JP2009005263

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DESCRIPTION JP2009005263
An object of the present invention is to improve the fall prevention function of a speaker while
improving the appearance of wiring. A speaker includes a speaker body and a speaker cord
connected to the speaker body. The speaker cord includes a signal wire for supplying an electric
signal to the speaker body, a fall preventing wire for preventing the speaker body from falling,
and a cover member collectively covering the signal wire and the drop prevention wire. And a
mounting portion for mounting the signal wire and the fall prevention wire to an external
structure through the cover member. [Selected figure] Figure 1
Speaker and speaker cord
[0001]
The present invention relates to a speaker and a cord for a speaker.
[0002]
Conventionally, for example, a speaker is known which supports a speaker body by hooking a
speaker cord on a hook located on a ceiling (see, for example, Patent Document 1).
However, since the speaker main body is supported only by the speaker cord, the speaker main
body is to fall as it is if the speaker cord breaks. In order to prevent this, in recent years, a
speaker has been developed in which a fall prevention wire separate from the speaker cord is
attached to the speaker body. Specifically, as shown in FIG. 9, a speaker cord 102 and a wire 103
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for fall prevention are connected to the back surface of the speaker main body 101 in the
speaker 100. The speaker cord 102 is connected to the amplifier and supplies the electric signal
output from the amplifier to the speaker body 101. On the other hand, the wire 103 for fall
prevention is provided with a fixing ring 104 at its tip, and the screw 105 is inserted through the
fixation ring 104 and screwed onto the wall 106, whereby the wire 103 for fall prevention is
attached to the wall 106 It is supposed to be fixed. As a result, the speaker body 101 is
connected to the wall 106 via the drop prevention wire 103, and the drop of the speaker body is
prevented. Japanese Utility Model Application Publication No. 2-10687
[0003]
By the way, as described above, when the speaker cord and the fall prevention wire are
respectively provided, the wiring becomes complicated as compared with the case where only the
speaker cord is provided. In particular, if only the speaker cord is attached at the time of
installation of the speaker, the sound is emitted, some users may not attach the fall prevention
wire, and there is also a possibility that the fall prevention function can not be exhibited.
[0004]
Therefore, an object of the present invention is to enhance the drop prevention function of the
speaker while improving the appearance of the wiring.
[0005]
The speaker according to the invention of claim 1 comprises: a speaker body; a speaker cord
connected to the speaker body, the speaker cord is a signal wire for supplying an electric signal
to the speaker body; A wire for preventing fall of the speaker body, a cover member for
collectively covering the wire for signal and the wire for fall, and a wire for signal and the wire
for fall prevention via the cover. And a mounting portion attached to the structure of
[0006]
The invention according to claim 2 is the speaker according to claim 1, wherein the attachment
portion holds a wire rod for signal and a wire for fall prevention in a state where the wire rod for
signal is insulated, and the wire rod holding portion And a fixing part for fixing the part to the
external structure, and the fixing part switches the insulation state of the signal wire to a
conduction state when the wire holding part is fixed to the external structure. And
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[0007]
The invention according to claim 3 is characterized in that, in the speaker according to claim 2,
the signal wire is insulated from the external structure and the fall prevention wire.
[0008]
The speaker cord according to the invention of claim 4 comprises: a signal wire for supplying an
electric signal to a speaker body; a wire for preventing drop for preventing the speaker body
from falling; the wire for signal and the wire for fall prevention It is characterized by comprising:
a cover member which collectively covers a wire; and an attaching portion for attaching the
signal wire and the fall prevention wire to an external structure through the cover member.
[0009]
The invention according to claim 5 is the speaker cord according to claim 4, wherein the
attachment portion holds the signal wire and the fall preventing wire in a state where the signal
wire is insulated. And a fixing portion fixing the wire holding portion to the external structure,
wherein the fixing portion switches the insulation state of the signal wire to a conductive state
when the wire holding portion is fixed to the external structure. It is characterized by
[0010]
The invention according to claim 6 is characterized in that, in the speaker cord according to
claim 5, the signal wire is insulated from the external structure and the fall prevention wire.
[0011]
According to the present invention, since the signal wire and the fall prevention wire are
integrated by the cover member, the wiring can be simplified and the appearance can be
improved.
Furthermore, by attaching the speaker cord to the speaker body, the signal wire and the fall
prevention wire can be securely attached to the speaker body.
