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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a loudspeaker equalizer
according to the present invention, FIG. 1 is a front view, and FIG. 2 is a sectional side view of the
same. 1 ...... equalizer, 2 = ... Metsu / Yu, 3 ...... sound path hole.
DETAILED DESCRIPTION OF THE INVENTION This invention relates to a loudspeaker, and more
particularly to an equalizer suitable for being placed on the front of a loudspeaker such as a
dome-shaped loudspeaker with a vibrating diaphragm. An equalizer for a normal dome-shaped
speaker is a combination of management of R wave a # # characteristics and external mechanical
force to the diaphragm, eg, an external force applied by a hand or the like. ・! Used for the
purpose of protection, a pressed gold block plate and a molded synthetic resin plate are used,
and an equalizer is provided with sound through holes for passing all sound waves from the four
diaphragms. Conventionally, this sound through hole is not protected as it is but is open.
Therefore, the equalizer can protect the diaphragm against the external force applied to the
entire equalizer, but the diaphragm is not protected at all against the external force by the finger
tip inserted from the sound through hole and other small articles. Another drawback is that dust
from the sound holes is deposited on the diaphragm and the performance of the diaphragm is
degraded. Therefore, what can be considered as a method of improving the above-mentioned
drawbacks is to paste mesh on the surface or ~ 1 long surface of the equalizer, but in this
method, it is necessary to The process of laminating 1 is increased and there is a defect in
workability. This invention was made in view of the point on the ridge, and for its first purpose, a
mesh is placed in the sound through hole, the diaphragm is kept against the external force from
the sound through hole, and the cliff is It is to provide a speaker equalizer km that prevents
intrusion. A second object of the present invention is to provide a speaker equalizer which is
excellent in workability and easy to manufacture by forming a mesh at the time of molding of the
equalizer, and which can increase the mesh tension. Next, F □□, which will be described
together with one embodiment of the present invention, is an equalizer with a moldable material
of synthetic w oil temple, and its shape is variously adapted to the shape of the speaker
diaphragm What can be considered. 2ri metal mesh, mesh with synthetic resin or the like, and
inserted into the mold at the time of mold molding of the above-mentioned equalizer. Reference
numeral 3 denotes a sound through hole provided in the equalizer 1 and the mesh 2 is exposed
only in this portion. That is, it is a hole formed at the time of equalizer 1 (4) mold molding.
According to the present invention, since the mesh 2 is exposed in the sound through hole 3, the
diaphragm can be protected from the external force by the finger ripper of the sound through
hole 3 or the small object vc. At the same time, it is possible to prevent dust from entering and to
prevent the deterioration of the performance due to the accumulation of breath of the L
Mesh 2 is inserted at the time of molding of Equalizer 1 and does not require bonding for
attachment of mesh 2 and so on. Accordingly, the workability is good and the manufacture is
easy and the tension of mesh 2 is large and sound In addition to the fact that there is no special
flicker, there is a choice of mesh material and there is an own device with a design, the
appearance is also excellent, and it has an effect such as producing design effects.
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