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Continuous Forms Feeding Apparatus

IP.com Disclosure Number: IPCOM000089343D
Original Publication Date: 1977-Oct-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Dreblow, MJ: AUTHOR [+3]

Abstract

Continuous forms feeding apparatus suitable for precise incrementation of the form is shown and described.

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Continuous Forms Feeding Apparatus

Continuous forms feeding apparatus suitable for precise incrementation of the form is shown and described.

The feeding apparatus comprises a pair of pinwheels 10 to engage the edge of the continuous form, and each is driven by a suitable motor 12. A pair of idler pinwheels 14 is provided, one on each side of the paper line, and a pinch roller 16 is mounted to bear directly on the continuous forms paper 18 so that the paper is pinched between one of the idler pinwheels 14 and roller 16. Pinch roller 16 is driven by a stepping motor 20.

Motors 12, which may also be stepping motors, are designed to be in a constant runaway state. The motors 12 are held in check only because stalling torque is designed to be less than that of metering pinchroll 16 plus the braking torque of idler 14. The metering pinchroll has frictional characteristics which prevent slippage of paper and which also permit an accurate increment of paper movement each time motor 20 is energized for one step.

As shown in Fig. 2, pinchroll 16 comprises a steel band 22 and a pair of rubber members 24 surrounding the roll. The precise incrementation is provided due to rubber members 24 being compressed when roll 16 is pinched with idler pinwheel 14 so that the steel band 22 determines the amount of paper fed for each operation of the stepping motor 20. The continuous drive to motor 12 maintains sufficient force on paper 18 so that the paper is properly tensioned at the u...