JPH0212510Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention provides a curved ventilation path that connects indoors and outdoors inside a box formed by integrating the upper and lower parts. The present invention relates to a ventilation system in which a ventilation passage is formed and the ventilation passage can be opened and closed by a shielding wing body operated by an air flow.

More specifically, while indoors can be efficiently ventilated in windless or nearly windless conditions, during rainstorms or snowstorms, the ventilation passages are closed by shielding blades to automatically prevent rain and snow from entering the building along with the wind. The present invention relates to a ventilation system that can completely prevent air leakage, in addition, the opening and closing operations of the shielding blades are quiet and can be easily manufactured.

(Prior art and problems to be solved by the invention) As a ventilation system for a building, a device in which a winding air passage is formed inside a box has been proposed. Even if it is bent, it is difficult to completely prevent rain and snow from entering the house along with the wind during a rainstorm or snowstorm. There is also a case where a vent window on the front side of the box is provided with a louver piece that can be tilted manually, but the opening and closing operations are cumbersome, and there are problems in that it cannot be operated in response to the strength of wind and rain. It was hot.

The purpose of the present invention is to provide a ventilation system that can solve these problems.

(Means for Solving the Problems) A ventilation device 1 according to the present invention has a bent ventilation path 3 that is connected to the indoors and outdoors inside a rectangular box 2, and the ventilation path 3 has the following features: The box body 2 can be opened and closed by a shielding wing body 5 operated by air flow, and the box body 2 includes a front plate 6, a rear plate 7, side plates 9,
9. It is composed of a box body 11 that is configured to have a bottom plate 10 and is open at the top, and a top plate 12 that is fitted on the top surface of the box body 11, and includes a front plate 6 and a rear plate of the box body 11. 7 has ventilation window 1
3 and 16 are provided at the upper end portions of the inner surfaces of the side plates 9 and 9, and the lower end portion 40 and both side edge portions 41 and 41 of the rectangular plate shape are provided with a covering made of an elastic material 42 such as rubber. Bearing parts 37, 37 for supporting the rotating shafts 35, 35 from below of the shielding wing body 5, which is formed as a part and having rotating shafts 35, 35 protruding from both sides of the upper end, are formed protrudingly opposite to each other. Further, receiving pieces 39, 39, which are located below the bearing parts 37, 37 and can come into contact with the shielding wing body 5 in a hanging state, are formed protruding from the inner surfaces of the side plates 9, 9 in a facing state. On the other hand, the upper plate 12 has a portion facing the upper end 5a of the shielding wing 5 that is in substantially contact with the upper end 5a, and opposite side edge portions of the lower surface have opposite side edges of the shielding wing 5. Hanging pieces 46, 46 are formed to protrude downwardly and face each other, and have inclined contact surfaces 45, 45 that are inclined downwardly toward the rear and can come into contact with the parts 41, 41. When wind pressure acts on the shielding wing body 5, the shielding wing body 5, which is in a hanging state and functions as a bulkhead forming the bent air passage 3 in the hanging state, has its lower end edge portion 40 close to the box body 2.
A vertical wall 38 for blocking ventilation passages rises from the bottom plate 10 of the
The side edge portions 4 that are in close contact with the front portion 38a of the
1 and 41 close the ventilation passage 3 in an inclined state in which the contact surfaces 45 and 45 are in close contact with each other.

(Function) However, as shown in FIGS. 1 and 5, when the ventilation device 1 of the present invention is attached to the opening 51 provided in the outer wall W, the shielding wing body 5 will hang down in a state of no wind or near no wind. Therefore, the room can be efficiently ventilated through the bent air passage 3.

On the other hand, when a wind pressure higher than a preset value acts on the shielding blade 5 during a rainstorm or snowstorm,
The shielding wing body 5 in a hanging state has its lower edge portion 4
0 is in close contact with the front surface 38a of the vertical wall 38 for blocking the air passage, and both side edge portions 41, 41 of the shielding blade 5 are in close contact with the inclined contact surfaces 45, 45, so that the air passage 3 is in an inclined state. As a result, wind and rain entering through the ventilation window 13 are completely blocked by the shielding wing body 5.

