Surface texture measurement apparatus and roundness...

Details Surface texture measurement apparatus and roundness... Surface texture measurement apparatus and roundness...

2011-05-31

2011-05-31

Guadalupe-McCall, Yaritza (Department: 2841)

Geometrical instruments

Gauge

Having a movable contact probe

C033S559000

Reexamination Certificate

active

07950164

ABSTRACT:
A roundness measuring apparatus includes: a stylus having a contact part; a holding member that holds the stylus while allowing displacement of the contact part; an elastic member that presses the contact part against a measurement target object; a detector holder that supports the holding member rotatably; a motor; an elastic force adjustment member that is rotatable and concentric with the holding member; a joining section that joins the elastic force adjustment member with the holding member to maintain relative rotational positions; and a restricting section that restricts rotation of the elastic force adjustment member at a predetermined rotational position. The displacement direction of the contact part is adjusted in a first rotation range. The rotational position of the holding member relative to the rotational position of the elastic force adjustment member changes with the rotation of the elastic force adjustment member being restricted in a second rotation range.

REFERENCES:
patent: 6-300505 (1994-10-01), None
patent: 2007-071726 (2007-03-01), None

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