Browse Prior Art Database

Dot Module

IP.com Disclosure Number: IPCOM000082744D
Original Publication Date: 1975-Feb-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Doig, KC: AUTHOR

Abstract

A technique for installation, mounting, and adjusting of a document transport device (DOT) such as that described in U.S. Patent 3,747,921 is shown.

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Dot Module

A technique for installation, mounting, and adjusting of a document transport device (DOT) such as that described in U.S. Patent 3,747,921 is shown.

The DOT module shown includes the DOT and its back-up roller mounted on a front plate, which is connected to the back plate by a set of isolator units. The front and back plates are aligned when the isolator units are installed.

The front plate arm, which holds the DOT, provides slots for DOT tip-to-roller adjustment, and an alignment edge to place the DOT at the correct skew angle. Both the DOT and roller may be skewed at the same or different angles, but the chosen skew angles and the DOT tilt angle are built into the front plate so no angle adjustment is necessary.

The DOT-tip-to-roller adjustment is easily perforned, and since the DOT and roller are rigidly connected by the front plate, the static distance between tip and roller does not vary. The roller can be removed and replaced without readjustment which may be required for inserting the module into a machine. The module can, if required, be readily adjusted in a machine for the roller-to- paper path relationship.

As shown, the front plate is isolated from the back plate by two rubber isolator units. The design of the isolator units, which are used in parallel, provides isolation along the axis of the tip shaft, wherein the forced motion occurs. The isolator system is much stiffer, however, along the other two axes and also resists torsional motion...