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JPS4731502

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DESCRIPTION JPS4731502
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a conventional capacitor
type transducer, FIG. 2 is a sectional view showing an example of a pickup cartridge having a
capacitor type transducer according to the present invention, and FIG. 3 is a capacitor according
to the present invention. FIG. 4 is a front view showing another embodiment of the cartridge of
the present invention. E · · · movable electrode. Fig. 3-3-47-1502 (2) Fig. 2 Fig. 4
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a Condesina-type
"Trans9" used, for example, for a record player's viewing cartridge. Conventionally, a condensertype transducer used for a record player such as a stereo, etc., is used as shown in FIG. That is,
the% 2 fixed electrodes 1.1 are attached to the support 1 fixed to the −′′- 47-315022-02biathup cartridge casing so as to form a substantially H shape, and each fixed electrode 1. A
positive polarity voltage is applied to each of the terminals 2 and 4 via the lead wire 4.5. Inside
the fixed electrode 1.2, a substantially V-shaped movable electrode-can be used so as to face each
fixed electrode 1.2. The movable electrode σ is configured to vibrate in response to the vibration
of the record needle vibrating according to the unevenness of the sound groove of the record
board. That is, the record needle is vibrated by the unevenness of the sound groove of the record
board, the movable electrode 6 is moved by the vibration of the record needle, and the layer
between the movable electrode 6 and the fixed electrode 1.2 is changed. A mechanical signal is
taken out as an electrical signal. However, since voltages of different polarities are applied to the
two fixed electrodes 1.2. Where the fixed electrode 1 and the fixed electrode 2 approach each
other, the distribution of the electric force lines r becomes complicated. When the distribution of
such electric lines of force r is complicated where W: vibrates, distortion of the output signal
occurs, and there are black (−5TI−1, -1-N−47 ′ ′-31502 03), and movable electrode C
When the movable electrode 6 vibrates in the direction of one further constant electrode 1, the
opposing area of the movable electrode C and the other fixed electrode 2 is opposed to this
vibration. Changes, and the signal corresponding to the change mixes in the output signal. The
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present invention was made in view of the above points. A capacitor type that can reduce
distortion and crosstalk of the output signal and avoid the effect of the fixed electrode that does
not extract the output signal by avoiding the movable electrode from the part where the
distribution of electric field lines by the fixed electrode is complicated. Intended to obtain a
transducer. The following will explain the embodiment of the wooden structure in detail with
reference to FIG. 4 to FIG. 4. The pickup cartridge of the record player such as stereo is! As
shown in FIG. 181, a cantilever IJ having a record needle 12 at the tip end of a car 9) frame 11 is
led out to the outside of the record needle 12 and supported by a statement stand 15 via a
damper 14 as shown in FIG. .
At the back of the on-teleper II, 011 of the armature lI is attached together, and at the other end
of this armature 1g, a condenser fs transducer l! Is provided. Conden leaf type transformer tne
11 is connected to an amplifier 1 # made of, for example, an integrated circuit or the like
through a lead wire l # for output signal extraction, and an output terminal jlj of this amplifier 1
