Spring Patents (Class 238/18)
  • Guard rail apparatus for guiding derailed wheels
    Patent number: 8485452
    Abstract: The first object of the present invention is to provide a derailment prevention guard which can be easily shunted outside the range of the ballast tamping work, the rail grinding work and the rail maintenance work, and has no problem on safety.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: July 16, 2013
    Assignees: Central Japan Railway Company, Yamato Trackwork System Co., Ltd.
    Inventors: Masaki Seki, Takashi Kachi, Tomomi Funada, Takaaki Irie, Katsunari Konishi, Tetsuya Hanazaki
  • Wheel guard device
    Patent number: 8302877
    Abstract: The first object of the present invention is to provide a derailment prevention guard which can be easily shunted outside the range of the ballast tamping work, the rail grinding work and the rail maintenance work, and has no problem on safety.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: November 6, 2012
    Assignees: Central Japan Railway Company, Yamato Trackwork System Co., Ltd.
    Inventors: Masaki Seki, Takashi Kachi, Tomomi Funada, Takaaki Irie, Katsunari Konishi, Tetsuya Hanazaki
  • Safety device for a train
    Patent number: 7891577
    Abstract: A derailment prevention guard includes a guard member (3) installed within a gauge and a support member (6) fixed to a sleeper (4) or a concrete slab track. The guard member (3) engages a hold member (8) moveable around an axis (7) supported by the support member (6) as turning center between a main rail (1) and the inside of the gauge on the sleeper. The support member (6) engages the hold member (8) by bolt (12) through turning the hold member (8) toward the main rail (1) around the central axis (7) as turning center on the sleeper (4), and the guard member (3) can be shunted inward by turning the hold member (8) toward the inside of the gauge around the central axis (7) as turning center on the sleeper (4) after loosening the bolt (12).
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: February 22, 2011
    Assignees: Central Japan Railway Company, Yamato Trackwork System Co., Ltd.
    Inventors: Masaki Seki, Takashi Kachi, Tomomi Funada, Takaaki Irie, Katsunari Konishi, Tetsuya Hanazaki
  • Safety Device for a Train
    Publication number: 20090200389
    Abstract: A derailment prevention guard includes a guard member (3) installed within a gauge and a support member (6) fixed to a sleeper (4) or a concrete slab track. The guard member (3) engages a hold member (8) which can turn moveable around an axis (7) supported by the support member (6) as turning center between a main rail (1) and the inside of the gauge on the sleeper. The support member (6) engages the hold member (8) by bolt (12) through turning the hold member (8) toward the main rail (1) around the central axis (7) as turning center on the sleeper (4), and the guard member (3) can be shunted inward by turning the hold member (8) toward the inside of the gauge around the central axis (7) as turning center on the sleeper (4) after loosening the bolt (12).
    Type: Application
    Filed: May 11, 2006
    Publication date: August 13, 2009
    Applicants: CENTRAL JAPAN RAILWAY COMPANY, YAMATO TRACKWORK SYSTEM CO., LTD.
    Inventors: Masaki Seki, Takashi Kachi, Tomomi Funada, Takaaki Irie, Katsunari Konishi, Tetsuya Hanazaki