US 11,657,928 B2
Production method for insulated electric wire and insulated electric wire
Toyoki Furukawa, Yokkaichi (JP)
Assigned to AUTONETWORKS TECHNOLOGIES, LTD., Mie (JP); SUMITOMO WIRING SYSTEMS, LTD., Mie (JP); and SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Filed by AUTONETWORKS TECHNOLOGIES, LTD., Yokkaichi (JP); SUMITOMO WIRING SYSTEMS, LTD., Yokkaichi (JP); and SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Filed on Apr. 26, 2022, as Appl. No. 17/729,432.
Application 17/729,432 is a continuation of application No. 17/242,390, filed on Apr. 28, 2021, granted, now 11,348,704.
Application 17/242,390 is a continuation of application No. 16/628,732, granted, now 11,024,446, issued on Jun. 1, 2021, previously published as PCT/JP2018/026425, filed on Jul. 13, 2018.
Claims priority of application No. JP2017-144607 (JP), filed on Jul. 26, 2017.
Prior Publication US 2022/0254547 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01B 7/02 (2006.01); H01B 7/285 (2006.01); H01B 7/00 (2006.01); H01B 13/00 (2006.01); H01B 13/32 (2006.01)
CPC H01B 7/285 (2013.01) [H01B 7/0009 (2013.01); H01B 13/0036 (2013.01); H01B 13/32 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An insulated electric wire comprising:
a conductor comprising a plurality of twisted elemental wires made of a conductive material, and
an insulation covering covering an outer surface of the conductor, the insulated electric wire comprising:
an exposed portion in which the insulation covering is removed from the outer surface of the conductor, and
a covered portion in which the insulation covering covers the outer surface of the conductor, wherein:
the exposed portion and the covered portion are adjacent with each other along a longitudinal axis of the insulated electric wire,
a density of the conductive material per unit length is higher in the exposed portion than in the covered portion,
the elemental wires are twisted in both the exposed portion and the covered portion including an area that is positioned away from the exposed portion by at least a distance corresponding to a length of the exposed portion, and
gaps between the elemental wires of the exposed portion are filled with a sealant made of an insulated material.