shown in FIGS. 3 and 4, the elastic sealing material is not deformed and the tubular member is fixed to the wall tubular member, so that the appearance is not unsightly and the elastic sealing material is not unevenly arranged. The desired water tightness was obtained.

Next, a comparative test was performed on the mounting structure of this embodiment using a comparative example. As a comparative example, a conventional screw having a mounting structure in which the screw is inserted through the center of the cross section of the elastic sealing material is used. First, two cylindrical members with flanges were installed on the wall opening so as to have the mounting structures of the present example and the comparative example, respectively. Then, as shown in FIG.
At the point 0, an observation of the mounting state immediately after the mounting and 3 hours after the mounting and a hydrostatic pressure test under a 55 mm hydrostatic pressure were performed. In addition, the wall surface used in this test had an uneven surface (an unevenness H = 6 mm), and the measurement points in the examples and comparative examples were concave in order to make the measurement conditions uniform. Table 1 shows the results at the respective measurement points in the examples and comparative examples.

[0009]

[Table 1]

With respect to the appearance near the edge of the flange 10c of the attached flanged tubular member, in the embodiment, as shown in FIG. 2, the elastic sealing material 1 did not protrude from the edge of the flange 10c. On the other hand, in the comparative example, as shown in FIG. 8, the elastic sealing material 1 protruded from the edge of the flange portion 10c, and the appearance was unsightly. In addition, the flanged tubular member of the example could be fixed to a desired mounting position, but the position of the comparative example was shifted.

Further, in the hydrostatic pressure test, the water stop was reliably performed in the embodiment 3 hours after the installation of the cylindrical member, whereas the comparative example leaked water and could not reliably perform the water stop. Was.

[0012]

According to the mounting structure of the flanged tubular member installed at the wall opening of the building according to the present invention, the elastic sealing material used for fixing the ventilation port or the like to the wall surface is formed of the tubular member. Since it does not protrude, it does not impair the aesthetic appearance, and does not cause displacement during mounting. Further, since the elastic seal material is less deformed, extremely excellent watertightness can be secured.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view for explaining a mounting structure of a flanged tubular member according to an embodiment of the present invention.

FIG. 2 is a front view and a cross-sectional view of a flanged tubular member mounted by a flanged tubular member mounting structure according to an embodiment of the present invention.

FIG. 3 is a top view of a flanged tubular member attached by a flanged tubular member mounting structure according to an embodiment of the present invention.

FIG. 4 is a partially enlarged top view of the vicinity of a screw hole of the flanged tubular member mounted by the flanged tubular member mounting structure according to one embodiment of the present invention;

FIG. 5 is an explanatory perspective view of a conventional flanged tubular member.

FIG. 6 is a sectional view taken along line XX of a conventional tubular member with a flange.

FIG. 7 is an explanatory top view for explaining a mounting state of a conventional tubular member with a flange.

FIG. 8 is a front view and a cross-sectional view of a conventional flanged tubular member after being mounted.

FIG. 9 is a top view of a flanged tubular member attached to the periphery of a wall opening according to one embodiment of the present invention.

FIG. 10 is an explanatory front view for explaining a measurement position in a screw hole in order to perform a comparative test with a comparative example using a flanged cylindrical member according to an embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 elastic sealing material 1 s side peripheral surface of flange portion of elastic sealing material 2 tip of screw 2 t screw 3 play between flanged tubular member and wall opening 4 play between screw and screw hole 10 flanged tubular Member 10c Flange 10h Screw hole provided in the flange 10m Mounting groove 100 Wall 100a Wall opening periphery

 ──────────────────────────────────────────────────続 き Continued on front page (72) Inventor Minoru Yashiro 287 Kitayoshihara, Kasama-shi, Ibaraki Kanto Sekisui Industry Co., Ltd. F-term (reference) 3J040 AA02 AA12 AA15 AA17 BA03 EA16 EA25 FA06 FA08 HA03 HA11 HA15

Claims (3)

[Claims] 1. A mounting structure for a flanged tubular member installed at a wall opening of a building, wherein an elastic sealing material is interposed between the flange and a peripheral portion of the wall opening, and the screw is provided. Wherein the flanged cylindrical member is attached to an opening in a wall of a building, wherein the elastic sealing material is screwed so as to pass through a side peripheral surface of the flange portion on the edge side. 2. The building according to claim 1, wherein a cross section of the elastic sealing material is formed in a trapezoidal shape, and a bottom side of the elastic sealing material is directed to a peripheral portion of the wall surface opening. Mounting structure of a cylindrical member with a flange to the wall opening. 3. The elastic sealing material is formed of a polymer material mainly composed of butyl rubber.
Or a mounting structure of the tubular member with a flange to the wall opening according to 2.