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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a half sectional view showing an embodiment
of the speaker according to the present invention, FIG. 2 is an enlarged sectional view of the
same part, and FIG. It is a frequency characteristic figure. 1 ...... magnetic circuit, 6 ииииии frame, 8
...... diaphragm 9 ------ Furietsuji, 10 ...... cone portion, 11 - ----- soft elastic double-sided adhesive
tape, 12 ...... voice coil, 13 ... ... damper, 14 ... ... magnetic gap, 15 ...... dust cap.
[Detailed description of the invention] The present invention relates to a speaker using a free
edge type diaphragm, in which the free edge and the cone part are joined by a soft elastic screen
thin foil tape to make a flat one with a sound pressure frequency characteristic l. It is intended to
be a compromise. A conventional speaker of this type has seven cups of a diaphragm in which a
rubber adhesive is used to bond a 77 noonoji with a corn scale, or this rubber thread is exposed
to hardening or curing to produce an edge resonance. As shown by the broken line in FIG. 2 of
completed 33- = 7 'in FIG. The present invention eliminates the above-mentioned conventional
defects, and an embodiment of the present invention will be described with reference to the first
to third drawings. In Fig. 2, 1 is a magnetic 9 circuit, and this 5? 5 -path 1 plate 3 with a center
ball 2, a ring-shaped magnet 4, a ring-shaped 1 1 part The frame 6 is connected to the magnetic
flux circuit 1. The V edge of the free edge 9 of the vibration 8 + 8 is fixed to the peripheral noise
V of the frame 6 together with the caskerato 7 by an adhesive or the like. The upper front F
moving plate 8 has a free edge 9 at the peripheral edge portion of the cone portion 1o, and all
the soft elastic double-sided sticky tapes 11 are joined together. The soft and supple Tl 'n ? 7
table 11 has a configuration in which an acrylic adhesive layer having a thickness of about 0.2 is
provided on both sides of a non-woven fabric of P 8 to 1.0 mm. Acrylic adhesive is semipermanently hardened. The middle part of the Heus coil 12 is connected to the central part of
the new iron 88, and the middle part of the Heus coil 12 is supported by the damper 13, and the
lower part of the voice coil 12 is upper 11 The gap 14 is embedded without eccentricity. A dust
cap 15 is attached to the upper surface of the central portion of the vibrating plate 8. As
described above, since the real-named speaker uses a soft elastic double-sided adhesive tape
having a horse tooth by grinding free edge and corn juice as a root, it is necessary to use the soft
elasticity loss as the soft elastic double-sided adhesive tape. Double-sided adhesive-It can be put
on the pop and it is possible to stop the generation of the edge resonance, and the frequency
characteristic of the seven sound also uses soft elastic double-sided adhesive tape, so it will be
shown in the third circle. As you can see, it can be made extremely flat without the occurrence of
large tips in the mid-range, and it becomes the first in the shoulder for fidelity reproduction,
becoming a dog with practicality.
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