JP5832808B2 - Emergency door closing system - Google Patents

Description

  The present invention relates to a system for closing a lateral door provided at an entrance of a building in an emergency.

  Conventionally, there is a horizontal door (hereinafter also simply referred to as “door”) as a door provided at the entrance of a building. The horizontal door is opened and closed by an opening / closing device in the horizontal direction from the center. For example, there is a mechanical parking facility as a building having such a lateral door. Hereinafter, this mechanical parking facility will be described as an example of a building having a lateral door.

  As a horizontal door provided in a mechanical parking facility, there is an entrance / exit door provided in a vehicle entry part. This door is opened and closed as necessary by an opening and closing device provided in the mechanical parking facility. In the opening / closing device, when the door is opened in normal operation, the door is opened by releasing the brake and rotating the drive source, and the brake is braked in the opened state. When the door is closed, the brake is released and the drive source is rotated to close the door, and the brake is applied in the closed state.

  On the other hand, the mechanical parking facility is provided with a fire extinguishing device in case a fire occurs in the mechanical parking device installed inside the parking tower. This fire extinguisher is equipped with a predetermined amount of fire extinguishing agent (for example, an inert gas such as carbon dioxide) according to the size of the mechanical parking facility.

  And at the time of fire extinguishing work accompanying generation | occurrence | production of a fire, after closing all the ventilation openings in a parking tower for fire extinguishing effect and efficiency improvement, a fire extinguisher is injected. In other words, in order to efficiently extinguish fire with extinguishing agent by closing the ventilation opening, ventilation louvers provided at the top of the parking tower, open side doors, etc. are all closed before injecting extinguishing agent and injected Fire extinguishing agent is prevented from escaping outside the parking tower.

  For this reason, the mechanical parking facility has a weight that closes the door by releasing the brake of the drive source of the switchgear even if the door switchgear becomes uncontrollable due to burnout of the control cable or control panel due to fire. Is provided. Then, the operation stroke of the door is detected by the weight coming into contact with the limit switches provided at the rising end and the falling end of the weight, and when the door is open, the brake of the driving source is released, so that the weight of the weight The door is designed to be closed.

  In addition, as this type of prior art, for example, a rope fixed to one door that is opened and closed laterally by an opening / closing device is extended to the side of the other door, and fixed to a weight disposed on the side of the other door. In addition, there is a door closing device in which the weight is supported in a normal state and the door is closed by the weight of the weight by releasing the weight in an abnormal state (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 57-52973

  By the way, when the door is closed by the weight of the weight as described above, the weight moves in the vertical direction with respect to the door moving in the lateral direction, so the weight is arranged on the side outside the operating range of the door. Otherwise, it will abut. Therefore, in the case of a mechanical parking facility, a weight is arranged in a parking tower at the side of the door operating range, and the weight is raised and lowered in conjunction with the opening and closing operation of the door by the opening and closing mechanism.

  However, in order to place the weight outside the operating range of the door and hang it down and move it up and down in conjunction with the opening and closing operation of the door, a relatively large space is required on the side of the door. Therefore, a guide member for guiding the raising and lowering of the head is required. In addition, cords (chains, wire ropes, etc.) that raise and lower the weight must be connected to the door opening and closing mechanism, and the opening and closing of the door must be linked to the lifting and lowering of the weight, requiring complicated adjustment work during installation. Become. In addition, the opening / closing mechanism must be designed so that the weights can be interlocked, and the design of the drive system is limited.

  Thus, in the conventional mechanism that closes the door in the event of a fire, etc., a space for placing a weight on the side of the door is necessary, so space efficiency is poor, and in addition, in conjunction with the drive system of the door, The structure is complicated, and complicated work is required during installation, resulting in poor workability.

  In addition, in the case of the above-mentioned Patent Document 1, a space for placing the weight on the side of the door is necessary, so that the space efficiency is poor, and depending on the door opening position, the door suddenly moves when the weight is unsupported. There is also a risk that the door will not be closed smoothly in the event of a fire.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an emergency closing system for a lateral door that has a simple structure and a high degree of freedom in designing a drive system by arranging a weight in the frame of the door.

