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JP2007295059

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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 JP2007295059
The present invention provides a component for a speaker device, which is excellent in the
protection of a design and can improve the design. A component member for a speaker device
includes a translucent film material and a fiber material, and a design such as characters, figures,
and patterns is printed on a design surface of the translucent film material. The design surface is
bonded to one surface of the fiber material via an adhesive, and the design is translucent when
the design is viewed from the other surface of the translucent film material facing the design
surface. It is covered by film material. Therefore, even if the speaker device component is placed
under a severe environment, or even if an external force is applied to the speaker device
component, the characters printed on the design surface of the translucent film material, A
design such as a figure or a pattern is protected by a translucent film material, so that the design
can be prevented from peeling off, and the protection of the design can be enhanced. As a result,
design and design can be enhanced. [Selected figure] Figure 2
Component member for speaker device, method for manufacturing the same, and speaker device
[0001]
The present invention relates to a layered structure of a component member for a speaker
device, which is excellent in design protection and can enhance design.
[0002]
The speaker device is configured by various components for a speaker device such as a vibration
system member such as a diaphragm and a frame, and a magnetic circuit.
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In particular, a diaphragm as an example of a component member for a speaker device is a face
of the speaker device, and high designability and designability are required together with
excellent acoustic characteristics.
[0003]
In order to meet such requirements, conventionally, (1) a design such as characters, figures,
patterns, etc. is printed on the surface of the diaphragm on the sound emission side by screen
printing; (2) the diaphragm on the sound emission side (3) to give a concavo-convex shape to
form a design on the surface of the diaphragm on the sound emission side, (4) directly on the
surface of the diaphragm on the sound emission side The design has been enhanced by various
methods such as printing a design such as characters, figures, and patterns and covering the
surface with a transparent laminate film.
[0004]
In addition, as a speaker device having a structure that evokes a sense of movement of sound, for
example, a fluorescent emitter layer is formed on the surface of a diaphragm, a semi-transparent
film is laminated on the surface, and a black light is disposed around that Patent Document 1
describes a speaker device that
[0005]
Further, as a diaphragm-edge integral molding having a multilayer structure, for example, Patent
Document 2 describes a diaphragm-edge integral molding capable of obtaining a wide band, low
distortion, and high sound quality.
This diaphragm-edge integral molded product is screen-printed with a high-rigidity polymer resin
on the diaphragm portion of the fiber fabric of the base material and a flexible polymer resin on
the edge portion, and subjected to thermoforming press. It is manufactured.
[0006]
Further, for example, Patent Document 3 describes a resin film-formed diaphragm in which an
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embossed pattern is formed on the portion excluding the periphery of the voice coil attached
portion and the periphery of the outer periphery.
As a result, the rigidity can be increased to prevent the generation of abnormal noise, and it is
possible to improve the high frequency response and stabilize the amplitude.
[0007]
However, in the above-described design forming method, when the diaphragm is placed under a
severe environment, or some external force is applied to the diaphragm. When (the contact with
other members or rubbing, peeling by sticking to other adhesive substances, etc.) acts, the design
such as characters, patterns, figures, etc. printed on the design surface of the diaphragm is
peeled off, or There is a problem that the concavo-convex shape which forms a design will be
deformed. In the case of the design formation method described in (4) above, when the
diaphragm is made of a cloth material with a coarse mesh (cross material) or a material having
poor printability, the design such as characters, patterns, figures, etc. is accurate. There is a
problem that printing is difficult.
[0008]
As problems to be solved by the present invention, the above-mentioned ones can be mentioned
as an example. An object of the present invention is to provide a speaker device component and a
speaker device that are excellent in design protection and can improve design.
[0009]
The invention according to claim 1 is a component member for a speaker device, comprising a
first material having translucency and a second material, and one side of the first material is
designed And one surface of the second material is bonded to one surface of the second material
via an adhesive, and the other surface of the first material faces the one surface of the first
material. The design is characterized in that the design is covered by the first material when the
design is viewed from the aspect of the invention.
[0010]
The invention according to claim 6 is a method of manufacturing a component for a speaker
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device, comprising a plurality of regions having a light transmitting property and to be a first
element constituting a plurality of components for a speaker device. A printing step of printing a
design on one side of a first material, the one side of the first material, and a plurality of areas to
be the second element constituting the plurality of components for a speaker device And a
forming step of forming a predetermined shape by pressing the bonded material and forming the
predetermined shape. .
