JPS54130152A - Micrometer - Google Patents
MicrometerInfo
- Publication number
- JPS54130152A JPS54130152A JP3769878A JP3769878A JPS54130152A JP S54130152 A JPS54130152 A JP S54130152A JP 3769878 A JP3769878 A JP 3769878A JP 3769878 A JP3769878 A JP 3769878A JP S54130152 A JPS54130152 A JP S54130152A
- Authority
- JP
- Japan
- Prior art keywords
- spindle
- vernier
- main scale
- moved
- scale
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
PURPOSE: To obtain a digital micrometer of a small size and good operating characteristic by contacting an engaging member of a spindle and feed nut and a guide member parallel to the spindle at two points and defining the turning direction of the spindle.
CONSTITUTION: When a knob 8 is rotated, the multithread screw applied to a feed shaft 7 turns and a feed nut 10 moves in the axial direction, causing a spindle 2 supported to a scale holder 11 to be moved by a lift arm 13. The measuring object is then inserted into the gap 36 between the spindle and an anvil 3. At this time, the main scale 25 is moved with respect to the vernier 26 along a guide bar 5 by the spindle 2 and the parallel rays radiated from a light emitting element 19 via lens 22 transmit through the main scale 25. The transmitted light reaches photo detectors 34, 35 via the vernier 26, and the electrical outputs corresponding to the relative displacement quantity between the main scale 25 and vernier 26 are obtained thereby and may therefore be digitally displayed by a suitable display device.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3769878A JPS54130152A (en) | 1978-03-31 | 1978-03-31 | Micrometer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3769878A JPS54130152A (en) | 1978-03-31 | 1978-03-31 | Micrometer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54130152A true JPS54130152A (en) | 1979-10-09 |
Family
ID=12504752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3769878A Pending JPS54130152A (en) | 1978-03-31 | 1978-03-31 | Micrometer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54130152A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004109223A1 (en) * | 2003-06-09 | 2004-12-16 | Mitutoyo Corporation | Measuring instrument |
EP1746382A2 (en) | 2005-07-22 | 2007-01-24 | Mitutoyo Corporation | Measurement instrument |
-
1978
- 1978-03-31 JP JP3769878A patent/JPS54130152A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004109223A1 (en) * | 2003-06-09 | 2004-12-16 | Mitutoyo Corporation | Measuring instrument |
US7043852B2 (en) | 2003-06-09 | 2006-05-16 | Mitutoyo Corporation | Measuring instrument |
JPWO2004109223A1 (en) * | 2003-06-09 | 2006-07-20 | 株式会社ミツトヨ | Measuring instrument |
JP4533314B2 (en) * | 2003-06-09 | 2010-09-01 | 株式会社ミツトヨ | Measuring instrument |
EP1746382A2 (en) | 2005-07-22 | 2007-01-24 | Mitutoyo Corporation | Measurement instrument |
US7321231B2 (en) | 2005-07-22 | 2008-01-22 | Mitutoyo Corporation | Measurement instrument |
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