When the wind pressure falls below a predetermined value during the wind and rain, that is, when there is no longer a risk of rain or the like entering the house, the shielding blade 5 rotates downward due to its own weight and opens the ventilation passage 3. , allowing ventilation.

In this way, during wind and rain, the shielding blade 5 repeatedly opens and closes the ventilation passage 3 according to the wind pressure, but the elastic material constituting the lower edge portion and both side edge portions of the shielding blade acts as a shock absorber. This reduces the impact when the shielding wing body 5 collides with the receiving pieces 39, 39 and the hanging pieces 46, 46.

In addition, the receiving pieces 39, 39 that can come into contact with the shielding blade 5 in a hanging state prevent the shielding blade from swinging in a pendulum shape due to changes in wind pressure, and prevent the rotational movement of the shielding blade 5 in response to wind pressure. Therefore, the blocking of the air passage 3 by the shielding wing body 5 is ensured.

(Example) Examples of the present invention will be described below based on the drawings.

First Embodiment In Figs. 1 to 4, a ventilation system 1 according to the present invention is shown.
In this case, a ventilation path 3 that is bent and conducts indoors and outdoors is formed inside the box body 2, and the ventilation path 3 can be automatically opened and closed by a shielding wing body 5 operated by air flow. The entire structure is made of, for example, synthetic resin.

The box body 2 includes a box body 11 that is open at the top and is configured to have a front plate 6, a rear plate 7, side plates 9, 9, and a bottom plate 10, and a top plate 12 that is fitted onto the top surface of the box body 11. It is composed of. In this embodiment, the upper plate 12 is a flat upper plate main body 1.
2a, a partition portion 32 and a falling partition wall 2, which will be described later.
9. A hanging piece 46 is provided below.

A large number of ventilation windows 13 consisting of small rectangular holes are arranged in parallel in the lower half of the front plate 6, and a rectangular ventilation window 16 is formed in the rear plate 7 by cutting the upper part thereof. has been done. On the inner surface of the bottom plate 10, a rectangular ventilation hole 1 is formed at both ends of the bottom plate 10 at its front side and at its center and slightly rear side.
Upright partition walls 20 and 21 forming partition walls 7 and 19 are provided upright. The box body 2 also has a rectangular ventilation hole 25 extending downward from the top plate main body 12a and between it and the bottom plate 10.
The partition wall 27 forming the partition wall 26 and the falling partition wall 29 are
A ventilation passage 3 is formed in the box body 2, which is provided approximately in the center of both the rising partition walls 20 and 21, and in the approximate center between the rising partition wall 21 and the rear plate 7, and bends multiple times in a zigzag shape. . Note that the falling partition wall 29 is integrally molded with the upper plate main body 12a, and in order to reinforce the falling partition wall 29, guide grooves 30 are provided on the inner surfaces of both side plates 9, 9 to guide both ends of the falling partition wall 29. Reinforcing pieces 31, 31 are provided.

