Copper-graphite brush
AssigneesTRIS Inc., Denso Corporation
InventorsTakayoshi Otani, Masakiyo Shimada, Hirotada Kanagawa, Yukinobu Isoda, Kyoji Inukai, Youichi Murakami, Yasuyuki Wakahara, Masami Niimi, Ryoichi Honbo
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Abstract
A copper-zinc alloy powder of which zinc content is from 10 to 50 wt % and of which mean particle diameter is from 15 μm or under is added to a Pb-less brush body comprising graphite, copper and a metal sulfide solid lubricant of a copper-graphite brush.
Claims6
A copper-graphite brush comprising a brush body comprising copper, graphite and a metal sulfide solid lubricant and an outer terminal connected with said brush body characterized in that
- said brush body includes substantially no lead and a copper-zinc alloy is added to at least one member of said brush body and a connection part between said brush body and said outer terminal;
- and
- said cooper-zinc alloy is in the form of particles having a mean particle diameter of 15 μm or under.
A copper-graphite brush comprising a brush body to which a metal sulfide solid lubricant is added and an outer terminal connected with said brush body characterized in that
- a copper-zinc alloy is added to at least one member of said brush body and a connection part between said brush body and said outer terminal, said copper-zinc alloy being in the form of particles having a mean particle diameter of 15 μm or under.
Dependencies are inferred from the claim text.