JP5364406B2 - Sliding door device with hinged door - Google Patents

Description

The present invention relates to a sliding door apparatus provided with an opening door, and in a typical aspect, relates to a fireproof automatic sliding door apparatus provided with an opening door.

The fireproof automatic sliding door device normally functions as an automatic sliding door that opens and closes the opening of the building, and in the event of a fire, it functions as a fireproof door that stops the function of the automatic sliding door and forcibly self-closes by the automatic closing device. There has also been proposed a sliding door device with an open door for evacuation, in which an opening door is provided on the door body so that an evacuation port can be formed in the door body that is fully closed in the event of a fire.

Conventionally, in fireproof automatic sliding doors with an evacuation door, the closed state of the opening door is held by a lock with a latch provided on the opening door. It is often a mechanism that can open the opening door with one action of operation.

Patent Document 1 discloses an emergency door that opens and closes an evacuation port provided on a slide type automatic door, and the emergency door is provided with a lock that fixes the evacuation port in a closed position in normal times. Although the specific structure of the lock is not disclosed in Patent Document 1, it is considered that the lock is the same as the lock with the latch because the lock is provided in the emergency door.

In the case of using a lock with a latch like this, if the opening door is accidentally opened while functioning as an automatic sliding door, the opening door hits the door (part) and the door or door portion is damaged, It is also dangerous to open the door unexpectedly. Therefore, it is desirable that the holding (fixing) of the hinged door is unlocked only when the sliding door is forcibly self-closed in an emergency such as a fire.

Here, it is conceivable that the locking device provided on the opening door is an electric lock that is unlocked by an operation signal from the disaster prevention panel, but the operation signal from the disaster prevention panel is applied to the door body and the opening door of the sliding door device. It is not easy to draw the wire for drawing in to operate the electric lock because the moving distance of the door body is large.

Japanese Utility Model Publication 59-147892

An object of the present invention is to provide a sliding door device provided with an opening door that enables the opening of the opening door by automatically releasing the locking means when the door body is in a fully closed state.
One of the more specific purposes of the present invention is that it is possible to open the door by automatically releasing the locking means in the event of an emergency such as when the opening is closed and in the event of a fire, etc., without passing through the door body side. There is to do.

The technical means adopted by the present invention are:
A door body that includes an evacuation opening and moves in the width direction of the building opening to open and close the building opening, and an opening door provided in the door body to open and close the evacuation opening In sliding door device,
Lock means provided on the door body, detachable from the opening door, and normally held in a locked state by an urging means;
Provided at the door tip side of the door body, movable between the first position and the second position, and provided with a projecting portion projecting from the door body at the first position at normal time Operating means,
A transmission means that is provided on the door body and transmits the operation of the operation means to the lock means so that the lock means is released by moving the operation means from the first position to the second position;
It is provided on the door end side of the frame of the opening of the building, and pushes in the protruding portion of the operating means in the first position when the door being closed is approaching the fully closed state or in the fully closed state And a pressing means that moves the operating means to the second position.

In one typical aspect, the sliding door device is a fireproof automatic sliding door device, the door body of the sliding door is a suspended type, and is electrically driven by a motor to move left and right to open and close the building opening.
In one aspect, the fireproof automatic sliding door device includes an automatic closing device, and the door is activated (after the main power is turned off) based on an operation signal from the disaster prevention panel in the event of a fire. Automatically closes and becomes fully closed.

In one aspect, the protruding portion protrudes upward from the upper end surface of the door body on the door end side of the door body,
The pressing means protrudes downward based on an operation signal generated in the event of a fire and pushes the protruding portion downward.
In one aspect, a press means is comprised so that it may protrude below by the electromagnetic release which operate | moves based on the operation signal from a disaster prevention board at the time of a fire.

