JP2000211864A - Lock device of jamb door of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock device of a jamb door of elevator with key hole not exposed and equipped with an excellent design quality. SOLUTION: An inner panel 5 is installed on the side with a door box of a jamb at an elevator hall, and an electromagnetic lock device 9 is installed on the inner surface of a jamb door 7 capable of opening and shutting to form a specified space inside the jamb in combination with the inner panel 5, and the three-side frame door is locked in the shut condition by engaging the lock device 9 with the inner panel. Thereby the opening/closing motions of the jamb door 7 are controlled remotely by the electromagnetic lock device 9, and it is possible to prevent the jamb door 7 from being opened and shut easily by an outsider.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator device in which a main control device for controlling the operation of an elevator is housed in a three-way frame of an elevator landing, and more particularly to a lock device for a three-way frame door.

[0002]

2. Description of the Related Art In general, a rope type elevator apparatus is provided with a drive motor in a machine room installed at the top of a hoistway, and a sheave is connected to the drive motor. Then, the elevator car is fixed to one end of the rope wound around the sheave, and the other end of the rope is almost balanced with the weight of the elevator car. The counterweight is fixed. Further, a main controller for controlling the operation of the elevator car is arranged in the machine room.

[0003] Since the machine room of the elevator apparatus is usually installed at the top of the hoistway of the elevator car, the machine room of the elevator apparatus is generally provided so as to protrude above the roof of the building. For this reason, the machine room part may cause a problem on the height of the building or a problem with the sunshine when the building is adjacent to the building. Also on the roof,
The need for a space for a machine room was a disadvantage in terms of effective use of the building.

[0004] Under such circumstances, recently, a machine room-less elevator device has been developed. In the machine room-less elevator device, a main control device and a hoist are separately installed. That is, for example, the hoist is installed at the top of the hoistway, but the main control device is installed in a three-way frame provided with an opening / closing door at an elevator landing on a certain floor (generally, the top floor). .

In such an elevator apparatus without a machine room, the hoist is installed in the hoistway, so that it is not noticeable to ordinary users. Because it is installed in the three-way frame of the landing, it was easily noticed by ordinary users during maintenance and the like.

[0006]

As described above, the main control device installed in the three-way frame is covered by the door of the three-way frame, and the door is locked, so that a general user can use it. The main controller is controlled so that it cannot be touched or viewed. However, the conventional three-sided frame door containing the main control device has a problem that the design is inferior because the keyhole is exposed to the outside, and the keyhole is exposed. There was also a risk that the three-sided door could be pryed open by a third party, causing the third party to be interested in what is contained.

[0007] From such a background, conventionally, the three-sided frame door uses the same locking mechanism as the unlock key of the hold door, so that the three-sided frame door is opened and closed using a special device. However, in this case, there is a problem in that the worker must always carry special equipment for opening and closing the three-way frame door, which is very troublesome. The present invention
It has been made to solve such a conventional problem.

[0008]

Means for Solving the Problems Claim 1 of the present invention.
The invention described in the above, a three-way frame forming an entrance device at the landing of an elevator, an inner panel provided on the door pocket side in the three-way frame, and a predetermined space in the three-way frame in combination with the inner panel An openable three-sided frame door, and an electromagnetic locking device provided on the inner surface side of the three-sided frame door, wherein the electromagnetic locking device is engaged with the inner panel to close the three-sided frame door. It is characterized by being locked to.

Accordingly, when the elevator main control device is installed in a predetermined space formed in the three-way frame of the elevator hall, the main control device can be covered with the three-way frame door so that it cannot be seen from the outside. In addition, by remotely controlling the opening and closing of the three-way frame door by the electromagnetic lock device, it is possible to prevent the third-way frame door from being easily opened and closed by a third party or the like.

[0010] The invention described in claim 2 is the same as the claim 1.
In the lock device for an elevator three-way frame door described in the above, a security data registration switch provided in a switch box of a car operation panel of the elevator, and a car call registration of the car operation panel in a state where the security data registration switch is turned on Operating the button to register the personal identification data, and operating the car call registration button on the car operation panel while either the door open button or the door close button of the car operation panel is turned on. A password data determination control unit for registering the electromagnetic lock release data, and compares the electromagnetic lock release data input to the password data determination control unit with the password data registered in the password data registration control unit. A release signal determination that outputs a lock release permission signal to the electromagnetic lock device to release the lock between the three-way frame door and the internal panel only when Characterized by comprising a control unit.

