Curtainside movable wall system

1. A cargo containment body, for attachment to a transportation carrier and containment of cargo being transported by the transportation carrier, the cargo containment body having a longitudinal axis extending between a front and a rear of the cargo containment body, having a lateral axis orthogonal to the longitudinal axis and extending between first and second sides of the cargo containment body, and having a vertical axis orthogonal to the longitudinal axis and to the lateral axis and extending between a top and a bottom of the cargo containment body, the cargo containment body comprising:

at least one movable wall panel that is movable in the direction of the lateral axis, and that always remains substantially parallel to the longitudinal axis and substantially parallel to the vertical axis; and

at least one trolley rail in the top of the cargo containment body, the at least one trolley rail extending substantially parallel to the lateral axis between the first side and the second side;

wherein the at least one movable wall panel is configured to be selectively movable along the at least one trolley rail;

wherein the at least one movable wall panel is sufficiently rigid so that it constitutes a wall to which the cargo may be stably affixed on the second side, if the at least one movable wall panel is secured at the second side; and

alternatively, wherein the cargo can be loaded and unloaded through the second side if the at least one movable wall panel is moved away from the second side and toward the first side.

2. The cargo containment body as in claim 1 , further comprising:

at least one trolley that is movable along the at least one trolley rail between the first side and the second side;

wherein the at least one movable wall panel is suspended from the at least one trolley so that the at least one movable wall panel is movable with the at least one trolley between the first side and the second side.

3. The cargo containment body as in claim 2 , wherein

the at least one trolley rail comprises a plurality of trolley rails; and

the at least one trolley comprises a plurality of trolleys, each of the plurality of trolleys being movable along only one of the plurality of trolley rails.

4. The cargo containment body as in claim 3 , wherein

the at least one movable wall panel comprises a plurality of movable wall panels;

each of the plurality of trolleys supports by suspension only one of the plurality of movable wall panels; and

each of the plurality of movable wall panels is movable between the first side and the second side independently of whether another one of the plurality of movable wall panels is being moved.

5. The cargo containment body as in claim 4 , further comprising a plurality of lock rods, each of the plurality of lock rods being appurtenant to one of the plurality of movable wall panels for securing that one of the plurality movable wall panels so that it does not move.

6. The cargo containment body as in claim 2 , wherein

the at least one trolley rail comprises at least two trolley rails;

the at least one trolley comprises at least two trolleys, with at least one of the at least two trolleys being movable along each one of the at least two trolley rails, respectively; and

the at least one movable wall panel is suspended from at least two of the at least two trolleys.

7. The cargo containment body as in claim 1 , further comprising at least one lock rod for securing the at least one movable wall panel so that it does not move.

8. The cargo containment body as in claim 1 , further comprising:

a top lock rod appurtenant to one of the at least one movable wall panels; and

a top lock rod keeper fixed in the top, and structured and dimensioned to receive a top end of the top lock rod;

wherein, when the top lock rod is received in the top lock rod keeper, the top lock rod will secure said one of the at least one movable wall panels so that said one of the at least one movable wall panels does not move.

9. The cargo containment body as in claim 8 , further comprising:

a vertical top lock rod sleeve in which the top lock rod is movable; and

a top lock rod handle attached to the top lock rod and protruding through a gap in the sleeve;

wherein a lower portion of the gap limits rotation of the handle about an axis of the top lock rod and, if the handle lifts the top lock rod in the sleeve until the top end is received in the top lock rod keeper, an upper portion of the gap allows rotation of the handle about the axis of the top lock rod to a resting position in a step notch so as to retain the top end in the top lock rod keeper.

10. The cargo containment body as in claim 1 , further comprising:

a bottom lock rod appurtenant to one of the at least one movable wall panels; and

a bottom lock rod keeper fixed in the bottom, and structured and dimensioned to receive a bottom end of the bottom lock rod;

wherein, when the bottom lock rod is received in the bottom lock rod keeper, the bottom lock rod will secure said one of the at least one movable wall panels so that said one of the at least one movable wall panels does not move.

