炬こ燵たつやぐらこたつやぐらじ字FuriganaMeanings1nounsquare wooden frame for a kotatsuA low, square, latticed wooden frame placed over a kotatsu heater, often used as a table or to support a futon.See also: 櫓 (やぐら)冬ふゆになると、炬こ燵たつやぐらを出だしてこたつを準じゅん備び