JP6997026B2 - Door and panel opening / closing operation device with opening / closing opening for decompression - Google Patents

Description

The present invention relates to a door having a decompression opening that can be opened and closed, which is suitable for a fireproof door or the like.

The fire protection door is a normally open type that is normally open and closes the door opening (passage opening) when a fire breaks out, and a normally closed type that is in a position where the door opening is normally closed and the door can be opened to evacuate when a fire breaks out. There is.

When the fire protection door is to be closed or opened at the time of a fire, the movement of the fire protection door may be hindered by the air pressure applied to the fire protection door, and various measures have been taken to solve this problem. For example, Patent Document 1 discloses a normally closed fire protection door having a decompression opening that can be opened and closed. By opening the decompression opening, the fire protection door eliminates the pressure difference generated on the front side surface and the back side surface of the door and hindering the opening operation.

More specifically, the normally closed fire door disclosed in Patent Document 1 is a door body (term in Patent Document 1) that can be pivotally moved around a pivot line extending vertically along one side edge. Then, the "fire door 5") and the decompression opening (opening 6) recessed in the vertical center portion of the other side edge of the door body so as to extend from the other side edge toward the one side edge. ), And a decompression panel (movable body 10) provided so as to close the decompression opening and capable of pivoting around the pivot line extending in parallel with the pivot line. When the door opening (passage 3) is closed, the decompression panel latch bolt (latch 13) provided on the decompression panel is fitted into the latch hole provided on the door body to fit the decompression panel. Is held in the closed state, and the door body latch bolt (latch 12) also provided on the decompression panel is fitted into the latch hole provided on the door opening side edge to close the door body. It is designed to be held in. When a fire breaks out, by turning the handle (doorknob 8) provided on the depressurizing panel, both the latch bolt for the door body and the latch bolt for the depressurizing panel are pulled out from the corresponding latch holes. In that state, the decompression panel is opened by the pressure difference applied to the front and back surfaces thereof, the same pressure difference disappears, and the door body is made easy to open.

As described above, in the fireproof door disclosed in Patent Document 1, a latch device including a handle, a latch bolt for the door body, a latch bolt for the pressure reducing panel, and the like is attached to the pressure reducing panel pivotally driven with respect to the door body. When the door body is to be opened at the time of a fire, the decompression panel provided with the latch device is first opened (that is, a state in which the door body is obliquely angled). According to the description of Patent Document 1, in this state, "it can be blamed to the outside by pushing the fire door 5 or the like" ([0024] bottom line), and the door body (fire door 5) is opened even though the door is opened. Instead of using the decompression panel that is angled with respect to the main body and the handle provided on it, the door body is pushed.

On the other hand, the applicant of the present application can perform both the opening operation of the decompression panel and the opening operation of the door body while holding the handle of the latch device by providing the latch device not on the decompression panel but on the door body. A patent application (Japanese Patent Application No. 2017-165746) relating to the new door has been filed. In this door, the handle is turned to set the latch bolt for the door body and the latch bolt for the decompression panel to the unlocked position, and the decompression panel is rotated by utilizing the pressure difference as described above applied to the decompression panel for decompression. It is designed to open the opening. Further, this door is provided with a magnet device that acts to return the decompression panel from the open position to the closed position, and the decompression panel is useless when the decompression panel is opened and the pressure difference is reduced. I try to prevent it from being left open.

Japanese Unexamined Patent Publication No. 7-259407

The present invention further improves the door according to the above patent application so that the decompression panel can be opened and / or closed by operating the handle, and the panel opening / closing attached to the door for opening / closing the decompression panel. It is intended to provide an operating device.

