JP2014118696A - Door panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door panel capable of preventing deterioration of heat insulating property, airtightness, and sound insulating property even when ventilation property is applied to the door panel.SOLUTION: An indoor side ventilation port Th, an outdoor side ventilation port 1e, and a communication passage 1h for communicating both the ports are formed in a door panel 1 equipped with a ventilation function communicating indoor and outdoor sections with each other. The communication passage 1h has a connection passage allowing the air to flow in a direction along the surface of the door panel 1, and the connection passage is provided with: a communication shut-off mechanism having a shut-off plate 12 for shutting off the communication between the outdoor side ventilation port 1e and the indoor side ventilation port Th; and a shut-off member moving mechanism 20 for moving the shut-off plate 12 between a shut-off position and a communication position. The shut-off member moving mechanism 20 includes a fixing member 28 capable of sandwiching and holding the shut-off plate 12 arranged at the shut-off position between separation members.

Description

  The present invention relates to a door. More specifically, it is a door installed at the entrance of a residential building that communicates the interior and exterior of the residential building, in particular, the entrance of a residential building such as a condominium or a hotel that requires high functionality. It is related with the door provided with the ventilation function which distribute | circulates gas.

  Recent residential buildings have adopted a structure that reduces the influence of the external climate on the indoor environment for the purpose of improving the living environment. For example, structures that can achieve high heat insulation, high airtightness, and sound insulation have become common.

  In the case of a building that has a structure that can achieve high thermal insulation, natural ventilation inside the building (indoors) can hardly be expected, so the equipment and mechanism for ventilation must be installed in the building itself or its accessory doors, etc. It is necessary to be able to ventilate the room.

  Conventionally, as a method of ventilating a room, a ventilation mechanism is provided at a door installed at an entrance that communicates the room and the outside. Specifically, glazing windows are provided on the inner surface and the outer surface of the door, respectively, and a ventilation passage that communicates between the glazing windows is provided in the door.

  When simply ventilating, a glass window having a structure in which mountain-shaped steel plates are arranged at equal intervals is used. However, since such a louvered window remains in a state in which the ventilation path is opened, even if ventilation can be performed, heat insulation properties and the like are lost. For this reason, a plate-like slide member that can open and close the glazing window is provided, and the glazing window can be opened and closed by the slide member.

  For example, in Patent Document 1, a vent passage that communicates between a vent formed at the lower end of a door and a louver window provided on the interior surface of the door is provided in the door, thereby providing a vent function to the door. ing. And the plate-shaped slide member which can open and close a glazing window is provided, and it is set as the structure which can open and close a glazing window with a slide member.

  However, in the case of the technique of Patent Document 1, the interior of the glass window is simply separated from the interior and the exterior by a single slide member, and there is a gap between the structures, so that the heat insulating properties can be achieved even if the glass window is closed. And airtightness is reduced.

  Among the door performances described above, Patent Document 2 discloses a technique for improving the sound insulation of a door provided with a glazing window.

  Patent Document 2 discloses a door in which a louver window is provided on each of an inner surface and an outer surface of the door, and a ventilation passage that communicates between the glazing windows is provided in the door. In the door of Patent Document 2, an acoustic maze is provided in the ventilation passage, and a sound absorbing material is disposed in the acoustic maze. And it is described in patent document 2 that sound insulation can be maintained to some extent not only in the state which closed the glazing window but in the state which opened the glazing window, ensuring such ventilation. .

  However, the sound insulation of the door is important in terms of whether or not there is a member that exhibits a sound insulation function in the thickness direction of the door, that is, the surface density of the door. Then, when the ventilation passage is provided in the center of the door as in the technique of Patent Document 2, the surface density at the center of the door is lowered, and maintaining the sound insulation as assumed in Patent Document 2 is not possible. Practically difficult.

  And in order to ensure the heat insulation of a door, the heat insulation of the door center part is important. Then, if a vent passage is provided in the center of the door as in Patent Document 2, even if the heat insulating property of the part of the window is slightly improved, the heat insulating property as the door is inevitably lowered.

  By the way, in a highly functional building having high airtightness, there is a problem that it becomes difficult to open and close the door because the differential pressure inside and outside the room becomes large, and a technique for solving such a problem has been developed (for example, Patent Documents). 3).

  Patent Document 3 discloses a door provided with an opening / closing mechanism capable of opening and closing a ventilation path as necessary by providing a ventilation path communicating indoors and outdoors and operating a partition provided in the middle of the ventilation path. Has been. Specifically, the door of Patent Document 3 has a structure in which the opening / closing mechanism of the ventilation path is interlocked with the locking mechanism of the door, and when the door is unlocked, the ventilation path is opened and the door is locked. The distribution path is closed. For this reason, when the door is unlocked, the inside and outside are communicated and the differential pressure inside and outside becomes small, so that the door can be easily opened and closed.

  However, the door of Patent Document 3 is merely a technique for eliminating the differential pressure and facilitating the opening and closing of the door, and it must be unlocked in order to ventilate. The structure of the opening / closing mechanism) cannot be used as a ventilation mechanism for performing ventilation as it is.

  On the other hand, if the opening / closing mechanism is not interlocked with the door locking mechanism, there is a possibility that the opening / closing mechanism can be employed as a ventilation mechanism that ventilates the room and the outside while being locked. In other words, in addition to the door locking mechanism, an operating mechanism (for example, an operating mechanism such as a thumb turn) that operates the opening / closing mechanism of the ventilation mechanism is provided, and this operating mechanism is connected to the operating rod. The ventilation structure of the door can also be used as a ventilation mechanism.

  However, even in this case, the rotating motion of the operating mechanism is converted into the linear motion of the operating rod, and the linear motion of the operating rod is further converted into the rotational motion of the partitioning body to open and close the ventilation path. It becomes very complicated.

  Moreover, in the door of patent document 3, it is necessary to provide the space which provides an operation mechanism etc. in a door separately from a ventilation path. Then, since the part in which a heat insulating material etc. do not exist in a door increases, it is inevitable that heat insulation property falls.

  As described above, at present, there are no doors used in high-function residential buildings with high heat insulation, air tightness, and sound insulation that can maintain high heat insulation even if ventilation is provided. There is a need for the development of such doors.

Japanese Utility Model Publication No. 4-49357 JP-A-9-217561 JP 2012-127128 A

  In view of the above circumstances, an object of the present invention is to provide a door that can prevent deterioration in heat insulation, airtightness, and sound insulation even when ventilation is provided.

