JPH0686190U - Alarm - Google Patents

Abstract

(57) [Summary] [Purpose] To enable remote operation of an alarm that is installed on the hook of a crane and that notifies the approach of the hook. [Configuration] A wireless receiver is built in the alarm device 1, and an alarm issued from the alarm device 1 is turned on / off by operating a wireless transmitter 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an alarm device for issuing an alarm by voice and / or light, and more particularly, to a configuration for controlling on / off of an alarm generating means in the alarm device.

[0002]

[Prior art]

 For example, an alarm is used to notify people around the vehicle of the approach of a moving object such as a hook of a crane to call attention. Alarms are typically adapted to provide voice-based alerts, such as signal tones and / or verbal messages, or light-based alerts, such as flashing lights.

Such an alarm device is often installed in a place that is difficult for humans to reach, such as a high place, in order to prevent an alarm given from the alarm device from being obstructed by some obstacle.

[0004]

[Problems to be solved by the device]

 However, as described above, when the alarm device is installed in a place where humans cannot reach it, there is a problem that the operation for issuing the alarm and stopping the alarm cannot be easily performed.

Therefore, an object of the present invention is to provide an alarm that can solve the above-mentioned problems.

[0006]

[Means for Solving the Problems]

 The present invention is directed to an alarm device having means for issuing a sound and / or light alarm, and a wireless receiver for receiving a signal transmitted from a wireless transmitter, and a wireless receiver for receiving the signal. A control circuit for turning on / off the means for issuing the alarm by a signal is further provided.

The alarm device according to the present invention is usually used in combination with a wireless transmitter. Further, the present invention is advantageously used for the purpose of notifying the approach of the hook part of the crane, in which case the alarm device is installed on the crane side and the wireless transmitter is carried by the worker who is away from the alarm device. To be done.

[0008]

[Function and effect of device]

 Therefore, according to the present invention, the means for issuing an alarm is controlled to be turned on / off based on the signal transmitted from the wireless transmitter, so that even if the alarm device is installed in a place where humans cannot reach, The alarm can be issued or stopped by remote control. Therefore, for example, when the alarm device is installed on the crane side, the operation for the on / off control described above can be performed by an operator away from the crane at an arbitrary time as necessary.

Although the alarm device according to the present invention has a built-in wireless receiver, it can be handled in the same manner as a conventional alarm device without such a wireless receiver. Therefore, the work for installing the alarm device at a predetermined place is not complicated.

[0010]

【Example】

 FIG. 1 is a schematic perspective view showing an alarm device 1 according to an embodiment of the present invention and a preferred usage thereof. Here, the alarm device 1 is used in connection with the crane 2.

The crane 2 is, for example, a jib crane that can rotate 360 °, and a hook portion 4 is provided at the end of the wire rope 3 for hoisting. The alarm device 1 is attached to the hook portion 4.

The worker 5 is located at a position distant from the crane 2. This worker 5 may be an operator of the crane 2. The worker 5 has a wireless transmitter 6. The alarm device 1 is remotely operated by the wireless transmitter 6.

FIG. 2 is a block diagram showing the structure of the alarm device 1 and the wireless transmitter 6. As shown in FIG. 2, as the wireless transmitter 6, a device that transmits an infrared or ultrasonic signal is used. The alarm device 1 has a built-in wireless receiver 7 that receives infrared or ultrasonic signals transmitted from the wireless transmitter 6. The output signal from the wireless receiver 7 is given to the control circuit 8.

The alarm device 1 issues a sound alarm. Therefore, for example, the sound source provided by the sound source generator 9 is provided with a sound source generator 9 that generates a sound source such as a signal sound such as “bit-bit” and / or a message such as “danger. Please be careful.” Is amplified by the amplifier 10 and output from the speaker 11. The output signal from the control circuit 8 described above is applied to the amplifier 10, and thereby the sound output from the speaker 11 is turned on / off. The control circuit 8 may also have a function of controlling the volume of the sound output from the speaker 11. In this case, the volume of the sound can be adjusted from the wireless transmitter 6.

In the above-described embodiment, the alarm device 1 may be replaced with an alarm device 12 as shown in FIG. Like the alarm device 1 shown in FIG. 2, the alarm device 12 includes a wireless receiver 7 and a control circuit 8, and the wireless receiver 7 receives a signal transmitted from the wireless transmitter 6. It

The alarm device 12 shown in FIG. 3 issues an alarm by light. Therefore, the alarm device 12 includes the lamp 13. The lamp 13 is turned on by the voltage output from the output drive circuit 14. The output drive circuit 14 is supplied with a control signal from a lighting / flashing circuit 15 for controlling lighting and / or flashing of the lamp 13. The control signal from the above-mentioned control circuit 8 is given to the output drive circuit 14, whereby the lamp 13 is turned on / off.

Although the alarm device 1 or 12 in each of the embodiments described above issues an alarm by voice or light, respectively, it may also issue an alarm by both voice and light.

Further, the alarm device according to the present invention can be used not only in the crane as in the above-described embodiment but also in connection with other moving objects and the like.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an alarm device 1 according to an embodiment of the present invention and a mode of use thereof.

FIG. 2 is a block diagram showing the structure of the alarm device 1 and the wireless transmitter 6 shown in FIG.

3 is a block diagram showing a structure of an alarm device 12 and a wireless transmitter 6 according to another embodiment of the present invention, which is equivalent to FIG.

[Explanation of symbols]

 1, 12 Alarm device 2 Crane 4 Hook part 5 Worker 6 Wireless transmitter 7 Wireless receiver 8 Control circuit 9 Sound source generator 10 Amplifier 11 Speaker 13 Lamp 14 Output drive circuit 15 Lighting / flashing circuit

Claims (3)

[Scope of utility model registration request] 1. An alarm device comprising means for issuing an alarm by voice and / or light, wherein a wireless receiver receives a signal transmitted from a wireless transmitter, and the alarm is generated by a signal received by the wireless receiver. An alarm device further comprising: a control circuit for controlling ON / OFF of the means for emitting. 2. A combination of the alarm device according to claim 1 and a wireless transmitter. 3. The combination of the alarm device and the wireless transmitter according to claim 2, wherein the alarm device is installed on a crane side, and the wireless transmitter is carried by an operator away from the alarm device.