| 摘要 |
A blade sharpener includes a thin cylindrical sharpening rod made of a ceramic material which is loaded with a strong abrasive. This rod is equipped at each end with a conical guide-guard. Means is provided to position the rod with one hand so that the other hand can be used to draw the blade simultaneously along the rod and along the blade from near the blade handle toward the blade tip. The angle of the conical surfaces of the guide-guards with respect to the sharpening rod is the same as the desired angle of the blade to the rod while sharpening. The blade is initially positioned flat against the conical surface of one of the guide-guards to set the angle of the blade to the rod, and that angle is manually mantained during each sharpening stroke.
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