JP4891628B2 - Ventilation equipment - Google Patents

Description

  The present invention relates to a ventilator that is provided on a building material such as a sash frame or a shoji, and ventilates the inside and outside of a room.

Ventilators provided in building materials such as sash frames and shojis for partitioning the inside and outside of buildings are well known. An operating plate is provided inside this type of ventilation device. When the operation knob is operated, the operating plate rotates or slides to open and close the ventilation opening.
JP 2001-234673 A JP-A-9-243121

In the event of a fire or the like, it is preferable to forcibly close the ventilator. However, it is possible that there is no room for checking the state of the ventilator in a tense situation.
At high temperatures, the fuse melts and the damper falls, closing the ventilator, but the cost is high. There was also a case where malfunction occurred due to deterioration of the fuse.

In order to solve the above problems, the present invention is a ventilator that includes a device main body extending horizontally in one direction and a ventilation mechanism incorporated in the device main body, and ventilates the inside and outside of a building,
The device body has a chamber outer wall facing the outside, and a chamber inner wall facing the interior, a number formed in parallel slit-shaped ventilation openings extending vertically in the one direction in each of these walls The space between these wall portions has a first chamber and a second chamber, and the first chamber faces a portion forming the ventilation port of the outdoor wall portion, and the ventilation port of the outdoor wall portion. If always constitutes a vent passage communicating said second chamber, said in surface parts defining a ventilation opening of the chamber inner wall portion, the upper end of the upper end of the chamber inner wall portion of the vent said chamber outer wall portion of the ventilation opening Higher, the lower end of the vent of the indoor side wall is higher than the lower end of the vent of the outdoor wall,
The ventilation mechanism includes an operation plate accommodated in the second chamber of the apparatus main body so as to be movable between a closed position and an open position, and an operation knob for moving the operation plate. When in the closed position, the ventilation port of the indoor side wall portion is closed by following the indoor side wall portion, and the portion of the second chamber on the outdoor side from the operation plate is communicated with the first chamber, and the operation is performed. When the plate is in the open position, the ventilation opening of the indoor side wall portion is opened by moving away from the indoor side wall portion to the outdoor side, and the portion on the indoor side from the operation plate of the second chamber and thus the indoor side wall portion the vent is the first chamber and communicating through between the chamber sidewall portion and the lower end portion of the operation plate,
Furthermore, it comprises a fireproof member made of a non-combustible foam material and extending in the one direction, and this fireproof member is higher than the upper end of the ventilating port of the outdoor side wall portion and from the upper end of the ventilating port of the indoor side wall portion. It is provided on the upper surface of the first chamber at a lower position, and is foamed by heating to close the first chamber .
As a result, even in the event of a fire, even if the operating plate is in the open position, the inside of the ventilation device can be blocked by the foaming of the fireproof member. This can prevent the flame from entering the room.
Moreover, fire protection member, because it is arranged inside the apparatus main body, inconspicuous, it is not name disfiguring.
In the case of foaming, foaming can be performed in the first chamber of the apparatus main body. Further, since the outdoor side wall of the ventilation opening is in a slit shape, it is possible to foamed fire members confining the interior of the apparatus main body to prevent the spilling of the ventilation openings. Thereby, it is possible to reliably close the ventilation path.
Since the fireproof member extends in the longitudinal direction of the apparatus main body, it can be reliably closed even if the ventilation path extends in the longitudinal direction of the apparatus main body. Here, the term “extending” includes not only a case where the extension is continuous in the longitudinal direction of the apparatus main body, but also a case where the extension is arranged throughout the longitudinal direction of the apparatus main body.
The foam material constituting the fireproof member needs to have nonflammability.