[0011]
In one embodiment of the present invention, the speaker device component includes a lighttransmitting first material and a second material, and one surface of the first material is designed.
And the other surface of the first material is bonded to one surface of the second material via an
adhesive and is opposed to the one surface of the first material. The design is covered by the first
material when viewed from the above.
[0012]
The above-mentioned component member for a speaker device is a diaphragm, a frame, or a
name plate (back cover of a speaker device) or the like which is required to have designability
and designability, and the first material having translucency and the second The material is
provided.
In a preferred example, the first material is preferably formed of a film-like material such as, for
example, a translucent film material having thermoplasticity or a laminate film having
transparency.
The second material is preferably formed of, for example, various fiber materials such as cloth
material (cross material), woven fabric, non-woven fabric, and paper pulp.
[0013]
Then, on one surface of the first material (hereinafter sometimes referred to as "design surface"),
a design such as characters, numbers, symbols, figures, patterns, etc. is applied (for example,
printed) And one side of the second material is bonded to one side of the second material via an
adhesive.
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Further, when the design is viewed from the other side of the first material facing the one side of
the first material, the design is covered by the first material.
[0014]
Therefore, even if the speaker device component is placed in a harsh environment, or even if
some external force is applied to the speaker device component, the characters and figures
printed on the design surface of the first material A design such as a pattern is protected by the
first material, so that the design can be prevented from peeling off, and the protection of the
design can be enhanced. As a result, the design and design of the speaker device component can
be enhanced.
[0015]
In addition, even when the first material, which is a component of the component member for a
speaker device, is formed of a material having poor adhesion to the printing ink, the design
surface on which the design is printed is the first. As it is covered by the material, the design is
not peeled off, and the design can be printed on the design surface without concern for the
adhesion to the printing ink. In addition, in the conventional design formation method, in order
to improve the adhesiveness of the design surface of the structural member for speaker devices,
and the printing ink, pretreatments, such as a primer application process and a corona treatment,
were required for the design surface. However, in this component member for a speaker device,
the design surface is protected by the first material, and there is no possibility that the design
may be peeled off, so it is not necessary to provide such a process at the time of its manufacture.
[0016]
Moreover, in the conventional design formation method, in order to protect the design printed on
the design surface, it was necessary to provide a process for clear-coating the design surface
(transparent coating material), but this speaker device In the component member, since the
design surface is protected by the first material and the design is not peeled off, it is not
necessary to provide such a process at the time of its manufacture.
[0017]
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Moreover, with this component for speaker device, even if a material having a rough surface and
difficult to print is used as a material for forming the component for speaker device, the design
may be printed on such a material side Since the printing is performed on the side of the first
material that is easy to print, the design can be printed easily.
[0018]
In one aspect of the above component member for a speaker device, the other surface of the
second material opposite to the one surface of the second material is one surface of a third
material via an adhesive. It is pasted together.
In a preferred embodiment, the third material is preferably formed of any of paper, cloth material
(cross material), resin material (for example, resin molding material), and foam material.
The second material is preferably impregnated with an impregnating material such as a phenol
resin, an epoxy resin, or a rubber represented by a latex. Thereby, the second material is blinded.
In this case, an adhesive used at the time of bonding of the second material and the third
material, and air bubbles generated at the time of the bonding pass through the mesh of the
second material and one side of the second material and the first There is a possibility that the
designability (appearance) of the design printed on the design surface may be deteriorated by
infiltrating and remaining between the design surfaces of the material. Therefore, such problems
can be prevented from occurring by impregnating the second material with the impregnating
material and sealing it as in the above-described preferred example.
[0019]
Further, in this case, even when the second material is formed using a flame retardant material
such as a cloth material made of carbon, a cloth material made of para-based wholly aromatic
polyamide fiber, etc., the second material On the other hand, as described above, by
impregnating the impregnating material such as resin or rubber, the adhesion between the
second and third materials can be improved.