  In order to achieve the above object, the present invention is provided with a lateral door at an entrance, and the lateral door is configured by a pair of doors that opens and closes to the left and right with a center as a boundary. An emergency closing system for a lateral sliding door configured to open and close the left and right doors in conjunction with each other by a drive mechanism driven by a drive source of the open / close device, wherein the open / close device is integrated or independent of the drive source In the normal operation, the door is opened and closed by the drive source, the brake source is released during the drive source operation, and the brake is applied when the drive source is stopped. A control circuit for independently releasing the braking device is provided, and the lateral door is fixed to one of the left and right doors, and a turning member is provided in a frame of the other door facing the other end. A cord-like body with a weight suspended from the weight, By releasing the, it is configured to urge in a direction closing the left and right door by its own weight through the cord-like body. “Rope” in this specification and claims refers to ropes such as “chain” and “wire rope”. Moreover, the door with which the right and left became a pair means the door which became a pair by each 1 sheet or each plurality. With this configuration, during normal operation, the door is opened and closed by interlocking driving by the drive source and braking device release / braking, and in the event of a fire, etc., the brake device is released to connect directly to the drive device. The left and right doors can be closed by the weight of the weight suspended from one end of the cable-like body that is not provided. And since the structure which closes the doors on either side in an emergency is provided in the frame of the doors on either side, the space efficiency can be improved.

  Further, the weight may be hung on a moving pulley provided on the other door, and the cord-like body may be hung on the moving pulley and an end thereof may be fixed to an upper portion of the door. If comprised in this way, the movement range of the weight which occupies for the height of a door becomes small, a frontage is wide with respect to a top-and-bottom direction, and a weight can be easily accommodated in the place where there is much lateral movement amount of a door.

  The cord-like body may be a wire rope, and the turning member may be constituted by a turning pulley. If configured in this way, the rope-like body that extends from one door to the other and suspends the weight can be made into a thin wire rope that has little influence even if the view is blocked, so the degree of freedom of arrangement of the viewing window Etc. can be improved. In addition, it is possible to suppress the possibility that the cord-like body of the weight actuating system separated from the drive system may cause a sagging or dripping of lubricating oil in the opening width between the doors, resulting in contamination.

  The weight includes a guide member that moves up and down along a guide rail that connects the frame portion in the vertical direction inside the door, and the guide rail also serves as a guide rail and door reinforcing member that also serves as a door reinforcing material. It may be comprised. If comprised in this way, the reinforcement member which bears an out-of-plane load of a door with an upper and lower frame can be combined with the function of a guide rail which guides the above-mentioned weight in the up-and-down direction, and only to guide the weight The arrangement (guide rail) to be arranged can be reduced.

  The weight is composed of a plurality of weight plates, and the plurality of weight plates fix a guide member that moves up and down along the guide rail and a turning member or a rope that hangs the rope. You may be connected with the supporting member provided with the rope fastener. With this configuration, the weight that becomes the load of the drive system during normal operation requires door closing force at the time of design, installation, and aged use according to the guide rail friction of the door and the finished weight of each part. Fine adjustments can be made to a minimum.

  The weight is composed of a plurality of weight plates, and the plurality of weight plates fix a guide member that moves up and down along the guide rail and a turning member or a rope that hangs the rope. It may be fitted into a basket-like support member provided with a rope clamp. Even with this configuration, the weight that becomes the load of the drive system during normal operation can be reduced by the door closing force during design, installation, and aged use according to the friction of the guide rail of the door and the finished weight of each part. Fine adjustments can be made to the minimum necessary.

  Further, the building may be a mechanical parking facility, and a lateral door provided at a vehicle entrance / exit of the mechanical parking facility may be configured to be closed in an emergency. If comprised in this way, the structure for closing a door at the time of emergency can be provided in the frame of a door, and the space for arrange | positioning a weight can be made unnecessary around a door, and it installs in the limited space. The space efficiency can be improved by effectively using the internal space around the door in the mechanical parking facility.

