JPS5522147A - Dent hardness meter - Google Patents

Dent hardness meter

Info

Publication number
JPS5522147A
JPS5522147A JP9520578A JP9520578A JPS5522147A JP S5522147 A JPS5522147 A JP S5522147A JP 9520578 A JP9520578 A JP 9520578A JP 9520578 A JP9520578 A JP 9520578A JP S5522147 A JPS5522147 A JP S5522147A
Authority
JP
Japan
Prior art keywords
load
frame
shaft
moved down
sample surface
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.)
Granted
Application number
JP9520578A
Other languages
Japanese (ja)
Other versions
JPS5712455B2 (en
Inventor
Shozo Iwasaki
Yoshiyuki Miyashita
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.)
Akashi Seisakusho KK
Original Assignee
Akashi Seisakusho KK
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 Akashi Seisakusho KK filed Critical Akashi Seisakusho KK
Priority to JP9520578A priority Critical patent/JPS5522147A/en
Publication of JPS5522147A publication Critical patent/JPS5522147A/en
Publication of JPS5712455B2 publication Critical patent/JPS5712455B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE: To automatically and accurately accomplish the size reading operations by sandwitching a plurality of load springs between a load frame and a load shaft in a concentric manner and in a selectively loadable manner so that the load is applied and released by the upward and downward movements of the load frame.
CONSTITUTION: In order to meter the hardness of a sample 4, if a driven portion 13a is pushed in the direction of arrow A, a load frame 9 and load shaft 8 are moved down so that a metering frame 1 and a pressure shaft 5 are accordingly moved down. Then, a pressure element 5a abuts against a sample surface 4a, and the load frame 9 is moved down to separate a support ring 17 and the frame 1. At this time, the sample surface 4a is preloaded with a preload F1. If, moreover, a force is applied in the direction A, the frame 9 and the shaft 8 are moved down together. when the lower end of the shaft 8 abuts against a spring receiver 6, the shaft 8 leaves the frame 9 so that the spring pressures of load springs 24 and 25 are applied to the sample surface 4a through the pressure element 5a. At this time, a test load F2 is applied to the surface 4a.
COPYRIGHT: (C)1980,JPO&Japio
JP9520578A 1978-08-04 1978-08-04 Dent hardness meter Granted JPS5522147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9520578A JPS5522147A (en) 1978-08-04 1978-08-04 Dent hardness meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9520578A JPS5522147A (en) 1978-08-04 1978-08-04 Dent hardness meter

Publications (2)

Publication Number Publication Date
JPS5522147A true JPS5522147A (en) 1980-02-16
JPS5712455B2 JPS5712455B2 (en) 1982-03-11

Family

ID=14131238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9520578A Granted JPS5522147A (en) 1978-08-04 1978-08-04 Dent hardness meter

Country Status (1)

Country Link
JP (1) JPS5522147A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624550A (en) * 1979-08-07 1981-03-09 Citizen Watch Co Ltd Measuring device for hardness

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624550A (en) * 1979-08-07 1981-03-09 Citizen Watch Co Ltd Measuring device for hardness
JPS6236168B2 (en) * 1979-08-07 1987-08-05 Citizen Watch Co Ltd

Also Published As

Publication number Publication date
JPS5712455B2 (en) 1982-03-11

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