Spindle Or Micrometer Slidable Patents (Class 33/825)
  • Digital displacement measuring instrument
    Patent number: 7552544
    Abstract: A rotor bushing restrictor (50) that prevents a rotor bushing (44) from moving away from a stator (42) is provided. The rotor bushing restrictor (50) includes a fixing member (51) fixed on a body and a rotor bushing attitude retainer (52) placed between the rotor bushing (44) and the fixing member (51). The rotor bushing attitude retainer (52) includes two first abutment portions (522) contacted with the rotor bushing (44) and two second abutment portions (523) contacted with the fixing member (51). The two first abutment portions (522) are symmetrically placed to each other with respect to the axis of the spindle (2), and the two second abutment portions (523) are symmetrically placed to each other with respect to the axis of the spindle (2). The two first abutment portions (522) and the two second abutment portions (523) are placed such that a straight line connecting the two first abutment portions (522) and a straight line connecting the two second abutment portions (523) are orthogonal with each other.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: June 30, 2009
    Assignee: Mitutoyo Corporation
    Inventors: Shuji Hayashida, Shozaburo Tsuji
  • Digital displacement measuring instrument
    Publication number: 20080250665
    Abstract: A rotor bushing restrictor (50) that prevents a rotor bushing (44) from moving away from a stator (42) is provided. The rotor bushing restrictor (50) includes a fixing member (51) fixed on a body and a rotor bushing attitude retainer (52) placed between the rotor bushing (44) and the fixing member (51). The rotor bushing attitude retainer (52) includes two first abutment portions (522) contacted with the rotor bushing (44) and two second abutment portions (523) contacted with the fixing member (51). The two first abutment portions (522) are symmetrically placed to each other with respect to the axis of the spindle (2), and the two second abutment portions (523) are symmetrically placed to each other with respect to the axis of the spindle (2). The two first abutment portions (522) and the two second abutment portions (523) are placed such that a straight line connecting the two first abutment portions (522) and a straight line connecting the two second abutment portions (523) are orthogonal with each other.
    Type: Application
    Filed: January 22, 2008
    Publication date: October 16, 2008
    Applicant: MITUTOYO CORPORATION
    Inventors: Shuji Hayashida, Shozaburo Tsuji