Title:
OPTICAL FIBER COATING LAYER FORMING DEVICE AND OPTICAL FIBER COATING LAYER FORMING MOLD
Document Type and Number:
WIPO Patent Application WO/2024/075781
Kind Code:
A1
Abstract:
An optical fiber coating layer forming mold has an upper mold having a first facing surface and a lower mold having a second facing surface. A first groove is formed in the first facing surface. A second groove is formed in the second facing surface. The first groove and the second groove are connected with each other to constitute a main molding space where the liquid resin that is a material of the coating layer is filled. A width direction is orthogonal to a longitudinal direction of the main molding space and a facing direction of the first facing surface and the second facing surface. An expansion recessed portion is formed in at least one of the first facing surface and the second facing surface. The expansion recessed portion constitutes an expansion space expanding in the width direction from the main molding space.
Inventors:
SAGAE SHUTA (JP)
SAITO SHIGERU (JP)
SAITO SHIGERU (JP)
Application Number:
PCT/JP2023/036236
Publication Date:
April 11, 2024
Filing Date:
October 04, 2023
Export Citation:
Assignee:
FUJIKURA LTD (JP)
International Classes:
B29D11/00
Foreign References:
| US20020184924A1 | 2002-12-12 | |||
| US20020044749A1 | 2002-04-18 | |||
| US20040146596A1 | 2004-07-29 | |||
| JP2022160995A | 2022-10-20 | |||
| JP2003167150A | 2003-06-13 |
Attorney, Agent or Firm:
OIKAWA Shu et al. (JP)
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