Strength Tests on Kumiko Lattice Tanihata Co,Ltd.

Kumiko Ramma

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組子格子の強度試験結果

Strength Tests on Kumiko Lattice

Regular strength tests are carried out on Kumiko frames and materials

Regular strength tests are conducted on Kumiko frames and materials at the Toyama Forestry and Forest Products Research Centre. Some tests are carried out over a period of one year.

strength tests

Reed Kumiko strength test and certification

Strength tests

Strength tests on the surface of reed Kumiko and lattice

Based on analysis of the strength data, we recommend the use of reed Kumiko and lattice to our customers, especially for families with small children and disabled people who may need Kumiko in specific places.
  Strength test result

Durability Examination of Kumiko placed Outside at Toyama Forestry and Forest Products Research Centre

Durability Examination

Our Kumiko are examined to obtain data, the analysis of which enables us to accurately determine the durability of the produts, even though reference data can be obtained from books. Kumiko of differing wood types were tested outside with weights suspended from them, for one year.
Six lattices made of different materials are tested outside for a year, with 2.6 kg and 5.6 kg blocks attached.
Start 1st March 1999
End 1st March 2000
Materials: Reddish pine, Canadian Cedar, Canadian Cypress, Lophopetalum javanicum (All uncoloured)
Start 1st March 1999
End 1st March 2000

Most Durable material

The excellent durability of lattice made of Canadian Cedar was proven by testing.

The Masu-koushi test on Kumiko frames

The Masu-koushi strength test is performed by placing weights on the surface and edge of the frame. Using the technique of rabbeting, our products prove to have at least twice the strength of products that use nails to hold the components together. Tanihata uphold their policy of high quallity production, and take pride in their high quality products.

Bended destruction

Canadian Cedar 6mm
Lophopetalum avanicum 6mm
Canadian Cedar 5mm

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