The door according to the first aspect of the invention is a door having a ventilation function for communicating between the room and the outside, and the door includes a room-side air vent that communicates the room and the inside of the door, and the room and the inside of the door. And a communication passage that communicates between the outdoor ventilation port and the indoor ventilation port, and the communication passage is formed in a direction along the surface of the door. The communication channel is provided with a communication blocking mechanism for blocking communication between the outdoor vent and the indoor vent, and the communication blocking mechanism. Is a member that separates the connection channel between the outdoor vent and the indoor vent, and has a vent that communicates between the outdoor vent and the indoor vent A separating member, a blocking position that approaches the separating member and closes the vent, and is separated from the separating member and A blocking member that is movably provided between the communication position that opens the pores, and a blocking member moving mechanism that moves the blocking member between the blocking position and the communication position. The blocking member moving mechanism includes a fixing member that can hold the blocking member disposed at the blocking position between the separation member and the separation member.
The door according to a second aspect of the present invention is the door according to the first aspect, wherein the blocking member includes a contact portion that contacts the separation member at the blocking position, and the contact portion is softer than the separation member and the blocking member. It is formed of a material.
The door according to a third aspect of the present invention is the door according to the first or second aspect, wherein the sound insulating material is provided in the communication passage, and the sound insulating material is located at a position facing the indoor vent in the communication passage. It is characterized by being arranged.
According to a fourth aspect of the invention, in the first, second or third aspect of the invention, the separation member includes a plurality of separation walls disposed so as to surround the indoor vent, and the plurality of separation walls. And having a space separated from the outdoor vent, and among the plurality of separation walls, the vent hole is provided in a separation wall that is not opposed to the outdoor vent. .
According to a fifth aspect of the invention, in the first, second, third or fourth aspect of the invention, the blocking member includes an engaging portion that engages with the fixing member, and the blocking member moving mechanism includes the fixed member. A fixing member moving means for moving the member between an engaging position for engaging the engaging portion and a holding position for holding the blocking member between the separating member, The engaging portion is formed such that when the fixing member is engaged, the blocking member is moved to the communication position.
The door according to a sixth aspect is the door according to the fifth aspect, wherein the blocking member is provided so as to be swingable with respect to the separation member, and the fixing member moving means moves the fixing member from the engagement position to the position. The engagement portion is linearly moved to a holding position, and the swinging amount of the blocking member gradually increases while the fixing member linearly moves from the engagement position to the holding position. It is characterized as formed.
(Fireproof)
According to a seventh aspect of the invention, in the first, second, third, fourth, fifth or sixth aspect of the invention, the blocking member is constantly applied with a force for moving the blocking member to the blocking position. The blocking member moving mechanism is provided with a holding member that holds the blocking member in that state when the blocking member is disposed at the communication position, and the whole or a part of the holding member has a temperature fuse function. It is characterized by having.

According to the first invention, when the blocking member is moved from the blocking position to the communication position by the blocking member moving mechanism, the connection channel and the ventilation hole of the separation member are provided between the outdoor vent and the indoor vent. Is communicated via. Therefore, by operating the blocking member moving mechanism, the interior and the exterior can be communicated and the room can be ventilated. Moreover, if the blocking member is held between the fixing member and the separating member while the blocking member is in the blocking position, the blocking member can be firmly attached to the separating member. Then, since the airtightness between the blocking member and the separating member can be improved, the airtightness by the door can be increased even if a ventilation function is provided in the door. Further, it is possible to prevent the blocking member from vibrating due to wind or other external factors. Furthermore, since the blocking member separates the outdoor vent and the indoor vent at the position of the connecting flow path that allows air to flow in the direction along the surface of the door, the blocking member is provided between the outdoor vent and the blocking member. A buffer space can be formed. Then, heat insulation can be improved compared with the case where outside air contacts an indoor vent directly.
According to the second aspect, since the contact portion is formed of a material softer than the separation member and the blocking member, the contact portion can be brought into close contact with the separation member. Then, the airtightness between the outdoor vent and the indoor vent can be enhanced, and the sound insulation can be improved. In addition, even if the blocking member vibrates, noise can be prevented.
According to the third aspect of the invention, since the sound insulation property can be covered by the sound insulation material due to the reduction in the surface density in the thickness direction of the door due to the provision of the indoor vent and the communication passage. Can be improved.
According to the fourth aspect of the present invention, since the indoor vent can be separated from the outdoor vent by the plurality of separation walls, the heat insulation effect and the sound insulation effect can be enhanced.
According to the fifth aspect of the present invention, the position of the blocking member can be moved simply by moving the fixing member to disengage from the engaging portion, so that the structure of the blocking member moving mechanism can be simplified. .
According to the sixth aspect, since the fixing member is moved linearly, the structure for moving the fixing member can be a simple structure. Further, the blocking member is provided so as to be swingable with respect to the separating member, and the engaging portion gradually swings while the fixing member linearly moves from the holding position to the engaging position. It is formed to be large. Then, the resistance when moving the fixing member from the holding position to the engaging position can be reduced.
According to the seventh aspect, in the state where the blocking member is in the communication position, the blocking member can be moved to the blocking position in the event of a fire or the like.

It is a schematic explanatory drawing of the door unit DU provided with the door 1 of this embodiment, (A) is a figure of the state seen from the room inner side, (B) is a schematic enlarged view of the ventilation | gas_flowing plate 1p. It is a schematic sectional explanatory drawing of the door unit DU provided with the door 1 of this embodiment, Comprising: It is a schematic expansion explanatory drawing of the part which provided the communication interruption | blocking apparatus 10. FIG. It is explanatory drawing of the operation state of the communication interruption | blocking apparatus 10, Comprising: (A) is the state which has arrange | positioned the interruption | blocking plate 12 in the interruption | blocking position, (B) is the state which has arrange | positioned the interruption | blocking plate 12 in the communication position. It is a perspective view explaining the operating state of the communication interruption | blocking apparatus 10, Comprising: (A) is the state which has arrange | positioned the interruption | blocking plate 12 in the interruption | blocking position, (B) is the state which has arrange | positioned the interruption | blocking plate 12 in the communication position. It is a schematic explanatory drawing of the entrance which provided the door unit DU provided with the door 1 of this embodiment. It is a schematic explanatory drawing of the door unit DU provided with the door 1 of other embodiment, (A) is a figure of the state seen from the room inner side, (B) is a schematic enlarged view of the ventilation | gas_flowing plate 1p. It is a schematic sectional explanatory drawing of the door unit DU provided with the door 1 of other embodiment, Comprising: It is a schematic expansion explanatory drawing of the part which provided the communication interruption | blocking apparatus.

