A fan-shaped piece of wood made by splitting a log in four and removing the heartwood. In the past, it was used as the heartwood for walls, with standard measurements of 12 shaku (363 cm) in length, 6 sun (18.2 cm) in width, and 4 sun (12 cm) in thickness, but in the early modern period, it came to be used nationwide as roofing board material. The material and specifications are not the same depending on the mine from which it is mined, but since it began to be produced as a substitute for annual tax in the Chubu region, where it is inconvenient to transport, especially in the Shinano and Ina regions, it gradually became shorter and the wood species became more common. [Asai Junko] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
丸太を四つ割にして心材を取り去った扇形の材。古くは長さ1丈2尺(363センチメートル)、幅6寸(18.2センチメートル)、厚さ4寸(12センチメートル)を定尺として壁の心材に使用されたが、近世に入ってからは、屋根板材として全国で用いられるようになった。素材と規格は採出山によって同一ではないが、主として搬出不便な中部地方、とくに信濃(しなの)伊那(いな)地方で年貢のかわりに生産されるようになってからは、しだいに短くなり、樹種もサワラが多くなった。 [浅井潤子] 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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