shachi 車知
KEY WORD : architecture / joints
 
An abbreviation of shachisen 車知栓. A draw pin, key or cotter made of hard wood, usually zelkova or oak. The pin is long and thin, with a square or circular cross-section. It is driven into the upper and lower parts of a joint, either diagonally or at right angles, to prevent slippage. Often used to secure joints such as the saotsugi 竿継.
 

 
REFERENCES:
*okkake daisentsugi 追掛大栓継, *isukatsugi いすか継
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