JPH0229594B2 - MANKONBEAYOANZENSOCHINODOSAHYOJISOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Technical Field of the Invention> The present invention relates to an operation display device for a safety device for a passenger conveyor.

<Technical background of the invention and its problems> Vehicle conveyors are required to be installed by law to ensure the safety of passengers, and various safety devices are installed to protect the equipment that makes up passenger conveyors. As is well known, there is.
When any of these safety devices is activated, the operation control circuit is immediately disconnected and the passenger conveyor is stopped.

On the other hand, when the passenger conveyor is stopped due to the operation of a safety device, it is necessary to confirm which safety device caused the stop before restarting operation. However, safety devices for passenger conveyors include automatic return switches such as stop button switches, skirt guard panel switches, and inlet switches, so even if these operate and the passenger conveyor is stopped, the switch will immediately return to its original state. In many cases, the system will return to normal, making it impossible to confirm which safety device was activated. For this reason, methods have been devised to detect even instantaneous switch operations, store them in memory using a latching relay or flip-flop circuit, and display the output on an LED, or to display the operation using an electromagnetically actuated fault indicator.

However, there were various problems with the display method. For example, if you try to install LEDs on the railing or exterior of a passenger conveyor, the large number of LEDs will require a lot of display space. As a result, problems arise in terms of the design of the passenger conveyor. Furthermore, depending on the mounting position, it may not be easy to check the displayed content. On the other hand, if you try to install a display unit on a monitoring panel, etc., each unit will have around 20 indicator lights, so if you want to display multiple units, you will need a large number of indicator lights and display space. Become. Additionally, since the display is located far from the passenger conveyor, restoration work is time-consuming. Conventional methods for displaying operations have these problems, but no countermeasures have been taken, and this has hindered their widespread use, even though they are extremely desirable display methods in terms of maintenance and management.

<Object of the invention> The present invention has been made in view of the above points, and its object is to detect and memorize the operations of various safety switches provided on a passenger conveyor,
To provide an operation display device using an LED or the like that does not adversely affect the design of a passenger conveyor and does not require a large amount of display space, and is small and easy to check display contents and handle.

<Summary of the Invention> The present invention guides a display signal output when a safety switch is activated to a connector provided on the exterior of a passenger conveyor or on a railing, and connects a display device brought by a maintenance manager to the When connected to a connector, this operation display device displays an LED corresponding to an activated safety switch on the display by emitting light.

Furthermore, the present invention is an operation display device in which a display device is provided with a memory that receives and stores display signals, and a driver that causes an LED to emit light according to the contents stored in the memory.

<Embodiments of the Invention> Examples of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of an operation display device according to the present invention, in which 10 is a safety switch for a passenger conveyor, 11 is a safety switch for a passenger conveyor;
12 is a storage device for storing detection signals and holding display output; 13 is a power supply device for driving the detection device 11 and the storage device 12; 14A and 14;
B is a connector that relays display output from the storage device 12; 15 is a display device that is portable. In addition, the safety switch 10 of the passenger conveyor, the detection device 11,
The storage device 12, the power supply device 13, and the fixed side 14A of the connector are provided on the passenger conveyor main body side 20. Figures 2 and 3 are diagrams showing the state in which the connector on the passenger conveyor main body side according to the present invention is attached.
4A is the main body side connector, 14C is a cap for the main body side connector 14A, and 16 is the main body side connector 1.
4A is a connection cable, 21 is a handrail, 22 is an exterior plate, 23 is an operation panel, 24 is a deck board, and 25 is a truss. The main body side connector 14A is located near the operation panel 23, fixed to the exterior plate 22, and guided by a cable 16 to a storage device 12 (not shown) provided in the passenger conveyor machine room.

FIG. 4 is a diagram of a display according to the present invention, in which 15 is a display main body, 14B is a display-side connector for coupling with the main body-side connector 14A, and 14D is a cable. 31L~41L, 32R~4 on the display
The indicator lights 1R are actually placed in correspondence with the safety switch positions of the passenger conveyor. L corresponds to the safety switch on the left side of the passenger conveyor, and R corresponds to the safety switch on the right side. Also, 31
L to 37L and 32R to 37R are indicator lights corresponding to safety switches for protecting passengers, such as a stop button switch, an inlet switch, and a skirt guard panel switch. On the other hand, 38L~4
1L and 39R to 41R are indicator lights corresponding to safety switches, such as a drive chain disconnection detection switch, a step chain disconnection detection switch, and a step lift detection switch, for protecting equipment when an abnormality occurs.

Since safety switches for passenger protection and safety switches for equipment protection have different restoration work setups and methods, the indicator lights are arranged differently and separated by thin lines and thick lines as shown in the figure to make it easier to tell them apart. . Note that 31, 41, etc. are names of safety device switches, and 50 is a reset switch for resetting the storage device.

Next, the operation of this embodiment described above will be explained. As an example, suppose that a passenger accidentally jumps on the skirt guard panel. The safety switch (skirt guard panel switch) turns off instantly, causing the passenger conveyor to come to an emergency stop. At this time,
The skirt guard panel switch detection circuit (not shown) of the detection device 11 detects this, and sends a signal to the skirt guard panel switch storage device (not shown) of the storage device 12 for storage. Along with this, a display output is applied to the corresponding pin of the connector 14A.

