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eriwa@‹έ—Φ
KEY WORD :@architecture / joints
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Also called iriwa “ό—Φ. Lit. a collar ring. A collar tenon. It has a step-like piece called a collar, cut on each side about two-thirds of the distance from the tenon to the edge of the beam. The mortise into which the collar tenon will be attached at right angles is cut from the inner side of a beam. The matching mortise is called eriwa-ana ‹έ—ΦŒŠ (also iriwa-ana “ό—ΦŒŠ). Since the two parts are joined together at right angles, this belongs to the broad category of joinery called *shiguchi ŽdŒϋ. This type of tenon is sometimes combined with haunched tenon *konehozo ¬ͺ‚Ω‚Ό, which has a smaller tenon on the tip of a larger one, used especially when joining wooden parts of mud sills *dodai “y‘δ in a grid pattern. There are many types of collar joints. One further example is the eriwa konehozosashi ‹έ—֏¬ͺ‚Ω‚Ό·, or collared haunch mortise.
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eriwa konehozosashi
‹έ—֏¬ͺ‚Ω‚Ό·
*kai-no-kuchitsugi
ŠL‚ΜŒϋŒp

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NOTES
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(C)2001 Japanese Architecture and Art Net Users System.@No reproduction or republication without written permission.
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