公开(公告)号：US5784870A

公开(公告)日：1998-07-28

申请号：US621278

申请日：1996-03-22

申请人： Brian David Seegert ,  Royal Aaron Henning ,  Daniel Angelo Sebben ,  Timothy Paul Zellmer ,  William Garrald Cameron ,  Wayne Robert Hutchison

发明人： Brian David Seegert ,  Royal Aaron Henning ,  Daniel Angelo Sebben ,  Timothy Paul Zellmer ,  William Garrald Cameron ,  Wayne Robert Hutchison

IPC分类号： F16H15/02 ,  A01D67/00

CPC分类号： F16H15/02 ,  Y10S56/22

摘要： A mower deck lift mechanism which includes a friction disk selectively pivotable into engagement with first and second pulleys of a double pulley jacksheave. A linkage coupled between the friction disk and the deck raises the mower deck when the friction disk engages and rotates with the first pulley, and lowers the deck when the friction disk engages and rotates with the second pulley. Neutral return mechanisms are provided for returning the friction disk to a neutral position when the operator releases a control and when the deck approaches its extreme raised or lowered positions. A cutting height preset mechanism is also provided.

摘要翻译： 一种割草机升降机构，其包括选择性地可枢转地与双皮带轮千斤顶的第一和第二滑轮接合的摩擦盘。 当摩擦盘与第一滑轮接合并旋转时，联接在摩擦盘和甲板之间的连杆提升割草机甲板，并且当摩擦盘与第二滑轮接合并旋转时降低甲板。 提供了中立返回机构，用于当操作者释放控制时以及当甲板接近其极限升高或降低位置时将摩擦盘返回到中立位置。 还提供切割高度预设机构。