JP2012127127A - Door device with ventilation mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability of a door device with a ventilation mechanism provided in such an opening as to partition indoor and outdoor sides of a main entrance and the like.SOLUTION: In a door device 1, a door body 2 with a predetermined door thickness, which is equipped with a pair of inner and outer face plates 5 and 6, is provided with a ventilation mechanism that comprises a ventilation passage for providing ventilation between spaces facing inner and outer surfaces of the door body 2, and switching means 14 for switching a state of the ventilation passage to either an opened or closed state and maintaining the state. The switching means 14 is linked to operation implements 17a and 17b of switching implements 17 provided on both the inside and outside of the door body 2. A state of the ventilation passage is switched to either of the opened and closed states and maintained, along with operations of the operation implements 17a and 17b. The operation implement 17b on the outside of the door body 2 can be operated only by an operation of a dedicated operation tool (key) that is provided separately from an operation member for opening/closing the door body 2, including locking devices 10 and 11, and possessed by a specific person.

Description

  The present invention relates to the technical field of a high-rise building, in particular, a door device with a ventilation mechanism provided at an entrance / exit to an outside of an apartment house or the like.

In recent years, architectural styles based on high airtightness and high heat insulation have been widely used for buildings, and high airtightness and high heat insulation are common in buildings such as apartment buildings. In this way, when the building is made to be highly airtight and highly insulated, when the ventilation fan is used in the building (in each house), the inside of the building becomes negative pressure, and the entrance door is opened outward facing the outside In such a door device, the phenomenon that the opening operation becomes heavy occurs. In particular, in a house where a ventilator that operates for 24 hours is installed, if the ventilator is further operated due to cooking, etc., the pressure inside the house is further reduced, and the differential pressure inside and outside the door is increased. In addition to this, the opening operation becomes heavier and difficult to operate, but in addition to this, under the environment where the wind pressure acts on the door body, it is impossible for a powerless operator like a child to open the door body Is also envisaged.
Therefore, as a door device with a ventilation mechanism provided with a ventilation path (ventilation hole) that ventilates the inside and outside of the door body, and switching means that switches the ventilation path to either open or close state, When opening a door body, the thing which made it possible to eliminate the differential pressure inside and outside the house by opening the air passage is proposed.

JP 2000-136679 A JP 2010-174502 A

In Patent Document 1, the air passage is formed by openings formed in the inner and outer surface plates of the door body, and is provided between the openings and is provided within the door thickness. The openings are communicated with each other by rotational displacement. The switching plate is configured as an opening / closing plate that transforms into a ventilation posture to be in a state and a blocking posture to block the communication state. The opening / closing plate is linked to the operation handle of the Gremon lock that is also used as the door body locking device, and the opening / closing plate rotates simultaneously with the unlocking of the door body in accordance with the rotation operation of the operation handle. The road is opened to ventilate the inside and outside of the door body. However, in this case, the operation handle is unlocked (rotation operation) to open the door body, and at the same time, air is vented through the air passage. For this reason, when the door body is pushed or operated by rotating the operation handle, or when the door body is opened by a series of operations for pulling, the air passage is pushed or pulled at the same time as it enters the ventilation state. Therefore, there is almost no time difference from the unlocking operation to pushing or pulling operation, and there is a case where ventilation (relative pressure difference) by the air passage is not sufficient, and in such a state, the door body is opened. Since the operation is heavy and a smooth opening operation cannot be performed, there is a problem that the opening must be performed with a time difference from the unlocking operation as appropriate, and the operability is poor. Further, in this case, not only is the opening formed in the outer side surface portion of the door body exposed to the outside, but there is also a problem that the opening and closing plate is exposed through the opening in the ventilation posture of the opening and closing plate and the design is inferior. is there.
In addition, in Patent Document 2, a notch portion in which a part of a door body is cut out is configured as a ventilation path, and a slide that slides within a door thickness to open and close the notch portion of the door body as a switching means. A plate is used, and the slide plate is held (locked) in the notch by a lock mechanism. When opening the door body, first release the locking mechanism that can also be used as the door body locking device, then manually slide the slide plate to open the notch, and then vent. The procedure of opening the door body by grasping the operation handle of the door body is a three-step operation of releasing the locking means, opening the slide plate, and opening the door body. . For this reason, it is possible to secure time to eliminate the pressure difference inside and outside before opening the door body, and the opening operation of the door body becomes light, but there is a problem that the operability is inferior because three steps of operation are required There is. Furthermore, this also has a problem that the design is impaired because the opening serving as the air passage is formed on the outer surface plate exposed to the outside of the door body.
Therefore, in a door device that is frequently opened and closed like a front door by both young and old, men and women can release the pressure difference inside and outside sufficiently, and can perform a smooth opening operation, operability, There is a strong demand to provide a door device with a ventilation mechanism that is excellent in design and also excellent in crime prevention and airtightness, and there is a problem to be solved by the present invention.

