JP5328291B2 - Elevator door equipment - Google Patents

Description

  The present invention relates to an elevator door device, and more particularly to an interlocking rope type elevator door device.

  In general, an interlocking rope type elevator door is composed of a plurality of doors, one of which is a driving side door driven by a driving device, and the other is interlocked with the driving side door by the function of the interlocking rope. It is a driven door that opens and closes. Furthermore, the door on the driving side and the door on the driven side are each composed of a car door provided on the car side and a landing door provided on the landing side, and the door is opened and closed on the stop floor. In this case, the car door and the landing door are engaged each time to open and close at the same time.

  However, in such a configuration, if the interlocking rope breaks for some reason in the car door or the landing door, the driven side door cannot be opened and closed in conjunction with the driving side door. There is a possibility that the elevator will run with the side door open. In order to prevent such troubles, in conventional elevators, the gate switch is attached to both the drive side door and the driven side door with respect to the car door, and the drive side with respect to the landing door. A lock switch is attached to the door, and a gate switch is attached to the driven door, and it is confirmed that the elevator door is fully closed by these switches so that the elevator travels.

  As another conventional example, 2S type (2 door side opening type) or 3S type (3 door side opening type) of 2 or 3 doors opening only in one direction (one side) There is one that has proposed the above-mentioned countermeasures limited to elevator doors (for example, see Patent Document 1). In this type of door, when the door is open. The door on the driving side and the door on the driven side move in the same direction and are stored in the door pocket so that they overlap, and the door is fully opened.

  Therefore, in the conventional example described in Patent Document 1, in order to detect the overlap between the adjacent drive-side door and the driven-side door in the landing door, or the overlap between the driven-side doors, A magnetic body and a magnetic detection unit (or a light emitting unit and a light receiving unit) are provided, thereby confirming that the door is closed.

JP-A-8-2863

  However, in the prior art, one gate switch or one lock switch is attached to the landing door on each floor as in the conventional elevator described above, or the magnetic material is attached to the landing door on each floor as in Patent Document 1. There is a problem that it is necessary to newly provide a magnetic detection unit (or a light emitting unit and a light receiving unit) to detect the disconnection of the interlocking rope, resulting in an increase in cost and installation time.

  In addition, as in Patent Document 1, in a structure for detecting overlap of doors on the precondition of 2S type (2-door side opening type) or 3S type (3-door side opening type), it is natural that In particular, there is a problem in that it cannot be applied to a CO type (center opening type) elevator door in which two or four doors are separated from the center and open on both sides.

  The present invention has been made to solve such a problem, and can be applied to various types of elevator doors, and can quickly detect the disconnection of the interlocking rope without providing a detection device or the like. The purpose is to obtain a door device.

This invention relates to a elevator door device for detecting interlocking rope breakage, the drive side of the door, the insulating coated interlocking rope with wire, engaged with the driving side by the interlocking rope to the drive side of the door A driven-side door that is opened and closed in conjunction with the door , a switch that detects opening and closing of the drive-side door and / or the driven-side door, and ON / OFF, and a signal from the switch A door closing detection relay for detecting opening and closing of the driving side door and / or the driven side door, and notifying an elevator control device that controls the operation of the elevator; and a power source for driving the driving side door is constructed from a circuit connected in series, the door opening and closing detection circuit for detecting the opening and closing of the door of the drive-side and / or the driven side of the door, wherein the both ends of the door opening and closing detection circuit An elevator door apparatus characterized by detecting the interlocking rope breakage by OFF signal from the door closing detecting relay by connecting to both ends of the wire moving rope.

This invention relates to a elevator door device for detecting interlocking rope breakage, the drive side of the door, the insulating coated interlocking rope with wire, engaged with the driving side by the interlocking rope to the drive side of the door A driven-side door that is opened and closed in conjunction with the door , a switch that detects opening and closing of the drive-side door and / or the driven-side door, and ON / OFF, and a signal from the switch A door closing detection relay for detecting opening and closing of the driving side door and / or the driven side door, and notifying an elevator control device that controls the operation of the elevator; and a power source for driving the driving side door is constructed from a circuit connected in series, the door opening and closing detection circuit for detecting the opening and closing of the door of the drive-side and / or the driven side of the door, wherein the both ends of the door opening and closing detection circuit Since an elevator door apparatus characterized by detecting the interlocking rope breakage by OFF signal from the door closing detecting relay by connecting to both ends of the wire moving rope, it can be applied to various types of elevator doors, the detection It is possible to quickly detect the disconnection of the interlocking rope without providing a special device.

  FIG. 1 is a configuration diagram showing a configuration of a car door in a CO type elevator door. FIG. 1 shows a state where the elevator door is fully closed. In FIG. 1, reference numeral 1 denotes a drive side door (door), 2 denotes a driven side door (door), and 3 denotes an upper part of the drive side door 1 and the driven side door 2. A hanger 4 for hanging the hanger 4 is a hanger case in which the hanger 3 is housed. Reference numeral 5 denotes a pair of rollers (pulleys) disposed near both ends in the hanger case 4 and fixed to the hanger case 4. Reference numeral 6 denotes a first rope fixing bracket for fixing an interlocking rope 7 described later, which is fixed to the hanger 3 on the drive side door 1 side. Reference numeral 7 denotes an interlocking rope, which is looped around a pair of rollers 5, and both ends thereof are fixed to the first rope fixing bracket 6.

  Reference numeral 8 denotes a second rope fixing bracket attached to the hanger 3 on the driven side door 2 side, which fixes the hanger 3 on the driven side door 2 side and the interlocking rope 7. A gate switch 9 is a device that detects the opening and closing of the car door. A door closing detection relay 10 is turned on / off in accordance with the door closing and opening of the car door by a signal from the gate switch 9. That is, it is turned on when the car door is closed and turned off when the car door is open. Reference numeral 11 denotes a power source for driving the drive side door. A wiring portion 12 of the present invention is a door opening / closing detection circuit (hereinafter referred to as a gate switch circuit) for detecting the opening / closing of a door in which the gate switch 9, the door closing detection relay 10 and the power source 11 are connected in series. Both ends are connected to both ends of the interlocking rope 7. That is, in the present invention, the gate switch circuit is wired via the interlocking rope 7 (the interlocking rope 7 is a part of the gate switch circuit connected in series). In addition, in order to prevent a short circuit, the material of this interlocking rope 7 shall be an electric wire with insulation coating. Further, it is desirable to use insulated materials for the roller 5, the first rope fixing bracket 6, and the second rope fixing bracket 8 that are in contact with the interlocking rope 7. With this configuration, when the driving side door 1 is driven, the driven side door 2 operates in conjunction with the interlocking rope 7, and as a result, the driving side door 1 and the driven side in the left-right direction of the drawing. The doors 2 are separated from the center and moved to the left and right door pockets, respectively, and the doors are fully opened.

  Thus, in the configuration of FIG. 1 of the present invention, an existing gate switch circuit for detecting the opening and closing of the door in which the gate switch 9, the door closing detection relay 10 and the power source 11 are connected in series is connected to the interlocking rope 7. Therefore, when the interlocking rope 7 is cut for some reason, the door closing detection relay 10 is turned off. Therefore, the door closing detection relay 10 is turned OFF not only when the car door is in the door open state but also when the interlocking rope is out.

  FIG. 2 is a configuration diagram showing a configuration of a landing door in a CO type elevator door. The configuration of FIG. 2 is the same as that of FIG. 1 except that the gate switch 9 is changed to the lock switch 13, and therefore, the same reference numerals are given and description thereof is omitted here.

  Therefore, also in the configuration of FIG. 2 of the present invention, an existing door opening / closing detection circuit for detecting the opening / closing of the door in which the lock switch 13, the door closing detection relay 10 and the power source 11 are connected in series as in FIG. (Hereinafter, the lock switch circuit 13) is wired via the interlocking rope 7, so that the door closing detection relay 10 is turned off when the interlocking rope 7 is broken for some reason. Therefore, the door closing detection relay 10 is turned OFF not only when the car door is in the door open state but also when the interlocking rope is out.

  Thus, in the CO type elevator door device of the present invention, either the car door or the landing door can be provided by providing the structure of FIG. 1 on the car door and providing the structure of FIG. 2 on the landing door. When the interlocking rope 7 is cut, the disconnection of the interlocking rope can be detected promptly.

  FIG. 3 is a configuration diagram showing the configuration of the car door in the 2S type elevator door. FIG. 3 shows a state where the elevator door is fully closed. In FIG. 3, 1 is a drive side door (door), 2 is a driven side door (door), and 3 is attached to the upper part of the drive side door 1 and the driven side door 2. Reference numeral 14 denotes a hanger case in which the hanger 3 is stored. Reference numeral 15 denotes a pair of rollers, and these rollers 15 are fixed to the hanger 3 on the driven side door 2 side. Reference numeral 16 denotes a first rope fixing bracket for fixing the interlocking rope 7 and is fixed to the hanger case 14. Reference numeral 7 denotes an interlocking rope, which is looped around a pair of rollers 15, and both ends thereof are fixed to the first rope fixing bracket 16.

