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Adjustable Diameter Cleaning Brush

IP.com Disclosure Number: IPCOM000075905D
Original Publication Date: 1971-Dec-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 57K

Publishing Venue

IBM

Related People

Abbott, TD: AUTHOR

Abstract

The life of a cleaning brush as used in an electrophotographic processing system is limited by the fiber wear. The mechanism shown enables the diameter of the cleaning brush to be adjusted outwardly, thereby prolonging the life of a cleaning brush.

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Adjustable Diameter Cleaning Brush

The life of a cleaning brush as used in an electrophotographic processing system is limited by the fiber wear. The mechanism shown enables the diameter of the cleaning brush to be adjusted outwardly, thereby prolonging the life of a cleaning brush.

The brush 1 containing a slotted opening 2 is slidably fitted on the open slotted cylinder member 3. Each end of the member 3 has a plurality of teeth 4 as well as cammed surfaces 5, 6 and 10 as shown. Each end of the member 3 is capped with a cap 7, having three studs 8 secured to the end wall thereof, and a single tooth 9 fixed to the inner circumference of the cap 7. When the brush is first used, the tooth 9 is seated in the first tooth of the teeth 4.

In order to increase the diameter of the brush, the tooth 9 is disengaged from the teeth 4 by individually and separately sliding the cap 7 out axially but without disengaging the studs 8 from riding on the cam surfaces 5, 6 and 10. Then the cap is turned slightly so that the tooth 9 is in position to engage the next succeeding tooth of the teeth 4. When in such position, the cap is pushed in to cause engagement between the tooth 9 and the teeth 4. While the cap 7 is being turned, the studs 8 advance upwardly on the associated cam surfaces 5, 6 and 10. This movement causes the member 3 to expand thereby causing the brush to expand. It being noted that the amount of diametral increase of the brush is determined by the slope of the cam...