公开(公告)号：US5354241A

公开(公告)日：1994-10-11

申请号：US57524

申请日：1993-05-04

申请人： Harlin J. Trefz ,  Joe Deschamps

发明人： Harlin J. Trefz ,  Joe Deschamps

IPC分类号： F16H7/08

CPC分类号： F16H7/0827

摘要： A belt clutch control apparatus is disclosed having a control handle and linkage means for selectively controlling the transmission and power from a driving pulley to a driven pulley through a driving belt. In a preferred embodiment, the apparatus is specially adapted to control the operation of the cutting blades on a riding mower. The linkage includes an undercenter connecting link for transmitting rotational movement of the control shaft to a bellcrank, which engages a tension spring to operatively move an idler pulley between engaged and disengaged positions relative to the driving belt. The undercenter link moves exclusively between first and second undercenter positions, and is never forced into an overcenter position. An assist spring is provided for securing the undercenter link in both its on and off undercenter positions, thereby relieving the idler pulley spring for this purpose. The linkage significantly reduces both the travel and effort required to move the control handle between its on and off positions.

摘要翻译： 公开了一种带式离合器控制装置，其具有控制手柄和连杆装置，用于通过驱动带选择性地控制从驱动皮带轮到从动皮带轮的传动和动力。 在优选实施例中，该装置特别适用于控制在割草机上切割刀片的操作。 联动装置包括用于将控制轴的旋转运动传递到曲拐的底部中心连接连杆，该弯曲曲柄接合拉伸弹簧，以相对于传动带在啮合和脱离位置之间操作地移动惰轮。 底下链接仅在第一和第二底部位置之间移动，并且不会被迫进入超中心位置。 提供辅助弹簧用于将欠心连接件固定在其下和向下的非重心位置，从而为此释放惰轮滑轮弹簧。 该连接显着地减少了在控制手柄的打开和关闭位置之间移动控制手柄所需的行程和努力。

公开(公告)号：US5288091A

公开(公告)日：1994-02-22

申请号：US11302

申请日：1993-01-29

申请人： Joe Deschamps

发明人： Joe Deschamps

IPC分类号： B62D7/14 ,  B62D7/15

CPC分类号： B62D7/142 ,  B62D7/15

摘要： A four wheel steering system for a vehicle which significantly reduces or eliminates scrubbing of the outside tires. A preferred embodiment is specially adapted for use on riding lawn mowers, and includes a longitudinally moveable cam plate having a pair of cam slots formed therein, each slot engaging an individual steering arm for separately steering each rear wheel. The cam plate is coupled to a sector gear which reciprocates in response to left and right hand movement of a steering wheel, with the sector gear interconnecting the front and rear wheel steering mechanisms. The slots in the cam plate are specially configured to vary the turning angles of the rear wheels so that the wheels turn through varying angles, thereby reducing scrubbing to an acceptable level. In a preferred embodiment, all four wheels may be calibrated to turn about a single point, thereby completely eliminating scrubbing.

摘要翻译： 用于车辆的四轮转向系统，其显着地减少或消除对外部轮胎的擦洗。 优选的实施例特别适用于骑马割草机，并且包括一个纵向移动的凸轮板，其具有形成在其中的一对凸轮槽，每个槽与独立的转向臂接合，用于分别转向每个后轮。 凸轮板联接到扇形齿轮，该扇形齿轮响应于方向盘的左右移动而往复运动，扇形齿轮将前轮和后轮转向机构相互连接。 凸轮板中的狭槽被特别地构造成改变后轮的转动角度，使得车轮转过不同角度，从而将洗涤减少到可接受的水平。 在优选实施例中，可以校准所有四个轮子以绕单个点转动，从而完全消除擦洗。