  According to the present invention, it is possible to configure a system that closes the door in an emergency by placing a weight in the frame of the lateral door, thereby improving the space efficiency around the door, reducing the cost by reducing the number of parts, and driving It is possible to improve the design freedom of the system, improve the workability at the time of installation, and the like.

It is a front view showing a 1st embodiment of a horizontal door opening and closing device provided with an emergency closure system concerning the present invention. It is an expanded sectional view of the II-II arrow shown in FIG. It is an III-III arrow expanded sectional view shown in FIG. It is a front view which shows the state which the horizontal sliding door opening / closing apparatus shown in FIG. 1 opened. It is a front view which shows 2nd Embodiment of the horizontal door opening / closing apparatus provided with the emergency closing system which concerns on this invention. It is a flowchart at the time of normal operation of the emergency closure system shown in FIG. It is a flowchart at the time of the fire outbreak of the emergency closure system shown in FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following embodiments, a lateral door opening / closing device 10 that opens two doors provided in the parking tower entrance / exit of a mechanical parking facility in a lateral direction from the center will be described as an example. An example in which a gear motor with an electromagnetic brake is used as a drive source will be described. Note that the concept of the front / rear / right / left direction in the document of this specification and claims corresponds to the concept of the front / rear / left / right direction in the state facing the lateral door opening / closing device 10 from the inside as shown in FIG. (The left and right sides are opposite to the state facing the mechanical parking facility from the outside).

  As shown in FIG. 1, the lateral door opening / closing device 10 according to the first embodiment is a pair of lateral doors that open and close the left door 20 and the right door 21 left and right with the center as a boundary. Supporting roller portions 22, 23, 24, and 25 are provided at two locations in the opening and closing direction on the upper portions of the doors 20 and 21, respectively. Each support roller section 22, 23, 24, 25 is provided with two rollers 35 at one place. These support roller portions 22, 23, 24, and 25 are movable in the lateral direction along the support rail 2 provided in the parking tower 1. A drive motor 12 is provided at one end of the support rail 2. The drive motor 12 is a gear motor with an electromagnetic brake, and a brake 11 (FIG. 2) as a braking device is integrated with a motor as a drive source. This drive motor 12 has an OFF brake specification in which a brake (braking device) is operated when the power is OFF.

  As shown in FIG. 2, the support rail 2 is suspended by a holding member 3 provided in the parking tower 1. The holding member 3 is provided with a holding bolt 4, and the support rail 2 is held by the holding bolt 4. The rollers 35 of the support roller portions 22, 23, 24, and 25 are supported on the upper surface of the support rail 2. The lower portions of the doors 20 and 21 slide along the rollers 6 provided on the entrance floor 5. As a result, the doors 20 and 21 can be opened and closed laterally while being suspended by the support roller portions 22, 23, 24 and 25.

  On the other hand, as shown in FIG. 1, a drive chain 14 is hung on the drive sprocket 13 of the drive motor 12. The drive chain 14 has one end connected to the support roller portion 22 of the right door 21 and the other end connected to the support roller portion 24 of the left door 20.

  A turning sprocket 15 is provided at the other end of the support rail 2. An interlocking chain 16 is hung on the turning sprocket 15. The interlocking chain 16 has one end connected to the support roller portion 23 of the right door 21 and the other end connected to the support roller portion 25 of the left door 20. In the case of such two doors 20 and 21, since the two doors 20 and 21 are configured in a single direction in the front-rear direction, the drive chain 14 and the interlocking chain 16 are arranged on the same surface in the front-rear direction in the figure. ing.

  Accordingly, when the drive motor 12 is driven and the right door 21 is opened by the drive chain 14 hung on the drive sprocket 13, the interlocking chain 16 is moved to the left via the turning sprocket 15 in conjunction with the operation of the right door 21. The door 20 is opened. Conversely, when the drive motor 12 is driven in the reverse direction and the left door 20 is closed by the drive chain 14 hung on the drive sprocket 13, the interlocking chain 16 is linked via the turning sprocket 15 in conjunction with the operation of the left door 20. The right door 21 is closed. The mechanism that opens and closes the left and right doors 20 and 21 in this manner is a drive mechanism that opens and closes the left and right doors 20 and 21 in conjunction with each other.

