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JP2007079869

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2007079869
The present invention provides an alarm device capable of preventing position specification from
the outside and preventing attenuation of an alarm sound. An alarm device (10) comprises a wall
surface (52) of an installation corner (50) of an automatic unmanned machine (60) and a main
body (12) that vibrates the wall surface (52). The main body 12 has a giant magnetostrictive rod
20 inside, an excitation coil 24 is provided around the giant magnetostrictive rod 20, and an
excitation drive unit 30 in contact with the wall surface 52 is provided at the tip. There is. The
excitation drive unit 30 is in close contact with the giant magnetostrictive rod 20 by a spring 36.
When a current is supplied from the exciter 28 to the exciting coil 24 through the lead wire 26, a
magnetic field is generated in the exciting coil 24, whereby the giant magnetostrictive rod 20
expands and contracts in the axial direction. Then, when the expansion and contraction
movement of the giant magnetostrictive rod 20 is transmitted to the wall surface 52 by the
excitation drive unit 30, the wall surface 52 vibrates to emit an alarm sound as a sound source.
[Selected figure] Figure 1
Alarm device
[0001]
The present invention relates to an alarm device, and more particularly, to prevention of external
localization and prevention of alarm sound attenuation.
[0002]
Conventional alarm devices (or alarms) have a source of alarm sound inside the main body.
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Recently, as the demand for unmanned automatic equipment increases, crimes such as
destruction of unmanned automatic equipment are also increasing. Along with this, the number
of devices equipped with the above-mentioned alarm is increasing. Normally, as shown in FIG. 3
(A), the alarm 120 is attached to the outside of the wall 102 of the installation corner 100 of the
automatic unmanned equipment 110 or, as shown in FIG. 3 (B), the alarm sound is led to the
outside. Generally, an opening (or wave guide space) 104 is provided on the wall 102 and an
alarm 120 is installed inside the opening.
[0003]
However, the background art as described above has the following disadvantages. First, as shown
in FIG. 3A, when installed outside the wall surface 102, the alarm 120 can be easily identified
from the outside, and the alarm 120 itself is likely to be destroyed. Moreover, as shown to FIG. 3
(B), even when it installs inside the wall surface 102, the attachment position of the alarm 120
will be specified from the outside from the position of the said opening part 104. FIG.
Furthermore, as shown in FIG. 3C, when the opening 104 is closed, the alarm sound is
attenuated, and there is a possibility that the function of the alarm can not be performed.
[0004]
The present invention focuses on the above points, and an object thereof is to provide an alarm
device capable of preventing position specification from the outside and preventing attenuation
of an alarm sound.
[0005]
In order to achieve the above object, the alarm device of the present invention has a wall surface
for emitting an alarm sound by vibration, a vibration generating means, and a transmission
member for transmitting the vibration generated by the vibration generating means to the wall
surface. A main body attached to the wall surface is provided, and the main body is disposed
inside the hollow wall surface bordering the wall surface.
One of the main modes is characterized in that the vibration generating means is a giant
magnetostrictive vibrator. Another embodiment is characterized in that the wall surface is a
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2
housing of equipment or a wall surface of a building. The above and other objects, features and
advantages of the present invention will be apparent from the following detailed description and
the accompanying drawings.
[0006]
In the present invention, the main body having the vibration generating means and the
transmission member for transmitting the vibration to the wall is attached to the inside or the
inside of the wall, and the wall is vibrated directly by vibrating the wall directly to generate alarm
sound. Even if the main unit is attached to the inside or the inside of the wall, the alarm sound
will not be attenuated. Moreover, since the alarm sound waveguide processing to a wall surface
becomes unnecessary, the effect that position specification from the outside becomes difficult is
acquired.
[0007]
Hereinafter, the best mode for carrying out the present invention will be described in detail
based on examples.
[0008]
First, Embodiment 1 of the present invention will be described with reference to FIG.
FIG. 1A is a perspective view showing the appearance of this embodiment, and FIG. 1B is a crosssectional view showing an internal structure. The alarm device 10 of the present invention is
composed of a wall surface 52 of an installation corner 50 of an automatic unmanned machine
60 such as an ATM (automatic teller machine) and a main body 12 attached to the inside of the
wall surface 52. The wall surface 52 emits an alarm sound by the vibration transmitted from the
main body 12.
[0009]
The main body 12 has a vibrator inside the housing 14 as shown in FIG. 1B, and by fixing the
planar attachment portion 18 to the wall surface 52 by appropriate means, A telescopic
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movement is transmitted to the wall 52. In the present embodiment, the following description
will be made on the assumption that a giant magnetostrictive vibrator is used as the vibrator.
