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JPS5741387

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DESCRIPTION JPS5741387
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of
the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view. FIG. 4 is a side view
showing an example in which a partition plate is provided in the above embodiment. FIG. 5 is a
cross-sectional view showing a state in which the speaker unit is held by the holder. FIG. 6 is a
perspective view showing another embodiment of the present invention, and FIG. 7 is a sectional
view thereof. ???????????????????????? '25 ииииии Support, 6 ииииии First
holding body, 7 ииииии Second holding body.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an acoustic device
for insertion that allows good stereo reproduction. Conventionally, a 4-channel headphone is
known as a sound 14 device used exclusively for personal use and capable of stereo
reproduction. The headphones of this type have first and second speaker units for the left
channel and first and second speaker for the right channel, which are attached to both ends of
the headband when worn on the head through the headband. (1) U-step / Peicanite is configured
to be located at each auricle or a temporal region in the vicinity thereof. Therefore, the first and
second speaker units for the left and right channels are disposed close to each other, which
makes it difficult to reproduce a desired three-dimensional sound field. Further, in the abovementioned headphones, since both speakers are closed by each speaker unit, it is not possible to
listen to external sounds such as signal sounds and dangerous sounds other than musical tones
radiated from these speaker units. Therefore, it is extremely dangerous to drive a vehicle such as
a bicycle or a car while using headphones. Therefore, the present invention has been proposed in
view of the above-mentioned problems, and has been proposed for the purpose of providing an
acoustic device capable of reproducing a desired three-dimensional sound field. . In addition, the
present invention aims to provide an acoustic device using a so-called bone conduction
mechanism that senses imaging motion emitted from each speaker unit to the sternum and
scapula to reproduce a desired three-dimensional sound field. Do. (2) Furthermore, the present
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invention aims to provide an acoustic device that can be worn on the body without blocking the
two ears, which are the main body of aural sensation. Hereinafter, the present invention will be
described with reference to specific embodiments shown in the drawings. In the present
invention, as shown in FIG. 1, the first and second speaker units 1, 2 and the right for left
channels / channels and the right are arranged so as to be able to reproduce, for example, a
three-channel sound field of multiple channels. The first and second speaker units 3 and 4 for the
channel, and the support 5 configured to be fastened to the body for supporting the speaker
units 1, 2, 3 and 4) ing. The support 5 stores and holds the first holding body 6 that holds and
holds the first and second speaker units 1 and 2 for the left channel, and the first and second
speaker units 3 and 4 for the right channel. And a second holding body 7. These first and second
holders t4.6.7 are formed as quadruple elongated bodies so that they can be intimately
connected from the bridge to the upper back and back when worn on the body ing.
The respective end portions of the third (1) and second holding members 6 and 7 are
respectively connected by stretchable connecting belts 8 and 9, and the back surfaces of the first
and second holding members 6 and 7 The end portions on the side are also connected by an
expandable connecting belt 10. Furthermore, a belt 12.13 provided with a receiver 11a and a
fitting 11b of the fastener 11 that make a pair at the front end of each of the first and second
holding members 6, 7 in the forward direction 111L or at each end Is attached. If the support 5
thus constructed is mounted such that the first and second holding members 6.7 extend over
both shoulders, and the bell 12.13 is fastened with a fastening tool ,%% 'On the body can be worn
in contact. And, the first speaker unit 7) 1 for the left channel! The speaker unit 2 for i = i2 and
the first D speaker unit 3 for the right channel and the second speaker unit 4 are as shown in
FIG. 2L and FIG. The first and second holding members 6 and 7 constituting the support 5 so as
to be located in the front and side rain spaces P and Q with the virtual flat passing through the
caps b and c as boundaries ░ (4) supported respectively. That is, the first and second speaker
units 1, 2 for the left channel and the first and second speaker units 3.4 for the stone channel
have their sound emission direction directed upwards-their earshells. It is installed through the
above-mentioned main body 5 so as to be positioned on the chest 1 ftll and the back side with
the F earlid e at the center and almost directly under e. When the first speaker unit 1 and the
second speaker unit 2 for the left channel / channel and the first speaker unit 3 and the second
speaker unit 4 for the right channel (1 and the support 5 are attached) The left and right
channels ? first and second speakers are installed with an appropriate distance W such that the
auricle e is positioned at the boundary where major sound waves emitted from each other cross
each other. The units 1.2, 3 and 4 are prevented from interfering with each other's sound waves
so that the front and back of the sound field can be clearly identified. In addition, to make the
front and back sense of the sound field clear; d1 both shoulders. The C reflection plane h passing
through C [the partition plate 14 needles may be provided at the corresponding positions as
shown in FIG. 4 from the first and second holding members 6 and 7. (5) By the way, each of the
speaker units 1, 2, 3 and 4 is, for example, urethane or the like contained in the first and second
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holding members 6 and 7 constituting the support 5 as shown in the fifth country. It is
positioned and locked in the formed resilient pad 15 and held in the above-mentioned holding
members 6 and 7 in the relationship as described above.
