close

Вход

Забыли?

вход по аккаунту

?

JP2001320796

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 JP2001320796
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker device capable of driving with large amplitude and a method of manufacturing the same.
[0002]
2. Description of the Related Art FIG. 4 shows the structure of a roll edge portion of a
conventional cone speaker. The operating principle of the cone speaker is briefly described
below. First, when an electric signal is applied to a wire ring of a voice coil (not shown), a driving
force is generated in the magnetic circuit. The driving force is transmitted to the voice coil
bobbin, and the diaphragm 41 fixed to the tip is vibrated to emit a sound corresponding to the
vibration through the diaphragm 41. The diaphragm 41 has a conical shape for converting the
vibration from the voice coil bobbin into a sound wave, and is rolled on the rigid frame 42 so that
the periphery is positioned forward to the listener with respect to the central portion of the
diaphragm 41 It is supported through the edge 43. Essentially, the roll edge 43 is easily
deformed against the force in the back and forth direction of the diaphragm 41 so as not to
disturb the vibration of the diaphragm 41, and repels and rebounds against the circumferential
force. To prevent eccentricity.
[0003]
By the way, the material of the above-mentioned roll edge 43 is impregnated with a phenol resin
11-05-2019
1
or a melamine resin, and further, a paper or a paper which is sealed with an acrylic resin or a
melamine resin NBR or the like. Nonwoven fabrics made of natural fibers or synthetic fibers, nonwoven fabrics made of chemical fibers such as polyester or nylon, non-woven fabrics made of
cellulosic chemical fibers, cotton etc., plastic films, plastic sheets made of foamed urethane, deer
skin and goat skin Such as leather, rubber sheet (including synthetic rubber).
[0004]
The roll edge 43 described above is formed by an edge mold, so that the height (H) to the width
(W) of the roll edge 43 is limited.
Therefore, when it is desired to obtain a large amplitude at a large input, the width (W) of the
edge inevitably becomes large, and at this time, the vibration area becomes small and the
sensitivity of the roll edge 43 is lowered. Therefore, it is conceivable to mold the height (H) of the
edge large, but at present, there is no mold having the relationship of edge height (H)> edge
width (W), which hinders large amplitude drive. It had become.
[0005]
The present invention has been made in view of the above circumstances, and a speaker
diaphragm is adhered to an inner peripheral edge of an edge member having an edge portion of
a substantially flat surface, and a speaker with large amplitude can be obtained by displacing the
speaker diaphragm. It aims at providing an apparatus. Also, by providing a step of adhering a
speaker diaphragm to the inner peripheral edge of an edge member having an edge portion of a
substantially flat surface, and a step of bending the edge portion of the edge member by
displacing the speaker diaphragm. Another object of the present invention is to provide a method
of manufacturing a speaker device capable of obtaining a large amplitude.
[0006]
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the invention
according to claim 1 comprises an edge member having an edge portion of a substantially flat
surface, and a speaker vibration adhered to the inner peripheral edge of the edge member. A
plate is provided, the edge portion of the edge member is curved by displacing the speaker
diaphragm, and the curved edge portion constitutes a roll edge.
11-05-2019
2
[0007]
The invention according to claim 2 is an edge member having an inner peripheral edge and an
outer peripheral edge in addition to an edge portion of a substantially flat surface, a speaker
diaphragm adhered to the inner peripheral edge of the edge member, and an outer peripheral
edge of the edge member And a frame attached to the frame, and by displacing the speaker
diaphragm, the edge portion of the edge member is curved, and the curved edge portion
constitutes a roll edge.
[0008]
The invention according to claim 3 is that in the speaker apparatus according to claim 1 or 2, the
height of the curved edge portion is larger than the width thereof.
According to each of the above configurations, the speaker diaphragm can be attached to the
edge member formed on a substantially flat surface, and a speaker device provided with a roll
edge that can obtain large amplitude by, for example, pressing can be provided. And the height
(H) of the edge portion have a relationship of W <H.
[0009]
The invention according to claim 4 is a method of manufacturing a speaker device, comprising
the steps of: adhering a speaker diaphragm to an inner peripheral edge of an edge member
having an edge portion of a substantially flat surface; and displacing the speaker diaphragm And
bending the edge portion of the edge member.
[0010]
The invention according to claim 5 is a method of manufacturing a speaker device, comprising
the steps of: adhering a speaker diaphragm to an inner peripheral edge of an edge member
having an edge portion of a substantially flat surface; And the step of bending the edge portion of
the edge member by displacing the speaker diaphragm.
[0011]
The invention according to claim 6 is that, in the method for manufacturing a speaker device
11-05-2019
3
according to claim 4 or 5, the height of the curved edge portion is larger than the width thereof.
As a result, the speaker diaphragm can be attached to the edge member formed on a
substantially flat surface, and a speaker device having a roll edge with high amplitude can be
manufactured, for example, by pressing it down. At this time, the width (W) of the edge portion
