JPS5548610A - Dial indicator - Google Patents
Dial indicatorInfo
- Publication number
- JPS5548610A JPS5548610A JP12239978A JP12239978A JPS5548610A JP S5548610 A JPS5548610 A JP S5548610A JP 12239978 A JP12239978 A JP 12239978A JP 12239978 A JP12239978 A JP 12239978A JP S5548610 A JPS5548610 A JP S5548610A
- Authority
- JP
- Japan
- Prior art keywords
- frame
- spring
- groove
- support frame
- rotary motion
- 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
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
PURPOSE: To prevent the intrusion of the foreign matters with a simple constitution by providing the grooves opposing to each other at the lower part of the outer circumference of the outside support frame as well as on the inner circumference surface of the inside support frame and thus mounting with pressure the circular spring of a polygonal shape.
CONSTITUTION: In case outside support frame 14 has the rotary motion to inside support frame 11, the frictional resistance between groove bottom surface 11j and top part 16b of circular spring 16 formed into a polygonal shape with a partial cut is larger than that between linear part 16a of spring 16 and bottom surface 14j and slope part 14k of the groove of frame 13. Accordingly, spring 16 has no rotary motion together with frame 14. But the tension of spring 16 is applied evenly to the inner circumference of frame 11, and as a result an appropriate gap is secured between outer circumference surface 14f of frame 14 and inner circumference surface of frame 11. And thus the rotary friction means the sum of the sliding friction between step surface 14e of frame 14 and step surface 11e of frame 11 and the sliding friction between spring 16 and the groove of frame 14. In this connection, the intrusion of the foreign matters can be prevented without imparing the smooth rotary motion of both frames 14 and 11 by controlling properly the tension cuased when spring 16 is mounted into the groove with variation of the vertical angle of spring 16.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12239978A JPS5548610A (en) | 1978-10-03 | 1978-10-03 | Dial indicator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12239978A JPS5548610A (en) | 1978-10-03 | 1978-10-03 | Dial indicator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5548610A true JPS5548610A (en) | 1980-04-07 |
Family
ID=14834821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12239978A Pending JPS5548610A (en) | 1978-10-03 | 1978-10-03 | Dial indicator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5548610A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5253139A (en) * | 1989-10-31 | 1993-10-12 | Kabushiki Kaisha Toshiba | Portable electronic apparatus having a detachable display unit and a socket lid |
US5603283A (en) * | 1994-12-15 | 1997-02-18 | Delco Electronics Corporation | Illuminated snap-on gauge pointer assembly |
US6956211B2 (en) | 2002-09-11 | 2005-10-18 | Hitachi High-Technologies Corporation | Charged particle beam apparatus and charged particle beam irradiation method |
US7355174B2 (en) | 2004-06-28 | 2008-04-08 | Hitachi High-Technologies Corporation | Charged particle beam emitting device and method for adjusting the optical axis |
US7381951B2 (en) | 2004-08-30 | 2008-06-03 | Hitachi High-Technologies Corporation | Charged particle beam adjustment method and apparatus |
US8143573B2 (en) | 2008-06-26 | 2012-03-27 | Hitachi High-Technologies Corporation | Charged particle beam apparatus |
-
1978
- 1978-10-03 JP JP12239978A patent/JPS5548610A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5253139A (en) * | 1989-10-31 | 1993-10-12 | Kabushiki Kaisha Toshiba | Portable electronic apparatus having a detachable display unit and a socket lid |
US5603283A (en) * | 1994-12-15 | 1997-02-18 | Delco Electronics Corporation | Illuminated snap-on gauge pointer assembly |
US6956211B2 (en) | 2002-09-11 | 2005-10-18 | Hitachi High-Technologies Corporation | Charged particle beam apparatus and charged particle beam irradiation method |
US7282722B2 (en) | 2002-09-11 | 2007-10-16 | Hitachi High-Technologies Corporation | Charged particle beam apparatus and charged particle beam irradiation method |
US7355174B2 (en) | 2004-06-28 | 2008-04-08 | Hitachi High-Technologies Corporation | Charged particle beam emitting device and method for adjusting the optical axis |
US7381951B2 (en) | 2004-08-30 | 2008-06-03 | Hitachi High-Technologies Corporation | Charged particle beam adjustment method and apparatus |
US8143573B2 (en) | 2008-06-26 | 2012-03-27 | Hitachi High-Technologies Corporation | Charged particle beam apparatus |
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