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JPS6343497

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DESCRIPTION JPS6343497
[0001]
FIELD OF THE INVENTION The present invention relates to a method of manufacturing a spiral
diaphragm. (Conventional art and its problems) Conventionally, the diaphragm of the
electroacoustic transducer is generally a molded product of paper, and as a special application,
there is, for example, a molded product of a drip-proof resin. In the case of paper, a valve is used
as a raw material to make a valve chiller, and a mold is used to produce a paper by pressing and
drying using a non-press. In the case of resin, for example, it is manufactured by press molding
with a mold using a mylar sheet as a raw material. However, in any of the manufacturing
methods, the yield of the raw material or the raw material is poor and is about 50%. In the
former case, the raw material pulp deteriorates as it is extracted from the valve chiller 1 and is
discarded. Moreover, in the case of a returnee, there is a cut-off portion depending on the shape
of the molded product, and it is discarded similarly. However, these wastes cause pollution with
sludge or non-burning wastes. That is, in the conventional diaphragm manufacturing method,
there is a problem that the yield is bad (and the harmful waste is generated. In addition, the
sheet-like material has a deep squeeze [71 temporary production was difficult. Means for Solving
the Problems The present invention has been proposed to solve the above problems, and a
diaphragm is formed by bonding a diamond-like material after winding a string-like material
around a mold. It is a method of manufacturing. Hereinafter, embodiments of the present
invention will be described with reference to the drawings. It is needless to say that the
embodiment is one example and various changes or improvements can be made without
departing from the spirit of the present invention. FIG. 1 is a view for explaining an embodiment
of the present invention. In the figure, 1 is a type in the case of taking a diaphragm of a coneshaped speaker as an example. As the mold, a mold or a mold having a heating unit (not
particularly shown) inside is used as necessary. A string-like material to be an FjltlI plate is tightly
wound on the mold 1 as shown in the figure. If necessary, the outside is crimped using a mold
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(not shown) from the outside. After these steps, the adjacent contact portions 3 of the stringed
material are glued, and then removed from the mold to complete the manufacture of the coneshaped diaphragm. Next, a string-like material to be a diaphragm will be described. A material
made of paper, metal, polymer material or the like used as a base material of the diaphragm is
previously processed to have a thickness in consideration of the stiffness etc. which is required in
the finished state as a Fit moving plate. If this string-like material is required, it is wound around
the die 1 shown in FIG. 1 while applying an auxiliary material for forming a contact material or a
string-like material on a diaphragm.
I finish the bond by doing the hatching work. Furthermore, molding will be described. Various
shaping methods are conceivable depending on the balance of the material of twilled lumber
applied to the method according to the invention; In the case of a string-like material I'f
thermoplastic resin, heat the mold directly without using an adhesive or raise the temperature to
the melting point by heating with hot air etc. to fuse the string-like material itself Is also possible.
The heating method can be similarly applied to the case of using a solder-plated metal foil as the
string-like material. Further, depending on the resin material of the string-like material, there is
also a method of using a solvent instead of the contact agent to cause self-fusion. In the case of
using a heat-curing resin or natural [i as a string-like material, it is possible to increase the
working efficiency by using a UV-curable adhesive (II. FIG. 2 is a view for explaining another
embodiment of the present invention, in which 4 is a reinforcing material made of a shape
memory alloy or the like in advance and disposed on a mold (not shown), A string-like material is
wound on top of it to form and integrate it, so that it is possible to prevent deformation or the
like due to a change in the degree of 'A'. (Effect of fi light) As described above, according to the
present invention, a bond in which a string-like material is spirally wound on a mold, and a
material that forms a diaphragm by bonding and forming the string-like material + Oo yield? o It
is possible to improve near. Moreover, although the diaphragm of the deep diaphragm was not
able to be manufactured in a sheet-like material, it can manufacture easily if this invention is
applied.
[0002]
Brief description of the drawings
[0003]
FIG. 1 is a perspective view for explaining an embodiment of the present invention, and FIG. 2 is
a plan view seen from the inside of a cone for explaining another embodiment of the present
invention.
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1 .... type, 2 .... string-like material, 3 ... contact n part, 4 ... reinforcement patent applicant Foster
Electric stock Preheat ? + 4 representative patent attorney and high mountain road,, ;,%, == иии +1.
-+; 7 other 1 person 1 figure 1 Figure 2 procedure Newori (Spontaneous) 1 group (46 January,
46 January 1988 special edition rF 11i 1186920 M 2, name of the invention Method of
manufacturing spiral part moving plate 3 The relationship between the person making
corrections and the case Patent applicant Name Foster Electric Co., Ltd. 4 Representative: 160
residences Nishi Shinjuku, Shinjuku-ku, Tokyo 10-113 Enami Building 5F Telephone (03) 36521! Ten, two, Mr. Name A patent attorney (812! l) Takamichi Road 1 ?, ?: ',' '; j' l #) 5.7 ffi
Positive subject specification? Detailed description of the invention ?column 6, contents of
correction
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