PROBLEM TO BE SOLVED: To provide a reaping blade device for improving the durability of a clad blade positioned at the center of a stationary blade.SOLUTION: Right and left movable blades (5) having a number of movable blade elements (4) are placed reciprocally slidably in rightward and leftward opposite directions on the upper face side of a stationary blade (3) having a number of stationary elements (1). A central stationary blade (2) having right and left blade edges inclined with respect to the sliding direction of the movable blades (5) is arranged in the transversely central portion of the stationary blade (3). A tip of the central stationary blade (2) is more protruded forward than a tip of the central stationary blade (2), and a guide plate (10) having an edge of a shape substantially same with that of the right and left blade edges of the central stationary blade (2) is installed on the lower surface side of the central stationary blade (2). Moreover, a tip of the guide plate (10) is more protruded forward than that of the central stationary blade (2).COPYRIGHT: (C)2014,JPO&INPIT【課題】固定刈刃の中央に設けられた合わせ刃の耐久性を向上させる。【解決手段】多数の固定刃単体(1)を有する固定刈刃(3)の上面側に、多数の可動刃単体(4)を有する左右の可動刈刃(5)を左右相反する方向へ往復摺動自在に載置し、固定刈刃(3)の左右方向中央部に、可動刈刃(5)の摺動方向に対して傾斜する左右の刃縁を有した中央固定刈刃(2)を配置し、中央固定刈刃(2)の先端部を固定刃単体(1)の先端部よりも前方に突出させ、中央固定刈刃(2)の下面側には該中央固定刈刃(2)の左右の刃縁と略同形状の縁部を有するガイドプレート(10)を設置する。また、ガイドプレート(10)の先端部を中央固定刈刃(2)の先端部よりも前方に突出させる。【選択図】 図2