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JP2005252424

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JP2005252424
PROBLEM TO BE SOLVED: To further improve visual effects by effectively illuminating the entire
front part of a diaphragm in a speaker which lights up or blinks by means such as a change in
volume and makes light emission visible from the front of the diaphragm. A speaker diaphragm
that can be used as a speaker and a light diffusion type speaker using the diaphragm. SOLUTION:
A hollow minute pyramid is continuously connected to the surface of a diaphragm main body 2
formed of a light transmitting material to form a light diffusion portion 3, and the light diffusion
portion 3 is a bottom of each pyramid The diaphragm 2 is formed concentrically or in a grid
shape so as to open on the diaphragm main body 2, and light emitted from a light source
provided on the back surface of the diaphragm 2 is diffused by the light diffusion portion 3. ,
Make the whole surface of the diaphragm 2 glow. [Selected figure] Figure 1
Speaker diaphragm and light diffusion type speaker using the diaphragm
[0001]
The present invention relates to a speaker diaphragm that can visually stimulate a listener by
attaching it to a game machine or the like, and a light diffusion type speaker using the
diaphragm.
[0002]
Mounting a light emitter on a speaker to monitor an input to the speaker or to enhance the
appearance of the speaker and stimulate visual perception is disclosed, for example, in Japanese
Patent Application Laid-Open Nos. 2000-261874 and 2001-95074. No. 2001-197579, etc. are
proposed.
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[0003]
In the aforementioned publication, in JP-A-2000-261874, a light emitting diode is provided on
the top surface of the center pole of the yoke, and in JP-A-2001-95074, a light source is provided
at the center of the base provided on the upper end of the voice coil. Further, the publication No.
2001-197579 discloses that a light emitting diode is disposed at the center of a center pole of a
yoke.
JP-A-2000-261874 (claims, FIG. 1) JP-A-2001-95074 (claims, FIG. 1) JP-A-2001-197579 (claims,
FIG. 1)
[0004]
In each of the speakers described in the above-mentioned publications, the light emitted from the
light source is also referred to as a dust cap (also referred to as a center cap) attached to the
center of the diaphragm.
In Patent Document 1, a through hole is disposed at a required portion of the dust cap, and light
emission is visually recognized from the front side through the through hole, or dust A lens is
disposed at a required portion of the cap, and light is recognized by a line from the front side
using an afterimage phenomenon, and in Patent Document 2 or Patent Document 3, the material
of the center cap is transparent or milky white etc. A means for diffusing the light from the light
source is adopted by applying a light diffusion process such as a satin finish or a concavo-convex
process to the inner surface of the synthetic resin.
[0005]
However, it is extremely difficult to diffuse light to the whole diaphragm by any means, and in
order to irradiate light to the whole diaphragm, an effective means other than increasing the
number of light sources or enlarging the light source itself is However, as the number of light
sources is increased or increased, the amount of heat generation is also increased, so a means for
heat dissipation is required. There is also proposed a means of diffusing the light from the light
source by making the center cap made of a transparent or milky white synthetic resin such as
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2
polypropylene, and subjecting the inner surface to light diffusion processing such as texture
processing or unevenness processing. The conventional means is not practical considering the
cost-effectiveness, because it increases the production process and increases the product cost.
[0006]
In view of such a current situation, the present invention provides a further effective visual effect
by effectively illuminating the entire front surface portion of the diaphragm in a speaker that
lights up or blinks due to a change in volume and causes light emission to be visible from the
front surface of the diaphragm. It is an object of the present invention to provide a speaker
diaphragm that can be improved and a light diffusion type speaker using this diaphragm.
[0007]
In order to achieve the above object, the invention according to claim 1 of the present invention
is characterized in that a diaphragm main body is formed of a light transmitting material, and a
light source provided on the rear surface of the diaphragm on the diaphragm main body. The
speaker diaphragm is characterized in that a light diffusion portion for diffusing light emitted
from the light source is formed in an annular shape, a lattice shape, or a radial shape.
[0008]
Also, according to the invention described in claim 2 of this invention, in the diaphragm for a
speaker according to claim 1, the light diffusion portion is one in which hollow minute pyramids
are continuously connected, and the bottom portion is the above It is characterized in that it is
opened on the main body of the diaphragm.
[0009]
The invention according to claim 3 of this invention is the diaphragm for a speaker according to
claim 1, wherein the light diffusing portion is formed by connecting a plurality of hollow minute
pyramids continuously and annularly, each annular ring A body is disposed concentrically on the
diaphragm main body, and a bottom portion thereof is opened on the diaphragm main body.
