| 摘要 |
An electrical bus includes a receptacle for mating with an external electrical connector. This receptacle defines an entrance and a tapering inner wall portion diverging inwardly of the entrance. A connecting adapter member comprises a first portion whose external periphery presents flat surfaces for engagement by a tool, and a second portion comprising a plurality of elongate tapered segments. The elongate tapered segments define a central bore and a peripheral surface generally congruent with the inner wall surface of the receptacle. The segments are resiliently inwardly compressible to effect mating with the receptacle, so as to hold the adapter member rotatably in captive relation therein. The central opening is threaded to receive a complimentarily threaded stud as for example, a transformer connector stud. Upon inserting the adapter member in captive relation in the bus receptacle, a tool is applied to the tool receiving portion thereof and the adapter rotated to threadingly engage the stud member. When the stud member bottoms or otherwise engages an abutment surface in the receptacle, the adapter member is rotated further so that the adapter advances along the stud, the outer periphery of the segments advancing to engage the inner receptacle wall. The resilient segments are thus pressed inwardly whereby the inner thread firmly engages the stud thread while the outer periphery is in firm contact with the inner receptacle wall, thus forming optimum electrical and mechanical contact between receptacle, adapter and stud.
|