That is, the present invention
A door body that is pivotable around a first axis that extends vertically along one side edge and is displaceable between the door opening closed position and the door opening open position.
A decompression panel provided in a decompression opening provided so as to penetrate from the front surface to the back surface of the door body, the first side edge and the door on the side closer to the one side edge of the door body. It has a second side edge on the side closer to the other side edge of the body, is pivotable around a second axis extending vertically between the first side edge and the second side edge, and is depressurized. A decompression panel that is displaceably attached between the decompression opening position and the decompression opening position,
A door latch device mounted within the door body adjacent to the other side edge of the door body, the door body being mounted so as to extend horizontally from the front surface to the back surface in a direction extending from the front surface to the back surface thereof. A handle shaft that is rotatable around an axis, a handle that is fixed to the end of the handle shaft, and the handle that is rotated via the handle when the door body is in the door opening closed position. A door locking position that fits into a door locking hole provided in the door opening side edge that projects outward from the other side edge of the door body in conjunction with the shaft and defines the door opening, and the door locking position. A door latching device with a door body latch bolt that can be displaced between the door unlocking position retracted into the door body and the door latching device.
A decompression panel latch device provided in the door body adjacent to the door latch device, which is provided on the side edge of the decompression panel when the decompression panel is in the decompression opening closed position. It has a pressure reducing panel latch bolt that can be displaced between the panel locking position that fits into the panel locking hole and the panel unlocking position that is pulled back from the panel locking hole, and the handle shaft rotates. Then, in conjunction with the displacement of the door body latch bolt from the door locking position toward the door unlocking position, the pressure reducing panel latch bolt is displaced from the panel locking position to the panel unlocking position. And the latch device for the decompression panel
As the handle shaft is rotated and the latch bolt for the door body is displaced from the door locking position toward the door unlocking position, the decompression panel latch device disengages the decompression panel latch bolt. A panel opening / closing operation device that, when displaced to the lock position, displaces the decompression panel from the decompression opening closing position to the decompression opening opening position in conjunction with further rotation of the handle shaft.
Provides a door with an openable and closable depressurizing opening.
Here, the handle means a handle for latch operation in the form of a knob or a lever. Further, the "side edge of the decompression panel" means either the left or right side edge or the upper and lower side edges.

In the door according to the present invention, the latch bolt for the pressure reducing panel is displaced from the panel locking position to the panel unlocking position in conjunction with rotating the handle shaft by operating the handle of the door latch device provided on the door body. At the same time, the decompression panel is displaced from the decompression opening closing position to the decompression opening opening position in conjunction with the further rotation of the handle shaft, so that the decompression panel can be easily and reliably displaced. It is possible to displace the decompression opening to the open position.

In particular,
The panel opening / closing operation device is
An engaging member that rotates with the handle shaft,
A first rack member that is displaceable in the longitudinal axis direction and is attached to the door body, at which one end of the first rack member becomes the drive member when the further rotation of the handle shaft is performed. A first rack member that is engaged and is adapted to be moved in the longitudinal axis direction and has a first rack portion extending in the longitudinal axis direction at the other end.
A first pinion fixed to a pivot fixed to the decompression panel along the second axis to pivotally attach the decompression panel to the door body.
A second rack member that is displaceable in the longitudinal axis direction and is attached to the door body, having a second rack portion that meshes with the first pinion at one end and a third rack portion at the other end. The second rack member and
It has a first rack and a second pinion meshed with the third rack.
Displacement of the first rack member in the longitudinal axis direction with the further rotation of the handle shaft via the first rack portion, the second pinion, and the third rack portion is the second rack. Displacement of the member along the longitudinal axis causes the decompression panel to pivot from the decompression opening closed position to the decompression opening open position via the second rack portion, the first pinion and the pivot. Can be made to.

More specifically, the first and second rack members can be arranged so as to be orthogonal to each other.

More specifically,
The first rack member extends vertically and
The second rack member may extend horizontally adjacent to the lower edge of the decompression panel.

Further, the second pinion has a large-diameter pinion portion and a small-diameter pinion portion arranged coaxially, the first rack meshes with the large-diameter pinion portion, and the third rack has the small-diameter portion. It can be such that it meshes with the pinion portion.

The first rack member is elastically urged from one end toward the other end, and the movement of the first rack member in the longitudinal axis direction due to the further rotation of the handle shaft. It can be urged in the opposite direction. By doing so, when the turning power for the handle is lost, the decompression panel can be automatically returned to the decompression opening closed position by this urging force.

Further, the second rack member is elastically urged in a direction from the third rack portion toward the second rack portion, and the second rack due to the further rotation of the handle shaft. It is also possible to urge the member in the direction opposite to the movement in the longitudinal axis direction. This also enables the automatic return of the decompression panel to the decompression opening closed position.

