ELEVATOR BRAKE DEVICE, AND INSPECTION METHOD OF ELEVATOR BRAKE DEVICE

To provide an elevator brake device capable of easy grasping of the wear state of a bush.SOLUTION: The elevator brake device includes: a fixed member 41 that has a fixed core 42 and an excitation coil 43 and is formed with an insertion hole 47 with a circular cross-section; a movable iron core 44 having a cylindrical shape which is inserted into the insertion hole 47 so that it can move forward and backward; and a bush 46 provided between an outer peripheral surface 44c of the movable iron core 44 and an inner wall surface 47a of the insertion hole 47. The movable iron core 44 has a first-end surface 44a positioned on the back side of the insertion hole 47 and a second end face 44b positioned at the opening end side of the insertion hole 47. The outer peripheral surface 44c of the movable iron core 44 is formed with three or more grooves 51, 52, 53, and 54 arranged in the circumferential direction of the movable iron core 44, and each of the three or more grooves 51, 52, 53, and 54 extends along a central axis 44d of the movable iron core 44 and reaches the second end surface 44b.SELECTED DRAWING: Figure 3 【課題】ブッシュの摩耗状態を容易に把握できるエレベータ用ブレーキ装置を提供する。【解決手段】エレベータ用ブレーキ装置は、固定鉄心４２及び励磁コイル４３を有し、断面円形状の挿入穴４７が形成された固定部材４１と、円柱状の形状を有し、挿入穴４７に進退自在に挿入された可動鉄心４４と、可動鉄心４４の外周面４４ｃと挿入穴４７の内壁面４７ａとの間に設けられたブッシュ４６と、を備え、可動鉄心４４は、挿入穴４７の奥側に位置する第１端面４４ａと、挿入穴４７の開口端側に位置する第２端面４４ｂと、を有しており、可動鉄心４４の外周面４４ｃには、可動鉄心４４の周方向に配列した３つ以上の溝５１、５２、５３、５４が形成されており、３つ以上の溝５１、５２、５３、５４のそれぞれは、可動鉄心４４の中心軸４４ｄに沿って延伸して第２端面４４ｂに達している。【選択図】図３