The partition wall 27 includes a rectangular plate-shaped partition portion 32 that is integrally molded with the upper plate 12 and partitions the upper part of the inside of the box body 2, and a shielding blade that is rotatably connected to the lower end portion of the partition portion 32. It consists of a body 5. Therefore, the upper plate 12 is in a state where the portion facing the upper end 5a of the shielding wing body 5 is in substantially contact with the upper end 5a. As shown in FIG. 2, the shielding wing body 5 has a rectangular plate shape, and its lower edge portion 40 and both side edge portions 41, 41 are covered parts made of an elastic material 42 such as rubber, and the upper ends thereof have a circular shape. Column-shaped rotation shaft 35, 3
5 is formed protrudingly, and the two shafts 35, 35 are
The supporting columns 36, 36 are integrally provided with the side plates 9, 9 so as to rise from the bottom plate 10, and are rotatably supported by semi-circular bearing portions 37, 37 at the upper ends of the supporting columns 36, 36. Also, on the front edges of the support columns 36, 36,
Receiving pieces 39, 39 for receiving both sides of the shielding wing body 5 in the hanging state are formed to protrude inwardly, so that the shielding wing body 5 can be moved from the hanging state to the shielding wing as shown in FIG. The lower edge portion 40 of the body 5 serves as the rear rising partition wall 21, which is a standing wall 38 for blocking air passages.
It can be rotated within an angular range up to a tilted state in which it contacts the front surface portion 38a and tilts downward toward the rear (the tilted state shown by the dashed line in the figure).
Further, the rotation shaft 35 is provided on the front side of the partition portion 32.
Anti-floating pieces 43 are provided at both rear end portions of the partition portion 32 to prevent floating of the shielding wing body 5. Trapezoidal hanging pieces 46, 46 are provided integrally with the upper plate main body 12a and are provided with an inclined contact surface portion 45 that contacts the edge portion 41 (see FIG. 4). Note that the rear surfaces of the hanging pieces 46, 46 are adapted to come into contact with the front surface of the rising partition wall 21. With such a configuration, the lower end edge portion 40 of the shielding wing body 5 is in close contact with the front face portion 38a of the vertical wall 38 for blocking air passages, and both side edge portions 41, 41 of the shielding wing body 5 are in inclined contact. Surface part 4
The ventilation passage 3 is closed in an inclined state in close contact with the air passages 5 and 45. Note that the dimensions of each part of the shielding wing body 5 and the covering width by the elastic material 42 (the elastic material 42 also functions as a weight) are determined when a wind pressure higher than a preset value is applied, for example, a wind pressure corresponding to a wind speed of 8 to 11 m/sec is applied. In such a case, the shielding wing body 5 is set to close the air passage 3. In the figure, reference numerals 47 and 49 are collar portions that come into contact with the outer surface of the outer wall W, and reference numeral 50 is a leg piece that comes into contact with the lower surface 52 of the opening 51.

However, as shown in FIGS. 1 and 5, when the ventilation system 1 of the present invention is attached to the opening 51 provided in the outer wall W, the above-mentioned "effect" is As explained in Section 1, it is possible to achieve efficient ventilation indoors and to prevent rain, etc. from entering the room.

Particularly in this embodiment, a partition wall 27 is provided inside the box body 2.
In addition to providing rising partition walls 20, 21 and falling partition walls 29, the ventilation path 3 is bent several times, effectively preventing the inflow of external sound, light, and dust. be able to.

Second Embodiment FIG. 6 shows another embodiment of the ventilation system 1 according to the present invention, in which the inside of the box body 2 is divided into two compartments, front and rear, by a partition wall 27, the entirety of which serves as the shielding wing body 5. Board 6
Ventilation windows 13 and 16 in the upper half and the upper half of the rear plate 7
By providing this, a bending ventilation path 3 is formed within the box body 2. Partition wall 27, that is, shielding wing body 5
As in the case of the above-mentioned embodiment, the rotation shafts protruding from both sides of the upper end are rotatably supported by bearings protruding from the inner surfaces of both side plates, and the lower surface of the upper plate 12 is A portion of the shielding wing body 5 facing the upper end 5a is in a state of substantially contacting the upper end 5a.

However, in the hanging state, the lower edge portion 40 of the shielding wing body 5 is in close contact with the front portion 38a of the vertical wall 38 for blocking air passages as the rear plate 7, and both side edge portions 41, 41 are in contact with the inclined surface. It can be rotated within an angular range up to the inclined state in which it is in close contact with the contact surfaces 45, 45 (the inclined state shown by the dashed line in the figure), and the ventilation passage 3 is closed in this inclined state.

(Effects of the invention) The ventilation system according to the invention has the following excellent effects.

The ventilator of the present invention can automatically open and close the air passage formed inside the rectangular box using shielding blades that are operated by air inflow. On the other hand, during a rainstorm or snowstorm, the lower edge of the shielding wing in a hanging state comes into close contact with the front part of the vertical wall for blocking the ventilation path, and both side edges are in contact with the inclined contact surface. The slopes close together to close the ventilation path, automatically and completely preventing wind, rain, and snow from entering the room.