Next, an embodiment of the present invention will be described with reference to the drawings.
The door of the present invention is a door that is attached to an entrance that communicates the interior and the exterior of a residential building, and even if it has a ventilation function that communicates between the interior and the exterior, heat insulation, air tightness, and sound insulation are provided. It is characterized in that it can be prevented from lowering.

  The residential building where the door of the present invention is installed is not particularly limited. For example, between the living space where it is desired to maintain high heat insulation, airtightness, and sound insulation between the outside and the outside. Suitable as a separating door. For example, it is required to separate the outside and the room with high functionality (high heat insulation, high air tightness, sound insulation, etc.), such as each dwelling unit of an apartment house such as an apartment or a room of a hotel. Suitable for doors installed at the entrance of living rooms. Of course, it can also be used as a door that separates the rooms of each apartment in the apartment and the room and the hallway.

  Below, the case where it uses for the entrance door of the dwelling unit of an apartment is demonstrated as a representative.

(Door unit DU)
First, before explaining the door 1 of this embodiment, the door unit DU which employ | adopted the door 1 of this embodiment is demonstrated easily.

  In FIG. 5, the code | symbol EW has shown the entrance side wall which has an opening part for attaching the door unit of the entrance / exit of a dwelling unit, and the code | symbol F has shown the common hallway.

  As shown in FIG. 5, the door unit DU is attached to an opening formed in the entrance side wall EW, and includes a door 1 and a door frame DF to which the door 1 is attached.

As shown in FIG. 1, the door frame DF includes a pair of eaves frames Da and Db, and a lower frame Dc and an upper frame Dd provided so as to connect the lower ends and upper ends of the eaves frames Da and Db. It is configured. The door frame DF has a substantially rectangular opening Dh (see FIG. 2) surrounded by a pair of eaves frames Da, Db, a lower frame Dc, and an upper frame Dd.
In the present specification, the opening Dh means a space that completely communicates the front and back of the door frame DF, and the opening Dh includes a portion of the door contact formed in the door frame DF. Not.

  As shown in FIG. 2, the door 1 is attached to the door frame DF. The door 1 is substantially similar to the opening Dh and is formed to be slightly larger than the opening Dh. That is, the door 1 is formed in such a size that the opening Dh of the door frame DF can be closed in a state where the door 1 is closed (the state shown in FIG. 2).

  The door 1 is swingably connected to the door frame DF by connecting means. Specifically, the door 1 is connected to the door by a connecting means so that the door tip (right end in FIG. 1) can swing horizontally with its door butt (left end in FIG. 1) as a fulcrum. It is connected to the frame DF. That is, the opening Dh of the door 1 can be opened and closed by swinging around the door tip.

  As shown in FIG. 2, a so-called door stop is provided on the front surface (left surface in FIG. 2) of the door frame DF. This door stop is normally provided in all of a pair of eaves frames Da and Db, upper frame Dd, and lower frame Dc. A cushion P is generally attached to this door stop. The cushion P is provided to absorb an impact when the door 1 is closed and to maintain airtightness between the door frame DF and the door 1.

  That is, since the cushion P is disposed so as to surround the opening Dh of the door 1, if the door 1 is closed so that the surface thereof is in contact with the cushion P, the opening Dh can be closed almost airtightly.

  Therefore, as shown in FIG. 5, if the door unit DU is attached to the opening formed in the entrance side wall EW and the door 1 is closed, the opening Dh of the door unit DU can be closed almost airtightly. The outdoor can be separated almost airtightly.

  In addition, although the cushion P attached to a door stop is not specifically limited, What used the inside became hollow normally is used. The reason is to increase the flexibility of the cushion P and to improve the shock absorption and the adhesion with the door 1. In particular, in order to increase the airtightness of the door unit DU, it is preferable to increase the contact area between the cushion P and the door 1 to increase the adhesion with the door 1. For example, if a cushion having a substantially flat front end surface is used, the air tightness of the door unit DU can be improved.

(Door 1)
Next, the door 1 of the present embodiment will be described.

  The door 1 of this embodiment is a door which has heat insulation and sound insulation. Specifically, as shown in FIG. 2, the door 1 has a pair of surface plates 1a and 1b, and an internal member 1c such as a heat insulating material or a sound insulating material is interposed between the pair of surface plates 1a and 1b. It is formed between. For this reason, the door 1 itself has a certain degree of heat insulation and sound insulation.

  On the other hand, when the door 1 of this embodiment is attached to the door unit DU as described above, the door 1 can be vented through the door 1 while the door D is closed in an almost airtight state when the door 1 is closed. In addition, a communication blocking device 10 is provided.

(Communication blocking device 10)
Next, the communication blocking device 10 for the door 1 will be described. In the following, in FIG. 2, the present embodiment is such that the right side of the door 1 is an indoor space and the left side of the door 1 is an outdoor space. The case where the door unit DU provided with the door 1 is installed will be described.
Hereinafter, of the pair of surface plates 1a and 1b of the door 1, the surface plate 1a is referred to as an inner surface plate 1a, and the surface plate 1b is referred to as an outer surface plate 1b.

(Structure of door 1)
As shown in FIG. 2, a portion in which the above-described internal member 1 c is not accommodated is provided in the lower portion of the door 1 of the present embodiment. In this portion, a space 1h is formed between the inner surface plate 1a and the outer surface plate 1b. And in the door 1 of this embodiment, indoor space and outdoor space are connected via this space 1h.

  Specifically, an opening 1 e is provided at the lower end of the door 1. As shown in FIG. 2, when the door 1 is attached to the door unit DU, the cushion P provided on the door of the lower frame Dc and the lower end of the inner surface plate 1a are in close contact with each other. However, a gap g is formed between the lower end of the door 1 and the upper surface of the lower frame Dc. Therefore, the space 1h below the door 1 is communicated with the outdoor space via the gap g and the opening 1e.

  On the other hand, the inner surface plate 1a is provided with an opening 1r which is a through-hole penetrating the front and back. A ventilation plate 1p is attached to the opening 1r so as to close the opening 1r. However, a plurality of through holes Th are formed in the ventilation plate 1p (see FIG. 1). Therefore, the space 1h and the indoor space are communicated with each other through the plurality of through holes Th of the ventilation plate 1p. In addition, an opening s in which an operation portion 25 of the blocking member moving mechanism 20 described later is disposed is provided in the central portion of the ventilation plate 1p separately from the through hole Th.

