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FIELD OF THE INVENTION The present invention relates to a waterproof speaker edge. 2.
Related Art In recent years, speakers have many applications, but, among others, waterproofing
diaphragms and edges have been developed according to the need for use in the open air or in
places with high humidity, and conventionally waterproofing Rubber materials, urethane foam
resins and metals have been used as edge materials. Also, in the case of the cloth edge, a sheet of
high elastic fiber woven with a highly adhesive resin impregnated as a molding agent and coated
with an acrylic or NBR as a filler is heated and pressed. There are many Problems to be solved by
the invention However, only coating with an adhesive such as acrylic or NBR has a problem that
the capillary phenomenon causes water absorption and weight to increase with time, which
adversely affects the characteristics of the speaker. The The present invention aims to provide an
edge for a speaker capable of solving the above-mentioned conventional problems. Means for
solving the 0 problem in order to achieve this object, an edge for a speaker according to the
present invention, A highly elastic woven fabric impregnated with a good adhesive resin is woven
into a fabric sheet, which is impregnated or coated with a waterproof water repellent. Thereafter,
it is subjected to heat and pressure molding. Function With this configuration, drainage
performance can be increased, water absorption performance can be reduced, weight can be kept
constant, and speaker characteristics can be stabilized. EXAMPLES Examples of the present
invention will be described with reference to the drawings. FIG. 1 shows a high elastic fiber yarn
impregnated with an adhesive naive resin, which is woven into a fabric sheet. As the high elastic
fiber 1, carbon fiber, glass fiber, boria burl fiber, etc. are used. As the impregnating resin 2, epoxy
resin, polyamido resin, poly epsilon resin, phenol resin, alkyd resin, etc. are used. Also, by coating
or impregnating one or both sides of the fabric sheet with acrylic or NBR or the like as the filler 3
in the gaps between the fibers, the air permeability is eliminated in the first layer to improve the
filler effect. . Further, as shown in FIG. 2, the second layer of milky white emulsion-type
fluororesin 4 diluted to a concentration of 10 to 50% is coated or impregnated on one side or
both sides of the fabric sheet and then heated and pressurized. It is molded, deposits fluorine
solids, and has a water effect. Further, the adjustment of the degree of softness of the edge is
performed in accordance with the degree of dilution of the milky white emulsion type fluorinebased resin.
Effects of the Invention As described above, according to the present invention, by making the
emulsion obtained by appropriately diluting a milky white emulsion-type fluorine resin in
accordance with the degree of flexibility of the edge, impregnation or coating treatment is carried
out to increase water contact and absorb water. There is no weight change due to water
absorption, and this stabilizes the speaker characteristics.
Brief description of the drawings
FIG. 1 is an enlarged view of a fiber of a fabric sheet in which resin-impregnated high elastic fiber
is woven and a filler is coated or impregnated, and FIG. 2 is a solid of fluorine of milky white
emulsion type fluorocarbon resin is thermoformed Is an enlarged view of a state of being
deposited between fibers.
1 ······· High elastic fiber system, 2 ······· Impregnated resin, 3 ················································ Milky white
emulresin type fluorine resin. Name of Agent Attorney Nakao Toshio Other 1 person II diagram?
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