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JP2003109706

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2003109706
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
multi-channel speaker terminal mainly for audio equipment and video equipment, and a plug for
a speaker cable connected to the terminal.
[0002]
2. Description of the Related Art In recent years, so-called home theaters using audio and video
equipment have become widespread in general homes, and the development of multi-channel
speakers has progressed, and speakers for multiple channels are connected to audio and video
equipment. Things have increased.
[0003]
[0003] When the number of channels of speakers in audio and video equipment advances, the
speaker terminals provided in the equipment also have an output terminal array corresponding
to a plurality of speakers, so that erroneous connection is likely to occur. Is pointed out.
For this reason, conventionally, while the terminal is color-coded for each channel, the same
color is also attached to the speaker cable side to prevent erroneous connection, but in the
conventional color-coding method, a plurality of colors are respectively used. Prepare printed
labels in advance, attach each label to the terminal of each channel terminal, or directly print
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color-coded for each channel on the terminal panel to which each channel terminal is attached
However, it is troublesome to produce different color labels corresponding to each channel and
stick them to the output terminal of each channel, or to print the terminal panel color-coded for
each channel.
[0004]
On the other hand, if the number of loudspeaker cords to be connected to each speaker increases
as the number of channels of the loudspeakers to be installed increases, the cable terminals of
the plus and minus sides of the loudspeaker cables are connected to the input terminal of the
loudspeaker box. The work of connecting to the network is also very time consuming and
cumbersome.
[0005]
In view of this point, in the prior art, for example, the clip box is provided with an input terminal
of a type for holding the stranded wire of the cable, and the stranded wire obtained by peeling
the coating of the speaker cable on this terminal is It is known that the terminal is fitted in and
connected.
However, this type of input terminal also has color coding of positive and negative poles so as
not to mistake the polarity of the speaker cable, and can not prevent connection errors between
channels, and each cable Since it is necessary to separately connect the + side and-side cables to
the respective terminals, the troublesomeness of the connection operation in the case of multichannel speakers is not much improved.
[0006]
SUMMARY OF THE INVENTION The present invention has been made in view of the current
situation of the connection form of the speaker terminal for multiple channels and the cable of
the multiple channel speaker to the terminal in the audio and video apparatus as described
above. It goes without saying that two speaker cables for one channel can be connected to the
speaker terminal of that channel by one-touch operation, but the color of components exposed to
the outside of the speaker terminal for each channel and the configuration of the plug for the
speaker cable An object of the present invention is to provide a multi-channel speaker terminal
and a speaker cable plug for each channel, in which connection errors between channels do not
occur by commonizing the color of members with different hues for each channel. It is.
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[0007]
SUMMARY OF THE INVENTION The structure of the speaker terminal of the present invention
made for the purpose of solving the above problems is a plurality of speaker terminals connected
to + and-terminals of two or more speaker plugs. In the multi-channel speaker terminal having a
plurality of terminals connected to the circuits of audio and video equipment, the side into which
the speaker plug is inserted is colored in a different color for each channel. It is characterized in
that it is color-coded.
Here, the color coding for each channel may be formed by using materials colored in different
colors for each cover exposed on the outer surface on the plug insertion hole side for each
channel in the speaker terminal.
[0008]
Further, the configuration of the plug for a speaker according to the present invention which is
preferably applied to the terminal according to the present invention is connected to positive and
negative terminals of each channel in a multi-channel speaker terminal color-coded for each
channel. In the plug main body provided with the positive and negative terminals and the cable
insertion holes respectively communicating with the both terminals, the positive and negative
speaker cables inserted into the plug main body at the time of folding are both ends of the plug
main body A pivotable cable pressing member provided with a tongue-like pressing portion for
pressing and connecting to a child is provided in a pivoted manner, and the cable pressing
member is provided with a plug main body for each channel in the terminal. It is characterized in
that it has the same color as the color classification.
[0009]
In the speaker cable plug of the present invention described above, the cable holding member is
marked with a mark indicating the polarity of the cable inserted into the plug body, and the
speaker cable connected to the plug has the wrong polarity. There is also no configuration.