The present invention has been created in order to solve these problems in view of the above circumstances, and the invention of claim 1 is a door provided with a pair of inner and outer face plates and having a predetermined door thickness. A door device provided with a ventilation mechanism in the body comprising a ventilation path that ventilates spaces facing the inner and outer surfaces of the door body, and switching means that switches and holds the ventilation path in either an open or closed state The switching means is connected to an operation tool provided on both the inside and outside of the door body, and is configured to switch and hold the air passage in either the open or closed state in accordance with the operation of the operation tool. A door device with a ventilation mechanism, characterized in that the operation tool is provided separately from an operation member for opening and closing the door body including the locking device, and can be operated only by operating the operation tool possessed by a specific person. It is.
In the invention of claim 2, the ventilation path of the ventilation mechanism is constructed so as to extend from the lower opening opened in the lower end surface of the door body to the inner opening opened in the inner surface plate of the door body, and constitutes the switching means 2. The door device with a ventilation mechanism according to claim 1, wherein the opening / closing member is provided between the lower opening and the inner opening.
In the invention of claim 3, the lower opening of the ventilation mechanism is formed on the lower end surface in which the step portion is formed in the intermediate portion in the inner and outer direction, and the facing distance between the lower end surface and the floor side surface is set so that the outer portion of the step portion is the inner The door device with a ventilation mechanism according to claim 2, wherein the door device is secured wider than the portion.

By making it the invention of Claim 1, while being excellent in operativity and crime prevention, the opening operation of a door body can be performed smoothly and lightly.
By setting it as invention of Claim 2, an opening is not formed in the outer surface board of a door body, but it can be set as the door body excellent in the designability.
According to the invention of claim 3, the air permeability can be further improved, and the differential pressure elimination time can be shortened.

1A and 1B are a front view and a rear view of a door device with a ventilation mechanism, respectively. 2A and 2B are an XX sectional view and a YY sectional view of FIG. 1A, respectively. 3 (A), (B), (C), and (D) are a left side view, a front view, a right side view, and a bottom view, respectively, of a main part, and FIG. 3 (E) is a bottom view of the base frame. 4 (A), (B), (C), (D), and (E) are a left side view, a front view, and a right side view of the switching device, respectively, and a sectional view taken along line XX in FIG. 4 (B). FIG. It is XX sectional drawing of FIG. 3 (B). FIG. 6A is a front view of the main part for explaining the closed state of the ventilation mechanism, and FIG. 6B is a front view of the main part for explaining the opened state of the ventilation mechanism. FIG. 7A is a perspective view of the switching means, FIG. 7B is a perspective view for explaining the closed state of the switching means, and FIG. 7C is a perspective view for explaining the ventilation state of the switching means. It is a front view from the inner side of the door apparatus in 2nd embodiment. FIG. 9A is a front view of a main part for explaining the closed state of the ventilation mechanism in the third embodiment, and FIG. 9B is a main part for explaining the ventilation state of the ventilation mechanism in the third embodiment. FIG.

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
In the drawings, 1 is a door device provided at the entrance of each dwelling of the apartment house, and the door body 2 constituting the door device 1 is one side of the four-round frame 3 fixed to the opening of the housing. It is provided so as to be swingable through three hinges 4 provided in the vertical direction between a certain door bottom side frame 3a, and the opening is closed and the opening is closed. It is configured to swing open and close between the fully closed posture. The door body 2 is formed by bending the upper and lower sides of the outer plates 5 and 6 and the left and right four peripheral edges of the indoor and outdoor pair (front and back pair) as appropriate. An end surface (upper and lower left and right end surfaces) in the door thickness direction is formed, and a core material 7 is interposed between the inner and outer surface portions 5a and 6a so as to have a predetermined door thickness. . In addition, 8 is an aggregate which is built in the left and right end portions and the upper end portion of the door body 2, 6b is a summing portion which is bent on the door end side of the outer side surface portion 6a, and 5b is a door end side end of the inner side surface portion 5a. It is the door end side end surface formed by bending so as to abut against the summing part 6a from the edge.