Then, if the speaker cord is attached to the external structure by the attaching portion, it is
possible to exhibit the drop prevention function.
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Here, since the wire for preventing the fall is integrated with the wire for signal, even if the
speaker main body falls from the fixed position, the fall is more surely prevented than the
speaker cord made of only the wire for signal. can do.
In addition, since the mounting portion has a structure in which the signal line does not conduct
unless the mounting portion is mounted on an external structure, fixing of the mounting portion
is essential to make a sound from the speaker.
Therefore, the fall prevention wire can be made to function reliably.
[0012]
Hereinafter, embodiments of the present invention will be described with reference to the
drawings.
FIG. 1 is a perspective view showing a schematic configuration of a speaker according to the
present embodiment.
As shown in FIG. 1, the speaker 1 is provided with a speaker body 2 and a speaker cord 3
connected to the speaker body 2.
[0013]
On the back surface of the speaker body 2, audio terminals 21 and 22 and a fall prevention
terminal 23 are provided.
[0014]
The speaker cord 3 is provided with positive and negative signal wires 31 and 32 for supplying
an electrical signal to the speaker body 2, a fall prevention wire 33 for preventing the speaker
body 2 from falling, and a signal wire A cover member 34 covering the wires 31, 32 and the fall
prevention wire 33 collectively and the signal wires 31, 32 and the fall prevention wire 33 are
attached to a wall (external structure) of a house or the like through the cover member 34 A
mounting portion 35 is provided.
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[0015]
Hereinafter, the mounting portion 35 will be described in detail.
FIG. 2 is a side view showing a schematic configuration of the mounting portion 35. As shown in
FIG.
As shown in FIG. 2, the attachment portion 35 includes a wire rod holding portion 36 for holding
the signal wire rods 31 and 32 and the fall preventing wire 33 while the signal wire rods 31 and
32 are insulated, and the wire rod holding portion 36 A fixing portion 37 fixed to a wall of a
house or the like is provided.
[0016]
3 is a front view showing a schematic configuration of the wire rod holding portion 36, FIG. 4 is a
side sectional view, and FIG. 5 is a front view showing an internal configuration of the wire rod
holding portion 36. As shown in FIG. As shown in FIGS. 3 to 5, the wire rod holding portion 36 is
provided with a base 38 and a cover 39 that covers the front side of the base 38.
[0017]
The base 38 includes a substrate 40 to which the signal wires 31, 32 and the fall prevention wire
33 are fixed, a wall portion 41 erected from the periphery of the substrate 40, and a through
hole 42 formed in the substrate 40. It is equipped. The substrate 40 is formed of an insulating
resin or the like, and a pair of conductive portions 43 and 44 is attached to the surface thereof.
The pair of conductive parts 43 and 44 are separated and insulated from each other. Further, on
the surface of the substrate 40, the signal wire 31 for the positive electrode is wired so as not to
conduct to the conductive portions 43 and 44. On the other hand, the signal wire for negative
electrode 32 is divided, and one end 32 a is conducted to the conducting portion 43 and the
other end 32 b is conducted to the conducting portion 44. That is, in this state, the signal wire 32
for the negative electrode is in an insulated state. A metal plate 46 having a through hole 45
continuous with the through hole 42 is attached to the back surface of the substrate 40. A wire
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fixing ring 47 is superimposed on the metal plate 46, and the tip of the fall prevention wire 33 is
held between the metal plate 46 and the wire fixing ring 47. Further, as described above, since
the substrate 40 is formed of an insulating resin or the like, the signal wires 31 and 32 wired on
the surface of the substrate 40 are insulated from the wall of the house and the wire 33 for fall
prevention It will be.
[0018]
The lid 39 has an opening 48, and when attached to the wall 41 of the base 38, the opening 48
exposes the through hole 42 of the base 38 and the pair of conductive parts 43 and 44.
[0019]
As shown in FIG. 2, the fixing portion 37 includes a fixing piece 51 entering the opening 48, and
a screw 52 attached to the fixing piece 51 and screwed to a wall of a house or the like through
the through holes 42 and 45. ing.
[0020]
FIG. 6 is a perspective view showing a schematic configuration of the fixing piece 51. As shown
in FIG.
As shown in FIG. 6, the fixing piece 51 is provided with a through hole 53 through which the
screw 52 passes, and a pair of conductive layers 54 and 55 facing each other with the through
hole 53 interposed therebetween.