  Because of the structure as described above, in the door 1 of the present embodiment, the indoor space and the outdoor space are communicated with each other through the gap g, the opening 1e, the space 1h, and the plurality of through holes Th of the ventilation plate 1p. That is, the outside air that has flowed into the space 1h from the opening 1e can be supplied into the room through the through hole Th, and the indoor air can be flowed into the through hole Th space 1h and discharged to the outside through the opening 1e and the gap g. In other words, the indoor space can be ventilated through the gap g, the opening 1e, the space 1h, and the plurality of through holes Th of the ventilation plate 1p.

  The opening 1e, the plurality of through-holes Th of the ventilation plate 1p, and the space 1h correspond to an outdoor vent, an indoor vent, and a communication passage in the claims, respectively. Hereinafter, the opening 1e is defined as the outdoor vent 1e, the plurality of through holes Th of the vent plate 1p are defined as the indoor vents Th, and the space 1h is defined as the communication passage 1h. Further, in the case of the structure as shown in FIG. 2, in the communication passage 1h, a portion of the outdoor vent 1e up to the through hole Th closest to the outdoor vent 1e (in other words, the through hole Th positioned at the lowest position) is formed. This corresponds to the connecting flow path referred to in the claims.

  In addition, the opening 1e may be formed in the whole lower end width direction of the door 1, or may be formed in a part of the lower end width direction of the door 1. In particular, in the width direction of the door 1, it is desirable to be provided at a position corresponding to the position where the opening 1r is provided in the inner surface plate 1a.

Further, the opening 1e is provided at the lower end of the door 1 to reduce the strength. Specifically, the strength with respect to the direction in which the inner surface plate 1a and the outer surface plate 1b are moved closer to each other is reduced. For this reason, the door 1 having the opening 1e at the lower end has a wall member for connecting the inner surface plate 1a and the outer surface plate 1b, that is, a strength holding member having a wall-shaped portion intersecting the inner surface plate 1a and the outer surface plate 1b. If is provided. For example, the C-type steel having the same length as the width of the door 1, specifically, the distance between the inner surface of the door end and the inner surface of the door end and the length of the door 1 is a strength retaining member. It is arrange | positioned inside the lower end of the door 1 as 1f. When the strength holding member 1f is provided, the wall-like portion of the strength holding member 1f inhibits (or blocks airtightly) ventilation between the outdoor vent 1e and the indoor vent Th. For this reason, in order to improve the air permeability between both, the said wall-shaped part of the intensity | strength holding member 1f is formed with the through-hole which penetrates a wall-shaped part. The position and size of the through hole are not particularly limited, but are usually provided at a position and size corresponding to the outdoor vent 1e in order to improve air permeability.
Below, the case where the strength holding member 1f like FIG. 2 is provided in the lower end of the door 1 and the through-hole is formed in the said wall-shaped part of the strength holding member 1f is demonstrated as a representative.

(Communication blocking device 10)
As shown in FIG. 2, the communication passage 1h is provided with a communication blocking mechanism 20 that allows or blocks the air flow between the outdoor vent 1e and the indoor vent Th. A communication cutoff device 10 is provided.
Hereinafter, although the communication cutoff device 10 is demonstrated based on FIGS. 2-4, in order to make an understanding of a structure easy in FIG. 4, description of the side plate 11b of the separation member 11 is abbreviate | omitted.

  As shown in FIG. 2, the communication blocking device 10 includes a separation member 11 disposed between the indoor vent hole Th and the outdoor vent hole 1 e. The separation member 11 is a long member formed in a substantially U shape in a sectional view. Specifically, the separation member 11 includes a separation plate 11a located on the bottom surface, and side plates 11b and 11c erected on both ends in the width direction of the separation plate 11a.

  As shown in FIG. 1, the separation plate 11a of the separation member 11 is provided such that its lower surface is in close contact with the upper surface of the wall-shaped portion of the strength holding member 1f. The separation plate 11a is formed so that its length is slightly longer than the length of the through-hole penetrating the wall-like portion of the strength holding member 1f. In other words, it is formed to be slightly longer than the length of the outdoor vent 1e. A vent hole 11h is formed in the separation plate 11a at a position corresponding to the through hole in the wall-shaped portion of the strength holding member 1f. For example, the vent hole 11h is formed in an intermediate portion in the axial direction of the separation plate 11a, that is, a portion located in the vicinity of the portion where the vent plate 1p described above is provided.

  The length of the separation plate 11a, that is, the length of the separation member 11, is long enough to cover the length of the outdoor vent 1e, in other words, the through hole of the wall-shaped portion of the strength holding member 1f. It only has to be. In particular, the length is preferably such that the opening 1r formed in the inner surface plate 1a can be put into the space 1h of the door 1.

  Further, the width of the separating member 11, that is, the distance between the outer surfaces of the side plates 11 b and 11 c of the separating member 11 is substantially the same as the distance between the inner surface plate 1 a of the door 1 and the inner surface of the outer surface plate 1 b. Is formed.

  Therefore, if the separating member 11 is disposed in the communication passage 1h, the communication passage 1h can be separated into the indoor side vent port Th and the outdoor side vent port 1e, and both can communicate with each other only by the vent hole 11h.

  As shown in FIG. 2, a blocking plate 12 is provided on the indoor-side vent Th side (upward in FIG. 2) with respect to the separation plate 11 a of the separation member 11. The blocking plate 12 is a long plate-like member. The blocking plate 12 is formed so that its width is wider than the width of the vent hole 11h formed in the separation plate 11a (the width in the left-right direction in FIG. 2), and the length is also the length of the vent hole 11h. It is formed to be longer than the length (the length in the direction perpendicular to the paper surface of FIG. 2). The blocking plate 12 is swingably attached to the side plate 11b of the separating member 11. When the blocking plate 12 swings so as to approach the separation plate 11a, the lower surface thereof is in contact with the upper surface of the separation plate 11a so that the ventilation hole 11h of the separation plate 11a can be blocked. Has been.

  Therefore, if the blocking plate 12 is swung so as to approach the separation plate 11a, the indoor side vent port Th and the outdoor side vent port 1e can be hermetically separated. That is, if the blocking plate 12 is swung, the ventilation hole 11h can be opened and closed by the blocking plate 12, so that the communication between the indoor vent hole Th and the outdoor vent 1e can be blocked.

  The method of attaching the blocking plate 12 to the side plate 11b of the separating member 11 so as to be swingable is not particularly limited. For example, as shown in FIG. 2, the side plate 11b and the blocking plate 12 may be connected by a hinge.

