close

Вход

Забыли?

вход по аккаунту

?

JP2010263281

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
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 JP2010263281
The present invention relates to a speaker diaphragm used for various acoustic devices and a
speaker using the same, which prevents peeling of a cushion and falling and peeling of a gasket.
A gasket and an edge are integrally formed with a diaphragm body, and the width of the gasket is
increased to form an inclination of 80 degrees or less on the side surface, thereby improving the
strength against the force applied to the gasket in the horizontal direction. Can eliminate the
inconvenience of falling or peeling off. [Selected figure] Figure 1
Speaker diaphragm and speaker using the same
[0001]
The present invention relates to a speaker diaphragm used for various acoustic devices.
[0002]
Heretofore, this type of speaker diaphragm has a configuration as shown in FIG. 6 and FIG.
[0003]
6 and 7 are cross-sectional views of a conventional diaphragm.
[0004]
In FIG. 6, reference numeral 11 denotes a papermaking diaphragm main body made of softwood
pulp or the like, which is constructed by bonding the outer peripheral portion of the diaphragm
main body 11 to an edge 12 made of cloth, urethane foam or the like. A laminated paper gasket
10-05-2019
1
13 and a cushion 14 for maintaining the airtightness of the front and the back of the diaphragm
are provided on the gasket 13 respectively.
[0005]
Further, FIG. 7 shows a speaker diaphragm in which an edge is insert-molded in recent years to
improve sound quality and assembly accuracy, and the outer peripheral portion of the diaphragm
main body 11 is integrally molded of rubber to form an edge 15. A laminated paper gasket 13 is
provided on the outer peripheral flat portion, and a cushion 14 is provided on the gasket 13 to
keep the front and back of the diaphragm airtight.
[0006]
As prior art document information related to the invention of this application, for example,
Patent Document 1 and Patent Document 2 are known.
[0007]
Patent No. 3562113 gazette Patent No. 3991919 gazette
[0008]
However, in the above-described conventional configuration, for example, when a rectangular
shape having a large aspect ratio of a speaker aperture used for a large screen television or the
like is desired, assembly tolerance is large because the diaphragm has at least two bonding
portions. As a result, the width of the gasket 13 and the cushion 14 can not be secured large, and
the gasket 13 peels or falls mainly at the time of transportation or the like, and the cushion 14
peels.
[0009]
The present invention solves the above-mentioned conventional problems, and the elasticity of
the gasket can maintain the airtightness of the front and the back of the diaphragm without
laminating the cushion, thereby reducing the assembly process of the diaphragm and reducing
the assembly tolerance. It is an object of the present invention to provide a speaker diaphragm in
which the strength against the force applied to the gasket in the horizontal direction is improved,
and the gasket does not fall or peel off.
[0010]
In order to achieve the above object, the present invention has the following configuration.
10-05-2019
2
[0011]
The present invention is a speaker diaphragm having an integrally molded edge made of a
flexible polymer material and a gasket on the outer peripheral portion of the diaphragm main
body, and the speaker vibration having an inclination of 80 degrees or less on the inner side of
the gasket. It is a plate.
[0012]
With this configuration, it is possible to maintain the airtightness of the front and back of the
diaphragm by the elasticity of the gasket without pasting the cushion together, and by integrally
forming the gasket and the edge with the diaphragm body, the diaphragm assembly The
tolerance can be reduced, and further, by increasing the width of the gasket and having an
inclination of 80 degrees or less on the inner side surface of the gasket, the strength against the
force applied horizontally to the gasket can be improved. It is possible to eliminate the
inconvenience of falling or peeling off.
[0013]
In the speaker diaphragm of the present invention, since the gasket is made of a flexible polymer
material, it is possible to keep the front and the back of the diaphragm airtight by the elasticity of
the gasket without bonding the cushion.
[0014]
In addition, by integrally forming the gasket and the edge with the diaphragm body, it is possible
to reduce the assembly process of the diaphragm and reduce the assembly tolerance.
[0015]
As a result, the width of the gasket can be increased, and an inclination of 80 degrees or less can
be formed on the inner side surface, so the strength against the force applied to the gasket in the
horizontal direction is improved, and the gasket is prevented from falling or peeling off. Play.
[0016]
Sectional view of diaphragm for speaker according to the present invention Sectional view of
diaphragm for speaker and mold according to the first embodiment of the present invention
Sectional view showing an example of another diaphragm for speaker and mold according to the
embodiment of the present invention Sectional view of speaker diaphragm and mold according to
10-05-2019
3
Embodiment 2 Sectional view of speaker according to Embodiment 3 of the present invention
Sectional view of conventional speaker diaphragm Cross section of another embodiment of
conventional speaker diaphragm Figure
[0017]
Hereinafter, embodiments of the present invention will be described using the drawings.
[0018]
First Embodiment The first to fourth aspects of the present invention will be particularly
described with reference to the first embodiment.
[0019]
1 is a cross-sectional view of the speaker diaphragm of the present invention, FIG. 2 is a crosssectional view of the speaker diaphragm and the mold according to the first embodiment of the
present invention, and FIG. 3 is another speaker for the same embodiment. It is sectional drawing
