Patent ID: 7074470
Filing Date: 2006-07-11
Classification: D04C,D10B,H02K,Y10T

Abstract:
1. A protective sleeve for a motor component, comprising a cylindrical-shaped braided cord of twenty-four or more strands using together a multifilament strand and a monofilament strand as braid formation strands made of synthetic fibers having a melting point or a decomposition temperature at 280° C. or more, wherein the protective sleeve has oil resistance at high temperatures of 50% or more, the oil resistance at high temperatures being represented by the following formula: where T denotes a tensile strength of the protective sleeve before a treatment and T′ denotes a tensile strength of the protective sleeve after the treatment, wherein the tensile strength is measured in accordance with JIS L1013-8.5.1, and the treatment is carried out in such a manner that the entire protective sleeve is put into a closed container containing a mixture of 5 weight % of water and 95 weight % of automatic transmission fluid, followed by heating the container so that a temperature of the mixture is maintained at 150° C. for 1,000 hours.