[0010]
Also, the invention according to claim 4 of this invention is the diaphragm for a speaker
according to claim 1, wherein the light diffusing portion is formed by continuously connecting
hollow minute pyramids, and the diaphragm main body It is characterized in that it is arranged in
a grid shape, and its bottom is opened on the main body of the diaphragm.
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[0011]
Also, in the invention according to claim 5 of this invention, in the speaker diaphragm according
to any one of claims 1 to 4, the light diffusion portion is a unit in which hollow minute pyramids
are continuously connected. The bottom of the diaphragm is opened on the main body of the
diaphragm, and the top is in the main body of the diaphragm.
[0012]
The invention according to claim 6 of this invention is the diaphragm for a speaker according to
claim 1, wherein the light diffusion part is a groove having a V-shaped cross section, and the top
part thereof is mainly the diaphragm. It is characterized in that it is located inside and an opening
is opened on the main body of the diaphragm.
[0013]
The invention according to claim 7 of this invention is the speaker diaphragm according to claim
1 or 6, wherein the top of the light diffusion portion is located in the main body of the
diaphragm, and the opening is the vibration. It is characterized in that a groove having a Vshaped cross section, which opens on the main body of the plate, is formed radially around the
neck portion of the diaphragm.
[0014]
The invention according to claim 8 of the present invention is the speaker diaphragm according
to any one of claims 1 to 7, wherein the diaphragm main body is formed integrally with an edge
portion, The edge portion is characterized in that the entire surface is treated with a matte finish.
[0015]
The invention according to claim 9 of the present invention is the speaker diaphragm according
to any one of claims 1 to 7, wherein the diaphragm main body is formed integrally with an edge
portion, Also in the edge portion, a light diffusion portion consisting of hollow minute pyramids
connected continuously is provided so that the bottom portion is opened on the edge portion and
the top portion is located in the edge portion. It is a thing.
[0016]
The invention according to claim 10 of the present invention is the speaker diaphragm according
to any one of claims 1 to 7, wherein the edge portion is formed separately from the diaphragm
and is continuous. A light diffusing portion comprising a hollow micro pyramid which is
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connected in a row is characterized in that the bottom is opened on the edge and the top is in the
edge.
[0017]
The invention according to claim 11 of the present invention is a speaker capable of lighting or
blinking a light source disposed on the back surface of the diaphragm main body, and allowing
the light emission to be viewed from the front surface of the diaphragm main body, The
diaphragm main body is formed of a light transmitting material, and a light diffusion portion for
diffusing light emitted from the light source provided on the back surface of the diaphragm main
body is formed in an annular shape, a lattice shape or a radial shape. It is a light diffusion type
speaker.
[0018]
The invention according to claim 12 of the present invention is the light diffusion type speaker
according to claim 11, characterized in that the light source is a light emitting diode.
[0019]
The invention according to claim 13 of the present invention is the light diffusion type speaker
according to claim 11, wherein the light diffusion portion is formed by connecting a plurality of
hollow minute pyramids continuously and annularly. An annular body is disposed concentrically
on the diaphragm main body, and a bottom portion of the annular body is opened on the
diaphragm main body.
[0020]
The invention according to claim 14 of the present invention is the light diffusion type speaker
according to claim 11, wherein the light diffusion portion is formed by continuously connecting
hollow minute pyramids, and the diaphragm It is characterized in that it is disposed in a grid
form in the main, and its bottom is opened on the main body of the diaphragm.
[0021]
The invention according to claim 15 of the present invention is the light diffusion type speaker
according to claim 11 or 14, wherein the diffusion part is a hollow minute pyramid continuously
connected, and the bottom part is It is characterized in that it is opened on the diaphragm main
body, and the top is located in the diaphragm main body.
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[0022]
The invention according to claim 16 of this invention is the light diffusion type speaker
according to claim 11, wherein the top of the light diffusion portion is located in the main body
of the diaphragm, and the opening is the diaphragm It is characterized in that a groove having a
V-shaped cross section which opens on the main body is formed radially about the neck portion
of the diaphragm.
[0023]
The invention according to claim 17 of the present invention is the light diffusion type speaker
according to claims 11 to 16, wherein the diaphragm main body is one in which an edge portion
is integrally formed, and the edge portion Also, the light diffusing portion in which hollow minute
pyramids are continuously connected is characterized in that the bottom portion is opened on
the edge portion and the top portion is located in the edge portion. .
