shachi 車知

Keywords
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.