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Publication of JPS308206B1publicationCriticalpatent/JPS308206B1/ja
H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
H01R39/00—Rotary current collectors, distributors or interrupters
H01R39/02—Details for dynamo electric machines
H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof