Rotary shafts – gudgeons – housings – and flexible couplings for ro – Overload release coupling – Torque transmitted via resiliently biased positive drive...
Patent
1979-11-07
1982-05-04
Myhre, Charles J.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Overload release coupling
Torque transmitted via resiliently biased positive drive...
464 30, 464100, F16D 702
Patent
active
043275630
ABSTRACT:
This torque-limiting drive coupling in the annular hub of a drive sprocket has an oppositely-disposed pair of oblique internal notches in one of which is tightly seated one end of a steel driving leaf spring, the opposite end of which loosely fits the opposite notch. The central portion of this spring resiliently engages one of the flat sides of a hexagonal driven shaft for driven transmission of a conveyor roller mounted thereon under normal circumstances. This leaf spring, however, yields so as to slip over the corner ridges between the flat sides of the hexagonal shaft so as to permit the sprocket to continue rotation upon anti-friction bearings pressed therein while the shaft is halted or slowed by an obstacle, such as work accumulating on the rollers of an accumulating conveyor driven thereby. In a second form of the invention, the driving leaf spring at said one end is shaped like a numeral seven and is anchored in a similarly-shaped notch while in a third form that end terminates in an approximately rhombus-shaped loop and is driven into a similarly-shaped notch. In each form of the invention, the leaf spring is spaced away from the axis of rotation of the drive sprocket and driven hexagonal shaft.
REFERENCES:
patent: 1182486 (1916-05-01), Hudson
patent: 1962993 (1934-06-01), Leece
patent: 2826903 (1958-03-01), Gerstung et al.
patent: 2883840 (1959-04-01), Geiger, Jr.
patent: 3802222 (1974-04-01), Weber
patent: 3942338 (1976-03-01), Furlette et al.
patent: 4056953 (1977-11-01), Furlette et al.
patent: 4143525 (1979-03-01), Major
Moy Magdalen
Myhre Charles J.
Taylor Jay C.
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