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JPS6297496

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DESCRIPTION JPS6297496
[0001]
The invention relates to the sound h) adjustment device of a vehicle installation with a
loudspeaker. (Background of Technology) Recently, there are increasing cases where vehicles,
particularly vehicle equipments having speakers on motorcycles + 1 L are equipped.
(Conventional technology and its problems) Conventionally, sound equipment adjustment of a
vehicle equipment having a speaker of a motorcycle, for example, radio cassette decking is
performed by a manifold operation. Set the volume of the deck to 1 and set the volume of the
automatic drive, the transport speed of the transport H1, 1 and 1 and the radio power set 1 1
hedeno ? sound h (adjustment (J 1 will not be done. For this reason, is it a radio cassette deck in
motorcycles? 'F hj l: i, white! ?? I +: At the stop 1 of transport tlf, even when the automatic two
sips are traveling, it is set and adjusted to the listening m1. Therefore, when the motorcycle is
running, the sound of the radio cassette tick is a good volume for the boarding board, but it is a
motorcycle! When 1c decelerates or pauses, the volume of the radio power set 1 deck is too loud.
SUMMARY OF THE INVENTION Therefore, the present invention has been made in view of the
above-mentioned circumstances, according to the driving situation of the vehicle, such as
stopping one time when traveling for 11 cars, sound emission of the vehicle equipment having
the speaker It is an object of the present invention to provide a volume control device capable of
producing an optimal sound emission. (Summary of the invention) In order to achieve the abovementioned [1], the present invention substantially adjusts the volume generated from the speaker
in the sound emission adjusting device of the vehicle installation equipment having the speaker
by 1 ░ f1 j! It is comprised by having provided the adjustment means and the operation means
to drive the said sound emission adjustment means 41 according to a wind pressure. An
embodiment of the present invention will now be described in detail with reference to the
drawings. Fig. 1 и и Fig. 4 shows an embodiment of a sound emission adjusting device for a vehicle
installation device having a speaker according to the present invention, which is configured
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mechanically. ? ??? The adjusting device 1 includes a speaker 5 by an operating means 4
constituted by a wind receiving plate 2 displaced by a wind pressure according to the traveling
speed of the vehicle and an arm 3 transmitting the wind pressure received by the wind receiving
plate 2 of? The 1 ░ wind backing plate 2 formed of a shielding r ? ? f plate (sound adjusting
cylinder means) 6 for adjusting the 1 ? ? is rectangular, and one end 2a of the wind backing
plate 2 and one end 3a of the firm The one end 2b of the wind plate 2 is connected at one end 2il
or 1) 1 /: 3 as shown in FIG. In this cutout portion 2c, a [J stud 7 is provided (J).
As shown in FIG. 2, the wind receiving plate 2 can be freely rotated through a rectangular hole
8b drilled at a predetermined position on the outer surface of a cover 8 of a motorcycle etc. 8a. It
is attached. A return spring 9 is inserted into the rod 7, one end 9a of the return spring 9 abuts
on the end face 2 (!) Of the wind receiving plate 2 and the other end 9 bj-abuts on the inner
surface 8G of the cover 8 At one stop time, that is, when there is no wind pressure, an angle ? is
formed with respect to the traveling direction R of the motorcycle. The sound insulation plate 6 is
formed of four rectangular plates 6a, 6b, 50, 6 (formed by I, and the rod 10 as shown in FIG. 3 at
the approximate center of the plates 6a to 6d of the sound insulation plate 6. , And the plates 6a
to 6d of the sound insulation plate 6 are formed on the inner surface 8c of the cover 8 facing the
speaker 5 provided on the motorcycle etc. It is attached rotatably via a fixed interval. Temporary
6a to 6 (one end of the sound insulating plate 6 is sequentially rotated from the other end 3b of
the arm 3 at the same interval as the plates 6a to 6d of the sound insulating plate 6 attached to
the hole 8d of the cover 8 by the rod 10) It is attached freely. Therefore, wind receiving plate 2
tries to rotate counterclockwise around rod 7 against return spring 9 by wind pressure generated
by traveling of the motorcycle, and as shown in FIG. 4, the wind receiving against cover 8 The
angle of the plate 2 is set to be 90 degrees at a predetermined traveling speed I-. That is, since
the poe-two board 2 is 90 degrees above the set traveling speed and moves to the right 1i in the
Al Alft diagram, the boards 6, 1 to 6 of the sound insulation board 6 (1 rotates counterclockwise
about r1 sodo 10) The plate 6 a = 6 d is also 90 degrees to the cover 8. The angle of the wind
plate 2 to the cover 8 is ? when stopping the motorcycle, and is 90 degrees at the set traveling
speed, and changes from ? degrees to 90 degrees according to the respective traveling speeds.
The plates 6a to 6d of the sound insulation plate 6 also change from the set angle ? to 90
degrees. Since the sound insulation plate 6 operates as described in -1-, the sound volume of the
speaker 5 of the vehicle equipment having the speaker is set by a manual operation when the
motorcycle is stopped, that is, at the set angle ? 6 is the most sound-insulated state. As the
motorcycle starts to travel and the traveling speed increases, the sound insulation plate 6
gradually increases in angle toward 90 degrees, so the function of the sound insulation plate
gradually decreases and the 0 ? of the speaker 5 increases. However, the sound from the
speaker is transmitted to the periphery as a nearly constant 0 ? because it is 1-arranged by the
sound generated by the running of the motorcycle t to j?.
