JPS55146002A - Measuring unit of inner diameter - Google Patents

Measuring unit of inner diameter

Info

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
Application number
JP5340279A
Other languages
Japanese (ja)
Inventor
Kazuhiro Kawane
Takeshi Tomioka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP5340279A priority Critical patent/JPS55146002A/en
Publication of JPS55146002A publication Critical patent/JPS55146002A/en
Pending legal-status Critical Current

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
JP5340279A 1979-05-02 1979-05-02 Measuring unit of inner diameter Pending JPS55146002A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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