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DESCRIPTION JPS5091543U
[0001]
13 [Fig.] FIGS. 1 and 2 are cross-sectional views of a conventional speaker, and FIG. 3 is a crosssectional view of an embodiment of the present invention. E. yoke (ball piece), 24... vibrating body, 25... voice coil FIGS. 1 to 97-Fracture JP 50-91543 (2) FIGS. 3 to 98-98
[0002]
19 [Problem to be solved] The present invention relates to a structure for a super-small road speaker such as that used in snow-covered devices, for example, watches.
21 With the use of such devices as free, portable radios and tape recorders, the speaker must be made smaller. <<>> The circle is a circle. However, since the conventional speaker has a structure in which the vibration film is supported on the outer periphery, the vibration width of the peripheral portion of the vibration film is not limited to a large ratio in terms of product, but is not limited to a large ratio in terms of product. At a temperature close to that of the above, the sound radiation did not act effectively. It is an object of the present invention to provide a speaker which is small in external shape and which has an increased acoustic radiation capacity. FIGS. 1 and 2 show a conventional O-speaker O-structure, in which an inner yoke (a yoke is disposed with the axes of the permanent magnets (the yoke having the axes of 1 and 6 aligned with each other) and fixed with an adhesive because a stacked permanent magnet (a cylindrical projection 1 is provided on a 110 mmK central axis) is provided. On the other hand, a disc-shaped vibrating membrane (4)K having a central recess is secured to a cylindrical cover O-voice coil (a coil is secured by an adhesive. The diaphragm 14 is secured to the outer periphery of the diaphragm support by an adhesive under suitable tension, and the diaphragm support (the diaphragm is constructed of the guide-iron (the diaphragm) attached thereto. On the other hand, in FIG. 2, a spacer (2) of a non-magnetic material is fixed to a twodimensional E2-shaped 0*-shaped-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-
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iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron- iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron- iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron- iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron- iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron-iron- iron-iron In the above-mentioned construction, since the aim film (41, 14aln is also marked on the "*" film supporting sheet (...#) and the peripheral portion is fixed to the surface, the portion is not marked on the blue peach and on the space because it does not vibrate almost. The present discussion has been made of a speaker 0 which has improved the above-mentioned disadvantages and will be described with reference to the embodiment shown in FIG. 3A, wherein a hook-shaped permanent magnet is laminated with adhesive to a yoke which is a mounting plate. The arm is a yoke (pole piece), a vibrating body, a voice coil, and the vibrating body is provided to cover a driving mechanism which may be constituted by the abovementioned 041811, preferably the arm 1 is provided with a fold #I as shown in the figure, or is provided with a plurality of lengths and is 3-flexible, and is fixed to the arm at its edge. By the above construction, the entire diameter of the diaphragm can be vibrated with a substantially uniform amplitude, and the driving impedance can be lowered, so that the waste of the conventional plate-shaped diaphragm is eliminated, and the acoustic radiation capacity and the shape can be reduced, which is a practical means.
57 The invention is applicable not only to dynamic speakers but also to speakers such as magnetic covers or piezoelectric speakers. A simple sample of 4 g. FIGS. 1 and 2 show a sectional view of a conventional speaker, and FIG. 3 shows a sectional view of an embodiment of the present invention, and (B) permanent magnets, -...L, (B) yoke (pole piece) % -...11 body,
(B) voice coil. The Applicant's Schizson Pharmacol, Inc.,/) Institute of Institute of Health, J.I., No. 4-1II3, now 5 DEG C. or 1*2 DEG C. (All, G.-Noro)) 3; 2 FIG. 3 324), -25 U.S. = C.I. = = = C.I.
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