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JPS5160840

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DESCRIPTION JPS5160840
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 and FIG. 2 show the structure of a conventional
speaker diaphragm, FIG. 3 shows the structure of an embodiment of the present invention, and
FIG. FIGS. 5 and 6 are diagrams showing frequency characteristics, and FIGS. 5 and 6 are
diagrams showing other embodiments of the present invention. 1 is a cone paper, 2 is a ringshaped light metal pipe. 困 1 distress second one 89 1 一 51-60 40 40 (2) punishment 埠 +
figure Q / 六 八 六, door, one 'N' / I 'l + 6 "1 8. , Hel.A.,. Le. -'−' Α 501 0020 Cl η + O o 0 π N
field ρ α υ number of fluid [Hz] 口 5 ports I 6- 90-
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a diaphragm for a
speaker employing a novel structure for reinforcement of cone paper. In general, a free enon
type speaker diaphragm has a structure in which an enon 2 is fixed to an outer peripheral end of
a cone sheet 1 as shown in the drawing. The cone paper 1 is required to be light and rigid or
sufficiently large in addition to various acoustic characteristics. This one requirement is
extremely contradictory, and the light weight scraping of the cone paper 1 makes it stiff or
significantly reduced, and in particular, the cage type shown in the figure shows the entire
reproduction frequency range (stagnation and vibration. In particular, the reverse of the
frequency transition from the Bistno vibration region to the divided vibration region ”(vibration,
distortion in the piston vibration region and distortion of the vibration state in the divided
vibration region or 17 Frequency characteristics could not be obtained. Therefore,
conventionally, as shown in FIG. 1, the outer peripheral end of the corn paper 1 is bent backward
to provide a reinforcing rib 3, or as shown in FIG. 2, the outer peripheral end of the corn paper 1
is reinforced. Adhesive 4 was applied to 3 parts of the riff. However, Aijg tends to be uneven
during production of corn paper and is difficult to form and process uniform reinforcing rib 3,
and the latter is difficult to uniformly apply adhesive 4 and therefore neither is suitable for mass
production. The reinforcement of corn paper 1 was only one minute, and the various drawbacks
caused by the lack of rigidity were not ignored. The present invention is an improvement over
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these shortcomings. FIG. 3 shows an embodiment of the present invention, in which 1 is a pillowshaped cone, 2 is an open, and 5 is a link-like light metal pipe. In order to do it, it is made in the
shape of a vibrato with a light metal such as nyuralmino and aluminum. This paste-like light
metal 1 pipe 5 is adhered to the outer 6 circumferential ends of the cone paper 1 with an
adhesive, or as shown in the drawing, for reinforcement and link-like provided on the outer
peripheral end of the corn paper 1 The light metal pipe 5 is fitted into the fitting rib 6 of the light
metal pipe 5 and fixed with an adhesive. FIG. 5 shows another embodiment in which the
reinforcing structure according to the present invention is directly applied to ordinary conical
cone paper. Fig. 6 is the same as before, Finoxode of the structure in which the light metal
vibrator 5 is fixed to the innermost circumference of the edge 2 of the edge 2! 7 illustrates
another embodiment of a tie. In that case, since it is reinforced by the link-like light metal pipe 5
excellent in material and structural strength because it is compressed to the conventional
reinforcing structure with the reinforcing rib 6 or the adhesive 4 at the outer peripheral end of
the cone paper 1 Vibration, suppression, etc. In particular, reverse resonance at the frequency of
transition from the piston vibration region to the divided vibration region, distortion in the piston
vibration region, or disturbance in the vibration state in the divided vibration region is
sufficiently suppressed; A flat frequency characteristic with little distortion, particularly the
second tuning wave distortion, is obtained over the entire reproduction frequency band as
indicated by the solid line a.
Also, since the light metal vibrator 5 is easily manufactured and made of a uniform material, the
reinforced or uniform cone paper 1 is produced. Furthermore, since the reinforcing structure of
the present invention can reinforce the corn paper l by more than seven minutes, the quality by
the light metal pipe 5 can be sufficiently compensated by the weight reduction of the corn paper
l, As a whole, the overall quality of corn paper 1 can be reduced and the radioactivity can be
reduced. As described above, since the present invention has a reinforcing structure in which the
light metal pipe 5 in the form of a ring is fixed to the outer peripheral end of the corn paper 1,
there is little distortion in reproduction, vibration in the form of disturbance, tip and peeling It is
possible to find a flat frequency response that has been deceived, and have a high fidelity
speaker 11
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