JP2002160872A - Wrong operation preventing device for car control panel for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a car control panel for an elevator that can prevent a wrong operation of a maintenance and inspection switch without attachment and detachment of a protective cover. SOLUTION: A combinational operation of a car button 7 arranged in the car control panel 2 generates a password. The password is compared with a set password stored in advance in a password storing means 13. In dependence on the comparison result, an invalidated operation of the maintenance and inspection switch 6 is validated. In a normal operation, the operation of the maintenance and inspection switch 6 is invalidated again.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing an erroneous operation of a maintenance switch provided on an elevator car operation panel.

[0002]

2. Description of the Related Art A car operation panel of an elevator includes a car button for designating a destination of a car used by ordinary passengers, a door close button and a door open button for controlling opening and closing of a door, and the like. An elevator operation stop switch and the like used as part of management, and a maintenance and inspection switch and the like used by elevator maintenance staff are installed. These operating devices are mounted so as not to be erroneously operated. FIG. 7 shows a conventional car operation panel 17 of an elevator serving the fourth floor, in which various operation tools are stored in a case 17b, and the case 17b is covered with a face plate 17a. The car button 7 including the destination buttons 71 to 74, the door open button 7o, and the door close button 7c has an operation unit exposed on the face plate 17a, and is used for general passenger use.

The maintenance and inspection switch 6, which is used only by the building manager and elevator maintenance staff, is provided with a case 17b.
The maintenance and inspection switch 6
Is attached to the face plate 17a.
An opening 17c is formed, and a sliding door 3 for opening and closing the opening 17c is provided and is always locked by a key 4. This prevents erroneous operation by general passengers, and unlocks the switch when necessary, and is used for maintenance and inspection. 6 can be operated. The operation switch 61, the lighting switch 62, and the fan switch 64 are included in the maintenance inspection switch 6.
Is used by building managers as well as maintenance personnel. The maintenance inspection switch 6 other than the above, for example, the maintenance operation switch 63 for switching between normal operation and maintenance operation is limited to the use of maintenance personnel. As described above, the maintenance inspection switch 6 is used for different persons.

Therefore, the maintenance and inspection switch 6 is closed by the sliding door 3 as described above.
A protective cover 18 is provided between the maintenance inspection switch 6 and the sliding door 3. The protective cover 18 has a cut-out portion facing the operation switch 61, the illumination switch 62, and the fan switch 64, and has an opening 18a. Therefore, when the sliding door 3 is opened, the building manager can operate the operation switch 61, the lighting switch 62, and the fan switch 64 through the opening 18a with the protective cover 18 attached.

However, the maintenance and inspection switches 6 other than the operation switch 61 and the like are covered with the protective cover 18 and cannot be operated. Therefore, the building manager does not accidentally operate the maintenance inspection switch 6 used only by the maintenance staff. For maintenance work, remove the protective cover 18 and
When the operation is completed, the protective cover 18 is attached again, the sliding door 3 is closed, and the key 4 is locked.

[0006]

Since the conventional elevator car operation panel is constructed as described above, the protective cover 18 must be attached and detached every time maintenance work is performed, which is troublesome. there were. In addition, there is a problem in that the protection cover 18 may be forgotten to be returned even after the maintenance work is completed, and the prevention of erroneous operation of the car operation panel is not sufficiently ensured.

The present invention has been made to solve the above problems, and provides an elevator car operation panel capable of preventing erroneous operation without using a protective cover.

[0008]

According to a first aspect of the present invention, there is provided an elevator car operating panel erroneous operation preventing apparatus which generates a password by a combination operation of a car button provided on a car operating panel, and which generates a password in advance. The password is compared with the set password stored in the number storage means, and based on the result of the comparison, the operation of the maintenance / inspection switch invalidated is enabled, and in normal operation, the operation of the maintenance / inspection switch is disabled again. It is like that.

According to a second aspect of the present invention, there is provided a device for preventing erroneous operation of a car operation panel of an elevator, wherein when a sliding door for opening / closing an opening of a face plate of the car operation panel is closed, the operation of a maintenance / inspection switch that has become effective is disabled again. It is something to do.

