JPH047473Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is installed at the tip of a ventilation duct facing the exterior wall of a building, with the base end touching the wall and the tip protruding from the wall. Regarding the vent cap.

<Prior Art> Conventional vent caps are known, for example, as shown in Japanese Utility Model Publication No. 19398/1982 or Japanese Utility Model Application Publication No. 71828/1983.

<Problems to be solved by the invention> Incidentally, vent caps are required to be of various sizes depending on the conditions imposed on them, and vent caps are particularly suitable for use in high-rise areas of buildings. In the case of , a larger amount of protrusion from the wall surface is required than usual due to special conditions in a high-rise location. For this reason, in the case of high-rise vent caps, a more robust installation is required. Therefore, like the vent cap in the prior art mentioned above, the ventilation duct (through hole, through hole)
If the installation state can only be obtained by inserting or fitting the cylinder part (ventilation cylinder, insertion cylinder part) into the cylinder, the installation strength is insufficient. Therefore, it is conceivable to provide the vent cap with a structure that can be fixed to the wall surface with screws, but the problem is how to form the part that receives the screws.
In other words, if the part that receives the screws is hidden, it is very inconvenient both in terms of construction and maintenance.Also, the strength of the wall around the tip of the ventilation duct is somewhat weak due to the installation of the ventilation duct. Since this is normal, it is preferable that the part that receives the screws is located away from the ventilation duct in order to avoid this slightly weaker part, but on the other hand, it is recommended that the part that receives the screws be located away from the ventilation duct. In such a case, the wall surface where the vent cap is attached is undesirable because it tends to become narrow due to the presence of various obstacles in the living room.

This idea was created in view of these circumstances, and is suitable for cases where a firm installation is required, such as for high-rise vent caps, and it can also be used in narrow spaces with surrounding obstacles. It is an object of the present invention to provide a vent cap that can be easily installed.

<Means for Solving the Problems> Specifically, the vent cap according to this invention is formed of a cap body and a flange body attached to the proximal end of the cap body, and the flange body is a short bottomed body. It has a cylindrical shape, and the side wall serves as a fixing part for fixing the cap body on the side surface of its proximal end, and a fitting hole is formed in the bottom part for fitting into the ventilation duct. ,
In addition, the fixed portion and the bottom portion are bulged radially in a direction along the wall surface at a plurality of locations at appropriate intervals, and screw receiving portions are provided at the bottoms of the bulged portions.

<Function> That is, as described above, the flange body is partially bulged out radially, and the base end is fixed to the wall surface with screws via the screw receiving part provided at the bottom of this bulged part. Therefore, a sufficient installation condition is ensured.

In addition, even if there is an obstacle in the surrounding area, the screw receiving part is formed in a partially bulged state as described above, so just by rotating it appropriately, the screw receiving part and the obstacle can be removed. interference with can be avoided. Therefore, it can be easily applied even in narrow places where there are obstacles around.

In addition, the flange body in which the screw receiving part is provided has the above-mentioned structure, and the flange body is partially bulged out to form the screw receiving part, so that great strength is given to the screw receiving part. This makes it possible to make the installation state using screws stronger, and it also makes it easier to integrally mold the flange body, and furthermore, the screws are located at the bottom of the hole surrounded by the bulging fixed part and the side surface of the cap body. Therefore, since the screws can be prevented from being directly exposed to wind and rain, durability can also be improved.

<Example> Hereinafter, an example of this invention will be described with reference to FIGS. 1 and 2.

This vent cap 1 mainly consists of a cap body 2,
and a flange body 3.

The cap body 2 is formed by combining an air baffle plate 4 and a ventilation cylinder 5. The air baffle plate 4 is made up of a wrapper-shaped edge 7, a fitting part 8, and a conical part 9, and is integrally formed. Further, the ventilation cylinder 5 is provided with a plurality of ventilation openings 10, and the distal end side adjacent to the ventilation openings 10 is a fitting receiving part 11 for fitting the fitting part 8 of the air baffle plate 4.
It is said that Then, the air baffle plate 4 and the ventilation cylinder 5 are coupled by spot welding the fitting portion 8 and the fitting receiving portion 11 that are in the fitted state.
Here, the width Wa of the fitting receiving part 11 is the width of the fitting part 8.
In terms of ventilation efficiency, it is preferable to make the width the same as or narrower than Wb. Furthermore, by using this structure to connect the air baffle plate 4 and the ventilation cylinder 5, the connection work is much simpler than in the conventional case where the two were connected using screws, etc. It is something.

