JPH0686191U - Work site alarm device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a power supply cable that can be easily installed at a desired position without requiring wiring. [Structure] A human body detection sensor 4 for detecting the presence of a human body in a predetermined area, a tape reproducing device 5 for generating a predetermined warning sound, and a power source for the human body detection sensor 4 and the sound generation means 5 in the device body 3. 6 and scaffolding handrail 1
2 is provided with a permanent magnet 7 that is detachably attached, and is installed in a predetermined dangerous area or the like, and the tape reproducing device 5 is operated when the human body detection sensor 4 detects the intrusion of the human body into the predetermined area. To configure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is intended to provide a voice for danger notification in an area where work is dangerous, such as a unloading stage for hoisting materials, a scaffolding point for loading and unloading materials for steel frame assembly, and an opening for loading and unloading materials. The present invention relates to a work site alarm device for generating a safety alarm.

[0002]

[Prior art]

 The above-mentioned work site alarm device has conventionally installed an alarm device recording desired warning contents in a predetermined hazardous area, and connected an AC power supply (100 / 200V) to the alarm device via a cable. Was configured.

[0003]

[Problems to be solved by the device]

 However, in the case of the conventional example, the cable connecting the alarm device and the power supply is an obstacle, and especially when the alarm device is installed on a work scaffold, there is a risk of catching carrying materials on the cable. Therefore, it is necessary to fix the cable with a numbered wire along with the handrail, etc., which is a drawback that it takes time to install the alarm device.

In addition, when changing the installation location of the alarm device, it takes time and labor to rearrange the cable, and because of the complexity, the installation location of the alarm device tends to be small, and there is a problem in safety. .

The present invention has been made in view of the above circumstances, and an alarm device for a work site according to the first aspect of the present invention eliminates the need for wiring a power supply cable and allows a desired location to be provided. It is an object of the present invention to provide a device that can be easily installed, and an alarm device for a work site according to the second aspect of the present invention that can be installed and relocated more easily.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, an alarm device for a work site according to a first aspect of the present invention includes a human body detection sensor for detecting the presence of a human body in a predetermined area, and a predetermined danger notification for the device body. A voice generating means for generating a voice, a power source for the human body detection sensor and the voice generating means, and a mounting member detachably attached to another member are provided, and the presence of the human body in a predetermined area is detected by the human body detecting sensor. It is configured to activate the voice generating means.

In the work site alarm device of the invention according to claim 2, the mounting member according to claim 1 is composed of a permanent magnet in order to achieve the above-mentioned object.

[0008]

[Action]

 According to the construction of the alarm device for a work site of the invention according to the first aspect, the device body itself is provided with a power source, the connection to the power source by the cable is not required, and the device is mounted at a desired position by the mounting member, and the dangerous predetermined When a worker approaches the area, a desired danger notification voice can be automatically generated to call attention.

Further, according to the construction of the alarm device for a work site of the invention according to claim 2, attention is paid to the fact that iron members such as handrails and columns of scaffolding are frequently used at the work site. It can be easily attached to and detached from other members by the magnetic force of the permanent magnet.

[0010]

【Example】

 Next, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a vertical cross-sectional view showing a first embodiment of a work site alarm device according to the present invention. An electromagnetic shield plate 1 is provided with a case 2 capable of swinging and opening and closing to form a device body 3. The device body 3 is provided with a human body detection sensor 4 for detecting the presence of a human body in a predetermined area, a tape reproducing device 5 as a sound generating means, and a power supply 6, and an electromagnetic shield plate 1 as a mounting member. The permanent magnet 7 is attached to the case 2, while the case 2 is provided with the amplifier 8 and the speaker 9.

As shown in the circuit diagram of FIG. 2, the human body detection sensor 4 is composed of a projector 4a and a photodiode 4b, and a tape reproducing device 5, a power source 6 and a photodiode 4b are connected in series. It is connected so that when a worker enters a predetermined danger zone, the photodiode 4b is switched to the energized state by the reflected light from the worker and the tape reproducing device 5 is automatically operated for a set time. Has been done.

The tape reproducing device 5 is adapted to run an endless tape on which a predetermined danger notification sound is recorded for a set time when it is started.

