Wear member

Abstract

A wear part for surfaces exposed to abrasive material. The wear part is particularly well suited for use on earth working equipment used in environments where dead bedding material is possible. The wear part in the form of a wear runner has stops to cause material to dead bed and at least one ramp to minimize the wear caused by the dead bed material.

1 . A wear member for earth working equipment, the wear member comprising a leading surface facing a primary direction of a flow of earthen material over the wear member, a trailing surface generally opposite the leading surface, a top surface to engage the earthen material and protect the earth working equipment, and an attachment surface to secure the wear member to a mounting surface of the earth working equipment, wherein the leading surface forms an included angle of less than 90 degrees to the mounting surface to cause the earthen material to dead bed on the earth working equipment. 
     
     
         2 . A wear member in accordance with  claims 1  wherein the wear member has a thickness that generally narrows from the leading surface to the trailing surface. 
     
     
         3 . A wear member in accordance with  claims 1  wherein the wear member has a raised end projecting above the top surface adjacent the trailing surface, wherein the raised end includes an abutment surface generally facing the primary direction of flow of earthen material over the wear member so that the abutment surface dead beds the wear member forward of the abutment surface. 
     
     
         4 . A wear member in accordance with  claim 1  wherein the trailing surface forms an included angle of less than 90 degrees to the mounting surface. 
     
     
         5 . A wear member in accordance with  claim 1  wherein the included angles formed by the leading surface and by the trailing surface are each less than about 85 degrees. 
     
     
         6 . A wear member in accordance with  claim 1  wherein the included angles formed by the leading surface and by the trailing surface are each greater than about 50 degrees. 
     
     
         7 . A wear member in accordance with  claim 1  wherein the leading surface generally creates a skip effect for the earthen material rearward of the leading surface. 
     
     
         8 . A wear member in accordance with  claim 1  including a lifting eye spaced from the attachment surface. 
     
     
         9 . A wear member in accordance with  claim 8  wherein the lifting eye extends no higher than the top surface. 
     
     
         10 . A wear member in accordance with  claim 1  wherein the top surface includes at least one cavity for collecting the earthen material. 
     
     
         11 . A wear member in accordance with  claim 1  wherein at least a portion of the wear member is overlaid with a hardfacing material. 
     
     
         12 . A wear member in accordance with  claim 1  wherein the leading surface is planer. 
     
     
         13 . A wear member in accordance with  claim 1  wherein the attachment surface defines a cavity to engage a base secured to the earth working equipment. 
     
     
         14 . A wear member in accordance with  claim 1  including a hole to receive a lock to secure the wear member to the earth working equipment. 
     
     
         15 . A wear member for earth working equipment, the wear member comprising a leading surface facing a primary direction of a flow of earthen material over the wear member, a trailing surface generally opposite the leading surface, a top surface extending generally between the leading surface and the trailing surface to engage the earthen material and protect the earth working equipment, an attachment surface to secure the wear member to earth working equipment, and a raised end projecting above the top surface adjacent the trailing surface, wherein the raised end includes an abutment surface generally facing the primary direction of flow of earthen material over the wear member to cause the earthen material to dead bed on the wear member forward of the abutment surface. 
     
     
         16 . A wear member in accordance with  claims 15  wherein the wear member has a thickness that generally narrows from the leading surface to the trailing surface. 
     
     
         17 . A wear member in accordance with  claim 15  wherein the raised end includes a ramp inclined away from the trailing end in a direction toward the leading end. 
     
     
         18 . A wear member in accordance with any one of the preceding claims wherein the trailing surface forms an included angle of less than 90 degrees to the mounting surface. 
     
     
         19 . A wear member in accordance with  claim 15  wherein the included angles formed by the leading surface and by the trailing surface are each less than about 85 degrees. 
     
     
         20 . A wear member in accordance with  claim 15  wherein the included angles formed by the leading surface and by the trailing surface are each greater than about 50 degrees. 
     
     
         21 . A wear member in accordance with  claim 15  wherein the leading surface generally creates a skip effect for the earthen material rearward of the leading surface. 
     
     
         22 . A wear member in accordance with  claim 15  including a lifting eye spaced from the attachment surface. 
     
     
         23 . A wear member in accordance with  claim 22  wherein the lifting eye extends no higher than the top surface. 
     
     
         24 . A wear member for earth working equipment, the wear member comprising a leading surface facing a primary direction of a flow of earthen material over the wear member to cause the earthen material to dead bed on the earth working equipment, a trailing surface generally opposite the leading surface, a top surface to engage the earthen material and protect the earth working equipment, and an attachment surface to secure the wear member to a mounting surface of the earth working equipment, wherein the wear member generally narrows from the leading surface to the trailing surface. 
     
     
         25 . A wear member in accordance with  claims 24  wherein the wear member has a raised end projecting above the top surface adjacent the trailing surface, wherein the raised end includes an abutment surface generally facing the primary direction of flow of earthen material over the wear member so that the abutment surface dead beds the wear member forward of the abutment surface. 
     
     
         26 . A wear member in accordance with  claim 25  wherein the raised end includes a ramp inclined away from the trailing end in a direction toward the leading end. 
     
     
         27 . A wear member in accordance with  claim 24  wherein the trailing surface forms an included angle of less than 90 degrees to the mounting surface. 
     
     
         28 . A wear member in accordance with  claim 24  wherein the included angles formed by the leading surface and by the trailing surface are each less than about 85 degrees. 
     
     
         29 . A wear member in accordance with  claim 24  wherein the included angles formed by the leading surface and by the trailing surface are each greater than about 50 degrees. 
     
     
         30 . A wear member in accordance with  claim 24  wherein the leading surface generally creates a skip effect for the earthen material rearward of the leading surface. 
     
     
         31 . A wear member in accordance with  claim 24  including a lifting eye spaced from the attachment surface. 
     
     
         32 . A wear member in accordance with  claim 31  wherein the lifting eye extends no higher than the top surface. 
     
     
         33 . A wear member for earth working equipment, the wear member comprising a leading surface facing a primary direction of a flow of earthen material during use of the earth working equipment, a trailing surface facing in a direction generally opposite the leading surface, a top surface extending generally between the leading surface and the trailing surface, an attachment surface to secure the wear member to earth working equipment, and an abutment above and rearward of the top surface, the abutment including a ramp inclined down and away from the leading surface. 
     
     
         34 . A wear member in accordance with  claim 33  wherein the leading surface generally creates a skip effect for the earthen material rearward of the leading surface. 
     
     
         35 . A wear member in accordance with  claim 33  including a lifting eye spaced from the attachment surface. 
     
     
         36 . A wear member in accordance with  claim 35  wherein the lifting eye extends no higher than the top surface. 
     
     
         37 . A wear member for earth working equipment, the wear member including a leading surface facing a primary direction of a flow of earthen material during use of the earth working equipment, a trailing surface, and a top surface extending generally between the leading surface and the trailing surface, an attachment surface to secure the wear member to earth working equipment, and a lifting eye that extends no higher than the top surface. 
     
     
         38 . A wear member in accordance with  claim 37  wherein the top surface is inclined so that the wear member generally narrows from the leading surface toward the trailing surface. 
     
     
         39 . A wear member in accordance with  claim 37  including an abutment above and rearward of the top surface. 
     
     
         40 . A wear member in accordance with any one of  claims 37  wherein the abutment includes a ramp inclined downward away from the leading surface.