According to a third aspect of the present invention, there is provided an elevator car operation panel misoperation prevention device that disables the operation of the maintenance and inspection switch again by operating the car operation panel operating instrument in a state where it is not operated during the maintenance and inspection. It was made.

According to a fourth aspect of the present invention, there is provided an elevator car operation panel misoperation prevention apparatus including a maintenance operation switch for switching between a normal operation and a maintenance operation, the maintenance operation switch including the maintenance operation switch being switched from the maintenance operation to the normal operation. The operation of the maintenance inspection switch is invalidated.

According to a fifth aspect of the present invention, there is provided a device for preventing an erroneous operation of a car operating panel of an elevator, wherein a detachable keyboard is connected to generate a set password by an external operation, and the set password is stored in a password storage means. It was made.

According to a sixth aspect of the present invention, there is provided an elevator car operation panel misoperation prevention apparatus which switches to a password setting mode by a key operation mode changeover switch provided on the car operation panel, and operates the car under this password setting mode. A signal resulting from a combination operation of a car button provided on the panel is stored in a password storage means as a set password.

According to a seventh aspect of the present invention, there is provided an elevator car operation panel misoperation prevention apparatus, wherein when a car button is operated in combination with a sliding door that opens and closes an opening of a face plate of the car operation panel, the combination is performed. The signal is output as a personal identification number.

According to an eighth aspect of the present invention, there is provided a device for preventing an erroneous operation of a car operation panel of an elevator, wherein a maintenance / inspection switch whose operation has been validated is indicated by a lamp.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 to FIG.
Embodiment 1 Embodiment 1 of the present invention will be described. In FIG. 1, 1 is a car, 1a is a car lighting, 1b is a fan, 1c is a car door, 2
A sliding door 3 for moving the car operating panel 3 up and down to open and close an opening formed in a face plate of the car operating panel 2;
A switch for maintenance and inspection stored in the basket operation panel 2,
It is always concealed by the sliding door 3, and when necessary, the sliding door 3 is exposed by opening the opening, and is composed of an elevator maintenance staff and a part of switches used by the building manager. Reference numeral 7 denotes a car button used for general passenger use.

Numeral 11 denotes invalidating means for invalidating the operation of the maintenance / inspection switch 6, reference numeral 12 designates a password setting means for generating a set password by an external operation and storing it in a password storing means 13 in advance, and reference numeral 14 designates a car operation. A password generating means for outputting a signal by a combination operation of the car button 7 provided on the panel 2 as a password, 15 is a password output from the password generating means 14 and a setting stored in the password storing means 13. Password number comparing means for comparing with a password, 1
Numeral 6 denotes an activating means for validating the operation of the maintenance / inspection switch 6 invalidated by the invalidating means 11 based on the comparison result of the personal identification number comparing means 15.

2 to 4, reference numeral 2a denotes a car operation panel 2.
The face plate 2b is a case in which various operation tools are stored, and the opening is covered with the face plate 2a. Reference numeral 2c denotes an opening formed by cutting off the face plate 2a, which is opened and closed by the sliding door 3. Reference numeral 4 denotes a key which locks the sliding door 3 in a closed state, and 5 denotes a rail which is attached to both sides of the opening 2c on the back surface of the face plate 2a and guides the sliding door 3.

The maintenance / inspection switch 6 is mounted in the case 2b via the mounting plate 6a and is always concealed by the sliding door 3. When necessary, the sliding door 3 is exposed by opening the opening 2c to maintain the elevator. A staff and a group of switches partially used by the building manager, the operation switch 61 for operating and stopping the elevator, the lighting switch 62 for turning on / off the car lighting 1a, and switching between normal operation and maintenance operation. Maintenance operation switch 63 and fan 1b
Switch 64 for turning ON / OFF the car and car door 1c
Switch 65 for stopping the operation of the car 1, and the independent operation switch 6 for switching the car 1 in the group management operation to the independent operation
6 and emergency stop switch 67 for emergency stop of car 1
And an emergency call switch 68 for calling the outside.