  In addition, a handle 9 for opening / closing operation is provided on each of the outer side surfaces 5a and 6a of the door body 2, and a pair of upper and lower main and sub-locking devices are provided on the upper and lower ends of the pair of inner and outer handles 9, respectively. 10 and 11 are provided. The main and sub-locking devices 10 and 11 are each constituted by a cylinder lock, respectively, operation of thumbturns 10a and 11a provided on the indoor side, and keys (not shown) to the key holes 10b and 11b provided on the outdoor side. A dead bolt (not shown) appears and disappears by the operation, and is engaged and disengaged from a locking receiving hole 3d provided in the door-end side frame 3b, thereby being in a locked / unlocked state. Further, a latch bolt (not shown) is connected to the pair of inner and outer grips 9 so as to be able to protrude and retract with respect to the door body 2. It is configured so as to be automatically immersed and locked in a lock receiving hole 3d provided in the front frame 3b. When the door body 2 is opened, the main and auxiliary locking devices 10 and 11 are unlocked, and the handle 9 is operated (pushing and pulling) in the respective operation directions, whereby the latch bolt is moved to the door body. 2 so that the door body 2 can be opened by pushing the door body 2 in the operation direction through the handle 9 as it is. It is configured.

On the other hand, the lower end portion of the door body 2 is formed such that the core material 7 is not interposed and the inside of the door thickness is hollow. Further, as shown in FIG. 2, the lower end surface of the door body 2 is composed of an inner bent piece 5c and an outer bent piece 6c that are bent in directions close to the lower end edges of the inner and outer surface portions 5a and 6a. However, the tip edges of the inner and outer bent pieces 5c, 6c are formed to be spaced apart from each other in the horizontal direction with a predetermined gap therebetween, and the inner and outer bent pieces at four positions in the left-right direction. The lower opening 2a of the present invention is formed by cutting out 5c and 6c. Further, the outer bent piece 6c constituting the lower end surface of the door body 2 is bent at a higher position than the inner bent piece 5c, so that a stepped portion is formed on the lower end surface constituted by the inner and outer bent pieces 5c, 6c. Is formed. Thereby, the facing distance (gap) between the outer bent piece 6c and the lower frame body 3c constituting the four-frame frame 3 is ensured to be wider than the facing distance between the inner bent piece 5c and the lower frame body 3c. Is formed.
On the other hand, a rectangular inner opening 5d that is long in the left-right direction is provided at the lower end of the inner side surface portion 5a constituting the door body 2 and opposed to the hollow portion where the core material 7 is not interposed. It is formed at a position where a predetermined gap exists between the edges. The inner opening 5d is configured to be covered with a hood body 5e having an outer shape smaller than the inner opening 5d, whereby the lower end opening 2a, the inner opening 5d, and the hood body 5e are covered. The gap H (hereinafter, the gap H will be described as the inner opening 5d) communicates with each other so as to ventilate the inside and outside of the door body 2. The air flow path from the lower opening 2a to the inner opening 5d corresponds to the air passage constituting the ventilation mechanism of the present invention, and the opening for the air passage is formed on the outer surface portion 6a side facing the outside. No consideration is given so as not to impair the design of the outer surface 6a exposed to the outside. Furthermore, in the present embodiment, as described above, the facing interval (gap) between the outer bent piece 6c and the lower frame 3c is secured wider than the gap formed at the inner bent piece 5c portion, Thus, the air from the outside of the door body 2 can be easily taken in without impairing the closing property and the crime prevention property.

