Coupling for motor driven fitting - has slit expanding square at one end and reduced width socket slit at other end.

摘要

The coupling body (26) has at one end a square which when the coupling body is installed stands in driving engagement with the corresponding inner squared end of the drive shaft. The square is slit so that it can be spread out. The other end of the coupling body has a socket slit which when the coupling is installed is in driving connection with the suitably formed end of the switching shaft (28). The width of this socket slit can be reduced. The square of the coupling body pref. has an axial conical bore containing an axially movable expanding stud with conical sleeve face. The stud can be internally threaded to take a screw set in the coupling member. USE/ADVANTAGE - Substantially play-free connection between drive shaft and switching shaft even when these are made by different manufacturers.