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JP2003224895

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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
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DESCRIPTION JP2003224895
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
audio recording and reproducing apparatus and a microphone apparatus to which the
microphone apparatus can be attached, and more particularly to a mounting structure for
preventing the rotation of the microphone apparatus.
[0002]
2. Description of the Related Art With the rapid progress of semiconductor storage devices,
portable voice recording and reproducing apparatuses have been put to practical use that record
voices on semiconductor storage devices, reproduce the recorded voices, and view them through
earphones and the like. In this voice recording and reproducing apparatus, it is usual that a
microphone is built in, and the voice of the operator itself is recorded instead of a voice and a
note at a meeting etc. by this built-in microphone. However, since the built-in microphone does
not have directivity, undesired sounds generated around the built-in microphone, such as
operation sound of the recording button, are also recorded.
[0003]
Therefore, in order to be able to selectively record desired voice, Japanese Patent Application
Laid-Open No. 2000-115875 discloses a microphone having directivity, a plug for electrically
connecting this microphone to a voice recording and reproducing apparatus, and a microphone
orientation. There has been proposed a microphone provided with a support member for
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supporting the direction of the conductivity (hereinafter referred to as the direction of the
microphone) and the central axis of the plug so as to intersect at an angle of 90 degrees or less.
[0004]
However, since this microphone is mechanically fixed to the audio recording / reproducing
device by inserting the plug into the jack of the audio recording / reproducing device, the
microphone is rotated around the central axis in the plug insertion direction and the sound
source From the direction of the microphone may deviate.
The deviation of the directivity in the microphone having directivity is not preferable because it
largely affects the recording situation.
[0005]
SUMMARY OF THE INVENTION When the microphone is detachably fixed to the audio recording
and reproducing apparatus by the jack, the direction of the directivity is shifted from the sound
source due to the rotation of the microphone, and a good recording can not be performed.
[0006]
Therefore, an object of the present invention is to provide an audio recording and reproducing
apparatus, a microphone apparatus, and a fixing apparatus for the microphone apparatus in
which the direction of the directivity of the detachably mounted microphone apparatus does not
deviate with respect to the audio recording and reproducing apparatus. .
[0007]
SUMMARY OF THE INVENTION In order to achieve the above object, a voice recording apparatus
according to the invention of claim 1 comprises a recording medium for recording voice and a
voice having a mounting portion for detachably mounting a microphone device. The recording
apparatus is characterized by including a rotation preventing unit that prevents the rotation of
the microphone device in the mounting unit.
[0008]
A voice recording apparatus according to a second aspect of the present invention is a voice
recording apparatus including a recording medium for recording voice and a jack electrically
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connected to a plug of the microphone device, wherein the microphone is centered on the central
axis of the plug. It is characterized by having a rotation prevention part which prevents rotation
of a device.
[0009]
The voice recording device of the invention according to claim 3 is characterized in that, in claim
1, the rotation preventing portion includes a concave portion engaged with a projecting portion
provided on the external microphone device.
[0010]
The voice recording device of the invention according to claim 4 is characterized in that, in claim
1, the rotation preventing portion includes a projecting portion engaged with a recessed portion
provided in the external microphone device.
[0011]
According to the fifth aspect of the present invention, there is provided a microphone device
according to the fifth aspect of the present invention, the microphone device being detachably
mounted on a voice recording device having a recording medium for recording voice, via the
loading portion of the voice recording device. The microphone device is characterized by
including a rotation preventing portion for preventing the rotation of the microphone device.
[0012]
The microphone device of the invention according to a sixth aspect is characterized in that in the
fifth aspect, the rotation preventing portion includes a concave portion engaged with a
protrusion provided on the audio recording device.
[0013]
The microphone device of the invention according to a seventh aspect is characterized in that in
the fifth aspect, the rotation preventing portion includes a projecting portion engaged with a
concave portion provided in the audio recording device.
