Joints and connections – Interfitted members – Longitudinally splined or fluted rod
Patent
1989-07-03
1990-05-08
Kundrat, Andrew V.
Joints and connections
Interfitted members
Longitudinally splined or fluted rod
403298, 403330, B25G 328
Patent
active
049233246
ABSTRACT:
Rather than engage the grooves of a cartridge's splined hub by means of fingers attached to a reel motor shaft, the present invention uses a mechanical coupler mounted on the motor shaft which contacts the spline lands at two places and locks the mechanical coupler position by insertion of a spring loaded tongue into one of the grooves of the spline. This groove is angularly located midway between the lands which contact the mechanical coupler, effecting a "three point" engagement of the mechanical coupler with the hub. The land contacting surfaces and the tongue are chamfered to facilitate engaging the hub for slight off-axial misalignment of the hub and mechanical coupler. The spring loaded tongue forces the spline contacting surfaces of the mechanical coupler into a "zero clearance" fit with the contacted lands of the spline, providing an intimate and backlash free connection between the hub and driving motor.
REFERENCES:
patent: 2452742 (1948-11-01), Franzene
patent: 3722929 (1973-03-01), Gilman
patent: 4422794 (1983-12-01), Deken
patent: 4701068 (1987-10-01), Andrews et al.
Eastman Kodak Company
Kundrat Andrew V.
Robbins Daniel
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