Further, the decompression panel latch device moves the decompression panel latch bolt from the panel locking position to the panel before the door body latch bolt reaches the door unlocking position in conjunction with the rotation of the handle shaft. It can be displaced to the unlocked position.

The present invention also
A door body that is pivotable around a first axis that extends vertically along one side edge and is displaceable between the door opening closed position and the door opening open position.
A decompression panel provided in a decompression opening provided so as to penetrate from the front surface to the back surface of the door body, the first side edge and the door on the side closer to the one side edge of the door body. It has a second side edge on the side closer to the other side edge of the body, is pivotable around a second axis extending vertically between the first side edge and the second side edge, and is depressurized. A decompression panel that is displaceably attached between the decompression opening position and the decompression opening position,
A door latch device mounted within the door body adjacent to the other side edge of the door body, the door body being mounted so as to extend horizontally from the front surface to the back surface in a direction extending from the front surface to the back surface thereof. A handle shaft that is rotatable around an axis, a handle that is fixed to the end of the handle shaft, and the handle that is rotated via the handle when the door body is in the door opening closed position. A door locking position that fits into a door locking hole provided in the door opening side edge that projects outward from the other side edge of the door body in conjunction with the shaft and defines the door opening, and the door locking position. A door latching device with a door body latch bolt that can be displaced between the door unlocking position retracted into the door body and the door latching device.
A decompression panel latch device provided in the door body adjacent to the door latch device, which is provided on the side edge of the decompression panel when the decompression panel is in the decompression opening closed position. It has a pressure reducing panel latch bolt that can be displaced between the panel locking position that fits into the panel locking hole and the panel unlocking position that is pulled back from the panel locking hole, and the handle shaft rotates. Then, in conjunction with the displacement of the door body latch bolt from the door locking position toward the door unlocking position, the pressure reducing panel latch bolt is displaced from the panel locking position to the panel unlocking position. And the latch device for the decompression panel
It is a panel opening / closing operation device attached to a door having a
As the handle shaft is rotated and the latch bolt for the door body is displaced from the door locking position toward the door unlocking position, the decompression panel latch device disengages the decompression panel latch bolt. Provided is a panel opening / closing operation device that shifts the decompression panel from the decompression opening closing position to the decompression opening opening position in conjunction with further rotation of the handle shaft when displaced to the lock position. do.

In particular,
An engaging member that rotates with the handle shaft,
A first rack member that is displaceable in the longitudinal axis direction and is attached to the door body, wherein one end of the first rack member is the engaging member when the further rotation of the handle shaft is performed. A first rack member that is engaged with and is moved in the longitudinal axis direction and has a first rack portion extending in the longitudinal axis direction at the other end.
A first pinion fixed to a pivot fixed to the decompression panel along the second axis to pivotally attach the decompression panel to the door body.
A second rack member that is displaceable in the longitudinal axis direction and is attached to the door body, having a second rack portion that meshes with the first pinion at one end and a third rack portion at the other end. The second rack member and
It has a first rack and a second pinion meshed with the third rack.
Displacement of the first rack member in the longitudinal axis direction with the further rotation of the handle shaft via the first rack portion, the second pinion, and the third rack portion is the second rack. Displacement of the member along the longitudinal axis causes the decompression panel to pivot from the decompression opening closed position to the decompression opening open position via the second rack portion, the first pinion and the pivot. Can be made to.

In this case, the second pinion has a large-diameter pinion portion and a small-diameter pinion portion coaxially arranged, the first rack meshes with the large-diameter pinion portion, and the third rack engages with the large-diameter pinion portion. It can be made to mesh with the small diameter pinion portion.

Further, the first rack member can be elastically urged from one end of the first rack member toward the other end.

Further, the second rack member can be elastically urged in the direction from the third rack portion toward the second rack portion.

Hereinafter, an embodiment of a door provided with a decompression opening that can be opened and closed according to the present invention will be described with reference to the accompanying drawings.

