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1 name of the invention 4 ton 4 l 3 security gate lie 14 application side book 4 □. 3, 88 ° 1
[phase] Japanese Patent Office Open Patent Publication 0) Japanese Patent Application LaidOpen No. 49-361-5. (1974, 'f9.1'; '' Patent Application d'7-; 1 ftN) j ■ Application date f7. (197))
or-審査 No request for examination (all five pages) Office! 1′? -Serial No. 0 [1 Class 1 'f /
4123 Group □ / σ, 9 Name 92 Description 1 Title of the Invention Tremolo Device 1 Title of the
Invention Tremolo Device
2 Inventor
The invention of & detailed description of the invention is that the sound generating unit is
interlocked in multiple dimensions to obtain an acoustically deep tremolo effect. As a
conventional tremolo apparatus, for example, as shown in Japanese Utility Model Publication No.
40-22456 or in U.S. Pat. No. 4,204,722, the front of the speaker is equipped with a rotary rod to
impart a tremolo effect. There is something to do. That is, as shown in FIG. 1 of company 11 c) 4,
the center of the acoustic reflection plate 3 is pivotally supported on the tip of the four rotation
shaft 2 connected to the motor IK so that it can rotate in any plane including this shaft. And, the
bearing 4 slidably fitted on the shaft 2 and the side of the reflecting plate 30 are joined by the
connecting rod S, and the reflecting plate 3 is made to face the front of the speaker 6, and this
reflection is made. The plate is rotated while tilting to obtain a tremolo effect. In the latter U.S.
Patent, as shown in FIGS. 2 and 5, the front face of a plurality of speakers 6.6 is equipped with a
perforated disc 7A and a rotary plate 7B having a cut-out portion. There is a device that provides
a tremolo effect to the sound wave from the speaker 6.6 by rotating at a desired speed via a
sievert. However, these devices have the disadvantage that the sound source, Subi, and the force
itself are stationary, so that it is not possible to obtain a tremolo effect that is sufficiently
satisfactory only with planar sound changes. Also, as shown in U.S. Pat. No. 410 to 024 and U.S.
Pat. No. $ 5,884,585 separately from these, the speaker itself EndPage: 1 is rotated flatly to
achieve tremolo effect or the like. There is one that is K to get the vibrato effect. That is, in the
foreword, as shown in FIG. 4 and FIG. 5, the cylinder 8 containing the speaker 6.6 as shown in
FIG. 5 is rotated by the motor 1 through the belt and the rotation shaft. In addition, the abovementioned speakers are supplied at a low frequency via at hurray ring R · 8 through K, which
rotates the speakers in a horizontal direction in the same plane. Thus, although a vibrato effect is
obtained **, it is not always sufficient to be sufficiently swayed by the change in sound. In the
latter U.S. Patent, as shown in FIG. 6, the speaker mounting disc 9 is rotated by the motor 1 m in
the circumferential direction, together with the speaker 6.6 by the other IC of the other IB.
Furthermore, the tremolo effect is applied during the vibrato effect due to the doppler effect by
rotating it in a direction perpendicular to the vertical diameter direction of the other direction
toothpick discs, but the speaker rotation by only the horizontal 爾 circle is rounding, upper and
lower Since no sound spread in the "direction" can be obtained, applying a deep tremolo effect is
an obvious expression.