As described above, since the unlocking of the electromagnetic lock device is performed using the password data, the operator does not need to carry a special device for locking and unlocking, and is thus free from troublesomeness. In addition, the setting and registration of password data and the operation to release the electromagnetic lock can be performed using the car call registration button in the elevator car, so that the operation is easy and the confidentiality of the operation is securely maintained. can do.

Further, the invention according to claim 3 is a lock device for an elevator three-way frame door according to claim 2,
A security detection control unit is provided which issues an alarm when the three-way frame door is opened even though the lock release permission signal is not output from the release signal determination control unit.

[0013] Thus, when it is detected that the three-way frame door is opened without going through the predetermined procedure, it is regarded that mischief or criminal activity has been performed by a third party, and the alarm bell or the like is promptly issued. In addition to issuing an alarm, it is possible to automatically issue an alarm to a maintenance company or the like through a communication line, or to take measures such as urgently stopping an elevator car on the nearest floor to ensure safety.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a lock device for an elevator three-way door according to the present invention will be described below in detail with reference to FIGS.

FIG. 1 is a perspective view of a three-way frame of an elevator as viewed from an elevator landing side. First, the three-way frame will be described with reference to FIG. The three-way frame 1 is provided at a landing of an elevator, and forms an entrance / exit device together with a horizontal sliding door 2 which is an entrance / exit to a car. Therefore, the three-sided frame 1 has two vertical frames 3 erected on both sides and a horizontal frame 4 laid horizontally above the vertical frame 3, and a sill (not shown) provided on the horizontal frame 4. A horizontal sliding door 2 is hung and supported.

FIG. 1 shows one having two horizontal sliding doors 2. The two horizontal sliding doors 2 are retracted to the left side of the figure to open the doorway to the car. The left side of the drawing into which the horizontal sliding door 2 is retracted serves as a door pocket, and an internal panel 5 for preventing contact with the horizontal sliding door 2 is provided. The main control of the elevator apparatus is performed along the internal panel 5. The device 6 is arranged. A three-way frame door 7 that can be opened and closed so as to cover the main control device 6.
(Here, an open state is shown).

That is, since the main control device 6 is disposed in a space formed so as to be surrounded by the inner panel 5 and the three-sided frame door 7, if the three-sided frame door 7 is closed,
The main control device 6 is invisible from the elevator landing side.

FIG. 2 is an enlarged cross-sectional view showing a space portion of the three-way frame 1 formed by the inner panel 5 for accommodating the main control device 6 and the three-way frame door 7. The lower part of the figure is the elevator platform side, and the upper part of the figure is the car side. The inner panel 5 is a horizontal sliding door 2 to be retracted.
From the landing, and is formed in a substantially box shape so as to form a space portion 8a for accommodating the main control device 6, and one end of the front surface becomes a support portion 5a of the three-way frame door 7, Is formed with a flange 5b at the other end. One end of the three-sided frame door 7 is rotatably supported by a hinge 7 a on the support portion 5 a of the inner panel 5, and the other end of the three-sided frame door 7 contacts the flange 5 b of the inner panel 5. It is configured to extend and be bent inward to have the same thickness as the space formed by the inner panel 5.
Therefore, apart from the space portion 8a for accommodating the main control device 6, a small, substantially rectangular space 8b is formed by one surface of the internal panel 5 and three surfaces of the three-sided frame door 7.

An electromagnetic lock device 9 is mounted on the three-way frame door 7 so as to be located in the space 8b.

FIG. 3 is an enlarged view of a portion where the electromagnetic lock device 9 is mounted. A rod 9c is connected to an operating piece 9a of the electromagnetic lock device 9 via a connecting member 9b. The rod 9c is adapted to be engaged with one surface of the inner panel 5.

The electromagnetic lock device 9 is normally in a non-excited state, as will be described in detail later. When the lock is released, the internal solenoid coil is excited by a control signal from the main control device 6. . In the non-excited state, the operating piece 9a projects by the force of the spring, so that the rod 9c engages with the through hole formed in the inner panel 5, and the three-sided frame door 7 is locked to the inner panel 5. ,
When excited, the operating piece 9a is sucked against the force of the spring, so that the rod 9c is disengaged from the inner panel 5, and the three-side frame door 7 is unlocked. 2 and 3 show a state in which the rod 9c is engaged with the inner panel 5, and the three-sided frame door 7 is closed and locked. Although the rod 9c is connected to the operating piece 9a of the electromagnetic lock device 9 via the connecting tool 9b here, if the space 8b is small, the operating piece 9a of the electromagnetic lock device 9 is connected to the inner panel 5 Can be directly engaged.

