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JPS5474516

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DESCRIPTION JPS5474516
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of a general acoustic device,
FIG. 3 is a connection diagram of a speaker connecting device according to an embodiment of the
present invention, and FIG. 4 is a perspective view of a connector. 5, 6 and 7 are diagrams
showing the coupling relationship between the jack and the connector. 1.11 · · · · · · · · · Amplifier
circuit, 2, 12 · · · · · · · · Polyum 22.23, 22 ', 23' · · · · · · · · · · · · · · · · · · Speaker. Figure 3 Figure 5
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speaker
connecting device which can easily change the number of speakers for one amplifier circuit. For
example, in the case of a car stereo or car radio for a car, for example, the output of one
amplification circuit can be heard only by the speaker provided near the driver's seat, or the
speaker provided on the rear seat side can be heard There is a method-'K-K / f 27. In such a case,
the amplifier circuit 1 and the volume 2 are prepared as shown in FIG. 1, and the speaker 6 is
connected to the terminals 3 and 6 according to the former method, as shown in FIG. If the
speaker 7 is connected to .4.5, the latter method is obtained. In the case where two speakers are
used or vice versa, the connection method may be simply changed, but there is a drawback that
erroneous connection is likely to occur. Moreover, the connection change is troublesome. The
present invention eliminates such a defect, and will be described below with reference to an
embodiment of FIG. 3 which is used in stereo reproduction. Here, 1.2.3.5 and 11.12 and 13 ° 15
correspond to 1.2 and 3.5 in FIG. 1, respectively. 4, 4 / and 14, 14 'correspond to 4 in FIG. 20 is
a jack having pins A-H and pins A-H connected to terminals 3-5. 13-15 as shown in the figure,
and M, N in the recess. Here, the jacks A-D and E-H are equally spaced at 3 ° or at one interval
as shown in FIG. 7, and the recesses M and N are opposite to the recess K Provided in In FIG. 4,
reference numeral 21 denotes a connector having electrical coupling holes a to d, and a, b
coupled with the loudspeakers 22, c, d to the loudspeaker 23, while having a convex portion X on
the-surface. Next, a method of coupling the connector 21 to the jack 2o will be described. First,
the convex part X of the connector 21 is coupled as shown in FIG. 5 so as to correspond to the
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concave part K of the jack 2o, whereby the speaker 23 is connected to the pins B and C of the
connector 20 and the speaker 22 is connected to the pins F and G. Ru. Here, it has another
connector 21 '(same shape as the connector 21) having the speakers 22' and 23 ', and the
connector 21 has pins A, B, E, F, 21' of the shackle 2o C, C, D, G. By making the two connectors
21 and 21 'correspond to the jack 20 as shown in FIG. 6 so as to correspond to H, the pins A and
B have speakers 23, C and D have <, 23', E and F have 22 , G, H are connected to each other, and
the relationship between the concave portions M, N provided on the jack 20 and the convex
portions X, XI provided on the connector 21.21 ' The polarity can be matched at the same time.
Therefore, normally, it is used in the state of FIG. 5, and when it is used as shown in FIG. 6, the
position λ of the connector 21 is changed, while the connector 21 ′ of the same shape is
changed to the jack 20 as shown in FIG. It is only necessary to make it correspond, and the
number of speakers can be easily changed. The concave and the convex may be reversed, and a
locking mechanism may be provided using this portion. Furthermore, it is more convenient to
handle by providing a rail for explaining the relationship between the connector and the jack on
the chassis or jack 2o (or connector) to which the jack 20 (or connector) is attached.
Furthermore, in the above embodiment, the explanation has been made with two amplifying
circuits 1.11. However, in the case of one amplifying circuit 1, the bin E-H of the jack 20
becomes unnecessary or open. -Use of volume 2.12 and non-use sorting can be easily performed
at I-5 °.
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