Patents Examined by Bartczak
  • Lever shifting device for a bicycle
    Patent number: 5020387
    Abstract: A lever shifting device for a bicycle for operating a bicycle derailleur having a return spring and provided with a positioning mechanism having a positioning member which rotates in association with an operating lever to set the speed change stage of the derailleur is disclosed. Between a fixing member and the positioning member is provided an auxiliary spring, so that the operating lever can be lightly operated against the return spring.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: June 4, 1991
    Assignee: Shimano Industrial Company, Ltd.
    Inventor: Masashi Nagano