| 摘要 |
PROBLEM TO BE SOLVED: To surely align the axis of a hole to be measured and the axis of a contact stem on the measuring apparatus side in a dimension measuring apparatus which measures a depth location of the hole having a cone surface, for example. SOLUTION: The apparatus for measuring dimensions comprises a linear dimension measuring device 50 equipped with a spindle 51; the contact stem 60 having a spherical tip 64 which contacts with an object to be measured 10; a stem-holding device 70 for holding the contact stem 60; and a driving section 90 for reciprocating the linear dimension measuring device 50 and the stem holding device 70. The stem-holding device 70 is equipped with: a bearing member 71 for supporting the contact stem 60 so as to be movable along the direction of a measurement axis Ax; a forcing means 75 for forcing the contact stem 60 and the bearing member 71, in respective directions that are opposite to each other; a thrust support member 76 having a thrust support plane 78a which faces one edge 72a of the bearing member 71 in parallel; and a plurality of spherical members 80, disposed between the thrust supporting plane 78a and the one edge 72a of the bearing member. COPYRIGHT: (C)2008,JPO&INPIT
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