Patents Assigned to KUSANAGI RYOTA
  • Publication number: 20070124945
    Abstract: When ceramic is used for blades of scissors, shear stress is concentrated on a pivot, and when the blades are fixed by a typical metal bolt, the bolt becomes worn out causing the scissors to rattle, due to the ceramic having hardness larger than the metal bolt, which affects the durability of the scissors. The present invention provides a pair of scissors 1 that includes a pivot 2 rotatably supporting top and bottom blades 1A and 1B, in which the blades 1A and 1B are made of a sintered ceramic, through holes 1Aa and 1Ba are formed at the pivot 2, a ceramic ring 2a is rotatably inserted in the through holes 1Aa and 1Ba, a fixing shaft 2a passes through the ceramic ring 2a to be fixed, and the ceramic ring 2a contains CuO.
    Type: Application
    Filed: October 2, 2006
    Publication date: June 7, 2007
    Applicant: KUSANAGI RYOTA
    Inventor: Akira Hirai