JPS6310422Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a weather cover for a ventilation fan, which is provided on an outdoor wall to cover the ventilation opening of the ventilation fan.

Figure 1 shows a conventional example of this type of weather cover. In the figure, 1 is a ventilation hole provided in a wall surface 2, 3 is a connecting pipe inserted into the ventilation hole 1 and fixed to the wall surface 2, and 4 is a connection tube. The cover body 5 is attached to the flange portion 3a of the pipe 3 with bolts 5 and forms a vent hole 6 at the bottom.The cover body 5 is attached to the upper plate 4a and the front plate 4.
b, and a side plate 4c, forming a ventilation path 6b that communicates the ventilation port 1 and the ventilation port 5 inside. 7 is a bird-proof net provided in the ventilation passage 6b to prevent birds from entering the ventilation opening 1 for building nests, etc.;
The lower end is fixed to the wall surface 1, and the upper end is fixed to the joint 4d between the upper plate 4a and the front plate 4b.

With the structure described above, by installing the bird net 7 inside the ventilation passage 6b, birds are prevented from entering the weather cover and the ventilation opening 1 and building nests therein. Further, rain does not enter into the ventilation opening 1 due to normal rainfall. However, in the case of heavy rain accompanied by strong winds, wind and rain may enter through the vent 6 due to the airflow colliding with the wall surface, and rainwater may enter the vent 1 through the mesh 7a of the bird screen 7. Ta.

This invention aims to improve the above-mentioned drawbacks of the conventional ones, and provides a weather cover in which a waterproof plate is attached to the indoor side of the lower part of the bird screen.

An embodiment of this invention will be described below with reference to FIGS. 3 to 5. In the figure, the same reference numerals as in FIGS. 1 and 2 indicate the same or equivalent parts, 8 is a waterproof plate attached to the lower part of the indoor side of the bird screen 7, 9 is a fastener for attaching the waterproof plate 8, and the fastener As shown in FIG. 5, 9 consists of a receiver 9a and a push rod 9b.
By pushing in b, a tongue piece 9c formed on the opposite side of the socket opens in the outer circumferential direction.

With the structure described above, after positioning the waterproof plate 8 at the lower part of the indoor side of the bird screen 7, the fastener 9 is attached to the fifth
As shown in Figure a, with the tip of the push rod 9b pushed up to the cylindrical portion 9b of the receiver 9a, it is passed through the mounting hole 8a of the waterproof board 8 and the mesh 7a of the bird screen 7 from the indoor side, By sufficiently pushing the push rod 9b into the receiver 9a, the tongue piece 9c opens in the outer circumferential direction, and the waterproof plate 8 can be fixed to the bird net 7. Although the case is shown in which the fastener 9 is attached to one location, a plurality of fasteners 9 may be used depending on the wind pressure that the waterproof plate 8 receives.

Note that the larger the area of the waterproof plate 8, the greater its ability to block wind and rain, but as the area of the ventilation passage 6b decreases, the amount of ventilation decreases, so it should be set to the minimum size necessary to accommodate the intensity of wind and rain. This is desirable. Further, since the waterproof plate 8 can be easily attached and detached by using the fasteners 9, it can be removed during times other than the typhoon season.

As described above, with this invention, even after the weather cover is attached to the wall, the waterproof plate can be easily attached and detached from the indoor side, so a waterproof plate of appropriate size can be attached as necessary, and the waterproof plate Since it is attached to the indoor side of the bird screen, there is no risk of the waterproof board falling to the outside even if it receives higher than expected wind pressure.

[Brief explanation of the drawing]

1 and 2 show a conventional example, FIG. 1 is a front view, FIG. 2 is a sectional view, and FIGS. 3 to 5 show an embodiment of this invention. 3 is a front view, FIG. 4 is a cross-sectional view taken from FIG. 3, and FIG. 5 shows a fastener, a is a perspective view, and b is a side view. In the figures, the same reference numerals indicate the same or equivalent parts, 1 is a ventilation hole, 2 is a wall surface, 6 is a ventilation hole, 6a
1 is a ventilation passage, 7 is a bird screen, 8 is a waterproof plate, 9 is a fastener, 9a is a receiver, 9b is a push rod, and 9c is a tongue piece.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A weather cover for a ventilation fan that is connected to a ventilation opening on a wall and prevents rainwater from entering through the ventilation opening formed at the bottom as well as birds from entering. A weather cover for a ventilation fan, characterized in that a bird screen is provided on the road, and a waterproof plate is attached to the lower part of the indoor side of the bird screen using a fastener. (2) The fastener consists of a receiver and a push rod,
The weather cover for a ventilation fan according to claim 1, wherein the tongue on the side opposite to the socket opens in the outer circumferential direction when a push rod is pushed into the socket of the holder.