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Browse Prior Art Database

Three Way Clutch for Multiple Paper Feeding

IP.com Disclosure Number: IPCOM000050047D
Original Publication Date: 1982-Aug-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 3 page(s) / 47K

Publishing Venue

IBM

Related People

Mathews, RD: AUTHOR

Abstract

This three-way clutch allows separate indexing operations of two rolls of paper with a single indexing motor. Additionally, both rolls can be driven simultaneously, or a wide paper sheet can be fed past the paper paths of both rolls. An example of an application of this paper-feeding technique is a retail point of sale terminal employing a receipt tape, a journal tape, and a wide roll or fanfold paper printing capability.

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Three Way Clutch for Multiple Paper Feeding

This three-way clutch allows separate indexing operations of two rolls of paper with a single indexing motor. Additionally, both rolls can be driven simultaneously, or a wide paper sheet can be fed past the paper paths of both rolls. An example of an application of this paper-feeding technique is a retail point of sale terminal employing a receipt tape, a journal tape, and a wide roll or fanfold paper printing capability.

In Fig. 1, left-hand roller set 1 and right-hand roller set 2 can be individually and separately driven to advance the receipt and journal tapes, or a wide paper roll can be fed, as described in (*). The three way clutch assembly includes drive clutch 10, left-hand clutch 11, and right-hand clutch 13. Drive clutch 10 has a face clutch of teeth on each end of the shaft, a main drive gear, and a bearing yoke. Clutch 11 has a single face clutch and is keyed to the central shaft 12. Clutch 13 has a single face clutch and a bearing yoke. Shaft 12 drives gear 6L, which drives gears 7L and 8L to index the receipt tape. Clutch 13 drives gear 6R, which drives gears 7R and 8R to index the journal tape.

Arm 15 is attached at one end to electromagnet 14 and, at the other end, to the yoke of clutch 10. Arm 15 is spring-loaded to the right which causes the right face clutch of clutch 10 to engage clutch 11 for rotation of shaft 12 upon operation of the single drive motor 16. The journal tape does not move at this time because the movement of clutch 10 to the right to engage clutch 11 disengages the left face clutch of clutch 10 from clutch 13. Bias spring 17 normally pushes the bearing yoke associated with clutch 13 to the left toward side plate 18.

Actuation of rollers 2 requires energization of magnet 14. This moves clutch 10 to the left (as shown in Fig. 1) so that the left face clutch...