JP2010068946A - Fire preventing apparatus for hanging type sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively prevent flame, smoke and heat from entering a next room at the time of fire in such a manner that when a sliding door is closed, gaps formed between the sliding door and an opening section which becomes an entrance, especially, gaps which are formed on the door bottom side of the sliding door, are closed by an original movable cover plate. <P>SOLUTION: This fire preventing apparatus for hanging type sliding door includes the cover plate 20 which closes the gaps S formed between the sliding door 10 and the opening section O which becomes the entrance under a closed state of the hanging type sliding door 10. The cover plate 20 has a height equivalent to the height of the sliding door 10 and a width W2 which is larger than the thickness of the sliding door 10. The cover plate 20 has a bent section 22 on the distal end section in the width direction, and is formed to have a cross section of an L shape. The cover plate 20 is turnably installed with the vertical direction as the axial center at a vertical edge position on the door bottom side of the opening section O in the end section on the opposite side from the bent section 22. At the time of fire, the cover plate 20 operates, and turns toward the sliding door side from a specified position on the entrance side, and the door bottom 13 of the closed sliding door 10, the opening section, and a protruding corner section 13a of the door bottom on the opposite side are covered by the cover plate 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a hanging type sliding door fire prevention device that can effectively prevent flame, smoke, and heat from entering a neighboring room during a fire.

In a sliding door that supports and opens and closes with a suspension vehicle that runs on a rail, when the sliding door is closed, a gap is formed between the sliding door and the partition (wall) on the door bottom side of the sliding door. There was a problem that flames, smoke, etc. leaked from the gap and entered the next room.
In Patent Document 1, as a gap prevention structure of a fire door that suppresses the gap between the sliding door and the partition as much as possible so that the fire does not leak, “the door bottom member 2 is attached to the door bottom of the fire door 1, The overlapping piece 5 is bent and extended to the door end side leaving a gap 6 between the surface 4 of the fire door 1, while the vertical beam member 8 is attached to the vertical beam 7 of the three-sided frame provided in the frontage, In the vertical beam member 8, a polymer piece 9 is formed with a gap 11 between the vertical beam 7 and the surface 10 of the vertical beam 7, and when the fire door 1 is closed, this polymer piece 9 becomes a polymer piece of the door bottom member 2. 5 is positioned in the gap 6 formed between the fire door surface 4 and the fire door surface 4 (summary).
However, in the above technique, since the door butt member 2 is directly screwed and attached to the door butt of the fire door 1, heat is directly transmitted to the door butt through the door butt member 2 in the event of a fire. Heat conduction causes the door to warp. In order to prevent this, it is necessary to increase the frame strength of the door, which increases the weight and cost of the door.

Japanese Patent Laid-Open No. 10-99463

  The present invention was developed in view of the above circumstances, and relates to a suspension type fireproof device for sliding doors. When the sliding door is closed, the sliding door and an opening serving as an entrance (formed by a partition or a frame) are provided. By blocking the formed gap, especially the gap formed on the door butt side of the sliding door, with a unique movable shielding plate, it effectively prevents flame, smoke and heat from entering the adjacent room in the event of a fire. The purpose is to suppress heating to the door bottom.

(1) It is provided with a shielding plate that closes a gap formed between the sliding door and the opening serving as the doorway in the closed state of the hanging type sliding door,
The shielding plate has a height corresponding to the height of the sliding door and a width larger than the thickness of the sliding door, has a bent portion at the front end in the width direction, and is formed in an L-shaped cross section, and is opposite to the bent portion. Is provided at the vertical side position of the opening on the door butt side of the opening so as to be rotatable about the vertical direction as an axis,
At least in the event of a fire, the shielding plate is actuated to rotate from a predetermined position on the entrance / exit side toward the sliding door, so that, in the closed state of the sliding door, the door butt of the closed sliding door and the door butt opposite to the opening This is a hanging type fireproof device for sliding doors that is configured to cover the protruding corner portion with the shielding plate.
Tojiri refers to the end surface (side surface) located on the opposite side of the sliding door, and the door tip refers to the end surface (side surface) of the sliding door.
In addition, the entrance / exit side refers to the rear side of the sliding door with respect to the sliding door, that is, the side of the partition where the entrance / exit is formed, and the sliding door side refers to the front side of the sliding door or the partition / opening with respect to the sliding door. The side of the sliding door as seen from the section and frame.
(2) a locking mechanism capable of fixing the shielding plate at a predetermined position on the entrance / exit side, and a mechanism for releasing the fixing by the locking mechanism in the event of a fire,
The shield plate can be fixed at a predetermined position by the lock mechanism during normal use, and the shield plate is activated when the lock mechanism is released in the event of a fire.
(3) The locking mechanism fixes the shielding plate at a predetermined position on the entrance / exit side in a state where a spring force that rotates the shielding plate toward the sliding door is biased to the shielding plate. is there.
(4) The sliding door includes a self-closing device,
A mechanism capable of releasing the locking mechanism;
By selecting to release the locking mechanism during normal use, the shield plate is configured to rotate following the opening and closing of the sliding door, and the door edge of the closed sliding door of the shielding plate is A guide roller that can contact the back surface of the sliding door when the sliding door is opened and closed is provided on the surface to be covered.
(5) comprising a shielding plate that closes a gap formed between the sliding door and the opening serving as the doorway in the closed state of the hanging type sliding door;
The shielding plate has a height corresponding to the height of the sliding door and a width larger than the thickness of the sliding door, has a bent portion at the front end portion in the width direction, and is formed in an L-shaped cross section. At the end, the vertical side of the opening on the door side is provided so as to be pivotable about the vertical direction,
At least in the event of a fire, the shielding plate is actuated to rotate from a predetermined position on the entrance / exit side toward the sliding door side, so that the door end of the closed sliding door and the door end on the opposite side of the opening are in the closed state of the sliding door This is a hanging type sliding door fire prevention device configured to cover the protruding corner of the sliding door with the shielding plate.
(6) comprising a shielding plate that closes a gap formed between the sliding door and the opening serving as the doorway in the closed state of the hanging type sliding door;
The shield plate is provided at the end of the inner surface of the vertical frame forming the opening so as to be rotatable about the vertical direction as an axis.
At least in the event of a fire, the shielding plate operates and rotates from the position along the inner surface of the vertical frame toward the sliding door, so that the shielding plate substantially contacts the back of the closed sliding door in the closed state of the sliding door. It is a fireproof device for a hanging type sliding door configured as described above.
(7) comprising a shielding plate that closes a gap formed between the sliding door and the opening serving as the doorway in the closed state of the hanging type sliding door;
The shielding plate is provided at the end of the inner surface of the horizontal frame forming the opening so as to be rotatable about the horizontal direction as an axis.
At least in the event of a fire, the shielding plate operates and rotates from the position along the inner surface of the horizontal frame toward the sliding door, so that the shielding plate substantially contacts the back of the closed sliding door in the closed state of the sliding door. It is a fireproof device for a hanging type sliding door configured as described above.
(8) comprising a shielding plate that closes a gap formed between the sliding door and the opening serving as the doorway in the closed state of the hanging type sliding door;
The shielding plate is provided on the floor forming the opening so as to be rotatable about a horizontal direction as an axis.
At least in the event of a fire, the shielding plate operates and rotates from the position along the floor toward the sliding door, so that the shielding plate substantially contacts the back of the closed sliding door in the closed state of the sliding door. This is a fireproof device for a suspended sliding door.

