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JPS5798097

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DESCRIPTION JPS5798097
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top view showing an embodiment of the
speaker gasket according to the present invention, FIG. 2 is a front view thereof, and FIGS. 3 to 5
are perspective views of the assembly process of the same gasket. It is. 1 ... gasket body, 2 ...
through hole, 3 ... joint.
DETAILED DESCRIPTION OF THE INVENTION The present invention seeks to provide an
inexpensive endless speaker gasket which can be molded by one type of molding and has any
diameter. A conventional ring-shaped endless gasket for a speaker is manufactured by molding
one by one in a ring shape with a mold having a size corresponding to the diameter of each
speaker. For this reason, a die for each diameter is required, and the molding time is also long,
which makes it economically disadvantageous. ■) The extrusion molding 10, IO /: 1 ° to
eliminate such defects. C n A, one /. (2) A speaker gasket has been developed that cuts the viscoelastic resin into an arbitrary length and integrates it into the speaker in the speaker
manufacturing process to make it endless. However, to incorporate it endlessly in the speaker
manufacturing process. It takes more time than the endless type, and the productivity of the
speaker is significantly deteriorated, and a gap or a gap is formed in the connecting portion,
which often deteriorates the appearance quality. Furthermore, it has been considered to make a
slip-splice connection between both end faces before being incorporated into a speaker with an
adhesive, but there is a drawback such as the adhesive sticking out and degrading the
appearance quality. The present invention eliminates the above-mentioned conventional
drawbacks. Hereinafter, an embodiment of the present invention will be described with reference
to FIGS. 1 to 5 of the drawings. Reference numeral 1 denotes a gas foot element of rectangular
cross section having a through hole 2 at the center made of a viscoelastic resin such as rubber
and soft polyvinyl chloride, which is formed by continuous extrusion molding as shown in FIG. As
shown in the figure, cut into a length of a certain length) to form a ring, press the bar-like sewing
machine 3 into the through hole 2 of this one cut 0513 part and then press fit into the through
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hole 2 of the other cut portion And an endless gasket. The completed state of this gasket is
shown in FIG. 1 and FIG. The diameter of the handle 3 is configured to be 5% to 20% larger than
the diameter of the through hole 2, and it becomes an interference fit by press-fitting the through
hole 2. As described above, since the speaker gasket of the present invention is configured, if
there is only one extrusion molding die, it is only necessary to cut the molded gasket body into a
predetermined length and press-fit the sewing machine into both cut surfaces. An endless, ringshaped gasket of the required diameter is obtained, and since no adhesive is used, assembly can
be performed in a short time, productivity is high, and it is economical, and further, the
protrusion of the adhesive and the displacement of the joint portion Such defects can be
eliminated, and the appearance quality can be improved, which is of great practical value.
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