[0020]
Further, in this case, since the second material is to be fixed by impregnating the second material
with an impregnating material such as resin or rubber, the fibers constituting the second material
are frayed. In the case where the second material is formed using, for example, a cloth material
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made of para-based wholly aromatic polyamide fiber or a high-strength fiber, the second material
has a predetermined shape. It is possible to improve cutting properties and punching properties
when forming into
[0021]
In another embodiment of the present invention, a speaker device provided with the abovedescribed component device for a speaker device can be configured.
Thus, a speaker device having high design protection, design and design can be obtained.
[0022]
In another embodiment of the present invention, a method of manufacturing a speaker device
component includes a plurality of first regions that are elements of the speaker device
component, and one of the light-transmitting first materials. It has a printing step of printing a
design on each of the first regions of the surface, the one surface of the first material, and a
plurality of second regions which are elements of the plurality of components for a speaker
device. A bonding step of bonding one surface of the second material through an adhesive, and a
molding step of molding each of the first region and the second region to be formed into a
predetermined shape. And.
[0023]
In the method of manufacturing a speaker device component, first, the printing step has a
plurality of first regions that are elements of the speaker device component and is one side of the
light-transmitting first material. Print designs such as letters, numbers, symbols, figures, patterns,
etc. in each of the first areas of
Next, in the bonding step, one surface of the first material and one surface of the second material
having a plurality of second regions that are elements of a plurality of speaker device
components are bonded with an adhesive. Pasting together.
Next, in the forming step, each of the bonded first and second regions is formed into a
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predetermined shape by, for example, press forming. Thereby, a plurality of speaker device
components can be obtained.
[0024]
Therefore, according to this manufacturing method, the number of steps can be reduced, as
compared with the case where the design is printed on the design surface of each of the speaker
device components after forming the plurality of speaker device components. Can be As a result,
the product cost of the speaker device component can be reduced.
[0025]
Hereinafter, preferred embodiments of the present invention will be described with reference to
the drawings.
[0026]
[Configuration of Speaker Device] FIG. 1 is a cross-sectional view of the speaker device 100
including the component for a speaker device according to the embodiment of the present
invention, cut along a plane passing through the central axis L1.
[0027]
As shown in FIG. 1, the speaker device 100 includes various components for a speaker device,
that is, a magnetic circuit 30 including a yoke 1, a magnet 2 and a plate 3, a frame 4, a voice coil
bobbin 5, a voice coil 6, and a damper 7. And a vibration system 31 including a diaphragm 8, an
edge 9 and a cap 11, and a name plate 10 for displaying product information.
In the present invention, the structure and driving method of the speaker device, and the shape
and size of the components for the speaker device are not particularly limited.
[0028]
First, the configuration of the magnetic circuit 30 will be described.
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[0029]
The magnetic circuit 30 is configured as an external magnet type magnetic circuit.
[0030]
The yoke 1 has a pole portion 1a having a substantially cylindrical shape, and a flange portion 1b
formed to extend outward from the lower end portion of the outer peripheral wall of the pole
portion 1a.
An annular protrusion 1ba is formed in the vicinity of the inner peripheral portion on the flange
1b.
[0031]
The magnet 2 has a substantially annular shape.
The magnet 2 is attached to an appropriate position on the flange portion 1 b in a state where
the vicinity of the lower end portion of the inner peripheral wall is positioned on the outer
peripheral wall of the annular protrusion 1 ba which is an element of the yoke 1.
A plate 3 having a substantially annular shape is mounted on the magnet 2. A magnetic gap 32 is
formed in the gap between the inner peripheral wall of the plate 3 and the outer peripheral wall
of the pole portion 1a.
[0032]
Next, the configuration of the vibration system 31 will be described.
[0033]
The frame 4 has a substantially cup-like and cone-like shape, and has a function of supporting
various speaker device components.
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The frame 4 has a step-like cross-sectional shape, and includes a first step 4a, a second step 4b
provided on the upper side of the first step 4a and an outer side, and the second step 4b. And a
third step 4c provided on the upper side and the outer side. The first step 4 a which is an
element of the frame 4 is mounted on the plate 3.
[0034]
The voice coil bobbin 5 has a substantially cylindrical shape. The voice coil bobbin 5 is disposed
at a position where the lower end portion thereof covers the pole portion 1 a of the yoke 1.