The actuating plate is rotatable about one end as an axis, between a closed position in which the other end approaches the wall having the one vent and an open position away from the wall having the one vent. And
It is preferable that the fire prevention member can block between the other end portion of the operating plate at the open position and the wall portion having the other ventilation port by foaming.
As a result, the ventilation shielding state can be maintained even when the flame gets closer and the part of the apparatus melts.
In the above-mentioned feature, the fire prevention member can block the communication portion between the first chamber and the indoor portion of the second chamber when foamed when the operation plate is in the open position. It is preferable.
It is preferable that the fireproof member be capable of closing the ventilation port of the outdoor side wall portion from the first chamber side by foaming.
An end of the working plate opposite to the first chamber side is rotatably connected to the indoor side wall, and an end of the working plate on the first chamber side is connected to the indoor side wall. The fire prevention member is configured to rotate between an accompanying closed position and an open position away from the indoor side wall, and the fire protection member foams when the operating plate is in the open position. It is preferable that the gap between the side end and the indoor side wall can be closed.

  According to the present invention, even in the event of a fire, even if the operating plate is in the open position, the inside of the ventilator can be closed by the foaming of the fireproof member. This can prevent the flame from entering the room. Further, the foamed fire prevention member can be restrained from spilling out from the ventilation port and confined inside the apparatus main body, and the air passage can be reliably closed.

Embodiments of the present invention will be described below.
FIG.1 and FIG.2 shows the ventilation apparatus attached to the sash frame or shoji (not shown) provided in the wall facing the exterior of a building. The ventilation device 1 includes a device body 10 and a ventilation mechanism 20 provided in the device body 10.

  As shown in FIGS. 1 to 3, the apparatus main body 10 is composed of one or a plurality of aluminum molds, and has an outdoor side wall portion 11 facing the outdoors (outdoors) and an indoor side wall portion 12 facing the rooms (indoors). It has a rectangular box shape with a length extending in the left-right direction. The outdoor side wall portion 11 is formed with a first ventilation port 11a connected to the outside (outdoor), and the indoor side wall portion 12 is formed with a second ventilation port 12a connected to the room (indoor). These ventilation openings 11a, 12a form a slit shape extending vertically and are arranged in large numbers on the left and right. The outdoor first ventilation port 11a is disposed at a relatively low position, and the indoor second ventilation port 12a is disposed at a relatively high position.

As shown in FIG. 1, a horizontal protruding piece 13 is provided in the vicinity of the height of the upper end portion of the first ventilation port 11 a of the outdoor side wall portion 11. The horizontal protrusion 13 protrudes horizontally from the outdoor side wall portion 12 toward the indoor side wall portion 12. Near the height of the lower end portion of the first ventilation port 11a, a bottom portion 15 connecting the outdoor side wall portion 11 and the indoor side wall portion 12 is provided. The inside of the apparatus main body 10 is divided into a lower first chamber (air passage) 10 a between the horizontal protrusion 13 and the bottom 15 and a second chamber 10 b above the horizontal protrusion 13. The lower chamber 10a is connected to the outside (outdoors) through the ventilation port 11a. The lower chamber 10a and the upper chamber 10b are connected via the interior side wall 12 and the horizontal protrusion 13. A ventilation port 12 a is formed in the upper chamber 10 b forming portion of the indoor side wall portion 11.

  The ventilation mechanism 20 includes an operation plate 21, an operation knob 22, and a cam 23. The operation plate 21 has a plate shape extending in the left-right direction, and is disposed inside the upper chamber 10 b of the apparatus main body 10. A shaft 21 a is provided at the upper end (one end) of the operating plate 21. The shaft 21a is fitted into a bearing portion 14 provided at a corner portion formed by the ceiling portion of the apparatus main body 10 and the upper end portion of the indoor side wall portion 12 so as to be slidable in the direction orthogonal to the paper surface (left and right) in FIG. ing. As a result, the action | operation board 21 can be rotated centering on the axis | shaft 21a, and can slide to right and left (paper surface orthogonal direction of FIG. 1) along the axis | shaft 21a.

  An operation knob 22 is provided on one side (upper side of the paper surface in FIG. 1) in the upper chamber 10b of the apparatus body 10 so as to be slidable in the left-right direction (the direction orthogonal to the paper surface in FIG. 1). The operation knob 22 passes through the indoor side wall portion 12 and faces the room. The operation knob 22 is connected to the operation plate 21. When the operation knob 22 is slid left and right, the operation plate 21 is slid left and right.

