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    • 3. 发明授权
    • Mower deck height adjustment mechanism
    • 割草机高度调节机构
    • US5381648A
    • 1995-01-17
    • US68829
    • 1993-05-28
    • Brian D. SeegertDaniel A. SebbenRichard D. Teal
    • Brian D. SeegertDaniel A. SebbenRichard D. Teal
    • A01D34/64A01D34/74
    • A01D34/74A01D34/64A01D2101/00
    • A lift mechanism for adjusting the height of a mower deck includes a pivotable lift handle, a toothed member carried by the vehicle, and a rod-like member pivotally carried by the lift handle. A first portion of the rod engages the toothed member for maintaining the lift handle and mower deck at selected positions. A second portion of the rod radially offset from the first portion defines the axis about which the rod pivots during operation. First and second arcuate slots receive the first and second portions of the rod. The arc of the first slot has its center at a first position within the second slot, and the arc of the second slot has its center at a first position within the first slot. A blocking member carried by the lift handle is abuttable with the rod for preventing the first portion from pivoting to the first position whereat the second portion can pivot out of the second slot.
    • 用于调节割草机高度的升降机构包括可枢转提升手柄,由车辆承载的齿形构件和由提升手柄枢轴承载的杆状构件。 杆的第一部分接合齿形构件,用于将升降手柄和割草机甲板保持在选定位置。 径向偏离第一部分的杆的第二部分限定了杆在操作期间枢转的轴线。 第一和第二弓形狭槽接收杆的第一和第二部分。 第一槽的圆弧的​​中心位于第二槽内的第一位置,第二槽的圆弧的​​中心位于第一槽内的第一位置。 由提升手柄携带的阻挡构件与杆抵靠,用于防止第一部分枢转到第二部分可以从第二狭槽枢转的第一位置。