The Furukawa Electric Co., Ltd.

Furukawa Automotive Systems Inc.

Hideki Nakazato

Shinya Saito

Kazumasa Sakata

Kengo Aburaya

Shinichi Jingama

Yuji Yamauchi

Tomoharu Ito

A nut press-fit portion () includes a bottom surface (), inner peripheral wall surfaces (), press-fit ribs (), and contact parts (). The bottom surface () is opposing to a press-fit direction. The inner peripheral wall surfaces () are generally parallel to the press-fit direction. The press-fit ribs () are protruded from the inner peripheral wall surfaces () and elongated along the press-fit direction so as to contact the peripheral surfaces of a press-fitted nut (). The contact parts () are disposed above the bottom surface () so as to contact the press-fitted nut () from below. Furthermore, the contact parts () are disposed so as neither to interfere with shavings reachable regions () nor to overlap the shavings reachable regions () in the press-fit direction, the shavings reachable regions () being imaginary extensions of the press-fit ribs () in the direction of protrusion thereof from the inner peripheral wall surfaces ().

Base member with nut press-fit portion

Provided is a metal core board which has a preferable function for a vehicle-mountable junction box, specifically, is reduced in size or improved in mounting efficiency. A metal core board for a vehicle-mountable junction box, which is mountable on the vehicle-mountable junction box, wherein a core plate forming an intermediate layer of the metal core board has a plurality of slits and an island surrounded by separating connection parts present between the slits; and in the state where the island is held between insulating layers stacked on both of two surfaces of the core plate, through-boresare formed at the separating connection parts to remove the separating connection parts and the island is made electrically independent from a remaining part of the core plate while being held between the insulating layers. Thus, a plurality of circuits can be formed.

Metal core board for vehicle-mountable junction box

Growing community of inventors

Shiga, Japan

Hideki Nakazato