Therefore, the lower end portion of the inner peripheral wall of the voice coil bobbin 5 is
opposed to the upper end portion of the outer peripheral wall of the pole portion 1a while the
lower end portion of the outer peripheral wall of the voice coil bobbin 5 is the inner peripheral
wall of the plate 3 and They are respectively opposed to a part of the inner peripheral wall of the
magnet 2.
[0035]
The voice coil 6 consists of one wire and has positive and negative lead wires not shown. The
voice coil 6 is wound around the lower end portion of the outer peripheral wall of the voice coil
bobbin 5, and the outer peripheral wall of the voice coil 6 faces the inner peripheral wall of the
plate 3. In the voice coil 6, the lead wire on the positive side is an input wiring of an L (or R)
channel signal, and the lead wire on the negative side is an input wiring of a ground (GND:
ground) signal. The plus and minus lead wires are respectively connected to terminal portions
(not shown) provided at appropriate positions of the frame 4. The terminal portion is also
connected to an output wiring on the amplifier side (not shown). As a result, a signal or power for
one channel is input to the voice coil 6 from the amplifier side via the terminal portion and each
of the plus and minus lead wires.
[0036]
The damper 7 has a substantially annular shape, and includes a plurality of corrugated elastic
portions that elastically support the voice coil bobbin 5 and the like. The inner peripheral edge of
the damper 7 is attached near the upper end of the outer peripheral wall of the voice coil bobbin
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5, while the outer peripheral edge of the damper 7 is attached on the second step 4 b of the
frame 4.
[0037]
The diaphragm 8 has a function of emitting an acoustic wave according to the input signal. The
inner peripheral edge portion of the diaphragm 8 is attached to the upper end portion of the
outer peripheral wall of the voice coil bobbin 5. An edge 9 having a substantially Q-shaped crosssectional shape is attached to the outer peripheral portion of the diaphragm 8. Although the
diaphragm 8 and the edge 9 are separately formed in this example, the present invention is not
limited to this, and the diaphragm 8 and the edge 9 may be integrally formed.
[0038]
The cap 11 has a substantially hemispherical shape. The outer peripheral end portion of the cap
11 is attached to the inner peripheral portion on the diaphragm 8. Therefore, the cap 11 plays a
role of preventing moisture and foreign matter from intruding into the magnetic circuit 30 from
the sound output side.
[0039]
In the speaker device 100 having the above configuration, the signal and the power output from
the amplifier side are supplied to the voice coil 6 through the terminal portion and the positive
and negative lead wires of the voice coil 6. As a result, driving force is generated in the voice coil
6 in the magnetic gap 32, and the diaphragm 8 is vibrated in the direction of the central axis L 1
of the speaker device 100. Thus, the speaker device 100 emits a sound wave in the direction of
the arrow Y1.
[0040]
Next, a layer structure or the like of the diaphragm 8 will be described as an example of a
speaker device constituent member according to an embodiment of the present invention. In the
present invention, the shape, size, and the like of the diaphragm are not limited to those
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described below. Further, in the present invention, the layer structure described below is not
limited to only the diaphragm 8 and can be applied to all of the components for a speaker device
for which design is required. In addition to the diaphragm 8, for example, the frame 4 and the
name plate 10 for product information display may be mentioned as a component member for a
speaker device for which such design is required.
[0041]
FIG. 2A shows a plan view of the diaphragm 8 as observed in the direction opposite to the
direction of the arrow Y1 in FIG. FIG. 2 (b) shows a translucent film material (first film) which is a
component of the diaphragm 8 when the diaphragm 8 of FIG. 2 (a) is observed from the back
side to the front side of the sheet. The top view of material 53 is shown. FIG. 2C shows a fiberbased material (second material) which is a component of the diaphragm 8 when the diaphragm
8 of FIG. 2A is observed from the front side to the rear side of the sheet. 51 shows a plan view of
51. FIG. FIG. 3A is a cross-sectional view of an essential part showing the layer structure of the
diaphragm 8 corresponding to the broken line area E1 in FIG.
[0042]
The diaphragm 8 has an annular planar shape, and the translucent film material 53 and the fiberbased material 51 are bonded together via the adhesive 52 to form a multilayer structure.