  A cam 23 is provided on one side of the inside of the apparatus main body 10. The cam 23 is disposed so as to be sandwiched between the horizontal protruding piece 13 and the indoor side wall portion 12. As shown in FIG. 4, cam grooves 23 a are formed obliquely on the upper surface of the cam 23. A convex portion 21b at the lower end of the operating plate 21 is inserted into the cam groove 23a.

  When the operation plate 21 is slid left and right with the operation knob 22, the lower end portion (the other end portion) of the operation plate 21 is moved to the indoor side wall portion 12 by the cam action of the cam groove 23a and the convex portion 21b as shown in FIG. It is moved in the direction of approaching and separating. Accordingly, the upper end of the operating plate 21 is between the closed position (solid line in FIG. 1) approaching the indoor side wall portion 12 and the open position (imaginary line in FIG. 1) away from the indoor side wall portion 12 to the outdoor side. It is rotated around the shaft 21a.

  When the operation plate 21 is in the closed position, the second ventilation port 12a is closed. The operating plate 21 is provided with a packing 24 for ensuring the closed state of the second ventilation port 12a.

  As shown by a two-dot chain line in FIG. 1, when the operation plate 21 is in the open position, a communication portion 10 c is formed between the lower end portion of the operation plate 21 and the inner surface of the indoor side wall portion 12. The second ventilation port 12a on the indoor side communicates with the ventilation path 10a via the communication part 10c, and thus communicates with the first ventilation port 11a on the outdoor side. As a result, the room communicates with the outside through the second ventilation port 12a, the communication portion 10c, the ventilation path 10a, and the first ventilation port 11a in this order. As a result, the room and the outside can be ventilated.

The most characteristic part of the present invention will be described.
As shown in FIGS. 1 and 3, the apparatus main body 10 is provided with a fire prevention member 30 made of a foam material. The fire prevention member 30 is made of a non-combustible foam material, and foams when reaching a certain temperature, so that the volume becomes several tens of times. Examples of nonflammable foams include graphite / aluminum hydroxide mixtures and ceramic fiber composites. The noncombustible foam material constituting the fireproof member 30 may be in the form of a paint. Examples of the foam paint include foam-type fire-proof paint such as Frame Control (registered trademark of Iwatani Corporation and Okitsumo Corporation).

  The fire prevention member 30 is provided in the ventilation path 10 a of the apparatus main body 10. Specifically, it is disposed on the upper surface of the bottom portion 15. As shown in FIG. 3, the fire prevention members 30 extend in a row along the left-right direction (the longitudinal direction of the apparatus main body 10).

In the above configuration, it is assumed that a fire has occurred in a neighbor's house and a flame has come from the outside. At this time, it is assumed that the operation plate 22 of the ventilator 1 is in the open position (two-dot chain line in FIG. 1), and the vent 12a is open. The ambient temperature of the ventilation device 1 rises due to the flame, and the fire prevention member 30 also increases in temperature. Eventually, the fire protection member 30 reaches the foaming temperature and foams. As a result, as shown in FIGS. 5 and 6, the fire prevention member 30 fills the inside of the air passage 10a and closes the outdoor ventilation port 11a from the inside, and the lower end portion and the indoor side wall portion of the operating plate 21 in the open position. The communication part 10 c formed between the two is closed. Thereby, even if the operation plate 21 is located at the open position, the ventilation path of the ventilator 1 can be closed, and the flame can be prevented from entering the room through the ventilator 1.
Since the ventilation port 11a has a narrow slit shape, it is possible to suppress the foamed fire protection member 30 from spilling out of the ventilation port 11a. Thereby, the fireproof member 30 can be confined in the apparatus main body 10 and can be reliably filled in the air passage 10a, and the air passage 10a can be reliably closed. Since the fire prevention member 30 extends in the longitudinal direction of the apparatus main body 10, it can be reliably closed even if the ventilation path 10 a extends in the longitudinal direction of the apparatus main body 10, and is arranged in the longitudinal direction of the apparatus main body 10. The large number of ventilation openings 11a can be reliably closed from the inside.
Even if the flame gets closer and the outdoor side wall portion 11 becomes extremely hot and the vicinity of the first ventilation port 11a is melted, the fire prevention member 30 establishes the communication portion 10c between the lower end portion of the operating plate 21 and the indoor side wall portion 12. As long as it is closed, the closed state of the ventilation device 1 can be maintained, and intrusion of flame into the room can be prevented.
During normal use, the fire protection member 30 is disposed inside the apparatus main body 10 and therefore does not stand out and does not impair the aesthetic appearance.