In one aspect, the combination of the shape of the projecting part and the part of the pressing unit that contact each other is such that when the projecting part comes into contact with the pressing unit projecting downward during the closing movement of the door body, And the projecting portion are in contact with each other, and the operation means moves downward as the door body is closed.
When the first member moving in the lateral direction contacts the second member, the first member is moved in the vertical direction while allowing the first member to move in the horizontal direction while converting the lateral force into the vertical direction. Such a specific shape of the contact portion between the first member and the second member can be appropriately designed by those skilled in the art.
In one aspect, by forming an inclined surface on one side of the contact portion, the operating means (protruding part) is moved downward while allowing the door body (protruding part) to move toward the door end. In a more specific aspect, the abutting portion of either the protruding portion or the pressing means is a guide portion that extends in an inclined manner from the upper side to the lower side toward the door end side.

  In one aspect, the said protrusion part protrudes from the door-end side end surface of the said door body to the side (in one aspect, horizontal shape), and the said press means is the door-end side vertical frame of the said frame. . In one aspect, the protruding portion protrudes erroneously during normal opening and closing of the door body by protruding from the upper portion of the door end side end surface of the door body (not reachable unless reaching out). Do not push the part.

  In the present invention, the operating means is moved to the second position by pushing the projecting portion of the operating means in the first position when the closed door is approaching the fully closed state or in the fully closed state. The locking means is automatically released when the door body is in a fully closed state, and the opening door opens accidentally when the door body is normally opened and closed. Can be prevented as much as possible.

According to the second aspect of the present invention, the opening door in the door body can be opened only in an emergency such as a fire in conjunction with the disaster prevention signal without passing through the door body moving in the opening width direction. It becomes possible.
According to the third aspect of the present invention, the timing of the operation signal for operating the automatic closing device and the operation signal for operating the pressing means is not strictly controlled, and in conjunction with the disaster prevention signal, in the event of a fire, etc. Only in the event of an emergency, it is possible to open the door in the door.

  According to the fourth aspect of the present invention, the existing door-side vertical frame can be used as the pressing means, the configuration of the pressing means can be simplified, and the number of parts of the entire apparatus can be reduced.

It is a figure of the sliding door apparatus at the time of door closing. It is a figure which shows 1st Embodiment of this invention, and the figure and side view corresponding to the door-end side corner | angular part (part enclosed with the dotted-line circle) of the door body in FIG. As for the latch and the operating portion, both the first position and the second position are shown. It is a figure which shows 2nd Embodiment of this invention, and the figure and top view corresponding to the door-end side corner | angular part (part enclosed with the dotted-line circle) of the door body in FIG. 1 are shown. About a latch and an action | operation part, both the 1st position (1st attitude | position) and the 2nd position (2nd attitude | position) are shown. It is a figure which shows 3rd Embodiment of this invention, and respond | corresponds to the door-end side corner | angular part (part enclosed with the dotted line circle) of the door body in FIG. For the locking means and the actuation means, both the first position and the second position are shown. For convenience of explanation, the first position of the actuating means is indicated by a dotted line, but it does not actually extend into the door-end side vertical frame. It is a figure which shows 4th Embodiment of this invention, and respond | corresponds to the door-end side corner | angular part (part enclosed with the dotted line circle) of the door body in FIG. For the actuating means, both the first position and the second position are shown. For convenience of explanation, the first position of the actuating means is indicated by a dotted line, but it does not actually extend into the door-end side vertical frame. It is a figure which shows the moving mechanism of the door body of a fire prevention automatic sliding door apparatus.

Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a view of a sliding door device when the door body is fully closed. The sliding door device includes a top-hanging door body 1, and the door body 1 has one vertical frame 2 on the door end side and the other vertical frame 3. As the door bottom side, it can move in the left-right direction between the vertical frames 2 and 3. An upper frame 4 extends between the upper ends of the left and right vertical frames 2 and 3. A half part on the side of the vertical frame 3 in the width direction between the vertical frames 2 and 3 is a sleeve wall or a door pocket part, and the door body 1 is a half part on the side of the vertical frame 2 in the width direction between the vertical frames 2 and 3. Open and close the upper space (the upper frame 4 at the upper end and the floor surface 5 at the lower end).

A rail 6 extending in the moving direction of the door body 1 is provided in the internal space of the upper frame 4, and the door body 1 is suspended from the rail 6 via a hanger roller unit 7 provided at the upper end. As the hanger roller unit 7 rolls on the rail 6, the door body 1 is movable in the left-right direction. The door 1 is an automatic sliding door that is electrically opened and closed during normal operation. In the event of a fire, the door 1 is automatically closed by an automatic closing device that is operated after turning off the main power based on a disaster prevention signal to close the opening. It is configured as follows. These specific configurations will be described later with reference to FIG.

