Title:
DIAPHRAGM FOR SPEAKER, DIAPHRAGM FOR SPEAKER MANUFACTURING DEVICE, AND METHOD FOR MANUFACTURING DIAPHRAGM FORM SPEAKER
Document Type and Number:
Japanese Patent JP2020036151
Kind Code:
A
Abstract:
To prevent, in manufacturing a diaphragm for a speaker, the imbalance between and aggregation of a fiber and the other material in mixing the fiber and the other material.SOLUTION: A diaphragm manufacturing device 100 comprises: a fibrillation unit 20 that fibrillates a material MA including a fiber; a mixing unit 50 that mixes a binding material for binding fibers in a fibrillated material MB fibrillated by the fibrillation unit 20; a second web forming unit 70 that deposits the mixture MX mixed by the mixing unit 50; and a molding unit 200 that forms a second web W2 deposited by the second web forming unit 70 into a diaphragm CP through molding processing including application of pressure and heat.SELECTED DRAWING: Figure 3
Inventors:
YOSHIOKA SATOMI
UCHIDA MASAHIRO
UCHIDA MASAHIRO
Application Number:
JP2018160221A
Publication Date:
March 05, 2020
Filing Date:
August 29, 2018
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
H04R7/02; B27N3/00; D04H1/60; D04H1/732; H04R31/00
Domestic Patent References:
| JPS58133096A | 1983-08-08 | |||
| JPS55136792A | 1980-10-24 | |||
| JPH01282998A | 1989-11-14 | |||
| JP2017145526A | 2017-08-24 |
Attorney, Agent or Firm:
Patent Business Corporation Kushibuchi International Patent Office