[0010]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings,
preferred embodiments of the speaker terminal and the speaker cable plug according to the
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present invention will be described.
1 is a perspective view of an example of the speaker terminal according to the present invention,
FIG. 2 is a perspective view before connecting a cable in an example of the speaker cable plug
according to the present invention, FIG. 3 is a side sectional view of the plug of FIG. FIG. 5 is a
perspective view of the plug of FIG. 2 with the speaker cable inserted, and FIG. 5 is a crosssectional view of the plug of FIG. 4;
[0011]
In FIG. 1, 1 is provided with speaker output terminals 2a and 2b for eight channels as an example
here, inside each section, and the plug insertion holes 31 to 8 in the square section seen from the
front side The terminal main body 41 forming the 38, and the rear covers 41 to 48 which also
serve as terminal holding members respectively mounted on the back side of the plug insertion
holes 31 to 38 in the terminal main body 1, each cover 41 to 48 is They are all made of the same
form but made of different colored materials.
41In each of the back covers 41 to 48, a to 48a are formed so as to be positioned on the left and
right sides of the entrances of the insertion holes 31 to 38 at the front end portions of members
constituting the respective side surfaces. Thus, different colors indicating the insertion holes 31
to 38 appear on the left and right sides of the insertion holes 31 to 38.
[0012]
The front ends 41a to 48b of the back covers 41 to 48 may be formed with the covers 41 to 48
so as to appear above and below the entrances of the insertion holes 31 to 38, respectively.
Further, the front end portions 41a to 48a of the covers 41 to 48 do not have to appear on the
left, right or upper and lower sides of the insertion holes 31 to 38, and may be any one.
Furthermore, in the case where the terminal main body 1 has a structure for mounting parts to
be mounted to the main body 1 by fitting or the like on the front side of the plug insertion holes
31 to 38, these parts are It may be attached by parts having different colors for each channel. As
described above, an example of the speaker terminal ST according to the present invention in
which marks of different colors are attached to the insertion holes 31 to 38 into which the
speaker plugs of the respective channels are inserted is formed.
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[0013]
In the present invention, in the illustrated example, all the back covers 41 to 48 have different
colors for each channel regardless of how many channels the plug insertion holes 31 to 38 have
for the speaker terminal ST. It is made of a material exhibiting achromatic color and
transparency, and a part of its covers 41 to 48 (in this example, the front end portions 41a to
48a) are visible from the front side of the terminal body 1, that is, the outside of the plug
insertion side What can be done is a requirement, and the form of each terminal itself, its
attachment structure, holding structure, etc. may be any form.
[0014]
For the speaker terminal of the present invention formed as described above, in the present
invention, the plug for the speaker cable described with reference to FIGS. 2 to 5 is used.
By using the speaker cable plug according to the present invention, the connection between the
multi-channel speaker and each output terminal of the multi-channel speaker terminal in the
amplifier etc. is extremely easily and rationally eliminated without erroneous connection between
the channels. As this can be done, this point will be described below.
[0015]
The plug PL for a speaker according to the present invention illustrated in FIGS. 2 to 5 has a plug
front half 5a of an outer shape which is insertable into and removable from the plug insertion
holes 31 to 38 in the terminal ST. And the terminals 6a and 6b respectively connected to the
positive and negative terminals 2a and 2b of the terminal ST, while the plug rear half 5b integral
with the front half 5a communicates with the two terminals 6a and 6b. The terminal 8 has the
insertion holes 7a and 7b of the cable 8 of both poles, and the coating of the tip end inserted in
the holes 7a and 7b is peeled off. A lever-like cable pressing member 9 having tongue-like
pressing portions 9a, 9b for pressing and holding the contact portions 6c, 6d of 6a, 6b on the tip
end side is provided on the plug rear half 5b It is equipped with a pivot on the side wall for free
movement.