The door body 1 is provided with an evacuation opening and an opening door 8 for opening and closing the evacuation opening. In the illustrated embodiment, the door body 1 having a rectangular shape when viewed from the front includes a door end side vertical fence 10, a door bottom side vertical fence 11, an upper collar 12, and a lower collar 13, and these collars 10, 11, A door opening piece 14 (see FIGS. 2 to 5) is formed in a portion surrounded by 12 and 13 and an evacuation opening is formed at the periphery of the evacuation opening and the opening door 8 abuts at the periphery of the opening door 8. ) Is formed.

The door end side and door bottom side of the door body 1 correspond to the door tip side and door bottom side of the opening door 8. Specifically, the doorside side fence 80, the doorside side fence 81, the upper fence 82, and the lower fence 83 of the door 8 are respectively the doorside side fence 10 and the doorside side fence of the door body 1. 11, the upper rod 12 and the lower rod 13, and the door bottom side vertical rod 81 of the opening door 8 is a door through a hinge (not shown) (for example, an auto hinge that urges the opening door 8 in the closing direction). The body 1 is connected to the door butt side raft 11 of the body 1. A handle (not shown) is provided at an intermediate portion in the height direction on the door end side of the surface portion of the hinged door 8.

The sliding door device according to the embodiment of the present invention further includes a lock unit, an operation unit, a transmission unit, and a pressing unit.

The locking means is provided on the door end side of the door body 1 and can be engaged with and disengaged from the opening door 8. More specifically, the locking portion of the locking means formed on the door end side of the door body 1 (the door end side portion of the upper flange 12 or the door end side vertical rod 10) is connected to the door end side of the opening door 8 ( It can be engaged with and disengaged from a receiving portion formed on the door-end side portion of the upper rod 82 or the door-end side vertical rod 80). Normally, the latching state of the latching portion with respect to the receiving portion is held by the biasing means.

The actuating means is located on the door tip side of the door body 1 and is movable between the first position and the second position.框 10). Normally, the actuating means is in the first position and the locking means is in the locked state. When the actuating means moves from the first position to the second position, the locking means changes from the locked state to the released state. The actuating means includes a projecting portion that projects from the end surface of the door body 1 at the first position (the door tip side portion or the door tip side end surface of the upper end surface). As the actuating means moves from the first position to the second position, the projecting dimension of the projecting part decreases, but in one aspect, the projecting part is also the door 1 in the second position. It protrudes from the end face of.

The transmission means is provided on the door tip side of the door body 1 (the door tip side portion or the door tip side vertical rod 10 of the upper rod 12), and is locked when the operating means moves from the first position to the second position. The operation of the actuating means is transmitted to the lock means so that the means is in a released state. As the transmission means, in the embodiment described later, a rack, a pinion, and a push-pull lock mechanism are shown. However, as a transmission means for causing another member to perform a desired operation in conjunction with the movement of a certain member, It is understood by those skilled in the art that various mechanisms can be adopted, and the transmission means for interlocking the operating means and the locking means is not limited to the rack, pinion, and push-pull lock mechanisms, and various mechanisms are adopted. Can be done.

The pressing means is provided on the door end side of the frame body of the building opening (the door end side portion of the upper frame 4 or the door end side vertical frame 2), and the door body 1 during the self-closing movement is fully closed. When the actuator is close to or in the fully closed state, the operating portion is moved to the second position by pushing in the protruding portion of the operating portion in the first position. In one typical aspect, the pressing means is configured to operate only by an activation signal based on fire detection, and the locking means of the opening door 8 is released only in an emergency such as a fire.

