| 摘要 |
<p>A planar overrunning coupling (34) includes a pair of coaxial, rotatable coupling plates (36, 38) situated in close proximity. Struts (56) nominally carried in pockets (54, 60) formed in one coupling plate are normally urged into engagement with pockets formed in the other coupling plate by a spring disposed beneath each strut (56). At least one end of each strut (56) is provided with a radiused end surface having a first nominal radius of curvature. The pocket surface or shoulder with which the radiused strut end engages is likewise provided with a second nominal radius of curvature that is the same as or greater than the first radius of curvature of the strut end surface. The radiused strut end surfaces and the corresponding pocket shoulders provide for simplified coupling manufacture and for reduced stresses in the struts (56) during torque transmission through the coupling (34).</p> |
