JP2014062375A - Door device with ventilation mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dust and insects from intruding into a room together with air flowing into the room to make a pressure inside the room positive, in a door device provided with a partition body 17 opened/closed by unlocking operation of a locking device 11 before handle operation for opening the door body in an air flow passage formed between a lower opening 2a which is formed at the lower end of a door body 2 and through which ambient air flows inward and an inner surface plate opening 5b formed in an inside surface of the door body so as to communicate therewith.SOLUTION: A filter 22 is provided on the side of a lower opening 2a which is positioned on an outdoor side rather than a partition body 17, air purification is performed on the outdoor side rather than the partition body 17, and dust is prevented from attaching to a movable object such as the partition body 17, thus preventing a movable body from being stuck with dust or the like and smooth movement thereof from being hindered.

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. Although it becomes larger and the opening operation becomes heavier and difficult to operate, in addition to this, in an environment where wind pressure acts on the door body, the door body can not be opened for powerless operators such as elderly people and children It is also assumed that
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 the ventilation path an open state and was able to eliminate the differential pressure | voltage inside and outside a residence is proposed (refer patent document 1).
By the way, the thing of the said patent document 1 is comprised in the door thickness located between the said opening, while comprising a ventilation path by the opening opened in the inner-outer surface board of a door body, and opening is mutually displaced. An opening / closing plate that transforms into a venting posture for communicating and a blocking posture for interrupting the communicating state is configured as a switching means. 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 still 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 the opening is opened in the outer side surface portion of the door body exposed to the outside, but the opening / closing plate is visually recognized through the opening in the ventilation posture of the opening / closing plate, so that the design is inferior. There is also a problem.
Therefore, the door device is provided with a pair of inner and outer face plates, a door body having a predetermined door thickness, an air passage that ventilates the spaces facing the inner and outer surfaces of the door body, and the air passage is either opened or closed And a switching mechanism for switching and holding in the above state, and the switching mechanism of the ventilation mechanism is provided separately from the operation tool for opening and closing the door body, from the outside of the door body It is connected to a locking device that is locked and unlocked by a key, and the air passage is closed with the locking operation of the locking device, and the air passage is switched to an open state with the unlocking operation of the locking device. However, a solution to the problem of Patent Document 1 has been proposed (see Patent Document 2).
By the way, the thing of the said patent document 2 opens each in the lower end edge part and indoor side surface of a door body, vents these openings with the indoor side surface board of a door body, and this air passage is key-locked from the outdoor side. A partition body that opens and closes in conjunction with the unlocking operation of the locking device is provided, so that when the door body is viewed from the outdoor side, the ventilation opening is made invisible so that the ventilation opening is not directly visible. However, since this is not provided with a filter, there is a problem that insects and dust enter from outside.
Therefore, a door device provided with a ventilation mechanism is provided with a filter so as to prevent insects and dust from entering (see Patent Document 3).

