公开(公告)号：US5862903A

公开(公告)日：1999-01-26

申请号：US349087

申请日：1994-12-02

申请人： James M. Gruden ,  Robert B. Brooks, Jr.

发明人： James M. Gruden ,  Robert B. Brooks, Jr.

IPC分类号： E05B65/12 ,  F16D27/01 ,  F16D43/16 ,  F16D23/08

CPC分类号： E05B81/25 ,  F16D27/01 ,  F16D43/16 ,  Y10S292/23 ,  Y10T292/1021 ,  Y10T70/7057

摘要： A centrifugal clutch for use with a power door lock actuator. The centrifugal clutch includes an independently rotatable pinion cup having an integral pinion gear which meshes with a jack screw, and a driver rotatably secured to an output shaft of a drive motor. The driver has at least one radially outwardly opening recess formed therein with at least one slider slidably retained within the recess. The slider is biased in a radially inward direction by magnetic lines of force which are provided by a permanent magnet mounted within the driver. Alternatively, a number of sliders can be formed of magnetic material such that the magnetic sliders are mutually attracted to one another in a radially inward direction. A centrifugal force is generated when the driver is rotated. The centrifugal force overcomes the magnetic attractive force to throw the sliders radially outwardly into positive driving engagement with the pinion cup. When the driver is no longer rotatably driven, the centrifugal force is eliminated and the magnetic attractive force then urges the sliders radially inwardly to break the positive driving engagement with the pinion cup.

摘要翻译： 一种用于电动门锁致动器的离心式离合器。 离心式离合器包括具有与千斤顶螺钉啮合的整体式小齿轮的可独立旋转的小齿轮杯和可旋转地固定在驱动马达的输出轴上的驱动器。 驱动器具有形成在其中的至少一个径向向外的开口凹部，其中至少一个滑块可滑动地保持在凹部内。 滑块通过由安装在驱动器内的永磁体提供的磁力线沿径向向内的方向偏置。 或者，多个滑块可以由磁性材料形成，使得磁性滑块在径向向内的方向上彼此相互吸引。 当驾驶员旋转时产生离心力。 离心力克服了磁力吸引力，将滑块径向向外推入与小齿轮杯的正驱动接合。 当驾驶员不再可旋转地驱动时，离心力被消除，并且磁性吸引力然后将滑块径向向内推动以破坏与小齿轮杯的正向驱动接合。