JP2744770B2 - 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 bridging structure.

[0002]

2. Description of the Related Art Hitherto, as one means for improving ventilation, a spar is attached to a ventilation hole formed in a wall portion, and the spar is provided with a horizontal blade extending in the left-right width direction and a front end positioned outside. The side is set to a low position, and a plurality of units are horizontally laid at predetermined intervals in the vertical direction in an inclined state in which a rear end located inside is set to a high position.

[0003] In this manner, the outside air can be taken into the room while being guided upward from below through the outside air inlet formed between the vertically adjacent horizontal blades.

[0004]

However, the above-mentioned structure has the following problems.

[0005] That is, in the above-mentioned structure, although outside air is taken into the room from below through the outside air inlet, depending on the case of strong wind or the wind direction, rainwater flows along with the outside air. There has been a problem that the water enters the room through the entrance and the room is flooded.

[0006]

Therefore, according to the present invention, there is provided a ventilation structure which is attached to a ventilation hole formed in a wall so that ventilation can be performed. Peripheral support frame, a plurality of front horizontal blades which are vertically spaced at the front side of the peripheral support frame, and vertically spaced at the rear side of the peripheral support frame. A plurality of rear horizontal blades that are laid horizontally, and a communication flow path forming body disposed behind the front horizontal blade and in front of the rear horizontal blade for preventing infiltration of rainwater and the like. The path forming body has a plurality of flow path forming pillars erected in the left and right width direction between the upper and lower frame forming portions of the peripheral supporting frame, and is formed in a U-shaped cross section, and the flow path located on the front side is formed. The channel-forming column has the U-shaped opening face standing rearward, while the channel-forming column located on the rear side has the U-shaped opening face forward. And the U-shaped opening surface of the flow channel forming column located on the front side and the U-shaped opening surface of the flow channel forming column located on the rear side are arranged substantially flush. Moreover, the flow path forming column portion is a rectangular plate-shaped column main body extending in the vertical direction, a folded piece formed by extending rearward from the left or right edge of the column main body, and a front surface of the column main body. A pair of left and right reinforcing ribs formed so as to protrude forward from the middle part are integrally formed to form a U-shaped cross section, and the flow path forming column is the same as a rectangular plate-shaped column main body extending vertically. A folded piece formed by extending forward from the left and right side edges of the pillar body, a protruding piece formed by extending forward from the front center of the pillar body, and a rearward part from the rear halfway of the pillar body. A pair of left and right reinforcing ribs formed by projecting are integrally molded to form a U-shaped cross section with a protruding piece provided in the center, The front channel forming column and the rear channel forming column are arranged in a staggered manner in the left-right width direction, and the folded pieces of the front channel forming column are attached to the rear channel forming column. Along with the folded piece and the protruding piece in the middle, the respective end faces of the folded piece and the protruding piece are located on the same virtual straight line extending in the left-right width direction, and the folded piece of each flow path forming column portion and It is an object of the present invention to provide a folded structure in which a folded channel is formed to be folded in a folded manner with the protruding pieces.

