JPS55146002A - Measuring unit of inner diameter - Google Patents
Measuring unit of inner diameterInfo
- Publication number
- JPS55146002A JPS55146002A JP5340279A JP5340279A JPS55146002A JP S55146002 A JPS55146002 A JP S55146002A JP 5340279 A JP5340279 A JP 5340279A JP 5340279 A JP5340279 A JP 5340279A JP S55146002 A JPS55146002 A JP S55146002A
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- scale
- cam
- ring
- groove
- 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
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
PURPOSE: To enable to directly read the groove diameter of the O-ring, by adding the reading of main scale with the reading of the start scale.
CONSTITUTION: D=2A+R-B is established, where D is the groove diameter of O-ring, A is the distance between the center O of the main body 1 to the point P, B is the diameter of the shaft hole engraving the O-ring groove, and R is the diameter of the main body 1. On the other hand, when the triangle OO'P is noticed, from the second formula of cosine, A2=(E2+C2-2C×E×cosθ) is established, where E=OO', θ=∠OO' and P, C are the radius of the cam 2. Accordingly, the cam 2 is lightly turned with the ratchet knob 7 and the tip of the cam 2 is touched on the O-ring groove at the point P, and A can be obtained from the turning angle θ of the cam 2 and D can be obtained. Further, 2A is engraved on the main scale 5, and the value of R-B is engraved as the start scale 4b read in from the inner diameter scale 4a, for direct reading.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5340279A JPS55146002A (en) | 1979-05-02 | 1979-05-02 | Measuring unit of inner diameter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5340279A JPS55146002A (en) | 1979-05-02 | 1979-05-02 | Measuring unit of inner diameter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55146002A true JPS55146002A (en) | 1980-11-14 |
Family
ID=12941827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5340279A Pending JPS55146002A (en) | 1979-05-02 | 1979-05-02 | Measuring unit of inner diameter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55146002A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58106704U (en) * | 1982-01-14 | 1983-07-20 | 日立精機株式会社 | screw depth measuring device |
JP2003083740A (en) * | 2001-09-10 | 2003-03-19 | Bridgestone Flowtech Corp | Screw-inspecting apparatus |
CN103292667A (en) * | 2013-05-24 | 2013-09-11 | 奇瑞汽车股份有限公司 | Tool with internal dial gauge and measuring method |
CN108827120A (en) * | 2018-09-05 | 2018-11-16 | 广西玉柴机器股份有限公司 | A kind of internal groove diameter measuring device |
-
1979
- 1979-05-02 JP JP5340279A patent/JPS55146002A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58106704U (en) * | 1982-01-14 | 1983-07-20 | 日立精機株式会社 | screw depth measuring device |
JPS6318881Y2 (en) * | 1982-01-14 | 1988-05-27 | ||
JP2003083740A (en) * | 2001-09-10 | 2003-03-19 | Bridgestone Flowtech Corp | Screw-inspecting apparatus |
CN103292667A (en) * | 2013-05-24 | 2013-09-11 | 奇瑞汽车股份有限公司 | Tool with internal dial gauge and measuring method |
CN108827120A (en) * | 2018-09-05 | 2018-11-16 | 广西玉柴机器股份有限公司 | A kind of internal groove diameter measuring device |
CN108827120B (en) * | 2018-09-05 | 2024-02-09 | 广西玉柴机器股份有限公司 | Internal groove diameter measuring device |
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