Browse Prior Art Database

Hopper Mechanism

IP.com Disclosure Number: IPCOM000081492D
Original Publication Date: 1974-Jun-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Binkhuysen, TC: AUTHOR

Abstract

In a hopper mechanism sheets are taken from the top of a stack, the latter being kept at the same level by raising the stack platform under control of the picker roll.

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Hopper Mechanism

In a hopper mechanism sheets are taken from the top of a stack, the latter being kept at the same level by raising the stack platform under control of the picker roll.

The hopper mechanism consists of a platform A, pivotable at B, and at the front end provided with racks H, meshing with pinions K attached to a shift I. Shaft I is mounted in frame plates and at one end is provided with a torsion spring L and at the other end with a helical spring clutch M, coupling an arbor on the shaft to an arbor attached to the frame plate.

When a stack of documents C is placed on platform A, the platform is pushed down at the front side, pivoting at B and tensioning torsion spring L via racks H, pinions K and shaft I, while helical spring clutch M is slipping.

On the front side of the stack there is a picker roll D mounted on a bellcrank, which is urged clockwise by a spring E. When a number of documents C have been removed from the stack by picker roll D, to separator rolls F and G, the picker roll D will have been lowered, in consequence whereof the bellcrank has been moved clockwise, to release the helical spring clutch M, which, in turn, causes platform A to be raised by the action of torsion spring L.

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