US 12,311,464 B2
Electric wire manufacturing method and electric wire manufacturing apparatus
Kei Sato, Shizuoka (JP)
Assigned to YAZAKI CORPORATION, Tokyo (JP)
Filed by Yazaki Corporation, Tokyo (JP)
Filed on Jul. 15, 2021, as Appl. No. 17/376,438.
Claims priority of application No. 2020-124830 (JP), filed on Jul. 22, 2020.
Prior Publication US 2022/0023971 A1, Jan. 27, 2022
Int. Cl. B23K 26/00 (2014.01); B23K 26/24 (2014.01); H01R 4/18 (2006.01); H01R 43/02 (2006.01)
CPC B23K 26/24 (2013.01) [H01R 4/187 (2013.01); H01R 43/0221 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electric wire manufacturing method comprising:
placing a core wire having a plurality of strands inside a tubular member capable of transmitting laser light such that a space is provided between a distal end surface of the core wire and a first end surface of the tubular member, the tubular member comprising an opening extending from one end of the tubular member to another end of the tubular member in an axial direction of the tubular member such that the tubular member has a C-shape cross section; and
forming a joined portion where the strands are joined together by emitting laser light through the opening and along a direction intersecting the axial direction of the tubular member directly onto an outer circumferential surface of the core wire placed inside the tubular member.