  Reference numeral 18 denotes a second rope fixing bracket attached to the hanger 3 on the drive side door 1 side, which fixes the hanger 3 on the drive side door 1 side and the interlocking rope 7. A gate switch 9 is a device that detects the closing of the car door. A door closing detection relay 10 is turned on / off by a signal from the gate switch 9 in accordance with the opening / closing of the car door. That is, it is turned on when the car door is closed and turned off when the car door is open. Reference numeral 11 denotes a power source for driving the drive side door. A wiring portion 12 of the present invention is a door opening / closing detection circuit (hereinafter referred to as a gate switch circuit) for detecting the opening / closing of a door in which the gate switch 9, the door closing detection relay 10 and the power source 11 are connected in series. Both ends are connected to both ends of the interlocking rope 7. That is, in the present invention, the gate switch circuit is wired via the interlocking rope 7 (the interlocking rope 7 is a part of the gate switch circuit connected in series). In the configuration of FIG. 3 as well, the material of the interlocking rope 7 is an electric wire with insulation coating, and the material of the roller 15, the first rope fixing bracket 16, and the second rope fixing bracket 18 as in FIG. 1. It is desirable to use an insulated one. A door rail (not shown) is provided for each door of the driving side door 1 and the driven side door 2 to open and close the driving side door 1 and the driven side door 2 by supporting and sliding the roller 15. (Omitted) is fixed to the hanger case 14. With this configuration, when the driving side door 1 is driven, the driven side door 2 operates in conjunction with the action of the interlocking rope 7, and as a result, the driving side door 1 and the driven side door 1 move in the right direction in the drawing. The door 2 moves and the doors 1 and 2 are overlapped in the door pocket so that the door is fully opened.

  Thus, in the present invention, an existing gate switch circuit for detecting the opening and closing of the door in which the gate switch 9, the door closing detection relay 10 and the power source 11 are connected in series is wired via the interlocking rope 7. Therefore, if the interlocking rope is cut for some reason, the door closing detection relay 10 is turned off. Therefore, the door closing detection relay 10 is turned OFF not only when the car door is in the door open state but also when the interlocking rope is out.

  FIG. 4 is a configuration diagram showing a configuration of a landing door in a 2S type elevator door. The configuration of FIG. 4 is the same as that of FIG. 3 except that the gate switch 9 is changed to the lock switch 13, and therefore the same reference numerals are given, and the description thereof is omitted here.

  Therefore, also in the configuration of FIG. 4 of the present invention, as in FIG. 3, an existing door opening / closing detection circuit for detecting the opening / closing of the door in which the lock switch 13, the door closing detection relay 10 and the power source 11 are connected in series. (Hereinafter, the lock switch circuit 13) is wired via the interlocking rope 7, so that the door closing detection relay 10 is turned off when the interlocking rope 7 is broken for some reason. Therefore, the door closing detection relay 10 is turned OFF not only when the car door is in the door open state but also when the interlocking rope is out.

  As described above, in the 2S type elevator door device of the present invention, either the car door or the landing door is provided by providing the structure of FIG. 3 on the car door and providing the structure of FIG. 4 on the landing door. When the interlocking rope 7 is cut, the disconnection of the interlocking rope can be detected promptly.

  FIG. 5 is an overall configuration diagram of the elevator door device in FIGS. 1 and 3. In FIG. 5, reference numerals 9 and 10 denote the gate switch and the door closing detection relay described in FIGS. 1 and 3, respectively. Reference numeral 20 denotes a signal from the door closing detection relay 10, and a control signal is transmitted to the elevator car 21 based on the signal. The elevator controller 21 controls the operation of the elevator, 21 is the elevator car, and 22 is the elevator car 21. A hoistway that goes up and down.

  In the configuration of FIG. 5, the gate switch 9 detects the opening / closing of the car door and turns it on / off, so that the door closing detection relay 10 detects the door opening / closing of the elevator car 21 and indicates door opening or closing. A signal (OFF or ON) is input to the elevator controller 20. When the elevator control device 20 detects the door closing of the elevator door by the ON signal from the door closing detection relay 10, the elevator controller 21 continues the operation of the elevator car 21, and conversely, by the OFF signal from the door closing detection relay 10, the elevator control device 20 When opening of the door is detected, the operation of the elevator car 21 is stopped for safety.

  Although the above-described operation is performed in a normal state, a case where the interlocking rope 7 is cut will be described. When the interlocking rope 7 is broken, a part of the gate switch circuit is disconnected, so that the door closing detection relay 10 is turned off. The elevator control device 20 detects the disconnection of the interlocking relay 10 by a signal from the door closing detection relay 10 and stops the operation of the elevator car 21 for safety. As described above, in the present invention, the door closing detection relay 10 is turned off when the interlocking rope 10 is cut regardless of whether the car door is open or closed. Linkage rope breakage can be detected.

  FIG. 6 is an overall configuration diagram of the elevator door device in FIGS. 2 and 4. The configuration in FIG. 6 is the same as that in FIG. 5 except that the lock switch 13 is turned ON / OFF and the door closing detection relay 10 inputs the door opening / closing of the landing door to the elevator control device 20. Then, detailed explanation is omitted.