It is a schematic view seen from the front of the door which concerns on this invention, and shows the example which used it as a closed fire protection door. It is a schematic diagram of the door latch device, the latch device for a pressure reducing panel, and the panel opening / closing operation device provided in the normally closed fire protection door of FIG. 2 is a schematic plan view of a second rack member in the panel opening / closing operation device shown in FIG. 2. It is a schematic diagram which shows the main part of the other embodiment of a panel opening / closing operation device. It is a schematic plan view of the panel opening / closing operation device of FIG.

The door 10 according to the present invention used as the normally closed fire protection door shown in FIG. 1 usually has a door opening (passage opening) 12 provided between a room on the front side of the paper and a corridor on the back side of the paper as seen in the figure. Set to close. The door 10 is pivotally movable around the first axis 16 extending vertically along the left side edge 14 as seen in the figure, and the door opening 12 is closed (door opening closing position) and the door opening 12 is opened. A door body 18 that can be displaced between the position (door opening open position) and a decompression panel 22 provided in the decompression opening 20 provided so as to penetrate from the front surface to the back surface of the door body 18. have. The decompression panel 22 is pivotally movable around a second axis 24 extending vertically between the left and right first side edges 22a and the second side edge 22b, and is positioned to close the decompression opening 20 (decompression). It is displaceable between the opening closing position) and the depressurizing opening 20 opening position (decompressing opening opening position). Although details are omitted, a hinge device with a closer is provided along the first axis 16, and the door body 18 pivotally driven from the door opening closed position to the door opening open position is the hinge device with a closer. Is being urged toward the door opening closing position. Both the door body 18 and the decompression panel 22 are hollow with iron plates on the front and back sides, and when the decompression panel 22 is in the decompression opening closed position shown in FIG. 1, the door body 18 and the decompression panel 22 are made hollow. The front surface and the back surface of the panel 22 are made flush with each other.

As shown in FIG. 2, inside the door body 18 of the door 10, a door latch device 26 for holding the door 10 at the door opening closed position so as to be openable, and a decompression panel provided adjacent to the door latch device 26. A decompression panel latch device 27 that holds the decompression panel 22 openly at the decompression opening closing position, and a panel opening / closing operation device 29 that pivotally moves the decompression panel 22 around the second axis 24 to open and close the decompression opening 20. And are provided.

The door latch device 26 is for locking the door provided on the side edge of the door opening 12 by manually turning the handle 30 attached to the end of the handle shaft 28 that penetrates the door body 18 from the front surface to the back surface and extends horizontally. It has a door body latch bolt 32 that fits in and is disengaged from the hole 12a. Since various functional connection relationships between the handle 30 and the door body latch bolt 32 are well known, detailed description thereof will be omitted in this embodiment. In FIG. 2, reference numbers 26a and 26b indicate a dead bolt for locking the door body 18 to the door opening closed position and a key cylinder for operating the dead bolt, respectively.

