Excavator boom

Abstract

This invention relates to a box section made of an upper and lower plate and side plates. The upper and lower plates and the side plates thus form a weldment. According to the invention, provision is made for the interior of the box section to be accessible from the outside through multiple cutouts that are arranged in the longitudinal direction of the excavator boom in the side plates and/or in the upper and/or lower plates.

1 . An excavator boom with a box section made from the upper and lower plates and side plates, wherein
 the interior of the box section is accessible from the outside through multiple cutouts that are arranged successively in the longitudinal direction of the excavator boom in the side plates and/or in the upper and/or lower plates.   
     
     
         2 . The excavator boom of  claim 1 , wherein the box section is welded at least in part from the inside as well. 
     
     
         3 . The excavator boom of  claim 1 , wherein the interior walls of the box section are painted at least in part. 
     
     
         4 . The excavator boom of  claim 1 , wherein power lines run inside the box section, and they are advantageously power lines, hydraulic lines and/or electrical lines. 
     
     
         5 . The excavator boom of  claim 4 , wherein the power lines run along the neutral axis of the excavator boom. 
     
     
         6 . The excavator book of  claim 1 , wherein coupling elements and/or control elements are arranged for a tool inside the box section that can be placed on the excavator boom. 
     
     
         7 . The excavator boom of  claim 6 , wherein the coupling elements are quick couplings for the hydraulics. 
     
     
         8 . The excavator boom of  claim 1 , wherein an electrical device, such as a sensor, camera or spotlight, is arranged inside the box section. 
     
     
         9 . The excavator boom of  claim 1 , wherein smaller cutouts are made in a first section with a smaller box section cross-section than in a second area of the box section with a larger cross-section. 
     
     
         10 . The excavator boom of  claim 1 , wherein, smaller cutouts are made at the tip of the excavator boom, corresponding to the narrowing cross-section of the box section. 
     
     
         11 . The excavator boom of  claim 1 , wherein the two side plates have essentially identical cutouts that are arranged successively along the longitudinal direction of the excavator boom. 
     
     
         12 . The excavator boom of  claim 1 , wherein cutouts are made that are essentially in the form of a triangle, particularly in the side plates. 
     
     
         13 . The excavator boom of  claim 1 , wherein cutouts are made in the upper and/or lower plate that are essentially in the form of a drop. 
     
     
         14 . An excavator with an excavator boom of  claim 1 . 
     
     
         15 . The use of an excavator or an excavator boom of  claim 1  for underwater work. 
     
     
         16 . The excavator boom of  claim 2 , wherein the interior walls of the box section are painted at least in part. 
     
     
         17 . The excavator boom of  claim 16 , wherein power lines run inside the box section, and they are advantageously power lines, hydraulic lines and/or electrical lines. 
     
     
         18 . The excavator boom of  claim 3 , wherein power lines run inside the box section, and they are advantageously power lines, hydraulic lines and/or electrical lines. 
     
     
         19 . The excavator boom of  claim 2 , wherein power lines run inside the box section, and they are advantageously power lines, hydraulic lines and/or electrical lines. 
     
     
         20 . The excavator boom of  claim 17 , wherein the power lines run along the neutral axis of the excavator boom.