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Browse Prior Art Database

Brush Mechanism

IP.com Disclosure Number: IPCOM000049294D
Original Publication Date: 1982-Apr-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Fellows, CJ: AUTHOR [+3]

Abstract

The mounting mechanism for a rotary driven brush is pivotally mounted on on a reciprocating carriage. A sliding weight adjusts for brush pressure.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 80% of the total text.

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Brush Mechanism

The mounting mechanism for a rotary driven brush is pivotally mounted on on a reciprocating carriage. A sliding weight adjusts for brush pressure.

In one particular application, the belt driven brush 10 is used in coaction with a pumice slurry P from supply tube ST to clean the copper surface S of a panel workpiece WP, such as the type used for multilayer printed circuit boards. The brush 10 is rotatively mounted on a mounting frame 11 that is pivotable about the shaft 12. Shaft 12 is affixed to the partially shown reciprocating carriage frame
13. Frame 13 externally straddles the tank (not shown) that houses the workpiece WP, workpiece support table fixture 14, and brush 10 and its frame
11. Cylindrical slidable weight 15 is concentrically mounted on rod 16. The rod 16 in turn is mounted on frame 11 orthogonal to and over pivot shaft 12.

In operation, as the carriage frame 13 reciprocates in the X directions X1-X2, rotating brush 10 provides a scrubbing action on surface S. The frame 11 is counterbalanced such that as brush 10 engages the leading edge of the workpiece WP as it travels in the X1 direction, the WP will cause the frame 11 via brush 10 to pivot cou clockwise CCW about shaft 12 with sufficient clearance so as to allow for the relative passage of the workpiece WP beneath the contacting brush 10. In this manner, the brush mechanism accommodates workpieces of different thicknesses.

Prior to initiating the scrubbing operation, by adjustin...