[0014]
According to the eighth aspect of the present invention, there is provided a fixing device of a
microphone device according to the eighth aspect of the present invention, wherein the
recording medium for recording audio and the mounting portion for detachably mounting the
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microphone device are provided. The microphone device is fixed so as to prevent the
[0015]
According to a ninth aspect of the present invention, there is provided a fixing device of a
microphone device according to a ninth aspect of the present invention, in a voice recording
device including a recording medium for recording voice and a jack electrically connected to a
plug of the microphone device A microphone device fixing device for preventing the rotation of
the microphone device, the microphone device fixing device having a locking portion for locking
the support provided with the plug at one end and a bottom portion for contacting the audio
recording device It is characterized by
[0016]
The fixing device for a microphone device of the invention according to claim 10 is characterized
in that, in claim 9, the bottom portion is covered with a vibration absorbing member.
It is characterized by
[0017]
With such a configuration, it is possible to provide an audio recording and reproducing device, a
microphone device, and a fixing device for the microphone device, in which the direction of the
directivity of the detachably mounted microphone device does not deviate with respect to the
audio recording and reproducing device.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be
described below with reference to the drawings.
FIG. 1 is a perspective view showing a portable voice recording and reproducing apparatus
(hereinafter referred to as a recorder) according to an embodiment of the present invention in
which a microphone device is mounted.
03-05-2019
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[0019]
The recorder 1 has a semiconductor memory for recording voice and a recording button 2, an
index button 3 for editing a recorded voice, a menu button 4 for selecting a function, a volume
button 6 for increasing or decreasing the volume from the speaker 5 at the time of reproduction
Each operation button of the deletion button 7 which erase | eliminates unnecessary recording
audio | voice, and the hold button 8 which prevents unnecessary button operation at the time of
carrying is provided.
9 is a cover of the battery case.
On the surface opposite to the surface to which the cover 9 of the battery case is attached, there
are provided respective operation buttons of a display device for displaying an operation menu, a
stop button, a play button, and a pause button.
Furthermore, the recorder 1 is provided with an earphone jack 10 for connecting an earphone.
[0020]
In the microphone device 20, a microphone unit (not shown) for converting sound into an
electric signal is incorporated in and fixed to the microphone attachment portion 21.
One end of a superdirective pipe 22 providing superdirectivity is attached to the microphone
attachment portion 21.
The superdirective pipe 22 is formed of a bottomed cylinder made of ABS resin, and a plurality of
circular first openings 22b through which sound in the direction of directivity of the microphone
unit is transmitted to the bottom 22a thereof, A large number of slit-shaped second openings 22d
are formed in the circumferential surface 22c so as to cancel each other for sounds coming from
directions other than the directivity direction of the microphone unit.
03-05-2019
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[0021]
The microphone attachment portion 21 is attached to one end of an L-shaped support 24 via a
hinge 23 so as to be rotatable around a rotation shaft 25.
At the other end of the support 24, a plug for electrically connecting to the recorder 1 is
attached.
That is, since the long superdirective pipe 22 can rotate around the rotation axis 25 orthogonal
to the center axis of the plug (in other words, the insertion direction of the recorder 1 to the
connection jack) In use, the direction of directivity of the microphone device 20 can be correctly
directed to the sound source, and when not in use, the hinge 23 can be folded around.
[0022]
Next, a mechanism for preventing the microphone device 20 from rotating about the plug will be
described with reference to FIG.
FIG. 2 is a perspective view showing the microphone device 20 of FIG. 1 removed from the
recorder 1.
The same components as in FIG. 1 are denoted by the same reference numerals.
[0023]
A cylindrical protrusion 27 is provided in the vicinity of the plug 26 at one end of the support 24
of the microphone device 20.
When the microphone device 20 is attached to the recorder 1, the protrusion 27 is engaged with
the recess 12 provided in the vicinity of the microphone connection jack 11 of the recorder 1,
and the microphone is centered on the central axis of the plug 26. The device 20 can be
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prevented from rotating.
[0024]
Therefore, when the recorder 1 is placed on a desk and recorded while the microphone device 20
is attached, the directivity of the microphone device 20 can be prevented from deviating from the
sound source, and good recording can be performed.
[0025]
As the rotation preventing mechanism constituted by the projecting portion 27 of the
microphone device 20 and the concave portion 12 of the recorder 1, as shown in FIG.
