| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of the conventional touch sensors that accurate positional information for an object which is to be measured, for example a spherical end mill, can be acquired only when the spherical end mill evenly contacts the bevel of a conical hole of a contact, however, then it is very difficult to make the centerline of conical hole coincide with the centerline of a spherical end mill E. SOLUTION: A floating means is provided for translation relative to a reference surface 1a, using a plurality of balls 7 when the object E, for example a spherical end mill, vertically falls to the reference surface 1a and beings to contact a conical hole surface 9a of a contact 9. Thus, the object E contacts the conical hole surface 9a evenly, while as the object E pressurizes/displaces the contact 9, the sliding axis 2 slides downward to actuate a switch means provided inside a housing 1, for transmitting an electrical signal.
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