JPS57197468A - Wood strength measurer - Google Patents

Wood strength measurer

Info

Publication number
JPS57197468A
JPS57197468A JP8109281A JP8109281A JPS57197468A JP S57197468 A JPS57197468 A JP S57197468A JP 8109281 A JP8109281 A JP 8109281A JP 8109281 A JP8109281 A JP 8109281A JP S57197468 A JPS57197468 A JP S57197468A
Authority
JP
Japan
Prior art keywords
wood
20kgf
weight
rotated
value
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
JP8109281A
Other languages
Japanese (ja)
Inventor
Kenichi Naito
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.)
Shimizu Construction Co Ltd
Original Assignee
Shimizu Construction Co 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 Shimizu Construction Co Ltd filed Critical Shimizu Construction Co Ltd
Priority to JP8109281A priority Critical patent/JPS57197468A/en
Publication of JPS57197468A publication Critical patent/JPS57197468A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/46—Wood

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (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 estimate easily the strength of wood in the field, by measuring the rotation resistance value of a weight to wood. CONSTITUTION:When a handle 16 is turned counterclockwise under the state where a weight 5 bites into a wood 1, a frame body 15 and a scale plate 20 are rotated simultaneously in the same direction. When pressure 20kgf is applied, a needle 23 indicates this value; and when pressure is applied furthermore, a shaft 21 and the weight 5 are rotated together with the frame body 15 through a plate body 17, and the needles 23 is rotated simultaneously with the scale plate 20. Consequently, the shaft 21 is rotated under the state where the needle 23 indicates 20kgf, and 20kgf is the rotation resistance value of the wood. A torque value is obtained by a torque meter 14, thus estimating the strength of the wood.
JP8109281A 1981-05-29 1981-05-29 Wood strength measurer Pending JPS57197468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8109281A JPS57197468A (en) 1981-05-29 1981-05-29 Wood strength measurer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8109281A JPS57197468A (en) 1981-05-29 1981-05-29 Wood strength measurer

Publications (1)

Publication Number Publication Date
JPS57197468A true JPS57197468A (en) 1982-12-03

Family

ID=13736739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8109281A Pending JPS57197468A (en) 1981-05-29 1981-05-29 Wood strength measurer

Country Status (1)

Country Link
JP (1) JPS57197468A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576417A1 (en) * 1985-01-22 1986-07-25 W F G Kamm METHOD AND DEVICE FOR EXAMINING THE STATE OF THE INTERIOR OF A TREE OR WOOD BUILDING ELEMENT
JP2010008258A (en) * 2008-06-27 2010-01-14 Takenaka Komuten Co Ltd Strength evaluation method of wood and repair diagnosing method of structure
JP2010523974A (en) * 2007-04-03 2010-07-15 ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア Improved methods and equipment for material testing
JP2010160077A (en) * 2009-01-08 2010-07-22 Building Research Institute Portable pull-out tester
JP2010271112A (en) * 2009-05-20 2010-12-02 Yoshihisa Fujii Method for evaluating strength of wood and woody material
JP2017078690A (en) * 2015-10-22 2017-04-27 株式会社竹中工務店 Density calculation method of wooden component, and young's modulus calculation method of wooden component

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576417A1 (en) * 1985-01-22 1986-07-25 W F G Kamm METHOD AND DEVICE FOR EXAMINING THE STATE OF THE INTERIOR OF A TREE OR WOOD BUILDING ELEMENT
JP2010523974A (en) * 2007-04-03 2010-07-15 ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア Improved methods and equipment for material testing
JP2010008258A (en) * 2008-06-27 2010-01-14 Takenaka Komuten Co Ltd Strength evaluation method of wood and repair diagnosing method of structure
JP2010160077A (en) * 2009-01-08 2010-07-22 Building Research Institute Portable pull-out tester
JP2010271112A (en) * 2009-05-20 2010-12-02 Yoshihisa Fujii Method for evaluating strength of wood and woody material
JP2017078690A (en) * 2015-10-22 2017-04-27 株式会社竹中工務店 Density calculation method of wooden component, and young's modulus calculation method of wooden component

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