PROBLEM TO BE SOLVED: To provide a waterproof structure in which water is hard to enter between a storage part for storing one-way clutch of a spinning reel and a rotor.SOLUTION: A rotor drive waterproof structure includes: a pinion gear 3 for constituting a drive shaft to rotate a rotor 11 fixed to a front end a reel body 1, a storage member 4 and a lid member 6 for rotatably supporting the pinion gear 3 around a rotation center of the drive shaft, having an opening for inserting the pinion gear 3, and storing a rear end of the pinion gear 3 and the one-way clutch 5 an annular projection 84 provided at a peripheral edge of a rotor facing surface of the lid member 6, and projected to the rotor 11 side over the whole circumference around the rotation center and an annular projection 121 and an annular projection 122 provided in an inner circumferential wall 120 of the rotor 11 while being radially spaced apart from the annular projection 84, and projected to the side of the lid member 6 over the whole circumference around the rotation center. An axial spacing between the tip of the annular projection 84 and the inner circumferential wall 120 is not more than the axial height between the annular projection 121 and the annular projection 122.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2018,JPO&INPIT【課題】スピニングリールの一方向クラッチを収容する収容部とロータとの間に水が浸入しにくくする防水構造の提供。【解決手段】ロータ駆動部防水構造は、前端に固定されたロータ11を回転させる駆動軸を構成するピニオンギア3と、ピニオンギア3を駆動軸の回転中心の周りに回転可能に支持し、ピニオンギア3を挿通する開口を有し、ピニオンギア3の後端および一方向クラッチ5を収容するリール本体1、収容部材4および蓋部材6と、蓋部材6のロータ対向面の外周端部に設けられ、回転中心の周りの全周に亘ってロータ11の側に突出する環状突起84と、環状突起84と半径方向に間隔を隔てて、ロータ11の内周壁120に設けられ、回転中心の周りの全周に亘って蓋部材6の側に突出する環状突起121および環状突起122と、を備え、環状突起84の先端と内周壁120との軸方向の間隔は、環状突起121および環状突起122の軸方向の高さ以下である。【選択図】図2
