糸いと掛かけ

noun

thread guard

A component in spinning machines or similar textile equipment that guides or protects the thread.

• この紡ぼう績せき機きの糸いと掛かけが摩ま耗もうしているので交こう換かんが必ひつ要ようだ。

  The thread guard on this spinning machine is worn and needs replacing.