JPH05111089

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DESCRIPTION JPH05111089
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to box
loudspeakers, and is particularly suitable for application to automotive box loudspeakers.
[0002]
2. Description of the Related Art Conventionally, in a car-mounted box speaker, for example, by
arranging it on the rear panel, the space between the rear window and the rear seat can be
arranged effectively. Furthermore, in this type of box speaker, the speaker for reproducing each
range while being arranged on the rear panel in this manner is held in a state of being inclined
forward by about 60 degrees.
[0003]
As a result, in the box speaker, it is possible to ensure sufficient directivity for practical use
simply by arranging on the rear panel, effectively avoiding the sound quality deterioration due to
the directivity of the speaker even in a limited space in a car It is made to be possible.
[0004]
However, when the speaker is inclined and housed in the cabinet as described above, the height
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of the cabinet is increased as the diameter of the speaker is increased.
Therefore, when trying to improve the bass by increasing the aperture of the speaker, there was
a problem that when installed in that part of the car, it would interfere with the rear view.
[0005]
The present invention has been made in consideration of the above points, and an object of the
present invention is to propose a box speaker capable of improving the bass by enlarging the
aperture of the speaker without disturbing the rear view.
[0006]
[Means for Solving the Problems] In order to solve such problems, in the present invention, large
diameter speakers 8R, 8L for bass reproduction, and small diameters with a smaller diameter
than large diameter speakers 8R, 8L for high-tone reproduction. In the car box speakers 2R and
2L in which the speakers 4R, 4L, 6R and 6L are housed in the cabinets 10R and 10L, the radial
direction of the large diameter speakers 8R and 8L is almost parallel to the installation surface of
the cabinets 10R and 10L. The large diameter speakers 8R and 8L are arranged in the cabinets
10R and 10L so as to become.
[0007]
[Operation] If the large diameter speakers 8R and 8L are arranged on the cabinets 10R and 10L
so that the radial direction of the large diameter speakers 8R and 8L is almost parallel to the
installation surface of the cabinets 10R and 10L, they are inclined. The projection area to the
rear can be reduced as compared with the case of arranging, and the rear view can be secured to
that extent, and large diameter speakers 8R and 8L with large diameters can be used.
[0008]
An embodiment of the present invention will be described in detail with reference to the
drawings.
[0009]
In FIG. 1, reference numeral 1 generally indicates an on-vehicle box speaker, and right and left
channel box speakers 2R and 2L constitute an integral speaker system.
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[0010]
That is, the left and right channel block speakers 2R and 2L are provided for the speaker
cabinets 10R and 10L, respectively. And 8L, and as shown in FIG. 2, they are arranged on the left
and right sides of the rear tray of the car.
[0011]
At this time, in the right and left channel block speakers 2R and 2L, the high-tone reproduction
speakers 4R and 4L, the mid-tone reproduction speakers 6R and 6L, and the low-tone
reproduction speakers 8R and 8L are sequentially arranged inward from the left and right ends.
It is done.
Further, the high-tone playback speakers 4R and 4L and the mid-tone playback speakers 6R and
6L are disposed on the front side of the speaker cabinets 10R and 10L so as to be inclined at an
angle of about 60 degrees with respect to the rear tray. It is done.
[0012]
Thereby, in the right and left channel block speakers 2R and 2L, they are simply disposed on the
rear tray and held so that the opening directions of the speakers 4R to 6L are directed forward,
effectively utilizing the directivity of the speakers 4R to 6L. It is designed to be able to listen to
the high-quality playback sound.
[0013]
Furthermore, by arranging the high directivity high-pitched reproduction speakers 4R and 4L on
the outer side, it is possible to audition a highly realistic stereo reproduction sound.
[0014]
In the speaker cabinets 10R and 10L, when viewed from the front from the high-tone
reproduction speakers 4R and 4L disposed outside to the mid-sound reproduction speakers 6R
and 6L disposed inside thereof, the diameters of the respective speakers 4R to 6L In accordance
with the above, the outer shape is formed so as to gradually rise, thereby ensuring the rear view
and reducing the occupied volume on the rear tray.
[0015]
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On the other hand, in the bass reproduction speakers 8R and 8L, the radial directions of the
speakers 8R and 8L are substantially parallel to the rear tray mounting surfaces of the speaker
cabinets 10R and 10L. ing.
Correspondingly, in the speaker cabinets 10R and 10L, the external shape rising from the outside
is such that the opening portions of the speakers 8R and 8L are below the uppermost ends of the
speaker cabinets 10R and 10L. It is made to fall at the attachment position of the speakers 8R
and 8L.
[0016]
As a result, in the right and left channel block speakers 2R and 2L, when viewed from the front,
the shape of the speaker cabinets 10R and 10L is reduced at the central portion of the rear tray,
thereby effectively avoiding the deterioration of the rear view. It is made to be possible.
In addition, since the directivity is low in the bass, even when the bass reproduction speakers 8R
and 8L are disposed upward, it is possible to effectively avoid the tone deterioration of the bass.
[0017]
In practice, when this type of woofer is arranged at the same angle as the speakers 4R to 6L, the
rear projection area is increased by the amount indicated by the one-dot chain line in FIG.
Thus, by disposing the bass reproduction speakers 8R and 8L upward as described above, it is
possible to effectively avoid a reduction in the rear view even if the diameters of the speakers 8R
and 8L are increased. The sound quality of the bass can be improved by increasing the diameter
of the 8L.
[0018]
In this embodiment, in the speaker cabinets 10R and 10L, the shape is changed smoothly from
the medium sound reproducing speakers 6R and 6L to the bass reproduction speakers 8R and
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8L, whereby the box speaker 2R is formed. And 2L are reduced, and design is improved.
[0019]
According to the above configuration, by disposing the bass reproduction speakers 8R and 8L
upward, it is possible to effectively avoid a decrease in the rear view even if the diameters of the
speakers 8R and 8L are increased. It is possible to improve the bass by enlarging the aperture of
the speaker without disturbing the rear view.
[0020]
In the above embodiment, when viewed from the front, the external shape of the speaker cabinet
is loose from the high-tone reproduction speakers 4R and 4L disposed outside to the mediumsound reproduction speakers 6R and 6L disposed inside thereof. However, the present invention
is not limited to this, and can be widely applied to speaker cabinets of various shapes.
[0021]
In this case, for example, as shown in FIG. 3, even when the upper portion of the speaker cabinet
is formed flat, the rear projection area can be improved as compared with the conventional
arrangement shown by the alternate long and short dash line. Sound quality can be improved by
securing.
[0022]
On the other hand, as shown in FIG. 4, even when the positions of the speakers are interchanged,
the deterioration of the rear view can be effectively avoided.
[0023]
As described above, according to the present invention, by disposing the bass reproduction
speaker upward, it is possible to improve bass by enlarging the aperture of the speaker without
obstructing the rear view. You can get
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