Browse Prior Art Database

Sheet Turnover Device

IP.com Disclosure Number: IPCOM000083498D
Original Publication Date: 1975-Jun-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Harding, SR: AUTHOR

Abstract

This sheet turnover device operates as generically described and claimed in U.S. Patent 2,901,246, and includes improved paper stop fingers to align the paper while it is in the turnover pocket.

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Sheet Turnover Device

This sheet turnover device operates as generically described and claimed in U.S. Patent 2,901,246, and includes improved paper stop fingers to align the paper while it is in the turnover pocket.

Fig. 1 shows a side view of the turnover device. A sheet of paper 10 is driven into turnover pocket 11 by drive rollers 12 and 13. Roller 12 rotates counterclockwise, whereas roller 13 rotates clockwise. The normally flat sheet 10 is forced to conform to curved plate 14 and its leading edge engages a number of stop fingers 15. These fingers are rigidly attached to shaft 16, as shown in Fig. 2, and define an alignment plane for the sheet 10. The shaft 16 is spring biased for clockwise rotation, as shown by arrow 17. The force of the moving paper is represented by arrow 18 and operates to rotate shaft 16 counterclockwise against its spring bias.

If the sheet 10 enters the turnover pocket in skewed fashion, it engages one of the fingers 15 and rotates the shaft 16 and the plane of all of the fingers. When the sheet is totally inserted into the pocket, its leading edge aligns to the plane of these fingers 15, and force 17 drives the sheet's trailing edge (now its leading edge) into the nip of roller 13 and counterclockwise rotating roller 19. Rollers 13 and 19 cause the sheet 10 to exit to path 20, aligned and turned over from its state in entrance path 21.

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