(1) A gap formed between the sliding door and the opening serving as the doorway when the sliding door is closed by operating the shielding plate at least in the event of a fire and rotating from the predetermined position on the doorway side toward the sliding door side. The doors of the closed sliding doors and the corners of the doors on the opposite side of the opening are covered with a shielding plate, which allows flames, smoke, and heat to enter the adjacent room in the event of a fire. Can be effectively prevented. Moreover, since the shielding plate is not directly fixed to the sliding door, heating to the door butt portion of the sliding door can be suppressed.
(2) During normal use, the shield plate can be fixed at a predetermined position by the lock mechanism, and the shield plate is activated by releasing the lock mechanism in the event of a fire. At times, each time the sliding door is opened and closed, the shielding plate does not operate, and the shielding plate can be operated only in the case of a necessary fire that prevents the flame, smoke, and heat from entering the adjacent room by the shielding plate.
(3) The lock mechanism releases the lock mechanism in order to fix the shield plate at a predetermined position on the entrance / exit side while the shield plate is biased with a spring force that rotates the shield plate toward the sliding door. The mechanism for operating the shielding plate at the time is simple.
(4) By selecting to release the locking mechanism during normal use, the shield plate is configured to rotate following the opening and closing of the sliding door. Because the plate operates, it is safe and secure.
In addition, since the shielding plate has a guide roller that can contact the back of the sliding door when the sliding door is opened and closed on the side of the closed sliding door that covers the door butt, the bent portion of the shielding plate contacts the back of the sliding door. The sliding door is opened and closed smoothly without damaging the sliding door.
(5) A gap formed between the sliding door and the opening serving as the entrance / exit in the closed state of the sliding door by operating the shielding plate at least in a fire and rotating from the predetermined position on the entrance / exit side toward the sliding door side. The door of the closed sliding door and the door corner of the door opposite to the opening are covered with a shielding plate, which allows flames, smoke, and heat to enter the adjacent room during a fire. Can be effectively prevented. Moreover, since the shielding plate is not directly fixed to the sliding door, heating to the door end portion of the sliding door can be suppressed.
(6) At least in the event of a fire, the shielding plate operates and rotates from the position along the inner surface of the vertical frame toward the sliding door, so that the shielding plate substantially contacts the back of the closed sliding door when the sliding door is closed. Therefore, flame, smoke, and heat can be prevented from entering the adjacent room from the gap between the inner surface of the vertical frame and the back surface of the sliding door.
(7) At least in the event of a fire, the shielding plate is actuated and rotated from the position along the horizontal frame toward the sliding door, so that the shielding plate substantially contacts the back of the closed sliding door in the closed state of the sliding door. Flames, smoke, and heat can be prevented from entering the adjacent room from the gap between the inner surface of the horizontal frame and the back of the sliding door.
(8) At least in the event of a fire, the shielding plate operates and rotates from the position along the floor toward the sliding door side, so that the shielding plate substantially contacts the back of the closed sliding door in the closed state of the sliding door, Flames, smoke, and heat can be prevented from entering the adjacent room through the gap between the floor and the back of the sliding door.

  Examples of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments, and various modifications and additions are possible within the scope of the present invention.

(Overview)
FIG. 1 is a front view of an entrance / exit when the shielding plate is in an inoperative state, FIG. 2 is a front view of the entrance / exit when the shielding plate is in an actuated state, FIG. 3 is a rear view of the entrance / exit when the shielding plate is inoperative, and FIG. It is a rear view of the entrance / exit in an operation state. 1 and 3 show a state in which the sliding door 10 indicated by a broken line is opened, and FIGS. 2 and 4 show a state in which the sliding door 10 is closed. In order to make the shielding plate in an operating state easy to understand, it is shown by hatching. A part of the guide roller is not shown.
In this embodiment, fire prevention devices are provided at a total of six locations.
Each fire prevention device includes, at each position, a movable shielding plate that closes a gap formed between the sliding door and an opening serving as an entrance / exit when the suspension type sliding door is closed.
As shown in FIGS. 1 and 2, the shielding plate 20 of the door butt side fire prevention device 1 is provided at the vertical side position on the door butt side of the opening O serving as the doorway so as to be rotatable about the vertical direction as an axis. It has been. Moreover, the shielding plate 40 of the fire prevention device 2 on the door-end side is provided at the vertical side position on the door-end side of the opening O serving as the doorway so as to be rotatable about the vertical direction.
As shown in FIGS. 3 and 4, the shielding plates 50 and 50 of the fire protection devices 3 and 3 on the inner surface side of the vertical frame are vertically aligned with the end portions of the inner surfaces of the vertical frames 6 and 6 forming the opening O. As a heart, it is provided so that rotation is possible.
Further, the shielding plate 60 of the fire protection device 4 located on the inner surface of the horizontal frame 7 is provided at the end of the inner surface of the horizontal frame 7 forming the opening O so as to be rotatable about the horizontal direction as an axis.
Moreover, the fire protection device 5 shielding plate 70 located on the floor is provided on the floor forming the opening O so as to be rotatable about the horizontal direction as an axis.
The opening O serving as an entrance / exit is usually formed by a three-way frame including a left and right vertical frames 6 and 6 and an upper horizontal frame 7 and a floor portion. Inside the vertical frames 6, 6 and the horizontal frame 7, a gasket 8 is provided for contacting the back surface of the sliding door 10 and maintaining airtightness (see FIGS. 5 and 10).
The gasket 8 is made of rubber or synthetic resin suitable for maintaining airtightness. Desirably, it is made of a material such as silicone rubber or fluororubber having excellent heat resistance, has a cross-sectionally R-shape, and has a locking portion protruding in a T-shaped cross section on one side thereof, and is opposed to the locking portion. The side portion has a fin portion protruding obliquely from the corner portion, and the fin portion protrudes from a through hole provided in the frame, and comes into contact with the back surface of the sliding door 10 to maintain airtightness.

