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JPS4984014

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DESCRIPTION JPS4984014
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a conventional ribbon type
acoustic transducer, FIG. 2 is a sectional view of a ribbon type acoustic transducer according to
the present invention, and FIG. 3 is a plan view of another embodiment. Figure 1 Figure 4 is a
cross-sectional view of another embodiment. DESCRIPTION OF SYMBOLS 1 ... ribbon diaphragm,
2 ... adhesive agent, 3 ... magnetic pole, 11 ... side edge part, 31 ... magnetic pole surface. t FIG. 1
1 35 1 st 1 actual opening 49-840i 4 (2) FIG. 3 FIG. 4 −36
[Detailed description of the invention], in-vehicle real axis electric wave type acoustic rewriter: ll
L, 侍 L 9 bo 1, □□□. □□。 オ、。 In the conventional ribbon type acoustic converter, the first
vJK-<side end portion 11 of the ribbon vibration plate # 1 which is dangling from the conductive
member is formed in a planar shape. When 2 was flowed, the adhesive flowed unnecessarily to
the ribbon #jIlIl plate, so that the sensitivity was lowered, and it was 1 有 し with the
disadvantage that the variation occurred. The present invention was made to solve the abovementioned drawbacks. That is, the first object of the present invention is to stabilize the weight of
the vibration system by 1 (1), and to provide a Bonn-type acoustic rewriter which is free of
deterioration and variation of acoustic characteristics. Father, the second object of the present
invention is to provide a ribbon type connector @ which simplifies the welding process of the
ribbon storage plate and improves the workability. Hereinafter, an example of the present
invention will be described in detail according to the drawings. Ribbon type acoustic change
shown in @ 2 figure! I, the side end 11 of the ribbon & moving plate facing the magnetic pole 3 is
bent to form a 閏 KF shape of the IIs surface 31 of the magnetic pole 3 and the bending edge 1 of
the ribbon 擾 III plate 1 To form a hollow space portion, and bonding is performed by flowing an
adhesive 2 to the empty I'll j portion. The contact angle between the side end face 31 of the
magnetic pole 3 and the fold side * part hook of the ribbon vibration plate 1 is an angle which
does not flow out the adhesive 2 introduced into the formed air music. -. Next 31i! In the actual
example shown in FIG. 4, the ribbon diaphragm 10 side end 11 is folded in a V shape, and the
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side end W13 of the magnet 113 is the same as in the actual sound example shown in FIG.
Ribbon swing! This is a structure in which a 閤 KF-shaped space portion is formed with the end
portion 1 of the Fi plate. In this embodiment, since the side end 1111J1 of the ribbon diaphragm
1 is V-shaped Ilc, the acoustic characteristics are improved. As mentioned above, as mentioned
above, firstly, the amount of adhesive steel can be made to meet with the car design company,
and the weight of the vibration system can be reduced, along with i. Since the jointing work S is
simplified, the workability is improved, and the amount 11Je has a large effect such as leaving 1
etc. for practical use.
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