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JPS5734789

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DESCRIPTION JPS5734789
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows the structure of a conventional flat
diaphragm, FIG. 2 shows the structure of the flat diaphragm of the present invention, and FIG. 3
shows the structure of the main part of the same. It is. 1 is a plane diaphragm, 4 is an edge, and 6
is a sheet.
DETAILED DESCRIPTION OF THE INVENTION The present invention is an improvement of a flat
directional diaphragm for a slider (3. The slider having one conventional flat diaphragm is a flat
diaphragm (1) as shown in FIG. 1). A central portion (this whistle coil (2) is attached, and this
helical coil is placed in the magnetic gap of the external magnetic circuit (3) (this position is
configured to constitute a driving unit, Note) The outer peripheral portion (edge (4) of the Vplane diaphragm (1) is attached, and the outer peripheral portion of the step (4) is fixed by
bonding with the frame (5). Such a structure (in this case, the plane diaphragm is a thin plate of
synthetic wood j ′ ′ / 2 fat or light metal, etc., or a 1-6 rigid member such as Hikano, a
structure, etc.) The member has a small internal loss to vibration, causes split resonance or
abnormal resonance in a specific frequency range consisting of the plane diaphragm (1), and has
a high Q of these resonances to obtain flat frequency characteristics. I can not do it, and there are
many distortions. This cooking scheme is an improvement of such conventional defects, and it
will be described with reference to FIGS. 2 and 3 that the front surface or the back surface of the
flat diaphragm (1) has a large internal loss due to its softness such as total polyurethane foam.
The soil (6) is adhered, and the outer peripheral portion of this /--(6) is made an enon (4) (by
forming a corrugation / yon if necessary). In this embodiment, in order to attach the flat
diaphragm (1) and the Heuss coil (2) by bonding, a central portion (this hole (7) is provided) of
the toe (6). As shown in the following I-, this cedar plan is that the whole surface of the plane
diaphragm (1) is soft and covered with a large internal loss (−6), and split resonance or
abnormal resonance is sufficient (this Since the pressure is reduced to 3 pressure, strain is
significantly reduced, and a flat frequency characteristic is obtained, and the sheet (6) as a
11-05-2019
1
damping material is simultaneously used as a support member (work, y-n) Also, the structure is
simple, and it has an advantage of being easy to manufacture and well suited for mass
production.
11-05-2019
2
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