The decompression panel latch device 27 is located at the tip (left end) of the panel latch device main body 36 formed in a flat case shape and the rectangular latch bolt holder 37 which is horizontally displaceable in the panel latch device main body 36. The attached decompression panel latch bolt 42 and the decompression panel latch bolt 42 are displaced to the left from the panel unlocking position shown in FIG. 2 and the panel unlocking position as the handle shaft 28 rotates. It has a latch bolt operating means 41 for shifting from the panel locking position fitted to the panel locking hole 40 provided in the second side edge 22b of the 22. The latch bolt holder 37 has a compression spring 43 attached between the latch bolt holder 37 and the fixed spring support 39 fixed to the panel latch device main body 36, and the compression spring 43 causes the pressure reducing panel latch bolt 42 to be used as described above. It is designed to urge the panel lock position. The latch bolt operating means 41 has a latch bolt driving member 38 which is attached near both ends of the handle shaft 28 and is composed of a pair of swinging members 38a which extend parallel to each other along the front surface and the back surface of the panel latch device main body 36. As shown in the figure, the connecting hub portion 38b of the latch bolt drive member 38 with the handle shaft 28 is provided with a pair of arcuate guide holes 46 at positions on both sides in the radial direction of the handle shaft 28, and these guide holes 46 are provided. Each accepts a fixed shaft 48 used for attaching the handle 30 to the door body 18 to limit the rotation range of the latch bolt drive member 38 accompanying the rotation of the handle 30. Further, between the pair of swing members 38a, first and second connecting shafts 50 and 52 extending through the arcuate guide holes 36a and 36b provided in the panel latch device main body 36 are provided, and the pair of swing members 50 and 52 are provided. The moving member 38a is connected. The other end of the torsion spring 54 whose one end is fixed to the panel latch device main body 36 is engaged with the first connecting shaft 50, and the latch bolt drive member 38 is urged clockwise as seen in FIG. There is. The second connecting shaft 52 is engaged with the bifurcated lever 56 which is pivotally attached to the panel latch device main body 36 and is urged counterclockwise by the torsion spring 55, and the door main body latch bolt 32 is placed at the door locking position. When the latch bolt drive member 38 is rotated counterclockwise as the handle shaft 28 is rotated counterclockwise by turning the handle 30 counterclockwise to bring the door to the unlocked position. The second connecting shaft 52 pivots the bifurcated lever 56 clockwise to displace the latch bolt holder 37 to the right as seen in FIG. 2 against the urging force of the compression spring 43, and the decompression latch bolt 42. Is taken out from the panel locking hole 40 to be the panel unlocking position. Similar to the general-purpose latch bolt 42, the pressure reducing panel latch bolt 42 has a tapered shape in which one surface of the pressure reducing panel 22 in the opening / closing direction is an inclined surface and the other surface is a flat surface. 22 is allowed to return from the depressurizing opening open position to the depressurization opening closed position, but the reverse movement is prevented.

FIG. 2 shows a state in which the pressure reducing panel latch bolt 42 is in the panel unlocking position as described above, but in this state, the door body latch bolt 32 is still in the door locking position. That is, when the handle 30 is rotated to some extent from the normal position at the time of a fire to bring it into the state shown in FIG. 2, the door body 18 is in a state of being locked to the door opening closed position by the door body latch bolt 32. The decompression panel 22 is in a state where the decompression panel latch bolt 42 is in the panel release position and can be pivotally moved with respect to the door body 18.

The panel opening / closing operation device 29 is adjacent to a first rack member 44 that extends vertically along the side edge 10a of the door 10 and is moved up and down with the rotation of the handle shaft 28, and the lower edge 22c of the decompression panel 22. The second rack member 47 extending horizontally, the large-diameter pinion portion 49a that meshes with the rack portion 44a at the lower end of the first rack member 44, and the rack portion 47a near the right end of the second rack member 47. A second pinion 49 formed of a small-diameter pinion portion 49b that meshes with the decompression panel 22 and a second shaft 22d that extends downward along the pivot line (second axis) 24 of the decompression panel 22 from the lower edge 22c of the decompression panel 22. It has a pinion 51 that meshes with the rack portion 47b near the left end of the rack member 47. As described above, in FIG. 2, the handle 30 is turned so that the pressure reducing panel latch bolt 42 is in the panel unlocking position and the door body latch bolt 32 is still in the locked position. When the latch bolt drive member 38 is turned counterclockwise to the position shown in the figure, it is provided on the connecting hub portion 38b of the latch bolt drive member 38 so as to project radially with respect to the handle shaft 28. The hook portion (engagement member) 38c is engaged with the pin 44b provided at the upper end of the first rack member 44. When the handle shaft 28 is further rotated counterclockwise via the handle 30 in this state, the first rack member 44 is lifted upward by the pin 44b. As a result, the pinion 49 is rotated counterclockwise, the second rack member 47 is displaced to the right, the pinion 51 is rotated, and the decompression panel 22 is rotated from the decompression opening closing position to the decompression opening opening position. To. The first rack member 44 is fixed to the door body 18 and extends vertically to support the first rack member 44 in a vertically displaceable manner with the upper end portion 45a of the first rack member support 45A. It is urged downward by a compression spring 44d provided between them, and the second rack member 47 is fixed to the door body 18 and extends horizontally to support the second rack member 47 in a horizontally displaceable manner. It is urged to the left by a compression spring 47d (FIG. 3) provided between the right end portion 45b of the second rack member support 45B. Therefore, in a state where the turning power to the handle 30 is lost, the first rack member 44 is displaced downward, the second rack member 47 is displaced to the left, and the decompression panel 22 is returned to the decompression opening closed position. .. The pivot line (second axis) 24 of the decompression panel 22 is located at a substantially central position in the width direction of the decompression panel 22, and is generated by the air pressure applied to the right side portion and the left side portion of the pivot line 24 in the decompression panel 22. The torques around the pivot line 24 with respect to the decompression panel 22 are made to be substantially equal. This is to enable the opening / closing operation of the decompression panel 22 by the rotation of the handle 30 without being affected by the air pressure. However, when the sliding axis 24 is set to be displaced from the center position and the decompression panel 22 is rotated from the decompression opening closing position to the decompression opening opening position, the decompression panel 22 is pneumatically operated. It is also possible to easily rotate the depressurizing panel 22 by rotating the handle 30 so that torque is applied in the direction. In this case, once the decompression panel 22 is in the decompression opening opening position, the pressure difference between the front and back surfaces of the decompression panel 22 is significantly reduced. The resistance due to the air pressure in the direction of is small.