which shows the example of a diaphragm and a metal mold | die.
[0020]
In FIGS. 1 and 2, reference numeral 1 denotes a diaphragm main body, representatively a
papermaking diaphragm made of softwood pulp and a resin diaphragm made by injection
molding.
[0021]
The diaphragm main body 1 is positioned by a mold 5 having a positioning structure, and is held
by the mold 5 and one of the molds 6.
A gasket having an edge 2 and a slope 8 on the side in the space between the molds 5 and 6
when pressed by the molds 5 and 6 by disposing a flexible polymer material on the outer
periphery of the diaphragm body in advance 3 is integrally molded.
[0022]
Here, as the polymer material, a rubber-based material is representatively used, and a flexible
10-05-2019
4
synthetic resin-based material, a synthetic fiber-based material, and a cellulose-based material
are used, and as materials frequently used, SBR, NBR, foam rubber, elastomer Etc., and is selected
in consideration of the flexibility, airtightness retention, sound quality characteristics, etc. in
accordance with the respective usage requirements.
[0023]
In the configuration as described above, the strength against the force applied to the gasket in
the horizontal direction is improved, and the effect that the gasket does not fall or peel off is
obtained.
[0024]
Further, by integrally forming the diaphragm main body 1, the edge 2, and the gasket 3,
occurrence of abnormal noise such as flicker noise due to adhesion deviation or adhesion failure
of each component which has been generated conventionally is eliminated, and the defect rate is
reduced. be able to.
[0025]
Further, when the diaphragm main body 1 is made of a paper making diaphragm, fine
adjustment of the sound quality, which is an effect as a paper making diaphragm, becomes
possible. On the other hand, when made as a resin diaphragm, it is an effect as a resin
diaphragm. The effects such as improvement of moisture resistance and water resistance and
improvement of productivity can be obtained.
[0026]
Furthermore, by using a material made of bamboo for the papermaking diaphragm and the resin
diaphragm, the strength of the diaphragm can be improved due to its physical properties, and
good sound quality, quality and reliability can be improved. In addition, good environmental
response can be realized.
[0027]
Therefore, a great synergetic effect can be exhibited with sound quality improvement, quality and
reliability improvement, productivity improvement, and environmental response improvement.
[0028]
In this embodiment, a circular or oval hole for coupling with the voice coil is provided at the
10-05-2019
5
central portion of the diaphragm main body, but as another example, the hole is provided as
shown in FIG. The same effect may be obtained by forming the speaker diaphragm 1 as a passive
radiator.
[0029]
Second Embodiment The invention according to the fifth aspect of the present invention will be
described below with reference to a second embodiment.
[0030]
FIG. 4 is a cross-sectional view of a speaker diaphragm and a mold according to a second
embodiment of the present invention.
In addition, about what has the structure similar to the structure of Embodiment 1, the same
code | symbol is attached | subjected and the description is abbreviate | omitted.
[0031]
In FIG. 4, as a difference from Embodiment 1, a gate 7 for injecting a flexible polymer material is
provided outside the edge outer peripheral flat portion or the outer peripheral portion of the
gasket.
[0032]
According to this configuration, the flexible polymer material is injected from the gate 7 into the
space between the molds 5 and 6, and the gasket 3 having the edge 2 and the slope 8 in the side
face in the space between the molds 5 and 6 It is integrally molded.
[0033]
In the configuration as described above, the strength against the force applied to the gasket in
the horizontal direction is improved, and the effect that the gasket does not fall or peel off is
obtained.
[0034]
Third Embodiment The third embodiment of the present invention will be described below in
10-05-2019
6
particular for the sixth aspect of the present invention.
[0035]
FIG. 5 is a cross-sectional view of the speaker in the third embodiment of the present invention.
[0036]
As shown in FIG. 5, the magnetized magnet 21 is sandwiched between the upper plate 22 and the
yoke 23 to form an internal magnetic circuit 24.
[0037]
The frame 26 is coupled to the yoke 23 of the magnetic circuit 24.
The outer periphery of the diaphragm 27 according to any one of claims 1 to 5 is adhered to the
peripheral portion of the frame 26.
[0038]
Then, one end of the voice coil 28 is coupled to the central portion of the diaphragm 27, and the
other end is coupled to be fitted into the magnetic gap 25 of the magnetic circuit 24.
[0039]
Although the above has described the speaker having the internal magnet type magnetic circuit
24, the present invention is not limited to this, and may be applied to a speaker having the
external magnet type magnetic circuit.
[0040]
With this configuration, as described in the first embodiment, the gasket does not fall or peel off,
and generation of abnormal noise such as flicker noise due to adhesion deviation of each part or
adhesion failure is also eliminated, thereby reducing the defect rate. , The productivity can be
improved, and the speaker can be excellent in terms of environment and cost.
[0041]
10-05-2019
7
The speaker diaphragm according to the present invention can be applied to various acoustic
devices that maintain the airtightness of the front and back of the diaphragm at the gasket
portion.
[0042]
Reference Signs List 1 diaphragm body 2 edge 3 gasket 5 mold 6 mold 7 gate 8 inclined 11
diaphragm body 12 edge 13 gasket 14 cushion 21 magnet 22 top plate 23 yoke 24 magnetic
circuit 25 magnetic gap 26 frame 27 diaphragm 28 voice coil
10-05-2019
8
Документ
Категория
Без категории
Просмотров
0
Размер файла
16 Кб
Теги
jp2010263281
1/--страниц
Пожаловаться на содержимое документа