Next, another embodiment of the present invention will be described. In the following embodiments, the same reference numerals are attached to the drawings as appropriate for configurations overlapping with the above-described embodiments, and the description is simplified.
The fire prevention member 30 should just be arrange | positioned in the position which can obstruct | occlude the opening state of the ventilation path 10a by the action | operation board 21 of an open position, when it foams. As such a position, the inside of the ventilation path 10a is preferable. In the said 1st Embodiment, although it provided in the bottom face inside the ventilation path 10a, in 2nd Embodiment shown in FIG. 7, the fire prevention member 30 is the inner surface (inside of the indoor side wall part 12 of the indoor side wall part 12) of the ventilation path 10a. (Inner side). Even in this case, as shown in FIG. 8, when the temperature rises due to a fire, the fireproof member 30 foams and fills the inside of the air passage 10a and closes the air passage 10a. Further, the foamed fire prevention member 30 blocks the outdoor ventilation port 11 a and also blocks the communication portion 10 c between the lower end portion of the operating plate 21 in the open position and the indoor side wall portion 12. Thereby, even if the operation plate 21 is located at the open position, the flame can be prevented from entering the room through the ventilation device 1.

  In the third embodiment shown in FIG. 9, a cushion member 25 made of an elastic body is provided on the outdoor side surface of the lower end portion of the operating plate 21. As indicated by the two-dot chain line in FIG. 2, when the operating plate 21 rotates to the outdoor side and reaches the open position, the lower end of the operating plate 21 contacts the tip edge of the horizontal protrusion 13 with the cushion member 25 interposed therebetween. It comes to touch. A communicating portion 10c is formed between the lower end portion of the operating plate 21 in the open position and the inner surface (the inner surface of the wall portion 12) of the air passage 10c or the bottom surface (the upper surface of the bottom portion 15) of the air passage 10c. It has become so.

  The fire prevention member 30 of the third embodiment is disposed on the upper surface of the air passage 10a (the lower surface of the horizontal protrusion 13). As shown in FIG. 10, when the temperature rises due to a fire, the fireproof member 30 foams and closes the outdoor ventilation port 11a, fills the inside of the ventilation path 10a, and blocks the ventilation path 10a. Further, the communication portion 10 c between the lower end portion of the operating plate 21 in the open position and the indoor side wall portion 12 or the bottom portion 15 of the apparatus main body 10 is closed. Thereby, even if the operation plate 21 is located at the open position, the flame can be prevented from entering the room through the ventilation device 1.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the fire prevention member 30 may be in a position where the open state of the air passage by the operation plate 21 in the open position is closed when foamed, and may be provided on the inner surface of the outdoor side of the air passage 10a. It may be provided in the upper chamber 10b.
The fire prevention members 30 do not need to be continuous in the longitudinal direction of the apparatus main body 10, and may be extended so as to cover the longitudinal direction of the apparatus main body 10 as a whole even if the fire prevention member 30 is interrupted.
The indoor ventilation port 12a may be in constant communication with the ventilation path in the apparatus main body 10, while the operating plate 21 may be configured to open and close the outdoor ventilation port 11a.
The operation plate 21 is not limited to being opened and closed by a combined operation of sliding and rotation, but may be opened and closed only by a sliding operation, or may be opened and closed only by a rotating operation.
This ventilator can be widely applied to ventilators attached to sash frames, shojis, and other various fittings. For example, the ventilator can be applied to ventilators integrated with the upper arm of shojis.

