JPS571901A - Measuring apparatus for diameter and width of stepped deep hole or groove - Google Patents

Measuring apparatus for diameter and width of stepped deep hole or groove

Info

Publication number
JPS571901A
JPS571901A JP7426880A JP7426880A JPS571901A JP S571901 A JPS571901 A JP S571901A JP 7426880 A JP7426880 A JP 7426880A JP 7426880 A JP7426880 A JP 7426880A JP S571901 A JPS571901 A JP S571901A
Authority
JP
Japan
Prior art keywords
scale
groove
width
graded
hole
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
JP7426880A
Other languages
Japanese (ja)
Inventor
Masanori Murata
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7426880A priority Critical patent/JPS571901A/en
Publication of JPS571901A publication Critical patent/JPS571901A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/20—Slide gauges

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

PURPOSE:To simply and accurately measure the diameter and width a of hole or groove of small dimension provided in a deep groove bottom, by combining a one- way grade scale and a vernier. CONSTITUTION:A one-way graded scale 2 is slidably fitted in the groove in a measuring reference part 1. A graded part 2b is formed at the end of the scale 2, and on the side opposite thereto, a scale of dimension whose one part is l/(h2- h1)mm. and numerals corresponding to the heights of the grade are marked, where l is the length of the graded part 2b, h2 is the width of the end base of the graded part 2b and h1 is the width of the of the graded part 2b. With the end surface 2a of the scale contacted with the groove bottom 10a of the object to be measured, a female screw 5 is rotated to slide a vernier 3, and a scale S1 of the scale 2 is read. With the scale graded part 2b inserted into a hole (groove) 10b, a scale S2 is read. The dimension of the hole (groove) can be calculated from S2-S1. Thereby, the dimension of the hole or groove of small dimension in the deep groove bottom can be measured simply and accurately.
JP7426880A 1980-06-04 1980-06-04 Measuring apparatus for diameter and width of stepped deep hole or groove Pending JPS571901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7426880A JPS571901A (en) 1980-06-04 1980-06-04 Measuring apparatus for diameter and width of stepped deep hole or groove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7426880A JPS571901A (en) 1980-06-04 1980-06-04 Measuring apparatus for diameter and width of stepped deep hole or groove

Publications (1)

Publication Number Publication Date
JPS571901A true JPS571901A (en) 1982-01-07

Family

ID=13542198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7426880A Pending JPS571901A (en) 1980-06-04 1980-06-04 Measuring apparatus for diameter and width of stepped deep hole or groove

Country Status (1)

Country Link
JP (1) JPS571901A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031002A (en) * 1983-07-29 1985-02-16 Hino Motors Ltd Instrument for measuring width of snap-ring attaching groove
JPH0630704U (en) * 1992-09-25 1994-04-22 株式会社中村製作所 Calipers for measuring inner diameters
JP2006201048A (en) * 2005-01-21 2006-08-03 Hit Kogyo Kk Measuring instrument and method for manufacturing it
JP2021060215A (en) * 2019-10-03 2021-04-15 日本車輌製造株式会社 Nozzle diameter measuring gauge, nozzle diameter measuring apparatus, and nozzle diameter measuring method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031002A (en) * 1983-07-29 1985-02-16 Hino Motors Ltd Instrument for measuring width of snap-ring attaching groove
JPH0630704U (en) * 1992-09-25 1994-04-22 株式会社中村製作所 Calipers for measuring inner diameters
JP2006201048A (en) * 2005-01-21 2006-08-03 Hit Kogyo Kk Measuring instrument and method for manufacturing it
JP4492801B2 (en) * 2005-01-21 2010-06-30 ヒット工業株式会社 Measuring instrument and manufacturing method thereof
JP2021060215A (en) * 2019-10-03 2021-04-15 日本車輌製造株式会社 Nozzle diameter measuring gauge, nozzle diameter measuring apparatus, and nozzle diameter measuring method

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