A rotary lawnmower (10) includes a shutter (40) for switching a location to which grass cut by the blade (14) is to be discharged, and a shutter operating mechanism (50) for operating the shutter. The shutter operating mechanism (50) has a first shaft (51), a second shaft (52), a first link arm (53), and a second link arm (54), a third link arm (55), and an operating lever (61). The first shaft (51) is positioned on the housing (11). The first link arm (53) is capable of swinging about the first shaft (51) and has the operating lever (61). The second shaft (52) is positioned adjacent to and parallel to the first shaft (51), is rotatably attached to the housing (11), and is linked to the shutter (40) via the third link arm (55). The second link arm (54) is attached to the second shaft (52) so that relative rotation is restricted, whereby the second link arm can swing about the second shaft (52), and is swing-driven by the first link arm (53).一種旋轉式割草機(10)包括一用於切換由刀片(14)割下之草排出至的一位置之擋板(40)及一用於操作該擋板之擋板操作機構(50)。該擋板操作機構(50)具有一第一軸(51)、一第二軸(52)、一第一連桿臂(53)及一第二連桿臂(54)、一第三連桿臂(55)及一操作桿(61)。該第一軸(51)定位於該外殼(11)上。該第一連桿臂(53)能夠圍繞該第一軸(51)擺動,且具有該操作桿(61)。該第二軸(52)經鄰近且平行於該第一軸(51)定位、可旋轉地附接至該外殼(11)且經由該第三連桿臂(55)連結至該擋板(40)。該第二連桿臂(54)附接至該第二軸(52),使得相對旋轉受到限制,藉此該第二連桿臂可圍繞該第二軸(52)擺動,且由該第一連桿臂(53)擺動驅動。40...擋板41...旋轉板42...擋板體42a...水平部分42b...垂直部分42c...在水平部分與垂直部分之間的角落50...擋板操作機構51...第一軸52...第二軸53...第一連桿臂54...第二連桿臂55...第三連桿臂56...第一連結銷57...第二連結銷61...操作桿62...水平支撐軸63...槓桿近端部件64...槓桿部分65...手柄71...操作導引部分72...後壁板73...長、細導引孔/長形導引孔73a...下邊緣74...定位凹槽Bu...裝袋位置Mu...覆蓋位置Sc...輸出軸之軸心