[0007] The present invention also provides a peripheral support frame which is attached to a ventilation opening formed in a wall so that ventilation can be performed, and is fitted into the ventilation opening and can be attached. A plurality of front horizontal blades horizontally spaced at the front side of the peripheral support frame at an interval in the vertical direction, and a plurality of horizontal blades horizontally spaced at the rear side of the peripheral support frame at the vertical direction. A rear horizontal blade body, and a communication flow path forming body disposed behind the front horizontal blade body and in front of the rear horizontal blade body for preventing infiltration of rainwater or the like. A plurality of flow path forming pillars are erected in the left-right width direction between the upper and lower frame forming parts of the support frame, and are formed in a U-shaped cross section. While the opening surface is erected rearward, the channel forming column located at the rear has the U-shaped opening surface erected forward, and The formed pillar portion is a rectangular plate-shaped pillar body extending in the up-down direction, a folded piece formed by extending rearward from each of the left and right side edges of the pillar body, and a front portion from the front halfway portion of the pillar body. A pair of left and right reinforcing ribs formed by protruding are integrally formed to have a U-shaped cross section, and the flow path forming column portion is a rectangular plate-shaped column main body extending vertically and the left and right of the column main body. A folded piece formed by extending forward from the side edge, a projecting piece formed by extending forward from the center of the front surface of the column body, and a projecting piece formed by projecting rearward from the middle part of the rear surface of the column body. A pair of left and right reinforcing ribs are integrally formed to form a U-shaped cross section with a protruding piece provided at the center, and a folded piece of a channel forming column located on the front side and a channel forming column located on the rear side And an intermediate flow path forming column at an intermediate position between the turning pieces of the section and the intermediate flow path. The pillar portion is a rectangular plate-shaped pillar portion main body, both side folded pieces formed by extending rearward from the left and right side edges of the same pillar portion body, and one of the right and left side edges of the pillar portion body in front. The one-side folded piece formed by extending to is integrally molded.Furthermore, the flow path forming column portion 40 is shared by being vertically turned upside down alternately in the left and right width direction to be shared, and viewed in plan. It is arranged in a bilaterally symmetrical shape, and one of the both-side folded pieces extending rearward is located in the middle between the folded piece and the protruding piece of the rear channel forming column part, and the folded piece is the middle of the both-side folded piece. And the one-side folded piece extending forward is arranged so as to be located in the middle of the folded piece of the front channel forming column portion.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

A shown in FIG. 1 is a bridge according to the present invention. The bridge A is attached to a ventilation port 9 formed in a wall W so that the room can be ventilated.

As shown in FIGS. 1 to 3, the garbage A is fitted into the ventilation opening 9 and can be attached to the peripheral supporting frame 10.
A plurality of front horizontal blades 11 which are vertically spaced at the front side of the peripheral supporting frame 10 at intervals in the vertical direction, and the peripheral supporting frame
10, a plurality of rear horizontal blades 12 horizontally spaced at a predetermined interval in the rear side of the rear side, and rainwater interposed between the front horizontal blades 11 and the rear horizontal blades 12. And a communication channel forming body 13 for preventing intrusion. w1 is a concrete wall main body, w2 is a mortar outer decorative wall, w3 is a mortar inner decorative wall, w4 is a mortar peripheral support frame support, and k1 and k2 are respectively. A caulking material, 1 is an insect repellent net, 2 is a net pressing rubber, 3 is a drainer, and 4 is a screw.

As shown in FIGS. 1 to 3, the peripheral supporting frame 10 is formed of aluminum upper and lower left and right frame forming portions 14, 1.
5, 16, 16 to form a rectangular frame, each frame forming portion 14, 15,
16 and 16 are fixed to the wall main body w1 by the peripheral supporting frame support w3.

As shown in FIG. 2, the upper frame forming portion 14
At the front of the lower surface, an insect repellent net attachment piece 14a is formed integrally with the laterally extending width of the insect repellent net attachment piece 14a, and the insect repellent net attachment piece 14a is suspended from the lower surface of the upper frame forming part 14 and the support part 14b. A front opening integrally formed at the lower end edge of the lower end of the lower end of the lower end portion is formed by a pressing rubber fitting concave portion 14c having a U-shaped cross section. 14d is a screw stop.

As shown in FIG. 2, the lower frame forming portion 15
A protruding wall 15a extends in the left-right direction at the front of the upper surface and is integrally formed, while a rising wall 15b extends at the rear end of the upper surface in the left-right direction and is integrally formed. Is horizontally extended forward, and a shelf 15c, which has a shape of an L-shaped cross-section, which extends vertically downward from the middle part, extends in the left-right width direction and is integrally formed, and is formed integrally with the rising wall 15b in the middle. An engaging piece 15d projecting horizontally extends in the left-right width direction and is integrally formed. 15e is a screw stop.

