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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of the flat panel speaker
before improvement, FIG. 2 is a cross-sectional view of the flat panel speaker of the present
invention, FIG. 3 is a plan view of the cone paper of the present invention, and FIG. Frequency
characteristic chart. 1 is a diaphragm, 2 is a cone paper, 3 is an edge, 4 is a flat plate portion, 5 is
a child coil, and 6 is a frame.
DETAILED DESCRIPTION OF THE INVENTION 1) The present invention is an improvement of the
cone shape of the low-pass ... speaker: え, 、, 、, p, a-x-p □ 4, 3-, 66 66p. On the same day the
practical use of '-# proposal registration order (1) Hirai Z Z speaker 9n 1a + drying center Sun 7
full 12 Macnet 8 and Bato 9 make a naive circuit F4Ir, pre-one The frame 6 was placed on the
upper surface of the frame 9 to form a center 7-1.154 I // 袷 2 ′ ′ -Lure, the plate 9 had
magnetic nitrogen ≧ 11,000. The voice coil 5 is arranged at the center of the magnetic 9 gap 、,
and the lower end II of the frame 6 (vc I &! The voice coil 5 is held by the damper 11 attached to
the center and the inner periphery of the circular arc shaped annular edge 8 is stuck to the
periphery of the cone paper 10 for hanging the voice coil 5 at the center. In the speaker with the
outer periphery of the frame 6 attached to the outer periphery, the annular wedge plate portion
12 is provided inside the edge 3 attaching portion of the core paper lO, and the lower surface
periphery of the disk-shaped diaphragm 1 is attached to the flat plate portion 12 It is a flat
folded speaker. In this case, as shown by the dotted line in FIG. 4 frequency characteristic, there
is a defect that a valence of the characteristic is noticeable due to the resonance by #lIK in a disk
shape at 10 (jO Hz to 5000 Hz). As shown in Fig. 2 and Fig. 3 as shown in Fig. 3 and Fig. 3, the
magnetic circuit and the magnetic gap are as follows: The voice coil is arranged at the center of
the magnetic gap as in FIG. 1 and the voice coil i is disposed at the center of the magnetic gap
and is attached to the lower part of the frame 6. A speaker number in which the periphery of the
circular edge 3 of the cross section arc shape 3 is pasted on the periphery of the cone paper 21553 on which the paper 5 is dropped, and the outer periphery of the edge 8 is pasted on the
outer periphery of the frame 6 The medium M cross-section of the cone paper 2 is formed into a
truncated quadrangular pyramid with the lower end being contracted upward to form a
truncated quadrangular pyramid from the upper end opening and the edge 8 sticking portion is
provided with the mo plate 4 Is a flat type speaker in which the lower surface is attached to the
flat portion 41 '. ′ooよ5.。 2. ヶ。 As shown by the solid line of the frequency
characteristic shown in FIG. 4, frequency deviation from 1000 Hz to 5000 Hz due to the joint VC
is small, and the characteristic improvement is remarkable. . 4, a simple setter $ 1 in the drawing
is a cross-sectional view of the flat type speaker before the improvement. Fig. 2 is a cross section
tf + i of the present invention 10 ス ピ ー カ speaker, Fig. 8 is a half surface of the present cone
paper Fig. 4 Frequency holding · lI +: Diagram 1) Diaphragm 2 is cone paper 3 is edge 4 is flat
plate W, 5 is voice coil 6 base frame utility model registration applicant Onkyo Co., Ltd. 1156.
Including 9 large 2 m 吟 2 6 3 same × · (115 794! / Z Utility model registration applicant Onkyo
Co., Ltd. and a company attorney-Mr. Saeki ■ Taibe-1 ° 1 δ t, Ity 1 1 t (group I 実 用 utility
model registration applicant On Ryoyo Co., Ltd. Patent attorney當 彌 part 115y 9 ai, □ 58. 6.
Other than the above inventor (1) inventor address Osaka Prefecture Neyagawa City Nisshincho
2nd No. 1 Onkyo Co., Ltd. Ishii Yoshikas Name Ishii Yoshi-) 1159-I, / I-79g-
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