Bus bar switch for trolley-type transportation system
AssigneeNissan Motor Co., Ltd.
InventorsTakanoru Setoguchi, Yoshiaki Hidaka
Life of this patent
Estimating the term…
Abstract
Two shiftable bus bar unit point sections are simultaneously shifted to allow one of the sections to align with a stationary bus bar unit point section. A coupler slides on the stationary point section toward the just aligned one of the shiftable point sections to couple the same with the stationary point section. The shifting of the shiftable point sections and the sliding of the coupler are controlled by an operating mechanism which employs a cam. A holding device covers sealingly the electrically dangerous exposed end of the other of the shiftable point sections.
Claims8
A bus bar switch for a trolley-type transportation system including an electric motor vehicle, a current collector device carried by said vehicle, and a bus bar unit on which said current collector device rides to transmit current carried by said bus bar unit to said vehicle to drive the same, said bus bar switch comprising:
- a first point section of said bus bar unit which is stationary and has a first end;
- a second point section of said bus bar unit which is swingable about a pivotal portion thereof to allow a second end thereof to align with said first end;
- a third point section of said bus bar unit which is swingable about a pivotal portion thereof to allow a third end thereof to align with said first end;
- a link spanned between said second and third point sections to assure synchronous swinging movements of them about the respective pivotal portions allowing said second and third ends of them to selectively align with said first end;
- a coupler for coupling one of said second and third ends with said first end by receiving therein both said one and said first end, said coupler being slidable along said first point section from an inoperative position wherein said coupler fails to have a section thereof projected longitudinally outwardly from said first end, to an operative position wherein said coupler succeeds in having a section thereof projected longitudinally outwardly from said first end;
- operating means for operating both the unit of said second and third point sections and said coupler in such a manner that when both of said second and third ends are away from said first end, said coupler is kept in said inoperative position and when alignment between one of said second and third ends and said first end becomes established, said coupler is brought into said operative position thereby to couple said one with said first end;
- and
- holding devices for selectively and sealingly holding said second and third ends when these ends are away from said first end.
Dependencies are inferred from the claim text.