[First Embodiment]
A first embodiment will be described with reference to FIG. A latch 15 serving as a locking means is movable in a vertical direction between a first position located on the lower side and a second position located on the upper side of the door tip side portion of the upper collar 12 of the door body 1. It is provided. The lower end portion of the latch 15 is a locking portion 15A, and when the latch 15 is in the first position, the latch 15 is attached to the concave latch receiver 16 formed at the door end side portion of the upper lid 82 of the opening door 8. A locking portion 15A at the lower end is locked. A coil spring 17 serving as an urging means is provided between the upper end of the latch 15 and the upper end surface 120 of the door body 1, and the coil spring 17 presses the latch 15 downward, so that the latch is normally operated. 15 maintains the first position, and the locking means is in the locked state.

At the door end side portion of the upper collar 12 of the door body 1, the operating portion 18 is vertically moved between a first position positioned on the upper side and spaced apart from the latch 15 and a second position positioned on the lower side. It can be moved in the direction. Racks 150 and 180 are formed on the opposing surfaces of the latch 15 and the operating portion 18 in the vertical direction (moving direction of the latch 15 and the operating portion 18), respectively. A pinion 19 that meshes with each of the racks 150 and 180 is provided therebetween.

The first position and the second position of the operating portion 18 correspond to the first position and the second position of the latch 15, respectively. Therefore, the locking means is in the locked state at the first position. In the second position, the locking means is released. When the operating portion 18 in the first position moves down, the pinion 19 meshed with the rack 180 of the working portion 18 rotates counterclockwise, and the rack 150 meshed with the pinion 19 in conjunction with the rotation of the pinion 19. Then, the latch 15 moves upward from the first position, and the locking portion 15A at the lower end of the latch 15 comes out of the latch receiver 16 and the locking means is released. Thus, in the first embodiment, the transmission means is configured by the racks 150 and 180 and the pinion 19. The latch 15, the coil spring 17, the operating portion 18, and the pinion 19 are housed in a case body C provided in a door-end side portion of the upper collar 12 of the door body 1. The latch 15, the coil spring 17, and the operating portion 18 are desirably moved up and down along a guide (not shown) (which may be the inner wall of the case body C). Such a guide can be appropriately designed by those skilled in the art.

In the first position, the upper end side of the operating portion 18 is a protruding portion 20 that protrudes upward from the upper end surface 120 of the door body 1. In the upper frame 4, a pressing block 21 as a pressing means is provided on the door end side. The pressing block 21 has a rectangular parallelepiped shape, and includes a horizontal surface at the lower end and a plurality of vertical side surfaces. The pressing block 21 protrudes downward by the operation of the solenoid type electromagnetic release 22 based on the operation signal from the disaster prevention panel, and pushes the protruding portion 20 on the upper end side of the operating unit 18 downward to place the operating unit 18 in the first position. To the second position.

In one aspect, the timing of the automatic closing of the door body 1 by the automatic closing device based on the operation signal from the disaster prevention panel and the operation of the pressing block 21 by the solenoid type electromagnetic release 22 is after the door body 1 is fully closed. By setting the pressing block 21 to be pressed, the pressing block 21 pushes the protruding portion 20 of the operating portion 18 protruding at the upper end of the fully closed door body 1 downward to move the operating portion 18 downward. Thus, the latch 15 is moved up from the first position to the second position while the coil spring 17 is compressed by the transmission means comprising the racks 150 and 180 and the pinion 19, and the locking means is released.

The pressing block 21 may be operated before the door body 1 is fully closed. The protruding portion 20 is formed with a guide portion 200 extending in an inclined manner from the upper side toward the lower side toward the door end side, and the pressing block 21 (door butt) protruding downward when the door body 1 is closed and moved. When the guide portion 200 comes into contact with the corner portion between the vertical surface on the side and the horizontal surface at the lower end, the operating portion 18 moves down as the door body 1 moves while the guide portion 200 comes into contact with the pressing block 21. The latch 15 is moved upward from the first position to the second position while the coil spring 17 is compressed by the transmission means composed of the racks 150 and 180 and the pinion 19, and the locking means is released. In the illustrated embodiment, the inclined guide part 200 is formed in the protruding part 20 and the corner part of the rectangular parallelepiped-shaped pressing block 21 is guided by being brought into contact with the guide part 200. The combination of the shapes of the blocks 21 may be reversed, and an inclined guide portion may be formed in the pressing block 21 to guide the protruding portion 20.