Reference numeral 12 denotes a reinforcing lower aggregate disposed at the lower end of the door body 2, and the lower aggregate 12 includes, as shown in FIGS. Although it is formed in a substantially U shape so as to be arranged in contact with the inner and outer bent pieces 5c and 6c which become the lower end surface of the door body 2 from the lower end portion of 6a, the bottom piece of the lower aggregate 12 is In order to conform to the shape of the bent pieces 5b and 6b, the inner and outer bottom pieces 12a and 12b and a stepped portion 12c positioned therebetween are formed. Then, among the bottom pieces of the lower aggregate 12, the outer bottom pieces 12a, 12b and the stepped portion 12c are cut out at four places in the left-right direction at the same position as the lower opening 2a. The opening 12d is formed so as to communicate with the four lower end openings 2a.
In addition, a base frame 13 is provided in a cavity that is an upper part of the lower aggregate 12 and does not accommodate the core material 7 at the lower end of the door body 2. The base frame 13 has a lateral width substantially the same as the door width direction of the door body 2, and as shown in FIGS. 2, 3 and 5, the base frame 13 is provided in contact with the inner and outer surface portions 5a and 6a. An inner ventilation opening that communicates with the inner opening 5d in the inner piece 13a along the inner surface plate 5 is formed in a rectangular tube shape having outer cylindrical portions 13a and 13bb and having a cylindrical hole penetrating in the left-right direction. 13c has been established. Further, in the lower aggregate 12, the lower piece portion 13 d facing the outer bottom pieces 12 a and 12 b is substantially in the same position as the lower opening 2 a and the lower ventilation opening 12 d of the lower aggregate 12. Lower ventilation openings 13e are cut out at four locations in the left-right direction, and are configured to communicate with the openings 2a and 12d.

Then, the switching means 14 constituting the ventilation mechanism of the present invention is accommodated in the space within the door thickness surrounded by the base frame 13, and the switching means 14 is configured as shown in FIGS. A main body case 15 provided in a mounting manner on the lower piece 13 d of the frame 13 is provided. As shown in FIGS. 4 and 5, the main body case 15 includes a pair of inner and outer parts, outer pieces 15 a and 15 b, upper and lower pieces 15 c and 15 d, left and right pieces 15 e and 15 f. It is configured so as to form a substantially rectangular parallelepiped space set narrower than the width. The lower piece 15d has lower ventilation openings 15g that are located at positions opposite to the four lower ventilation openings 13c and 12d formed in the base frame 13 and the lower aggregate 12, respectively. It is long in the left-right direction.
On the other hand, a step portion 15h is formed in the middle portion of the inner piece 15a in the vertical direction, and the upper portion of the step portion 15h is opposed to the inner opening 5d of the door body 2 while being retracted to the outer surface portion 6a side. It is configured. The inner piece 15a, which is an upper part of the stepped portion 15h, has a plurality of inner ventilation openings 15i (in this embodiment, three in the left-right direction and two in the upper-lower direction) located at the part facing the inner opening 5d. Therefore, six inner ventilation openings) are formed. In the present embodiment, the insect vent net 15j is provided in the inner ventilation opening 15i. However, the insect net 15j may be provided if necessary, and the openings 2a, 12d, 13c, 15g, etc. Alternatively, it may be provided where appropriate.
Thereby, the air inside and outside the door body 2 is, for example, when the air pressure inside the room is lowered and the outside air is introduced from the lower opening 2a, the lower opening 2a of the door body 2 and the lower aggregate 12 Then, the air flows into the main body case 15 from the lower ventilation openings 12d, 13c and 15g of the base frame 13 and the main body case 15, and passes through the inner ventilation through holes 15i and 13c of the main body case 15 and the base frame 13, respectively. It is configured to flow into the inside of the door body 2 from the inner opening 5d. In this way, the inside and outside of the door body 2 communicate with each other to be in a vented state.