It is a longitudinal cross-sectional view which shows the ventilation apparatus which concerns on 1st Embodiment of this invention in a state with an action | operation board in a closed position. It is the figure which looked at the said ventilation apparatus from the indoor side. FIG. 3 is a plan cross-sectional view of the ventilator along the line III-III in FIG. 2. It is a top view of the cam of the ventilation mechanism of the said ventilation apparatus. It is a longitudinal cross-sectional view at the time of a fire occurring when the operation plate is in the open position of the ventilation device. It is a plane sectional view showing the above-mentioned ventilation device at the time of a fire along the VI-VI line of FIG. It is a longitudinal cross-sectional view which shows the ventilation apparatus which concerns on 2nd Embodiment of this invention in a state with an action | operation board in a closed position. It is a longitudinal cross-sectional view at the time of a fire having occurred when the action | operation board is an open position about the ventilation apparatus of the said 2nd Embodiment. It is a longitudinal cross-sectional view which shows the ventilation apparatus which concerns on 2nd Embodiment of this invention in a state with an action | operation board in a closed position. It is a longitudinal cross-sectional view at the time of a fire having occurred when the action | operation board is an open position about the ventilation apparatus of the said 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ventilation apparatus 10 Apparatus main body 10a Ventilation path (1st chamber)
10b Upper chamber (second chamber)
10c communicating portion 11 outdoor side wall portion 11a facing outside outdoor ventilation port 12 facing outdoor side indoor side wall portion 12a facing indoor side ventilating port 13 indoor side horizontal protrusion 14 bearing portion 15 bottom portion 20 ventilation mechanism 21 actuating plate 21a shaft 21b convex Department (Cam Follower)
22 Operation knob 23 Cam 23a Cam groove 24 Packing 30 Fireproof member

Claims (2)

A ventilation device comprising a device body extending in one direction horizontally and a ventilation mechanism incorporated in the device body, and ventilating the inside and outside of a building,
The device body has a chamber outer wall facing the outside, and a chamber inner wall facing the interior, a number formed in parallel slit-shaped ventilation openings extending vertically in the one direction in each of these walls The space between these wall portions has a first chamber and a second chamber, and the first chamber faces a portion forming the ventilation port of the outdoor wall portion, and the ventilation port of the outdoor wall portion. If always constitutes a vent passage communicating said second chamber, said in surface parts defining a ventilation opening of the chamber inner wall portion, the upper end of the upper end of the chamber inner wall portion of the vent said chamber outer wall portion of the ventilation opening Higher, the lower end of the vent of the indoor side wall is higher than the lower end of the vent of the outdoor wall,
The ventilation mechanism includes an operation plate accommodated in the second chamber of the apparatus main body so as to be movable between a closed position and an open position, and an operation knob for moving the operation plate. When in the closed position, the ventilation port of the indoor side wall portion is closed by following the indoor side wall portion, and the portion of the second chamber on the outdoor side from the operation plate is communicated with the first chamber, and the operation is performed. When the plate is in the open position, the ventilation opening of the indoor side wall portion is opened by moving away from the indoor side wall portion to the outdoor side, and the portion on the indoor side from the operation plate of the second chamber and thus the indoor side wall portion the vent is the first chamber and communicating through between the chamber sidewall portion and the lower end portion of the operation plate,
Furthermore, it comprises a fireproof member made of a non-combustible foam material and extending in the one direction, and this fireproof member is higher than the upper end of the ventilating port of the outdoor side wall portion and from the upper end of the ventilating port of the indoor side wall portion. A ventilator provided on an upper surface of the first chamber at a low position and foaming by heating to close the first chamber . On the end portion of the actuating plate, the rotatably connected to the indoor side wall portion, the lower end portion of the actuating plate, between an open position and a closed position to accompany the chamber sidewall portion away from the chamber side wall It is designed to rotate and move
The fire member, when the operating plate is foamed when the open position, ventilation system according to claim 1, characterized in that for closing the space between the lower end and the interior side wall portion of the actuating plate.

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