US Patent No. 9,968,017

ELECTROMAGNETIC SHIELDING TUBE


Patent No. 9,968,017
Issue Date May 08, 2018
Title Electromagnetic Shielding Tube
Inventorship Masanori Yamasaki, Shiga (JP)
Tatsuya Yuasa, Shiga (JP)
Yoshiyuki Hirayama, Shiga (JP)
Nobuaki Sakai, Shiga (JP)
Naoko Omori, Shiga (JP)
Masakazu Kozawa, Shiga (JP)
Takuro Yamada, Shiga (JP)
Manabu Kojima, Shiga (JP)
Assignee FURUKAWA AUTOMOTIVE SYSTEMS INC., Shiga (JP) FURUKAWA ELECTRIC CO., LTD., ...

Claim of US Patent No. 9,968,017

1. An electromagnetic shielding tube for an electric car through which an electric wire can be inserted comprising;an inner layer made of resin,
a metal layer formed on the periphery of the inner layer, and
an outer layer made of resin formed on the periphery of the metal layer, wherein
the electromagnetic shielding tube is a composite tube, with laminated layers of the inner layer, the metal layer and the outer layer, wherein each layer comprises a straightforward tube,
the bonding strength between the inner layer and the metal layer is stronger than the bonding strength between the metal layer and the outer layer,
the thickness of the inner layer is thicker than the thickness of the outer layer, and
the metal layer is made by forming a strip-shaped member into a cylinder, butting both ends of the strip-shaped member without forming a lapped part, and bonding the butted part by welding, and
the resin of the inner layer has a higher adhesion property with the metal layer than the resin of the outer layer.