The door according to the present invention and the latch device used therein are as described above, and in order to move the door 10 in the door opening closed position to the door opening opening position, the handle 30 is viewed counterclockwise in the figure. By turning, the decompression panel latch bolt 42 is first set to the panel unlocking position, then the decompression panel 22 is displaced to the decompression opening opening position by the panel opening / closing operation device 29, and then the door body latch bolt 32 is opened to the door. The door 10 can be opened by pushing the handle 30 with the hand that has turned the handle 30 in the locked position. At this time, even if the decompression panel is rotated to open the decompression opening 20, since the handle is on the door body side, the handle 30 is irrespective of the rotation position of the decompression panel. It becomes possible to perform the rotation operation of the door. Further, the decompression panel 22 can be opened and closed directly via the handle 30, and the decompression panel is opened by the pressure difference between the front and rear of the door and closed by the magnetic device as in the above-mentioned patent application. It is possible to open and close the decompression panel more reliably than in the case.

4 and 5 show the main parts of another embodiment of the panel opening / closing operation device 29. The panel opening / closing operation device 29 has a link mechanism type instead of the rack pinion type described above, and FIGS. 4 and 5 show link portions corresponding to the second rack member 47 of the panel opening / closing operation device 29 described above, respectively. It is shown corresponding to FIGS. 2 and 3. That is, the panel opening / closing operation device 29 has a vertical movement link 60 that extends in the vertical direction and moves up and down with the rotation of the handle 30, and a pivot that pivots around the pivot axis 62 by the vertical movement of the vertical movement pivot link. The dynamic link 64, a pair of horizontal dynamic links 66a and 66b whose ends are pivotally attached to the pivot link 64 and extend horizontally parallel to each other, and a pivot shaft 22d fixed to a pivot shaft 22d extending from the lower edge of the decompression panel 22. It has a pivotable link 68 together with 22d, and these pivot links 64, a pair of horizontal dynamic links 66, and a pivot link 68 constitute a parallel link mechanism. In the panel opening / closing operation device 29, when the rotation of the handle 30 is rotated, the vertical movement link 60 is moved up and down, and the pivot 22d and the decompression panel 22 are opened / closed via the parallel link mechanism. ing.

Although the embodiments of the present invention have been described above, the present invention is not limited thereto. For example, the door according to the present invention is not necessarily limited to a fireproof door, and can be applied to a normally open fireproof door instead of the normally closed fireproof door as described above.

Door 10
Side edge 10a
Door opening 12
Door locking hole 12a
Door side edge 14
First axis 16
Door body 18
Decompression panel 22
First side edge 22a
Second side edge 22b
Lower edge 22c
Axis 22d
Axis line (second axis) 24
Door latch device 26
Latch device for decompression panel 27
Handle shaft 28
Panel opening / closing operation device 29
Handle 30
Door body latch bolt 32
Panel latch device body 36
Guide holes 36a, 36b
Latch bolt holder 37
Latch bolt drive member 38
Swing member 38a
Connecting hub 38b
Hook part (engagement member) 38c
Fixed spring support 39
Panel locking hole 40
Latch bolt operating means 41
Latch bolt 42 for decompression panel
Compression spring 43
First rack member 44
Rack portion 44a
Pin 44b
Compression spring 44d
First rack member support 45A
Upper end 45a of the first rack member support
Second rack member support 45B
Right end 45b of the second rack member holder
Guide hole 46
Second rack member 47
Rack part 47a
Rack part 47b
Compression spring 47d
Fixed shaft 48
Pinion 49
Large diameter pinion part 49a
Small diameter pinion part 49b
First connecting shaft 50
Pinion 51
Second connecting shaft 52
Twisting spring 54
Twisting spring 55
Bifurcated lever 56

