| 摘要 |
<p>A system for preventing application of excessive force or torque to a system by locking the system when some predetermined amount of overload is applied thereto. The system is comprised of an input assembly including an input shaft, an output assembly including an output shaft and a pivot member interposed and transmitting drive between the input and output assemblies. In the event of an overload, the pivot member, which may be in the form of a pin or pins or a triangular member, pivots and permits limited rotational movement of the assemblies with respect to each other; thereby allowing camming surfaces carried on the input shaft to cam brake shoes carried by the output assembly into braking engagement with the inner, brake drum surface of the system casing.</p> |
