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Two axis touch probe

  • US 4,542,590 A
  • Filed: 03/26/1984
  • Issued: 09/24/1985
  • Est. Priority Date: 03/26/1984
  • Status: Expired due to Fees
First Claim
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1. In a touch probe having a stylus, a housing and an axis common thereto, apparatus for mounting the stylus for movement relative to the housing comprising:

  • a first member movable relative to the housing and capable of being coupled to the stylus;

    a second member fixed relative to the housing;

    means defining a line contact on one of the first and second members extending along a direction normal to the common axis;

    first and second contact elements protruding from the other one of the first and second members, each contact element abutting in substantially point contact fashion the line contact in a rest position for the first member; and

    constraining means including at least two axially spaced resilient members each coupled at one of their ends to the movable member and at their opposite ends to the fixed member, each of said resilient members extending generally in the same direction normal to said common axis, said constraining means being operative to prevent all motion of the first member relative to the second member except for linear motion parallel to the common axis and pivotal motion in planes parallel to both the common axis and the line contact.

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