| 摘要 |
Brush holder contains a brush box (2) made of the coiled pla te and there is a brush (3) of the rectangular cross-section plac ed. The brush box (2) has at least opposite to one of the longitu dinal side surfaces (3.1, 3.2) of the brush (3) made a contact pr essure surface step (2.5, 2.6). The cross-section of the brush bo x (2) is larger than the cross-section of the receptacle (1.1) of the U-shape of the brush holder (1), into which the brush box (2 ) is inserted.
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