During wind and rain, the shielding blade repeatedly opens and closes the ventilation passage depending on the wind pressure, but since the lower edge and both side edges of the shielding blade are covered with elastic material, The elastic material exhibits cushioning properties, and the impact when the shielding wing collides with the receiving piece or the hanging piece is alleviated. Therefore,
The occurrence of an unpleasant flapping sound during the collision is prevented, and damage to the shielding blades is also prevented.

Since a receiving piece is provided that can come into contact with the shielding blade in a hanging state, the shielding blade is prevented from swinging like a pendulum due to changes in wind pressure, and the rotational movement of the shielding blade in response to wind pressure is prevented. This is done stably, and therefore the air passage is reliably blocked by the shielding wing.

The box body is composed of a box body that is open at the top and a top plate that is fitted onto the top surface of the box body, and a rotating shaft that projects on both sides of the upper end of the shielding wing body is attached to the inner surface of both side plates. Since a structure in which the shielding wing is supported by a formed bearing part is adopted, the shielding wing body can be easily assembled into the box body, and the manufacturing efficiency of the ventilation system can be expected to be improved.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of the ventilation system of the present invention, Fig. 2 is a partially cutaway perspective view showing the box body, Fig. 3 is a perspective view showing the upper plate of the box body, and Fig. 4 5 is a perspective view illustrating the state of contact between the shielding wing body and the inclined contact surface of the trapezoidal hanging piece, FIG. FIG. 3 is a sectional view showing another embodiment of the ventilation device. 1... Ventilation system, 2... Box body, 3... Ventilation path,
5... Shielding wing body, 6... Front plate, 7... Rear plate, 9...
...Side plate, 10...Bottom plate, 12...Top plate, 13,1
6... Ventilation window, 27... Bulkhead, 35... Rotation shaft,
37... Bearing portion, 38... Standing wall for blocking air passage, 38a... Standing wall front part, 39... Receiving piece,
40...Lower end edge portion of the shielding wing body, 41...Side edge portion of the shielding wing body, 45...Slanted contact surface portion, 46...
hanging piece.

Claims (1)

[Claims for Utility Model Registration] A bent ventilation passage 3 that conducts indoors and outdoors is formed inside a rectangular box 2, and the ventilation passage 3 is
The box body 2 can be opened and closed by a shielding wing body 5 operated by air flow, and the box body 2 includes a front plate 6, a rear plate 7, side plates 9,
9. It is composed of a box body 11 that is configured to have a bottom plate 10 and is open at the top, and a top plate 12 that is fitted on the top surface of the box body 11, and includes a front plate 6 and a rear plate of the box body 11. 7 has ventilation window 1
3 and 16 are provided at the upper end portions of the inner surfaces of the side plates 9 and 9, and the lower end portion 40 and both side edge portions 41 and 41 of the rectangular plate shape are provided with a covering made of an elastic material 42 such as rubber. Bearing parts 37, 37 for supporting the rotating shafts 35, 35 from below of the shielding wing body 5, which is formed as a part and having rotating shafts 35, 35 protruding from both sides of the upper end, are formed protrudingly opposite to each other. Further, receiving pieces 39, 39, which are located below the bearing parts 37, 37 and can come into contact with the shielding wing body 5 in a hanging state, are formed protruding from the inner surfaces of the side plates 9, 9 in a facing state. On the other hand, the upper plate 12 has a portion facing the upper end 5a of the shielding wing 5 that is in substantially contact with the upper end 5a, and opposite side edge portions of the lower surface have opposite side edges of the shielding wing 5. Hanging pieces 46, 46 are formed to protrude downwardly and face each other, and have inclined contact surfaces 45, 45 that are inclined downwardly toward the rear and can come into contact with the parts 41, 41. When wind pressure acts on the shielding wing body 5, the shielding wing body 5, which is in a hanging state and functions as a bulkhead forming the bent air passage 3 in the hanging state, has its lower end edge portion 40 close to the box body 2.
A vertical wall 38 for blocking ventilation passages rises from the bottom plate 10 of the
The side edge portions 4 that are in close contact with the front portion 38a of the
1 and 41 close the ventilation passage 3 in an inclined state in which the contact surfaces 45 and 45 are in close contact with each other.