In the present embodiment, the pressing block 21 and the electromagnetic release 22 are provided at positions close to the door tip side in the upper frame 4, and the hanger roller unit 7 on the door tip side at the upper end of the door body 1 in the fully closed state. Is located on the door side. Therefore, the pressing block 21 and the electromagnetic release 22 do not interfere with the hanger roller unit 7 provided at the upper end of the door body 1, and the normal opening / closing movement of the door body 1 is not hindered.

[Second Embodiment]
A second embodiment will be described with reference to FIG. The same constituent elements are given common reference numerals between FIG. 2 and FIG. A latch 15 ′ as a locking means is provided on the upper side portion of the door-end side vertical rod 10 of the door body 1, and the latch 15 ′ is a concave shape formed on the upper portion of the door-end side vertical rod 80 of the opening door 8. The latch receiver 16 'can be engaged and disengaged. The latch 15 ′ is rotatable between the first posture and the second posture, and the locking means is in a locked state when the latch 15 ′ is in the first posture, and the latch 15 ′ is in the first posture. When in the 2 position, it is in the release state. In a normal state, the first posture of the latch 15 ′ is held by an urging means (spring) (not shown).

An operating portion 18 ′ is provided at the door end side portion of the upper collar 12 of the door body 1 so as to be movable in the vertical direction between an upper first position and a lower second position. The first position and the second position of the actuating portion 18 ′ correspond to the first position and the second position of the latch 15 ′, respectively. Therefore, the locking means is in the locked state at the first position. In the second position, the locking means is released.

In the first position, the upper end side of the operating portion 18 ′ is a protruding portion 20 that protrudes upward from the upper end surface 120 of the door body 1. In the upper frame 4, a pressing block 21 as a pressing means is provided on the door end side. The pressing block 21 has a rectangular parallelepiped shape, and includes a horizontal surface at the lower end and a plurality of vertical side surfaces. The pressing block 21 protrudes downward by the operation of the solenoid type electromagnetic release 22 based on the operation signal from the disaster prevention panel, and pushes the protruding portion 20 on the upper end side of the operating portion 18 ′ downward to bring the operating portion 18 ′ into the first. It is comprised so that it may act | operate from a 2nd position to a 2nd position.

The actuating part 18 'and the latch 15' are connected in transmission via a transmission means 19 '. Actuator 18 'is a rod extended in the up-and-down direction, and the lower end side of actuator 18' is connected with transmission means 19 '. The transmission means 19 ′ is a mechanism that converts the downward movement of the operating portion 18 ′ into the rotation of the latch 15 ′, and a push-pull lock mechanism that is generally used for an entrance door or the like can be used.

The second embodiment is different from the first embodiment in the configuration of the locking means (latch 15 ′, latch receiver 16 ′), operating means (operating part 18 ′), and transmission means 19 ′. Regarding the configuration and movement of other elements, the description of the first embodiment can be used as appropriate. Moreover, in 1st Embodiment and 2nd Embodiment, the reset operation | movement after a locking means is cancelled | released by the door 1 which carried out self-closing movement is demonstrated. First, the door body 1 in the fully closed state is moved in the opening direction, and then the pressing block 21 protruding downward is pushed up into a retracted posture, and then the retracting posture of the pressing block 21 by the electromagnetic release 22 by turning on the power. Is maintained and can be used as an automatic sliding door device.

[Third Embodiment]
A third embodiment will be described with reference to FIG. For the same components, reference numerals common between FIGS. 2, 3 and 4 are given. 3rd Embodiment is the aspect which the site | part in which a locking means, an action | operation means, and a transmission means were provided with respect to 1st Embodiment changed from the door-end side site | part of the upper collar 12 to the upper site | part of the door-end side vertical fence 10 The components of the locking means, the operating means, and the transmission means are basically the same.