As shown in FIG. 2, a support 20 is attached to the lower frame forming portion 15.
Is a ceiling wall 20a extending in the left and right width direction, and the ceiling wall
A press-fitting rubber recess 20b having a U-shaped cross section with a front opening integrally formed on the lower surface of the front end of the front end 20a, and a support 20c integrally formed by hanging downward just below the front end edge of the fitting recess 20b.
And an engaging recess 20d formed integrally with the rear end edge of the horizontal plate portion 20a, and a contact portion 20e formed integrally with the rear end edge of the engaging recess 20d by being raised immediately above the rear end edge. .

In this way, the support is formed on the lower frame forming portion 15.
When mounting 20, the engaging recess 20d is engaged with the engaging piece 15d, the contact piece 20e is brought into contact with the rising wall 15b, and the rear face of the support portion 20c is brought into contact with the front face of the protruding wall 15a. And are connected by screws 4.

At this time, as shown in FIG. 2, the holding rubber fitting recess 20b formed integrally with the support body 20 is
It is disposed immediately below the holding rubber fitting recess 14c integrally formed with the holding member.

A drainage hole 35 is formed in the projecting piece 15a of the lower frame forming portion 15, while a drainage hole 36 is formed in the support portion 20c of the support base 20 so as to correspond to the rainwater discharge hole 35. doing.

As shown in FIG. 3, a pair of front and rear connecting pieces 16a, 16b extending in the vertical direction along the front and rear edges of the inner surface are integrally formed on the left and right frame forming parts 16, 16, respectively. And both connecting pieces 16a, 16b are projected to the front side,
It is bent at a right angle in the direction facing the middle part, and further bent at a right angle inward from the middle part, so that a fixed interval is maintained between the distal ends of both connecting pieces 16a and 16b.

The pair of front and rear connecting pieces 16a, 16
b on the outer surface of the tip of b
2 and 23 are abutted, and a side wall forming column 24 is interposed between the distal ends of both connecting pieces 16a and 16b, and these are integrally connected by screws 4 and 4. An insect net attachment piece 24a is formed integrally with the front end edge of the inner side surface by extending vertically. 24b is a screw stop.

As shown in FIG. 3, the insect net attachment piece 24a is
A support portion 24c protruding from the inner surface of the side wall forming column 24,
The support portion 24c is formed from a front opening formed integrally with the front edge of the support portion 24c and a concave portion 24d for fitting a pressing rubber having a U-shaped cross section, and a folded piece 24e extending rearward from the rear end edge of the concave portion 24d and integrally formed. ing.

In addition, a pair of right and left holding rubber fitting recesses 24 are provided.
d and 24d are connected to a holding rubber fitting recess 20b formed integrally with the support body 20 and a holding rubber fitting recess 14c formed integrally with the upper frame forming portion 14, and are formed into a rectangular frame-shaped holding rubber in a front view. With the insertion groove 25, the insect net 1
The mesh body pressing rubber 2 for pressing and fixing the peripheral portion of the metal body can be fitted.

As shown in FIGS. 1 to 3, the front horizontal blade body 11 is formed by a front wall portion 11a, an inclined portion 11b, a rear wall portion 11c, and a screw stop portion 11d extending in the left-right width direction. The front wall 11a is arranged substantially vertically, and extends rearward and upward from the upper end edge of the front wall 11a to integrally form the inclined portion 11b, and is substantially vertically above the rear end edge of the inclined portion 11b. To the rear wall 11c
Are integrally formed, and a screw stopper 11d is integrally formed on the lower surface of the inclined portion 11b.

As shown in FIGS. 1 to 3, the front horizontal blade body 11 has front ridges 16a, 16a of the left and right frame forming parts 16, 16, respectively.
A front outside air inlet 18 is formed between the front horizontal blades 11 vertically adjacent to each other with a predetermined interval therebetween in the vertical direction.