  Then, at the lower end portion of the main body case 15, the ventilation is performed at a position between the lower opening 2 a and the inner opening 5 a, that is, at a position higher than the lower ventilation opening 15 g and below the inner ventilation opening 15 i. A partition body 16 corresponding to the air passage opening / closing member of the present invention for opening and closing the air passage of the road is provided. The partition 16 is formed of a long plate material having a length substantially the same as the length in the left-right direction of the main body case 15, and the plate width in the short direction is substantially the same as the distance between the lower ends of the inner and outer pieces 15a, 15b. Is set to the length of At both left and right ends of the partition 16, support shafts 16 a that are concentric with the center of the plate width and thickness protrude outward in the left-right direction. 15e and 15f are rotatably supported through. The left and right support shafts 16a are integrally fitted and fixed to the through ends protruding outward from the left and right pieces 15e and 15f, respectively. Further, the outer side pieces 15a and 15b of the main body case 15 are integrally provided with stopper pieces 16c and 16d that are long in the left-right direction and are located at the portions facing the partition body 16, respectively. The partition 16 is configured to rotate integrally with the rotating body 16b about the support shaft 16a as an axis, and in a state where the partition 16 is in an open posture standing between the inner and outer pieces 15a and 15b, The ventilation path (ventilation mechanism) from the side opening 2a to the inner opening 5d is in a vented state (communication state, open state) so as to ventilate the inside and outside of the door body 2. Further, in a state where the partition 16 is in a horizontal state and the inner and outer end edges are in the closed posture in contact with the stopper pieces 16c and 16d, the air passage (venting mechanism) extending from the lower opening 2a to the inner opening 5d is provided. The ventilation is shut off (closed state) so that the ventilation inside and outside the door body 2 is blocked. And the protrusion 16e is integrally formed in the left-right direction outer surface of one rotary body (rotary body on the right side in FIG. 4B in this embodiment) 16b.

The body case 15 is integrally formed with left and right attachment pieces 15k and 15m for attachment to the door body 2 at both left and right ends. These attachment pieces 15k and 15m are formed by extending the outer piece 15b of the main body case 15, respectively, and the attachment pieces 15k and 15m are attached to the outer edge in the left-right direction and bent toward the inside. Plates 15n and 15p are formed. A rotating body 16b with a protrusion 16e is disposed on the right mounting piece 15m side.
Further, the hood body 5 e provided with a gap H with respect to the inner opening 5 d is configured to be fixed to the inner piece 5 a above the step portion 15 h of the main body frame 15. It is formed using the same plate material, and consideration is given so that the design from the inside is not impaired.
Incidentally, the switching means 14 is inserted into the cavity within the door thickness through a through-hole previously formed in the door end side end surface 5b of the door body 2 in a state in which a member such as the partition body 16 is incorporated in advance. The mounting plates 15n and 15p provided at the left and right end portions of the main body case 15 are configured to cover the door bottom side end surface of the door body 2 and the through holes formed in the door end side end surface 5b. By being fixed to the plate body 2b applied, it is configured to be accommodated within the door thickness.

  On the other hand, at the lower end portion of the door body 2 and above the switching means 14 arrangement portion, the handle 9 which is an opening / closing member of the door body 2 and the main and auxiliary locking devices 10 and 11 are involved. A dedicated switching tool 17 is provided. As shown in FIG. 6, a general-purpose cylinder lock with a rod is used for the switching tool 17 in the present embodiment, and an operation knob 17 a (corresponding to an indoor operation tool is provided on the indoor side (inner side surface portion 5 a)). On the other hand, a key hole 17b (corresponding to an operation tool on the outdoor side) is provided on the outdoor side (outer surface portion 6a). Furthermore, the switching tool 17 is provided with a first actuating rod 17c that extends downward and moves up and down within a predetermined movement range set in advance. The first operating rod 17c is a dedicated operation tool inserted into the operation knob 17a or the keyhole 17b, and rotates a key (not shown) possessed by a specific person such as a resident of each residence. In connection with the operation, the first actuating rod 17c is configured to be displaced between a lower closed position and an upper open position. Further, a second actuating rod 17d reaching a portion close to the right mounting piece 15m of the body case 15 constituting the switching means 14 is detachably connected to the tip of the first actuating rod 17c. And move up and down integrally.

