A bail support mechanism includes a bail support member (2), a striking member (4), a biasing member (5), and an abutting surface. The abutting surface includes a first portion (24), a second portion, a stepped portion (26), and a sliding portion (27). The first portion (24) is a portion that the striking member (4) abuts when in the line guiding position. The second portion is a portion that the striking member (4) abuts when in the line releasing position. The stepped portion (26) is disposed between the first portion (24) and the second portion and has an apex (261). The sliding portion (27) extends continuously from the first portion (24) to the apex (261).本發明之課題在於圓滑進行導環支持構件之搖動。本發明之導環支持機構10具備第1導環支持構件2、撞擊構件4、彈簧構件5、及抵接面23。抵接面23具有第1部24、第2部25、階差部26、及滑動部27。第1部24係於線引導姿勢時供撞擊構件4抵接之部分。第2部25係於線釋放姿勢時供撞擊構件4抵接之部分。階差部26係設置於第1部24與第2部25之間。滑動部27係於第1部24與頂點部261之間連續延伸。