In the upper part of the door toe side vertical fence 10 of the door body 1, the latch 15 as a locking means is horizontally between a first position located on the door bottom side and a second position located on the door tip side. It is provided to be movable. The end of the latch 15 on the door bottom side is a locking portion 15A, and when the latch 15 is in the first position, a concave latch receiver 16 formed on the upper portion of the door-end side vertical shaft 80 of the opening door 8 is provided. The latching portion 15A of the latch 15 is latched to the '. A coil spring 17 serving as a biasing means is provided between the door end side end surface of the latch 15 and the door end side end surface 100 of the door body 1, and the coil spring 17 presses the latch 15 toward the door bottom side. Thus, normally, the latch 15 maintains the first position, and the locking means is in the locked state.

In the upper part of the door-end side vertical shaft 10 of the door body 1, the operating part 18 is spaced apart from the latch 15 and is positioned at the door-end side and the second position is positioned at the door-end side. Are provided so as to be movable in the horizontal direction. Racks 150 and 180 are respectively formed on the opposing surfaces of the latch 15 and the operating portion 18 in the horizontal direction (the moving direction of the latch 15 and the operating portion 18). A pinion 19 that meshes with each of the racks 150 and 180 is provided therebetween.

The first position and the second position of the operating portion 18 correspond to the first position and the second position of the latch 15, respectively. Therefore, the locking means is in the locked state at the first position. In the second position, the locking means is released. When the actuating portion 18 in the first position moves to the door bottom side, the pinion 19 meshed with the rack 180 of the actuating portion 18 rotates in the clockwise direction, and meshes with the pinion 19 in conjunction with the rotation of the pinion 19. The latch 15 moves from the first position to the door end side via the rack 150, and the latching portion 15A at the end of the door butt side of the latch 15 comes out of the latch receiver 16 'and the locking means is released.

In the first position, the door end side of the operating portion 18 is a protruding portion 20 ′ that protrudes horizontally from the door end side end surface 100 of the door body 1. In the normal state, when the door body 1 is fully closed, the projecting portion 20 ′ is pushed in, so that the operating portion 18 is in the second position, and the locking means of the open door 8 is released. When the door body 1 is self-closed by the operation of the automatic closing device based on the operation signal from the disaster prevention panel, the protruding portion 20 ′ comes into contact with the door-end side vertical frame 2 when the door body 1 approaches the fully closed state. In accordance with the self-closing movement of the door body 1, the projecting portion 20 ′ is pushed, so that the operating portion 18 moves to the door bottom side and operates to the second position. The locked state is released by moving from the second position to the second position.

Since the protruding portion 20 ′ of the actuating portion 18 protrudes from the upper portion of the door end side end surface 100 of the door body 1 (not reachable unless the hand is reached), it protrudes accidentally during normal opening / closing operation of the door body 1. There is a low possibility that the portion 20 'will be pushed. Further, if an automatic hinge having a door closer function is adopted for the opening door 8, even if the locking means is released, the closing posture of the opening door 8 is maintained, and in order for the opening door 8 to be opened, Two actions are required: the pushing operation of the protruding portion 20 'and the operation of a handle (not shown) (the handle is provided at a position where it can be easily operated and separated from the protruding portion 20'), and the opening door 8 is accidentally opened. Is unlikely.

[Fourth Embodiment]
A fourth embodiment will be described with reference to FIG. About the same component, the common reference number is provided between drawing (FIGS. 2 thru | or FIG. 4) which concerns on embodiment mentioned above, and FIG. The fourth embodiment is different from the second embodiment in that the portions where the locking means, the operating means, and the transmission means are provided, and the components of the locking means, the operating means, and the transmission means are basically the same. is there.

A latch 15 ′ as a locking means is provided at the door tip side portion of the upper lid 12 of the door body 1, and the latch 15 ′ is a concave latch formed at the door tip side portion of the upper lid 82 of the opening door 8. The receptacle 16 can be engaged and disengaged. The latch 15 ′ is rotatable between the first posture and the second posture, and the locking means is in a locked state when the latch 15 ′ is in the first posture, and the latch 15 ′ is in the first posture. When in the 2 position, it is in the release state. In a normal state, the first posture of the latch 15 ′ is held by an urging means (spring) (not shown).

An operating portion 18 ′ is provided at the door tip side portion of the upper collar 12 of the door body 1 so as to be movable in a horizontal direction between a first position on the door tip side and a second position on the door bottom side. is there. The first position and the second position of the actuating portion 18 ′ correspond to the first position and the second position of the latch 15 ′, respectively. Therefore, the locking means is in the locked state at the first position. In the second position, the locking means is released.

