A spool access mechanism of a dual-bearing reel includes a frame, a spool support portion, a first side cover and a cover opening/closing portion. The frame includes an opening portion. The frame is formed in a substantially circular shape. The spool support portion is mounted to an interior of the frame. The spool support portion supports a spool in a rotatable state. The first side cover is allowed to be disposed in the opening portion of the frame. The cover opening and closing portion is disposed between the spool and the first side cover in the interior of the frame. The cover opening and closing portion is engaged with the spool support portion and the first side cover, and opens and closes the first side cover.[課題]對於雙軸承捲線器,達成捲線器本體的輕小化。[技術內容]雙軸承捲線器(10)的捲筒檢修機構(30),是具備:框架(17)、及捲筒支撐部(15)、及第1側蓋(18a)、及蓋開閉部(16)。框架(17),是具有開口部(27c)。框架(17)的形狀,是實質上圓形。捲筒支撐部(15),是被裝設於框架(17)的內部。捲筒支撐部(15),是將捲筒(14)可旋轉地支撐。第1側蓋(18a),是可配置於框架(17)的開口部(27c)。蓋開閉部(16),是在框架(17)的內部被配置於捲筒(14)及第1側蓋(18a)之間。蓋開閉部(16),是卡合於捲筒支撐部(15)及第1側蓋(18a),可將第1側蓋(18a)開閉。15‧‧‧捲筒支撐部16‧‧‧蓋開閉部17‧‧‧框架(框架本體的一例)17a‧‧‧第1側板部18a‧‧‧第1側蓋部(蓋部的一例)18d‧‧‧開口部19‧‧‧裝卸部19b‧‧‧操作調整鈕20b‧‧‧煞車塊27b‧‧‧筒狀部27c‧‧‧開口部27d‧‧‧卡口溝29‧‧‧裝卸單元30‧‧‧捲筒檢修機構35b‧‧‧制動器收納部35d‧‧‧抵接部50‧‧‧蓋開放機構60‧‧‧異物侵入防止構造115e‧‧‧窗部118d‧‧‧制動操作部128a‧‧‧孔部
