Patent ID: 6709320
Filing Date: 2004-03-23
Classification: B24D

Abstract:
A knife sharpener comprising:a handle and an operation portion in which a chamber is defined, an aperture defined through a top of the operation portion and communicating with the camber; two grinding members respectively received in the chamber and each of the two grinding members having a grinding surface, an angle defined between the two respective grinding surfaces and communicating with the aperture, each of the two grinding members having a rod extending radially therefrom; a passage defined in the operation portion and a shaft rotatably received in the passage, two spiral grooves defined in an outer surface of the shaft and the two respective rods engaged with the two spiral grooves, and a positioning member engaged with the shaft, the positioning member is a pin extending through the operation portion and the shaft has a plurality of recesses, a lower end of the positioning member received in one of the recesses.