JP 2000-136679 A JP 2012-127128 A Special table 2009-523202

  However, when a filter is provided as in Patent Document 3, the filter is provided on the indoor side surface of the door device. Therefore, as in Patent Document 3, the partition body is arranged outside the filter in the middle of the air passage. In this case, the outside air entering the room to eliminate the negative pressure comes into contact with the movable part such as the partition before it is purified by the filter, so that the movable part gradually moves to collect dust. There is a problem that the smooth operation of the part is hindered, and here 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 directed to a door body having an inner and outer surface plate and having a predetermined door thickness. And an air flow passage formed so that the outdoor air inlet and the indoor air outlet are offset from each other so as not to face each other in the thickness direction of the door, and the inlet and the outlet are sandwiched between inner and outer plates. In the door device which is configured to communicate and connect so that air can flow in from the outdoor side toward the indoor side, and the air passage has a partition body for freely opening and closing the air passage, the air passage partition A door device with a ventilation mechanism, characterized in that a filter is arranged in a filter arrangement space formed in an outdoor part of the body.
According to a second aspect of the present invention, the filter is constructed so that it can be inserted into and removed from the filter installation space through an openable and closable opening formed on the inner surface plate side. Device.
According to a third aspect of the present invention, the air inlet is an outdoor opening provided on the bottom surface of the door body and communicates with the outside of the door, and the air outlet is an indoor opening provided on the inner face plate side of the door body and communicates with the room. The ventilation passage is formed in the door body so as to communicate with both the openings in the vertical direction, and a partition body is provided in the middle. The filter installation space is close to the lower outdoor opening with respect to the partition body. The door device with a ventilation mechanism according to claim 1 or 2, wherein the door device is provided in the door.
According to a fourth aspect of the present invention, in the door device with a ventilation mechanism according to any one of the first to third aspects, the long plate-like filter is horizontally arranged on the left and right.
The invention according to claim 5 is characterized in that the filter disposition space is formed on the upper side of the door body lower frame member on the lower side of the base frame in which the partition body is accommodated and the air passage is formed. It is a door apparatus with the ventilation mechanism in any one of Claims 1 thru | or 4.
The invention according to claim 6 is characterized in that the opening is closed through a detachable closing plate in a state where the filter is incorporated in the filter installation space. This is a door device with a ventilation mechanism.

By setting the partition body in the open posture, the air flowing from the outside can be brought into the positive pressure by taking the air from the outside into the negative pressure room. Since it is purified by a filter arranged on the outdoor side of the partition body, dust or the like accumulated on the filter adheres to the partition body, which is a movable object, as in the case where the filter is provided on the indoor side, and the partition body moves smoothly. In addition, the filter itself is sandwiched between the inner and outer surface plates and arranged so that it cannot be directly seen, so that the dirty filter is not exposed and the appearance is not impaired.
By setting it as invention of Claim 2, the filter can perform the maintenance work from the indoor side which does not impair crime prevention property.
According to the invention of claim 3, since the filter is incorporated in a state facing the outdoor opening on the bottom surface of the door body, the dust adhering to the filter falls toward the lower outdoor opening. It is possible to avoid getting into the room and getting dirty.
According to the invention of claim 4, the filter can secure a wide filter surface by utilizing the thickness of the door body, so that quick air inflow can be performed.
By setting it as invention of Claim 5, securing of filter arrangement | positioning space becomes easy.
According to the sixth aspect of the present invention, the opening for inserting and removing the filter is blocked, the appearance is not impaired, and the blocking plate is removed while leaving the filter in the filter installation space. Therefore, the filter can be inspected, so that the dust inside the filter is not dropped and the indoor side is not soiled by pulling out the filter during the inspection.

(A) is a front view of a door body, (B) is a rear view of a door body. (A) is a partially omitted sectional view taken along the line XX of FIG. 1 (A), and (B) is a partially omitted sectional view taken along the line YY of FIG. 1 (A). (A) is a left side view of the lower part of the door body, (B) is a partially omitted front view of the lower part of the door body, (C) is a right side view of the lower part of the door body, and (D) is a bottom view of the door body. (A) is a front view of the lower frame material, (B) is a partially omitted enlarged front view of the lower frame material, (C) is a partially omitted enlarged plan view of the lower frame material, and (D) is one of the lower frame materials. It is a part abbreviation enlarged bottom view. (A) is a perspective view of a filter, (B) is an enlarged side view of a filter. (A) is a partially omitted front view of the base frame, (B) is a left side view of the base frame, (C) is a partially omitted plan view of the base frame, (D) is a partially omitted bottom view of the base frame, (E) is XX sectional drawing of FIG. 6 (A). (A) is a perspective view of the base frame, (B) is an enlarged cross-sectional view of a base part of the base frame, and (C) is a vertical cross-sectional view of the base frame. It is an enlarged vertical sectional view of a base frame. (A) is principal part expansion explanatory drawing which shows a locking state, (B) is a principal part expansion explanatory drawing which shows an unlocking state.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a door device provided at the entrance of an apartment house, and a door body 2 constituting the door device 1 is a door bottom which is one side portion of a four-round frame 3 fixed to an opening of a housing. It is swingably provided through three hinges 4 provided in the vertical direction between the side frame 3a and fully opened to open the opening in an open manner and fully closed to close the opening. It is configured to swing open and close. The door body 2 has an end surface (upper and lower left and right end surfaces) in the door thickness direction by appropriately 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). The core material 7 is formed between the inner and outer surface plates 5 and 6 so as to have a predetermined door thickness. In addition, 8 is an aggregate (frame material) built in the left and right end portions and the upper end portion of the door body 2.