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FIG. 5 is a diagram showing the configuration of a system 11 showing another embodiment of
the j1 room adjustment device for vehicle equipment having the speaker according to the present
invention, which is electrically configured and is 1 /). The voice adjusting device 20 is provided
with a pressure sensor 21 + 1 for detecting a wind pressure provided at a predetermined position
receiving wind / l и ии such as a cover of a motorcycle, etc., and a pressure corresponding to the
wind pressure. a pressure sensor unit 21 (operation-F stage) configured of a conversion
transmitter 211) for conversion and transmission to lj pressure) and changes in the output
voltage of the pressure sensor unit 21; Attenuator 2; 3 for attenuating constant output Ff j R 04generated from the deck 22; and a manual volume 27 for manually operating an audio signal
attenuated by the attenuator 23 It is comprised by the adjustment part 26 (sound h (adjustment
means)) which consists of the pre-amplifier 25 for making it a potential. Further, the preamplifier 25 is connected to an amplifier 27 for further enhancing an audio signal which has a
predetermined potential, and the amplifier 27 is connected to a speaker 28 which uses the audio
signal as an audio. By the way, it is known that the traveling speed of the motorcycle is
proportional to the pressure received thereby, and there is a relationship as shown in FIG. 6
between the pressure I) and the voltage V generated by the pressure sensor portion 21. The
voltage V and the attenuation tQ obtained by the attenuator 23 have a relationship as shown in
FIG. Accordingly, the vehicle speed and the attenuation IQ have a relationship as shown in FIG. 8.
When the amount of attenuation Q is large, it is il (when the speed is low, and when the amount
of attenuation Q is small, the medium speed is high. These relationships are scaled 818 linearly.
For this reason, the vehicle speed + '2 +: the attenuation amount is in line and the attenuation
amount is large when the medium speed is slow, so the sound from the speaker 28 (j low 1), il
(the attenuation IdQ when the speed is late) Because it decreases, the it voice from the speaker
28 becomes high. As described above, when the vehicle speed is low, that is, when the other
noise is small, the sound j, 7 from the speaker 28 becomes low, and 11 (when the speed is fast,
that is, the other noise is high, the sound from the speaker 28 Can be raised. Next, the operation
of the voice adjustment device 20 will be described. For example, since the vehicle speed is O
automatically when the axle is stopped, the pressure of the pressure sensor 21a that detects the
pressure is 0. Therefore, the voltage from the conversion transmitter 21b is zero, the attenuation
by the attenuator 23 is the largest state because the voltage is O, and the audio signal output
from the radio force set 1 to the deck 22 is the most attenuated state. Become.
The most attenuated sound signal ("manual volume 24" is adjusted to obtain an optimal sound
volume for the motorcycle's boarding line, and the sound signal adjusted by the pre-amplifier 25
is made into a predetermined potential. Thereafter, the amplifier 27 raises the audio signal to R,
and the loudspeaker 28 outputs a voice which is optimum for the passenger by the manifold
volume 1124. Since the vehicle speed is Vx when the motorcycle is traveling, the pressure of the
pressure sensor unit 21a is Px, and the voltage from the conversion transmission unit 211 is Vx.
22) The speech signal is attenuated by Ox. This Ox-damped audio signal is adjusted by the
manual 8 to the volume 24 when the motorcycle is stopped, so it passes through the manual
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volume 24 as it is and passes to the preamplifier 25 to be a predetermined potential. After that,
the audio signal is further enhanced by the amplifier 27, and the speaker 28 utters an audio
whose volume is equal to the vehicle speed Vx. According to the present invention, as described
in detail above, according to the present invention, in the audio control apparatus for vehicle
equipment having a speaker, volume control means for controlling 0 ? ? generated from the
speaker in an actual l? manner; Since the volume control means is driven according to the wind
pressure and the operation means is provided, the 0 ? adjustment can be performed
automatically according to the traveling speed of the vehicle. There is an advantage such as
improvement of the sound volume that the volume is optimized without manual operation
according to the driving situation of the vehicle such as hour.
[0002]
Brief description of the drawings
[0003]
FIG. 1 is a cross-sectional view showing a state of one stop of a facet, and FIG. 2 is a plan view of
FIG. 1, FIG. Figure 11 is an enlarged view of an essential part J of 11v1, Figure 4 is a crosssectional view showing a state in which the traveling speed of the vehicle in Figure 1 is 1 'or
more, and Figure 5 is an electrical view according to the present invention. An example of a
sound ffJ 8-section device configured in the system, a configuration diagram, FIG. 6 is a
characteristic diagram showing a voltage-pressure relationship, FIG. 7 is a characteristic diagram
showing a damping H (-voltage relationship, FIG. The figure is a characteristic diagram showing
the relationship between damping wedge and vehicle speed.
1.20 и и Volume adjustment means, 2 и Wind support plate; 3 AR 4 и и Operation means, 5 и
Speaker, 6 и Sound insulation board (? f tail adjustment means), 8 и и и Cover, 8 b? One hole, 21
? Pressing part (operating means), 26 ? Adjusting part (volume adjusting means).
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