Patents Assigned to TOKYO CHIKUMA SANGYO CO., LTD.
  • Patent number: 8986142
    Abstract: Longitudinal grooves having rectangular cross-sections are formed by surface pressing in the front and/or back surfaces of the metal base plate of a chain guide. In the case of a chain guide for a roller chain, the grooves can be positioned so that they are located opposite the parts of the shoe surface that is contacted by the link plates on both sides of the chain.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: March 24, 2015
    Assignees: Tsubakimoto Chain Co., Tokyo Chikuma Sangyo Co. Ltd.
    Inventors: Tadashi Shintani, Hiroyuki Ando
  • Publication number: 20090075769
    Abstract: Longitudinal grooves having rectangular cross-sections are formed by surface pressing in the front and/or back surfaces of the metal base plate of a chain guide. In the case of a chain guide for a roller chain, the grooves can be positioned so that they are located opposite the parts of the shoe surface that is contacted by the link plates on both sides of the chain.
    Type: Application
    Filed: June 20, 2008
    Publication date: March 19, 2009
    Applicants: TSUBAKIMOTO CHAIN CO., TOKYO CHIKUMA SANGYO CO., LTD.
    Inventors: Tadashi Shintani, Hiroyuki Ando