A rotor brake mechanism includes a braking member, a moving member, an elastic member, and an adjustment member. The braking member is disposed in a reel body. The moving member is disposed in a rotor to move to a first position corresponding to a line-winding posture and a second position corresponding to a line-releasing posture, in conjunction with a bail arm, and includes an extended portion that extends toward the braking member when the moving member moves to the second position. The elastic member is disposed on the extended portion of the moving member, and comes into contact with an outer peripheral surface of the braking member when the moving member moves to the second position. The adjustment member is disposed between the extended portion of the moving member and the elastic member, and adjusts a position of the elastic member.本發明之課題在於，於紡車式捲線器的轉子制動裝置中，謀求制動力之穩定化。 轉子制動裝置6具備制動構件21、移動構件15、彈性構件22、及調整構件23。制動構件21安裝於捲線器本體1。移動構件15係以可與導環臂連動而獲得對應於線捲取姿勢之第1位置與對應於線釋放姿勢之第2位置之方式配置於轉子3，且具有於移動至第2位置時向制動構件突出之第1突出部15a。彈性構件22安裝於移動構件15之第1突出部15a，於移動構件15移動至第2位置時與制動構件21之外周面接觸。調整構件23配置於移動構件15之突出部15a與彈性構件22之間，調整彈性構件22之位置。
