Knife sharpening system

摘要

A knife sharpening system mountable in a small vehicle is disclosed. The knife sharpening system includes a grinding device including a motor, and an abrasive member directly connected to the motor without using a reduction device, to reduce loss of power transmitted from a battery to the abrasive member, and a water-proof device for preventing scattering of water and dust caused by rapid rotation of the abrasive member. The abrasive member can rotate using small force in accordance with direct connection of the abrasive member to the motor. Even when the abrasive member rotates at high speed, scattering of water or dust is prevented in accordance with direct connection of the abrasive member to the motor. Accordingly, the abrasive member can be driven using a battery of a small vehicle.

主权项

1. A knife sharpening system comprising:
a grinding device comprising:
a motor configured to be driven by a battery of a vehicle;first and second pulleys directly connected to the motor;a polishing brush directly connected to the first pulley and disposed at a central upper region of the system;cylindrical abrasive members directly connected to the second pulley and disposed below the polishing brush at opposite sides of the polishing brush, each cylindrical abrasive member having an abrasive surface on its elongated cylindrical surface in parallel to a shaft of the second pulley;a support bar disposed below the cylindrical abrasive members in parallel with an axis of the second pulley;knife support members mounted on the support bar; andwater injection nozzles disposed to inject water toward the cylindrical abrasive members, respectively; and a dust-proof device configured to prevent scattering of dust produced in the grinding device, the dust-proof device comprising:
a cover for shielding upper, lower, left and right sides of the cylindrical abrasive members and upper, lower, left and right sides of the polishing brush, except for front sides of the cylindrical abrasive members and a front side of the polishing brush; andscattering material blocking units mounted to the support bar beneath the abrasive members, respectively, the scattering material blocking units being elongated in a direction in parallel to cylindrical surfaces of the abrasive members and longer than the abrasive members to cover full lengths of the abrasive members; wherein: the cover comprises a lower cover member and an upper cover member pivotally mounted to a rear top portion of the lower cover member by a hinge; and the upper cover member comprises an upper cover portion and a bottom plate, the bottom plate comprising guide portions mounted to a lower end of the upper cover portion at opposite sides of the upper cover portion, respectively, each guide portion shaped like a channel that has a down-sloped bottom from back to front to guide discharge of materials scattering from the cylindrical abrasive members.