The maintenance / inspection switch 6 has contacts 61a to 68a, respectively, as shown in FIG. In addition, valid display lamps 61b to 68b are provided corresponding to the maintenance / inspection switch 6, so that those whose operation is disabled are turned off, and those which are enabled are turned on. The car button 7 includes destination buttons 71 to 74, a door open button 7o, and a door close button 7c.
1a to 74a, 7oa, and 7ca, which function as elements of the personal identification number generating means 14. Reference numeral 8 denotes an open / close detection switch having normally open contacts 8a and 8b which are closed by opening the sliding door 3, and which are normally open contacts 8a and 8b when the door is closed.
The function of the disabling means 11 is set to invalidate the operation of the maintenance / inspection switch 6 by releasing. Reference numeral 91 denotes a power supply line of the effective display lamps 61b to 68b, and reference numeral 90 denotes a common power supply line.

Reference numeral 60 denotes an enable / disable switching circuit functioning as an enabling means 16 and an invalidating means 11 for enabling / disabling the operation of the maintenance / inspection switch 6, and of the maintenance / inspection switch 6 during normal operation. A normally closed switch connects the disable contact in parallel with this switch,
The invalidating contact is closed and the switch is short-circuited to invalidate the switch, and the closed invalidating contact is opened to enable the invalidating contact. In addition, a switch that is normally opened during normal operation is connected to a disabling contact in series with the switch, the disabling contact is opened, the switch is disconnected from the circuit, and the switch is disabled. The switch is enabled by closing the disable contact and connecting the switch to a circuit.

For example, the maintenance operation switch 63 is a switch that is closed during normal operation. Therefore, the contact 63a is invalidated by being short-circuited by the contact 63c which is a component of the valid / invalid switching circuit 60, and is activated by opening the contact 63c. When activated, the contact 63d closes and the valid indicator lamp 63b
Lights up. The emergency call switch 68 is a switch that is normally opened during normal operation. Therefore, the contact 68a is connected to the valid / invalid switching circuit 6 connected in series.
The contact 68c, which is a component of “0”, is disabled by being opened and disconnected from the circuit, and is enabled by closing the opened contact 68c and connecting to the circuit. When activated, the contact 68d is closed and the valid indicator lamp 68b is turned on.

The operation switch 61 and the lighting switch 6
2 and the fan switch 64 are both shared by the building manager and the maintenance staff. Therefore, when the sliding door 3 is opened, the operation can be performed, and when the sliding door 3 is closed, the operation cannot be performed. The control of the valid / invalid switching circuit 60 is not received.

Reference numeral 21 denotes a CPU, 22 denotes a ROM in which an operation program and the like are written, and 23 denotes an RA in which data is written.
M functions as a password storage means 13 for storing a set password described later. Reference numeral 24 denotes an input / output device for transmitting and receiving signals to and from an external device.
3 together with the control panel of the elevator. 25
Reference numeral denotes a detachable keyboard, which functions as a password setting means 12 for generating a password by an external operation and storing the password in the RAM 23 in advance.

Next, the operation will be described. First, as a precondition, the keyboard 25 is connected to the input / output device 24, and the set personal identification number is stored in the RAM 23 in advance. The set password is arbitrarily set. Here, it is assumed that “1234” is generated when the destination call buttons 71 to 74 of the car operation panel 2 are pressed in ascending order, and this number is set as the set password. Number. The sliding door 3 of the car operation panel 2 has an opening 2c.
Is closed to disable the maintenance / inspection switch 6, and the open / close detection switch 8 opens the normally open contacts 8a and 8b to disable the operation of the maintenance / inspection switch 6.