As described above, in each of the prior arts, it is impossible to obtain various effects that are
acoustically exciting, and it has not always been satisfactory as a result of the following: j. In the
invention of jin, it is developed in an attempt to obtain a tremolo effect with acoustic depth O by
moving the sounding body such as sbi · force in all directions in multiple directions using a 2 @
motor. It is done. Next, in the embodiment shown in FIGS. 7 to 10! It will be described in detail. In
FIG. 7, 1 ° is a base, and a motor M is circumferentially provided on the upper surface thereof,
and has two 1d t-axis, which are perpendicular to the direction of the first rotation axis, and have
two axes. The motor M is installed horizontally and fixed to the tip of its axes am and mb in a
state where the sound wave emitting surface is also perpendicular to these axes with its center of
gravity being balanced It is done. The rotational axes m, ma and mb of the respective motors are
respectively rotated in the directions shown in FIG. 7 and FIG. 8 and their speeds are set to, for
example, 6 as to 20 revolutions per second. Further, as shown in FIG. 10, the current supply to
each speaker SP-i + SPR and the motor M is performed through the slip ring 11 and 11B and the
electrically conductive brush strip and 12B. Therefore, each speaker sp, sp, rotates and emits
while pointing in any direction in multiple dimensions, so when this sound emission sound wave
is beaten at a fixed point, the sound wave to which the vibrato effect is applied during the
tremolo effect is It is possible to listen to the sound and to obtain a remarkable sound spread as
compared with those of the respective conventional examples, and to obtain a tremolo effect
having a more natural feeling. It should be noted that the motion locus of each of the speakers sp
and sp is the same for b as the first rotation axis ff11 and the second rotation axes ina and mb
(motors M and Mm) with an appropriate rotation ratio of integer ratio. As a result of not doing
random movement, it is more effective if the rotation speed of each rotation axis town, ma (mb) is
not an integer ratio, and the rotation speed of these motors is remote-controlled from the outside
In this way, it is convenient to use. Furthermore, as shown in FIG. 11, the present invention can
be achieved by symmetrically arranging four slots, beakers SP, .about.SP, each having two sound
emitting faces orthogonal to the rotational axes tna, mb of the motor rod as shown in FIG. A
deeper tremolo effect is obtained, and it is also advantageous in terms of one-weight balance.
Furthermore, according to the invention embodiment as shown in FIG. 7 and FIG. 11, if it is
housed in a cabinet 14 having sound passing portions U, U on five surfaces as shown in FIG. It
can be used.
As described above, according to the present invention, according to the present invention, the
second rotation axis is provided in the direction substantially perpendicular to the first rotation
axis, and the second same rotating wheel is orthogonal to this axis. By fixing the sounding body
having a sound wave emitting surface and rotating the first axis and the second rotation axis), the
sounding body is moved in the S-dimensional manner in the direction of EndPage: 2 Y L Since the
tremolo effect is obtained, the tremolo effect and the vibrato effect can be obtained by rotating
the sound reflector in front of the speaker as in each of the conventional examples, or rotating
the speaker itself in only one plane in one direction. The ratio L2 of the book obtained is K so
that a wide natural sound with a depth of p is obtained, so the present invention is particularly
suitable for use as a tremolo device such as an electronic (electric) musical instrument.
4. Brief description of the drawings. A block diagram for receiving an example of a chewing moro
(vibrato) device, I @ 7 Fig. 8 and Fig. 9 are block diagrams showing an embodiment of the
present invention respectively, and Fig. 10 is acceptable in Fig. 7 FIG. 11 is a structural view
showing a modification of the present invention, and FIG. 12 is a perspective view showing an
example of a cabinet 01 suitable for use in the device of the present invention. Oh. About the
figure, M, M,-% -ta, mIl, toa, 1! 1b-66 毫-evening rotation axis, s, sp 凰 ~ sp, ... speaker, 10 ... base,
i! Mu, 11B ... Srigling, IJA, Shi ... ... brush pieces, 14 ... suitable sound cabinet. Patent assignee
Nippon Instruments Manufacturing Stock Gold Co., Ltd. Agent 六 m IEm = 旦 −-End EndPage: 36,
Agent other than the above (Procedure to Amend (Procedure No. ? 885 No. 2 name of the
invention 2 name of the invention name of the tremomo 4 device 3 person who makes
corrections Patent applicant address □ Shizuoka Prefecture B 俯 6 r, ly, O number 1 4 agent zip
code January 10
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description, jps493615
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