  The door body 2 is provided with a handle 9 corresponding to an operation tool for opening / closing operation, and a pair of upper and lower first and second upper and lower ends of the pair of inner and outer handles 9 are respectively provided. Locking devices 10 and 11 are provided. Each of the first and second locking devices 10 and 11 is composed of a cylinder lock. Each of the first and second locking devices 10 and 11 is configured to rotate the thumbturns 10a and 11a provided on the indoor side, or to the key holes 10b and 11b provided on the outdoor side. The dead bolts 10c and 11c are moved in and out by a turning operation by inserting a door bolt (not shown), and are engaged with and disengaged from a dead bolt receiver (not shown) provided on the door end side frame body 3b. The door is configured to change into a locked posture and an unlocked posture in which the door body 2 is allowed to open. Further, the latch bolt 9a provided to be connected to the pair of inner and outer grips 9 is connected to the door body 2 so as to be able to protrude and retract, and the door-end side frame body with the door body 2 being in the fully closed position. It is configured to be automatically immersed and locked (locked) in a latch bolt receiver (not shown) provided in 3b. When the door body 2 is opened, both the first and second locking devices 10 and 11 are brought into the unlocked state, and the handle 9 is operated (pressed and pulled), whereby the latch bolt 9a is The door body 2 is immersed and unlocked (unlocked), and the door body 2 is pushed to the outdoor side via the handle 9 so that the door body 2 can be opened.

  On the other hand, the lower end portion of the door body 2 is formed so as to be hollow without interposing the core material 7. Further, as shown in FIG. 8, the lower end surface of the door body 2 has an inner bent piece 5a and an outer bent piece 6a, which are bent from the lower end edges of the inner and outer surface plates 5 and 6, respectively, in opposite directions. Although the outer bent pieces 5a and 6a are partially cut out, a plurality of (four in the present embodiment) lower openings 2a are provided at intervals in the left-right direction. Is formed. Further, in this case, the outer bent piece 6a has a higher stepped shape than the inner bent piece 5a, thereby forming the outer bent piece 6a and the quadrilateral frame 3 as shown in FIG. The facing interval (gap) with the lower frame body (cracking) 3c is configured to be wider than the facing interval between the inner bent piece 5a and the lower frame body 3c.

  On the other hand, a lower frame member 12 having a generally square shape is provided at the lower end portion of the door body 2 so as to be in contact with the inner surfaces of the inner and outer surface plates 5 and 6 and the upper surfaces of the inner and outer bent pieces 5a and 6a. However, the bottom plate 12a of the lower frame member 12 is formed with a lower frame member opening 12b corresponding to the lower opening 2a. In the present embodiment, the lower opening 2a and the lower frame member opening are formed. An outdoor side opening is formed by 12b. Further, the lower frame member 12 is substantially the same as the outer surface plates 12c and 12d in positions different from the positions where the lower frame member openings 12b are formed (positions where the plate material of the bottom surface plate 12a is present in a cross-linked manner). It is reinforced in a bridging manner by a cross-shaped reinforcing material 13, and this upper surface is set to be a mounting surface of a filter 22 described later. Further, the upper end portion of the inner surface plate 12c of the lower frame member 12 is notched with the left and right end portions 12e left, is lower than the outer surface plate 12d, and becomes an upper end edge 12f that is substantially flush with the upper surface of the reinforcing member 13. However, a locking piece 12g which is lower than the left and right end portions 12e but is taller than the upper end edge 12f is formed at the intermediate portion in the left and right direction of the upper end edge 12f (see FIG. 4).