  Moreover, in order to improve the airtightness when the ventilation hole 11h by the blocking plate 12 is closed, for example, a sheet-like or plate-like sealing material 12p may be provided on the surface of the blocking plate 12 that contacts the separation plate 11a. preferable. Specifically, it is preferable to use a softer material than the separation plate 11a and the blocking plate 12 for the sealing material 12p. By providing such a sealing material 12p, it is possible to improve the adhesion with the separation plate 11a rather than the blocking plate 12, so that the air tightness when the vent hole 11h is closed by the blocking plate 12 can be improved, and the sound insulating property is achieved. Can also be improved. Further, even if the blocking plate 12 vibrates due to an external force such as wind, the generation of noise can be prevented. The material of the sealing material 12p is not particularly limited, but when the separating member 11 and the blocking plate 12 are formed of a metal such as stainless steel, for example, the sealing material 12p can be formed of a resin such as polyvinyl chloride.

(Blocking member moving mechanism)
As shown in FIGS. 2 to 4, the communication blocking device 10 includes a blocking member moving mechanism 20 that swings the blocking plate 12. The blocking member moving mechanism 20 operates the operation unit 25 to swing the blocking plate 12 between the blocking position and the communication position. As described above, the blocking position is a position where the blocking plate 12 comes into surface contact with the separation plate 11a and closes the vent hole 11h (see FIGS. 3 (A) and 4 (A)). This is a position where the blocking plate 12 swings away from the separation plate 11a and opens the vent hole 11h (see FIGS. 3B and 4B).
Hereinafter, each part which comprises the interruption | blocking member moving mechanism 20 is demonstrated.

  As shown in FIGS. 2 to 4, a pressure receiving portion 21 and an engaging portion 22 are provided on the back surface of the blocking plate 12 (the surface opposite to the separation plate 11 a).

  The pressure receiving portion 21 is a wall-shaped portion formed on the back surface of the blocking plate 12. A tip portion of the pressure receiving portion 21 (that is, a portion away from the back surface of the blocking plate 12) has a pressure receiving surface extending along the longitudinal direction of the blocking plate 12. The pressure receiving surface is a portion where a fixing member 28 of the operation unit 25 described later comes into contact. The pressure receiving surface is formed so that the distance from the pressure receiving surface to the separation plate 11a is slightly longer than the distance from the lower end of the fixing member 28 to the separation plate 11a when the blocking plate 12 is disposed at the blocking position. The reason for this will be described later.

  As shown in FIGS. 2 to 4, an engagement portion 22 is provided on the side of the pressure receiving portion 21. The engaging portion 22 is a member formed in a substantially U shape when viewed from the front. Specifically, the engaging portion 22 is formed with a groove-like accommodation portion extending along the longitudinal direction of the blocking plate 12. The accommodating portion of the engaging portion 22 is a portion where a fixing member 28 of the operation portion 25 described later is engaged, and the engaging portion 22 is arranged so that the opening of the accommodating portion faces the pressure receiving portion 21 side. It is arranged on the side of the pressure receiving part 21. In addition, when the blocking plate 12 is disposed at the blocking position, the accommodating portion has a distance from the upper surface (the inner surface away from the back surface of the blocking plate 12) to the separation plate 11a so that the upper end of the fixing member 28 is separated from the separation plate 11a. The reason for this will be described later.

Next, the operation unit 25 will be described.
As shown in FIGS. 1 to 3, the operation unit 25 includes a case 26, and the case 26 is attached to the side plate 11 c of the separation member 11. And the case 26 of the operation part 25 is arrange | positioned so that it may be located in the opening s of the ventilation | gas_flowing plate 1p in the state attached to the side plate 11c. That is, the case 26 of the operation unit 25 is attached to the side plate 11 c so as to be exposed to the inner surface plate 1 a side of the door 1.

  As shown in FIGS. 1 to 3, the case 26 is provided with a moving plate 27. The moving plate 27 is provided to be movable along the longitudinal direction of the blocking plate 12 in a state where the case 26 is attached to the side plate 11c. The moving plate 27 is provided with a knob 27 a on the surface of the door 1 on the inner surface plate 1 a side. The knob 27a protrudes from the case 26 to the inner surface plate 1a side of the door 1, and the movable plate 27 can be moved by operating the knob 27a.

On the other hand, the moving plate 27 is provided with a support plate 29 to which the above-described fixing member 28 is attached. One end (upper end in FIG. 2) of the support plate 29 is connected to the moving plate 27, and a fixing member 28 is attached to the other end (lower end in FIG. 2).
The fixed member 28 is a cylindrical member, and one end (base end) in the axial direction is connected to the moving plate 27. Moreover, the fixing member 28 is provided so that its axial direction is substantially parallel to the separation plate 11a and orthogonal to the longitudinal direction of the separation plate 11a. The fixing member 28 has such a length that the tip is positioned closer to the side plate 11 b than the pressure receiving portion 21 and the engaging portion 22.

(Communication cutoff switching operation)
An operation for blocking communication between the indoor side vent port Th and the outdoor side vent port 1e by the blocking member moving mechanism 20 having the above structure will be described.

  First, as shown in FIGS. 3A and 4A, the blocking plate 12 is placed in the blocking position. In this state, the knob 27 a of the blocking member moving mechanism 20 is operated to move the moving plate 27 and move the fixing member 28 to the position of the pressure receiving portion 21.

  As described above, in the state where the blocking plate 12 is disposed at the blocking position, the pressure receiving unit 21 has a distance from the pressure receiving surface to the separation plate 11a slightly larger than the distance from the lower end of the fixing member 28 to the separation plate 11a. It is formed to be long. For this reason, when the fixing member 28 is arranged at the position of the pressure receiving portion 21, the pressure receiving portion 21 and the blocking plate 12 are sandwiched between the fixing member 28 and the separation plate 11a. In other words, the pressure receiving portion 21 is pressed against the separation plate 11a by the fixing member 28.

  Then, since the separation plate 11a and the blocking plate 12 are in close contact with each other, the airtightness between the outdoor vent 1e and the indoor vent Th, in other words, between the indoor and the outdoor. Airtightness can be increased. Therefore, even if the door 1 is provided with a ventilation function, the air tightness of the door 1 can be increased. Moreover, even if a force is applied to the blocking plate 12 due to wind flowing from the outdoor vent 1e or other external factors, the movement of the blocking plate 12 can be fixed by the fixing member 28, the support plate 29, and the moving plate 27. Further, it is possible to prevent the blocking plate 12 from vibrating.

