wanagikomi　輪薙込

KEY WORD :　architecture / joints

Wanagikomi is an angle joint also called an open mortise and tenon joint, a slip slot or finger mortise. It consists of tie beam *hari 梁, with an open mortise cut deep enough to receive the full breadth of a rafter and narrow enough to allow a tight fit when the rafter is inserted. The combination of king posts *shinzuka 真束, with tops cut with finger joints and the ridge pole *munagi 棟木, inserted into them is called wanagikomi watariago 輪薙込渡腮. This method is also used in Western construction. Another example of this joint is when a penetrating tie beam *hinuki 飛貫, is joined to a pillar. The wanagikomi method is used in the kyouro system *kyourogumi 京呂組, of roof framing.

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