Patents Assigned to Yoshikawa Mfg. Co., Ltd.
  • Patent number: 5464074
    Abstract: A braking device for a two-wheeler, such as bicycle which comprises a pair of left and right arms pivotally attached to a frame of the two-wheeler, each having on its distal end portion a brake shoe, and a spring for energizing the arms to move toward brake releasing direction. This braking device is characterized in that one of the arms is more strongly energized by the spring than the other arm is, and that a stopper is provided to restrict the extent of the movement of the strongly energized arm toward the brake releasing direction, so that, when arms are being set back to the unactuated original state, this strongly energized arm is stopped of its movement by the stopper before the other arm finally returns to its original state.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: November 7, 1995
    Assignee: Yoshikawa Mfg. Co., Ltd.
    Inventor: Kunihiko Yoshikawa
  • Patent number: 5328001
    Abstract: A braking device for a two-wheeler, such as bicycle which comprises a pair of left and right arms pivotally attached to a frame of the two-wheeler, each having on its distal end portion a brake shoe, and a spring for energizing the arms to move toward brake releasing direction. This braking device is characterized in that one of the arms is more strongly energized by the spring than the other arm is, and that a stopper is provided to restrict the extent of the movement of the strongly energized arm toward the brake releasing direction, so that, when arms are being set back to the unactuated original state, this strongly energized arm is stopped of its movement by the stopper before the other arm finally returns to its original state.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: July 12, 1994
    Assignee: Yoshikawa Mfg. Co., Ltd.
    Inventor: Kunihiko Yoshikawa