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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a central longitudinal sectional view showing
an example of a conventional acoustic transducer, and FIG. 2 is a central longitudinal sectional
view showing one embodiment of the acoustic transducer according to the present invention. 4 иии
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 7 Range, 11 и и и и и и и inclusions.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an acoustic
transducer in which the connecting portion between two members such as a yoke plate and 72 in
a speaker and a microphone, a horn and a plate, an equalizer and a grate are improved. scold.
Coupling between two members of this type required dimensional accuracy in relation to the
voice coil. For example, a combination plate of a yoke plate and a flange will be described with
reference to FIG. 1 is a yoke having a pole piece 1 turtle, 2 is a noise absorbing print filled in a
hole pierced by a pole piece 1 turtle, 3 is a magnet, 4 is a yoke plate, 5 is 7 Lanzo, 6, 6 is a yoke
plate 4 The outer edge of the 1JjK diaphragm 1 is held by a padkling interposed between 7 and 7
range 5. A coil bobbin 8 has a voice coil 9 wound around the outer periphery thereof. The
reference numeral 10 denotes a screw that integrates the yoke plate 4 and the 7 runge 5. In the
above configuration, it is necessary to accurately fit the yoke plate 4 and the flange 5 with each
other in the relationship with the voice coil 9. In the prior art, therefore, the dimensional
tolerance of the fitting portion between the yoke plate 4 and the 7 runge 5 is processed to a high
degree to improve the assembly accuracy. For this reason, the cost per unit price of nine items
has increased because the number of processing steps for parts is large. Also, the handling of
parts must be carefully done and the control is low 1. Iron powder etc. are scattered during
fitting, which causes the magnet 3 to crush 6 and cause the occurrence of a flicker. The failure
rate was 10 to 15 percent. This consideration A is made in view of the oblique point, and its
tenth object is to reduce the cost of the parts since it is not necessary to tighten the tolerance of
the fitting 1liiI of the mo product. To provide the A second principle of the present invention is to
provide an acoustic transducer which can be accurately fitted with an iron powder without
scattering by interposing an elastic member at the fitting portion. It is to be. Next, an
embodiment of the present invention will be described in connection with the yoke plate and the
flange portion. In addition, FIG. 1 and lL. "-Strike sign show the same components and abbreviate
| omit description. The fitting portion between the yoke plate 4 and the flange 5 is roughly
formed with a high degree of precision, and is processed by forming a gap 1-. And the
intervention of a paint, an adhesive agent, etc. which gives elasticity to the fitting part of the yoke
plate 4! Apply 1 ? 11. This medium of LkLmll may have specific softness.
Next, after the inclusions 11 are dried, the fit-in portion of the 7-range 5 is fitted through the
interpositions 11. At this time, since the inclusions 11 have elasticity, even if there is some
application unevenness, the average thickness of the inclusions 11 can be maintained at a
regular distance, and the degree of shattering after assembly can be sufficiently ensured. Then,
by screwing and fixing the screw 10 to the coke plate 4, the both are integrated. This invention is
suitable for attaching a j-wedge system to a 7-lane 5 and then crimping it to the flange 5t-yoke
plate 4. In addition, in the case of Kamiki-in the example, the yoke plate 4 is shown to be
intervened and 11 is applied, but the intervention II! Both flanges 111 or yoke plates 4r and 7
may be Km cloth. Further, the present invention is not limited to the fitting portion between the
yoke plate 4 and the 7 flange 5 and can be used in the relationship between a horn (not shown)
and the yoke plate 4 or an equalizer (not shown) and the yoke plate. Of course. As described
above, this invention spreads an elastic material, an adhesive, etc. having elasticity in one or both
of L-minutes requiring accuracy, and after drying it is fitted with both. Even if you don't make the
pottery of the mating part strict, you can get the degree of stacking between the two, thus
reducing the number of processing steps of the parts and reducing the cost or glare as well as
the simple operation. In addition to the reduction of the defect rate, the component f can be
easily filled. There is no possibility that T) k powder will be generated due to non-contact of
metals at the side or bottom side, so that it has an effect such as reduction of generation of
defective products due to flicker etc. Jo
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description, jps5372932
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