Knife-grinder

Abstract

A knife-grinder has a body and a grinding device. The body has a handle segment and a mounting segment. The handle segment is formed on a rear end of the body. The mounting segment is formed on a front end of the body, is formed on and protrudes from the handle segment and has a chamber, an opening, two pivot holes and a major grinding mouth. The grinding device is detachably mounted in the body and has two pivot rods, a first grinding element and a second grinding element. The pivot rods are respectively mounted in the pivot holes of the mounting segment. The grinding elements are respectively, rotatably and movably mounted around the pivot rods, and each grinding element has a spacing disk and two grinding slices. The grinding slices are respectively, rotatably and movably mounted around the pivot rods beside the spacing disks in an alternative arrangement.

1 . A knife-grinder comprising:
 a body having
 a front end; 
 a rear end; 
 a handle segment formed on the rear end of the body and having a forming end and a hanging end; and 
 a mounting segment formed on the front end of the body, formed on and protruding from the forming end of the handle segment and having
 a bottom; 
 a top; 
 two opposite sidewalls; 
 a chamber formed in the mounting segment between the bottom and the top of the mounting segment; 
 an opening formed through the bottom of the mounting segment and communicating with the chamber; 
 two pivot holes formed through the opposite sidewalls of the mounting segment at an interval and communicating with the chamber; and 
 a major grinding mouth formed through the top of the mounting segment between the pivot holes and communicating with the chamber; and 
 
   a grinding device detachably mounted in the body and having
 two pivot rods respectively mounted in the pivot holes of the mounting segment; 
 a first grinding element rotatably and movably mounted around one of the pivot rods and having
 a spacing disk mounted around the corresponding pivot rod and having a diameter; and 
 two grinding slices rotatably and movably mounted around the corresponding pivot rod and each grinding slice having
 a diameter being larger than the diameter of the spacing disk of the first grinding element; and 
 an outer periphery partially extending out of the chamber and extending into the major grinding mouth of the mounting segment; and 
 
 
 a second grinding element rotatably and movably mounted around the other pivot rod and having
 a spacing disk mounted around the corresponding pivot rod and having a diameter; and 
 two grinding slices rotatably and movably mounted around the corresponding pivot rod, mounted in the chamber in an alternative arrangement with the grinding slices of the first grinding element and each grinding slice having
 a diameter being larger than the diameter of the spacing disk of the second grinding element; and 
 
 an outer periphery having partially extending out of the chamber and extending into the major grinding mouth of the mounting segment. 
 
   
     
     
         2 . The knife-grinder as claimed in  claim 1 , wherein
 the mounting segment has a minor grinding mouth formed through the top of the mounting segment between the forming end of the handle segment and one of the pivot holes of the mounting segment; and   the outer periphery of each one of the grinding slices of the second grinding element partially extending out of the chamber and extending into the minor grinding mouth of the mounting segment.   
     
     
         3 . The knife-grinder as claimed in  claim 2 , wherein
 the body is made of two half-casings; and   the half-casings are connected securely to each other by multiple fasteners to form the body.   
     
     
         4 . The knife-grinder as claimed in  claim 3 , wherein the handle segment has a hanging ring formed on and protruding from the hanging end of the handle segment. 
     
     
         5 . The knife-grinder as claimed in  claim 1 , wherein the handle segment has a hanging ring formed on and protruding from the hanging end of the handle segment. 
     
     
         6 . The knife-grinder as claimed in  claim 1 , wherein
 the body is made of two half-casings; and   the half-casings are connected securely to each other by multiple fasteners to form the body.