# is connected through 9-wire 21. It is connected to the external connection terminal z2.
Reference numeral 2J in FIG. 2 denotes a mounting rod for mounting the cartridge housing 11 to
the pickup arm. Thus, as shown in FIG. 11 (b), the two fixed electrodes ZS, Z- are substantially
igniter-shaped at a predetermined angle on the support 24 fixed to the auto-tweezers housing I,
as shown in FIG. , And each identification '4mj J, ffi # is heard the voltage of the pole pole coming
through the t-wires zy and za, respectively. A 137-shaped town llliiE pole 1t is provided inside
the fixed electrodes jJ, 2g so as to face each liI * charge 11szi * zg with an appropriate gap, and
the movable electrode j # is substantially a square of the movable electrode j #. 4-f Tsuno "-j7- 彎
1 equivalent to the top of the kidney o2-95 shaped flat part so that the distribution of the electric
force mi1 by the fixed electrode 21 ° 2 # is far from complicated rollers J0 is provided. This
movable electrode 2 # is grounded. That is, the record needle 12 vibrates due to the unevenness
of the sound groove of the record board, and the vibration of the record needle 12 causes the
movable electrode 2 # to be IIIWk, via the cantilever IJ and the arm armature 1 # via the
cantilever IJ and the electrode j #. The mechanical signal is extracted as an electrical signal by qconverting the distance between the fixed electrodes 2J and 2σ, and the electrical signal is
derived to the external connection terminal 22 through the amplifier l #. Therefore, in the
present invention, the movable electrode 2t is formed in a substantially M shape, and the
distribution corresponding to the substantially M shape of the movable W pole J # is complicated
by the distribution of the electric force 1111rll by the fixed electrode 21 ° zg. By forming the
flat portion 1 # so as to avoid from the far side, it is possible to reduce the dilution of the output
signal and the crosstalk. In addition, a portion corresponding to the substantially U-shaped top
portion of the movable electrode 2 # is a flat portion J # first. Since the width of the movable
electrode z9 is smaller than that of the fixed electrodes is and xi by forming them into + Fn C C,
the pair 1 · □ with the fixed electrode which does not extract the output signal is 7 ′ ′.
Workman. K, M, M. , Work □□ 3. Yes, it is possible to prevent the influence of noise capacity
that occurs.
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Napry, as shown in FIG. □ 8: Even if the approximately V-shaped concave portion J2 is affected
so as to avoid from the complicated position of the distribution of electric field lines due to m 5
□ 86 pieces, 4 o, poles izti, zttt 2, the above example and the same example are substantially the
same The same effect can be obtained. As described above, according to the present invention,
distortion of the output signal and crosstalk can be reduced by avoiding the movable electrode
from the part where the distribution of electric lines of force by the fixed electrode is
complicated, and the output signal is not extracted. Fixed electrode ll! It is possible to obtain a
Condena Carved Transducer that can reduce wrinkles. A brief description of the 4-face. The 'ill'
shows a conventional condun 'E' Fig. 2 and Fig. 2 Condensed according to the present invention) ·
· 6-· · '%', J, +7 -91502-07 Cross section showing an example of a close-up kite tweezers having a
transformer 第, 3rd v! J is a front view of an embodiment of the condensed type cartridge
according to the present invention, and 411 is a front view of another embodiment. 25-round
running electrode, 2σ-fixed electrode, 2r- movable electrode Applicant: Tokyo Shibaura Electric
Co., Ltd. Attorney Attorneys: Suzue Takeshi, · · · · -47-315C12-08'57162 12 WJ2319112 □ 122
/ '7' :--------------------------------------------------------------------117- 1. :, 131416,-, o 2 45 45, Applicant:
Tokyo Shibaura Electric Co., Ltd., ~, th bite-籠 jlAyv −-1-1 1 317 728 "244 、, 25 29 30 26 4 WI
728 144 2 \ 25 333 226-? i7-31502-1 "0 Applicant Tokyo Shibaura Electric Co., Ltd. (·) Power of
attorney l system number Uiv; lW2 毘 υ" 1 statement (3) drawing 1 statement (4) 11 111 1
branch tree 1 statement Inventors other than the above, utility model registration applicants or
agents (1) Inventor Kananashi-s8, Shinko Shicho Hama-ku, Hama-shi Higashi-Toshiba Ura
Electric Electric Co., Ltd. Sound studio in-house musician ◆ 儒 同 啓 啓Mr. Wei) Utility model
registration applicant (J agent (address: 21 Shiba-ku Kubo Sakuragawacho, Minato-ku, Tokyo,
17th ground, Morikawa. ...) Name (5743) Patent attorney Miki Takeshi 11 □-address. Place (・
1. Name, name (6694) Patent attorney Yuki Komiya tN: ′ ′ ‒ town Ichizuru ′ ′ Address Oka
office. Name (6881) Patent Attorney Tsuboi h-τ 2 Address Nagoya City Naka Ward 18a-No. 116
No. Nissan Biological Unit, 'H +, rs, a (7113) Patent Treaty Sato 1,7, -2, 22 . '2' ,,,,,-[Fu Ji II: # 1. ク
ーIn
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