JPH0130804Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention consists of a machine room in which a plurality of devices such as motors are installed, and an operation room in which a plurality of operation panels for operating the plurality of devices in the machine room are installed. It relates to warning devices used in separate locations.

Conventionally, when a malfunction occurs in a device operated by a certain operation panel, it is necessary to adjust and adjust the malfunctioning device.
When inspecting, place an inspection tag on the operation panel used to operate the malfunctioning equipment to indicate that the malfunctioning equipment is undergoing adjustment and inspection, and to warn the operator not to operate the operation panel. was. This warning method only appeals to the visual sense of the worker, and if the worker is fatigued, there is a risk that he or she may miss the inspection tag, and the worker may be unable to perform other tasks. There is a problem in that a worker may accidentally drive the equipment being inspected without knowing that it is being inspected, putting the inspection worker at risk.

The present invention has been made in view of the above points, and the purpose of the present invention is to provide a warning device that can solve the above problems and ensure further safety. The feature of the present invention is that the inspection tag and warning sound are used simultaneously to appeal to both the visual and auditory senses of the worker.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a state in which an operation room and a machine room are arranged separately, and in the figure, 1 is a machine room and 2 is an operation room. A plurality of devices 3 such as motors are installed in the machine room 1, and an operation room 2
is equipped with a plurality of operation panels 4 for operating the plurality of devices 3, respectively, and a warning device configured as shown in FIG. 2. This warning device has the function of simultaneously warning with both text and sound that a certain device is under inspection, and as shown in Figure 2, it uses an inspection tag 5 and a proximity switch as a sensor switch. 6 and a simulated human voice sound generating device 7. The inspection tag 5 has a horizontally long rectangular shape and has a warning display function of displaying in text that a certain device is being inspected, and a switching function of turning on the simulated human voice generator 7. Here, check tag 5
A thin acrylic sheet is used as the material. One side of the inspection tag 5 is a warning display surface 5a, and the words "inspection in progress" are written on it. When a worker looks at the words "inspection in progress," a certain piece of equipment will be inspected. We are made to know through sight that it is inside. Warning display surface 5 of inspection tag 5
The surface opposite to a is a switching surface 5b, and two thin plate-shaped magnets 8, 8 are respectively attached to both horizontal ends of the switching surface 5b to ensure that the operation plate 4 is attracted to the switching surface 5b. provided, magnet 8
A thin metal plate 9 is provided between the magnet 8 and the magnet 8 . The proximity switch 6 is a type of sensor that utilizes the proximity effect, and senses the proximity of the thin metal plate 9 of the inspection tag 5 and outputs the sensing signal to the simulated human voice generator 7.

The simulated human voice sound generating device 7 is turned on by the proximity switch 6 to generate a warning simulated human voice sound, and is composed of an alarm command circuit 10, a simulated human voice signal generation circuit 11, and a speaker 12. . The alarm command circuit 10 is driven by a signal from the proximity switch 6 and outputs a simulated human voice signal generation command signal to the simulated human voice signal generation circuit 11. The simulated human voice signal generation circuit 11 is driven by a command signal from the alarm command circuit 10 and outputs a sound signal toward the speaker 12.
Using the audio signal, the speaker 12 repeatedly emits a warning simulated human voice sound, ``Tenkenchiyuukikendesu'', which has been created in advance by a computer.

The above-mentioned warning device is such that when a certain device among the devices 3 in the machine room 1 breaks down and a check tag 5 is set by an inspection worker, the proximity switch 6 detects that the check tag 5 has been set. A warning sound is heard from speaker 12.
Since the inspection tag 5 and the warning sound are both used to notify other workers that the inspection is in progress, the worker will not notice the inspection tag 5.
Since it is extremely rare to accidentally operate the operation panel of the equipment being inspected, safety is further improved.

The invention described in the above embodiments also includes the following concepts.

(1) In the above embodiment, the proximity switch 6 is used as the sensor switch, but the present invention is not limited to this, and a light emitting/receiving element or the like can also be used.

(2) In addition, a metal plate was provided on the switching surface 5b of the inspection tag 5 so that the proximity switch 6 could sense it, but if a light emitting element or the like is used as a sensor switch, switching can be performed without any provision. .

(3) As the inspection tag 5, not only an acrylic plate but also a metal plate etc. can be used.

(4) If a plug is provided on the switching surface 5b of the inspection tag 5 and a jack is provided on the operation panel 4 to insert the plug into a plug-in switch, not only the switch function but also the inspection tag 5 can be operated by the plug. It can also be fixed on the operation panel.

As explained above, according to the present invention, the visual and auditory warnings are given to the worker at the same time using the inspection tag and the warning sound, so that the worker does not accidentally miss the inspection tag. This makes it possible to reduce the number of accidents as much as possible, and eliminates the risk of the worker accidentally driving the equipment being inspected and endangering the inspection worker. In addition to being effective in making work easier, this invention also provides the inspection tag with a switch function and a warning display function, making safe operation easy and reliable. .

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram for explaining a state in which a machine room and an operation room are arranged separately. FIG. 2 is a configuration diagram of an embodiment of the warning device according to the present invention. Figure 3 shows
3 is an explanatory diagram for explaining the state of the warning display surface and B of FIG. 3 is a diagram showing the state of the inspection tag used in the above embodiment. 1... Machine room, 2... Control room, 3... Equipment, 4
...Operation panel, 5...Inspection tag, 6...Proximity switch (sensor switch), 7...Simulated human voice sound generator, 8...Magnet.

Claims (1)

[Scope of claim for utility model registration] A machine room in which multiple devices such as motors are installed,
A warning device used in a separate operation room with a plurality of operation panels for operating a plurality of devices in the machine room, and at least one of the devices is under inspection. an inspection tag installed and displayed on an operation panel for operating the device under inspection among the plurality of operation panels, and detecting the presence of the inspection tag and outputting a sensing signal thereof. a sensor switch, turned on by the sensor switch, and
A warning device comprising: a simulated human voice generating device that emits a warning simulated human voice in an on state.