| 摘要 |
A blade sharpener ( 10 ) comprises sharpening strip providing carriers ( 12 ) and ( 14 ) each including an obliquely extending linear sharpening strip providing rod ( 16 ) and carrier movement non-interference guiding means in the form of a slot defining formation formed by facing rail pairs ( 18 ), ( 20 ) facing one another across a slot ( 22 ). The rail pairs ( 18 ) and ( 20 ) form part of a carrier support frame ( 24 ) to which the carriers ( 12 ), ( 14 ) are mounted to be displaced in diametrically opposed directions and along the spacings formed between the rails of the rail pairs ( 18 ), ( 20 ). A crossover point ( 28 ) is defined between the rods ( 16 ) within which the cutting edge of the blade of a knife is in an abrasion fashion moved during a sharpening action. The crossover point ( 28 ) is constrained to move along a linear sharpening path extending along the slot ( 22 ) during sharpener use. The carriers ( 12 ), ( 14 ) are biased by springs ( 26 ) to cause the return of the crossover point ( 28 ) to an inter strip commencement crossover position. |
