JPH0524793Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a vertical waterproof louver for ventilation installed on the walls of air conditioning units, electrical rooms, elevator rooms, etc. The louver bodies are arranged at a predetermined interval across the upper and lower horizontal frames of the louver frame body, and the lower horizontal frame is provided with a drainage slope that becomes higher toward the indoor side, while each louver body is placed in the middle in the width direction. Relating to a vertical waterproof louver having a cross-sectional shape that is bent so that the part protrudes laterally from both ends in the width direction, and a water return part is connected to the protruding tip side of the middle part in the width direction over the entire upper and lower length. It is something.

[Conventional technology]

Conventionally, in this type of vertical waterproof louver, as shown in FIG. 6, the lower horizontal frame 17 of the louver frame has a slanted plate part 18 with a drainage slope that becomes higher toward the indoor side, and It is composed of a rising plate part 19 vertically rising from the indoor end, and the rising plate part 19 is formed with water return parts H and I that slightly protrude toward the outdoor side.

On the other hand, the vertically oriented louver main body 20, which is arranged at appropriate intervals between the upper and lower horizontal frames, has a middle part in the width direction that protrudes laterally than both ends in the width direction, as shown in the expanded view in the same figure. bent to position, and
Both sides of the bent part had a rectilinear mountain-shaped cross-sectional shape, and a water return part J was provided continuously over the entire length of the upper and lower sides on the protruding tip end side of the middle part in the width direction.

[The problem that the idea attempts to solve]

In the conventional example above, when the wind is weak,
Although there is not much of a problem in terms of waterproof performance, there is a problem in that when a strong wind blows, rainwater blown up over the swash plate part 18 by the force of the wind rises, crosses the plate part 19, and enters the room.

That is, since the swash plate part 18 has a drainage slope that becomes higher toward the indoor side, and the louver body 20 has a bent cross-sectional shape, the lower end of the louver body 20 on the indoor side than the water return part J is inclined. The plate portion 18 and the rising plate portion 19 form a substantially triangular pyramid-shaped (narrowed inward) snowdrift space P, which is formed by the lower end of the louver body 20 and the rising plate portion 19 Water return part H between
It only communicates with the adjacent snowdrift space P through a small gap corresponding to the amount of protrusion of I.

Therefore, in strong winds, the rainwater that has flowed down the louver body 20 is blown up on the swash plate part 18 by the force of the wind, and the rainwater enters the narrow bay and the wave height increases. The rainwater accumulates in the snowdrift space P, and each time the wind speed increases, the rainwater becomes water droplets and rises over the board portion 19.

In view of the above conventional drawbacks, the present invention aims to prevent rainwater from entering during strong winds with an extremely simple structure.

[Means to solve the problem]

The technical measures taken by the present invention to achieve the above objectives are as follows. That is, the feature of the present invention is that a plurality of vertically oriented louver bodies are arranged at predetermined intervals across the upper and lower horizontal frames of the louver frame, and the lower horizontal frame is provided with a drainage system that becomes higher toward the indoor side. While creating a slope, each louver body has a cross-sectional shape that is bent so that the middle part in the width direction protrudes laterally than both ends in the width direction, and a water return part is placed on the protruding tip side of the middle part in the width direction for the entire length of the top and bottom. In the vertical waterproof louver, which is continuously arranged over the whole area, a cutout part is formed at the lower end of the louver body on the indoor side of the water return part.

[Effect]

According to the above configuration, the lower ends of the bent ventilation passages formed between the louver bodies communicate with each other via the notch in the lower end of the louver body,
The space where rainwater accumulates will disappear.

Therefore, even if rainwater that has flowed down the main body of the louver is blown up onto the horizontal frame by the force of the wind, the rainwater will migrate to the adjacent ventilation passage through the notch. Since rainwater does not form puddles, it is prevented from becoming water droplets and entering the room.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 shows the entire vertical waterproof louver, and FIGS. 2 to 5 show its main parts. This vertical waterproof louver has a pair of left and right vertical frames 1, 1 joined to upper and lower horizontal frames 2, 3 to form a louver frame body 4, and a plurality of vertically oriented louver bodies 5... are arranged at predetermined intervals. It is arranged across the upper and lower horizontal frames 2 and 3 with the opening 7 in the outer wall 6 of the building separated, for example, for ventilation of an electrical room, etc.
be equipped with.

The left and right vertical frames 1, 1, the upper and lower horizontal frames 2, 3, and the louver body 5 are each made of aluminum molded products, and a gap is formed between them and the opening 7 for embedding the water stop material 8. A plate section 9 for use is provided in series.

The cross-sectional shape of the lower horizontal frame 3 is as shown in FIGS. 2 and 3. That is, the illustrated horizontal frame 3 includes the plate portion 9, an outdoor side surface portion 3a continuous to the upper edge thereof, a receiving plate portion 3b continuous to the upper edge with a drainage slope that becomes higher toward the indoor side, and the receiving plate portion 3b continuous to the upper edge thereof. A drainage board section with a drainage slope, which has a standing board section 3c rising from an inclined upper end, and a hanging board section 3d at the tip of a part that is connected to its upper edge and protrudes toward the outdoors beyond the rising board section 3c. 3e, and a vertical plate portion 3f connected to the inclined upper end thereof. A first water return part A is formed by the rising plate part 3c, and L-shaped plate parts 10 and 11 protruding toward the outdoors are provided at the upper end and middle stage of the vertical plate part 3f. The portion 11 forms a second water return portion B, and the L-shaped plate portion 10 forms a third water return portion C.

