Browse Prior Art Database

PRINT WHEEL REMOVAL ASSIST MEANS

IP.com Disclosure Number: IPCOM000023900D
Original Publication Date: 1979-Apr-30
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 334K

Publishing Venue

Xerox Disclosure Journal

Abstract

A positive working, low cost, removal assist means is disclosed to provide an easy and smooth removal of the print wheel from the shaft of the print wheel positioning motor. With reference to Figures 1 and 2, print wheel 10 is shown mounted to the print wheel motor shaft 11 and the motor shaft hub 12. Print wheel 10 comprises cap 13, print wheel hub 14, flag 15, spokes 16 and character slugs 17. The print wheel 10 is mounted to motor shaft 11 by the operator holding the cap 13 between her fingers and forcing the print wheel 10 onto shaft 11 and against hub 12 with the shaft 11 coming to rest in an opening (not shown) within cap 13. Prior to this invention, in order for the operator to remove the print wheel 10, it was necessary for the operator to grasp the cap 13 between her fingers and physically pull the print wheel 10 from motor shaft IL This was a difficult task because of the tightness of fit between the print wheel 10 and motor shaft 1L

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XEROX DISCLOSURE JOURNAL

PRINT WHEEL REMOVAL ASSIST MEANS Proposed~tR~Frecette Classification

U~S~CL 197/53

mt. CL B41j 1/32

A positive working, low cost, removal assist means is disclosed to provide an easy and smooth removal of the print wheel from the shaft of the print wheel positioning motor.

With reference to Figures 1 and 2, print wheel 10 is shown mounted to the print wheel motor shaft 11 and the motor shaft hub 12. Print wheel 10 comprises cap 13, print wheel hub 14, flag 15, spokes 16 and character slugs 17. The print wheel 10 is mounted to motor shaft 11 by the operator holding the cap 13 between her fingers and forcing the print wheel 10 onto shaft 11 and against hub 12 with the shaft 11 coming to rest in an opening (not shown) within cap 13. Prior to this invention, in order for the operator to remove the print wheel 10, it was necessary for the operator to grasp the cap 13 between her fingers and physically pull the print wheel 10 from motor shaft IL This was a difficult task because of the tightness of fit between the print wheel 10 and motor shaft 1L

The print wheel removal assist means 20 is attached to the ribbon guide/backstop (for the print wheel spokes) 30 via openings 31 and 32 and comprises a lever portion 21 and a semi~circularportion 22 together with connecting portions. As shown in Figure 1 with the print wheel 10 installed, the lever portion 21 is in a vertical

20

30

FIG. / FIG, 2

Volume 4 Number 2 March/April 1979 175

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