Detector supporting mechanism

• US 20060101660A1
• Filed: 04/21/2005
• Published: 05/18/2006
• Est. Priority Date: 11/18/2004
• Status: Active Grant

• Current Assignee: Tokyo Seimitsu Company Limited
• Original Assignee: Tokyo Seimitsu Company Limited
• Inventors: Takanashi, Ryo
• Granted Patent: US 7,197,835 B2
• Time in Patent Office: Days
• US Class Current: 33/503
• CPC Class Codes: G01B 5/0002 Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured

Abstract

A detector supporting mechanism comprising a first arm having its one end fixed on a mount linearly movable relative to a workpiece, the first arm having a rotation axis at the other end and a second arm provided on the first arm so as to be turnable on the rotation axis relative to the first arm, a detector being mounted on a tip of the second arm, wherein the rotation axis is provided on a plane inclined at an angle of 45° from the movement axis of the mount while being inclined at an angle of 45° from the movement axis of the mount in a projection on a plane which is inclined at an angle of 45° from the plane inclined at an angle of 45° from the movement axis of the mount, and which contains the movement axis of the mount, and wherein an axis of the detector mounted on the second arm intersects the rotation axis.

Claims

1. A detector supporting mechanism comprising:

a first arm having its one end fixed on a mount linearly movable relative to a workpiece, the first arm having a rotation axis at the other end; and

a second arm provided on the first arm so as to be turnable on the rotation axis relative to the first arm, a detector being mounted on a tip of the second arm,

wherein the rotation axis is provided on a plane inclined at an angle of 45°

from the movement axis of the mount while being inclined at an angle of 45°

from the movement axis of the mount in a projection on a plane which is inclined at an angle of 45°

from the plane inclined at an angle of 45°

from the movement axis of the mount, and which contains the movement axis of the mount, and

wherein an axis of the detector mounted on the second arm intersects the rotation axis.

2. The detector supporting mechanism according to claim 1, wherein the detection direction of the detector is changed from one direction to another direction perpendicular by turning the second arm through an angle of 120°

.

3. The detector supporting mechanism according to claim 1, wherein the detector is mounted so that the point of detection by the detector is at a certain distance from the movement axis of the mount.

4. The detector supporting mechanism according to claim 2, wherein the detector is mounted so that the point of detection by the detector is at a certain distance from the movement axis of the mount.

5. The detector supporting mechanism according to claim 2, wherein if the detector is mounted so that the point of detection by the detector coincides with a point on the rotation axis, the detection point is not moved even when the detection direction is changed to the perpendicular direction by turning the second arm through an angle of 120°

.

6. The detector supporting mechanism according to claim 2, further comprising:

a drive device which drives and turns the second arm about the rotation axis to automatically change the detection direction of the detector.

7. The detector supporting mechanism according to claim 5, further comprising:

a drive device which drives and turns the second arm about the rotation axis to automatically change the detection direction of the detector.