(sliding door)
Reference numeral 10 denotes a sliding door (main body). As shown in FIGS. 1, 2, and 10, the sliding door 10 is a suspension type that is suspended through a suspension wheel 12 that engages with a rail 11. Reference numeral 13 denotes a pulling rod (handle) that is gripped when opening and closing.
The sliding door 10 is a fireproof door, that is, a flame retardant door that is installed to prevent the spread of fire in the event of a fire in a building, and preferably satisfies the standards of fire prevention equipment or specific fire prevention equipment specified in the Building Standard Law. Used for.
The hanging structure of the sliding door 10 can apply various hanging structures, and is not specifically limited.
Moreover, the sliding door can be comprised as what was provided with the self-closing apparatus which closes automatically with the dead weight.

<Fire protection device on the doorside>
FIG. 5 is a plan cross-sectional view schematically showing the entrance / exit part, showing the fireproof device 1 on the door bottom side, the fireproof device 2 on the door end side, and the fireproof devices 3 and 3 on the inner surface side of the vertical frame. The figure is a plan view of the sliding door 10 in a closed state. Hatching is omitted.
5A shows a state in which the shielding plates 20, 40, 50 are fixed at predetermined positions by the lock mechanism 30, and FIG. 5B shows a predetermined position of the shielding plates 20, 40, 50 by the lock mechanism 30. The state in which the fixation at is released.
6 to 8 are explanatory views of the lock mechanism 30, and FIG. 9 is a cross-sectional plan view illustrating an operation related to opening and closing of the sliding door.

(Shield plate)
The shielding plate 20 includes a substrate portion 21 having a height H (see FIG. 1) corresponding to the height of the sliding door 10 and a width W2 (see FIG. 5) larger than the thickness W1 of the sliding door 10, and the width of the substrate portion 21. It has a bent portion 22 bent at a substantially right angle at the front end portion in the direction, and is formed in an L-shaped cross section. The shielding plate 20 is made of a flame retardant material such as a metal plate.
As shown in FIG. 5, the shielding plate 20 is provided at the end of the opening O opposite to the bent portion 22 so as to be rotatable about the vertical direction at the vertical side position on the door butt side. . In the illustrated example, the shielding plate 20 is combined with a fixed plate 24 paired with the substrate portion 21 to form a hinge having a rotating portion (axial center) 23, and the rotating portion 23 is a vertical frame 6. The fixing plate 24 is fixed to the partition 9 in such a manner that the fixing plate 24 is positioned in the vicinity of a corner formed by the outer surface and the partition 9 (wall portion).
Further, on the surface of the shielding plate 20 on the side where the bent portion 22 of the substrate portion 21 rises (the surface side covering the door bottom of the closed sliding door), an appropriate place (single or plural places) in the longitudinal direction of the shielding plate 20 may be used. In general, the guide roller 25 is rotatably provided so as to be able to contact the back surface of the sliding door when the sliding door is opened and closed. The guide roller 25 is made of an appropriate material having wear resistance. Although the support structure of the guide roller 25 is not illustrated, it is not particularly limited.

(Lock mechanism)
The shielding plate 20 can be fixed to a predetermined position on the entrance / exit side by a lock mechanism 30. The predetermined position on the entrance / exit side is a position where the shielding plate 20 is not separated from and touching the sliding door 10 when the sliding door 10 is opened / closed. In this embodiment, the shielding plate 20 (substrate portion 21) is a partition. 9 and the clearance T1 to the back of the sliding door 10, and the substrate portion 21 is in a state of being substantially parallel to the partition 9 or the sliding door 10.
As the lock mechanism 30, various structures such as mechanical means and electric means using an electromagnet can be applied. In this embodiment, mechanical means are used.
FIGS. 6A and 6B are explanatory views showing a fixed state of the shielding plate 20 by the lock mechanism 30, where FIG. 6A is a front view and FIG. 6B is a plan view. FIGS. 7A and 7B are explanatory views showing a state in which the shielding plate 20 is released from being locked by the locking mechanism 30. FIG. 7A is a front view and FIG. 7B is a plan view.
That is, as shown in FIGS. 6 and 7, a hook-like locking portion 21 a is formed to protrude on the back surface of the substrate portion 21 of the shielding plate 20 (on the opposite side to the direction in which the bent portion 22 stands), Inside the lock mechanism 30, a lock bar 31 that can be engaged with and disengaged from a locking portion 21 a inserted into the lock mechanism 30 is provided. When the lock bar 31 is locked to the locking portion 21a, the shielding plate 20 is fixed at a predetermined position.