Inside the housing 14 is provided a giant magnetostrictive rod 20 made of a giant
magnetostrictive material, and a bias magnet 22 is attached to both ends thereof, and an
excitation coil 24 is provided around the periphery. Further, one end of the giant
magnetostrictive rod 20 is fixed to the side surface (or bottom surface) 16 of the housing 14 and
an excitation drive unit 30 is provided at the other end. The excitation drive unit 30 has a flange
portion 32 projecting in a direction substantially orthogonal to the expansion and contraction
direction of the giant magnetostrictive rod 20, and a spring 36 is mounted. One end of the spring
36 is connected to the flange portion 32 and the other end is connected to a support portion 34
extending inward from the edge of the housing 14, whereby the excitation drive portion 30 and
the drive drive portion 30 are The adhesion with the magnetostrictive rod 20 is improved.
[0010]
On the other hand, the lead wire 26 of the excitation coil 24 is connected to an exciter 28
provided outside the main body 12, and the excitation current required for expansion and
contraction of the giant magnetostrictive rod 20 is excited by the exciter 28. The coil 24 is
supplied. The excitation current is supplied from the exciter 28 when vibration or abnormality is
detected by a vibration sensor (not shown) or the like. The expansion and contraction mechanism
of the giant magnetostrictive rod 20 as described above is known.
[0011]
Next, the operation of this embodiment will be described. When a current is supplied from the
exciter 28 to the exciting coil 24 according to the detection result of a vibration sensor or the like
not shown, a magnetic field is generated from the exciting coil 24, whereby the giant
magnetostrictive rod 20 is axially Cause stretching movement in a direction approximately
orthogonal to Then, the expansion and contraction movement of the giant magnetostrictive rod
20 directly vibrates the wall surface 52 via the excitation drive unit 30, whereby an alarm sound
is generated from the whole wall surface 52.
[0012]
Thus, according to the first embodiment, the following effects can be obtained. (1)The main body
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12 having the giant magnetostrictive rod 20 and the excitation drive unit 30 is attached to the
inside of the wall surface 52, and the expansion and contraction movement of the giant
magnetostrictive rod 20 is transmitted through the excitation drive unit 30 to directly vibrate the
wall surface 52, The wall 52 itself is the source of the alarm sound. Therefore, even if the main
body 12 is attached to the inside of the wall surface 52, the alarm sound is not attenuated.
(2)Since the alarm sound waveguide processing to the wall surface 52 becomes unnecessary, it
becomes difficult to specify the position from the outside, and the destruction from the outside
can be suppressed. (3)In particular, since the giant magnetostrictive vibrator is used as the
vibrator, the amount of change in shape with respect to the applied magnetism is very large as
compared with the conventional magnetostrictive material. Therefore, a louder sound can be
generated. In addition, even when the wall of the building is hard, it is possible to vibrate it.
[0013]
The present invention is not limited to the embodiments described above, and various
modifications can be made without departing from the scope of the present invention. For
example, the following are also included. (1)The shapes, dimensions, and materials shown in the
above embodiments are merely examples, and can be changed as appropriate. (2)In the above
embodiment, the giant magnetostrictive vibrator is used as the vibrator, but various other known
vibrators may be used. (3)The attachment place of the alarm device shown in the abovementioned embodiment is also an example, and may be changed as needed. For example, as
shown in FIG. 2 (A), the main body 12 may be provided behind the ceiling 70 and the ceiling 70
may be vibrated to be a source of alarm sound, or as shown in FIG. 2 (B) If 80 is hollow, the main
body 12 may be provided on the inside to vibrate the wall surface 80. Of course, the main body
12 may be provided on both the ceiling 70 and the wall surface 80. That is, if it is the inside of
the space bordering on the wall surface or the inside of the wall surface, it can be attached at any
place. Alternatively, the main body 12 of the alarm device may be provided inside the housing of
the automatic unmanned equipment 60 itself. (4)The alarm device of the present invention is
applicable not only to automatic unmanned equipment, but also to various equipment and
installation places thereof, general residences such as apartments, and various buildings such as
offices and factories.
[0014]
According to the present invention, the main body having the vibration generating means and the
transmission member for transmitting the vibration to the wall surface is provided inside or
inside the wall surface, and the wall surface is vibrated to generate alarm sound. Applicable to
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applications. In particular, since the alarm sound does not attenuate and it is difficult to specify
the mounting position from the outside, it is suitable for the application of the alarm device for
automatic unmanned equipment.
[0015]
It is a figure which shows the Example of this invention, (A) is a perspective view which shows an
external appearance, (B) is sectional drawing which shows an internal structure. FIG. 7 is a view
showing another embodiment of the present invention. It is a figure which shows an example of
background art.
Explanation of sign
[0016]
Reference Signs List 10: alarm device 12: main body 14: housing 16: side (or bottom) 18:
attachment portion 20: super magnetostrictive rod 22: bias magnet 24: excitation coil 26: lead
28: excitation machine 30: excitation drive 32: Flange part 34: Support part 36: Spring 50:
Installation corner 52: Wall 60: Unmanned automatic equipment 70: Ceiling 80: Wall 100:
Installation corner 102: Wall 110: Automatic unmanned equipment 120: Alarm
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