As shown in FIGS. 1 to 3, the rear horizontal blade body 12 is formed by a front wall portion 12a, an inclined portion 12b, a rear wall portion 12c, and a screw stopper portion 12d extending in the left-right width direction. The front horizontal blade body 11 is formed in the same shape as that of the front horizontal blade body 11 so that it can be shared. As shown in FIG. A rear outside air inlet 19 is formed between the rear protruding portions 16b, 16b so as to be horizontally suspended at predetermined intervals in the vertical direction, and between the vertically adjacent rear horizontal blades 12, 12. Further, the rear side horizontal blade body 12 located at the lowermost portion is formed in a substantially L-shaped cross section.

As shown in FIGS. 2 and 3, the communication flow path forming body 13 has a plurality of flow path forming pillars 30 and 31 between the upper and lower frame forming parts 14 and 15 of the peripheral supporting frame 10 and has a lateral width. And the respective flow path forming pillars 30, 31 adjacent in the left-right width direction.
Are arranged facing each other in the front-rear direction to form a folded flow path 32 that is bent in a folded manner between the flow path forming columns 30, 30, 31, 31.

As shown in FIGS. 2 and 3, the flow path forming column 30 has a rectangular plate-shaped column main body 30a extending vertically.
Folded pieces 30b, 30b formed to extend rearward from the left and right side edges of the column main body 30a, respectively, and a pair of left and right reinforcing ribs 30c, 30c formed to protrude forward from a middle part of the front surface of the column main body 30a. Are integrally formed, and an opening surface 33 having a U-shaped cross section in a plan view is arranged rearward. 30d is a screw stop.

A plurality of flow path forming pillars 30 are erected along the front horizontal blade body 11 at intervals in the left-right width direction, and reinforcing ribs 30c, 30c of each flow path forming pillar 30 are provided. Is in contact with the back of the insect repellent net 1 to support a middle part of the insect repellent net 1.

As shown in FIGS. 2 and 3, the channel forming column 31 has a rectangular plate-shaped column main body 31a extending vertically.
Folded pieces 31b, 31b formed by extending forward from the left and right side edges of the column main body 31a, protruding pieces 31c formed by extending forward from the front central portion of the column main body 31a, and a column main body. A pair of left and right reinforcing ribs 31d, 31d formed to protrude rearward from a middle part of the rear surface of the rear surface 31a, are integrally formed, and an opening surface 34 having a U-shaped cross section in a plan view is disposed forward. 31e is a screw stopper.

A plurality of flow path forming pillars 31 are erected along the rear lateral blade body 12 at intervals in the left-right width direction, and the reinforcing ribs 31d, The rear end of 31d is brought into contact with the front edge of the rear horizontal
It supports 12 mid-sections.

As shown in FIG. 3, the front channel forming column 30 and the rear channel forming column 31 are arranged in a staggered manner in the left-right width direction, and the front channel forming column 30 is formed. 30 folded pieces
30b, the folded piece 301b and the protruding piece 3 of the rear channel forming column 31
1c, and these folded pieces 30b, 31b
Each end face of the protruding piece 31c is positioned on the same imaginary straight line extending in the left-right width direction, and the folded shape is formed by the folded pieces 30b, 30b, 31b, 31b and the protruding piece 31c of each flow path forming column 30, 31. A folded flow path 32 is formed.

In this manner, the outside air flowing through the front outside air inlet 18 formed between the front blades 11 and 11 flows in the folded flow path 32 while meandering in a folded manner, and the rear horizontal blades It flows into the room through the rear outside air inlet 19 formed between the bodies 12, 12, and at this time, rainwater and the like that have infiltrated with the outside air hit the side walls of the flow path forming columns 30, 31, and Then, the water flows down and flows through the ceiling wall portion 20a of the support base 20, and is discharged outside through the lowermost front outside air inlet 18.

In the event that rainwater or the like intrudes into the support base 20 from the screw mounting location, the infiltrated rainwater or the like flows through the rainwater discharge hole 35 → the drain hole 36 from the lower front outside air inlet 18 at the bottom. It is discharged outside.