In FIG. 5, the procedure S1 is performed under the above premise.
When the sliding door 3 is opened in step 1, the normally open contacts 8a and 8b of the open / close detection switch 8 are closed in step S12. The operation switch 61, the lighting switch 62, and the fan switch 64 are more effective, and can be operated when the sliding door 3 is opened, but the other maintenance and inspection switches 6 remain disabled, and the processing from step S13 onward. Enabled by

In step S13, the destination call buttons 71 to 74 are operated in ascending order to generate a password so that the same number as the set password is obtained. In step S14, it is checked whether the personal identification number matches the set personal identification number. If they match, the validity / invalidity switching circuit 60 is activated in step S15, and the maintenance operation switch 6
3. The door switch 65 to the emergency call switch 68 are activated, and in accordance with this activation, the contacts 63d, 65
d-68d are closed and the effective display lamps 63b, 65b-
68b lights up. Switch 6 for maintenance and inspection in step S17
To perform maintenance and inspection work.

When the maintenance and inspection work is completed, the process moves from step S18 to step S19, and the sliding door 3 is closed. When the sliding door 3 is closed, the open / close detection switch 8 returns in step S20, and the normally open contacts 8a and 8b are opened. By this opening, the maintenance / inspection switch 6 is invalidated in step S21, and
At 22, the effective display lamps 61b to 68b are turned off. Once the maintenance check switch 6 is disabled, the procedure S
It is not validated unless it goes through the processes of 13 to S16. If the password does not match the set password in step S14, the procedure returns to step S13 via step S23, and the destination call buttons 71 to 74 are operated again to generate the password, and the maintenance and inspection switch 6 is turned on. Or the process proceeds to step S19, in which the sliding door 3 is closed and disabled.

According to the first embodiment, the operation of the maintenance / inspection switch 6 is invalidated under normal operation except for those used by the building manager, and the password is set by the combination of the car destination call buttons 71 to 74. A password is generated, and the password is compared with a preset password stored in the RAM 23 in advance. If the passwords match, the operation of the maintenance / inspection switch 6, which has been invalidated, is enabled. It is something to do. For this reason, since the maintenance and inspection switch 6 can be activated only by a specific person such as a maintenance worker who knows the set password, erroneous operation can be prevented without using the protective cover 18 shown in FIG. it can. Further, when the sliding door 3 for opening and closing the opening 2c of the face plate 2a is closed, the operation of the maintenance and inspection switch 6 which has been enabled becomes invalid again.
It can be easily invalidated and erroneous operation can be prevented.

Further, the detachable keyboard 25 is used as the password setting means 12, and the password is set by an external operation.
Since the password is stored in M23, the password setting means 12 can be shared, the set password can be easily changed, and the publicization due to leakage can be prevented. Furthermore, when the car button 7 is operated in combination with the sliding door 3 being opened, the password is output as a password. Therefore, in normal operation in which the sliding door 3 is closed, Even if the operation is performed in this manner, the personal identification number is not generated, so that the maintenance and inspection switch 6 is not activated by the passenger operating the car button 7. Further, since the maintenance / inspection switch 6 whose operation is validated is displayed by the validity display lamps 61b to 68b, it is easy to determine whether it is valid or invalid. In particular, since the maintenance / inspection switch 6 used by the building manager and the maintenance / inspection switch 6 used at the time of maintenance / inspection are displayed separately, erroneous operation can be prevented even by an unfamiliar building manager.

Embodiment 2 FIG. 6 shows a second embodiment of the present invention. In the drawing, the same reference numerals as those in FIGS. 1 to 5 indicate the same parts. In the second embodiment, the mode is switched to a password setting mode by a key operation mode changeover switch 10 provided on the car operation panel 2, and a signal by a combination operation of the car button 7 is set under the password setting mode. Is stored in the RAM 23 which is the personal identification number storage means 13.

According to the second embodiment, the set security code is stored in the RAM 23 by the car button 7, and the same security code as the set security code is generated by the car button 7. Can be validated, so that even if the set password is forgotten, the maintenance and inspection switch 6 can be validated and maintenance work is not hindered.