(Release mechanism)
Further, the fixing of the shielding plate 20 at a predetermined position by the lock mechanism 30 is released in conjunction with a sensor (thermal sensor, smoke sensor, etc.), a thermal fuse, etc. (not shown) in the event of a fire.
This release mechanism can be configured using an actuator such as a solenoid. For example, the lock bar 31 of the lock mechanism 30 is actuated by a solenoid that works in conjunction with a sensor or a thermal fuse, and unlocks the locking portion 21a.
In addition to the release mechanism in the event of a fire, a mechanism (selection means that does not activate the lock mechanism) that can arbitrarily release the lock mechanism 30 in a normal state is provided regardless of interlocking with a sensor or the like.

(Operation of shielding plate)
With the lock mechanism and the release mechanism, the shield plate 20 can be fixed at a predetermined position by the lock mechanism 30 during normal use. In addition, in the event of a fire, the lock mechanism 30 is released and the shield plate 20 is activated.
The operation of the shielding plate 20 is a movement that rotates from a predetermined position on the entrance / exit side toward the sliding door 10 side. With this rotation, as shown in FIG. 5B, in the closed state of the sliding door 10, the gap S formed between the sliding door 10 and the opening O serving as the entrance / exit is closed by the shielding plate 20, The door bottom 13 of the closed sliding door and the exit corner (corner) 13a of the door bottom opposite to the opening (the front side of the sliding door 10) are covered by the shielding plate 20.
The operation of the shielding plate 20 may employ a configuration using a driving means such as a drive motor. In this embodiment, the shielding plate 20 is rotated from the predetermined position on the entrance / exit side toward the sliding door 10 side. The spring force to be moved is energized. In this state, the shielding plate 20 is fixed to the lock mechanism 30 at a predetermined position on the entrance / exit side. Therefore, when the fixation by the lock mechanism 30 is released, the shielding plate 20 is automatically rotated from the predetermined position on the entrance / exit side toward the sliding door 10 by the spring force. In addition, although illustration of the biasing means by the spring with respect to the shielding plate 20 is abbreviate | omitted, the structure is not limited.

(Description of operation of shielding plate of embodiment)
FIGS. 6A and 6B are explanatory views showing a fixed state of the shielding plate 20 by the lock mechanism 30, where FIG. 6A is a front view and FIG. 6B is a plan view. FIGS. 7A and 7B are explanatory views showing a state in which the shielding plate 20 is released from being locked by the locking mechanism 30. FIG. 7A is a front view and FIG. 7B is a plan view.
FIG. 6 shows a state in which the shielding plate 20 is fixed at a predetermined position by the lock mechanism 30 in a normal state. FIG. 7 shows a state in which the shield plate 20 is not fixed at a predetermined position by the lock mechanism 30 during a fire or the like.
As described above, the hook-shaped locking portion 21 a is formed to protrude from the back surface of the substrate portion 21 of the shielding plate 20. Reference numeral 21 b is an auxiliary piece for fixing the locking portion 21 a to the substrate portion 21. In the normal state shown in FIG. 6, the locking portion 21 a is locked to the lock bar 31 provided inside the lock mechanism 30. The shielding plate 20 is biased with a spring force that rotates from the predetermined position on the entrance / exit side toward the sliding door 10 side.
In the event of a fire, the lock bar 31 of the lock mechanism 30 rotates in conjunction with the sensor and the thermal fuse (shown by an arrow in FIG. 6A). As a result, as shown in FIG. 21a is released (the same applies when the release of fixing by the lock mechanism 30 is selected in the normal state). Then, since the shielding plate 20 is biased by a spring force that rotates from a predetermined position on the entrance / exit side toward the sliding door 10 side, the shielding plate 20 is moved from the predetermined position on the entrance / exit side to the sliding door 10 side by the spring force. Is automatically rotated (indicated by an arrow in FIG. 6B), thereby rotating about 90 ° from the original predetermined position as shown in FIG.
Further, in order to return the shield plate 20 to the fixed state (initial state) by the lock mechanism 30 shown in FIG. 6A, as shown in FIG. 8A, the lock bar 30 is interlocked with a sensor or a thermal fuse. In addition to returning to the original position, the shielding plate 20 may be manually rotated as indicated by the arrow in FIG. 8B to return to a predetermined position, and the locking portion 21 a may be locked to the lock bar 30.

(Explanation of operations in relation to opening and closing of sliding doors)
5A and 5B are plan views of the sliding door 10 in a closed state, in which FIG. 5A shows a state in which the shielding plate 20 is fixed at a predetermined position by the locking mechanism 30, and FIG. 5B shows a state of the shielding plate 20 by the locking mechanism 30. The state in which the fixing at the predetermined position is released is shown.
From the state of FIG. 5 (a), the shielding plate 20 is actuated to turn 90 ° from the predetermined position on the entrance / exit side toward the sliding door side and come into contact with the door bottom 13 to reach the state of FIG. 5 (b). In the closed state of the sliding door 10, the gap S formed between the sliding door 10 and the opening O (vertical frame 6) serving as the doorway is closed, and the door bottom 13 of the closed sliding door 10 and the opening And a corner 13a of the door butt 13 on the opposite side is covered with a shielding plate 20, which effectively prevents flame, smoke, and heat from entering the adjacent room during a fire, and the door butt portion of the sliding door 10 Heating to 13 can be suppressed.
In addition, the recess 14 in which the guide roller 25 is loosely fitted is formed in the door butt 13, and there is no trouble when the door butt 13 of the sliding door 10 with the shielding plate 20 closed is covered.