  Further, a limit switch (proximity switch, lever type switch) for detecting the open / close position of the left door 20 is provided above the left door 20. As this limit switch, a door closing limit switch 26 (proximity switch) for confirming that the left door 20 is closed, and a door opening limit switch 27 (proximity switch) for confirming that the left door 20 is open, An emergency door closing limit switch 28 (lever type switch) for confirming that the left door 20 is closed in the event of a fire and a fire extinguishing zone limit switch 29 (lever for confirming whether the left door 20 is located in the fire extinguishing zone in the event of a fire The type switch) is arranged at a predetermined position so as to detect the position of the left door 20 (in the figure, one is arranged at a position where it substantially overlaps on the back side). The emergency door closing limit switch 28 and the fire extinguishing zone limit switch 29 are mechanical switches, and are detected when the protruding member 36 protruding upward from the upper surface of the left door 20 comes into contact therewith. By detecting the position of the left door 20 with these limit switches 26 to 29, the position of the right door 21 interlocked with the left door 20 can also be detected. Therefore, the limit switches 26 to 29 are provided only on one door. Yes. The door closing limit switch 26 and the door opening limit switch 27 may also be configured by lever type switches.

  And the said doors 20 and 21 are provided with the structure regarding the weight 40 which closes when the doors 20 and 21 are open in the event of an emergency. The doors 20 and 21 are formed in a rectangular shape with a frame portion 31 provided around the inner surface of a door plate 30 made of a plate material. In this embodiment, the doors 20 and 21 are inside the right door 21 (may be inside the left door). A weight 40 is provided. The right door 21 is provided with two guide rail / door reinforcing members 32 that vertically connect the central portion of the rectangular frame portion 31, and a weight 40 is provided along the guide rail / door reinforcing member 32. It is designed to go up and down. The guide rail / door reinforcing member 32 guides the weight 40 as will be described later, and the weight 40 moves up and down while maintaining a predetermined gap with the door plate 30 of the right door 21. .

  Further, a suspension pulley 47 serving as a moving pulley is provided on the upper portion of the weight 40, and is suspended by a wire rope 46 as a cord-like body via a turning pulley (turning member) 34 provided on the upper portion of the right door 21. It has been. One end of the wire rope 46 is fixed to the upper portion of the left door 20, and the other end is fixed to the upper portion of the right door 21 via the turning pulley 34 and the suspension pulley 47. Therefore, the right door 21 and the left door 20 are urged in a direction to be always closed by the weight of the weight 40 through the wire rope 46.

  Thus, the emergency closing system is configured by closing the doors 20 and 21 with the weight of the weight 40 and controlling the drive motor 12 having the brake as the braking device as described later.

  Furthermore, since the weight 40 is hung on the moving pulley, the rising distance of the weight 40 can be halved with respect to the opening distance of the doors 20 and 21. Thereby, the vertical dimension of the doors 20 and 21 can be used effectively. If the door height is sufficient with respect to the required door opening width, there is no need to use a movable pulley, and a fastener (not shown) for fixing the wire rope 46 to the support member 43 is provided and the wire rope is provided. 46 is fixed.

  As described above, since the weight 40 is disposed within the frame of the right door 21, a space for providing the weight 40 outside the operation range of the doors 20 and 21 is not necessary.

  FIG. 3 is a plan view of the weight 40 as viewed from above. As described above, the two guide rail / door reinforcing members 32 are disposed so as to connect the upper and lower portions of the frame portion 31 integrally disposed on the four sides of the door plate 30. The frame portion 31 and the guide rail / door reinforcing member 32 are provided inside the door plate 30. That is, the guide rail / door reinforcing member 32 is provided in the frame as a member constituting the rigidity of the door plate 30 integrally with the frame portion 31 on the four sides, and is screwed on the inner surface of the door plate 30 at appropriate intervals or continuously. It is fixed by rivets, spot welding, adhesion, etc. As a result, the movement and deformation of the door plate 30 mainly in the out-of-plane direction are suppressed.