The louver main body 5 has a smooth curved cross-sectional shape that is bent so that the middle part in the width direction protrudes laterally than both ends in the width direction, and there is a water return on the protruding tip side of the middle part in the width direction. Section D is arranged continuously over the entire length of the top and bottom. To explain in more detail,
This louver main body 5 includes a reinforcing plate part 13 located at the outdoor end, and a first curved plate part 12 connected thereto.
and the water return part D connected to the indoor end thereof.
and a first curved plate portion 12 at the end of the plate portion 14 opposite to the water return portion D.
The second
It includes a curved plate part 15 and a plate part 16 connected to the indoor end of the curved plate part 15. Then, a water return part E on the curved inner surface side is formed by the step, and the plate part 1
6 forms a third water return part F. Further, the first curved plate part 12 and the second curved plate part 15 are provided with a large number of longitudinal grooves a at intervals in the width direction.

In this embodiment, in the vertical waterproof louver having the above-mentioned configuration, as shown in FIGS. 3 and 5, a cutout part G is provided at the lower end of the louver body 5 on the indoor side of the water return part D. It is characterized by the point where it is formed.

In the illustrated embodiment, as shown in Figs. 3 and 4, the first portion on the curved inner surface side of the louver body 5 is
The corner of the curved plate 12 and the reinforcing plate 13 is formed into a smooth curved surface b. This is to prevent water from running off at the joint between the plate 13 and the first curved plate 12 on the curved inner surface side of the louver body 5 even in strong winds, and to allow rainwater to move along the curved surface b. Incidentally, in the conventional example shown in Fig. 6, a recess d that serves as a negative pressure area is formed at the rear of the reinforcing plate 21, so that in strong winds, water runs off at the tip of the reinforcing plate 21 and rainwater splashes directly into the internal space of the ventilation passage and may enter the room without being captured by the louver body. The curved surface b is intended to avoid such inconvenience. The plate 1 that forms the water return portion D
The tip of 4 is formed into a curved surface c for the same reason.

In addition, in the illustrated embodiment, as shown in FIG. 4, the width of the ventilation passage between the louver bodies 5, 5 is determined by the minimum ventilation width l ₁ at each location from the upstream side to the downstream side.
l ₂ and l ₃ are set so that they become wider toward the upstream side.
This is done so that the wind speed becomes slower toward the upstream side of the ventilation path, so that rainwater can be efficiently contacted and captured by the louver body 5 on the upstream side of the ventilation path.

According to the above embodiment, the rainwater captured by the water return parts D, E, F of the louver body 5 flows down along the water return parts D, E, F, but the first curved plate part 12. Since a large number of vertical grooves a... are formed in each of the second curved plate parts 15, the amount of rainwater flowing down through the vertical grooves a increases, and the water return parts D, E, The amount of rainwater flowing down along F will be reduced.

Therefore, even under strong wind and rain, the water returning portion D,
Rainwater does not overflow from the water returning portions D, E, F, and a situation where the rainwater overflowing from the return portions D, E, and F turns into mist due to the force of the wind and blows into the room can be avoided.

The rainwater that has flowed down through the louver body 5 is discharged outdoors from the lower horizontal frame 3. In this case, if the wind is strong, rainwater may be blown up over the horizontal frame 3, but a notch G is formed at the lower end of each louver body 5 to eliminate the original snowdrift space. Therefore, the rainwater that would have accumulated here will flow through the notch G and into the adjacent ventilation passage, as shown by the broken line arrow in FIG.

Therefore, it is possible to reliably avoid the inconvenience that accumulated rainwater becomes water droplets and enters the room every time the wind speed increases.

In this embodiment, the horizontal frame 3 is
The cross-sectional shape of the horizontal frame 3 is as shown in the figure, and the first water return part A is formed at the middle in the width direction of the horizontal frame 3. However, this is the most preferred embodiment, and the cross-sectional shape of the horizontal frame 3 is the sixth. The horizontal frame may be the same as the conventional horizontal frame shown in the figure or any other known horizontal frame.

[Effect of idea]

Since the present invention has the above-mentioned configuration, the lower end of the bent ventilation passage formed between the louver bodies is
They communicate with each other through the notch at the lower end of the louver body, and the space where rainwater accumulates disappears.

Therefore, even if rainwater that has flowed down the main body of the louver is blown up onto the horizontal frame by the force of the wind, the rainwater will migrate to the adjacent ventilation passage through the notch. Since no puddles of rainwater are formed, it is possible to prevent the inconvenience caused by accumulated rainwater turning into water droplets and entering the room every time the wind speed increases.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a vertical waterproof louver according to the present invention, Fig. 2 is a cutaway perspective view of the main parts, Fig. 3 is a vertical side view of the louver frame with the louver main body developed, and Fig. 4 is a perspective view of the louver. A horizontal sectional view of the main body, FIG. 5 is a sectional view taken along the - line in FIG. 3. FIG. 6 is an explanatory diagram of a conventional example. 2, 3... horizontal frame, 4... louver frame body, 5... louver body, G... notch portion.

Claims (1)

[Scope of utility model registration request] A vertical waterproof louver comprising a plurality of vertically oriented louver bodies arranged at a predetermined interval across the upper and lower horizontal frames of a louver frame, the lower horizontal frame being provided with a drainage gradient that is higher on the indoor side, while each louver body has a curved cross-sectional shape so that its widthwise middle portion protrudes laterally beyond both widthwise ends, and a water return portion is connected to the protruding tip of the widthwise middle portion over its entire length from top to bottom, characterized in that a notch is formed in the lower end of the louver body on the indoor side of the water return portion.