FIG. 9 is a plan view of the sliding door 10 in an opened state. FIG. 9A shows a state in which the shielding plate 20 is fixed at a predetermined position by the locking mechanism 30, and FIG. 9B shows a state of the shielding plate 20 by the locking mechanism 30. The state in which the fixing at the predetermined position is released is shown.
From the state shown in FIG. 9A, the shielding plate 20 is operated to rotate from a predetermined position on the entrance / exit side toward the sliding door side, whereby the state shown in FIG. 9B is obtained. At this time, the shielding plate 20 hits the back surface of the sliding door 10, but the guide that can contact the back surface of the sliding door when the sliding door is opened and closed on the surface side of the shielding plate 20 that covers the door bottom 13 of the closed sliding door 10. Since the roller 25 is provided, the bent portion 22 of the shielding plate 20 is prevented from coming into contact with the back surface of the sliding door 10, and the sliding door 10 is smoothly opened and closed without being damaged when the sliding door moves. And if the sliding door 10 is closed from the state shown in FIG.9 (b), the shielding plate 20 will further rotate toward the sliding door side, and will be in the state shown in FIG.5 (b).
It should be noted that the state in which the shielding plate 20 is unfixed at the predetermined position in the closed state and the open state of the sliding door is arbitrarily locked in the case of being released by the lock mechanism 30 during a fire and in the normal use. There are two ways to cancel 30.
If the shielding plate 20 is operated by releasing the fixation by the lock mechanism 30 in the event of a fire, the shielding plate 20 will not operate every time the sliding door 10 is opened and closed during normal use. Is guaranteed. Also, if you choose to release the lock mechanism during normal use, the shielding plate will rotate following the opening and closing of the sliding door, so the shielding plate will operate not only in the event of a fire but also during normal operation. Sure.

<Fire protection system on the door side>
The fire prevention device 2 on the door end side is provided at the vertical side position on the door tip side of the opening O serving as the entrance and exit so as to be rotatable about the vertical direction as an axis, and the structure thereof is a fire protection device on the door bottom side. There are many parts in common with Basic.
(Shield plate)
The shape, structure, operation, material, etc. of the shielding plate 40 are basically the same as those of the shielding plate 20 of the door-side fire protection device 1. Therefore, the overlapping description is omitted as appropriate.
As shown in FIG. 5, the shielding plate 40 is provided at a position substantially symmetrical to the shielding plate 20 at the entrance / exit. The main difference is that no guide roller is provided.
The shielding plate 40 includes a substrate portion 41 having a height H corresponding to the height of the sliding door 10 (see FIG. 1) and a width W3 (see FIG. 5) larger than the thickness W1 of the sliding door 10, and the width of the substrate portion 41. It has a bent portion 42 bent substantially at a right angle at the distal end portion in the direction, and is formed in an L-shaped cross section.
The shielding plate 40 is provided at the end on the opposite side to the bent portion 42 so as to be rotatable about the vertical direction at the vertical side position on the door bottom side of the opening O. In the illustrated example, the shielding plate 40 is combined with a fixed plate 44 that forms a pair with the substrate portion 41 to form a hinge having a rotating portion (axial center) 43, and the rotating portion 43 is a vertical frame 6. The fixing plate 44 is fixed to the partition 9 in such a manner that the fixing plate 44 is positioned in the vicinity of the corner of the corner formed by the outer surface and the partition 9 (wall portion).

(Lock mechanism / Release mechanism)
Since the lock mechanism 30 and its release mechanism are not particularly different from the fire protection device 1 on the door bottom side, description thereof is omitted. The locking part 41 a of the shielding plate 40 corresponds to the locking part 21 a of the shielding plate 20.
Similarly to the fireproof device 1 on the door bottom side, the shielding plate 40 is biased with a spring force that rotates from the predetermined position on the doorway side toward the sliding door 10 side. The predetermined position on the entrance / exit side is such that the substrate portion 41 of the shielding plate 40 is substantially parallel to the partition 9. And it can be fixed to the predetermined position by the lock mechanism 30. Therefore, when the fixation by the lock mechanism 30 is released, the shielding plate 40 is automatically rotated from the predetermined position on the entrance / exit side toward the sliding door 10 by the spring force.

(Description of operation)
5A and 5B are plan views of the sliding door 10 in a closed state, in which FIG. 5A shows a state in which the shielding plate 40 is fixed at a predetermined position by the lock mechanism 30, and FIG. 5B shows the state of the shielding plate 40 by the lock mechanism 30. The state in which the fixing at the predetermined position is released is shown.
From the state of FIG. 5 (a), the shielding plate 40 is actuated to turn 90 ° from a predetermined position on the entrance / exit side toward the sliding door side and come into contact with the door edge 15 to reach the state of FIG. 5 (b). In the closed state of the sliding door 10, the gap S <b> 2 formed between the sliding door 10 and the opening O (vertical frame 6) serving as the doorway is closed, and the door tip 15 of the closed sliding door 10 and the opening And the corner 15a of the door tip 15 on the opposite side is covered with the shielding plate 20, thereby effectively preventing the entry of flame, smoke, and heat into the adjacent room in the event of a fire. Heating to can be suppressed.
The above operation is the same when the sliding door 10 is open. In this case, the outer surface of the vertical frame 6 serves as a stopper when the shielding plate 40 is rotated.
It should be noted that the state in which the shielding plate 20 is unlocked at a predetermined position includes two cases: the case where the locking mechanism 30 is released during a fire and the case where the locking mechanism 30 is arbitrarily released during normal use. The point where there is a street is the same as the fire protection device 1 on the door bottom side.

<Fire protection device on the inner side of the vertical frame>
The fire protection devices 3 and 3 on the inner surface side of the vertical frame are provided at the end portions of the inner surfaces of the vertical frames 6 and 6 forming the opening O so as to be rotatable about the vertical direction as an axis. The structure has many parts which are basically in common with the fire prevention device 1 on the door end side and the fire prevention device 2 on the door bottom side. In the illustrated example, it is provided on both the left and right sides, that is, on both sides of the door tip side and the door bottom side, but may be provided only on one side as necessary.
(Shield plate)
The structure, operation, material, and the like of the shielding plate 50 are basically the same as those of the shielding plate 20 of the door-side fire prevention device 1 described above, and redundant description will be omitted as appropriate.
As shown in FIG. 5, the shielding plate 50 is formed by a flat substrate portion 51 having a height (refer to FIG. 4) substantially equivalent to the height of the sliding door 10, and is shielded by the fire protection device 1 on the door bottom side. The difference is that there is no bent portion 22 like the plate 20. The width | variety of the board | substrate part 51 is about 4-7 cm normally. The point provided with the guide roller 55 is the same as that of the fire protection device 1 on the door bottom side.
The shielding plate 50 is provided at the end of the inner surface of the vertical frame 6 forming the opening O so as to be rotatable about the vertical direction as an axis. In the illustrated example, the shielding plate 50 is combined with a fixed plate 54 that is paired with the substrate portion 51 to form a hinge having a rotating portion (axial center) 53, and the rotating portion 53 is a vertical frame 6. The fixing plate 54 is fixed to the vertical frame 6 in such a manner that the fixing plate 54 is positioned in the vicinity of the corner formed by the inner surface and the sliding door 10.

