Regulated length take-up device

Details Regulated length take-up device Regulated length take-up device

1992-06-12

1994-07-12

Jillions, John M.

Winding, tensioning, or guiding

Convolute winding of material

With particular drive

242538, B65H 1812

Patent

active

053281160

ABSTRACT:
A regulated length take-up device characterized by its substantially reduced width to be compact and simple structure, offering accurate regulated length take-up operation. A rotating lever is connected to the shaft of a take-up roll via a one-way clutch. Connected to the rotating lever is a cylinder mechanism which allows the take-up roll to rotate for the take-up operation along with the cylinder pull-in action. A sensor lever 32 capable of oscillating in accordance with variations in the take-up diameter of the take-up roll, is disposed in a manner that the orbit of the oscillation of the sensor lever agrees with the direction of the stroke of the cylinder mechanism. Along with a stopper disposed on the sensor lever to face the restoring action of the rotating lever, a cam curvature portion is formed on the rotating lever so that the cylinder stroke is constrained to keep constant the take-up length at every position over the orbit of the stopper regardless of variations of the take-up diameter of the take-up roll.

REFERENCES:
patent: 1108619 (1914-08-01), Poland
patent: 1172733 (1916-02-01), Raber
patent: 1688444 (1928-10-01), Wheelbarger
patent: 4344361 (1982-08-01), MacPhee et al.
patent: 4372697 (1983-02-01), Babcock

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