  On the other hand, from the state shown in FIGS. 3A and 4A, the knob 27a of the blocking member moving mechanism 20 is operated to move the moving plate 27, and the fixing member 28 is moved toward the engaging portion 22. Let Then, since the engaging portion 22 is disposed so that the opening of the housing portion faces the pressure receiving portion 21 side, the fixing member 28 enters the housing portion from the opening. The accommodating portion is formed such that when the blocking plate 12 is disposed at the blocking position, the distance from the upper surface to the separation plate 11a is shorter than the distance from the upper end of the fixing member 28 to the separation plate 11a. . For this reason, when the fixing member 28 enters the accommodating portion, a force that pushes the engaging portion 22 upward from the fixing member 28 is applied to the engaging portion 22. In other words, when the fixing member 28 enters the housing portion, a force that lifts the blocking plate 12 is generated.

  Since the blocking plate 12 is swingably attached to the side plate 11b of the separation member 11, when the force as described above is applied, the end on the side plate 11b side is used as a fulcrum, that is, the separation plate 12 is separated. The blocking plate 12 swings away from the plate 11a. Then, since the blocking plate 12 can be moved to the communication position, the vent hole 11h can be opened. Accordingly, since the indoor side vent Th and the outdoor side vent 1e can be communicated with each other, the interior and the exterior can be communicated and the room can be ventilated (FIG. 3B). 4 (B)).

  Moreover, the moving plate 27 is provided so as to be movable along the longitudinal direction of the blocking plate 12. That is, by moving the moving plate 27, the fixed member 28 moves linearly along the longitudinal direction of the blocking plate 12, in other words, parallel to the surface of the separation plate 11a.

  On the other hand, the pressure receiving portion 21 and the engaging portion 22 are arranged side by side along the longitudinal direction of the blocking plate 12, and the opening of the accommodating portion of the engaging portion 22 faces the pressure receiving portion 21. It is arranged like this.

For this reason, if the knob 27a is moved linearly and the fixed member 28 is moved linearly together with the moving plate 27, the fixed member 28 is arranged on the pressure receiving surface of the pressure receiving portion 21 or the engagement portion 22 is moved. It is possible to enter the housing part.
That is, as the blocking member moving mechanism 20, a structure is adopted in which the knob 27 a is linearly moved and the fixing member 28 is engaged with the accommodating portion of the engaging portion 22. A simple structure can be made.

  Note that the upper surface of the accommodating portion of the engaging portion 22 is preferably tapered in the vicinity of the opening. Specifically, it is preferable that the upper surface of the housing portion is formed in the vicinity of the opening of the housing portion so as to tilt upward from the back of the housing portion toward the opening (that is, away from the separation plate 11a). . With such a shape, the swinging amount of the blocking plate 12 gradually increases while the fixing member 28 linearly moves from the holding position to the engaging position, so that the fixing member 28 is moved to the engaging position. The resistance at the time can be reduced.

Further, the pressure receiving surface of the pressure receiving portion 21 may be a flat surface parallel to the back surface of the blocking plate 12, or may be a surface having irregularities along its longitudinal direction, or a stepped shape. It may be.
If the fixing member 28 is disposed in the recessed portion, the movement of the fixing member 28 along the longitudinal direction of the pressure receiving surface of the pressure receiving portion 21 can be maintained as long as the surface has irregularities.
Further, if the pressure receiving surface of the pressure receiving portion 21 has a stepped shape, the fixed state in the state where the blocking plate 12 is sandwiched between the fixing member 28 and the separation plate 11a can be changed. In other words, the force with which the fixing member 28 presses the blocking plate 12 against the separation plate 11a via the pressure receiving portion 21 can be adjusted. Specifically, the pressure receiving surface of the pressure receiving portion 21 is formed so as to increase as the distance from the engaging portion 22 increases (the distance from the separation plate 11a increases). Then, if the fixing member 28 is moved in a direction away from the engaging portion 22, the pressing force can be increased stepwise, so that the operability when the knob 27 a is operated can be improved. .

  The position (see FIG. 4 (B)) where the fixing member 28 enters the housing portion of the engaging portion 22 and engages deeper than the tapered portion is referred to in the claims. The position where the fixing member 28 is disposed on the pressure receiving surface of the pressure receiving portion 21 (see FIG. 4A) is the holding position referred to in the claims.

  The blocking member moving mechanism 20 is not limited to the structure as described above, and various mechanisms that can exhibit the same function can be adopted. Specifically, a shaft-like member that is orthogonal to the surface of the separation plate 11a and can move along the normal direction of the surface is provided, and the separation plate 11a is swung by the shaft-like member. Also good. For example, a shaft-like member that can move along the vertical direction in FIG. 2 is provided on the inner surface of the inner surface plate 1 a of the door 1. Then, the lower end of the shaft-like member is connected to the blocking plate 12. On the other hand, the upper end of the shaft-shaped member is connected to an operation unit having a function of moving the shaft-shaped member in the vertical direction and fixing the movement. Then, the function similar to the blocking member moving mechanism 20 described above can be exhibited.

(Other embodiments)
Further, the separation member may have a structure surrounding the outdoor vent Th (in other words, the opening 1r of the inner surface plate 1a of the door 1).
For example, as shown in FIG. 7, a box-shaped separation member 40 having an opening in the indoor vent hole Th is disposed. Then, in the separating member 40, a space 40h that is separated from the outdoor vent 1e but communicated with the outdoor vent Th can be formed. Then, a through hole 41 h is formed in the upper wall 41 of the separation member 40. A communication blocking device 50 having a structure substantially similar to that of the above-described communication blocking device 10 is provided above the wall 41.

In the case of the structure as described above, the indoor side vent Th can be more reliably separated from the outdoor side vent 1e by the plurality of walls of the separating member 40, so that the heat insulating effect can be enhanced. Moreover, by providing the through hole 41h in the upper wall 41 that does not face the outdoor vent 1e, the flow path from the indoor vent Th to the outdoor vent 1e is bent. Then, since the flow path exhibits a function like an acoustic maze, sound insulation can be improved.
In particular, even if a sound insulating material as described later is provided on the inner surface of the separating member 40, the sound insulating property can be improved. In particular, if a sound absorbing material is disposed in the space 40h as the sound insulating material, the surface density in the thickness direction of the door 1 can be increased, so that the sound insulating effect can be further enhanced.

  In the above example, the through hole 41h is formed in the upper wall 41 of the separating member 40. However, the wall forming the through hole 41h is not particularly limited, and is provided at a position not facing the outdoor vent 1e. If it is a wall, the sound insulation as mentioned above can be improved.

(About the position of the indoor vent Th)
In the above example, the case where the indoor side air vent Th is formed in the lower portion of the door 1 has been described. However, the position where the indoor side air vent Th is provided is not particularly limited, but as shown in FIG. 1 and FIG. The mouth Th is preferably provided in the lower part of the door 1. In this case, since the flow path from the outdoor vent 1e to the indoor vent Th is simplified and the ventilation path can be minimized, the ventilation function can be improved. In addition, if the distance from the lower end of the door 1 to the indoor side vent Th is shortened, the central portion of the highly heat-insulating region of the door 1 can be provided widely. And since the convection of the gas inside the door 1 can be suppressed to the minimum, the fall of the heat insulation performance by having provided the communication interruption | blocking apparatus 10 can be suppressed.

