Spool drive for magnetic tape recorder system - has spigot connected to drive gear using formed spring coupling with spring arms for engagement to reduce speed variation effect

摘要

A drive spigot for use in magnetic type recorder applications has a spindle (2) protecting from a chassis plate (1). This supports a drive gear (2 with a gear (3) around the periphery. The drive spigot (5) has a main cylindrical profile with a number of radial projectors that engage the bore of the type spool, the spigot is coupled to the drive gear by a spring coupling element that has three radial fingers (7). The spring element latches on the gear and the fingers engage internal spigot recesses. ADVANTAGE - Coupling reduces transmission of variations in speed.