A gear mechanism for a fishing reel includes a drive gear, a handle, and a vibration damper. The drive gear includes a gear having a prescribed gear diameter, and a drive gear shaft rotated together with the gear and having a smaller dimension than the prescribed gear diameter. The handle rotates the drive gear shaft. The vibration damper is disposed between the drive gear shaft and the handle, and dampens the transmission of the vibration of the drive gear.本發明之課題在於：於釣具捲線器的齒輪機構中，藉由使傳遞至手柄臂之因齒輪之嚙合引起之振動衰減，而謀求提昇旋轉感。 釣具捲線器的齒輪機構6具備驅動齒輪20、手柄部7、及減振部25。驅動齒輪20包含具有特定齒輪直徑之齒輪部16、及與齒輪部16一併旋轉且直徑小於特定齒輪直徑之驅動齒輪軸15。手柄部7使驅動齒輪軸15旋轉。減振部25設置於驅動齒輪軸15與手柄部7之間，使驅動齒輪20之振動之傳遞衰減。
