| 摘要 |
PURPOSE:To make the device small and simple by giving the armature or rotor shaft of a motor a hollow construction, and by allowing this hollow to accommodate a wiping, polishing or grinding means for brushes etc. CONSTITUTION:The shaft 5 of a motor, in particular its portion corresponding to the armature or rotor shaft, is given a hollow construction so as to accommodate brushes 31. The brushes 31 are previously installed at a frame 32 and pushed into the hollow one after another followed by fastening into a solid single body. The shape, material and mounting means of the brushes 31 can be considered in many different kinds to be selected according to the shape, material and purpose for processing of the work (b) to be processed, and further other members than brush, for ex. file, rubber and sponge, can be selected to perform wiping, polishing and grinding. |
