|KEY WORD : architecture / joints|
|Lit. chin gap. One of many types of cogging joints. The joint is used to attach a horizontal timber to the face of a square post or pillar. Cuts are made on two corners on the same side of the post leaving an uncut center section. The horizontal beam has one notch cut out so that it can be pounded in until it is tight against the flat center part between the two notched corners. This beam can hug the pillar as the uncut parts fit into the corner gaps. If the entire width from corner to corner is cut out, and the horizontal beam is inserted into that cut, it is called kirikaki 切欠, or cogging.|
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