US 12,191,643 B2
Joining structure, joining method, exterior body for wire harness, and wire harness
Hiroshi Suyama, Tokyo (JP); Takashi Oshino, Tokyo (JP); and Naoyuki Kojima, Tokyo (JP)
Assigned to FURUKAWA ELECTRIC CO., LTD., Tokyo (JP); and FURUKAWA AUTOMOTIVE SYSTEMS INC., Inukami-gun (JP)
Filed by FURUKAWA ELECTRIC CO., LTD., Tokyo (JP); and FURUKAWA AUTOMOTIVE SYSTEMS INC., Inukami-gun (JP)
Filed on Sep. 13, 2022, as Appl. No. 17/931,643.
Application 17/931,643 is a continuation of application No. PCT/JP2021/012555, filed on Mar. 25, 2021.
Claims priority of application No. 2020-055160 (JP), filed on Mar. 25, 2020.
Prior Publication US 2023/0006430 A1, Jan. 5, 2023
Int. Cl. H02G 3/04 (2006.01); H01B 3/44 (2006.01)
CPC H02G 3/0406 (2013.01) [H01B 3/44 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A joining structure, comprising:
a first member comprising a first resin; and
a second member comprising a second resin,
wherein the first member and the second member is joined to each other,
the second resin has a higher foaming ratio than the first resin,
the joining structure has a recessed joining portion that extends from an outer surface of the second member and reaches at least an interior of the first member in a state in which the first member and second member are overlapped on each other,
a joining surface between the first member and the second member has a hot-molten portion spreading outward in a ring shape, and
the hot-molten portion has a ring width dimension of 0.5 mm or larger.