PROBLEM TO BE SOLVED: To provide a braking plate assembly for a drag mechanism in which a drag force can be improved and a weight can be reduced simultaneously.SOLUTION: A first braking plate assembly 51 and a fourth braking plate assembly 54 include a first plate element 61 and a second plate element 62, respectively. A first joining surface 61a of the first plate element 61 and a second joining surface 62a of the second plate element 62 are connected with each other. Specifically, the first braking plate assembly 51 and the fourth braking plate assembly 54 function as the braking plate of a single body, respectively. Also, the wear resistance of the second plate element 62 is higher than that of the first plate element 61, so that a lining material can be brought into frictional contact with the second plate element 62.【課題】ドラグ力の向上及び軽量化を同時に実現可能なドラグ機構用の制動板組を、提供することにある。【解決手段】第１制動板組５１及び第４制動板組５４それぞれは、第１板要素６１と、第２板要素６２とを、備えている。第１板要素６１の第１接合面６１ａと第２板要素６２の第２接合面６２ａとが、互いに接合される。すなわち、第１制動板組５１及び第４制動板組５４それぞれが、単体の制動板として機能する。また、第２板要素６２の耐摩耗性が第１板要素６１より高いので、第２板要素６２にはライニング材が摩擦接触可能である。【選択図】図３