[0024]
The invention according to claim 18 of the present invention is the light diffusion type speaker
according to claims 11 to 16, wherein the diaphragm main body has a dust cap which covers the
opening of the bobbin at the center of the upper surface. Also in this dust cap, a light diffusion
portion in which hollow minute pyramids are continuously connected is formed such that the
bottom of each pyramid opens on the dust cap and the top is located in the dust cap. It is
characterized by
[0025]
In the speaker diaphragm of the present invention, the light diffusion portion for diffusing light
emitted from the light source provided on the back surface of the diaphragm is formed annularly
or in a lattice or radially on the diaphragm mainly made of the light transmitting material. The
light emitted from the light source can surely diffuse the light emitted from the light source by
the light diffusing portion provided mainly on the diaphragm, and can illuminate the entire
surface of the diaphragm, and also has a specific shape. Since the light diffusion portion is
formed almost entirely, the light source disposed on the back surface of the diaphragm can not
be viewed directly from the outside, so that the design can be greatly improved.
[0026]
In particular, in the present invention, when the light diffusion portion is continuously connected
with hollow minute pyramids and arranged in an annular or lattice shape on the main body of
the diaphragm, the bottom of each pyramid is mainly on the diaphragm Since it is opened, the
light emitted from the light source on the back surface of the diaphragm is sufficiently diffused
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when transmitted from each surface constituting the pyramid to the outside of the diaphragm, so
that the entire surface of the diaphragm is illuminated even with a small number of light sources.
Can.
[0027]
Further, in the speaker according to the present invention, a light source which is lit or blinks
according to a change in volume is disposed on the back surface of the diaphragm made of a
transparent plastic material, and the light diffusion portion for diffusing light emitted from the
light source Because the plate is mainly formed, the light source disposed on the back surface of
the diaphragm can not be viewed directly from the outside, so the designability is greatly
improved, and the light diffusion portion provided on the diaphragm emits light from the light
source Can be reliably diffused to illuminate the entire surface of the diaphragm.
[0028]
And in this invention, since the said light-diffusion part is made into what a hollow micro
pyramid connected continuously, or V-shaped groove ¦ channel, and the bottom part is made to
open on the said diaphragm, it is provided. The light emitted from the light source on the back
surface of the diaphragm is sufficiently diffused when being transmitted from the surfaces
constituting the pyramid to the outside of the diaphragm, so that the entire surface of the
diaphragm can be illuminated even with a small number of light sources.
[0029]
Also, the edge portion provided on the outer peripheral edge of the diaphragm may be integral
with or separate from the diaphragm, but like the diaphragm, a light diffusing portion in which
hollow minute pyramids are annularly connected Can diffuse light from the speaker in a wider
range.
[0030]
Hereinafter, an embodiment according to the present invention will be specifically described
based on the attached drawings as a speaker diaphragm attached to peripheral portions of
various game devices installed in a game center or the like.
[0031]
1 is a schematic explanatory view showing an example of a speaker diaphragm according to the
present invention, FIG. 2 is an enlarged perspective view of the main part of the speaker
diaphragm shown in FIG. 1, FIG. 3 is an enlarged sectional view thereof, and FIG. FIG. 5 is a
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perspective view showing an example of an emergency broadcast speaker, FIG. 6 is a schematic
explanatory view showing another example of a speaker diaphragm according to the present
invention, and FIG. It is the perspective view which notched one part of the principal part of the
diaphragm for speakers shown.
[0032]
In FIG. 1, the speaker diaphragm 1 of the present invention is a diaphragm main body 2 formed
in a cone shape and made of a plastic material having light permeability, and the light diffusion
portion 3 is integrally formed. An edge portion 4 is integrally attached to an outer peripheral
edge of the main body 2 and a neck portion 5 contacting the bobbin is integrally attached to an
inner peripheral edge.
[0033]
The light diffusion portion 3 is formed by continuously connecting hollow minute rectangular
pyramids P in a ring shape to form an annular body C, and arranging the annular body C
concentrically on the surface of the diaphragm main body 2 Bottom portion B of each pyramid P
is opened to the surface of the diaphragm main body 2 and its top T is formed to be positioned
inside the diaphragm main body 2 and the size of the pyramid P is The length of the bottom
portion B is as small as about 0.1 to 2.0 mm and the height is about 0.1 to 2.0 mm.
Further, the thickness of the main body of the diaphragm is about 0.2 to 2.5 mm.
[0034]
In addition, although the hollow minute pyramid which comprises this light-diffusion part 3 is
made into the square (square pyramid) in the said example, although the light-diffusion effect is
recognized even if it is a triangular pyramid, From the viewpoint, a square pyramid is preferable.
[0035]
The light diffusion portion 3 formed by continuously connecting hollow minute pyramids may be
disposed concentrically with the diaphragm main body 2 as shown in FIG. However, there is no
significant difference in the effect.
[0036]
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A light source consisting of a light emitting diode (LED) or the like is disposed below the speaker
diaphragm 1 having such a configuration, and the light collides with the top of each pyramid P
when the back surface of the light transmitting diaphragm main body 2 is irradiated. At the same
time, a part of them also collides with the side surface S of each pyramid P to diffuse light in a
wider range, and each pyramid P is connected in a ring to form an annular body C. Thereby, the
emitted light is significantly diffused in the annular direction.
