Support blade

Support shield (10) can be laterally displaced and is designed so that its external width can be increased. An Independent claim is also included for a construction or machine tool, especially a mobile hydraulic excavator (100), comprising the above support shield. Preferred Features: The shield consists of at least two shield parts (14). At least one of the shield parts can be moved relative to the other part. The shield has an intermediate part (16) inserted between the two shield parts. Intermediate parts having different widths are used to create different shield widths. The intermediate part is a tool or functional element, e.g. a pallet fork, tool box or fuel container.