When the fixed piece 51 enters the opening 48 and the back surface of the fixed piece 51 comes
in contact with the front surface of the substrate 40, the conductive layers 54 and 55 are
conductive portions 43 and 44 as shown by the dotted line T in FIGS. The signal wire 32 for the
negative electrode is switched from the insulation state to the conduction state by contacting
both of them.
[0021]
Next, the operation of the present embodiment will be described. When installing the speaker 1,
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when connecting the speaker body 2 and the speaker cord 3, the user attaches the signal wires
31 and 32 of the speaker cord 3 to the audio terminals 21 and 22 of the speaker body 2 and the
amplifier And the fall prevention wire 33 is attached to the fall prevention terminal 23.
Thereafter, the user fixes the mounting portion 35 to a wall of a house or the like. At this time,
the screws 52 are tightened until the back surface of the fixing piece 51 of the mounting portion
35 contacts the front surface of the substrate 40, whereby the conductive portions 43 and 44
and the conductive layers 54 and 55 are in contact. The signal wire 32 is switched to the
conductive state. Thereby, the speaker body 2 and the amplifier can be conducted.
[0022]
As described above, according to the present embodiment, since the signal wires 31, 32 and the
fall prevention wire 33 are integrated by the cover member 34, the wiring can be simplified, and
the appearance is improved. Get better. Furthermore, by attaching the speaker cord 3 to the
speaker body 2, the signal wires 31 and 32 and the fall prevention wire 33 can be reliably
attached to the speaker body 2.
[0023]
Furthermore, when the fixing portion 37 fixes the wire holding portion 36 to the wall of a house
or the like, the insulating state of the signal wire 32 is switched to the conductive state, so the
speaker main body 2 and the amplifier should not be attached to the wall. Remains unconductive.
That is, when the speaker 1 is installed, the attachment portion 35 is inevitably attached to the
wall, so the wire 33 for fall prevention is also fixed to the wall, and the fall prevention function is
surely exerted.
[0024]
Of course, the present invention is not limited to the above embodiment, but can be appropriately
modified. For example, in the present embodiment, a wall of a house or the like is illustrated as
an external structure, but a vehicle or the like may be used. In this case, the mounting portion is
attached to a trim or the like of the vehicle. Here, when attaching to a trim or the like, as shown
in FIG. 7, the metal plate 46 a of the mounting portion 35 a is U-shaped in cross section viewed
from the lower side and the trim 70 is inserted into the open portion. It sandwiches with the
metal plate 46a. Even if the signal wire 31, 32 is insulated from the trim 70 or the fall prevention
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wire 33 by the substrate 40, even when mounted on a trim that also serves as a vehicle ground,
the signal wire 31, 32 can be used. The insulation of the In the above embodiment, the signal
wire for negative electrode 32 is divided to switch the insulation state and the conductive state.
However, the signal wire 31 for positive electrode is divided to be in the insulation state and the
conductive state. It is needless to say that the configuration may be switched.
[0025]
In the above embodiment, the fixing piece 51 switches the signal wire 32 for the negative
electrode from the insulating state to the conductive state. However, as shown in FIG. The signal
wire 32 may be configured to be switched from the insulating state to the conductive state. In
this case, when the conductive portions 43a and 43b are exposed to the outside and the screw
52 is tightened, the head 52a of the screw 52 contacts the conductive portions 43a and 43b as
shown by the dotted line portion T1. The signal wire 32 is switched from the insulating state to
the conductive state.
[0026]
It is a perspective view showing a schematic structure of a speaker concerning this embodiment.
It is a side view which shows schematic structure of the attaching part with which the speaker of
FIG. 1 is equipped. It is a front view which shows schematic structure of the wire holding ¦
maintenance part with which the attaching part of FIG. 2 is equipped. It is a sectional side view of
the wire holding part of FIG. It is a front view which shows the internal structure of the wire
holding part of FIG. It is a perspective view which shows schematic structure of the fixing piece
with which the attaching part of FIG. 2 is equipped. It is a side view which shows the modification
of the attaching part of FIG. It is a side view which shows the modification of the attaching part of
FIG. It is a perspective view which shows schematic structure of the conventional speaker.
Explanation of sign
[0027]
DESCRIPTION OF SYMBOLS 1 Speaker 2 Speaker main body 3 Cord for speaker 31 Wire material
for signal 32 Wire material for signal 33 Wire for fall prevention 34 Cover material 35 Mounting
part 36 Wire material holding part 37 Fixing part
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