14 is a base frame interposed between the lower lower frame member 12 and the upper core member 7 (see FIG. 8). The base frame 14 is substantially the same as the door width direction of the door body 2. It is formed in the shape of a rectangular tube with a cylindrical hole that includes outer pieces 14a and 14b, and has a through hole in the left and right direction. However, the inner piece portion 14a is formed with a concave surface portion 14c recessed in a stepped shape toward the outer piece portion 14b, and an inner ventilation opening 14d communicating with the inner surface plate opening 5b is formed in the concave surface portion 14c. Further, a cover plate 14f having an opening 14e communicating with the inner ventilation opening 14d is provided on the indoor side surface of the concave surface portion 14c. The cover plate 14f has a gap on the indoor side, and the inner plate 5 In a state of being flush, it is smaller than the inner plate opening 5b and larger than the cover plate opening 14e. Constant and hood plate 14g is provided.
The lower piece 14h of the base frame 14 is in contact with the upper end edges of the outer frame plates 12c and 12d in the lower frame material. The lower piece 14h has a lower opening 2a and a lower opening 14a. A base frame opening 14i is notched so as to be substantially in the same position as the frame material opening 12b, and is configured to communicate with the openings 2a and 12b.

  Further, the switching means 15 constituting the ventilation mechanism is accommodated in the space within the door thickness surrounded by the base frame 14, and the switching means 15 is provided in the base frame 14 as shown in FIGS. The main body case 16 includes inner and outer pieces 16a and 16b, an upper piece 16c, left and right pieces 16d and 16e, and a bottom surface having an opening 16f. .

In the main body case inner piece 16a, an inner surface opening 16g is formed so as to face the inner surface plate opening 5b. In the present embodiment, three in the left-right direction are arranged in two rows in the up-down direction. In this embodiment, the inner opening 16g, the inner ventilation opening 14d, the cover plate opening 14e, and the inner plate opening 5b constitute the indoor opening of the present invention. In this configuration, the indoor side opening and the outdoor side opening are formed so as to be located at biased positions that do not face each other in the door thickness direction. Of course, the present invention is not limited to the embodiment, and as the deviation of the indoor side opening and the outdoor side opening that do not oppose each other in the door thickness direction, the door body vertical direction, left-right direction, inclination direction, etc. An appropriate arrangement can be made, and an air passage is formed between the inner and outer surface plates 5 and 6 so as to allow the openings to communicate with each other.
That is, in the present embodiment, the air inside and outside the door body 2 is, for example, when the air pressure inside the room decreases and the outside air flows into the room, the door body lower opening 2a, the lower frame member opening 12b, What flows into the main body case 16 through the base frame opening 14i and the main body case bottom surface opening 16f passes through the main body case inner surface opening 16g, the inner ventilation opening 14d, and the cover plate opening 14e, and the hood plate 14g and the inner surface plate. It is configured to flow into the inside of the door body 2 through the gap of the opening 5b. Thus, an air flow path that communicates the inside and outside of the door body 2 is formed, so that ventilation can be performed. ing.