  Further, the guide rail / door reinforcing member 32 protrudes from the door plate 30 with an L-shaped cross section, and a guide rail portion 33 parallel to the door plate 30 is formed. The two guide rail / door reinforcing members 32 are provided such that the guide rail portions 33 face each other in plan view.

  And the said weight 40 is provided between the guide rail part 33 of the guide rail and door reinforcement member 32 so that raising / lowering is possible. The weight 40 is provided so that guide shoes 41 as guide members provided at both left and right ends sandwich the guide rail portion 33 of the guide rail / door reinforcing member 32. The guide shoe 41 is individually provided with slits 42 that are sandwiched with an appropriate gap (a gap that restricts the movement of the weight 40 in the horizontal direction and allows the movement in the vertical direction) with respect to the plate thickness of the guide rail portion 33. It has been. The guide shoe 41 restricts the movement of the weight 40 in the horizontal direction (front / rear / left / right). As described above, the weight 40 is moved up and down along the guide rail / door reinforcing member 32 inside the right door 21 and cannot be seen at all from the outer surface (outside) of the door. The material of the guide shoe 41 may be any material that can smoothly guide the lifting and lowering of the weight 40, such as plastic or metal.

  The guide shoe 41 is provided on the upper portion of the support member 43. A plurality of plate-shaped weight members 45 are stacked below the support member 43 in the vertical direction. The support member 43 and the weight member 45 are integrally fixed by a through bolt 44 penetrating in the vertical direction. As a result, the guide shoe 41, the support member 43, and the weight member 45 form an integral weight 40. By configuring the weight 40 with the plurality of weight plates 45 in this way, the weight 40, which is a load of the drive system during normal operation, can be caused by friction between the support rails 2 and the rollers 6 of the doors 20 and 21, and the finish of each component. According to the weight, it can be finely adjusted so that the closing force of the doors 20 and 21 becomes the minimum necessary at the time of design, installation, use over time, and the like.

  Further, a suspension pulley 47 is provided at the upper end of the central portion in the width direction of the weight 40. Even if the doors 20 and 21 are opened by using a wire rope (weight suspension wire) 46 as a cord-like body for suspending the weight 40, the three-way frame (the upper part of the doors 20 and 21, It can be hidden from the user directly behind the left and right frames). In addition, the wire rope 46 is less likely to hang down due to its own weight as compared with the case where a chain is used as a cord-like body, and there is no fear that the lubricating oil will be applied to a car or a person passing through the opening.

  Further, the weight 40 of this embodiment forms a weight 40 that is integrated by connecting a plurality of weight plates 45 with through bolts 44. The support member 43 is provided with a guide shoe 41. A cage-like support member (container-like member: not shown) may be used, and the weight plate 45 may be fitted therein.

  On the other hand, in this embodiment, the left door 20 is provided with a peep window 50 so that the internal operation status of the mechanical parking facility, which is basically closed during operation, can be observed from the outside. A square hole 52 is provided in a part of the reinforcing member 51 provided on the inner side of the left door 20 to provide the observation window 50. The observation window 50 in which the four sides of the meshed glass are held by the metal fittings in the square hole 52 is provided. Provided. An iron plate 54 suspended by a fuse member 53 that is melted by heat is provided above the inside of the observation window 50. The iron plate 54 is configured such that both sides thereof descend along the guide member 55 and stop in a state where they overlap at the inner position of the observation window 50.

  Therefore, when the fuse member 53 is melted by heat at the time of the fire, the observation window 50 moves down to the position where the iron plate 54 is guided by the guide member 55 and overlaps the observation window 50 and closes the inside of the observation window 50. It is like that. This prevents the extinguishing agent from leaking from the glass surface even if the observation window 50 is damaged by heat.

  FIG. 4 is a view showing a state in which the doors 20 and 21 are opened by the lateral pulling door opening and closing device 10. When the doors 20 and 21 are opened by the drive motor 12, the drive chain 14 is wound, and the support roller portion 22 provided on the upper portion of the right door 21 opens the right door 21 to the right. In conjunction with the opening of the right door 21, the left door 20 is connected to the support roller portion 23 of the right door 21 by the interlocking chain 16 connected to the support roller portion 25 of the left door 20 after being turned by the turning sprocket 15. Is opened to the left. As described above, the doors 20 and 21 are opened by the driving force of the driving motor 12 during normal operation.