That is, the pin 13 is provided in the vicinity of the microphone connection jack 11 of the
recorder 1, and the notch portion 28 fitted with the pin 13 is provided in the vicinity of the plug
26 at one end of the support 24 of the microphone device 20.
[0026]
In addition, the above-mentioned protrusion part 27, the recessed part 12, the pin 13, and the
notch part 28 are not restricted to a cross section circular shape, and a change of a cross section
square etc. is possible.
[0027]
Next, another embodiment of the present invention will be described using FIGS. 4 to 7.
In the above embodiment, the recorder and the microphone device are provided with the
mechanism for preventing the rotation of the microphone device. However, the microphone
device may be fixed to the recorder by a fixed body. FIG. 4 is a perspective view for explaining
the attachment of the fixed body 31 to the microphone device 20. As shown in FIG. The fixed
body 31 is processed from a metal plate of an elastic material such as stainless steel. The fixed
body 31 includes a holding portion 31 a which elastically holds the support 24 of the
microphone device 1 and a bottom portion 31 b which abuts on a surface of the recorder 1 on
which the speaker is provided. In the fixed body 31, the holding portion 31a fixes the support 24
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of the microphone device 20 by a frictional force.
[0028]
As shown in FIG. 5, the fixed body includes claws 32a fitted in a pair of recesses 29 provided in
the support 24 of the microphone device 20 and a bottom 32b in contact with the surface on
which the speaker of the recorder 1 is provided. It is good also as fixed body 32 made of plastic.
[0029]
Furthermore, as the fixed body, as shown in FIG. 6, the bottom portion that contacts the surface
on which the claw portion 33a fitted in the pair of concave portions 29 provided in the support
24 of the microphone device 20 and the speaker of the recorder 1 are provided. It is good also as
fixed object 33 which consists of 33b and made of piano wire.
[0030]
Further, as shown in FIG. 7A, a sandwiching portion 34a fitted in a pair of groove portions 30
provided in the support 24 of the microphone device 20 and a bottom portion 34b abutting on
the surface provided with the speaker of the recorder 1 It is good also as a fixed body 34 made
of piano wire.
In this case, the position of the fixed body 34 can be adjusted in accordance with the mounting
height of the jack 11 of the recorder 1 as shown in FIG. 7 (b).
[0031]
Although the embodiment described above describes the case where the microphone device is
connected to the recorder and recording is performed with the recorder placed on a desk, a fixed
body suitable for the case where the user holds the recorder in hand and performs recording.
Will be explained.
[0032]
FIG. 8 is a perspective view showing the fixed body 35. As shown in FIG.
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8
As shown in FIG. 8, the fixed body 35 is made of a piano wire and is held on the surface provided
with the holding portion 35 a fitted in the pair of groove portions 30 provided in the support 24
of the microphone device 20 and the speaker of the recorder 1. It consists of the bottom part
35b which touches.
[0033]
FIG. 9 is a perspective view for explaining the state of use of the fixed body 35. As shown in FIG.
As shown in FIG. 9, after the fixed body 35 is attached to the groove 30 of the microphone device
20, the microphone device 20 is attached to the recorder 1. Thereafter, the user holds the bottom
35 b of the fixed body 35 with his finger 36 and holds it by hand to perform recording.
[0034]
As the fixed body 35, as shown in FIG. 10, the bottom 35b in contact with the microphone device
20 may be provided with a covering 35c of urethane rubber. In this case, since the covering
portion 35c is made of urethane rubber, it is effective in preventing slippage and vibration.
[0035]
Although the above embodiment has described the case where the present invention is applied to
an audio recording and reproducing apparatus for recording audio in a semiconductor memory,
the audio recording and reproducing apparatus using a recording tape or a medium for recording
and recording audio is reproduced by the reproducing apparatus. It is applicable also to a
recording device.
[0036]
According to the invention described in detail above, a voice recording and reproducing
apparatus, a microphone apparatus and a fixing apparatus for the microphone apparatus are
provided in which the direction of the directivity of the attached external microphone apparatus
does not deviate with respect to the voice recording and reproducing apparatus. It is possible.
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