Door and spring assembly for a paper feed mechanism

Details Door and spring assembly for a paper feed mechanism Door and spring assembly for a paper feed mechanism

1988-01-29

1989-04-04

Levy, Stuart S.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Pins on flexible belt or chain

226 82, 4006162, G03B 130, B41J 1132

Patent

active

048178420

ABSTRACT:
A feed mechanism for a printer having a door with hinge elements connected by hinge pins to the tractor body so as to be rotatable between first and second position. The hinge elements have rotary cams with convex and planar surfaces. A single flat steel spring is simply supported between its ends by a platform. The spring is held in flexed condition in a continuous bend by the platform and the cams of the hinge elements. The platform has coplanar support edges for simply supporting the spring. Alignment and centering means on the platform maintain the horizontal axis of the spring aligned with the common axis of the hinge pins and centered between the cams.

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IBM Maintenance Library 3203 Printer, Models 3 and 4 Parts Catalog, Mar. 1978, pp. 70, 71.

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