  In the configuration of FIG. 6, the lock switch 13 detects the opening / closing of the landing door and turns it on / off, so that the door closing detection relay 10 detects the door opening / closing of the landing door, and indicates a signal indicating the door opening or closing. (OFF or ON) is input to the elevator controller 20. When the elevator control device 20 detects the door closing of the elevator door by the ON signal from the door closing detection relay 10, the elevator controller 21 continues the operation of the elevator car 21, and conversely, by the OFF signal from the door closing detection relay 10, the elevator control device 20 When opening of the door is detected, the operation of the elevator car 21 is stopped for safety.

  Although the above-described operation is performed in a normal state, a case where the interlocking rope 7 is cut will be described. When the interlocking rope 7 is broken, a part of the lock switch circuit is disconnected, so that the door closing detection relay 10 is turned off. The elevator control device 20 detects the disconnection of the interlocking relay 10 based on the OFF signal from the door closing detection relay 10, and stops the operation of the elevator car 21 for safety. As described above, in the present invention, the door closing detection relay 10 is turned off when the interlocking rope 10 is cut regardless of whether the car door is open or closed. Linkage rope breakage can be detected.

  As described above, according to the present invention, the gate switch circuit (in the case of a car door) or the lock switch circuit (in the case of a landing door) is connected via the interlocking rope 7 in the interlock rope system door of the CO type and 2S type elevators. By connecting the cables, it is possible to detect the disconnection of the interlocking rope reliably and immediately. Therefore, it is possible to reliably prevent a trouble that the elevator travels with the driven side door open.

  In addition, in the present invention, by using the existing configuration as described above, two door switches are attached to each floor as in the past, or a magnetic body and a magnetic detection unit (or light emission as in Patent Document 1). It is not necessary to newly provide a detection device such as a car door and a landing door, so that costs and installation time can be reduced.

  Further, even if the door is in a fully closed state, if the interlocking rope breaks, the door closing detection relay 10 is turned off. Therefore, the interlocking rope disconnection is promptly detected at any time regardless of the open / closed state of the door. be able to.

  As described above, the present invention can be applied to a center opening type elevator door as well as a side opening type elevator door, and the drive side door and the driven side door are optional. Since it can be applied even if it is constituted by the number of sheets, the elevator door device according to the present invention can be applied to any type of elevator without being limited to the door type. In addition, in this specification, although the example applied to the center opening type elevator door and the side opening type elevator door has been described, it is also applicable to other types of elevators. Needless to say.

It is the block diagram which showed the structure of the car door (CO type) in the elevator door apparatus of this invention. It is the block diagram which showed the structure of the landing door (CO type) in the elevator door apparatus of this invention. It is the block diagram which showed the structure of the car door (2S type) in the elevator door apparatus of this invention. It is the block diagram which showed the structure of the landing door (2S type) in the elevator door apparatus of this invention. It is a block diagram which shows the structure of the whole elevator door apparatus shown to FIG. 1 and FIG. 3 of this invention. It is a block diagram which shows the structure of the whole elevator door apparatus shown to FIG. 2 and FIG. 4 of this invention.

Explanation of symbols

  1 door on the driving side, 2 door on the driven side, 3 hanger, 4,14 hanger case, 5,15 roller, 6,16 first rope fixing bracket, 7 interlocking rope, 8,18 second rope fixing bracket, 9 gate switch, 10 door closing detection relay, 11 power supply, 12 wiring part, 13 lock switch, 20 elevator control device, 21 elevator car, 22 hoistway.

Claims (4)

An elevator door device for detecting interlocking rope breakage,
Driving side door ,
Interlocking rope using electric wire with insulation coating,
Driven side of the door to be opened and closed in conjunction with the drive side of the door is engaged by the interlocking rope to the drive side of the door,
and,
A switch for detecting ON / OFF of the driving side door and / or the driven side door, and opening / closing of the driving side door and / or the driven side door based on a signal from the switch. A door closing detection relay for detecting and notifying an elevator control device that controls the operation of the elevator, and a circuit in which a power source for driving the driving side door is connected in series, the driving side door and A door opening / closing detection circuit for detecting opening / closing of the driven side door ;
With
The elevator door device is characterized in that an interlock rope breakage is detected by an OFF signal from the door close detection relay by connecting both ends of the door opening / closing detection circuit to both ends of an electric wire of the interlock rope . The elevator door device according to claim 1 , wherein the switch includes a gate switch provided in an elevator car door. The elevator door device according to claim 1 , wherein the switch includes a lock switch provided on a landing door of the elevator. The elevator door device according to claim 1, wherein the switch includes a gate switch provided on an elevator car door and a lock switch provided on an elevator landing door.

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