Moreover, the communication flow path forming body 13 has the flow path forming columns 30, 31 arranged in a staggered manner, and the folded flow path 32 is formed from the front outside air inlet 18 side to the rear outside air inlet 19 side. And the folded flow passages 32 communicate with each other over the entire width of the peripheral support frame 10 in the left-right width direction. Folded piece of
The outside air a flowing from between the spaces 30b and 30b is
The projecting piece 31c protruding from the center of the central part 31 divides the air into left and right parts, and the divided outside air a1 and a1 are separated by the front passage forming column part.
30 through the folded flow path 32 formed by the pillar body 30a and the folded piece 30b and the pillar body 31a and the folded piece 31b of the rear flow path forming pillar 31. Road
Another folded channel 32 is formed between the folded pieces 31b, 31b of the right and left rear channel forming pillars 31, 31, which form the end of 32.
Into the outside air a1
To pass through.

Therefore, the outside air that has flowed in from the start ends of the plurality of folded flow paths 32 formed between the front-side flow path forming pillars 30 and 30 is split in the middle, and is separated from the other folded flow paths 32. When it merges with the diverted outside air a1, it can efficiently flow into the rear outside air inlet 19 due to the ejector effect, thereby ensuring good ventilation of the ventilation port 9 and noise during ventilation, so-called windbreak. Generation of noise can be prevented, and rainwater or the like can be reliably prevented from entering the room.

At this time, the pillar main bodies 30a, 30a of the front passage forming pillars 30, 30, which form the starting end opening of the folded flow passage 32, are formed.
And a reinforcing rib 30 between the rear side edge portion of the front side horizontal blade body 11.
Since it is possible to maintain a constant interval by the forward protruding width of c and 30c, the outside air can be widely and smoothly taken into the folded flow channel 32 from around the opening at the start end of the folded flow channel 32. .

Then, the pillar main bodies 31a, 31a of the rear flow path forming pillars 31, 31, which form the terminal openings of the folded flow paths 32, respectively.
And a reinforcing rib 3 between the front side edge of the rear side horizontal blade body 12
Since it is possible to maintain a constant interval by the rearward projecting widths of 1d and 31d, the outside air can be broadly and smoothly flown into the room from the terminal opening of the folded flow path 32 and taken in.

In this case, the above-mentioned reinforcing ribs 30c, 30c, 31
The forward projecting width of d, 31d can be set to a size that allows a wide and smooth intake of outside air.

In the present embodiment, the garment A is composed of a peripheral support frame 10 as a constituent member, a front horizontal blade 11, a rear horizontal blade 12, and a communication flow path forming body 13, each of which is a screw fixing portion. And can be easily assembled by the screw 4.

FIGS. 4 and 5 show the structure of the bridge A according to the second embodiment. The bridge A has the same basic structure as that of the first embodiment. Pillar
30 and the folded pieces 30b, 31b of the rear channel forming column 31 are arranged in a staggered manner so as to face in the front-rear direction, and the folded pieces 30b, 31
b, an intermediate flow path forming column 40 is arranged.

As shown in FIG. 5, the intermediate flow passage forming column 40 has a rectangular plate-shaped column main body 40a and a column main body 40a.
The folded pieces 40b, 40b formed by extending rearward from the left and right side edges of a, respectively, and the folded piece 40c formed by extending forward from one of the right and left edges of the column body 40a are integrally formed. By alternately standing upside down in the left-right width direction, the shared flow path forming column portion 40 can be arranged in a symmetrical shape in plan view.

Further, in the middle flow path forming column 40, the folded piece 40b extending rearward is located in the middle between the folded piece 31b and the protruding piece 31c of the rear flow path forming column 31. 31 is located in the middle of the folded pieces 40b, 40b, and the folded piece 40c extending forward is the folded piece 30 of the front channel forming column 30.
b, 30b, and the folded pieces 40b, 40b and the end faces of the folded pieces 30b, 30c are located on the same virtual straight line extending in the left-right width direction. Each end face of the folded pieces 30b, 30b is located on the same virtual straight line extending in the left-right width direction.

