JP2913392B2 - Stiff structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure which is attached to a ventilation opening to allow air to flow between indoors and outdoors, and to prevent rainwater from entering from indoors to outdoors.

[0002]

2. Description of the Related Art Hitherto, a limp structure has been used to prevent rainwater from entering indoors and to allow air to flow between indoors and outdoors. As this kind of spar structure, there is a structure provided with a waterproof unit having a partition plate going outdoors and two side plates perpendicularly intersecting both sides of the partition plate. In this device, the waterproof units are arranged in a staggered manner to form a labyrinth-shaped air flow path.

[0003]

The conventional litter structure can exhibit sufficient waterproofness against weak wind and rain. However, when a typhoon or similar strong wind and rain occurs, as described below, sufficient waterproofing cannot be performed, and indoors may be flooded.

Next, the water immersion phenomenon will be described with reference to FIG. FIG. 6A shows a waterproof unit 1 having a conventional bridging structure. As shown in the drawing, the waterproof unit 1 has a partition plate 2 facing the outdoor S1, and side plates 3, 4 orthogonal to both side portions of the partition plate 2. Also,
S2 is indoors, and it is assumed that the strong wind and rain 5 containing a large amount of raindrops 6 is blowing from the outdoor S1 to the indoor S2.

At this time, a phenomenon as shown in FIG. 6B occurs. That is, in general, most of the strong winds and rains 5, 7 blow up from the bottom upward. In particular, the litter structure is often provided at a high point on the wall, and strong winds hitting the middle or lower part of the wall often turn upward near the litter structure. When the upward strong wind 5 blows, the strong rain 5 collides with the partition plate 2, and a part of the raindrops 6 included in the strong wind 5 is struck on the partition plate 2 and adheres to the partition plate 2. I do.

Here, if the wind is weak, the raindrops 6 attached to the partition plate 2 drop along the partition plate 2. However, when the strong winds 5 and 7 blow up vigorously, the rain drops 6 attached to the partition plate 2 are pushed by the strong winds and also rise in the arrow N1 direction. Then, the raindrops 6 that rise one after another are combined to form a rain pool A. On the other hand, as shown in FIG. 6A, the strong wind and rain 5 that has hit the partition plate 2 bypasses the side plates 3 and 4 and heads toward the room S2. Also, this detour 5
As a result, a part of the rain pool A is stripped off to form rain drops 6. Then, together with the detouring strong wind and rain 5, the raindrops 6 pass through the waterproof unit 1 and flood the indoor S <b> 2. As described above, in the conventional litter structure, the waterproofness may be impaired.

Accordingly, an object of the present invention is to provide a spar structure that can effectively prevent water from entering indoors.

[0008]

SUMMARY OF THE INVENTION
It has a mounting frame attached to a ventilation opening that opens to the wall, and a waterproof body held by the mounting frame. The waterproof body is staggered so that a plurality of vertically long waterproof units allow air to flow from outdoors to indoors. This waterproof unit is
A partition plate facing the outdoors, a side plate provided on a side portion of the partition plate, and a plurality of ventilation holes through which air can pass, and
The partition plate and a vent plate provided at a distance from the partition plate to the position of the outdoor side, to form a dropping space sandwiched between the partition plate and the ventilation plate, passing into the dropping space Only the degraded wind and rain passing through the pores was allowed to enter, and one or both of the partition plate and the ventilation plate were attached to drop raindrops contained in the wind and rain.

[0009]

1 is a perspective view of a waterproof structure according to a first embodiment of the present invention; Are arranged in a staggered manner so as to allow air to flow from outdoors to indoors, and this waterproof unit can allow air to pass therethrough, a partition plate facing outdoors, a side plate provided on a side of the partition plate, and the like. Multiple ventilation holes are opened, and
The partition plate and a vent plate provided at a distance from the partition plate to the position of the outdoor side, to form a dropping space sandwiched between the partition plate and the ventilation plate, passing into the dropping space Only the degraded wind and rain passing through the pores was allowed to enter, and one or both of the partition plate and the ventilation plate were attached to drop raindrops contained in the wind and rain.

[0010] Therefore, in the dripping space, strong wind and rain does not enter as it is, but only weak wind and rain which has been reduced in energy through the vent hole can exist. In other words, even if strong winds and storms blow up outdoors, the wind pressure in the dripping space remains weak.

