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    • 7. 发明专利
    • ROLLING BEARING UNIT
    • JP2001304281A
    • 2001-10-31
    • JP2000118801
    • 2000-04-20
    • NSK LTD
    • TAKEMURA HIROMICHI
    • F16C41/00F16C19/52H01R13/648H01R39/64H02K5/173
    • PROBLEM TO BE SOLVED: To provide a rolling bearing unit to prevent early peeling of a bearing by eliminating static electricity generated by rotational friction of a driving unit before the rolling bearing. SOLUTION: Inner rings 1n, 2n of two rolling bearings 1, 2 installed on both ends of a housing 5 are mounted on a shaft 3 free to integrally rotate. An iron made pulley 11 of the driving unit 13 is fixed on the shaft 3, and it is connected to a driving source out of the drawing through a transmission belt 12. An electricity eliminating device E to eliminate static electricity generated in the driving unit 13 is provided in front of the rolling bearing 1 nearest to the driving unit 13 (materially on an end surface of the iron made pulley 11). This electricity eliminating device E is connected to an earth 8 by pushing a fixed contact shoe 16 on a rotating contact shoe 17 provided on an end surface of the pulley 11. Consequently, generated static electricity is eliminated, an electric potential difference between the inner ring 1n and an outer ring 1g of the rolling bearing 1 can be restrained to be less than 1V, and it is possible to improve longevity by preventing early peeling of the inner and outer rings of the rolling bearing 1.
    • 8. 发明专利
    • ROLLING BEARING WITH CURRENT SHORT CIRCUIT MEMBER
    • JPH11351265A
    • 1999-12-24
    • JP13027899
    • 1999-05-11
    • SKF GMBH
    • HUBERT KETORICCHUFERDINANDO SCHWEITZER
    • F16C33/72F16C33/78F16C41/00F16J15/32H01R39/64
    • PROBLEM TO BE SOLVED: To insure necessary continuity without using special material for a bearing component itself by constituting a rolling bearing so that seals fixed to one bearing ring are connected with bushes fixed to the other bearing ring through discs of good electrical conductivity. SOLUTION: This rolling bearing 1 is adopted for example to the main motor of an electric car, and it receives current shown by flash of light. For conducting the current, seals 5 constituted of discs 6 of which the curved inner circumferential edges 7 are fixed in the circumferential grooves 8 formed on an inner ring 2, and bushes 9 of U-shaped section of which the cylindrical walls 10 are fixed to the inner circumferential face 11 of an outer ring 3, are provided on both sides of the rolling bearing 1. The free outer circumferential edge 12 of the disc 6 is received in a space 13 between both radial walls 14, 15 extending in the radial direction of the bush 9. A contact brush 16 contacting with the brush 9 is provided on the free outer circumferential edge 12 of the disc 6, and current can be let flow making a detour, without letting flow current passing the contact part positions between rolling bodies 4 and the guide race faces 17, 18 of the inner ring 2 or the outer ring 3.
    • 9. 发明专利
    • SPRING COMPRESSION TYPE REVOLUTION CONNECTOR
    • JPH09102375A
    • 1997-04-15
    • JP12747596
    • 1996-05-22
    • HUGHES AIRCRAFT CO
    • MOHI SOBAANI
    • H01R13/15H01R13/24H01R39/00H01R39/10H01R39/64
    • PROBLEM TO BE SOLVED: To make a connector robust and durable to vibration and work excellently in outdoor severe environments by soldering a plurality of electric wires to spring pressure contacts to be coupled with a metal ring having a through hole and making angle change between the metal ring and the pressure contacts possible. SOLUTION: A rotary connector 10 comprises mutually rotatable members 12, 13. The member 12 comprises phenol ring 12a having an aperture 14 to receive a shaft 11 and bearing a copper layer and form an electrically separated metal ring 15. A hole 16 is formed in rings 15 and insulated electric wires 17 are soldered to the rings. The wires 17 are led to a connector 18 to connect to an electric signal source or an electric power source. The member 13 is provided with a phenol plate having an aperture 21 for the shaft 11 or a ring 13a, which is mechanically worked to make pogo stick contacts 22 possible, and is so positioned as to be coupled with the electrically separated members 15. An insulated wires 23 are soldered to the bottom part of a contacts 22.