| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric brush capable of eliminating variations of a charging density between a powder body for forming a low resistance layer and a powder body for forming a high resistance layer, facilitating controlling characteristics and thicknesses of respective layers, and attaining a long life and reduction in electricity loss. SOLUTION: In this electric brush of which one edge of the lead line is fixed at the electric brush body and the sliding surface brought into contact with a rectifier is formed by the low resistance layer and the high resistance layer, both of the low resistance layer and the high resistance layer are bonded, and these surfaces are formed by a metallic layer. When the low resistance layer is bonded with the high resistance layer, a projection is formed on either of the bonded surface of the low resistance layer or the bonded surface of the high resistance layer, and a recess is formed on the other. It is preferable to provide bonding strength by engaging the projection with the recess and bonding. COPYRIGHT: (C)2007,JPO&INPIT
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