Container unloading assembly for gravity unloading of particulate material

In a container removably mounted on a highway trailer for the transport and gravity unloading of particulate lading from the rear end of the container through a discharge outlet upon the raising of the front end of the container to tilt the container about its rear end, the container having a rear generally rectangular bulkhead and rear doors;

• the improvement comprising:
• a one piece generally rectangular rear support frame removably secured to opposed sides of said container between said rear bulkhead and said rear doors and adapted to support said rear bulkhead particularly upon tilting of the container to a predetermined angular relation with the trailer, said rear support frame having a lower discharge opening adjacent its lower end adapted to receive said discharge outlet therein for controlling the flow of particulate lading from the container;
• said one piece generally rectangular rear support frame being formed of rigid frame members secured to each other and including a pair of vertically extending side frame members along opposite sides of said support frame;
• and
• interfitting mounting means on said vertically extending side frame members and opposed sides of said container for removably mounting said rear support frame to opposed sides of said container.

A container unloading assembly for gravity unloading of particulate material from the rear end of a container removably mounted on a trailer upon the tilting of the front end of the container;

• the container having a rear bulkhead to support the particulate material particularly upon tilting of the container and rear doors adjacent the bulkhead which are opened for unloading the particulate material;
• said container unloading assembly comprising:
• a generally rectangular one piece rear support frame mounted between opposed sides of the container between said rear bulkhead and said rear doors, said one piece rear support frame being formed of connected metal frame members and including a pair of vertically extending side frame members along opposed sides of said support frame, said rear support frame having a lower discharge opening adjacent its lower end adapted to allow the particulate material to flow from the container for unloading and retaining means adjacent said lower opening;
• cooperating latching means on said side frame members and said opposed sides of said container for removably connecting said rear support frame to said opposed sides;
• and
• a discharge outlet having a housing removably mounted within said lower discharge opening and connected to said retaining means for positioning said discharge outlet accurately relative to said discharge opening for receiving the particulate material from said container during unloading.