In the first position, the door end side of the operating portion 18 ′ is a protruding portion 20 ′ that protrudes horizontally from the door end side end surface 100 of the door body 1. In the normal state, when the door body 1 is fully closed, the protruding portion 20 ′ is pushed in so that the operating portion 18 ′ is in the second position, and the locking means of the open door 8 is released. When the door body 1 is self-closed by the operation of the automatic closing device based on the operation signal from the disaster prevention panel, the protruding portion 20 ′ comes into contact with the door-end side vertical frame 2 when the door body 1 approaches the fully closed state. In accordance with the self-closing movement of the door body 1, the projecting portion 20 ′ is pushed, so that the operating portion 18 ′ moves to the door bottom side and operates to the second position. The locked state is released by moving from the first position to the second position.

As shown in FIG. 6, a motor 23 is provided in the inner space of the upper frame 4, and the chain 26 wound between the driving side sprocket 24 and the driven side sprocket 25 is moved in the left-right direction by driving the motor 23. . The chain 26 is connected to the hanger roller unit 7 on the door bottom side of the door body 1, and the door body 1 moves in the left-right direction as the chain 26 moves. Furthermore, an automatic closing device that operates in response to an operation signal from the disaster prevention panel is provided in the upper frame 4 in a fire. The automatic closing device includes an emergency forced closing drive device 27 provided on the door end side of the upper frame 4, a guide wire 28 drawn horizontally from the emergency forced closing drive device 27 toward the door bottom side, and a guide An emergency closing device 29 that holds the door 28 side end of the wire 28 and a block 30 that connects the guide wire 28 and the door body 1 are provided. In the emergency compulsory closing drive device 27, the front end of the door butt is held by the emergency closing device 29 (for example, by a solenoid) in a state where the guide wire 28 is pulled toward the door end side (closing direction). When the holding of the emergency closing device 29 is released, the guide wire 28 moves to the door end side (closing direction) and locks to the block 30, and moves to the door tip side while being locked to the block 30. The door body 1 moves by self-closing. Such an automatic closing device is known, and for example, a similar configuration is disclosed in Japanese Patent Application Laid-Open No. 2006-328636.

The present invention can be used for an automatic fireproof sliding door device.

DESCRIPTION OF SYMBOLS 1 Door body 8 Open door 15, 15 'Latch 150 Rack 16, 16' Latch receptacle 17 Coil spring 18 Actuator 180 Rack 19 Pinion 19 'Transmission means 20 Protrusion part

Claims (4)

A door body that includes an evacuation opening and moves in the width direction of the building opening to open and close the building opening, and an opening door provided in the door body to open and close the evacuation opening In sliding door device,
Lock means provided on the door body, detachable from the opening door, and normally held in a locked state by an urging means;
Provided at the door tip side of the door body, movable between the first position and the second position, and provided with a projecting portion projecting from the door body at the first position at normal time Operating means,
A transmission means that is provided on the door body and transmits the operation of the operation means to the lock means so that the lock means is released by moving the operation means from the first position to the second position;
It is provided on the door end side of the frame of the opening of the building, and pushes in the protruding portion of the operating means in the first position when the door being closed is approaching the fully closed state or in the fully closed state Pressing means for moving the actuating means to the second position,
The sliding door apparatus provided with the opening door which has. The protruding portion protrudes upward from the upper end surface of the door body on the door end side of the door body,
The pressing means protrudes downward based on an operation signal generated during a fire and pushes the protruding portion downward.
A sliding door device comprising the opening door according to claim 1.   The combination of the shape of the projecting portion and the portion of the pressing means that contact each other is such that when the projecting portion comes into contact with the pressing means projecting downward during the closing movement of the door body, the pressing means and the projecting portion. The sliding door device having an opening door according to claim 2, wherein the operation means moves downward as the door body is closed while the door is in contact. The protruding portion protrudes laterally from the door end side end surface of the door body, and the pressing means is a door end side vertical frame of the frame body.
The door device according to claim 1.

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