Claims (13)

A door body that is pivotable around a first axis that extends vertically along one side edge and is displaceable between the door opening closed position and the door opening open position.
A decompression panel provided in a decompression opening provided so as to penetrate from the front surface to the back surface of the door body, the first side edge and the door on the side closer to the one side edge of the door body. It has a second side edge on the side closer to the other side edge of the body, is pivotable around a second axis extending vertically between the first side edge and the second side edge, and is depressurized. A decompression panel that is displaceably attached between the decompression opening position and the decompression opening position,
A door latch device mounted within the door body adjacent to the other side edge of the door body, the door body being mounted so as to extend horizontally from the front surface to the back surface in a direction extending from the front surface to the back surface thereof. A handle shaft that is rotatable around an axis, a handle that is fixed to the end of the handle shaft, and the handle that is rotated via the handle when the door body is in the door opening closed position. A door locking position that fits into a door locking hole provided in the door opening side edge that projects outward from the other side edge of the door body in conjunction with the shaft and defines the door opening, and the door locking position. A door latching device with a door body latch bolt that can be displaced between the door unlocking position retracted into the door body and the door latching device.
A decompression panel latch device provided in the door body adjacent to the door latch device, which is provided on the side edge of the decompression panel when the decompression panel is in the decompression opening closed position. It has a pressure reducing panel latch bolt that can be displaced between the panel locking position that fits into the panel locking hole and the panel unlocking position that is pulled back from the panel locking hole, and the handle shaft rotates. Then, in conjunction with the displacement of the door body latch bolt from the door locking position toward the door unlocking position, the pressure reducing panel latch bolt is displaced from the panel locking position to the panel unlocking position. And the latch device for the decompression panel
As the handle shaft is rotated and the latch bolt for the door body is displaced from the door locking position toward the door unlocking position, the decompression panel latch device disengages the decompression panel latch bolt. A panel opening / closing operation device that, when displaced to the lock position, displaces the decompression panel from the decompression opening closing position to the decompression opening opening position in conjunction with further rotation of the handle shaft.
A door with an openable and closable decompression opening. The panel opening / closing operation device is
An engaging member that rotates with the handle shaft,
A first rack member that is displaceable in the longitudinal axis direction and is attached to the door body, wherein one end of the first rack member is the engaging member when the further rotation of the handle shaft is performed. A first rack member that is engaged with and is moved in the longitudinal axis direction and has a first rack portion extending in the longitudinal axis direction at the other end.
A first pinion fixed to a pivot fixed to the decompression panel along the second axis to pivotally attach the decompression panel to the door body.
A second rack member that is displaceable in the longitudinal axis direction and is attached to the door body, having a second rack portion that meshes with the first pinion at one end and a third rack portion at the other end. The second rack member and
It has a first rack and a second pinion meshed with the third rack.
Displacement of the first rack member in the longitudinal axis direction with the further rotation of the handle shaft via the first rack portion, the second pinion, and the third rack portion is the second rack. Displacement of the member in the longitudinal axis direction causes the decompression panel to pivot from the decompression opening closed position to the decompression opening open position via the second rack portion, the first pinion and the pivot. The door according to claim 1, which is designed to be displaced. The door according to claim 2, wherein the first and second rack members are arranged so as to be orthogonal to each other. The first rack member extends vertically and
The door of claim 3, wherein the second rack member extends horizontally adjacent to the lower edge of the decompression panel. The second pinion has a large-diameter pinion portion and a small-diameter pinion portion arranged coaxially, the first rack meshes with the large-diameter pinion portion, and the third rack has the small-diameter pinion portion. The door according to any one of claims 2 to 4, which is meshed with the door. The door according to any one of claims 2 to 5, wherein the first rack member is elastically urged from one end of the first rack member toward the other end. The door according to any one of claims 2 to 6, wherein the second rack member is elastically urged in a direction from the third rack portion toward the second rack portion. The decompression panel latch device unlocks the decompression panel latch bolt from the panel lock position before the door body latch bolt reaches the door unlock position in conjunction with the rotation of the handle shaft. The door according to any one of claims 1 to 7, which is designed to be displaced to a position. A door body that is pivotable around a first axis that extends vertically along one side edge and is displaceable between the door opening closed position and the door opening open position.