[0043]
The translucent film material 53 has an annular planar shape, and a design (design) 70 such as
characters, numbers, symbols, figures, patterns, etc. is printed on one surface (design surface)
53b thereof.
In this example, a design 70 including characters, figures, and patterns is printed on the design
surface 53 b of the translucent film material 53. In FIG. 3A, the design 70 is not printed on the
other surface 53c of the translucent film material 53 facing the design surface 53b of the
translucent film material 53. Here, it is preferable that the translucent film material 53 be formed
of a translucent film material having thermoplasticity, or a laminate film having transparency.
[0044]
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The fiber-based material 51 has the same shape as the translucent film material 53. The fiberbased material 51 is preferably formed of various fiber-based materials such as cloth material
(cross material), woven fabric, non-woven fabric, paper pulp and the like.
[0045]
In the diaphragm 8 having the above components, the design surface 53b side of the lighttransmissive film material 53 on which the design 70 is printed and the one surface 51c side of
the fiber material 51 are bonded together via the adhesive 52. It is press-formed into an annular
planar shape and a cone-like cross-sectional shape. That is, the design surface 53b of the
translucent film material 53 on which the design 70 is printed is on the side 51c of the fiber
material 51 via the adhesive 52 in the direction shown by the arrow Y10 in FIG. 2 (b). A state of
being pasted and press-formed into the above shape is shown as a diaphragm 8 in FIG.
[0046]
Next, an example of a conventional design formation method and its problems will be described,
and the features of the component for a speaker device according to the embodiment of the
present invention capable of solving the problems will be described.
[0047]
Generally, a diaphragm as an example of a component member for a speaker device is a face of
the speaker device, and high designability and designability are required together with excellent
acoustic characteristics.
[0048]
In order to meet such requirements, conventionally, (1) a design such as characters, figures,
patterns, etc. is printed on the surface of the diaphragm on the sound emission side by screen
printing; (2) the diaphragm on the sound emission side (3) to give a concavo-convex shape to
form a design on the surface of the diaphragm on the sound emission side, (4) directly on the
surface of the diaphragm on the sound emission side The design has been enhanced by various
methods such as printing a design such as characters, figures, and patterns and covering the
surface with a transparent laminate film.
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[0049]
However, in such a design formation method, when the diaphragm is placed under a severe
environment, or when the diaphragm is subjected to some external force (contact or rubbing with
another member, adhesion to another adhesive, etc. When peeling is applied, there is a problem
that the design such as characters, patterns, and figures printed on the design surface of the
diaphragm is peeled or the asperity shape forming the design is deformed.
In the case of the design formation method described in (4) above, when the diaphragm is made
of a cloth material with a coarse mesh (cross material) or a material having poor printability, the
design such as characters, patterns, figures, etc. is accurate. There is a problem that printing is
difficult.
[0050]
In this respect, the diaphragm 8 as an example of the speaker device constituent member
according to the present embodiment is a translucent film material 53 having a design surface
53b on which a design 70 such as characters, figures, and patterns is printed, and its design The
design 70 is viewed from the other surface 53 c of the light-transmissive film material 53 that is
configured to have the fiber-based material 51 bonded to the surface 53 b via the adhesive 52
and that faces the design surface 53 b. Sometimes, the design 70 is covered by the translucent
film material 53.
[0051]
Therefore, as described above, even when the diaphragm 8 is placed under a severe environment
or when some external force is applied to the diaphragm 8, the printed surface 53b of the
translucent film material 53 is printed. The design 70 such as letters, figures, and patterns is
protected by the light-transmissive film material 53, so that the design 70 can be prevented from
peeling off such as character disappearance, and the protection of the design 70 and reliability
for character disappearance, etc. Can be enhanced.
As a result, the design and design of the speaker device component and the speaker device 100
can be enhanced.
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That is, in the present embodiment, a very beautiful appearance in which a design 70 such as a
character exists between the design surface 53 b of the translucent film material 53 and the fiber
material 51 can be obtained.
[0052]
In addition, even when the translucent film material 53 which is a component of the diaphragm 8
is formed of a material having poor adhesion to the printing ink, the design surface 53b on which
the design 70 is printed is transparent. Since it is covered by the light-sensitive film material 53,
the design 70 is not peeled off, and the design 70 can be printed on the design surface 53b
without concern for the adhesion with the printing ink.