(Lock mechanism / Release mechanism)
Since the lock mechanism 30 and its release mechanism are not particularly different from the fire protection device 1 on the door bottom side, description thereof is omitted. The locking part 51 a of the shielding plate 50 corresponds to the locking part 21 a of the shielding plate 20.
Similarly to the fireproof device 1 on the door bottom side, the shielding plate 50 is biased with a spring force that rotates from the predetermined position on the entrance / exit side toward the sliding door 10 side. The predetermined position on the entrance / exit side is a position where the shielding plate 50 (substrate part 51) is along the inner surface of the vertical frame 6. In this embodiment, a recess is formed at the inner surface end of the vertical frame 6. In this recess, the shielding plate 50 is placed in a position along the inner surface so that it does not protrude. And it can be fixed to the predetermined position by the lock mechanism 30. Therefore, when the fixation by the lock mechanism 30 is released, the shielding plate 50 is automatically rotated from the predetermined position on the entrance / exit side toward the sliding door 10 by the spring force.

(Description of operation)
5A and 5B are plan views of the sliding door 10 in a closed state, in which FIG. 5A shows a state in which the shielding plate 50 is fixed at a predetermined position by the lock mechanism 30, and FIG. 5B shows the state of the shielding plate 50 by the lock mechanism 30. The state in which the fixing at the predetermined position is released is shown.
From the state of FIG. 5 (a), the shielding plate 50 is actuated to turn 90 ° from the predetermined position on the entrance / exit side toward the sliding door side and come into contact with the back surface of the sliding door 10 to obtain the state of FIG. 5 (b). In the closed state of the sliding door 10, the gap S <b> 3 formed between the sliding door 10 and the opening O serving as the entrance / exit is closed, thereby preventing flame, smoke, and heat from entering the adjacent room during a fire. Can be effectively prevented.
The above operation is the same when the sliding door 10 is open. In this case, it is good to provide the stopper which controls the rotation angle to about 90 degrees about the shielding plate 50 of the fire prevention apparatus 3 of the vertical frame inner surface side located in the door end side.
It should be noted that the state in which the shielding plate 50 is unlocked at a predetermined position includes two cases: the case where the locking mechanism 30 is released during a fire, and the case where the locking mechanism 30 is arbitrarily released during normal use. It is the same as the fire protection device 1 on the door bottom side in that there is a street. However, it is easy to get in the way when the shield plate 50 is unlocked during normal use. Therefore, during normal use, the shield plate 50 is fixed at a predetermined position by the lock mechanism 30. At the same time, it is desirable to select that the shielding plate 50 is activated by releasing the fixation by the lock mechanism 30 in the event of a fire.

<Fire protection device located on the inner surface of the horizontal frame>
The fire protection device 4 located on the inner surface of the horizontal frame 7 is provided at the end of the inner surface of the horizontal frame 7 forming the opening O so as to be rotatable about the horizontal direction as an axis. The structure has many parts in common with the fire protection device 3 on the inner surface side of the vertical frame. Unlike the fire protection device 3 on the inner side of the vertical frame, the shielding plate 60 of the fire protection device 4 located on the inner surface of the horizontal frame 7 is greatly different in that it is provided to be rotatable about the horizontal direction as an axis.
(Shield plate)
The structure, operation, material, and the like of the shielding plate 60 are basically the same as those of the shielding plate 50 of the fire protection device 3 positioned on the inner surface of the vertical frame 6 described above, and redundant description will be omitted as appropriate.
The shielding plate 50 is formed by a flat board portion 61 having a lateral length corresponding to the width of the opening O (see FIG. 4). As shown in FIG. There is no bent portion 22 at the tip portion like the shielding plate 20 in FIG. The width | variety of the board | substrate part 61 is about 4-7 cm normally. The point provided with the guide roller 65 is the same as that of the fire protection device 1 on the door bottom side. However, the rotation axis of the guide roller 65 is in the width direction of the shielding plate 60.
The shielding plate 60 is provided at the end of the inner surface of the horizontal frame 7 forming the opening O so as to be rotatable about the horizontal direction as an axis. In the illustrated example, the shielding plate 60 is combined with a fixed plate 64 that forms a pair with the substrate portion 61 to form a hinge having a rotating portion (axial center) 63, and the rotating portion 63 is a horizontal frame 7. The fixing plate 64 is fixed to the horizontal frame 6 in such a manner that the fixing plate 64 is positioned in the vicinity of the corner formed by the inner surface and the sliding door 10.

(Lock mechanism / Release mechanism)
Since the lock mechanism 30 and its release mechanism are not particularly different from the fire protection device 1 on the door bottom side, description thereof is omitted. The locking part 61 a of the shielding plate 60 corresponds to the locking part 21 a of the shielding plate 20.
Similarly to the fireproof device 1 on the door bottom side, the shielding plate 60 is biased with a spring force that rotates from the predetermined position on the doorway side toward the sliding door 10 side. The predetermined position on the entrance / exit side is a position where the shielding plate 60 (substrate part 61) is along the inner surface of the horizontal frame 7, and in this embodiment, a recess is formed at the inner surface end of the horizontal frame 7, In this recess, the shielding plate 60 is placed in a position along the inner surface so that it does not protrude. And it can be fixed to the predetermined position by the lock mechanism 30. Therefore, when the fixation by the lock mechanism 30 is released, the shielding plate 60 is automatically rotated from the predetermined position on the entrance / exit side toward the sliding door 10 by the spring force.