For this reason, the raindrops that have entered the drip space are not pushed up and adhere to one or both of the partition plate and the ventilation plate, and either drop these plates downward or drop them naturally. You will fall. As a result, the raindrop does not reach the indoor side by connecting the partition plate upward, and it is possible to effectively prevent water from entering.

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the bridging structure of the present embodiment is attached to a ventilation port 9 opened in a wall 8. This mounting structure is the mounting frame 1 fixed to the ventilation opening 9.
0 and a waterproof body 11 held by a mounting frame 10.
Further, as shown in FIG. 2, the waterproof body 11 is fixed to the mounting frame 10 by using fixing screws 12.

From the outdoor S1 to the indoor S2,
It is assumed that the strong wind and rain 5 containing a large amount of raindrops 6 is blowing upward.

Next, the waterproof body 11 of the present embodiment will be described with reference to FIG. Here, FIG. 3 is a sectional view taken along line AA of FIG. As shown in FIG. 3, the waterproof body 11 includes a plurality of vertically long waterproof units U1 and U2,
They are arranged in a zigzag pattern to allow air to flow toward 2. Then, as indicated by arrows in FIG. 3, a labyrinth-shaped air flow path is formed, and air can be ventilated in both directions between the outdoor S1 and the indoor S2.

However, the first waterproofing unit U1 and the second waterproofing unit U2 intersect each other when viewed from the outdoor S1 side, and air or a substance contained therein can be ventilated only by meandering as shown by an arrow. It cannot be distributed straight from the outdoor S1 to the indoor S2.

Here, the first waterproof unit U1 is connected to the outdoor S
1, and side plates 14 and 15 provided on the side of the partition plate 13 so as to be orthogonal to the partition plate 13.
Having.

On the outdoor S1 side of the side plates 14, 15, insertion portions 16, 17 having vertical grooves are provided so as to face each other, and the insertion portions 16, 17 have a thin plate shape. The ventilation plate 18 is vertically inserted. Vent plate 1
Numeral 8 is constituted by, for example, a punching plate, and has a number of small air holes 19 penetrating in the thickness direction.

Further, there is an interval t between the surface of the partition plate 13 facing the outdoor S1 and the ventilation plate 18, and the partition plate 13,
Dropping space R surrounded by the side plate 14, the ventilation plate 18, and the side plate 15
Are formed. As will be described later in detail, the drip space R is allowed to enter only the depressed wind and rain through the vent hole 19, and the wind pressure in the drip space R is always low even if the wind pressure of the outdoor S1 is high. It is becoming.

Further, a sheet-like sound absorbing layer 20 made of a foam or the like is formed on the surface of the partition plate 13 facing the indoor S2. Here, the litter structure is often attached to a factory building or the like, but noise such as engine sound generated in the factory indoor S2 is absorbed by the sound absorbing layer 20,
It is difficult to transmit to the outdoor S1.

The second waterproofing unit U2 has a substantially U-shaped cross section, unlike the first waterproofing unit U1. However, the second waterproof unit U2 is different from the first waterproof unit U1.
Similarly to the above, the partition plate 21 facing the outdoor S1 and the partition plate 21
Side plate 2 provided on the side of
2, 23.

On the outdoor S1 side of the side plates 22, 23, insertion portions 24, 25 having vertical grooves are provided so as to face each other, and these insertion portions 24, 25 have thin plate-shaped ventilation holes. The plate 26 is inserted vertically, and the ventilation plate 26 is formed with a number of small ventilation plates 26 penetrating in the thickness direction.

Here, the shapes of the first waterproofing unit U1 and the second waterproofing unit U2 can be variously changed according to the design circumstances, and the illustrated one is only an example.

Next, with reference to FIG.
The waterproof action of the waterproof unit U1 will be described. FIG.
This is to be compared with FIG. 6B showing the related art, and shows a state where upward strong wind and rain 5 and 7 are sprayed together with raindrops 6.

Here, when the strong wind and rain 5 is vigorously directed upward and is sprayed on the first waterproofing unit U1, the raindrops 6 generate
3, the raindrops 6 are attached to the ventilation plate 18 and the raindrops 6 adhere to the ventilation plate 18. Then, as shown by an arrow N3, the vehicle is pushed upward in the indoor S2 direction by the force of the strong winds 5 and 7 while being pushed in the indoor S2 direction.

However, the ventilation plate 18 is provided with a ventilation hole 19, and a part of the strong wind and rain 5 and 7 flows into the dripping space R through the ventilation hole 19, so that the raindrop 6 is located at the nearest location. When approaching the ventilation hole 19, as shown by an arrow N <b> 4, it penetrates into the dripping space R.

