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Description: A pad manufacturing method for a headphone A method of placing a circular cloth
having a synthetic resin layer on a mold provided with an annular recess leading to a vacuum
machine, operating the vacuum machine, and along the annular recess The dough is bent, and
then a cushioning material such as donut-like rettan foam is placed in the annular recess, and the
same material of small diameter as the dough is overlaid thereon to form the outer and outer
peripheral edges of the recess. A method of manufacturing a pad for a headphone characterized
by welding and cutting by a uni-leader 0
2% claim scope
3. Detailed Description of the Invention The present invention relates to a method of
manufacturing a pad used in the ear pad of a headphone. Conventionally, this type of pad is
manufactured by sewing or vacuum forming using a polyvinyl chloride film. In the former, it is
difficult to express wrinkles on the whole, there is a disadvantage in climbing up the skill, and it
is expensive. In the latter case, the skin texture to the ear is bad and the weather resistance is not
good. It has a defect that is relatively weak and can not withstand long-term use. An object of the
present invention is to provide a pad which is uniformly wrinkled, has a good contact with the
ear, and has an excellent feeling in use. In order to fulfill the above object, the present invention
operates a vacuum machine by making a circular cloth having a synthetic resin layer in a mold
provided with an annular concave part leading to a vacuum machine, and operates the cloth
along the annular concave part. Bend and then toroidal toroidal foam cushioning material.
EndPage: 1 in the recess, on top of it the same diameter smaller than the above. The quality
fabric is piled up and welding cutting of the inside and outside peripheral part of a crevice is
carried out by ureruda. Next, an embodiment of a method for manufacturing a headphone pad
according to the present invention will be described with reference to the drawings. In the figure,
reference numeral 1 denotes a formwork in which an annular recess 2 is formed on the upper
surface, an insulating plate 3 is provided around the recess 2 and a buffer material 5 of the
pressing piece 4 is provided outside thereof. The mold 1 forms a true wall chamber 6
communicating with the vacuum machine, and communicates the vacuum chamber 6 with the
annular recess 2 through several pores 7.7. 8 is a connection joint of a vacuum pipe. The circular
cloth 9 of the material shown in FIG. 1 is placed on the recess 2 on the formwork having the
above configuration. Then, the vacuum machine is operated, and the circular cloth 9 having the
synthetic resin layer is adsorbed along the recess 2. Then insert the doughnut-shaped cushioning
material 10 of (3) gum of the circular dough 9 into the recess 2 and put the small homogeneous
dough 11 on it and use the blade U of the Urelda 12 and the electrode 14 to make the inner and
outer peripheral edge of the recess 2 Cut and weld the pad to complete the fabrication of the pad
0 in the figure. Reference numeral 15 denotes a vent formed in the small-diameter circular cloth
11. The present invention is easy and quick to manufacture because the pad is manufactured by
the above-mentioned method, and in particular, the appearance of the wrinkled part is equally
good without having to spend the skill, compared with the conventional sewing. True PVC film.
Compared with the ones that are formed by extrusion, they are better in terms of ear noise, and
can provide robust and excellent products at low cost.
j Brief Description of the Drawings The drawings show one embodiment of a method of
manufacturing a pad for a headphone according to the present invention, and FIG. 7 shows a pad.
(4) An exploded perspective view of the molding material, FIGS. 2 to 7 show molding. FIG. 7 is a
front view in vertical section showing a state in which the material of FIG. 7 is applied to a
formwork, and FIG. S is a sectional view of a welding cutting blade. 1 · · Formwork · 2 · · Annular
recess, 4 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · small diameter circular cloth, le · welder, 13 @ ·
blade, 14 · · · ·electrode. Patent applicant Sun Beam Industrial Co., Ltd. Attorney Attorney Izawa.
Takeshi Tsuji Kamiizawa -1 '1' r "EndPage: 2