Abstract: A hoist is provided with a braking mechanism comprising: a motor cover that is provided with an outer wall which is provided such that the inner diameter of an inner peripheral portion thereof increases with proximity to one side in the axial direction from the other side; a drum member that is provided with an outer peripheral portion which is located radially inward of the inner peripheral portion of the outer wall and which faces the inner peripheral portion; and a brake shoe that is mounted on the outer peripheral portion. The inner peripheral portion is provided with a blast-treated portion which is blast-treated upon impact by media which contains large amounts of sharp edges among media which contains large amounts of sharp edges and media which contains large amounts of non-sharp edges.

Abstract: A brake motor is provided with a braking mechanism comprising: a motor cover that is provided with an outer wall which is provided such that the inner diameter of an inner peripheral portion thereof increases with proximity to one side in the axial direction from the other side; a drum member that is provided with an outer peripheral portion which is located radially inward of the inner peripheral portion of the outer wall and which faces the inner peripheral portion; and a brake shoe that is mounted on the outer peripheral portion. The inner peripheral portion is provided with a blast-treated portion which is blast-treated upon impact by media which contains large amounts of sharp edges among media which contains large amounts of sharp edges and media which contains large amounts of non-sharp edges.