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Tape Positioning Mechanism Including Skew Rolls

IP.com Disclosure Number: IPCOM000080177D
Original Publication Date: 1973-Nov-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Beuch, WE: AUTHOR [+4]

Abstract

This mechanism includes a pair of pressure rolls 10 and 12 bearing on a tape 14 which travels in direction A, with the rolls disposed at a skew angle B with respect to the direction A for holding tape 14, as it moves, in contact with aligning rail 16.

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Tape Positioning Mechanism Including Skew Rolls

This mechanism includes a pair of pressure rolls 10 and 12 bearing on a tape 14 which travels in direction A, with the rolls disposed at a skew angle B with respect to the direction A for holding tape 14, as it moves, in contact with aligning rail 16.

Rolls 10 and 12 are rotatably mounted on the legs of a U-shaped roll retainer 18 of sheet spring material. Such mounting is by bearing hubs 20 which are molded onto retainer 18. Retainer 18 is secured onto the top of a stationary support 22. Each of rolls 10 and 12 has a pressure nip with a backup roll 24 which is mounted on a rotatable shaft 26. Retainer 18, under these conditions, is bowed downwardly, as shown in Fig. 2, so as maintain pressure nips between rolls 10, 12 and 24. Bearing hubs 20 are molded onto retainer 18 at a skew angle C so as to hold each of rolls 10 and 12 with their axes at an angle C with respect to the plane of retainer 18, when retainer 18 is in its flat unstressed form prior too assembly (Fig. 3). In this arrangement the axes of rolls 10 and 12 extend parallel with the axes of rolls 24 when the assembly is complete, as shown in Fig. 2.

Tape 14 is gripped between rolls 10, 12 and 24 as it moves in direction A. The skewing of rolls 10 and 12 at the angle B with respect to the direction of movement A of tape 14, causes tape 14 to bear against retainer 16 and thus be held in a proper track for subsequent operation on the tape, such as printing, f...