Patent ID: 7377458
Filing Date: 2008-05-27
Classification: A47J

Abstract:
1. A grinder, comprising a body, an upper sleeve-shaped member pivoting on the body; the upper sleeve-shaped member having a sleeve extending to a lower end of an inside of the body; the sleeve dividing the inside of the body into an inner holding room, and an outer holding room; an upper covering member pivoting on the upper sleeve-shaped member; a connecting rod passing into and jamming up in a middle of the upper covering member; the connecting rod extending to a lower end of the inner holding room; an inner toothed ring secured to a lower end of the connecting rod; an intermediate toothed ring secured to a lower end of the sleeve; the intermediate toothed ring having a plurality of inner grinding teeth on an inner side; the intermediate toothed ring having a plurality of outer grinding teeth on an outer side thereof; and an outer toothed ring secured in a lower end of the body; the inner toothed ring and the inner grinding teeth of the intermediate toothed ring constituting an inner grinding mechanism, which will start functioning when the upper covering member is rotated relative to the upper sleeve-shaped member as well as the body; the outer grinding teeth of the intermediate toothed ring and the outer toothed ring constituting an outer grinding mechanism, which will start functioning when the upper sleeve-shaped member is rotated relative to the body.