Patent ID: 6341676
Filing Date: 2002-01-29
Classification: F16D

Abstract:
An electromagnetic brake comprising a construction in which:a plate body is disposed next to an electromagnet portion with a predetermined interval; a fixed iron core of the electromagnet portion and the plate body are connected and united with plural guiding rods, and a braking force receiving bracket for receiving one pair of brake shoes and tangent force of the pair of brake shoes is disposed between the electromagnet portion and the plate body; the braking force receiving bracket is fixed to a fixation member; one of the pair of brake shoes is attached to a moveable iron core side of the electromagnet portion through a centripetal coupling composed of two small metal plates one of which has a convex surface and the other of which has a concave surface, and the other of the pair of brake shoes is attached to the plate body side through an adjusting screw and a centripetal coupling composed of two small metal plates one of which has a convex surface and the other of which has a concave surface; and concave and convex contact faces of each of the centripetal couplings are held tightly fitting as not to generate small gaps, by one pair of return springs each of which is made by punch press of steel plate as to have an approximately rectangular configuration from which plural leg pieces protrude, continuously pushing the brake shoes in directions that the brake shoes mutually part from, each of which is disposed between each of the brake shoes and the bracket, wherein the braking force receiving bracket holds and surrounds the pair of brake shoes.