In the first and second embodiments, the maintenance and inspection switch 6 is invalidated when the sliding door 3 is closed and the open / close detection switch 8 is restored.
The invention is not limited to this, and the maintenance operation switch 63 may be invalidated by switching from the maintenance operation to the normal operation. In addition, the operation tool of the car operation panel 2 is not operated during maintenance work. For example, in FIG. 2, when the destination call button 72 is continuously operated for a predetermined time, it is invalidated. Is also good. In any case, the invalidation can be easily performed without depending on the open / close detection switch 8.

[0034]

Since the present invention is configured as described above, it has the following effects. The apparatus for preventing erroneous operation of a car operation panel of an elevator according to claim 1, generates a password by a combination operation of a car button provided on the car operation panel,
This security code is compared with the security code set in advance in the security code storage means. Based on the result of the comparison, the operation of the maintenance / inspection switch invalidated is enabled. The operation is invalidated again. For this reason, in normal operation, the maintenance and inspection switch is disabled, so it will not be erroneously operated, and can only be activated by a specific person who knows the set password, so use a protective cover Therefore, an erroneous operation of the maintenance and inspection switch can be prevented.

According to a second aspect of the present invention, there is provided an elevator car operating panel malfunction prevention apparatus in which when a sliding door for opening and closing a face plate of the car operating panel is closed, the operation of the enabled maintenance switch is disabled again. It is something to do. For this reason, there is an effect that the maintenance inspection switch can be easily disabled, and erroneous operation can be prevented without using the protective cover.

According to a third aspect of the present invention, there is provided an elevator car operation panel misoperation prevention device for disabling operation of a maintenance inspection switch again by operating a car operation panel operating instrument not used during maintenance inspection. It was made. For this reason, since the maintenance / inspection switch can be easily invalidated by diverting the operating tool provided for another purpose, the operation is easy particularly when the erroneous operation prevention device according to the present invention is attached to an existing elevator. There is an effect that there is.

According to a fourth aspect of the present invention, there is provided an elevator car operation panel preventive device for maintenance and inspection including the changeover switch between a normal operation and a maintenance operation when the switch is switched from the maintenance operation to the normal operation. The operation of the switch is invalidated. Also in this case, there is an effect that the maintenance / inspection switch can be easily disabled in the same manner as the erroneous operation prevention device for the elevator car operation panel according to the third aspect.

According to a fifth aspect of the present invention, there is provided a device for preventing an erroneous operation of an elevator car operation panel, wherein a detachable keyboard is connected and externally operated to generate a set password, and the set password is stored in a password storage means. It is intended to be. For this reason, it is possible to share the keyboard, easily change the set password, and prevent the information from being publicized due to leakage.

According to a sixth aspect of the present invention, there is provided an elevator car operation panel misoperation prevention apparatus which switches to a password setting mode by a key operation mode changeover switch provided on the car operation panel, and operates the car under this password setting mode. A signal resulting from a combination operation of a car button provided on the panel is stored in a password storage means as a set password. For this reason, when the set password is forgotten, it is only necessary to input a new set password, and there is an effect that the maintenance work is not hindered by the forgotten set password.

According to a seventh aspect of the present invention, there is provided an elevator car operation panel misoperation prevention apparatus, wherein when a car button is operated in combination with a sliding door that opens and closes an opening of a face plate of the car operation panel, the combination is performed. The signal is output as a personal identification number. Therefore, in normal operation in which the sliding door is closed, the switch for maintenance and inspection is not activated by the passenger operating the car button.
This has the effect.

According to an eighth aspect of the present invention, there is provided a device for preventing an erroneous operation of a car operating panel of an elevator, wherein a maintenance / inspection switch whose operation has been validated is indicated by a lamp. For this reason, it is possible to easily determine whether the maintenance inspection switch is valid or invalid.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of a device for preventing an erroneous operation of a car operating panel of an elevator according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing the entire car operation panel of the elevator according to the first embodiment of the present invention.

FIG. 3 is a longitudinal sectional view showing details of a car operation panel of the elevator according to the first embodiment of the present invention.