Further, the inner piece 16a of the main body case 16 has a stepped width toward the indoor side at the lower position of the base frame concave surface portion 14c, and an air passage for opening and closing the air passage of the air passage to the wide portion 16h. A partition body 17 corresponding to the opening / closing member is internally provided. The partition body 17 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 16, and the plate width in the short direction is slightly smaller than between the opposing ends of the inner and outer pieces 16 a and 16 b. It is set to a small length. As shown in FIGS. 6 and 9, at the left and right ends of the partition member 17, a support shaft 17 a concentric with the center of the plate width and thickness protrudes outward in the left-right direction. However, the left and right pieces 16d and 16e of the main body case 16 are rotatably supported. And the axial core part of the rotary body 17b is integrally fixed to the penetration outer end part of the spindle 17a, respectively. Furthermore, the outer side pieces 16a and 16b of the main body case 16 are integrally provided with stopper pieces 17c and 17d that are long in the left-right direction and are located at portions facing the partition body 17, respectively. The partition body 17 is configured to rotate integrally with the rotating body 17b about the support shaft 17a as an axis, and in a state where the partition body 17 is in an open posture standing between the inner and outer pieces 16a and 16b. The air passage (venting mechanism) from the side opening 2a to the inner surface plate opening 5b is in a venting state (communication state, open state) so as to vent the inside and outside of the door body 2. Further, in a state where the partition body 17 is in a horizontal state and the inner and outer end edge portions are in the closed posture in contact with the stopper pieces 17c and 17d, the air passage (ventilation mechanism) from the lower opening 2a to the inner surface plate opening 5b. The ventilation of the inside and outside of the door body 2 is blocked by setting the ventilation of the door to a blocked state (closed state). And the protrusion 17e is integrally formed in the left-right direction outer surface of one rotary body 17b.
An airtight material 17f made of a rubber elastic material is provided on the surface of the stopper pieces 17c, 17d on which the partitioning body 17 abuts, so that high airtightness can be maintained when the shut-off state is achieved. ing.

  On the other hand, among the first and second locking devices 10 and 11 of the door body 2, the first locking rod 11 d extending downward is movable in the vertical direction in the second locking device 11 provided on the lower side. Is provided. Then, the first actuating rod 11d is moved down to the lower locking position in conjunction with the locking position by the turning operation of the key inserted in the thumb turn 11a or the key hole 11b, and the unlocking position In conjunction with the above, it is configured to move upward to the upper unlocking position. Further, a magnet 11g is provided at the lower end of the first actuating rod 11d, and a magnetic material 11h provided at the upper end of the second actuating rod 11e is magnetically attached to the magnet 11g so as to be detachable, together with the first actuating rod 11d. It is configured to move up and down integrally. Reference numeral 11f denotes a guide body for moving and guiding the vertical movement of the second operating rod 11e.

  Further, a fixing plate 16k that protrudes toward the inside of the room is provided on the right mounting piece 16j of the main body case 16, and the fixing plate 16k includes an upper first bullet receiving piece 18 and a lower first fixing piece 16k. The two-armor receiving piece 19 is provided so as to be movable in the vertical direction through the long holes 18a and 19a, respectively, but the upper end bent piece 18b of the first ammunition receiving piece 18 is provided with the second operating rod 11e. The lower end is in contact with the detachable contact. Between the lower end bent piece 18c of the first bullet receiving piece 18 and the upper bent piece 19b of the second bullet receiving piece 19, a first bullet 20 is interposed, and the second bullet receiving piece 19 The second bullet 21 is interposed between the lower end bent piece 19c and the lower end bent piece 16l of the fixed plate 16k. The setting is larger than the power. Further, the second elastic machine receiving piece upper end bent piece 19b and the projection 17e are connected via a connecting piece 19e.

