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Clip-On Form Thickness Compensation Wheel Bracket

IP.com Disclosure Number: IPCOM000062166D
Original Publication Date: 1986-Oct-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 2 page(s) / 57K

Publishing Venue

IBM

Related People

Watts, JE: AUTHOR

Abstract

Figs. 1-3 illustrate several views of the present mechanism. A clip-on nose wheel bracket also serves as a retaining clip to hold the print head in a carriage. Movable carriage dot matrix print heads and the like often require variable form thickness adjustment control. A typical adjustment is to provide a compression wheel that is mounted to the print head which is spring loaded against the printer platen and documents over the platen. As the carriage traverses the printing field across the platen, the roller bears against the document and pushes the print head backward against spring-loaded pressure in the event the document is thicker. Fig. 1 illustrates a semi-pictorial view of a schematic of the present design. The print head 1 is mounted to a carrier 2 for traversing a print line in a printer.

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Clip-On Form Thickness Compensation Wheel Bracket

Figs. 1-3 illustrate several views of the present mechanism. A clip-on nose wheel bracket also serves as a retaining clip to hold the print head in a carriage. Movable carriage dot matrix print heads and the like often require variable form thickness adjustment control. A typical adjustment is to provide a compression wheel that is mounted to the print head which is spring loaded against the printer platen and documents over the platen. As the carriage traverses the printing field across the platen, the roller bears against the document and pushes the print head backward against spring-loaded pressure in the event the document is thicker. Fig. 1 illustrates a semi-pictorial view of a schematic of the present design. The print head 1 is mounted to a carrier 2 for traversing a print line in a printer. Legs 3 are integrally a part of the print head 1 and fit into slot 4 in the carrier 2. Channel members 5 serve as a pair of guiding grooves for the sides of the nose wheel mounting bracket 6A which slide into the channels 5. Serrated teeth 7 on the inner edge of the legs forming the bracket 6A can grip the extended legs 3 where they emerge from slot 4 in the carrier 2. Fig. 2 illustrates a front elevational schematic of the print head 1 with the legs 3 inserted through slot 4 to protrude from the bottom surface of the carrier 2. A small gap 6B exists between the bottom surface of carrier 2 and the bottom of the guide groove member 5. This dimension 6B is made to match the thickness of the bracket 6A in Fi...