Patent ID: 9151348
Filing Date: 2015-10-06
Classification: F16D

Abstract:
1. A magnetic brake unit comprising: an operation unit that is rotation-operated; a rotating plate placed below the operation unit and coaxially rotating with the operation unit in conjunction with an operation of the operation unit; and an electromagnetic brake that is placed in contact with the rotating plate and can magnetically adsorb the rotating plate, wherein the rotating plate, on a lower side, includes an adsorbed surface in contact with the electromagnetic brake, wherein the electromagnetic brake, on an upper side, includes an adsorbing surface in contact with the rotating plate and the magnetic brake includes a yoke having a tubular shape, and the yoke has an outer circumferential section and an inner circumferential section that is slightly lower than the outer circumferential section, wherein the electromagnetic brake applies a braking force against a pivoting to the rotating plate in a case where the electromagnetic brake magnetically adsorbs the rotating plate, wherein the rotating plate is pivotable in a state of being in contact with the electromagnetic brake in a case where the electromagnetic brake does not magnetically adsorb the rotating plate, and wherein a polymer material section is on at least one of the adsorbed surface and the adsorbing surface, and wherein the outer circumferential section of the yoke constitutes the adsorbing surface always in contact with the rotating plate, and the inner circumferential section opposes the rotating plate via a gap.