and The height (H) of the edge portion has a relationship of W <H.
[0012]
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a process diagram referred to in
order to explain a method of manufacturing a speaker device of the present invention.
In the figure, 11 is a speaker diaphragm, 12 is a frame, and 13 is an edge member.
As apparent from the figure, first, an edge member 13 having an edge portion of a substantially
flat surface is prepared (a), and the speaker diaphragm 11 is adhered to the inner peripheral
edge 13a of the edge member 13 (b). Then, the outer peripheral edge 13b of the edge member
13 is attached to the frame (c), and the edge portion of the edge member 11 is curved by
displacing the speaker diaphragm 11 (d) to form a roll edge. Here, by pushing the speaker
diaphragm in the direction of the arrow in the drawing, edge width W <edge height H can be
realized, and a roll edge capable of obtaining a large amplitude can be configured.
[0013]
The material of the edge member 13 is a paper impregnated with a phenol resin or a melamine
resin and further blocked with an acrylic resin, a melamine resin NBR or the like, a woven fabric
made of natural fibers or synthetic fibers, Non-woven fabric using chemical fiber such as ester
and nylon, non-woven fabric using cellulose chemical fiber, cotton etc., plastic film, plastic sheet
such as urethane foam, leather sheet such as deer skin and goat skin, rubber sheet Also, the
material of the cone of the speaker diaphragm 11 is a conventionally used material such as paper
and mixed paper treated with various treatments, cloths, various plastics, rubber, metal, various
composite materials, etc. It can be done.
[0014]
11-05-2019
4
FIG. 2 is a diagram referred to in order to show the structure of the roll edge portion in the
speaker device of the present invention.
In the figure, (a) shows a sectional structure of the speaker device, (b) shows a planar structure,
and in (a) and (b), the blocks given the same numbers as in FIG. 1 are the same as those in FIG.
Do.
[0015]
As apparent from the figure, the speaker device of the present invention is adhered to the edge
member 13 having the inner peripheral edge 13a and the outer peripheral edge 13b in addition
to the trapezoidal shaped edge portion 13 and the inner peripheral edge 13a of the edge member
13. The speaker diaphragm 11 and the frame attached to the outer peripheral edge 13 b of the
edge member 13 are provided. The speaker diaphragm 11 thus configured is displaced. In this
case, the edge portion of the edge member 13 is curved by being depressed in the arrow
direction, and the curved edge portion constitutes a roll edge.
[0016]
FIG. 3 is a diagram referred to in order to explain the influence of the structural difference
between the roll edge portion of the embodiment (a) of the present invention and the
conventional example (b) on the effect. In the figure, those given the same numbers as in FIG. 2
are the same as those in FIG.
[0017]
In general, the vibration area a is represented by (a1 + a2) / 2, and the sound pressure Pr of the
speaker device is represented by Ka2. Here, since K is a parameter, the sound pressure Pr is
proportional to the vibration area a2. Here, as apparent from the figure, the vibration area (a)>
the vibration area (b) holds, and according to the present invention, the speaker diaphragm 11 is
formed on the inner peripheral edge 13a of the edge member having the edge portion 13 of a
substantially flat surface. The sound pressure of the speaker is higher in the case of edge
molding by displacing the speaker diaphragm 11 by adhering the above-mentioned speaker
11-05-2019
5
diaphragm 11. Therefore, it is possible to realize a roll edge with a large amplitude.
[0018]
As described above, according to the present invention, the speaker diaphragm is adhered to the
inner peripheral edge of the edge member having the edge portion of the substantially flat
surface, and the speaker diaphragm is displaced by, for example, pressing down or rotating This
makes it possible to prevent the sensitivity reduction, which is a problem of roll edge, and to
perform large amplitude driving.
[0019]
As described above, according to the present invention, the speaker diaphragm is adhered to the
inner peripheral edge of the edge member having the edge portion of the substantially flat
surface, and the speaker diaphragm having a large amplitude can be obtained by displacing the
speaker diaphragm. And providing a speaker diaphragm on an inner peripheral edge of an edge
member having an edge portion of a substantially flat surface, and displacing the speaker
diaphragm to thereby process the edge portion of the edge member. By providing the step of
curving, it is possible to prevent the sensitivity decrease which has been a problem of the roll
edge, and to provide a method of manufacturing a speaker device having a large amplitude.
The present invention is effective in both home use and in-vehicle use.
[0020]
Brief description of the drawings
[0021]
1 is a process diagram cited to explain the manufacturing method of the speaker device in the
present invention.
[0022]
2 is a diagram cited to explain the speaker device of the present invention.
[0023]
11-05-2019
6
3 is a diagram referred to in order to explain the influence of the structural difference of the roll
edge portion of the embodiment of the present invention and the conventional example on the
effect.
[0024]
4 is a diagram showing the structure of the roll edge portion of the conventional cone speaker.
[0025]
Explanation of sign
[0026]
11 Speaker diaphragm (cone) 12 frame 13 edge member 13a inner edge 13b edge outer edge
11-05-2019
7
Документ
Категория
Без категории
Просмотров
0
Размер файла
15 Кб
Теги
jp2001320796
1/--страниц
Пожаловаться на содержимое документа