  According to the emergency closing system provided in the lateral door opening and closing device 10 of the first embodiment, when the control panel power is turned off as described later in the event of a fire, the fire extinguishing device power is turned on and the door is turned on. If the drive motor 20 is open, the brake of the drive motor 12 is released and the doors 20 and 21 are closed by the weight of the weight 40. If it is confirmed that the doors 20 and 21 are closed, the fire extinguishing agent is injected. can do. Details will be described later.

  FIG. 5 is a drawing of a lateral door opening and closing device according to the second embodiment. The second embodiment is different from the first embodiment in that the observation window 50 provided in the left door 20 is provided in the right door 21. The left and right positions of the observation windows 50 provided on the doors 20 and 21 are determined by the layout of the operation panel and the like. In this second embodiment, the observation windows 50 are provided at positions where the weight 40 of the right door 21 moves up and down. It has been. In this figure, the doors 20 and 21 are shown in a closed state, and the weight 40 when the doors 20 and 21 are opened is shown by a two-dot chain line. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The horizontal sliding door of the second embodiment has the same configuration in which the weight 40 is provided inside the right door 21, but the observation window 50 is located between the guide rail / door reinforcement member 32 of the right door 21. Is provided. As described above, when the observation window 50 is provided between the guide rail / door reinforcing member 32 on which the weight 40 moves up and down, the inspection window 50 is provided on the door plate 30 side, and the inspection window 50 is located inside (back side). The weight 40 is disposed so as to move up and down. Since the configuration related to the weight 40 and the configuration related to the wire rope 46 that suspends the weight 40 are the same as those in the first embodiment, the same reference numerals are given and the description thereof is omitted. Moreover, since the structure regarding the observation window 50 is also the same as the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  According to the horizontal door opening and closing device 60 of the second embodiment configured as described above, the weight 40 that rises when the doors 20 and 21 are opened overlaps the observation window 50 at the rising end position (two points shown in the figure). Since the doors 20 and 21 at this time are in the open position, the doors 20 and 21 overlap with the three-way frame of the parking tower 1, and the weight 40 cannot be seen from the observation window 50 during the opening operation of the doors 20 and 21. .

  In this embodiment, the lower end of the weight 40 is lower than that of the lateral door opening and closing device 10 of the first embodiment. However, the height of the observation window 50 and the door 20 and 21 when opening the door The descending end of the weight 40 may be arbitrarily set depending on whether the weight 40 is not visible until the stage. Also in the second embodiment, the design is not easily damaged by using a wire rope 46 that can select a cord-like body thinner than the chain.

  Even in the emergency closing system provided in the horizontal door opening and closing device 60 of the second embodiment, when the control panel power is turned off as described later in the event of a fire, the fire extinguishing device power is turned on and the door 20 is turned on. , 21 is released, the brake 11 of the drive motor 12 is released, the doors 20, 21 are closed by the weight of the weight 40, and if it is confirmed that the doors 20, 21 are closed, a fire extinguishing agent is injected. can do. Details will be described later.

  Moreover, regardless of the horizontal door opening / closing device 10 or 60, the observation window 50 is arranged on the left door 20 or the right door 21 in accordance with the position of the operation panel (either the left or right of the entrance / exit). However, by fixing the door 21 on which the weight 40 is provided to one side and standardizing (commonization), the components related to the weight 40 can be made common, and the installation work can be made common.

  Next, the operation of the emergency closing system will be described with reference to FIGS. In the following description, operation control using the limit switches 26 to 29 in the lateral door opening and closing device 10 of the first embodiment described above will be described. In the following description, the drive motor 12 with an electromagnetic brake that operates with the brake turned off as described above will be described as an example. <Normal operation> will be described with reference to FIG. 6, and <Fire occurrence> will be described with reference to FIG.

