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DESCRIPTION JPS4969332

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DESCRIPTION JPS4969332
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing a conventional speaker,
and FIG. 2 is a speaker according to the present invention. FIG. 5 is a plan view of an
embodiment of a force. 3・・・・・・フレーム。 Fig. 1 Fig. 2-75-
DETAILED DESCRIPTION OF THE INVENTION This invention has a speaker K11I suitable for use
in a color television receiver * machine. In general, speakers are used for color television
receivers IIII, but the recent trend toward compactness of color television receivers gI has
become the trend of the age, and as the widening of color picture tubes becomes%, the
miniaturization becomes more and more Has been done. However, there is a disadvantage that
the receiver is miniaturized and the speaker approaches the color picture tube to cause jlliK
mislanding. That is, as shown in FIG. 1, in the conventional speaker, since the 7 lam 1 is made of
a magnetic substance, ie, iron, it becomes a large magnetic field, and the leakage flux from the ignet 2 affects the electron beam of the color picture tube.叶-gives 1 μm, as a result local Kt
strapping occurs, resulting in non-f looking both pictures. This device is regarded as the abovementioned situation, and by forming 7 frames of diamagnetic material, the magnetic field is
reduced by 11K and the influence on the electron beam is reduced to prevent mislanding and to
reduce the weight. Intended to provide. Hereinafter, one embodiment of the present invention
will be described in detail with reference to the drawings. As shown in FIG. 112, in the speaker of
this invention, the frame S is made of a diamagnetic material, for example, aluminum. As a result,
as shown in the drawing, the magnetic field becomes extremely small, and the leakage flux from
the magnet 4 decreases by about VzK compared to the conventional case. Therefore, when the
speaker of this invention is used for a color television receiver, the electron beam of the color
picture tube is not adversely affected by the leakage magnetic flux, the occurrence of mislanding
is prevented, and the color is excellent. Can make a comeback. Therefore, the speaker of the
present invention can contribute to the miniaturization of the color television receiver, and the
color picture tube 1 □ and the speaker may be disposed close to each other. As described above,
12-04-2019
1
according to the present invention, it is possible to provide a speaker t- of great practical value.
12-04-2019
2
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