In addition, a connector 16 is connected to the end of the support 5 to connect an external device
such as a tape recorder serving as a sound source for the speaker units 1, 2, 2 ░ 4 and the
speaker units 1, 2, 3 and 4. The provided connection cords 17 are wired. 1, the present invention
is a ring-shaped flexible support 25 having an insertion hole 21 through which the head is
inserted as shown in FIG. 6 left and right channel first and second speaker units 1 , 2 and 3, 4
may be supported. The supporting body 25 is configured such that attachment bodies 26a and
26b are provided at each end 25a and 25b of the connecting portion, and attachment and
detachment of the engagement bodies 26a and 26b can be performed to the body a. At the same
time, the long holes 28. 29, 30, 31 to which the respective speaker units 1 (6), 2, 3.4 are
attached are provided in a ring shape. Then, as shown in FIG. 7, a support shaft 32 provided with
a screw thread at the tip end of each of the long holes 28, 29, and 30.31 and provided on the
base end face of each of the speaker units 1, 2 and 3. A fixing member such as a nut 33 is
screwed into the support shaft 32 so as to be fixed to one of the speaker units t, 2 and 3.1, and
the supporting body 25. In this configuration, the speaker units 1 and 2. 3 can loosen the nut 33
and move along the long holes 28 and 29.30.31. That is, in the range of the length L1 of each of
the speaker units 1 + 2, 3, 4 &: i and the long holes 28.2.1 and 31. 30, the mutual attachment
can be selected on the ring-shaped support 25. With this configuration, the speaker units 1.2 and
3.4 have left and right shoulders depending on the physical shape of each person who mounts
the support 25, and the virtual plane direction through c. In the rain spaces P and Q on the front
side and the back side bordering on the side of the rim, the relationship with the auricle e can be
made constant and supported. (7) According to the present invention configured as described
above, it will be possible to reproduce the sense of the front and back of the sound field
reproduced by each speaker unit extremely clearly VC. In particular, each speaker unit is
mounted in contact with the body Since it is possible to use so-called bone conduction which
senses through the sternum and scapula the imaging motion emitted from the back of the above
speaker unit, it is possible to perceive the front and back of the sound field not only by hearing
but also by bodily sensation. Therefore, very good three-dimensional sound reproduction can be
achieved. If one of the acoustic signals input to the first and second speaker units of the left and
right channels is delayed, good three-dimensional sound reproduction can be performed.
In this case, even if a 2-channel signal is input to the left and right channel O speaker units,
reproduction of a three-dimensional sound will be sufficient. In addition, since the present
invention can be worn on the body without bearing both ears, which are the main body of
hearing, it does not interfere with the listening of the external tube such as a signal sound, so it
can be used safely. (8) By the way, according to the present invention, each speaker unit is
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operated by an acoustic signal supplied from a tape recorder or the like attached to a part of the
body, or a speaker unit is provided with a receiving mechanism to An acoustic signal may be
wirelessly transmitted and activated from a tape recorder, a record player, or the like installed
outside by using.
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