<During normal operation> (Fig. 6)
First, during normal operation (when the door is opened), the brake 11 of the drive motor 12 is released (brake power ON) (S1). Thereafter, the drive motor 12 is rotated, the left door 20 is moved left and the right door 21 is moved right and opened (S2). At this time, it is checked whether or not the door open limit switch 27 is turned on, and this check is repeated until the door open limit switch 27 confirms that the door is open (S3).

  When the door opening limit switch 27 is turned on in (S3), the drive motor 12 is stopped and braking of the brake 11 (brake power supply OFF) is performed (S4).

  When the doors 20 and 21 are closed, the door opening limit switch 27 is replaced with the door closing limit switch 26, and similarly, the brake release of the drive motor 12, the rotation of the drive motor 12, and the brake braking are performed.

<When a fire breaks out> (Figure 7)
In the event of a fire, the doors 20 and 21 may be closed by controlling the drive motor 12 with the control panel. However, there are cases where normal control of the drive motor 12 with the control panel cannot be performed due to wiring burnout or the like. Therefore, in the following description, it is assumed that the wiring is burned out due to the occurrence of a fire, and it is assumed that the control panel is turned off and the door cannot be controlled (S10).

  When the power source of the control panel is turned off, the power source of the fire extinguisher (fire extinguisher) is turned on (S11). Then, it is checked whether or not the emergency door closing limit switch 28 is turned on (S12). Then, the brake power of the drive motor 12 is turned on until the emergency door closing limit switch 28 is turned on, and the brake 11 is released (S13). As described above, since the drive motor 12 has a power-off brake configuration, the brake 11 is released by turning on the power, and the wire rope 46 is pulled by the weight of the weight 40 by making the drive motor 12 free. The left door 20 is closed by being pulled, and the right door 21 that is interlocked by the left door 20 and the drive chain 14 is also closed.

  Accordingly, the left door 20 and the right door 21 are closed by releasing the brake of the drive motor 12, and after a predetermined time, it is turned on by checking whether or not the emergency door closing limit switch 28 in (S12) is turned on. If it is confirmed, the brake power of the drive motor 12 is turned off and the brake 11 is braked (S14). Thereby, the left and right doors 20 and 21 are closed, and the opening portion of the parking tower 1 is closed.

  On the other hand, if the control panel is turned off and the door cannot be controlled (S10), the fire extinguishing zone limit switch 29 is checked in parallel with the door closing confirmation. Is repeated. The fire extinguishing zone limit switch 29 is turned on when the doors 20 and 21 are closed to a predetermined range. When the fire extinguishing zone limit switch 29 is turned on, a fire extinguisher is injected (S16).

  In parallel with the confirmation that the door 20 (21) is closed by the weight 40 in this way, by confirming that the door 20 (21) is closed to a predetermined position and injecting a fire extinguishing agent, A fire extinguishing agent is injected almost simultaneously with the closing of the door 20 (21) so that the fire can be efficiently extinguished.

  As described above, according to the emergency closing system, since the door 40 is provided with the weight 40 for closing the doors 20 and 21 when the doors 20 and 21 are open in the event of a fire, the emergency closing system is provided. The lateral door opening and closing devices 10 and 60 having the above can be configured with high space efficiency.

  Moreover, since the left and right doors 20 and 21 can be smoothly closed by synchronizing the left and right doors 20 and 21 with the configuration in which the weight 40 is provided on one of the horizontal pulling doors 20 and 21, the number of parts can be reduced. Thus, it is possible to configure an emergency closing system for the lateral doors 20 and 21 that can reduce the cost, improve the degree of freedom of design of the drive system, facilitate the work at the time of installation, and perform stable operation.

  Moreover, according to the emergency closing system, the weight 40 that closes the doors 20 and 21 in an emergency is separated from the lateral door opening and closing device 10 that opens and closes the doors 20 and 21 like a mechanical parking facility. In addition, it is possible to improve the degree of freedom in designing the drive system and improve the workability during installation.