Then, in the state where the second operating rod 11e is moved downward as the locking posture by the turning operation of the thumb turn 11a or the key inserted into the key hole 11b, as shown in FIG. When the second ammunition pieces 18 and 19 and the first ammunition device 20 having a large urging force are moved down without being compressed, and the second ammunition device 21 having a smaller urging force is compressed accordingly, the second bullet The machine receiving piece upper end bent piece 19b, the connecting piece 19e, and the projection 17e are moved downward, and the partition body 17 is rotated about the support shaft 17a while receiving the urging force of the second elastic machine 21. The closed position is assumed. On the other hand, in the state where the second operating rod 11e is moved upward as the unlocking posture, the second bullet machine 21 receives the restoring force and extends, and accordingly, as shown in FIG. The second bullet receiving pieces 18, 19 and the first bullet 20 are moved upward, and the projection 17e is further moved upward so that the partition body 17 is in the open posture.
In these normal states, the first ammunition machine 20 having a large urging force simply moves up and down without expanding and contracting.
Then, when an abnormality occurs in which the partition body 17 or the like is locked for some reason and the second bullet receiving piece 19 side is locked so that it does not move up and down, the rotation of the key inserted in the thumb turn 11a or the key hole 11b When the operation is performed, the first ammunition 20 is expanded and contracted, and the first ammunition receiving piece 18 is moved up and down so that the second locking device 11 can be locked and unlocked.
In addition, when an abnormality occurs such that the first ammunition 20 or the first ammunition receiving piece 18 is in a locked state in which the first ammunition receiving piece 18 does not move up, the thumb turn 11a or the key inserted in the key hole 11b is rotated. The second actuating rod 11e is separated from the upper end bent piece 18b of the first ammunition receiving piece so that the second locking device 11 can be locked and unlocked.
Still further, when there is a defect in the guide of the second actuating rod 11e by the guide body 11f and the second actuating rod 11e is locked and cannot move up, the magnet 11g becomes the magnetic material 11h on the second actuating rod 11e side. Thus, the second locking device 11 can be locked and unlocked.

Reference numeral 22 denotes a filter in which the present invention is implemented. The filter 22 is formed of a long plate-like object that is long in the left-right direction, and the upper surface of the reinforcing member 13 for reinforcing the lower frame member 12. It is supposed to be placed on. In other words, the filter 22 is arranged between the lower opening 2a and the base frame opening 14i, so that the outside of the air flow path when the outside air enters the negative pressure room than the partition body 17 (on the flow path). It is arranged on the flow side). The filter 22 has a space S formed by the upper end edge of the reinforcing member 13 being lower than the upper end edges of the left and right end portions of the lower frame member inner surface plate 12c and the upper end edge of the lower frame member outer surface plate 12d. It is housed in a horizontal position.
Thus, the filter 22 has a gap between the upper end edge 12f which is lower than the left and right end portions 12e of the lower frame member inner surface plate 12c and the lower end edge of the base frame inner piece portion 14a, and a notch 5c formed in the inner surface plate 5. It becomes an opening on the indoor side so that it can be freely inserted into and removed from the space S through the opening, and the incorporated filter 22 is provided on the left and right ends 12e and the upper edge 12f of the inner surface plate. The stopper 12g is used for retaining the stopper. The inner surface plate notch 5e is configured to be closed by a detachable closing plate 23. Reference numeral 22a denotes a knob gripped by a finger when the filter 22 is taken out, and reference numeral 24 denotes a fireproof damper which is melted by the heat of a fire to close the air flow path.
Although the filter 22 is a separate member from the closing plate 23 in the present embodiment, the filter 22 is not limited to this, and is integrated with the closing plate 23 and connected to the removal of the closing plate 23 from the space S. You may comprise so that it can extract.

  In the present embodiment configured as described, an air flow path is formed in the door body 2 from the lower opening 2a to the inner plate opening 5b, and the second locking device 11 is locked. In some cases, the partition body 17 provided in the air flow path is in a closed posture and can maintain airtightness, while the partition body 17 is in an open posture as the second locking device 11 is unlocked. Thus, the inside and outside of the door can be ventilated, and thereby the inside of the room that has been in a negative pressure state can be brought into a positive pressure state, and the door 9 can be moved outward by pushing and pulling the handle 9 after the unlocking operation. Since the opening operation is performed, the opening operation of the door body 2 in a state where there is a time difference after the ventilation state is performed, and the door body can be opened easily with the negative pressure eliminated. become.