[0037]
Incidentally, even if the edge portion 4 attached to the outer peripheral portion of the diaphragm
main body 2 is integrally molded with the diaphragm main body 2, the one separately
manufactured is integrally affixed with an adhesive or the like. It may be worn, but in order to
enlarge the light emitting surface of the speaker, at least the edge portion 4 is made
semitransparent, and the inner surface thereof is subjected to a matte finish treatment, or to be
subjected to a micro unevenness processing (emboss processing) As in the case of the diaphragm
main body 2, it is preferable that hollow minute rectangular pyramids be continuously connected
in a ring shape to form an annular body, and this annular body be disposed concentrically on the
surface of the edge portion 4. More preferable.
[0038]
FIG. 4 shows a speaker 10 attached to the periphery of a game apparatus using the speaker
diaphragm 1 of the present invention, comprising a yoke 11 having a center pole and a
permanent mounted concentrically on the upper surface of the yoke 11. A magnetic circuit
comprising a ring-shaped magnet 12 made of a magnet, a ring-shaped plate 13 mounted on the
magnet 12, a frame 14 fixed to the upper surface of the plate 13, and a magnetic gap of the
magnetic circuit A voice coil 16 held vertically via a voice coil bobbin 15, a damper 17 for
holding the voice coil 16 vertically, and the diaphragm 1. The neck portion 5 of the diaphragm 1
is a bobbin The outer peripheral portion of the edge portion 4 is fixed to the outer peripheral
portion of the frame 14 at the upper end outer peripheral portion of the frame 15 respectively.
In the figure, 18 is a dust cap.
[0039]
In the speaker 10, the light source 19 for irradiating the diaphragm 1 from the back is fixed to
the inner peripheral portion of the frame 14 as shown in the figure, and the type is not
particularly limited. It is desirable to use, and there is no particular limitation on the number to
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be used, but red, blue and green, which are the three primary colors of light, may be used as one
set, or one which emits red, blue and green may be used. preferable.
[0040]
Also, the power source is interlocked with, for example, the input signal of the speaker, and if the
input signal is large, that is, if the volume is high, the emission intensity is strong, and if the input
signal is small, ie, if the volume is small By controlling so as not to turn on in the case of an input
signal of a certain level or less, the light intensity can be made strong and weak, and blinking can
be possible, but there is a special limitation on the input means. Absent.
[0041]
At that time, the light source 19 is disposed also on the back surface of the dust cap 18, and the
dust cap 18 is provided with a light diffusion portion similar to the light diffusion portion formed
on the diaphragm main body 2 or semitransparent By using the textured material, the whole
surface of the diaphragm 1 is strongly or weakly illuminated and its brightness is correlated with
the volume, and the amusing effect can be further enhanced.
[0042]
By incorporating the speaker 10 having such a configuration into the emergency broadcast
speaker 20 as shown in FIG. 5, the diaphragm 1 is illuminated by the light source together with
the sound flowing from the speaker 20 in an emergency and blinks or emits light over the entire
surface. Sounds and lights can notify an emergency to people with hearing or blindness.
[0043]
At that time, the speaker 20 can transmit information of both the sound-ear and the light-eye to
the handicapped person by providing the electric light display unit 21 on the front surface.
[0044]
Further, as apparent from FIG. 7, the speaker diaphragm 21 shown in FIG. 6 has a cross section
in which the top portion T is located in the diaphragm main body 22 and the opening O opens on
the diaphragm main body 22. The V-shaped grooves 23 are formed radially from the center of
the neck portion 5 of the diaphragm main body 22 as a light diffusion portion 24. However,
another V may be formed with respect to the grooves 23 formed radially. It is also possible to
form the V-shaped grooves concentrically.
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[0045]
It is a schematic explanatory drawing which shows an example of the speaker diaphragm
concerning this invention.
It is an enlarged perspective view of the principal part of the diaphragm for speakers shown in
FIG.
It is the same expanded sectional view.
It is a longitudinal cross-sectional view of the speaker concerning this invention.
It is a perspective view which shows the example of the speaker for emergency broadcasts.
It is a schematic explanatory drawing which shows the other example of the speaker diaphragm
concerning this invention.
It is the perspective view which notched some principal parts of the diaphragm for speakers
shown in FIG.
Explanation of sign
[0046]
Reference Signs List 1 diaphragm for speaker 2 diaphragm main body 3 light diffusion portion 4
edge portion 5 neck portion P pyramid B base of pyramid T pyramid C top ring C pyramid ring
10 speaker 19 light source
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