JPH05242749A - Bushing - Google Patents

Abstract

PURPOSE:To provide a bushing which never hurts the appearance, and secures the water tightness and the like. CONSTITUTION:Between permeation holes 12 and 13 at the opposing positions formed on both panels 10 and 11 respectively, the cylindrical part of a bushing 14 is placed, and a flange form part 14a of one end of the cylindrical part is abutted to cover the circumference of the one side penetration hole 12. Furthermore, since a circular groove 14b at the other end is inserted into the other side permeation hole 13, a water invasion from the outer side into the both panels is never generated at least through the permeation holes 12 and 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a bushing used for inserting, insulating, holding, etc. a connecting cord for a ventilation fan.

[0002]

2. Description of the Related Art Heretofore, this type of bushing has been used for ventilation fans installed in bathrooms of general houses, for example, Japanese Patent Laid-Open No. 63-63.
It is known for inserting a connecting cord of a ventilation fan as described in Japanese Patent No. 251548.

A bushing provided on a ventilation fan in such a bathroom is generally attached to a through hole 2 formed in one corner of a ventilation fan main body panel 1 as shown in FIGS. 2 and 3. In this case, the main body panel 1 is formed in a rectangular dish shape, and the bushing 3 fitted in the through hole 2 has a substantially flat shape.
It is formed in a ring shape.

The bathroom wall panel 4 to which the main body panel 1 is fixed is provided with a through hole 5 at a position facing the through hole 2 and a connecting cord 6 inserted into the bushing 3.
Extend between the bathroom wall panel 4 and the outer wall 7.

A gap 8 is inevitably formed between the main body panel 1 and the outer edge of the bathroom wall panel 4 in terms of mounting accuracy and the like. 9 is a fan body.

[0006]

However, in the mounting structure of the bushing 3 configured as described above,
Since the external environment is often humid and flooded,
For example, when the water W from the skimmer 8 is generated, the water W infiltrates between the bathroom wall panel 4 and the outer wall 7 through the through hole 5, and therefore, the patch material inside the wall panel 4 is applied. It causes the mold to mold.

In addition, since the main body panel 1 and the peripheral outer edge of the wall panel 4 are not provided in a relationship of being located in a flat surface, it is extremely difficult to perform watertight caulking, and provisionally caulking is performed. Even if it is forcibly applied, the appearance will be poor, which is not preferable from the viewpoint of indoor beauty.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a bushing capable of ensuring water tightness without impairing the appearance.

[0009]

In order to achieve the above-mentioned object, the present invention is provided between both panels which are formed in a cylindrical shape as a whole, and through holes are formed so as to face each other.
The annular end on one end side in the longitudinal direction is brought into contact with the periphery of the through hole portion of one panel, while the annular end on the other end side in the longitudinal direction is engaged with the through hole portion of the other panel in a fitted state. It is characterized by

[0010]

In the structure of the present invention, the bushing has the cylindrical portion interposed between the through-hole portions formed at both panels and facing each other. Moreover, one end of the cylindrical portion abuts so as to cover the periphery of one through hole portion, and the other end is fitted into the other through hole portion, so that at least the outside through the through hole portion It is possible to effectively prevent water from entering.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the bushing according to the present invention will be described below with reference to FIG.

In FIG. 1, reference numeral 10 is a wall panel of a bathroom or the like, and a rectangular dish-shaped ventilation fan main body panel 11 is attached to the wall panel 10, and a through hole is fitted in one corner of the main body panel 11. A joint hole 12 is formed. Further, a through hole 13 which is a through hole portion is formed in the wall panel 10 at a position substantially facing the fitting hole 12.

A bushing 14 made of an insulating material is provided between the wall panel 10 and the main body panel 11, and the bushing 14 has a cylindrical shape as a whole. A flange portion 14a is formed on one end side (wall panel 10 side) of the cylindrical portion, and an annular groove 14b is formed on the other end side (main body panel 11 side).

The flange portion 14a is in contact with the surface of the wall panel 10 so as to cover the periphery of the through hole 13 of the wall panel 10, and the annular groove 14b is elastically fitted in the fitting hole 12 of the main body panel 11. is doing.

On the other hand, although a code hole 14c is formed in the bushing 14, the code hole 14c is formed in a small-diameter circular insertion hole 14cα near the annular groove 14b, and the end of the insertion hole 14cα is formed. From the edge to the flange portion 14a, an opening hole 14cβ whose diameter is gradually increased in the direction is formed.

A cord 15 is inserted through the cord hole 14c, and caulking 16 is provided around the outside of the insertion hole 14cα.

Since this embodiment is constructed as described above, when the cord 15 is inserted into the bushing 14, both longitudinal ends of the bushing 14 can be made sufficiently watertight, that is, a flange shape. Watertightness can be ensured on the side of the portion 14a by pressure contact with the surface of the wall panel 10, and on the side of the annular groove 14b by elastically fitted state in the fitting hole 12.

Moreover, since the caulking 16 can be applied to the end portion of the bushing 14 on the main body panel surface side, that is, the inner edge portion of the insertion hole 14cα, the watertight state becomes more complete.

Further, the bushing 14 has an opening hole 14
Since cβ is formed, it is convenient because it is possible to absorb a dimensional error or the like in the facing positions of the fitting hole 12 and the through hole 13 formed in both panels 10 and 11, respectively.

In addition, the bushing 14 includes both panels 10,
Since it is interposed between 11, the reinforcing action against external pressure from the main body panel 10 side can be performed.

As a matter of course, the present invention is not limited to the above embodiment, and various design changes and the like made within the scope of the present invention are also included in the scope of the present invention.

[0022]

As described above, according to the present invention,
It is formed in a cylindrical shape as a whole and is provided between both panels in which through holes are formed so as to face each other, and one end side annular end in the longitudinal direction is brought into contact with the periphery of the through hole of one panel. On the other hand, since the annular end portion on the other end side in the longitudinal direction is engaged with the through hole portion of the other panel in a fitted state,
The through holes formed in both panels can ensure sufficient watertightness at both ends of the bushing. Moreover, caulking can be performed easily and aesthetically at the end of the cylindrical portion, and as a result, the watertightness can be ensured more sufficiently.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a conventional ventilation fan equipped with a bushing.

FIG. 3 is a front view of a ventilation fan to which a conventional bushing is attached.

[Explanation of symbols]

 10 wall panels, 11 ventilation fan main body panel, 12 fitting holes (through holes), 13 through holes (through holes), 14 bushings.

Claims (1)

[Claims] 1. A cylindrical member having a cylindrical shape as a whole and provided between both panels in which through holes are formed so as to face each other, and one end side annular end in the longitudinal direction of the through holes of one panel is provided. A bushing characterized in that, while being brought into contact with the surroundings, the other end side annular end portion in the longitudinal direction is engaged with the through hole portion of the other panel in a fitted state.