The right mounting piece 15m of the main body case 15 is provided with a fixed plate 15r that protrudes toward the inside of the room, and a lower bullet receiving portion that bends toward the left side at the lower end of the fixed plate 15r. A piece 15s is formed. As shown in FIGS. 4, 6, and 7, the fixed plate 15r is provided with an operation plate 18 that interlocks and connects the first and second operation rods 17c and 17d and the partition 16 so as to be movable in the vertical direction. .
The actuating plate 18 is configured to have a plate surface orthogonal to the right mounting piece 15m, and is laminated on an upper portion of the fixed plate 15r above the bullet receiving piece 15s. In the same movement width (movement width between the locking position and the unlocking position) as that of the two actuating rods 17c and 17d, a support piece portion 18a that is slidably supported in the vertical direction is provided. Furthermore, the operating plate 18 is bent toward the left side from the upper end of the support piece 18a, the abutting piece 18b with which the lower end of the second operating rod 17d comes into contact with the detachable contact, and the lower end of the support piece 18a. An upper bullet receiving piece 18c that is bent toward the left side from the upper portion and is opposed to the lower bullet receiving piece 15s of the fixed plate 15r from above with a predetermined gap, and the upper bullet receiving piece 18c. An operating piece 18d that extends downward from the left end edge and is slidable on the right end surface of the rotating body 16b is provided. A long hole 18e is formed in the operating piece 18d from the inner edge toward the outside, and the protrusion 16e of the rotating body 16b is loosely fitted in the long hole 18e so as to be movable in the hole length direction. Then, as the operating body 18 moves up and down with respect to the fixed plate 15r within a predetermined movement width, the protrusion 16e located in the long hole of the operating piece 18d is displaced in the hole length direction (inside and outside direction) of the long hole 18e. While being displaced between a predetermined upper side position and a lower side position, the rotating body 16b is forcibly rotated so that the partition body 16 is rotated and transformed between the open position and the closed position. Has been. Further, an energizing bullet 18f is interposed between the upper bullet receiving piece 18c and the lower bullet receiving piece 15s, and the operation plate 18 is directed upward while being guided by the guide pin 18g. By urging, the abutting piece 18b is abutted against the second operating rod 17d in a resilient manner, and the protrusion 16e is urged toward the upper position (opening posture of the partition body 16). Further, an energizing bullet 18f is interposed between the upper bullet receiving piece 18c and the lower bullet receiving piece 15s, and the operation plate 18 is directed upward while being guided by the guide pin 18g. By urging, the protrusion 16e is urged toward the upper position (opening posture of the partition 16).

Then, as shown in FIGS. 6 (A) and 7 (B), the first and second actuating rods 17c and 17d are moved to the closed position by operating the operation knob 17a or a dedicated key. Then, the actuating plate 18 is moved downward against the urging force of the urging ammunition 18f and is held at the lower position. In this state, the partition 16 of the ventilation mechanism is held in a closed position by the projection 16e being forcibly displaced to the lower position to close the ventilation path, and the ventilation mechanism is closed (blocked state). 2 It is comprised so that ventilation | gas_flowing inside and outside may be interrupted | blocked. On the other hand, as shown in FIGS. 6 (B) and 7 (C), by operating the operation knob 17a or a dedicated key, the first and second actuating rods 17c, 17d are moved upward and In this state, the operation plate 18 that has received the urging force of the urging ammunition 18f moves up following the displacement of the second operation rod 17d and is held at the upper position. In this state, the partition 16 of the ventilation mechanism is held in an open posture by forcibly displacing the protrusion 16e to the upper position, thereby opening the ventilation path. It is configured to be made. As described above, the partition 16 is configured to be switched and held between the open posture and the closed posture by the operation of the switching tool 17 (the key inserted into the operation knob 17a and the key hole 17b).
In addition, as long as the partition 16 and the switching tool 17 are the structures which hold | maintain the partition 16 in a closed attitude | position and an open attitude | position by operation of the switching tool 17 as mentioned above, what kind of connection structure may be sufficient as it. For example, the first or second actuating rods 17c and 17d on the switching tool 17 side may be directly interlocked and connected to the rotating body 16b provided in the partition body 16. Further, as the switching tool 17, any configuration such as a card-type operating tool is acceptable as long as only a resident or a specific person is allowed, such as a key operation for the operation of the external operating tool. Even it can be adopted.

