| 摘要 |
A device for sharpening chain saw teeth, in particular a chain saw which is portable and applicable in the field, and where the chain is not to be taken off the chain saw blade when sharpened enables swinging of a grinding wheel ( 16 ) transversally to each tooth ( 8 ) of a chain ( 7 ) resulting in straight cutting faces of each tooth ( 8 ). The grinding wheel ( 16 ) of the relatively small diameter is rotated by an actuator ( 15 ) of the suitably small power and high number of the revolutions resulting in high cutting speed. Said actuator ( 15 ) can be either an electric motor, supplied with electricity from electric mains or a battery, a pneumatic motor or a hydraulic motor.
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