In the conventional design formation method, in order to improve the adhesion between the
design surface of the diaphragm and the printing ink, it is necessary to perform pretreatment
such as primer coating treatment or corona treatment on the design surface. In the embodiment,
the design surface 53b is protected by the light-transmissive film material 53, and the design 70
is not peeled off. Therefore, it is not necessary to provide such a process at the time of
manufacturing.
[0053]
Moreover, in the conventional design formation method, in order to protect the design printed on
the design surface, it was necessary to provide a process for clear-coating the design surface
(transparent coating material). Then, since the design surface 53b is protected by the translucent
film material 53 and the design 70 is not to be peeled off, it is not necessary to provide such a
process at the time of its manufacture.
[0054]
Further, in the present embodiment, even when a material having a rough surface and difficult to
print is used as a material for forming the diaphragm, the design 70 is not printed on such a
material side, but is easy to print. Since printing is performed on the translucent film material 53
side, printing of the design 70 can be easily performed.
[0055]
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Further, in the process of manufacturing the diaphragm 8 having such a layer structure, first, the
design 70 is collectively provided in a region where the design surfaces 53b of the plurality of
diaphragms 8 of the translucent film material having a large area are to be formed. Then, the
surface of the light-transmissive film material on the side of the design surface 53b on which the
design 70 is printed and the one surface 51c of the fiber material are bonded with an adhesive
52, and then, It is possible to obtain a plurality of diaphragms 8 by press-molding the material to
be bonded to the shape of the diaphragm 8.
Thereby, the number of processes can be reduced as compared with the case where the design
70 is printed on the design surface 53b of each diaphragm after forming a plurality of
diaphragms.
As a result, the product cost of the diaphragm 8 can be reduced.
[0056]
[Modifications] The layer structure of the component for a speaker device according to the
present invention is not limited to that described above. That is, in the present invention, as
shown in FIG. 3B, the component member for a speaker device has the above-described layer
structure as a basic configuration and the fiber-based material 51 located on the opposite side to
the translucent film material 53. Another material (third material) 54 may be bonded to the other
surface 51 b via an adhesive 52. Here, as the other material 54, for example, paper, cloth
material (cross material), resin molding material, foam material and the like can be mentioned.
[0057]
In a preferred example, it is preferable that the fiber-based material 51 be impregnated with an
impregnating material such as a phenol resin, an epoxy resin, or a rubber represented by a latex,
and be sealed.
[0058]
This is due to the following reason.
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That is, the other surface 54b of the fiber-based material 51 located opposite to the lighttransmissive film material 53 is bonded to the other material 54 through the adhesive 52 while
using the above-described layer structure as a basic configuration. In the case of the modified
example, as shown in FIG. 3 (b), the adhesive 52 used at the time of the bonding and the air
bubbles generated at the time of the bonding pass through the mesh of the fiber material 52 as
shown in the arrow Y2 direction. It infiltrates and remains between the one surface 51c of the
fiber material 52 and the design surface 53b of the translucent film material 53, and the design
(appearance) of the design 70 printed on the design surface 53b is deteriorated. There is a risk of
Therefore, such problems occur when the fiber-based material 51 is impregnated with a material
such as a phenol resin, an epoxy resin, or a rubber typified by a latex and sealed as in the
preferred example described above. Can be prevented.
[0059]
Further, in the present invention, even when the fiber material 51 is formed using a flame
retardant material such as a cloth material made of carbon, a cloth material made of para-based
wholly aromatic polyamide fiber, etc. By impregnating the material 51 with an impregnating
material such as a resin or rubber as described above, the adhesion between the fiber material
51 and the other material 54 due to the adhesive 52 can be improved.
[0060]
Further, in the present invention, the fiber-based material 51 is impregnated by impregnating the
fiber-based material 51 with an impregnating material such as resin or rubber, so that the fibers
constituting the fiber-based material 51 When it is possible to prevent fraying and to form the
fiber-based material 51 by using a cloth material made of para-based wholly aromatic polyamide
fiber, a high-strength fiber, etc. It is possible to improve cutting performance and punching
performance when forming into a shape.
[0061]
[Method of Manufacturing Component for Speaker Device] Next, a method of manufacturing the
diaphragm 8 as an example of the above-described component for speaker device will be
described with reference to FIGS. 4 to 7.
