|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||451/179; 451/231; 451/375; 451/349|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 9 인용 특허 : 6|
A portable drill sharpener includes a casing, a sand-wheel, a positioning device, a first grinding unit and a second grinding unit, a holding member for positioning a drill to be ground, a first adjustment unit and a second adjustment unit respectively connected to the first and second grinding units. Each of the first and second adjustment unit includes a guide rail and a sliding frame is movably mounted on the guide rail. The fist and second grinding units have at least one axle along which the first and second grinding units are adjusted.
What is claimed is: 1. A portable drill sharpener comprising: a casing (10) having a power supply (100), said power supply driving a sand-wheel (20); a positioning device (30), said positioning device being coupled to said casing; a first grinding unit (40) being fixed on said casing (10) and displaceable in a horizontal direction, said first grinding unit (40) having an adjustment slot (41) and an adjustment bolt (42) extending through said adjustment slot ( 41), said adjustment bolt (42) fixing said first grinding unit (40) on said casing (10); a rota...