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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of the main part of the
skier of the present invention. Symbols in the figure, 1 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
annular packing, 6 и и и и и и и и и и и и и и ... restraining ring. ?????
DETAILED DESCRIPTION OF THE INVENTION This invention relates to a speaker, which
increases sound pressure by widening the effective radius of vibration of the diaphragm, and
facilitates easy attachment of the diaphragm to the frame. Purpose. 48-74041-02 In the case of
attaching the diaphragm to the frame in various speakers, an edge is formed on the outer
periphery of the diaphragm, and this edge is fixed to the outer periphery of the frame with an
adhesive or the like. The vibration area of the diaphragm is reduced by the width of the edge
because it is attached, and there is no choice but to increase the size of the speaker in order to
widen the vibration area. Sound quality is improved, but it is difficult to adjust. By providing an
edge to 11 works 4 complex i ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?In the case of fixing the
edge to the frame, there are many drawbacks, such as the time required for fixing due to the use
of the adhesive or the manufacturing time is long. This invention eliminates all the drawbacks as
described above (2) 48-74041-03, and an embodiment of the invention will be described with
reference to the drawings. A portion 2 is provided, and the tip of the flat portion 2 is integrally
provided with a rim 3 toward the front. An annular backing placed on the flat portion 2 of the 41
and 5 # i frame 1, which is made of a material with high elasticity to replace the edge, for
example, a material such as foamed polyurethane, which is helical Selection of materials is
required to be examined in order to require linear movement equivalent to springing. Reference
numeral 6 denotes a diaphragm made of cone paper or the like, and unlike the conventional
diaphragm, it is not necessary to attach any corrugation to itself, and the outer peripheral edge 7
is opened horizontally outward. A retaining ring for securing the pair of annular backings 4 and
5 of 8 # i to the flat portion 2 of the frame 1 and for providing appropriate compliance to these
backings (3) 4B-74041-044 and 5, one end of which is one end It is attached to the edge 3 of the
frame 1 by means of rivets 9. Therefore, when manufacturing the speaker, first, the annular
backing 4 is placed on the flat portion 2 of the frame 1, the outer peripheral edge 7 of the
diaphragm 6 is faced to the backing 4, and the annular backing 5 is placed thereon. After holding
the outer peripheral edge 7 of the diaphragm 6 by 4 and 5, the ring 8 is placed on the backing 5
and one end thereof is attached to the edge portion 3 of the frame 1 by rivets 9.
The speaker of this invention has the above-mentioned structure, and the diaphragm does not
have to be corrugated on its own, and it is not necessary to provide an edge on the outer
peripheral edge (4) 4B-74041-05, so the effective vibration The radius is 20 to 30% wider than a
speaker of the same diameter, and the radiation efficiency of sound switching is good, and the
diaphragm ? is held by a pair of annular backings without being fixed to the outer periphery of
the frame as in the prior art. The vibration does not generate abnormal noise due to one
resonance even if the vertical motion and frequency are raised, and by suppressing this by the
ring, it is possible to give the backing a suitable combination of 2! Also, the diaphragm can be
attached to the correct position and the o * nut * b ? ? ?) C @ ?K? C @ bfKE @ r @ f и 4,
which has various effects.
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