JPS56137125A - Testing device for constant-speed drop - Google Patents

Testing device for constant-speed drop

Info

Publication number
JPS56137125A
JPS56137125A JP3965480A JP3965480A JPS56137125A JP S56137125 A JPS56137125 A JP S56137125A JP 3965480 A JP3965480 A JP 3965480A JP 3965480 A JP3965480 A JP 3965480A JP S56137125 A JPS56137125 A JP S56137125A
Authority
JP
Japan
Prior art keywords
main lever
driving wheel
rail
speed
flywheel
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
JP3965480A
Other languages
Japanese (ja)
Other versions
JPS628734B2 (en
Inventor
Atsushi Ozaki
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.)
Shinmaywa Industries Ltd
Original Assignee
Shin Meiva Industry 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 Shin Meiva Industry Ltd filed Critical Shin Meiva Industry Ltd
Priority to JP3965480A priority Critical patent/JPS56137125A/en
Publication of JPS56137125A publication Critical patent/JPS56137125A/en
Publication of JPS628734B2 publication Critical patent/JPS628734B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/31—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a rotating fly-wheel

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE:To make the testing device suitable for the case where an accurate uniform motion in a comparatively short distance is required, by rubbing the driving wheel, which rotates while interlocking with the flywheel and rotates in a peripheral speed equal to a desired drop speed of the main lever, against the rail provided on the main lever. CONSTITUTION:Main lever 12 and sample material 5 are supported perpendicularly, and main lever 12 is lifted to the contact starting point or more between rail 13 and driving wheel 14 and is held by stopper 18, and motor 16 is started, and stopper 18 is released after the motor rotation number is so adjusted that the peripheral speed of driving wheel 14 becomes equal to a desired drop speed of sample material 5. When main lever 12 and sample material 5 drop to bring rail 13 into contact with driving wheel 14, the drop speed of main lever 12 is regulated by the inertia force of flywheel 17 till coming-off of rail 13 from driving wheel 14, namely, in a comparatively short distance. Consequently, if the apparent mass of flywheel 17 applied to main lever 12 is set to a sufficiently large value, main lever 12 drops in a constant speed practically in the comparatively short distance.
JP3965480A 1980-03-29 1980-03-29 Testing device for constant-speed drop Granted JPS56137125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3965480A JPS56137125A (en) 1980-03-29 1980-03-29 Testing device for constant-speed drop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3965480A JPS56137125A (en) 1980-03-29 1980-03-29 Testing device for constant-speed drop

Publications (2)

Publication Number Publication Date
JPS56137125A true JPS56137125A (en) 1981-10-26
JPS628734B2 JPS628734B2 (en) 1987-02-24

Family

ID=12559065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3965480A Granted JPS56137125A (en) 1980-03-29 1980-03-29 Testing device for constant-speed drop

Country Status (1)

Country Link
JP (1) JPS56137125A (en)

Also Published As

Publication number Publication date
JPS628734B2 (en) 1987-02-24

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