  As described above, the embodiment of the present invention can perform a light opening operation of the door body 2, but a filter 22 can be provided in the air flow path to prevent entry of dust, insects, etc. Since the filter 22 is provided on the outdoor side of the partition body 17, when air flows into the negative pressure room, the air purified by the filter 22 flows into the room through the partition body 17. As a result, it is possible to prevent the movable object such as the partition body 17 from being exposed to and attached to dust or the like contained in the outside air, and the operation becoming dulled early.

In this case, the filter 22 is disposed in a tunnel-shaped space S formed in a space sandwiched between the inner and outer surface plates 5 and 6 and is in a position where it cannot be directly seen from the inside and outside, so that the dirty filter 22 is exposed and has an appearance. There will be no damage.
In addition, as a result of the filter 22 being disposed on the lower opening 2a side, which is the lower side with respect to the partition body 17, dust or the like adhering to the filter 22 falls toward the lower opening 2a side, that is, the outdoor side. Therefore, it is possible to avoid getting dirty inside the room.

  In addition, since the long plate-like filter 22 is horizontally arranged on the left and right, a wide area filter surface can be secured by utilizing the door thickness of the door body 2. For this reason, although the filter 22 is provided, it can be reduced that the filter 22 becomes a resistance and obstructs the inflow of air, so that the air can be promptly introduced into the negative pressure room.

Further, the filter 22 is disposed in a space S formed at the upper end portion of the door lower frame member 12 on the lower side of the base frame 14 in which the partition body 17 is accommodated and an air flow path is formed. It is easy to secure an installation space for the filter 22 arranged in the horizontal posture.
Moreover, since the filter 22 can be incorporated into the space S through the opening formed on the inner surface plate 5 side so as to be freely inserted and removed, maintenance work from the indoor side can be easily performed without impairing crime prevention.
The opening on the inner surface plate side for inserting and removing the filter 22 is normally closed by the closing plate 23, so that the appearance is not impaired.
In addition, in this case, by looking through the opening with the closing plate 23 removed, the degree of contamination of the filter 22 can be visually recognized without removing the filter 22 to the indoor side. As described above, it is possible to prevent the adhering dust or the like from falling and contaminating the room.

  INDUSTRIAL APPLICATION This invention can be utilized for the door apparatus with a ventilation mechanism provided in the entrance / exit part to the exterior of a high-rise building, especially an apartment house.

DESCRIPTION OF SYMBOLS 1 Door apparatus 2 Door body 2a Lower opening 5 Inner surface plate 5b Inner surface plate opening 9 Handle 11 Second locking device 12 Lower frame material 12b Lower frame material opening 17 Partition body 22 Filter

Claims (6)

  A door body having an inner and outer surface plate and having a predetermined door thickness is provided with an outdoor air inlet and an indoor outlet at positions that are biased so as not to face each other in the door thickness direction. In order to divide and connect the air passage to the air passage so that the air passage can be freely opened and closed. A door device with a ventilation mechanism, characterized in that a filter is disposed in a filter arrangement space formed in an outdoor portion of the ventilation path partition body.   2. The door device with a ventilation mechanism according to claim 1, wherein the filter is constructed so as to be freely inserted into and removed from a filter installation space from an openable and closable opening formed on the inner surface plate side.   The air inlet is an outdoor opening provided on the bottom surface of the door body and communicates with the outside of the door, and the air outlet is an indoor opening provided on the door body inner plate side and communicates with the room. It is formed in the door body in the vertical direction so as to communicate with the opening, and a partition body is provided in the middle, and the filter installation space is provided near the lower outdoor opening with respect to the partition body. The door device with a ventilation mechanism according to claim 1 or 2.   The door device with a ventilation mechanism according to any one of claims 1 to 3, wherein the filters are horizontally long plate-like ones.   5. The filter disposing space is formed at a lower end of a door body lower frame member on a lower side of a base frame in which a partition body is accommodated and an air passage is formed. A door device with a ventilation mechanism according to claim 1.   The door device with a ventilation mechanism according to any one of claims 2 to 5, wherein the opening is closed through a detachable closing plate in a state where the filter is incorporated in the filter installation space. .

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