On the other hand, the maintenance manager, who learns that the operation has stopped due to the failure buzzer or a message from a staff member, rushes to the relevant passenger conveyor with the display shown in FIG. 4. After confirming whether there are any injuries, etc., connect the connector 14B of the display to the cap 14 of the connector on the main body side.
Insert it into the upper connector 14A from which C was removed.

Then, since the display output is being output, the indicator light provided on the display unit lights up. If 33L in Fig. 4 lights up, it can be immediately determined that the skirt guard panel switch on the upper left side has been activated and the engine has stopped.

At this time, indicator lights 38L to 41L or 39R to 4 indicate the operation of safety switches to protect the equipment.
If 1R and the like are not lit, it can be determined that there is no problem in restoring operation, so the maintenance manager only needs to perform a starting operation to restore the passenger conveyor.

The above is due to an unexpected mistake by the passenger or a child's prank, but if an abnormality occurs in the right side step chain and an emergency stop occurs, the indicator light 40R will light up, indicating that immediate recovery is not possible. Able to make judgments and immediately contact the maintenance society for repairs.

Incidentally, since the memory continues to be stored in the corresponding storage device as the safety switch operates, the stored contents can be reset by pressing the reset switch 50 provided at the bottom of the display after confirming the displayed contents.

According to this embodiment, since it is only necessary to provide a connector receiving portion on the surface of the main body of the passenger conveyor, there is no problem in terms of design and the structure is simple. In addition, since it is possible to check which safety switch has activated on-site based on the actual switch installation position, appropriate measures can be taken without misidentification, which is effective in terms of safety management and minimizes downtime. .

Furthermore, according to this embodiment, since one display can be used in common for a plurality of passenger conveyors, the monitoring panel can be simplified, and costs related to maintenance management and equipment can be significantly reduced.

FIG. 5 shows an example in which a display content storage device is provided in the display device of the above-mentioned embodiment, and a circuit within a broken line is added. Although the number of memories 31m and drivers 31n is equal to the number of each safety switch, only one circuit is shown here. In addition, the memory set switch 5
1. One set each of the lighting switch 52, memory reset switch 53, and battery 54 is sufficient.

As mentioned in the above example, for confirmation work, insert the connector 14B into the connector 14A and turn on the LED 31P. If you do, the displayed content will disappear. Therefore, by pressing the memory reset switch 51 after inserting the connector, the memory 31m in the display is set and the displayed contents are stored.

Thereafter, even if the main body storage device is reset or the connector is removed, the memory 31m continues to be held by the battery 54. If you need to reconfirm the display contents after the fact, turn on the light switch 5.
When 2 is pressed, the driver 31n is driven by the battery, and the LED 31P can be turned on and displayed. Moreover, by pressing the memory reset switch 53 when the memory is completely no longer needed, the memory contents in the memory 31m can be erased.

According to this embodiment, it is possible to prevent the storage contents from being erased by mistake, which is effective in investigating the cause. This is especially useful when a building manager is explaining the content to maintenance company employees.

In addition, in the above-mentioned embodiment, the connector is provided on the exterior part, but the connector is not limited to this.
The same effect can be obtained even if it is installed in a peripheral area that is easy to handle, such as an operation panel.

<Effects of the Invention> As explained above, according to the present invention, a portable display device is connected and displayed only when checking the operation, so there is no need for a display section on the main body of the passenger conveyor, which improves the design. It does not affect the quality of the work, can be displayed on site when necessary, and is easy to check and handle the displayed contents, which increases the efficiency of recovery work and is effective in terms of safety.

Furthermore, since one display device can be used in common for a plurality of passenger conveyors, monitoring panels, etc. can be simplified, and it is also economically effective.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an operation display device according to the present invention, FIG. 2 is a connector installation diagram according to an embodiment of the present invention, FIG. 3 is a cross-sectional view taken from FIG. FIG. 5 is a schematic diagram of a display device according to an embodiment. FIG. 5 is a circuit diagram of another embodiment of a display device of the present invention. 10...Safety switch, 11...Movement detection device, 12...Storage device, 14A, 14B...Connector, 14D...Cable, 15...Display device, 3
1L to 41L...Indication light, 32R to 41R...Indication light, 50...Reset switch, 31m...Memory, 31n...Driver, 51...Memory set switch, 52...Lighting switch, 53
...Memory reset switch, 31P...
LED.

Claims (1)

[Claims] 1. It has a motion detection device that independently detects the motion of various safety devices installed on the passenger conveyor, and a storage device that holds the output of this motion detection device,
In the operation display device for a safety device for a passenger conveyor that independently displays the operation of the safety device, the connector includes a connector provided on an exterior portion or a parapet portion of the passenger conveyor and relays a display signal output from the storage device; 1. An operation display device for a safety device for a passenger conveyor, comprising a connector and a portable display device provided with an indicator light that lights up in response to the display signal when connected to the connector.