A decompression panel provided in a decompression opening provided so as to penetrate from the front surface to the back surface of the door body, the first side edge and the door on the side closer to the one side edge of the door body. It has a second side edge on the side closer to the other side edge of the body, is pivotable around a second axis extending vertically between the first side edge and the second side edge, and is depressurized. A decompression panel that is displaceably attached between the decompression opening position and the decompression opening position,
A door latch device mounted within the door body adjacent to the other side edge of the door body, the door body being mounted so as to extend horizontally from the front surface to the back surface in a direction extending from the front surface to the back surface thereof. A handle shaft that is rotatable around an axis, a handle that is fixed to the end of the handle shaft, and the handle that is rotated via the handle when the door body is in the door opening closed position. A door locking position that fits into a door locking hole provided in the door opening side edge that projects outward from the other side edge of the door body in conjunction with the shaft and defines the door opening, and the door locking position. A door latching device with a door body latch bolt that can be displaced between the door unlocking position retracted into the door body and the door latching device.
A decompression panel latch device provided in the door body adjacent to the door latch device, which is provided on the side edge of the decompression panel when the decompression panel is in the decompression opening closed position. It has a pressure reducing panel latch bolt that can be displaced between the panel locking position that fits into the panel locking hole and the panel unlocking position that is pulled back from the panel locking hole, and the handle shaft rotates. Then, in conjunction with the displacement of the door body latch bolt from the door locking position toward the door unlocking position, the pressure reducing panel latch bolt is displaced from the panel locking position to the panel unlocking position. And the latch device for the decompression panel
It is a panel opening / closing operation device attached to a door having a
As the handle shaft is rotated and the latch bolt for the door body is displaced from the door locking position toward the door unlocking position, the decompression panel latch device disengages the decompression panel latch bolt. A panel opening / closing operation device that, when displaced to the lock position, displaces the decompression panel from the decompression opening closing position to the decompression opening opening position in conjunction with further rotation of the handle shaft. An engaging member that rotates with the handle shaft,
A first rack member that is displaceable in the longitudinal axis direction and is attached to the door body, wherein one end of the first rack member is the engaging member when the further rotation of the handle shaft is performed. A first rack member that is engaged with and is moved in the longitudinal axis direction and has a first rack portion extending in the longitudinal axis direction at the other end.
A first pinion fixed to a pivot fixed to the decompression panel along the second axis to pivotally attach the decompression panel to the door body.
A second rack member that is displaceable in the longitudinal axis direction and is attached to the door body, having a second rack portion that meshes with the first pinion at one end and a third rack portion at the other end. The second rack member and
It has a first rack and a second pinion meshed with the third rack.
Displacement of the first rack member in the longitudinal axis direction with the further rotation of the handle shaft via the first rack portion, the second pinion, and the third rack portion is the second rack. Displacement of the member in the longitudinal axis direction causes the decompression panel to pivot from the decompression opening closed position to the decompression opening open position via the second rack portion, the first pinion and the pivot. The panel opening / closing operation device according to claim 9. The second pinion has a large-diameter pinion portion and a small-diameter pinion portion arranged coaxially, the first rack meshes with the large-diameter pinion portion, and the third rack has the small-diameter pinion portion. The panel opening / closing operation device according to claim 10, which is meshed with. The panel opening / closing operation device according to claim 10 or 11, wherein the first rack member is elastically urged from one end of the first rack member toward the other end. The panel opening / closing operation according to any one of claims 10 to 12, wherein the second rack member is elastically urged in a direction from the third rack portion toward the second rack portion. Device.

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