With the above configuration, when a human body enters a predetermined danger area, a predetermined danger notification sound is automatically generated to call attention and safety can be achieved. Next, a specific example of its use will be described.

FIG. 3A is a perspective view of an essential part of the first specific use example, in which a mounting plate made of iron is attached to a predetermined position of the handrail 12 of the scaffold 11 near the position where the unloading stage 10 is provided. 13 is attached, and an alarm device A for the work site is provided on the attachment plate 13 by a permanent magnet 7, and when a human body invades, for example, a warning sound such as "Be careful of handrails" is generated. Is configured to let.

FIG. 3B is a perspective view of a main part of the second specific use example, in which an iron mounting plate 16 is attached to a predetermined position of the handrail 15 of the scaffolding 14 at which the material is lifted. An alarm device A for a work site is provided on the mounting plate 16 by a permanent magnet 7 and is configured to generate a warning sound such as "let's attach a lifeline" when a human body invades.

FIG. 3C is a perspective view of a main part of a third specific usage example, in which an iron support column 18 is erected at a predetermined position near the opening 17 for lifting the material, and A worksite alarm device A is provided on the support column 18 by a permanent magnet 7 and is configured to generate a warning sound such as "Be careful of the opening" as the human body approaches the opening 17. ing.

FIG. 4 is a vertical cross-sectional view showing a second embodiment of the work site alarm device according to the present invention. The difference from the first embodiment is as follows. That is, the human body detection sensor is configured by using the infrared photodiode 19 in place of the photodiode 4b without the light projector 4a, and the voice synthesizing IC 20 is used as the voice generating means. The electromagnetic shield plate 1 between the permanent magnet 7 is eliminated. The rest of the configuration is the same as that of the first embodiment, and the description thereof is omitted by giving the same drawing numbers.

According to the second embodiment, since the voice synthesizing IC 20 is used, the voice generating means can be downsized as compared with the tape reproducing device 5 as in the first embodiment, and the entire device can be made compact. It has the advantage of being configurable. Further, since there is no harmful effect due to magnetism, there is an advantage that the electromagnetic shield plate 1 can be dispensed with and can be constructed at a low cost.

The danger notification sound to be recorded in the sound generating means is not limited to that in the above embodiment, but may be arbitrarily set according to the place of use.

In the above embodiment, the permanent magnet 7 is used as the attachment member so that it can be easily attached to and detached from other members such as the handrails 12 and 15 and the support column 18. However, for example, a wire or rope is used. But good.

[0022]

[Effect of device]

 As described above, according to the alarm device for a work site of the invention according to the first aspect, the apparatus main body is provided with the power source, and the connection with the power source by the cable is not required, and the attachment member is attached to the desired position. Therefore, it can be easily installed in a desired place, and it can be installed in many dangerous areas with less effort, and good safety can be achieved.

Further, according to the work site alarm device of the invention according to claim 2, since it is attached and detached by the magnetic force of the permanent magnet by using another member made of iron such as a handrail of a scaffold or a pillar which is frequently used in the work site, It can be installed and relocated more easily.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a first embodiment of a work site alarm device according to the present invention.

FIG. 2 is a circuit diagram.

FIG. 3 is a perspective view illustrating a specific usage example.

FIG. 4 is a vertical cross-sectional view showing a second embodiment of a work site alarm device according to the present invention.

[Explanation of symbols]

 3 ... Device main body 4 ... Human body detection sensor 5 ... Tape reproducing device as sound generating means 6 ... Power source 7 ... Permanent magnet 12 as mounting member 12, 15 ... Handrail as other member 18 ... Strut as other member 19 ... Human body Infrared photodiode 20 as detection sensor 20 ... Voice synthesizing IC as voice generating means

Claims (2)

[Scope of utility model registration request] 1. A human body detection sensor for detecting the presence of a human body in a predetermined area, a voice generation means for generating a predetermined danger notification voice, and a power supply for the human body detection sensor and the voice generation means in the main body of the apparatus. A mounting member which is detachably attached to another member, and is configured to operate the voice generating means in accordance with the presence of a human body in a predetermined area detected by the human body detection sensor. On-site alarm device. 2. An alarm device for a work site, wherein the mounting member according to claim 1 is a permanent magnet.