In this manner, the front channel forming pillars 30, 3
A folded flow path 32 is formed by the 0 and the intermediate flow path forming pillars 40 and the rear flow path forming pillars 31, and the front flow path forming pillars 30 and 3 are formed.
The outside air a that has flowed in from the starting ends of the plurality of folded flow paths 32 formed in the right and left directions is divided into left and right distribution shapes.
a1 and a1 are further diverted back and forth in the middle, and the diverted outside airs a2 and a2 flow in a bent shape, respectively, and then merge with the diverted outside air a2 flowing in from the other folded flow passages 32. It passes through the side outside air inlet 19.

Therefore, the outside air a is supplied to the plurality of folded passages 32.
After being divided into two stages in each of the other return channels 32
In order to merge with the diverted outside air a2 divided in two steps, it can efficiently flow into the rear outside air inlet 19 by the ejector effect, thereby ensuring good ventilation of the ventilation port 9 and at the time of ventilation. Noise, so-called wind noise, can be prevented, and rainwater or the like can be reliably prevented from entering the room.

An intermediate flow path forming column 40, 4 is provided between the front flow path forming column 30, 30 and the rear flow path forming column 31, 31.
0 to form the folded flow path 32, the distance between the front flow path forming pillars 30, 30 adjacent in the left-right width direction, and the rear flow path forming pillars 31, 30, The interval between the two can be formed as wide as possible, and the folded flow path 32 can be formed.
The opening area of the starting end and the opening area of the ending opening can be formed to be wide, respectively, and the intake amount of outside air can be increased as much as possible.

[0045]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, a plurality of front horizontal blades are horizontally laid on the front side of the peripheral supporting frame at intervals in the vertical direction, and rainwater or the like is provided behind the front horizontal blade. Since the communication channel forming body for preventing intrusion is provided, infiltration of rainwater and the like can be suppressed in advance by the front horizontal blades, and still, the communication channel forming body is passed through between the front horizontal blades. The infiltrated rainwater or the like can be reliably prevented from entering the room by the communication flow path forming body. In other words, the communication flow path forming body has a plurality of flow path forming pillars staggered in the left and right width direction between the upper and lower frame forming portions of the peripheral support frame, and each of the flow paths adjacent in the left and right width direction. Since the respective side edges of the forming pillar portion are arranged to face each other in the front-rear direction, and a folded channel is formed in a folded shape between the respective channel forming pillar portions,
Each folded flow path communicates with each other also in the left and right width direction,
The outside air that has flowed into each of the folded flow paths is once divided into right and left distribution shapes, and then the divided outside air merges with the divided outside air that has been divided by the other folded flow paths, and is efficiently taken into the room by the ejector effect. be able to.

At this time, since the outside air passes through the folded flow path in a meandering manner, the rainwater or the like entering with the outside air is received by the side wall of the flow path forming column, and enters the room such as the rainwater. Can be reliably prevented from entering.

Further, the communication flow path forming body 13 is
30 and 31 are arranged in a zigzag pattern and communicate from the front outside air inlet 18 side to the rear outside air inlet 19 side via the folded passage 32, and the folded passages 32 are also arranged in the lateral width direction. Since the communication is made over the entire width of the peripheral support frame 10, the folded pieces 30 of the front-side flow path forming pillars 30, 30 adjacent in the left-right width direction.
The outside air a flowing from between the b and 30b flows into the rear channel forming column 31.
The airflow is divided into right and left by a protruding piece 31c protruding from the center portion of the flow passage, and each of the diverted outside airs a1 and a1
Through the folded flow path 32 formed by the pillar body 30a and the folded piece 30b and the pillar body 31a and the folded piece 31b of the rear flow path forming pillar 31. 32
Right and left adjoining rear flow path forming pillars
Between the folded pieces 31b, 31b of the 31, 31, the diverted outside air a1 flowing from the other folded flow path 32 can be merged and pass through the rear outside air inlet 19. Therefore, the front channel forming column 3
The outside air that has flowed in from the start ends of the plurality of folded flow paths 32 formed between 0 and 30 is diverted on the way, and merges with the diverted outside air a1 that has flowed in from the other folded flow paths 32. The effect allows the air to efficiently flow into the rear outside air inlet 19, thereby ensuring good ventilation of the ventilation port 9, and
Noise at the time of ventilation, that is, so-called wind noise, can be prevented, and moreover, it is possible to surely prevent rainwater or the like from entering the room. Further, since the pair of reinforcing ribs 30c, 30c, 31d, 31d on the left and right sides can maintain a constant interval by the protruding width, the outside air is widely and smoothly directed indoors from the terminal opening of the folded flow path 32. There is an effect that it can be taken in by being taken into.