FIG. 4 is an electric circuit diagram of a device for preventing erroneous operation of an elevator car operation panel according to Embodiment 1 of the present invention.

FIG. 5 is a flowchart showing the operation of the device for preventing erroneous operation of the elevator car operation panel according to Embodiment 1 of the present invention.

FIG. 6 is a perspective view showing the entire elevator car operation panel according to Embodiment 2 of the present invention.

FIG. 7 is a perspective view showing an entire car operating panel of a conventional elevator.

[Explanation of symbols]

1 car, 2 car operation panel, 2a face plate, 2b case, 2c opening, 3
Sliding door, 4 keys, 5 rails, 6 maintenance switch, 6a mounting plate, 7 car buttons,
8 open / close detection switch, 10 mode changeover switch, 60 valid / invalid switching circuit, 61 operation switch, 61b valid display lamp, 62 lighting switch, 62b valid display lamp, 63 maintenance operation switch, 63b valid display lamp, 64 fan switch, 64b valid Indicator lamp, 65
Door switch, 65b Effective indicator lamp, 66
Independent hand switch, 66b valid indicator lamp, 67
Emergency stop switch, 67b effective display lamp,
68 Emergency call switch, 68b Effective indicator lamp.

Claims (8)

[Claims] 1. An apparatus for preventing an erroneous operation of a maintenance / inspection switch provided on an elevator car operation panel, an invalidating means for invalidating the operation of the maintenance / inspection switch, and a set password generated by an external operation. A password setting means for storing the password in advance in the password storage means, a password generating means for outputting a signal by a combination operation of a car button provided on the car operation panel as a password, and an output from the password generating means. Password comparing means for comparing the security code thus obtained with the set security code stored in the security code storage means, and the maintenance and inspection switch invalidated by the invalidating means based on the comparison result. A device for preventing erroneous operation of a car operating panel of an elevator, comprising a validating means for validating the operation of the elevator. 2. The invalidating means detects the opening and closing of a sliding door which opens and closes an opening formed in a face plate of a car operation panel to expose or conceal a maintenance inspection switch mounted in the car operation panel. The device for preventing an erroneous operation of a car operating panel of an elevator according to claim 1, wherein the operation of the maintenance and inspection switch is invalidated by detecting the door closing of the open / close detection switch. 3. The elevator according to claim 1, wherein the disabling means invalidates the operation of the maintenance and inspection switch by operating the operating device of the car operation panel in a state where it is not operated during the maintenance and inspection. Misoperation prevention device for car operation panel. 4. The disabling means performs maintenance and inspection including the maintenance operation switch when the maintenance operation switch for switching between normal operation and maintenance operation among the maintenance and inspection switches is switched from maintenance operation to normal operation. 2. The device for preventing erroneous operation of a car operating panel of an elevator according to claim 1, wherein the operation of the switch is invalidated. 5. An elevator car operation panel according to claim 1, wherein said password setting means is a detachable keyboard for generating a set password by an external operation and storing said set password in said password storage means. Erroneous operation prevention device. 6. The personal identification number setting means is switched to a personal identification number setting mode by a key operation mode changeover switch provided on the car operation panel, and a car button provided on the car operation panel under the personal identification number setting mode. 2. A device for preventing erroneous operation of an elevator car operation panel according to claim 1, wherein a signal resulting from the combination operation of (1) and (2) is stored in a password storage means as a set password. 7. A personal identification number generating means for opening and closing an opening formed in a face plate of a car operation panel to detect the opening and closing of a sliding door for exposing or concealing a maintenance inspection switch mounted in the car operation panel. 2. The combination signal according to claim 1, wherein when the car button provided on the car operation panel is operated in combination with the open / close detection switch performing door open detection, the combination signal is output as a password. Device to prevent accidental operation of elevator car operation panel. 8. The system according to claim 1, further comprising a lamp for displaying a maintenance / inspection switch whose operation has been validated by the validation means.
3. A device for preventing erroneous operation of a car operation panel of an elevator according to (1).