Tris Inc.

Denso Corporation

Hirotada Kanagawa

Masami Niimi

Yasuyuki Wakahara

Youichi Murakami

Kyoji Inukai

Mitsuo Ikeda

Takayoshi Otani

Ryoichi Honbo

Masakiyo Shimada

Yukinobu Isoda

Mitsuhiro Hirota

Yoshihiro Nishimura

The metal graphite grounding brush including silver is made in slide contact with a peripheral surface of an axle and grounds the axle. The mass ratio between silver and carbonaceous components including a volatile component in the brush is silver above 30% and up to 90% and carbonaceous components less than 70% and down to 10%. When the total of silver and carbonaceous components is made 100%, the volatile component is down to 2.0% and up to 15%. The brush grounds the axle reliably so that noise from a car radio is reduced and has a long service life and mechanical strength.

Metal graphite grounding brush mainly composed of silver and method for producing same

A copper-zinc alloy powder of which zinc content is from 10 to 50 wt % and of which mean particle diameter is from 15 &#x3bc;m or under is added to a Pb-less brush body comprising graphite, copper and a metal sulfide solid lubricant of a copper-graphite brush.

Copper-graphite brush

Growing community of inventors

Mie, Japan

Hirotada Kanagawa