US 12,255,429 B2
Carbon grounding brush
Taisuke Hattori, Matsusaka (JP); and Yuma Fukuta, Matsusaka (JP)
Assigned to TRIS INC, Matsusaka (JP)
Appl. No. 18/018,285
Filed by TRIS INC., Matsusaka (JP)
PCT Filed Jul. 6, 2021, PCT No. PCT/JP2021/025432
§ 371(c)(1), (2) Date Jan. 27, 2023,
PCT Pub. No. WO2022/024682, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 2020-130285 (JP), filed on Jul. 31, 2020.
Prior Publication US 2023/0299547 A1, Sep. 21, 2023
Int. Cl. H01R 39/64 (2006.01); B60R 16/06 (2006.01)
CPC H01R 39/64 (2013.01) [B60R 16/06 (2013.01); H01R 2201/26 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A carbon grounding brush comprising:
a sintered body of carbon having a shape of a rectangular cuboid, wherein
a sliding surface of the sintered body is configured to slide on and ground a driving shaft transmitting a driving force and be exposed to an insulating liquid,
said sliding surface is provided with at least a slit,
at least one end of said slit is extended to at least one side of the sliding surface, and
the slit is configured to introduce into the slit the insulating liquid pressed by rotation of the driving shaft towards the sliding surface and discharge the insulating liquid from the one end.