ITEM WITH A VARIABLE FRICTION FACTOR AND STRUCTURE WITH A VARIABLE FRICTION FACTOR

摘要

1. Part with a variable coefficient of friction including: the first surface; the second surface; an insulating part consisting of a sheet-like base, a porous film or a sheet-like base with through holes; an electrically conductive part electrically connecting the first surface to the second surface, the electrically conductive part fills the sheet-like base, the porous film or the through holes of the sheet-like base. 2. Part with a variable coefficient of friction according to claim 1, in which the electrical conductivity of the electrically conductive part is 1 × 10-1 × 10 cm / cm, the electrical conductivity between the entire first surface and the entire second surface 1 × 10-1 × 10 cm / cm and the insulating part and the electrically conductive part with a surface area of at least 0.785-7850 μm, one open part is on the first surface. 3. A variable friction part according to claim 2, in which the insulating part and the electrically conductive part with a surface area of at least 0.785-7850 μm, one open part is on the second surface. Part with a variable coefficient of friction according to any one of claims 1 to 3, in which the material of the electrically conductive part is at least one material selected from the group consisting of an organic electrically conductive polymer, carbon compounds, metal oxides, a material including such metal oxides that are doped with metal, metal hydroxide and ER particles. 5. Part with a variable coefficient of friction according to any one of claims 1 to 3, in which the proportion of the area of the electrically conductive part located on the first surface in the entire first surface is 5-85% .6. Part with a variable coefficient of friction in �