EDDY CURRENT TYPE DECELERATION DEVICE

PROBLEM TO BE SOLVED: To firmly support a permanent magnet in an omnidirectional manner with the reduction of costs and a production time.SOLUTION: In a deceleration device of an eddy current type, in which a permanent magnet 3 is rotated in a circumferential direction to switch between braking on and off, each permanent magnet 3 adhered to a magnet support ring 4 is supported by the disposition of a non-magnetic elastic fixation member 11 of a bathtub shape between each permanent magnet 3. Thus, the strength of the fixation member can be secured if an impact load acts on the fixation member of the permanent magnet at a switchover between the braking on and off, so that the permanent magnet can be stably fixed over a long term. Also, the reduction of production time and costs is achieved. 【課題】製造時間の短縮とコスト削減ができ、さらに、全方向に永久磁石を強固に支持できるようにする。【解決手段】永久磁石３を円周方向に回動させて制動オンと制動オフを切り替えるタイプの渦電流式減速装置において、磁石支持リング４に接着した永久磁石３を、各永久磁石３の間に、バスタブ形状の非磁性の弾性固定部材１１を配置することによって支持する。【効果】制動オンと制動オフを切り替えた際に、永久磁石の固定部材に衝撃荷重が作用した場合でも、固定部材の強度を確保でき、永久磁石を長期に亘って安定して固定することができる。また、製造時間の短縮とコスト削減が図れる。【選択図】図１