Charge hopper with liner for concrete mixer
AssigneeOshkosh Corporation
InventorClint Glunz
Life of this patent
Estimating the term…
Abstract
A mixing drum assembly includes a frame, a mixing drum rotatably coupled to the frame, and a charge hopper coupled to the frame and positioned to direct material into the mixing drum. The charge hopper includes a hopper frame and a liner extending along an inner surface of the hopper frame and at least partially defining a passage extending between an inlet and an outlet. The hopper frame includes a first material and the liner includes a second material different from the first material. The liner is removably coupled to the hopper frame.
Claims17
A mixing drum assembly, comprising:
- a frame;
- a mixing drum rotatably coupled to the frame;
- and
- a charge hopper coupled to the frame and positioned to direct material into the mixing drum, the charge hopper comprising:
- a hopper frame;
- a liner extending along an inner surface of the hopper frame and at least partially defining a passage extending between an inlet and an outlet;
- and
- a top guard removably coupled to the liner and positioned adjacent the inlet, the top guard including a flange that at least partially covers both a top surface of the liner and a top surface of the hopper frame,
- wherein the hopper frame includes a first material and the liner includes a second material different from the first material, and wherein the liner is removably coupled to the hopper frame.
A charge hopper for a concrete mixer, the charge hopper comprising:
- a hopper frame configured to be coupled to a frame of the concrete mixer;
- a liner extending along an inner surface of the hopper frame and defining a passage extending between an inlet and an outlet;
- a top guard positioned adjacent the inlet and extending along an inner surface of the liner such that the liner extends between the hopper frame and the top guard;
- and
- a plurality of fasteners extending through the hopper frame and the liner to couple the liner to the hopper frame, wherein at least one of the fasteners extends through the top guard and the liner to removably couple the top guard and the liner to the hopper frame.
A method of maintaining a charge hopper of a concrete mixer, comprising:
- providing the charge hopper, the charge hopper including a hopper frame, a first liner coupled to the hopper frame, and a top guard coupled to the hopper frame and the first liner such that the first liner extends between the hopper frame and the top guard, wherein the first liner at least partially defines a passage through the charge hopper;
- removing the first liner from the hopper frame and the top guard, wherein removing the first liner from the hopper frame comprises removing a first fastener that couples the first liner to the hopper frame;
- coupling a second liner to the hopper frame using a second fastener, the second liner at least partially defining the passage through the charge hopper;
- and
- coupling the top guard to the hopper frame and the second liner using the second fastener such that the top guard extends along an inner surface of the second liner and over the hopper frame.
Dependencies are inferred from the claim text.