Patents Assigned to Taisei Kohzai Kabushiki Kaisha
  • Flexible shaft having element wire groups and lubricant therebetween
    Patent number: 5288270
    Abstract: A flexible shaft has an inner shaft with a steel core wire and element wire groups which are formed by closely adhering a plurality of steel element wires into band shapes wound around the steel core wire by turns in reverse directions relative to each other. The plurality of element wire groups are formed in layers and in concentric sections. Lubricant is impregnated in clearances between the plurality of steel element wires.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: February 22, 1994
    Assignee: Taisei Kohzai Kabushiki Kaisha
    Inventor: Yoshiaki Ishikawa