Browse Prior Art Database

Compliant Tape Guide

IP.com Disclosure Number: IPCOM000074950D
Original Publication Date: 1971-Jul-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Johnson, ES: AUTHOR

Abstract

This tape guide assembly can be completely bench assembled prior to installation on deck 1 of a magnetic tape unit. The guide assembly consists of metal tubular housing 2 which is cut away at opening 3 to receive tape 4, the tape being shown in transverse cross section. End cap 5 forms a fixed position guide surface for the upper edge of the tape and includes mounting plate 6 which is used to mount the guide assembly on the deck. Inner metal tape pin-shaft 7 and nut 8 lock metal end caps 5 and 9 to the tubular housing. The reduced diameter portion 10 of the pin-shaft 7 provides a sliding surface for lower movable compliant guide 11 and guide spring 12. This spring biases the compliant guide in an upward direction against the sliding surface for lower movable compliant guide 11 and guide spring 12.

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Compliant Tape Guide

This tape guide assembly can be completely bench assembled prior to installation on deck 1 of a magnetic tape unit. The guide assembly consists of metal tubular housing 2 which is cut away at opening 3 to receive tape 4, the tape being shown in transverse cross section. End cap 5 forms a fixed position guide surface for the upper edge of the tape and includes mounting plate 6 which is used to mount the guide assembly on the deck. Inner metal tape pin-shaft 7 and nut 8 lock metal end caps 5 and 9 to the tubular housing. The reduced diameter portion 10 of the pin-shaft 7 provides a sliding surface for lower movable compliant guide 11 and guide spring 12. This spring biases the compliant guide in an upward direction against the sliding surface for lower movable compliant guide 11 and guide spring 12. This spring biases the compliant guide in an upward direction against the lower edge of the tape. The large diameter portion 13 of the pin-shaft provides a riding surface for the tape. The length of this large portion provides a fixed gap width for the transverse tape dimension, for example one-half inch.

The assembly is mounted on the deck by bolt 14 and hard rubber washer 15. The thickness of this washer is selected so that bolt 14 must be tightened, deflecting the rubber, and lowering the guide assembly so that the lower guiding surface of cap 5 is properly aligned with the tape path. It is essential that the washer be formed of rubber which is h...