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JPS5412825

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DESCRIPTION JPS5412825
Description 1, title of the invention
Insertion part support member in the acoustic transducer
3, Detailed Description of the Invention The present invention is a vibration of an electroacoustic
transducer! The present invention relates to an improvement of a vibrating member supporting
member such as an edge or a damper which supports a piston vibrating body such as a 5f II plate
or a coil bobbin. For example, with regard to the edge, a so-called gathered type has recently
been proposed in which the edge itself expands and contracts in the circumferential direction
following the piston movement of the diaphragm. As shown in FIG. 1, this edge or an edge having
a V-shaped cross section and a peak and valley formed in a zig-zag shape in the circumferential
direction is as shown in FIG. That is, the position B in FIG. 2 is a neutral position, and this
position is not the position fac when the diaphragm 2 is at rest). Then, if the diaphragm 2 moves
upward, the edge 1r / 'im is at a minimum at the B position, and the landslide 0 of the V-shaped
portion of the edge 1 is larger than 0 at the image positions of m and C. Become. And if 0
becomes large, the edge 1 extends in the circumferential direction due to its characteristic, and
becomes smaller as it becomes smaller. However, the distance at the time of each operation from
the center of the diaphragm 2 to the valley of the edge 1EndPage: 1 is Rm <RB <Re, so that the
effective length in the circumferential path of the edge 1 is also proportional to this. For this
reason, in the B-1 region, the circumferential length increases as ? increases, so it is reasonable,
but in the B-M region, ? increases and the circumferential length extends. Even though it is
going to be used, the R-M (the circumferential length becomes short because it is RB, so that
there will be unreasonableness there. Therefore, as shown in FIG. 5, the operation became nonlinear and the response time was not good. Therefore, in the present invention, the neutral
position is set approximately in the middle between the regions B to C in FIG. 2 so that
12-05-2019
1
unreasonableness occurs in expansion and contraction in the circumferential direction due to
vibration, whereby a straight line which is good for the piston of the diaphragm It is an object of
the present invention to provide a movable part support member in an acoustic transducer, in
which the property is obtained. Hereinafter, the embodiment will be described with reference to
FIG. 3 and subsequent figures. In FIG. 3, the upper limit of vibration & 2 is G with 81 lower limit,
? minimum at upper limit B, ? maximum at lower limit 0, neutral position That is, h # is
substantially at the middle of the stationary position of the plate 2 (this is a device. Also, FIG. 4 is
the one in which the edge 1 in FIG. 3 is reversed. By selecting in this manner, the circumferential
method length increases in proportion to the increase in ?, so that no displacement occurs in the
displacement of the diaphragm 1 and therefore the characteristic as shown in FIG. There is less
risk of adversely affecting the response of the diaphragm.
4. Brief description of the drawings. FIG. 1 is a partial perspective view of a gear ''-) 'type edge,
FIG. 2 is its operation explanatory view, and FIGS. 3 and 4 are operation explanatory of the edge
according to the present invention. 5 and 6 are displacement characteristic diagrams of the
diaphragm in FIG. 1, and FIG. 6 is a displacement characteristic diagram of the diaphragm in FIG.
3 and FIG. 1 ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии ? ?
12-05-2019
2
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