According to the second aspect of the present invention, the folded flow path 32 is formed by the front flow path forming pillars 30, 30, the middle flow path forming pillar 40, and the rear flow path forming pillar 31. Then, the outside air a that has flowed in from the starting ends of the plurality of folded flow paths 32 formed in the front flow path forming pillars 30, 30 is divided into right and left distribution shapes,
The diverted outside airs a1 and a1 are further divided in the middle and back and forth in a distributed manner, and the diverted outside airs a2 and a2 flow in a bent shape, respectively, and then merge with the diverted outside air a2 flowing in from the other folded flow paths 32. Pass through the rear outside air inlet 19. Therefore, outside air a
Is divided into two stages in each of the plurality of folded flow paths 32, and then merges with the diverted outside air a2 divided in the other folded flow paths 32 in two stages. By flowing into the air inlet 19, it is possible to ensure good ventilation of the ventilation port 9, and to prevent noise during ventilation, that is, so-called wind noise, and that rainwater and the like enter the room. This has the effect of reliably preventing this. An intermediate flow passage forming column 40, 40 is provided between the front flow passage forming column 30, 30 and the rear flow passage forming column 31, 31.
Are arranged to form the folded flow path 32, so that the interval between the front flow path forming pillars 30, 30 adjacent in the left-right width direction and the rear flow path forming pillars 31, 31, The gap between the two can be formed as wide as possible, and the opening area at the start end and the area at the end end of the folded flow path 32 can be formed as wide as possible, and the intake amount of outside air can be increased as much as possible. There is an effect that can be increased in number.

[Brief description of the drawings]

FIG. 1 is an explanatory front view of an attached state of a spar according to the present invention.

FIG. 2 is a sectional view taken along line II of FIG. 1;

FIG. 3 is a partially sectional plan view of FIG. 1;

FIG. 4 is a cross-sectional side view of a scallop as a second embodiment.

FIG. 5 is a partial cross-sectional plan view of the same.

[Explanation of symbols]

 A Garagari W Wall 1 Ventilation port 10 Peripheral support frame 11 Front horizontal blade 12 Rear horizontal blade 13 Communication passage forming body

Claims (2)