(Regarding the position of the outdoor vent 1e)
In the above example, the case where the outdoor vent 1e is formed at the lower end of the door 1 has been described, but the position where the outdoor vent 1e is provided is not particularly limited. For example, you may provide in the side surface (door tip side edge part or door side edge part) of the door 1, or the upper end of the door 1. Even in this case, if the ventilation plate 1p is provided with the opening 1r provided in the inner surface plate 1a, the flow path between the outdoor vent 1e and the ventilation plate 1p can be used as the communication passage 1h. However, in consideration of heat insulation, it is most desirable to provide the outdoor vent 1e at the lower end of the door 1 and provide the indoor vent Th at the lower end of the door 1.

  Moreover, you may provide the outdoor side vent hole 1e by forming opening in the outer surface board 1b. Even in this case, if the outdoor vent 1e and the indoor vent Th are not overlapped with each other in the surface direction of the door 1, a portion located between the two in the communication passage 1h can be used as a connection channel. . Even in this case, it is desirable in terms of ventilation and heat insulation to shorten the communication passage 1h as much as possible.

(Ventilation plate 1p)
In the above example, the shape of the through hole Th formed in the ventilation plate 1p is not particularly limited, and may be a substantially rectangular through hole as shown in FIGS. 1 and 6, or a circular hole or a vertically long slit shape. It is good.

  Further, without providing the ventilation plate 1p, a through hole may be directly formed in the inner surface plate 1a to form the indoor side ventilation hole. In this case, there is an advantage that the appearance of the door 1 can be improved. On the other hand, when the ventilation plate 1p is provided, it is possible to obtain an advantage that the communication blocking device 10 can be maintained or replaced by removing the ventilation plate 1p.

  A sheet such as a nonwoven fabric may be attached to the inner surface of the ventilation plate 1p. In this case, it is possible to prevent dust or the like that has entered the communication passage 1h from the outside from entering the room.

(Sound insulation)
In order to improve sound insulation, it is preferable to provide a sound insulation material SB in the communication passage 1h. Specifically, the sound insulating material SB is disposed at a position facing the indoor side vent Th in the communication passage 1h (see FIG. 2). Then, the sound insulation performance can be covered with the sound insulation material because the sound insulation performance can be covered by the decrease in the surface density in the thickness direction of the door 1 due to the provision of the indoor vents Th and the communication passage 1h. Can be made. Therefore, the sound leaking from the room and the sound transmitted from the outside to the room can be reduced.

The sound insulating material SB provided in the communication passage 1h is not particularly limited.
For example, a sound insulating material SB can be obtained by attaching a steel plate having an appropriate thickness to the inner surface of the outer surface plate 1b.
A general sound absorbing material may be used as the sound insulating material SB. For example, if a sound absorbing material is disposed in the communication passage 1h, the surface density in the thickness direction of the door 1 can be increased in the portion where the sound absorbing material is provided. Then, a sound absorbing material (that is, a sound insulating material) is transmitted through the width direction of the door 1 from the indoor side vent Th to the outside, or from the outside along the width direction of the door 1 to the room side vent Th. SB) and can be attenuated.

  The position at which the sound insulating material SB is provided is not limited to the position shown in FIG. 2, and may be provided at a position where an appropriate sound insulating function can be exhibited (for example, a position facing the indoor vent hole Th). That's fine.

  The size and shape of the sound insulating material SB are not limited to the size and shape as shown in FIG. The sound insulating material SB is improved in sound insulating properties as the surface area and thickness thereof are increased. However, the sound insulating material SB formed in a size and shape capable of exhibiting an appropriate sound insulating function in accordance with the specification and application of the door 1 is used. Use it.

(Fireproof)
Further, when the blocking member moving mechanism 20 is configured as described above, the blocking plate 12 can also be used as a fireproof plate that isolates the outdoor vent 1e and the indoor vent Th in the event of a fire. Become.

  Specifically, the fixing member 28, the support plate 29, or the connecting member SP that fixes the support plate 29 to the moving plate 27 is formed of a material having a thermal fuse function. Then, even if a fire occurs in the ventilated state, these members melt and come off or the strength decreases, so that the blocking plate 12 cannot be held in the vented position. Then, the blocking plate 12 swings so as to be in the blocking position by gravity, so that the outdoor vent 1e and the indoor vent Th can be isolated.

  In the case of the above configuration, the fixing member 28, the support plate 29, and the support plate 29 correspond to the holding member referred to in the claims.

  Further, in the structure as described above, it is preferable that the swing of the blocking plate 12 can be fixed when the thermal fuse is melted. Then, after the blocking plate 12 is arranged at the blocking position, it is possible to prevent the blocking plate 12 from moving due to wind or the like at the time of a fire and communicating the outdoor vent 1e and the indoor vent Th.

For example, the following structure can be considered.
It is assumed that the support plate 29 is fixed to the moving plate 27 with a plurality of pins, and all the other pins have the function of a thermal fuse except for one of them. For example, the support plate 29 and the moving plate 27 are fixed by two pins, and one of the pins has a function of a thermal fuse (thermal fuse pin). The support plate 29 can be swung with respect to the other pin. Then, in the event of a fire, although the thermal fuse pin melts, the support plate 29 and the moving plate 27 are kept connected by the other pin. In addition, the support plate 29 swings toward the blocking plate 12 with the other pin as a fulcrum, and the fixing member 28 is placed on the blocking plate 12. If an engagement mechanism for engaging the support plate 29 with the case 26 or the side plate 11c is provided in such a state, the support plate 29 cannot be moved, so that the blocking plate 12 is separated from the fixing member 28. It is sandwiched between the plates 11a. Therefore, the swinging of the blocking plate 12 can be fixed. The engagement mechanism for engaging the support plate 29 with the case 26 or the side plate 11c is not particularly limited. For example, a protrusion is formed on the case 26 or the side plate 11c, and the cutting mechanism for engaging the support plate 29 in the above state is used. A mechanism for providing a notch can be mentioned. If the support plate 29 swings downward, the center axis of the other pin and the center axis of the fixing member 28 are arranged on the same plane perpendicular to the upper surface of the separation plate 11a. The movement of the support plate 29 can be fixed without providing the engagement mechanism as described above.