  Examples of mechanical parking equipment that employs the above emergency closing system include tower type (elevator type, vertical circulation type, etc.), horizontal multilayer type (horizontal circulation, box type circulation, etc.), plane reciprocation type, stacker crane Although there is a formula, etc., it is not limited to the mechanical parking facility as long as it has a horizontal door. Moreover, even if it is a building other than mechanical parking equipment, if it is a building which should close the doors 20 and 21 at the time of a fire etc., it can apply similarly and is not limited to mechanical parking equipment.

  Furthermore, in the above-described embodiment, an example of a door paired with two sheets has been described. However, the present invention can be applied to a pair of four doors with two left and right, and the number of doors is the same as that of the above-described embodiment. It is not limited.

  Moreover, the said embodiment has shown an example, The various change in the range which does not impair the summary of this invention is possible, and this invention is not limited to the said embodiment.

  The emergency door closing system according to the present invention includes a horizontal door that opens and closes to the left and right, and can be used in a building that wants to close the door in an emergency such as a fire.

1 parking tower
2 Support rail 10 Horizontal door opening and closing device 11 Brake (braking device)
12 Drive motor (drive source)
13 Drive sprocket 14 Drive chain 15 Turning sprocket 16 Interlocking chain 20 Left door (lateral door)
21 Right door (lateral door)
DESCRIPTION OF SYMBOLS 22 Support roller part 23 Support roller part 24 Support roller part 25 Support roller part 26 Door closing limit switch 27 Door opening limit switch 28 Emergency closing limit switch 29 Fire extinguishing zone limit switch 30 Door plate 31 Frame part 32 Guide rail and door reinforcement Member 33 Guide rail part 34 Turning pulley 35 Roller 40 Weight 41 Guide shoe (guide member)
42 Slit 43 Support Member 44 Through Bolt 45 Weight Material 46 Wire Rope
47 Suspension pulley (dynamic pulley)
50 inspection window 53 fuse member 54 iron plate 55 guide member 60 door opening and closing device

Claims (6)

An emergency closing system for a lateral door provided at a vehicle entrance / exit of a mechanical parking facility,
Before Symbol lateral pulling the door is constituted by a door paired to open and close the left and right to the center boundary, the lateral pulling door, left and right by a drive mechanism driven by a drive source for opening and closing device provided above the door The doors are configured to open and close in conjunction with each other,
The opening / closing device includes a braking device that is integral with or independent of the driving source. During normal operation, the door is opened and closed by the driving source, and during the driving source operation, the braking device is released, and the driving source A control circuit configured to brake the braking device when stopped, and configured to release the braking device independently in an emergency,
The lateral door is separated from a drive mechanism that is driven by a drive source of the opening / closing device, and one end is fixed to one of the left and right doors, and the other end is provided via a turning member provided in the frame of the other door. It has a cord-like body that suspends a weight that can be raised and lowered within the frame of the door ,
The emergency closing system for a lateral door, wherein the weight is configured to urge the left and right doors in the direction of closing the left and right doors through the cord-like body. The weight is hung on a moving pulley provided on the other door, the cord-like body is hung on the moving pulley, the end is fixed to the upper part of the door, and the weight is suspended by the moving pulley. The emergency closing system for a lateral door according to claim 1.   The emergency closing system for a lateral door according to claim 1 or 2, wherein the cord-like body is a wire rope, and the turning member is constituted by a turning pulley. The weight has a guide member that moves up and down along a guide rail that connects the frame portion in the vertical direction inside the door,
The emergency closing system for a lateral door according to any one of claims 1 to 3, wherein the guide rail includes a guide rail / door reinforcing member that also serves as a door reinforcing material. The weight is composed of a plurality of weight plates,
The plurality of weight plates are connected to a support member that includes a guide member that moves up and down along the guide rail, and a turning member that hangs the cord-like body or a rope fastener that fixes the cord-like body. Item 5. The emergency closing system for a horizontal sliding door according to Item 4. The weight is composed of a plurality of weight plates,
The plurality of weight plates are fitted into a cage-shaped support member that includes a guide member that moves up and down along the guide rail, and a turning member that hangs the cord-like body or a cord fastener that fixes the cord-like body. The emergency closing system for a lateral sliding door according to claim 4.

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