公开(公告)号：US4892001A

公开(公告)日：1990-01-09

申请号：US240858

申请日：1988-09-06

申请人： Richard S. Meyers ,  Charles R. Jones

发明人： Richard S. Meyers ,  Charles R. Jones

IPC分类号： B60K20/02 ,  F16H61/24 ,  F16H63/20 ,  F16H63/34

CPC分类号： F16H63/3408 ,  F16H61/24 ,  F16H2063/204 ,  Y10T74/2011

摘要： An interlock assembly for preventing more than one of a plurality of shift bars within a transmission shifter assembly from being moved out of a central neutral position at a given time is disclosed. An interlock bracket is connected to the lower end of the shift lever for movement therewith about a first or selecting axis. When the shift lever is moved so as to select a particular shift bar for movement, the interlock bracket moves therewith, thereby blocking movement of the non-selected shift bars. An interlock pin is connected to the interlock bracket for movement therewith. First and second springs are provided for urging the interlock pin, the interlock bracket, and the shift lever toward a centered position relative to the plurality of shift bars. The first spring resists movement of the shift lever out of the centered position in a first direction about the selecting axis, while the second spring resists movement of the shift lever out of the centered position in a second, opposite direction about the selecting axis. The first and second springs differ in size by a large amount so as to provide different magnitudes of tactile feedback to an operator of the shift lever. As a result, the operator can easily determine by "feel" which of the plurality of shift bars has been selected for subsequent movement to a gear engaging position.

公开(公告)号：US4823596A

公开(公告)日：1989-04-25

申请号：US933790

申请日：1986-11-24

申请人： Richard S. Meyers ,  George A. Willford

发明人： Richard S. Meyers ,  George A. Willford

IPC分类号： G01M13/02

CPC分类号： G01M13/02

摘要： A method of testing a manual transmission utilizes a test fixture adapted to be positioned on the transmission shift tower mounting pad. The test fixture includes a plurality of cylinders equal in number to the number of transmission shift rails, with each cylinder being connected to a separate actuating arm operatively engaging a separate one of the shift rails. The transmission is positioned in a test stand for supplying power to the transmission input while simultaneously loading the output, and providing an oil flush. The cylinders are then actuated in a predetermined sequence to independently actuate the shift rails and shift the transmission in a predetermined sequence. In accordance with the present invention, a constant force is applied to the shift rail to effect a shift, and the time required to complete a particular shift is measured. This measured time is then compared to a predetermined reference time, which represents the time period the shift should have taken in a satisfactory transmission. If a particular measured time varies significantly from a corresponding reference time, this may indicate that certain components of the transmission are defective or have been improperly assembled.

摘要翻译： 测试手动变速器的方法利用适于定位在变速器换档塔安装垫上的测试夹具。 测试夹具包括多个数量等于变速箱换挡轨道数量的气缸，每个气缸连接到单独的致动臂，操作地接合分离的一个换档导轨。 变速箱定位在测试台中，用于向变速器输入供电，同时加载输出，并提供油冲洗。 然后以预定顺序致动气缸，以独立地致动换档导轨并以预定顺序移动变速器。 根据本发明，向换档导轨施加恒定力以实现换挡，并且测量完成特定换档所需的时间。 然后将该测量时间与预定的基准时间进行比较，该预定参考时间表示在令人满意的传输中移位应该采取的时间段。 如果特定的测量时间从相应的参考时间显着变化，则这可能表明传输的某些部件是有缺陷的或已被不正确的组装。