And in the door apparatus 1 with a ventilation mechanism, a negative pressure is generated in the room, and a differential pressure is generated inside and outside the door body 2 (between the spaces facing the inner and outer surface portions 5a and 6a), thereby opening the door body 2. In the case where the door body 2 is opened in such a state that it is difficult to perform the operation, first, not the operation member for opening and closing the door body 2, but the operation knob 17a on the indoor side of the dedicated switching tool 17 provided at the lower end portion of the door body 2. Alternatively, by rotating the key inserted into the outdoor keyhole 17b, the partition body 16 of the switching means 14 is brought into the open posture, and the inside and outside of the door body 2 are vented so that the differential pressure is eliminated. It is configured.
As described above, the ventilation mechanism provided in the door body 2 is configured to be switched from the outside of the door body 2 to the ventilation state and the blocking state only by operating a dedicated key. It is configured so that crime prevention can be ensured. In addition, the ventilation mechanism is configured to hold the partition body 16 by switching to either an open posture or a closed posture by a one-action operation by the switching tool 17, and thereby configured to be excellent in operability. Has been. And when opening the door body 2 in which the pressure difference has arisen inside and outside, following the operation which makes a ventilation mechanism a ventilation | gas_flowing state by the switching tool 17, the unlocking of the main of the door body 2, and the sublocking apparatuses 10 and 11 is carried out. After the operation, the door body 2 is opened, so that the main and sub-locking devices 10 and 11 are moved from the door body 2 to the ventilation state until the door body 2 is opened (opening operation). A time difference for unlocking occurs, and the time difference is sufficient to ventilate the inside and outside of the door body 2, and the opening operation of the door body 2 is configured to be smooth and light.
Reference numeral 19 denotes a lower end portion of the switching means 14, which is a fireproof damper provided below the partition body 16. The fireproof damper 19 is attached to the body case 15 in accordance with a preset high temperature. The space between the inner and outer pieces 15a, 15b is closed and the air passage of the door body 2 is forcibly closed.

In the embodiment configured as described above, the ventilation mechanism of the door device 1 includes a ventilation path constituted by a lower opening 2a and an inner opening 5a opened to ventilate the inside and outside of the door body 2, and the ventilation path. And switching means 14 for holding the device in either the open state or the closed state. The switching means 14 is accommodated in a hollow portion formed within the door thickness of the door body 2, and the switching tool 17 for switching the switching means 14 has its operation part (operating tool (operation knob 17 a, key hole 17 b). ) Is provided inside and outside the door body 2, and the ventilation path can be switched between open and closed states linked to the operation of the operation portions 17a and 17b. For this reason, the operation for bringing the door body 2 into the ventilation state and the blocking state can be performed by one action, and a ventilation mechanism having excellent operability can be obtained.
Further, the key hole 17b as an operation tool provided outside the door body 2 is configured to be operated by a dedicated key operation possessed only by a specific person, so that it is switched to a person who does not hold the key. The means 14 is not operated, there is no trouble that the switching means 14 is switched by mischief, and the crime prevention property is excellent.
Furthermore, when opening the door body 2 in which a differential pressure is generated inside and outside, the switching tool 17 is operated in advance to bring the door body 2 into a vented state, and then the main and auxiliary locking devices 10 and 11 of the door body 2 are disengaged. Since the locking operation is performed, the time required for eliminating the differential pressure is secured until the door body 2 is opened (opening operation), and the ventilation mechanism is linked to the conventional operation handle. Thus, it is possible to reliably prevent such a problem that the door body is opened before the differential pressure is sufficiently eliminated, such as the door body being opened at the same time as the air conditioner enters the ventilation state.
Furthermore, in the state which locked the door body 2 by making at least one of the main of the door body 2 and the sublocking apparatuses 10 and 11 into a locked state, the switching means 14 is made into either a ventilation | gas_flowing state and the interruption | blocking state. It is possible to ventilate the inside and outside of the door body 2 without damaging the crime prevention property by setting the switching tool 17 in the unlocked posture while the door body 2 is locked. There is also an advantage that ventilation is possible.

  As described above, in the embodiment of the present invention, the pressure difference between the inside and outside of the door body 2 can be eliminated with good operability and the door body 2 can be opened easily. Inside the ventilation path which comprises a ventilation mechanism comprises the lower end surface of the door body 2, the lower side opening 2a opened in the outer side bending pieces 5c and 6c, and the inner side opening 5d opened in the lower end part of the inner surface part 5a The partition body 16, which is a ventilation path opening / closing member constituting the switching means 14, is provided between the door lower side opening 2 a and the inner side opening 5 a, so that the outer side surface exposed to the outside of the door body 2 An opening is not formed in 6a and it can be set as the door body 2 excellent in the designability.

  Further, in this case, the lower end surface of the door body 2 is formed with a stepped portion at the intermediate portion in the inner and outer direction, and the facing distance between the outer bent piece 6c serving as the outer portion of the stepped portion and the lower frame body 3c serving as the floor side surface. However, since the distance between the inner bent piece 5c and the lower frame 3c is larger than the facing distance, air from the outside of the door body 2 can be easily taken into the interior, and ventilation by the ventilation mechanism is further promoted, and the differential pressure is eliminated. Can be further shortened.

