| 摘要 |
PURPOSE:To simplify the fitting work of a brush to other equipment by retaining said brush at a frame via a brush holder board and a brush holder grip. CONSTITUTION:Grooves 1b are formed on the inner peripheral face 1a of a frame 1. A brush holder grip 2 composed of almost circular spring steel is fitted into said grooves 1b. Also, a brush holder board 3 composed of a hollow disc type insulating plate is fixed by screws 4 to the top surface of said brush holder grip 2. Also, brush holders 5 of said grip 2 are fitted by screws 6 to said brush holder board 3 so as to turn rectangular with each other, Further, a brush 8 is provided inside said brush holders 5.
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