A door open / close detection limit switch 10 is attached to the flange 5b of the inner panel 5. The door open / close detection limit switch 10 is provided for monitoring the open / closed state of the three-way frame door 7 and is shown in FIG.
2 is a perspective view showing a state of the three-way frame door 7 with respect to the internal panel 5 to which the door open / close detection limit switch 10 is attached. Therefore, when the three-way frame door 7 is properly closed, the door open / close detection limit switch 10 is always on, but when the three-way frame door 7 is opened, it turns off.

FIG. 5 is a view corresponding to FIG. 2 showing a state in which the three-sided frame door 7 is open. As is well shown in this figure, the three-sided frame door 7 is pivoted about a hinge 7a. ,
It is opened by rotating in the direction of arrow A, that is, toward the elevator landing. Therefore, in this state, the main control device 6 housed in the space portion 8a is exposed, and maintenance and inspection of the main control device 6 are performed by an operator.

Next, control for exciting the solenoid coil of the electromagnetic lock device 9 to release the lock will be described in detail.

FIG. 6 is a block diagram showing an example of a control device for controlling the electromagnetic lock device 9. As shown in FIG. This control device mainly includes a microcomputer 21 provided in the main control device 6, and a car call registration button or the like provided on a car operation panel is used as a means for inputting a signal to the microcomputer 21. You. The microcomputer 21 has a password data registration control unit 2
2. Password data determination control unit 23, release signal determination control unit 2.
4 and a security detection control unit 25 are provided.

First, the password data registration control unit 22 registers password data which is a key when exciting the solenoid coil of the electromagnetic lock device 9. The password data is used to open and close the three-way frame door 7. This is a measure to allow only a limited number of people, such as maintenance personnel and building managers. That is, while turning on the automatic recovery type password data registration switch 26 provided in the switch box of the operation panel provided in the elevator car, the operation panel is controlled within a predetermined time (for example, within 5 seconds (SEC)). By pressing the car call registration button 27 provided in the, the personal identification data is registered in the personal identification data registration control unit 22. For example, 4
Elevator equipment installed in a multi-storey building, from the first floor to four
Assuming that four car call registration buttons 27 up to the floor are provided, for example, the first, second, third, and fourth floor car call registrations can be performed within a predetermined time while the password data registration switch 26 is turned on. Press the buttons 27 sequentially. Thereby, “1234” is registered in the password data registration control unit 22 as the password data. Of course, it goes without saying that the number of digits of the password data is not limited to four and can be set as appropriate.

Next, an operation for releasing the lock by exciting the solenoid coil of the electromagnetic lock device 9 will be described. When releasing the lock by the electromagnetic lock device 9,
While turning on the door open button 28 (button operated by the user to open the car door) provided on the car operation panel,
When the car call registration button 27 is pressed, data is input to the password data determination control unit 23 in the order in which the buttons were pressed. That is, when the car call registration button 27 is sequentially pressed, for example, on the first floor, the second floor, the third floor, and the fourth floor, “1234” is input to the password data determination control unit 23 as unlock data, and the password data determination control is performed. The data input to the section 23 is transferred to the release signal determination control section 24 as lock release signal data.

Further, when the above-mentioned door open button 28 is pressed and the car call registration button 27 is inputted, the registered password data is transferred from the password data registration control unit 22 to the release signal determination control unit 24. Is done. Then, the password data and the unlock data are compared by the unlock signal determination control unit 24, and if both data match, the electromagnetic lock device 9
Output a lock release permission signal to That is, a signal is supplied from the release signal determination control unit 24 to the electromagnetic lock device 9 so as to excite the internal solenoid coil. Therefore,
Since the electromagnetic lock device 9 is excited and the operating piece 9a is attracted against the force of the spring, the engagement between the rod 9c and the inner panel 5 is released, and the lock of the three-way frame door 7 is released. .

At this time, a lock release signal is also output from the release signal determination control unit 24 to the security detection control unit 25. A door open / close detection limit switch 10 is connected to the security detection control unit 25, and when the lock of the three-way frame door 7 is released and the three-way frame door 7 is opened,
Although the OFF signal of the door opening / closing detection limit switch 10 is supplied, it is not recognized as abnormal because the lock release permission signal is supplied.

On the other hand, in the release signal determination control unit 24, when the password data and the release data do not match, that is, when the operation of the car call registration button 27 is mistaken or no operation is performed, Since the lock release permission signal is not output from the release signal determination control unit 24, the excitation signal is not supplied to the electromagnetic lock device 9, and the electromagnetic lock device 9 does not operate. Therefore, the lock state continues and the three-side frame door 7 is not opened. .

In such a case, if the three-way frame door 7 is forcibly opened due to mischief or the like, the door open / close detection limit switch 10 detects this, and the OFF signal of the door open / close detection limit switch 10 is sent to the security detection control unit 25. The security detection control unit 25 determines that this is abnormal, and issues an alarm signal to the alarm system 29. Therefore, the alarm system 29 may be used to sound a bell or other alarm, take measures such as urgently stopping the elevator car on the nearest floor to ensure safety, or provide an elevator equipment management office or maintenance company. To notify an abnormality through a communication line.

When the lock is released, the car call registration button 2 is turned on while the door open button 28 (the button operated by the user to open the car door) provided on the operation panel is turned on.
Although it has been described that the user presses the button 7, it is set so that the car call registration button 27 is pressed while the door close button (the button operated by the user to close the car door) is turned on instead of the door open button 28. May be.

FIG. 7 is a flowchart showing the operation of registering the personal identification data in the lock device for the three-way elevator door of the present invention. The operation of registering the personal identification data will be described again with reference to this flowchart.

That is, first, the password data registration switch 26 provided in the switch box of the car operation panel.
Is checked (step S1). If the password data registration switch 26 is ON, the input of new password data is accepted. If the password data has already been registered, the old password data is cleared (step S2). Next, the input state of the car call registration button 27 on the operation panel is checked to register new password data (step S3). And the password data registration switch 2
When the car call registration button 27 is pressed while the button 6 is in the ON state, first, the same number as the floor display of the car call registration button 27 pressed first is registered as the first digit password data (step). S4). Similarly, the second pressed button is registered as the second digit password data.

Any number of digits can be registered up to the Nth digit of the password data (step S5). However, since the password data registration switch 26 is turned on (step S1),
If it is set to an arbitrary setting time, for example, 5 seconds,
It is defined that operation and registration must be performed within 5 seconds, and the set time of 5 seconds is counted (step S6). When 5 seconds have elapsed, the registration of the password data is terminated at that point, and the data input up to that time is terminated. Is set as new password data (step S7). However, normally, the password data is set to about four digits in advance, and the registration work is performed within a predetermined set time.

Next, the operation for releasing the lock by the electromagnetic lock device 9 will be described with reference to the flowchart at the time of the password data releasing operation shown in FIG. First, the state of the door open button 28 on the operation panel is checked (step S
11). Here, if the door open button 28 is pressed, the input state of the car call registration button 27 is checked at the same time (step S12). Here, when the car call registration button 27 is pressed,
This is regarded as release data input, and first, the same number as the floor display of the car call registration button 27 pressed first is registered as the first digit release data (password) (step S13).
a). Similarly, the second pressed button is registered as the cancellation data of the second digit, and is sequentially registered up to the n-th digit (step 13n). In this case as well, like the registration of the password data,
For example, it is set that release data must be input within 5 seconds after turning on the door open button 28, and the set time is counted (step S14).
The input data of the car call registration button 27 input up to that time is finally set as release data (step S15).

Then, the password data described with reference to FIG. 7 and the release data set here are compared to check whether they match (step S16). That is, it is checked whether or not the preset password data and the same release data as the data are input, and if the data match, an unlock signal is output (step S
17). After 5 seconds have passed since the time when the door open button 28 was pressed, if the unlock data input up to that time does not match the already registered password data, it is regarded as an error and the unlock signal is regarded as an error. No output is made, and the process returns to the main routine (step S18).

Next, the security detection subroutine in the elevator three-way frame door lock device of the present invention will be described with reference to the flowchart shown in FIG. When the password data and the release data match as described in the flowchart of FIG. 8, the lock release signal is output. It is checked whether the lock release signal has been output (step S21). If the lock release signal has not been output, the on / off state of the door open / closed detection limit switch 10 is checked next (step S22). If the door open / closed detection limit switch 10 is off, It is considered that there has been some wrongdoing, the abnormal door opening of the three-way frame 7 is detected (step S23), and an alarm signal is issued to the alarm system to sound a bell or other alarm, In order to ensure safety, measures such as urgently stopping the elevator car on the nearest floor are taken, or an abnormality is notified to the elevator office management office or maintenance company through a communication line (step S24).

[0039]

As described above in detail, according to the first aspect of the present invention, when the elevator main control device is installed in a predetermined space formed in the three-way frame of the elevator hall, By covering with a frame door and making it invisible from the outside, the opening and closing of the three-way frame door is remotely controlled by an electromagnetic lock device,
It is possible to prevent the three-way frame door from being easily opened and closed by a third party or the like. Since the key and the keyhole are not exposed on the three-sided frame door, it is possible to prevent mischief and to improve the design.

According to the second aspect of the present invention, the unlocking of the electromagnetic lock device is performed using the password data, so that the maintenance staff needs to carry a special device for locking and unlocking. It is no longer necessary, and you are free from hassle. In addition, the setting and registration of password data and the operation to release the electromagnetic lock can be performed using the car call registration button in the elevator car, so that the operation is easy and the confidentiality of the operation is securely maintained. can do.

According to the third aspect of the invention, when it is detected that the three-way frame door is opened without going through a predetermined procedure, a mischief or a criminal act is performed by a third party. And immediately issue an alarm with an alarm bell, etc., automatically issue an alarm to a maintenance company, etc. through a communication line, and take measures such as urgently stopping the elevator car on the nearest floor to ensure safety. Or you can.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a lock device for an elevator three-way frame door according to the present invention as viewed from a landing side.

FIG. 2 is an enlarged cross-sectional view showing a space portion formed by an inner panel for housing a main control device and a three-sided frame door in the three-way frame shown in FIG.

FIG. 3 is an enlarged view showing a mounting portion of the electromagnetic lock device shown in FIG. 2;

FIG. 4 is a perspective view showing a state of a three-way frame door with respect to an internal panel to which a door open / close detection limit switch shown in FIG. 2 is attached.

FIG. 5 is a view corresponding to FIG. 2 and showing a state in which a three-way frame door is open in the apparatus shown in FIG. 1;

FIG. 6 is a block diagram showing an example of a control device for controlling the electromagnetic lock device in the device shown in FIG.

FIG. 7 is a flowchart for explaining a password data registration operation in the elevator three-way frame door lock device of the present invention.

FIG. 8 is a flowchart for explaining a password data release operation in the elevator three-way frame door lock device of the present invention.

FIG. 9 is a flowchart illustrating a security detection subroutine in the elevator three-way frame door lock device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Three-way frame 5 Internal panel 6 Main control device 7 Three-way frame door 9 Electromagnetic lock device 10 Door open / close detection limit switch 21 Microcomputer 22 Password data registration control unit 23 Password data judgment control unit 24 Release signal judgment control unit 25 Security detection control unit 26 Security data registration switch 27 Car call registration button 28 Door open button 29 Alarm system

Claims (3)

[Claims] 1. A three-way frame forming an entrance / exit device at an elevator landing, an inner panel provided on a door pocket side of the three-way frame, and a predetermined space formed in the three-way frame in combination with the inner panel. An openable and closable three-sided frame door, and an electromagnetic locking device provided on an inner surface side of the three-sided frame door, and the electromagnetic locking device is engaged with the inner panel to close the three-sided frame door. A lock device for an elevator three-way frame door, which is locked. 2. A security data registration switch provided in a switch box of a car operation panel of the elevator, and a security data registration switch operated by operating a car call registration button of the car operation panel with the security data registration switch turned on. A password data registration control unit for registering, and in a state where either the door open button or the door close button of the car operation panel is turned on, the car lock registration button of the car operation panel is operated to register the electromagnetic lock release data. A password data determination control unit that compares the electromagnetic lock release data input to the password data determination control unit with the password data registered in the password data registration control unit. A release signal determination control unit that outputs a lock release permission signal to the electromagnetic lock device to release the lock between the three-way frame door and the internal panel. The lock device for an elevator three-way frame door according to claim 1. 3. A security detection control unit which issues an alarm when the three-way frame door is opened even though the lock release permission signal is not output from the release signal determination control unit. The lock device for an elevator three-way frame door according to claim 2.