Device for preloading a torque loaded mechanism on a folding cyl

Details Device for preloading a torque loaded mechanism on a folding cyl Device for preloading a torque loaded mechanism on a folding cyl

1996-05-30

1999-07-20

Hail, III, Joseph J.

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

493425, 270 47, B42C 100

Patent

active

059249706

ABSTRACT:
A cylinder in a folding apparatus includes a plurality of product seizing devices. Each product seizing device includes a cam and a shaft having a plurality of product seizing devices attached thereto. A cam follower is mounted to the shaft and a torsion bar is coupled to the cam follower. A torque preloading element for applying a preloaded torque to the torsion bar is provided which maintains the cam follower in contact with the cam. Finally, mechanism for incrementally adjusting and maintaining the preloaded torque on the torsion bar is provided. A variety of mechanisms for incrementally adjusting the preloaded torque are possible. For example, the mechanism may include a first facial toothing on an interior face of the torque preloading element and a second facial toothing on an exterior face of an opposing element. The opposing element is mounted to a work side end of the cylinder and the first facial toothing engages the second facial toothing. The preloaded torque on the torsion bar is incrementally adjusted by relative movement between the first and second facial toothings.

REFERENCES:
patent: 2435881 (1948-02-01), Faeber
patent: 2624572 (1953-01-01), Harless
patent: 2991072 (1961-07-01), Deitrich
patent: 3455547 (1969-07-01), Rudolph et al.
patent: 3865361 (1975-02-01), Neal
patent: 4381106 (1983-04-01), Loebach
patent: 4892036 (1990-01-01), Lange
patent: 5096175 (1992-03-01), Lange et al.
patent: 5522586 (1996-06-01), Bunnett et al.

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