In the present invention, the manufacturing method described below is not limited to the
diaphragm 8 and applied, and can be applied to all the components for a speaker device for
which design is required.
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[0062]
FIG. 4 shows a flowchart of a method of manufacturing the diaphragm 8 as an example of a
speaker device component.
5 to 7 show process drawings corresponding to the manufacturing method of FIG.
[0063]
First, as shown in FIG. 5, a translucent film material (first material) 80 having a large area is
prepared, and one side (design surface) of the translucent film material 80 on which the design
70 is printed ) A plurality of designs 70 such as characters, figures, patterns, etc. are printed
collectively at a plurality of areas 8x where a plurality of diaphragms are to be formed and where
the designs 70 are to be printed (printing step S1). ). Here, it is preferable that the translucent
film material 80 be formed of a translucent film material having thermoplasticity, or a laminate
film having transparency.
[0064]
Next, a fiber-based material (second material) having a plurality of regions (second regions)
overlapping a plurality of regions (first regions) 8 x in which a plurality of diaphragms are to be
formed, and having a large area ) 82 is prepared, and as shown in FIG. 6, the design surface 80a
on which the design 70 of the light-transmissive film material 80 is printed and the fiber-based
material 82 are bonded together via the adhesive 81 (bonding process S2 ). In addition, in FIG. 6,
the other surface 80b side of the translucent film material 80 opposite to the design surface 80a
on which the design 70 is printed is located on the front side of the drawing. Here, it is
preferable that the fiber-based material 82 be formed of various fiber-based materials such as
cloth material (cross material), woven fabric, non-woven fabric, paper pulp and the like.
[0065]
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Next, another bonding step S3 is selectively performed as needed. That is, in this process,
although illustration is omitted, another material (third material) having a large area is prepared,
and the other surface side of the fiber material 82 facing the translucent film material 80,
Another material (third material) is bonded via an adhesive 81 (another bonding step S3). Here,
as another material, for example, paper, cloth material (cross material), resin molding material,
foam material and the like can be mentioned. Moreover, when performing other bonding process
S3, the said fiber type material 82 is impregnated with impregnating materials, such as rubber
represented by phenol resin, an epoxy resin, or latex, and the said fiber type material 82 is It is
preferable to fasten. Thereby, the effect of the above-mentioned modification can be acquired.
[0066]
Next, as shown in FIG. 7, the plurality of first and second regions to be formed with a plurality of
diaphragms to be formed by the above bonding step S2 and other bonding step S3 are
substantially cup-shaped and It press-molds so that it may become a cone shape, and the
diaphragm 70 which the design 70 was printed, and which concerns on the some diaphragm 8 or
a modification is obtained (forming process S4).
[0067]
Through the above steps, the diaphragm 8 according to the above-described embodiment or the
diaphragm according to the modification is manufactured.
By adopting such a manufacturing method, it is possible to reduce the number of processes
compared to the case where a design is printed on the design surface of each diaphragm after
forming a plurality of diaphragms thereafter. . As a result, the product cost of the diaphragm can
be reduced.
[0068]
Sectional drawing which shows the structure of the speaker apparatus which has the structural
member for speaker apparatuses which concerns on the Example of this invention. The various
top views which show the structure of the diaphragm as an example of the structural member for
speaker apparatuses which concerns on the Example of this invention. The principal part
sectional view showing the layer structure of the diaphragm concerning this example or
modification. The flowchart of the manufacturing method of the diaphragm as an example of the
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component member for speaker apparatuses which concerns on the Example of this invention.
FIG. 5 is a process diagram showing a manufacturing process of a diaphragm according to an
embodiment of the present invention. FIG. 5 is a process diagram showing a manufacturing
process of a diaphragm according to an embodiment of the present invention. FIG. 5 is a process
diagram showing a manufacturing process of a diaphragm according to an embodiment of the
present invention.
Explanation of sign
[0069]
4 Frame 8 Diaphragm 10 Name plate for product information display 30 Magnetic circuit 31
Vibration system 51, 82 Fiber material 52, 81 Adhesive 53, 80 Translucent film material 53b,
80a Design surface 70 Design 100 Speaker device
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