(Description of operation)
FIG. 10 is a side view (cross section) of the sliding door 10 in the closed state, showing a state in which the shielding plate 60 is fixed at a predetermined position by the lock mechanism 30, and FIG. 11 is a side view (cross section) of the sliding door 10 in the closed state. It is a figure and shows the state where fixation in the predetermined position of shielding plate 60 by lock mechanism 30 was canceled.
From the state of FIG. 10, the shielding plate 60 is operated to rotate 90 ° from the predetermined position on the entrance / exit side toward the sliding door side and abut against the back surface of the sliding door 10, so that the state of FIG. In the closed state, the gap S4 formed between the sliding door 10 and the opening O serving as the entrance / exit is closed, thereby effectively preventing flame, smoke, and heat from entering the adjacent room in the event of a fire. it can.
The above operation is the same when the sliding door 10 is open. In this case, it is preferable to provide a stopper that restricts the rotation angle of the shielding plate 60 to about 90 °.
It should be noted that the state in which the shielding plate 60 is fixed at a predetermined position is released when the locking mechanism 30 is released in a fire and when the locking mechanism 30 is arbitrarily released during normal use. It is the same as the fire protection device 1 on the door bottom side in that there is a street. However, it is easy to get in the way when the shielding plate 60 is unlocked during normal use. Therefore, during normal use, the shielding plate 60 is fixed at a predetermined position by the lock mechanism 30. At the same time, it is desirable to select that the shielding plate 60 is activated by releasing the fixation by the lock mechanism 30 in the event of a fire.

<Fire protection device located on the floor>
The fire prevention device 5 located on the floor is provided on the floor (the back side of the sliding door 10) forming the opening O so as to be rotatable about the horizontal direction as an axis. The structure has many parts in common with the fire protection device 4 located on the inner surface of the horizontal frame. The fire prevention device 4 located on the inner surface of the horizontal frame is reversed in the vertical direction, and is greatly different in that it is positioned substantially symmetrically in the vertical direction.
(Shield plate)
The structure, operation, material, etc. of the shielding plate 70 of the fire protection device 5 located on the floor are basically the same as those of the shielding plate 60 of the fire protection device 4 located on the inner surface of the horizontal frame 7, and overlapping explanations will be given. Omitted where appropriate.
The shielding plate 70 is formed by a flat board portion 71 having a lateral length (see FIG. 4) corresponding to the width of the opening O, and as shown in FIG. There is no bent portion 22 at the tip portion like the shielding plate 20 in FIG. The width | variety of the board | substrate part 71 is about 4-7 cm normally. The point provided with the guide roller 75 is the same as that of the fire protection device 1 on the door bottom side. However, the rotation axis of the guide roller 75 is in the width direction of the shielding plate 70.
The shielding plate 70 is provided on the floor (the back side of the sliding door 10) forming the opening O so as to be rotatable about the horizontal direction as an axis. In the illustrated example, the shielding plate 70 is combined with a fixed plate 74 that forms a pair with the substrate portion 71 to form a hinge having a rotating portion (axial center) 73, and the rotating portion 73 is placed on the floor portion. The fixing plate 74 is fixed to the concave portion formed in the floor portion in such a manner that the fixing plate 74 is located in the formed concave portion and in the vicinity of the corner formed by the concave portion and the sliding door 10.

(Lock mechanism / Release mechanism)
Since the lock mechanism 30 and its release mechanism are not particularly different from the fire protection device 1 on the door bottom side, description thereof is omitted. The locking part 71 a of the shielding plate 70 corresponds to the locking part 21 a of the shielding plate 20.
Similarly to the fireproof device 1 on the door bottom side, the shielding plate 70 is biased with a spring force that rotates from the predetermined position on the doorway side toward the sliding door 10 side. The predetermined position on the entrance / exit side is a position where the shielding plate 70 (substrate part 71) is along the floor, and in this embodiment, a recess is formed in the floor, in which the shielding plate 70 is It fits in a position along the recess so that it does not protrude. And it can be fixed to the predetermined position by the lock mechanism 30. Therefore, when the fixation by the lock mechanism 30 is released, the shielding plate 70 is automatically rotated from the predetermined position on the entrance / exit side toward the sliding door 10 by the spring force.

(Description of operation)
FIG. 10 is a side view (cross section) of the sliding door 10 in the closed state, showing a state in which the shielding plate 70 is fixed at a predetermined position by the lock mechanism 30, and FIG. 11 is a side view (cross section) of the sliding door 10 in the closed state. It is a figure and shows the state where fixation in the predetermined position of shielding plate 70 by lock mechanism 30 was canceled.
From the state of FIG. 10, the shielding plate 70 is operated to rotate 90 ° from the predetermined position on the entrance / exit side toward the sliding door side and contact the back surface of the sliding door 10, so that the state of FIG. In the closed state, the gap S5 formed between the sliding door 10 and the opening O serving as the entrance / exit is closed, thereby effectively preventing flame, smoke, and heat from entering the adjacent room in the event of a fire. it can.
The above operation is the same when the sliding door 10 is open. In this case, it is preferable to provide a stopper for restricting the rotation angle of the shielding plate 70 to about 90 °.
It should be noted that the state in which the shielding plate 70 is unlocked at a predetermined position includes two cases: the case where the locking mechanism 30 is released during a fire and the case where the locking mechanism 30 is arbitrarily released during normal use. The same is true for streets. However, it is easy to get in the way when the shielding plate 70 is unlocked during normal use. Therefore, during normal use, the shielding plate 70 is fixed at a predetermined position by the lock mechanism 30. At the same time, it is desirable to select that the shielding plate 70 is activated by releasing the fixation by the lock mechanism 30 in the event of a fire.

