Load sensor, pinch detection apparatus and load detection apparatus

摘要

This load sensor 10 comprises an elastic conductive tube 11, a center electrode member 13 in which at least the outer circumferential portion has conductivity, the center electrode member being provided within the elastic conductive tube 11, and an insulating linear member 15 in which at least the outer circumferential portion is an elongated shape having insulation properties, the insulating linear member being wound spirally on the center electrode member 13 at a predetermined winding distance. The insulating linear member 15 is constructed of an enamel wire in which a metal wire is coated with enamel or a coat electric wire in which a metal wire is coated with resin. The center electrode member 13 is formed by transversely winding a conductive metal wire 23 spirally on the outer circumference of a center member 21 constructed by coating elastic insulating material on a center reinforcing member made of aramid fibers.