(57) [Claims] (1) Attached to a ventilation port (9) formed in a wall (W).
Peripheral support frame , which is designed to allow ventilation and can be fitted and fitted in the ventilation opening (9)
Body (10) and the front side of the peripheral support frame (10) in the vertical direction.
A plurality of front horizontal blades (11) suspended horizontally and
Horizontally spaced on the rear side of the edge support frame (10) in the vertical direction
A plurality of rear horizontal blades (12) and front horizontal blades (11)
Immersion such as rainwater placed behind and behind the horizontal blade body (12)
A communication channel forming body (13) for preventing entry is provided, and the communication channel forming body (13) forms upper and lower frames of the peripheral support frame (10).
A plurality of flow path forming pillars (30, 31) are
While standing in a bird shape, it is formed in a U-shaped cross section and
The channel forming column (30) to be placed has the U-shaped opening face
On the other hand, the channel forming column (31) located on the rear side
To the channel forming column (30) located on the front side.
Between the U-shaped opening surface and the U-shaped opening surface of the flow path forming pillar portion (31) located on the rear side.
Arranged substantially flush with each other, and the flow path forming column (30) is a rectangle extending in the vertical direction.
Plate-shaped pillar body (30a) and left and right ends of pillar body (30a)
Folded pieces (30
b, 30b) and project forward from the middle part of the front of the pillar body (30a)
And a pair of left and right reinforcing ribs (30c, 30c)
It is formed into a U-shaped cross section, and the flow path forming column portion (31) is a rectangular plate-shaped column extending vertically.
From the left and right edges of the main part (31a) and the main part (31a).
Folded pieces (31b, 31b) formed by extending forward respectively,
Formed by extending forward from the front center of the pillar body (31a)
From the projecting piece (31c) and the middle part of the back of the pillar body (31a)
A pair of left and right reinforcing ribs (31d, 31
d) and a single piece with a protruding piece (31c) at the center.
It is formed in a U-shape, and further comprises a front channel forming column (30) and a rear channel forming column.
(31) are arranged in a zigzag pattern in the left and right width direction to form the front channel
Insert the folded piece (30b) of the pillar (30) into the rear channel forming pillar (31).
When placed in the middle between the folded piece (31b) and the protruding piece (31c)
Both ends of the folded piece (30b, 31b) and the protruding piece (31c)
The surface on the same virtual straight line extending in the width direction
The folded pieces (30b, 30b, 31b, 3b) of each flow path forming column (30, 31)
1b) and the protruding piece (31c) are folded back
The structure is formed by forming a flow channel (32) . 2. Attached to a ventilation port (9) formed in a wall (W).
Peripheral support frame , which is designed to allow ventilation and can be fitted and fitted in the ventilation opening (9)
Body (10) and the front side of the peripheral support frame (10) in the vertical direction.
A plurality of front horizontal blades (11) suspended horizontally and
Horizontally spaced on the rear side of the edge support frame (10) in the vertical direction
A plurality of rear horizontal blades (12) and front horizontal blades (11)
Immersion such as rainwater placed behind and behind the horizontal blade body (12)
A communication channel forming body (13) for preventing entry is provided, and the communication channel forming body (13) forms upper and lower frames of the peripheral support frame (10).
A plurality of flow path forming pillars (30, 31) are set up between
And have a U-shaped cross section to
The road-forming pillar (30) has a U-shaped opening facing rearward.
On the other hand, the channel forming column (31) located on the rear side
And the flow path forming column (30)
A rectangular plate-shaped column body (30a) extending in the direction
Formed by extending rearward from the left and right edges of (30a)
Folded pieces (30b, 30b) and the middle part of the front of the pillar body (30a)
A pair of left and right reinforcing ribs (30
c, 30c) are formed integrally with each other to form a U-shaped cross section, and the flow channel forming column (31) is a rectangular plate-shaped column extending vertically.
From the left and right edges of the main part (31a) and the main part (31a).
Folded pieces (31b, 31b) formed by extending forward respectively,
Formed by extending forward from the front center of the pillar body (31a)
From the projecting piece (31c) and the middle part of the back of the pillar body (31a)
A pair of left and right reinforcing ribs (31d, 31
d) and a single piece with a protruding piece (31c) at the center.
Folded pieces (30b, 30b) of the channel forming column (30) formed in a U-shape and located on the front side
And the folded piece (31b, 3) of the flow path forming pillar portion (31) located on the rear side.
1b) and an intermediate flow path forming column (40) is disposed at an intermediate position with respect to 1b), and the intermediate flow path forming column (40) has a rectangular plate-shaped column main body (40a) and the same column main body. sides folded piece each from the right and left side edge formed by distracted rearward (40a) (40b, 40b)
And a one-side folded piece (40c) formed by extending forward from one of the left and right side edges of the column body (40a), and further integrally formed. It is shared by standing upside down alternately in the left and right width direction, sharing it in a plan view and arranging it in a symmetrical shape, and extending backward.
Located intermediate the sides folded piece flow path forming pillar portion of one the rear side of (40b) folded piece of (31) (31b) and protruding pieces (31c), the folded piece (31b) on both sides folded piece ( 40b, 40b), and the one-side folded piece (40c) extending forward is arranged in the middle of the folded piece (30b, 30b) of the front channel forming column (30). it shall be the feature. However library structure.