Device For Crushing And/Or Cutting Material, As Well As A Piercing Element, Suitable For Mounting To The Free Nose End Of A Mouth Of Such A Device

Abstract

A device for breaking and/or cutting material, comprising a frame to be coupled to the boom of an excavation machine or the like, a first jaw provided with a first cutting surface, which takes up a fixed position relative to the frame in use, a second jaw provided with a second cutting surface and a free nose end, which second jaw works together with the first jaw and which is pivotable about a pivot relative to the frame, toward and away from the first jaw, wherein the second jaw is provided with an exchangeable piercing element at its free nose end for piercing the material to be broken and/or cut.

What is claimed is: 
     
         1 . A device for breaking and/or cutting material, comprising
 a frame to be coupled to the boom of an excavation machine,   a first jaw provided with a first cutting surface, which takes up a fixed position relative to the frame in use,   a second jaw provided with a second cutting surface and a free nose end, which second jaw works together with the first jaw and which is pivotable about a pivot relative to the frame, toward and away from the first jaw, wherein   the second jaw is provided with an exchangeable piercing element at its free nose end for piercing a material to be broken and/or cut,   wherein the piercing element comprises two element parts, which element parts are mounted on the free nose end on either side thereof, and wherein each element part comprises a piercing part, which abuts against a corresponding piercing part of the other element part, and a flange part that extends along the free nose end, wherein the two piercing parts as well as the free nose end are provided with coinciding slots, in which a locking pin can be received.   
     
     
         2 . The device according to  claim 1 , wherein the piercing parts of the two element parts can be connected together. 
     
     
         3 . The device according to  claim 1 , wherein the flange parts of the two element parts and also the nose end are provided with through holes, in which fixing bolts can be received. 
     
     
         4 . The device according to  claim 3 , wherein the through holes are in a straight line with the coinciding slots. 
     
     
         5 . The device according to  claim 1 , wherein the flange part that extends along the free nose end can be received in a recess formed in the free nose end. 
     
     
         6 . The device according to  claim 1 , wherein the two piercing parts abut against the side of the free nose end that faces the first jaw. 
     
     
         7 . The device according to  claim 1 , wherein the two piercing parts have interlocking profiles. 
     
     
         8 . A piercing element mounted on the free nose end of a jaw of a device for breaking and/or cutting material according to  claim 1 .