A clutch mechanism includes a clutch pin, a pinion gear, a first bearing, a second bearing and a clearance adjusting part. The pinion gear is axially movable to an on-position that causes the pinion gear to engage with the clutch pin and be unitarily rotatable with the spool shaft and an off-position that causes the pinion gear to disengage from the clutch pin. The first bearing is disposed on an outer peripheral surface of a first support part of the pinion gear. The second bearing is disposed on an outer peripheral surface of a second support part of the pinion gear. The clearance adjusting part is configured to partially reduce a clearance between an inner peripheral surface of a through hole and the outer peripheral surface of the spool shaft at the clearance adjusting part in an on-state of the clutch mechanism.在線捲取時負荷即使變動仍可抑制離合器銷及卡合部之間間歇地接觸。離合器機構(13),是具備離合器銷(20)、小齒輪(32)、第1軸承(38a)、第2軸承(38b)及間隙調整部(13a)。離合器銷(20)是將捲筒軸(16)朝徑方向貫通地配置。小齒輪(32),可朝:卡合於離合器銷(20)且成為可與捲筒軸(16)一體旋轉的導通(ON)位置、及與離合器銷(20)的卡合被解除的斷開(OFF)位置可軸方向移動。第1軸承(38a),是被配置於小齒輪(32)的捲筒(12)側的第1支撐部(32a)的外周面,將小齒輪(32)可旋轉自如且可軸方向移動地支撐於捲線器本體(1)用者。第2軸承(38b),是被配置於第1端部相反側的第2端部的外周面,將小齒輪(32)可旋轉自如且可軸方向移動地支撐於捲線器本體(1)用者。間隙調整部(13a)是設在捲筒軸(16)的外周面,導通(ON)狀態中的內周面及捲筒軸(16)的外周面的間隙(D)是部分較小。C‧‧‧捲筒軸芯D‧‧‧間隙D1、D2‧‧‧外徑13‧‧‧離合器機構13a‧‧‧間隙調整部16‧‧‧捲筒軸16a‧‧‧第1軸部16b‧‧‧第2軸部20‧‧‧離合器銷24b‧‧‧軸承32‧‧‧小齒輪32a‧‧‧第1支撐部32b‧‧‧齒輪部32c‧‧‧頸部32d‧‧‧第2支撐部32e‧‧‧卡合溝32f‧‧‧離合器卡合部32g‧‧‧貫通孔32h‧‧‧第1孔部32i‧‧‧第2孔部38a‧‧‧第1軸承38b‧‧‧第2軸承42‧‧‧隔片