[0016]
In a state where the cable pressing member 9 is erected about 60 degrees about the shaft 9c (see
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FIGS. 2 and 3), tongue-shaped pressing portions 9a and 9b for pressing the twisted wires 8a and
8b. Are located at substantially the same height as the upper side of the inner diameter of the
insertion holes 7a and 7b of the cable 8, so the twisted wires 8a and 8b inserted into the holes 7a
and 7b contact the contacts 6a and 6b from the holes 7a and 7b. It does not become an obstacle
to enter on the parts 6c and 6d.
In addition, the pressing member 9 accurately guides the twisted wires 8a and 8b, which are
made to enter from the holes 7a and 7b at the time of standing up, on the contact portions 6c
and 6d to be connected respectively. Guide wing pieces 9d and 9e are disposed at positions
sandwiching the respective pressing portions 9a and 9b from both outer sides respectively, and
are formed so as to function as guide grooves for inserting a stranded wire.
[0017]
Reference numeral 10 denotes a groove-like mark engraved on the operation portion 9f of the
cable holding member 9. This mark 10 is inserted into the plug PL of the present invention and
held, and in the illustrated example, two marks are shown. It is for identifying the polarity in the
cables 8 and 8 and preventing reverse polarity connection. In the illustrated example, the mark
10 is formed by one groove by moving the mark 10 to one side of the operation portion 9f of the
cable pressing member 9, but the form of the mark 10 is not limited to this. It may be other
display form such as setting.
[0018]
As described above, an example of the mechanical structure of the speaker cable plug PL of the
present invention is formed. However, in the plug PL of the present invention, the cable pressing
member 9 is used in the speaker terminal ST of the present invention described above. It is one
of the requirements to use a member having the same color as each color of the back cover 41 to
48 different in color attached to each plug insertion hole 31 to 38.
[0019]
That is, in the speaker cable plug PL of the present invention, the color of the cable pressing
member 9 is the same as the color imparted to the plug insertion holes 31 to 38 in the speaker
terminal ST of the present invention. In order to visually confirm that each of the multiple
speakers (not shown) is connected to the output terminal of the channel that sends a signal to
that speaker without fail, in order to avoid erroneous connection between each channel. is there.
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[0020]
Effects of the Invention The present invention is as described above, and the following effects can
be obtained.
First, a speaker terminal for connecting a plurality of speakers for multiple channels is formed so
that a plurality of plug insertion holes provided in the terminal can be identified by a color given
to each channel. The plug has a structure in which each speaker cable for each channel
connected to can simultaneously hold and release two twisted wires for one speaker by one plug,
and the cable is held and released Since the operation part of the plug for the purpose is formed
in the same color as the color given to each plug insertion hole of the terminal or in the vicinity
thereof, the speaker of each channel is the terminal of the other channel There is an effect that it
is possible to prevent the misconnection to only by visual judgment.
[0021]
Also, since the speaker cable plug has a structure capable of simultaneously connecting and
releasing two speaker cables in one operation, even with a large number of speaker cables for
multiple channels, it is easy and quick. It becomes possible to connect to a speaker terminal for
multiple channels.
Along with this, there is an advantage that it can be easily coped with even when it is desired to
replace the speaker cable in use with another cable on the way.
[0022]
Brief description of the drawings
[0023]
1 is a perspective view of an example of the speaker terminal of the present invention.
[0024]
2 is a perspective view before connecting a cable in an example of the plug for a speaker cable of
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the present invention.
[0025]
3 is a side sectional view of the plug of FIG.
[0026]
4 is a perspective view of the plug of FIG. 2 with the speaker cable inserted.
[0027]
5 is a cross-sectional view of the plug of FIG.
[0028]
Explanation of sign
[0029]
ST speaker terminal 1 terminal body 2a, 2b speaker output terminal 31 to 38 plug insertion hole
41 to 48 back cover 41a to 48a front end part PL of rear cover plug for speaker cable 5a plug
front half 5b plug rear half 6a, 6b connection terminal 6c, 6d contact portions 7a, 7b insertion
holes 8 cables 8a, 8b twisted wires 9 cable pressing members 9a, 9b tongue-like pressing
portions 9c shafts 9d, 9e guide wings 9f operation portions 10 groove marks
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