Of course, the present invention is not limited to the above-described embodiment, and may be the second embodiment shown in FIG.
In the second embodiment, the door body 20 with a ventilation mechanism is constituted by a pair of inner and outer surfaces, outer surface plates 21 and 22, and a ventilation path is constituted by a lower opening (not shown) and an inner opening 21a. A switching means 23 is provided between the lower opening and the inner opening 21a, and a partition (not shown) of the switching means 23 is used to open and close the door body 20. The basic configuration is the same as that of the first embodiment, such as operation by a dedicated switching tool 24 provided separately, so that the same effects as those of the first embodiment can be obtained. It is configured. And in this thing, the some through-hole 21c is opened in the food | hood body 21b which blocks | closes with the predetermined clearance gap H around the inner side opening 21a. Thereby, in the ventilation mechanism of the second embodiment, the air flow rate on the inner opening 21a side can be increased, the ventilation inside and outside the door body 20 is further promoted, and the differential pressure elimination time can be further shortened. .

Furthermore, the third embodiment shown in FIG. 9 can be used.
In the third embodiment, in the switching means 25 constituting the ventilation mechanism, as shown in FIG. 9A, the operating plate 25a receives the urging force of the urging ammunition 25b and is positioned at the upper position. In FIG. 9, the partition 25c is in the closed position to close the air passage, and as shown in FIG. 9B, the operating plate 25c is moved to the lower position against the urging force of the urging ammunition 25b. In the positioned state, the partition body 25c is configured to be in an open posture to open the air passage. The first and second actuating rods 26a and 26b that are displaced up and down in accordance with the switching operation of the switching tool 26 are connected to the actuating plate 25a configured as described above, and the actuating plate 25a is displaced up and down, thereby separating the partition. The body 25c is transformed into a closed posture and an open posture. In such a configuration, the partition body 25c is in the closed position in a state of receiving the urging force of the urging ammunition 25b, so that the partition body 25c is in contact with a stopper piece (not shown) in a resilient manner. There is an advantage that a simple interruption is made.

  INDUSTRIAL APPLICATION This invention can be utilized as a door apparatus provided in the entrance / exit part to the exterior of a building, especially a highly airtight and highly heat-insulated building.

DESCRIPTION OF SYMBOLS 1 Door apparatus 2 Door body 2a Lower side opening 3 Quadruple frame 3c Lower frame body 5 Inner surface plate 5a Inner side surface part 5c Inner bending piece 5d Inner opening 5e Hood body 6 Outer surface plate 10 Main locking device 13 Base frame 14 Switching means 15 Main body case 16 Partition body 16b Rotating body 16e Projection 17 Switching tool 17a Operation knob 17b Key hole 18 Actuation plate 18d Actuation piece 19 Fireproof damper

Claims (3)

  A door body having a pair of inner and outer face plates, having a predetermined door thickness, and a ventilation path for ventilating the spaces facing the inner and outer surfaces of the door body, and switching the ventilation path to either open or closed state In the door device provided with the ventilation mechanism constituted by the switching means to be connected, the switching means is linked to an operation tool provided on both the inside and outside of the door body, and the ventilation path is opened or closed in accordance with the operation of these operation tools. In addition to being configured to hold and switch to the state, the operation tool outside the door body is provided separately from the operation member for opening and closing the door body including the locking device, and can be operated only by operating the operation tool possessed by a specific person A door device with a ventilation mechanism, characterized by having a simple structure.   The ventilation path of the ventilation mechanism is configured to extend from the lower opening opened at the lower end surface of the door body to the inner opening established at the inner surface plate of the door body, and the ventilation path opening / closing member constituting the switching means is opened at the lower opening The door device with a ventilation mechanism according to claim 1, wherein the door device is provided between the inner opening and the inner opening.   The lower opening of the ventilation mechanism is formed on the lower end surface where the step portion is formed in the middle portion in the inner and outer direction, and the facing distance between the lower end surface and the floor side surface is secured at the outer portion of the step portion wider than the inner portion. The door device with a ventilation mechanism according to claim 2.

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