If the blocking plate 12 is provided so that a force that moves the blocking plate 12 to the blocking position is always applied, the blocking plate 12 is reliably swung when the connecting member SP or the like is melted. 12 can be moved to the blocking position.
For example, an urging unit that urges the blocking plate 12 to swing from the ventilation position to the blocking position may be provided. In this case, when the connecting member SP is melted, the blocking plate 12 can be reliably swung and moved to the blocking position. Moreover, it is possible to prevent the outdoor vent 1e and the indoor vent Th from communicating with each other due to the wind during a fire and the like.

  However, as shown in FIG. 2, if a force for moving the blocking plate 12 to the blocking position by gravity is applied, no special biasing means need be provided. The structure of 20 can be a simple structure.

(About the blocking plate 12)
The blocking plate 12 may be formed of a simple plate member, but may be formed in an L shape as shown in FIG. If it is formed in an L shape, the strength of the shielding plate 12 can be increased even if the thickness of the shielding plate 12 is reduced, so that the shielding plate 12 itself can be reduced in weight. Then, when arrange | positioning in the interruption | blocking position, the force required when operating the knob 27a can be made small, and operativity can be improved.

  In addition, as shown in FIG. 2, when the edge (that is, the front end side) that moves upward is bent and becomes L-shaped when the blocking plate 12 swings, the portion bent upward Can function as a load when the blocking plate 12 moves to the blocking position during a fire. Then, even if the air flow blown from the vent hole 11h is generated when the pin sp is melted, it is easy to keep the blocking plate 12 in the blocking position against the resistance.

  In the above example, the case where the blocking plate 12 swings around one end in the width direction as a fulcrum and moves between the blocking position and the communication position has been described. However, the method for changing the posture of the blocking plate 12 between the blocking position and the communication position is not particularly limited. For example, the blocking plate 12 may be swung with one end in the longitudinal direction as a fulcrum, or the blocking plate 12 moves in the normal direction of the surface of the separation plate 11a (that is, the blocking plate 12 is lifted upward as it is. You may do it.

(About separation member)
In the above example, the case where the separation member is a long member formed in a substantially U shape in a sectional view has been described, but the separation member may be formed of a simple long plate. In this case, the blocking plate 12 may be slidably connected to the inner surface plate 1a or the outer surface plate 1b by a hinge. Further, the case 26 of the operation unit 25 may be directly connected to the inner surface plate 1a or the ventilation plate 1p.

  In the description of the example of FIG. 2, only the long member formed in a substantially U shape in cross section is described as the separation member. However, the above-described strength retaining member 1f is also disposed between the indoor vent hole Th and the outdoor vent hole 1e, and has a function of separating the two. Therefore, the strength holding member 1f of FIG. 2 may function as the separation member without providing the separation member 11 of FIG.

  Moreover, you may make the separation member 11 which consists of an elongate member formed in the cross sectional view substantially U shape described in FIG. 2 function as an intensity | strength holding member. In this case, the length of the separating member 11 needs to be the distance between the inner surface of the door end side end portion of the door 1 and the inner surface of the door end side portion and the length of the separating member 11.

  That is, the separating member referred to in the claims includes not only the concept of using only the separating member 11 of FIG. 2 as the separating member, but also the concept of using the strength holding member 1f of FIG. The concept includes both the separating member 11 and the strength holding member 1f as separating members. Of course, the separating member referred to in the claims only has to have a predetermined function, and it is needless to say that the separating member is not limited to those having these structures.

  The door of the present invention is suitable for a door installed at the entrance of a residential building such as a condominium or a hotel that requires high functionality.

DESCRIPTION OF SYMBOLS 1 Door 1h Communication path 1e Outdoor vent 1p Ventilation plate 10 Communication blocker 11 Separation member 11a Separation plate 11h Vent hole 12 Blocking plate 12p Sealing material 20 Blocking member moving mechanism 22 Engagement part 22h Storage part 25 Operation part 28 Fixing member Th Indoor side vent DU Door unit

Claims (7)

A door with a ventilation function that communicates indoors and outdoors,
The door has
An indoor vent that communicates the interior of the door with the interior of the door, an outdoor vent that communicates the exterior and the interior of the door, and a communication passage that communicates between the outdoor vent and the interior vent. , Is formed,
The communication path is
Having a connecting flow path for circulating air in a direction along the surface of the door;
In the connection channel,
A communication blocking mechanism for blocking communication between the outdoor vent and the indoor vent is provided;
The communication blocking mechanism is
A separation member that separates the connection channel between the outdoor vent and the indoor vent, and has a vent that communicates between the outdoor vent and the indoor vent When,
A blocking member provided so as to be movable between a blocking position that approaches the separation member and closes the ventilation hole, and a communication position that is spaced apart from the separation member and opens the ventilation hole;
A blocking member moving mechanism for moving the blocking member between the blocking position and the communication position;
The blocking member moving mechanism is
The door characterized by including the fixing member which can hold | maintain the said interruption | blocking member arrange | positioned in the said interruption | blocking position on both sides of the said separation member. The blocking member is
A contact portion in contact with the separation member at the blocking position;
The contact portion is
The door according to claim 1, wherein the door is made of a material softer than the separating member and the blocking member. The sound insulating material is provided in the communication passage,
The sound insulating material is
3. The door according to claim 1, wherein the door is disposed at a position facing the indoor vent in the communication passage. The separating member is
Comprising a plurality of separation walls arranged so as to surround the indoor vent.
Having a space separated from the outdoor vent by the plurality of separation walls;
4. The door according to claim 1, wherein the ventilation hole is provided in a separation wall that is not opposed to the outdoor vent hole among the plurality of separation walls. The blocking member is
An engaging portion that engages with the fixing member;
The blocking member moving mechanism is
A fixing member moving means for moving the fixing member between an engaging position for engaging the engaging portion and a holding position for holding the blocking member between the separating member and the holding member; ,
The engaging portion is
5. The door according to claim 1, wherein the blocking member is formed to be moved to the communication position when the fixing member is engaged. The blocking member is
Provided to be swingable with respect to the separating member;
The fixing member moving means is
Moving the fixing member linearly from the engagement position to the holding position;
The engaging portion is
6. The door according to claim 5, wherein the swinging amount of the blocking member is gradually increased while the fixing member linearly moves from the engagement position to the holding position. The blocking member is
A force that moves the blocking member to the blocking position is always applied,
The blocking member moving mechanism is
When the blocking member is disposed at the communication position, the holding member that holds in that state is provided,
The door according to claim 1, 2, 3, 4, 5 or 6, wherein all or part of the holding member has a thermal fuse function.

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