Connector for detachably connecting a shaft to an implement

Claim 1

A connector comprising two engageable plastic components for mounting on a shaft and an implement respectively, one of said components having a boss formed with an internal circular cross-section screw-threaded socket and having an outer peripheral surface surrounding the socket, said one component being mounted to said implement, and the other component having a central circular cross-section screw-threaded spigot for screw-threaded engagement with the socket and a circular cross-section shroud surrounding the spigot and spaced therefrom and adapted to frictionally engage said outer peripheral surface of the boss when the spigot is screwed into the socket, the spigot and shroud being integral parts of said other component and at least one of the inner surface of the shroud and the outer surface of the boss being tapered so that the frictional engagement between the shroud and boss increases as the spigot is screwed into the socket, and said other component including a socket substantially coaxial with the spigot and shroud, and which retains an end of said shaft.