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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a conventional horn
speaker, FIG. 2 is a directivity pattern diagram of the same horn speaker, FIG. 3 is a perspective
view of another conventional horn speaker, FIG. And b are respectively the horizontal directivity
pattern and vertical directivity pattern of the horn speaker in FIG. 5, FIG. 5 is a perspective view
of the horn speaker according to one embodiment of the present invention, and FIGS. . A and b
are horizontal directivity pattern 7 and vertical directivity pattern diagrams in the same figure,
and FIGS. 8a and 8 b are a top view and a sectional view of another embodiment, respectively. It
is. 1 и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и
и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и.
[Detailed Description of the Invention] 7. The present invention is also directed at 0 to 6
regarding ho ? ? ? ? 7: 0, 2 ? ?, which is intended to improve custom-made, иии, S2 FIG. 1 (d
+ f following horn Loudspeaker, 1 is Ho 7.2. ??????????????? 3 shows a sound
axis. In the groove 1, the horn 1 is a round-shaped satellite-shaped crush, and the directivity
patterns of the respective seasons passing through the sound axis 3 are all the same. Fig. 2
shows an example of the effect of the horn speaker of the same horn speaker. As shown in the
following, in the low range, the directivity is broad, but it is sharp in the high # range, so the
sound! The sound quality changes to seven (side direction) as the li [l 13] changes, and a customdesigned 'i 4 ? or an acoustic engineer concentrates on the front, so the sound pressure
resistance is high in the front, making it feel loud Conversely, in the side direction, the number of
sounds is insufficient. Therefore, it is a narrow range (near the sound axis 3) which is ?-turned
as the serch-seri r of the horn speaker in FIG. FIG. 3 is another conventional horn speaker, which
was conceived to eliminate the disadvantages of the horn speaker of FIG. Parts corresponding to
the horn speakers in FIG. 1 are denoted by the same reference numerals. '-Here, the horn 1 has a
square tooth surface structure (near the opening) 3 and, by making the opening size ratio of
vertical ? and horizontal H, inter-finger space in each plane passing through the sound axis 3 In
order to change the custom order, Fig. 4: South direction 1 'I of this horn speaker: pattern pattern
row, and in the direction, d South discharge horizontal patano, 5 Fig. 1 vertical As shown in the
pattern and as can be seen from this figure, the horizontally-oriented music butter 7 is wider
than the dangling finger-sitting butterano, and has become a more service area than the
conventional row of FIG. However, because this service area is also narrow, and the sound quality
change is large on the side, and the vertical directivity pattern is narrow, it is necessary to direct
the sound 413 to the desired service area, and the main body is installed around 1 when
installing. There are 2 losses that need to be done, depending on the location. The present
invention eliminates the aspiration as described above, and provides a horn speaker having a
wide service area and a directed custom made with less noise and inferiority. FIG. 6 is a
perspective view showing an embodiment of the present invention, and a sixth diagram is an
example of a top view and a sectional view thereof. As in the prior art, the openings have
different vertical V and horizontal H ratios, and change the directional pattern of each stone. This
horn speaker differs from that shown in FIG. 3 in that the ratio of vertical V and horizontal H of
the cross section 6 on the throat side 4 near the horn opening is H / V) 1 and the skirt of the
horn 4 11] 1) The inclination of facing 1a of the vertical of the horn from 5 to the opening
portion is formed symmetrically with respect to the sound axis C;
It is a point that loses 7 side by side 1b of yellow five asymmetrically, and makes each side a flat
slope, that is, 0 (mean of each average sound path) or a mountain, and the shaft 3 'of fc sound
axis 3 d main body The directions are different. FIG. 7 shows the same in FIG. 7-fresh butter /
one row, a figure shows a horizontal pattern and b figure shows a vertical pattern. As can be seen
from this @ bundle, the directivity pattern (horizontal) of the axisymmetric surface by making the
horn structure @ is wider in the wide service area from the low range to the high range
compared to the conventional one. Unlike the conventional horn speaker, the directivity pattern
in the high frequency region is a square pattern. Therefore, it is possible to use a wide service
area with low sound quality ? \ with less inferior sound quality. и Directional parts with
asymmetry and directional characteristics '-o' \ 2, l-: "1; The mean sound path direction 6 of the
horn and the center A-like sound axis 3 are in the same direction. Therefore, in the service area
? to the lower side of-=, the axis 3 'of the main body is rotated in the direction of 7 to reduce the
heart rate. In addition, this horn is capable of changing horizontal and boarding direction 1 live
balances by means of b to D: 1 diagonal. For example, in a meeting considered as a home
thousand, a butter 7 conforming to the home shape of Hamecho Hajime 1 Bamaenha 7 is well
placed at the upper side, so in the conventional horn speaker, the horn is beaten with the
conventional horn speaker It is necessary to install a five-in-one row with a directional pattern
matching the shape of the home at the horn facing 1a, and a counter-pass at the normal
mounting with the counter 1b, with the average sound path direction 6 below the service area
and To be good). The eighth problem is the upswing and l # I range 1 indicating the pond weir, L
and I, and the driver unit is in charge of entering the inside of the main unit. Also, although the
above description has been made with the flex horn, the straight horn has an Ojf '5A of 8213,
and the shape of the horn around 4 of the four days is mainly J -'- L + white Since the 6 ? ?oriented characteristic is supported, the horn shape of the throat reconnaissance 11 may be
different from that of the above-mentioned part in the shape different from the d ? s journey
example. In addition, although it has been described that the horn surrounding 4 of the opening
portion is flat, it is the same as the finger collecting and the numerical slope. Moreover, although
the above investigation has been described in one direction, it may be considered as a direction
by attacking the pre-asymmetrical tail horn speaker. As is apparent from the above embodiment,
the inclination of the horn surface near the opening of the horn according to the present
invention can be obtained (it is possible to obtain a horn speaker having directional
characteristics corresponding to the purpose of use, In the service area, it is possible to provide a
horn speaker which is low in sound quality and advantageous in installation and tessin.
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