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Reducing shaver foil wear with special geometry of cutter end lamel

IP.com Disclosure Number: IPCOM000211164D
Publication Date: 2011-Sep-26
Document File: 1 page(s) / 176K

Publishing Venue

The IP.com Prior Art Database

Abstract

2010ID03209

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2011ID03209 23.09.2011

Reducing shaver foil wear with special geometry of cutter end lamel

Within foil shavers, the shaving foil is one of the most delicate parts that wear out relatively fast. The location of the wear is observed to be the highest at the longitudinal ends of the lamel cutter.

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Average foil thickness during endurance test at three locations

Wear is enabled by different parameters e.g. pressure exercised by the cutting element onto the foil, reciprocal frequency of the cutter element, radius and geometry of the cutting element. Taking away or reducing one or more of these parameters in the critical areas (the sides) of the lamel cutters, reduces the wear of the foil.

A solution might be to shape the end lamel(s) differently from the other lamels in order to reduce pressure between foil and the side of the lamel cutter.

Examples of principles whereby the end lamel has a function to reduce the wear (combination can further improve functionality):

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 End lamela(s) can be rounded so that there is no sharp edge that digs into the foil
 End lamela(s) can be made thicker to increase the contact surface dividing the pressure force over a larger surface, resulting in a les...