Browse Prior Art Database

Felt Wiper Retainer

IP.com Disclosure Number: IPCOM000052954D
Original Publication Date: 1981-Aug-01
Included in the Prior Art Database: 2005-Feb-12
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Schall, TE: AUTHOR [+2]

Abstract

A variety of printer devices utilize a horizontal guide bar or shaft on which a print head carrier may ride or from which the position of the print head as it rides may be stabilized. During the functional life time of these devices, it is necessary to provide lubrication and a wiping, cleansing action along the guide shaft to prevent the build-up of grime and abrasive dust particles. Fig. 1 illustrates a horizontal view of a guide shaft 1 on which a print head carrier 2 may slide or reciprocate in the direction of the arrow shown. A felt lubricating wiper 3 is held in place by a retaining clip 4 between the arms of the carrier 2 which would ride on shaft 1.

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Felt Wiper Retainer

A variety of printer devices utilize a horizontal guide bar or shaft on which a print head carrier may ride or from which the position of the print head as it rides may be stabilized. During the functional life time of these devices, it is necessary to provide lubrication and a wiping, cleansing action along the guide shaft to prevent the build-up of grime and abrasive dust particles. Fig. 1 illustrates a horizontal view of a guide shaft 1 on which a print head carrier 2 may slide or reciprocate in the direction of the arrow shown. A felt lubricating wiper 3 is held in place by a retaining clip 4 between the arms of the carrier 2 which would ride on shaft 1.

Fig. 2 illustrates a longitudinal cross-section taken through the shaft 1, the felt wiper 3 and the retaining clip 4. It may be seen that the retaining clip can be formed with an increasingly thickened cross section in the manner of retaining rings to provide a uniform compressional force. The felt wiper 3 is formed in the rectangular piece of felt cut to a width approximately equal to the circumferential dimension of shaft 1. The felt may be lubricated initially and renewed, as necessary. The retaining clip 4 can be made of plastic, and advantageously can be a molded part. The retaining clip can be extended longitudinally to cover more or less of the felt wiper material, as necessary, to hold it in place.

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