otoshikama　落鎌

KEY WORD :　architecture / joints

Also called sagekama 下鎌. A commonly used half-blind, gooseneck tenon *kama 鎌 and mortise corner joint. The gooseneck-shaped tenon *hozo ほぞ is inserted from above at right angle into an identically shaped mortise *hozoana ほぞ穴. It is commonly used to join beams *nuki 貫, and posts *hashira 柱, and also to connect the upper-most horizontal member of the frame and the vertical stile of a plank-door. One example is a plank-door with narrow horizontal lath stretching from one side to the other at close intervals *mairado 舞良戸.

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*watariago 渡腮

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