It is a front view of the entrance / exit in the non-operation state of a shielding plate. It is a front view of the entrance / exit in the operation state of a shielding plate. It is a rear view of the entrance / exit in the non-operation state of a shielding plate. It is a rear view of the entrance / exit in the operating state of a shielding plate. FIG. 2 is a plan sectional view schematically showing an entrance / exit part, in which (a) shows a state in which the shielding plates 20, 40, 50 are fixed at predetermined positions by the locking mechanism 30, and (b) shows a shielding plate by the locking mechanism 30. The state in which the fixed positions 20, 40, and 50 are released is shown. It is explanatory drawing which shows the fixed state of the shielding plate 20 by the locking mechanism 30, (a) is a front view, (b) is a top view. It is explanatory drawing which shows the state by which fixation of the shielding plate 20 by the locking mechanism 30 was cancelled | released, (a) is a front view, (b) is a top view. It is explanatory drawing of the locking mechanism 30, (a) is a front view, (b) is a top view. FIG. 6 is a plan view of the sliding door 10 in an open state, where (a) shows a state in which the shielding plate 20 is fixed at a predetermined position by the locking mechanism 30, and (b) shows that the shielding plate 20 is fixed at a predetermined position by the locking mechanism 30. Indicates the released state. FIG. 4 is a side view (cross-sectional view) of the sliding door 10 in a closed state, and shows a state in which the shielding plates 60 and 70 are fixed at predetermined positions by the lock mechanism 30. FIG. 5 is a side view (cross-sectional view) of the sliding door 10 in a closed state, and shows a state in which the fixing of the shielding plates 60 and 70 by the lock mechanism 30 at a predetermined position is released.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fire prevention device (to the door bottom side) 2 Fire prevention device (to the door end side) 3 Fire prevention device (on the inner surface side of the vertical frame) 4 Fire protection device (located on the inner surface of the horizontal frame) 5 Fire protection device (located on the floor) 6 Vertical frame 7 Horizontal frame 9 Partition 10 Sliding door 13 Door bottom 13a Outer corner of the door bottom opposite the opening 15 Door tip 20, 40, 50, 60, 70 Shield plate 21, 41, 51, 61, 71 Substrate Part 22, 42 Bent part 25, 45, 55, 65, 75 Guide roller 30 Lock mechanism O Opening S, S2, S3, S4, S5 Clearance

Claims (8)

Comprising a shielding plate that closes a gap formed between the sliding door and the opening serving as the doorway in the closed state of the suspension type sliding door;
The shielding plate has a height corresponding to the height of the sliding door and a width larger than the thickness of the sliding door, has a bent portion at the front end in the width direction, and is formed in an L-shaped cross section, and is opposite to the bent portion. Is provided at the vertical side position of the opening on the door butt side of the opening so as to be rotatable about the vertical direction as an axis,
At least in the event of a fire, the shielding plate is actuated to rotate from a predetermined position on the entrance / exit side toward the sliding door, so that, in the closed state of the sliding door, the door butt of the closed sliding door and the door butt on the opposite side of the opening A hanging type fireproof device for sliding doors configured to cover the protruding corner of the sliding door with the shielding plate. A locking mechanism capable of fixing the shielding plate at a predetermined position on the entrance / exit side, and a mechanism for releasing the fixing by the locking mechanism in the event of a fire,
2. The configuration according to claim 1, wherein the shielding plate can be fixed at a predetermined position by the locking mechanism during normal use, and the shielding plate is activated by releasing the fixing by the locking mechanism in the event of a fire. The fireproof device for a hanging type sliding door as described.   The locking mechanism is configured to fix the shielding plate at a predetermined position on the entrance / exit side in a state where a spring force that rotates the shielding plate toward the sliding door is biased to the shielding plate. Item 3. The hanging type sliding door fire prevention device according to Item 2. The sliding door comprises a self-closing device;
A mechanism capable of releasing fixation by the lock mechanism;
By selecting to release the lock mechanism during normal use, the shield plate is configured to rotate following the opening and closing of the sliding door, and the door edge of the closed sliding door of the shielding plate is The suspension-type fireproof device for a suspended sliding door according to claim 3, further comprising a guide roller that can contact the back surface of the sliding door when the sliding door is opened and closed. Comprising a shielding plate that closes a gap formed between the sliding door and the opening serving as the doorway in the closed state of the suspension type sliding door;
The shielding plate has a height corresponding to the height of the sliding door and a width larger than the thickness of the sliding door, has a bent portion at the front end portion in the width direction, and is formed in an L-shaped cross section. At the end, the vertical side of the opening on the door side is provided so as to be pivotable about the vertical direction,
At least in the event of a fire, the shielding plate is actuated to rotate from a predetermined position on the entrance / exit side toward the sliding door side, so that in the closed state of the sliding door, the door tip of the closed sliding door and the door tip on the opposite side of the opening A hanging type fireproof device for sliding doors configured to cover the protruding corner of the sliding door with the shielding plate. Comprising a shielding plate that closes a gap formed between the sliding door and the opening serving as the doorway in the closed state of the suspension type sliding door;
The shielding plate is provided at the end of the inner surface of the vertical frame forming the opening so as to be rotatable about the vertical direction as an axis.
At least in the event of a fire, the shielding plate operates and rotates from the position along the inner surface of the vertical frame toward the sliding door, so that the shielding plate substantially contacts the back of the closed sliding door in the closed state of the sliding door. The suspension type fireproof device for sliding doors configured as described above. Comprising a shielding plate that closes a gap formed between the sliding door and the opening serving as the doorway in the closed state of the suspension type sliding door;
The shielding plate is provided at the end of the inner surface of the horizontal frame forming the opening so as to be rotatable about the horizontal direction as an axis.
At least in the event of a fire, the shielding plate operates and rotates from the position along the inner surface of the horizontal frame toward the sliding door, so that the shielding plate substantially contacts the back of the closed sliding door in the closed state of the sliding door. The suspension type fireproof device for sliding doors configured as described above. Comprising a shielding plate that closes a gap formed between the sliding door and the opening serving as the doorway in the closed state of the suspension type sliding door;
The shielding plate is provided on the floor forming the opening so as to be rotatable about a horizontal direction as an axis.
At least in the event of a fire, the shielding plate operates and rotates from the position along the floor toward the sliding door, so that the shielding plate substantially contacts the back of the closed sliding door in the closed state of the sliding door. A fireproof device for a suspended sliding door.

Images