Now, even if the strong winds and rains 5 and 7 are violently blown out in the outdoor S1, most of the strong winds and rains 5 and 7 cannot enter the drip space R because of being blocked by the ventilation plate 18,
Only a part of the strong winds and rains 5 and 7 can reach the dripping space R through the ventilation holes 19.

However, among the strong winds and rainfalls 5 and 7, those that reach the dripping space R lose energy when passing through the small ventilation holes 19 and become weak passing winds 28. Further, the passing wind 28 may hit the partition plate 13 and be reflected to become a reflected wind 29.
It is further reduced than it is.

For this reason, the wind pressure in the dripping space R becomes
1 is very small compared to the wind pressure. That is, the inside of the dripping space R is almost in the same state as when a weak wind and rain is blowing.

As a result, at a weak wind pressure in the dripping space R,
There is not enough momentum to lift the raindrop 6 that has passed through the ventilation hole 19, and the raindrop 6 passes through the ventilation hole 19 and reaches the surface of the ventilation plate 18 facing the partition plate 13, and then moves downward as indicated by an arrow N <b> 5. To be dropped.

Also, the raindrops 6 contained in the passing wind 28 and the reflected wind 29 naturally fall, or fall on the surface of the partition plate 13 or the ventilation plate 18, and as shown by arrows N6 and N7,
Drip down.

As described above, the first waterproof unit U of the present embodiment
1, the dripping space R is provided at the back of the ventilation plate 18 so that the wind pressure of the strong wind and rain 5 and 7 of the outdoor S1 is substantially reduced. Does not enter the indoor S2 by bypassing the side plates 14 and 15.

The above operation is similarly performed for the second waterproofing unit U2, and the first waterproofing unit U1 and the second waterproofing unit U2 are staggered so as to overlap each other as described above. Therefore, infiltration of rainwater into the indoor S2 can be effectively prevented.

FIG. 5 shows another embodiment of the present invention. In this example, the first waterproof unit U1 of the above-described embodiment,
It has a three-stage configuration in which the third waterproof units U3 are staggered between the second waterproof units U2. For this reason, as shown by the arrow, a labyrinth-shaped air flow path slightly more complicated than the above-described embodiment is formed.

The third waterproofing unit U3 is symmetrically arranged with respect to the center of the second waterproofing unit U2.
It has a partition plate 30, side plates 31, 32, and a ventilation plate 33. Of course, the ventilation plate 33 has a plurality of ventilation holes. This embodiment has the same operation and effect as the above embodiment.

[0035]

The present invention is configured as described above.
Even in a state where strong winds and winds are blowing up, raindrops do not splash on the partition plate, and it is possible to effectively prevent water from entering indoors.

[Brief description of the drawings]

FIG. 1 is a front view of an overhead structure according to an embodiment of the present invention.

FIG. 2 is a side view of the bridging structure in the same embodiment

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is an explanatory diagram of a waterproof action according to the embodiment of the present invention.

FIG. 5 is a cross-sectional view of a bridging structure according to another embodiment of the present invention.

6A is a sectional view of a conventional waterproof unit, and FIG. 6B is an explanatory view of a waterproof action of the conventional waterproof unit.

[Explanation of symbols]

 Reference Signs List 8 wall 9 ventilation opening 10 mounting frame 11 waterproof body 13 partition plate 14, 15 side plate 18 ventilation plate 19 ventilation hole R dripping space U1, U2 waterproofing unit

Claims (2)

(57) [Claims] 1. A mounting frame attached to a ventilation opening opening in a wall, and a waterproof body held by the mounting frame, wherein the waterproof body has a plurality of vertically long waterproof units for discharging air from outdoors to indoors. It is arranged in a staggered manner to allow circulation, The waterproofing unit, a partition plate facing the outdoors, a side plate provided on the side of the partition plate, a plurality of ventilation holes through which air can be opened, And having a ventilation plate provided at an interval with respect to the partition plate at a position on the outdoor side than the partition plate, forming a dripping space sandwiched between the partition plate and the ventilation plate, Allowing only the depressed wind and rain to pass through the ventilation hole into the dripping space, and connecting one or both of the partition plate and the ventilation plate to drop raindrops contained in the wind and rain. Characterized by the structure. 2. The cladding structure according to claim 1, wherein a sound absorbing layer is provided on a surface of the partition plate facing indoors.