The flange body 3 detachably receives the cap body 2, and has a fixing portion 1 for fixing the cap body 2.
3 and a bottom part 14, the bottom part 14 is provided with a fitting hole 16 with a reinforcing rib 15 formed on the periphery, and a base end part 17, that is, a ventilation duct 18. Two screw receiving portions 20 are provided at the portions that come into contact with the wall surface 19 when attached to the wall surface 19 and bulge out in a radial manner in the direction along the wall surface 19 at appropriate intervals from the periphery thereof. Further, the fixed portion 13 is also partially bulged in correspondence with the screw receiving portion 20, and the flange body 3 itself, which is a short cylinder with a bottom, has a partially bulged portion. In this way, the fixed part 13 is also partially bulged in order to facilitate processing when integrally molded, and also to provide great strength to the screw receiving part 20, making it easier to attach with screws. This is to make it stronger, and the screw 24 is placed at the bottom of the hole surrounded by the bulging fixing part 13 and the side surface of the cap body 2 to prevent the screw 24 from being directly exposed to wind and rain. This is to prevent it. In addition, 21 in the figure is a screw hole. Further, 22 is a screw hole for fixing the cap body 2 to the flange body 3 with a screw 23.

Below, the installation state of this vent cap 1 will be explained.

First, the flange body 3 is fitted into the ventilation duct 18 protruding from the wall surface 19 through the fitting hole 16, with the base end 17 of the flange body 3 in contact with the wall surface 19 and the distal end thereof protruding from the wall surface 19. Attach. At this time, if there is any obstacle around the ventilation duct 18 and this obstacle interferes with the screw receiving part 20, this interference is avoided by appropriately rotating the flange body 3.
In this case, the cap body 2 is attached to the flange body 3 in advance.
It may be attached before or later.

Next, the base end portion 17 of the flange body 3 is fixed to the wall surface 19 with screws 24 via the screw receiving portion 20,
Ensure that the installation is solid.

In this way, the vent cap 1 can be fully adapted to the case where a firm installation condition is required, such as in a high-rise building, and it can be easily installed even in a narrow place where there are obstacles in the surrounding area.

<Effects of the invention> As explained above, the vent cap according to this invention has a flange body that partially bulges out radially, and a screw receiving part is provided at the bottom of this bulge part.
Since the base end portion is fixed to the wall surface with screws via this screw receiving portion, the following effects are achieved.

(1) Since it can be secured with screws, a sufficient installation condition can be ensured.

(2) Even if there are obstacles in the surrounding area, they can be avoided by simply rotating the device as appropriate, and it can be easily installed even in narrow spaces with surrounding obstacles.

(3) Greater strength is given to the screw receiver,
The mounting condition with screws can be made stronger.

(4) Integral molding of the flange body becomes easier.

(5) Improved durability can be achieved since the screws used for fixing screws can be prevented from being directly exposed to wind and rain.

[Brief explanation of the drawing]

FIG. 1 is a schematic side sectional view showing the attached state of a vent cap according to an embodiment of the invention, and FIG. 2 is a schematic perspective view of the flange body. 1...Vent cap, 17...Proximal end, 18
... Ventilation duct, 19 ... Wall surface, 20 ... Screw receiver, 24 ... Screw.

Claims (1)

[Scope of Claim for Utility Model Registration] In a vent cap that is attached to the tip of a ventilation duct facing the exterior wall of a building, with the base end in contact with the wall and the tip protruding from the wall, the cap body: and a flange body attached to the base end of the cap body, and the flange body has a short cylindrical shape with a bottom, and the side wall fixes the cap body on the side surface of the base end. A fitting hole is formed at the bottom for fitting to the ventilation duct,
A vent cap characterized in that the fixed portion and the bottom portion are bulged radially in a direction along the wall surface at a plurality of locations at appropriate intervals, and a screw receiving portion is provided at the bottom of the bulged portion.