11. The cargo containment body as in claim 10 , further comprising:

a vertical bottom lock rod sleeve in which the bottom lock rod is movable; and

a bottom lock rod handle attached to the bottom lock rod and protruding through a gap in the sleeve;

wherein a lower portion of the gap limits rotation of the handle about an axis of the bottom lock rod and, if the handle lifts the bottom lock rod in the sleeve until the bottom end is removed from the bottom lock rod keeper, an upper portion of the gap allows rotation of the handle about the axis of the bottom lock rod to a resting position in a step so as to retain the bottom end out of the bottom lock rod keeper while said one of the at least one movable wall panels is being moved.

12. The cargo containment body as in claim 1 , further comprising:

a fixed vertical wall on the first side, the fixed vertical wall extending substantially parallel to the longitudinal axis between the front and the rear and extending substantially parallel to the vertical axis between the top and the bottom.

13. The cargo containment body as in claim 1 , further comprising:

a ceiling in the top;

a floor in the bottom;

a vertical front wall in the front; and

a curtain track on the second side, the curtain track extending substantially parallel to the longitudinal axis between the front and the rear.

14. The cargo containment body as in claim 1 , further comprising:

at least one first side movable wall panel that is movable in the direction of the lateral axis along the at least one first trolley rail, and that always remains substantially parallel to the longitudinal axis and substantially parallel to the vertical axis;

wherein the at least one first side movable wall panel is sufficiently rigid so that it constitutes a wall to which the cargo may be stably affixed on the first side, if the at least one first movable wall panel is secured at the first side; and

alternatively, wherein the cargo can be loaded and unloaded through the first side if the at least one first side movable wall panel is moved away from the first side and toward the second side.

15. The cargo containment body as in claim 1 , wherein the at least one movable wall panel is movable between the first side and the second side on at least one floor track extending substantially parallel to the lateral axis between the first side and the second side.

16. A transportation carrier comprising:

a motor-powered truck vehicle; and

a cargo containment body as in claim 1 that is attached to the truck vehicle.

17. The cargo containment body as in claim 1 , further comprising means for moving the at least one movable wall panel between the first side and the second side along the at least one trolley rail.

18. The cargo containment body as in claim 1 , further comprising means for securing the at least one movable wall panel so that it does not move.

19. The cargo containment body as in claim 1 , further comprising:

a ceiling in the top;

a floor in the bottom;

a vertical front wall in the front; and

means for supporting a curtain on the second side.

20. A method for including in a single cargo containment body both the ability to load and unload lengthy cargo through a second side of the cargo containment body and the ability to stably affix small cargo to the second side, the cargo containment body being for attachment to a transportation carrier and containment of cargo being transported by the transportation carrier, the cargo containment body having a longitudinal axis extending between a front and a rear of the cargo containment body, having a lateral axis orthogonal to the longitudinal axis and extending between a first side and the second side of the cargo containment body, and having a vertical axis orthogonal to the longitudinal axis and to the lateral axis and extending between a top and a bottom of the cargo containment body, the method comprising:

providing at least one movable wall panel that is movable in the direction of the lateral axis, and that always remains substantially parallel to the longitudinal axis and substantially parallel to the vertical axis;

providing at least one trolley rail in the top of the cargo containment body extending substantially parallel to the lateral axis between the first side and the second side to allow the at least one movable wall panel to move in the direction of the lateral axis along the at least one trolley rail;

wherein the at least one movable wall panel is sufficiently rigid so that it constitutes a wall to which the small cargo may be stably affixed on the second side, if the at least one movable wall panel is secured at the second side; and

alternatively, wherein the lengthy cargo can be loaded and unloaded through the second side if the at least one movable wall panel is moved away from the second side and toward the first side.

21. The method as in claim 20 , further comprising:

providing at least one trolley that is movable along the at least one trolley rail between the first side and the second side; and

suspending the at least one movable wall panel from the at least one trolley so that the at least one movable wall panel is movable with the at least one trolley between the first and the second side.

22. The method as in claim 21 , wherein

the at least one trolley rail comprises a plurality of trolley rails;

the at least one trolley comprises a plurality of trolleys, each of the plurality of trolleys being movable along only one of the plurality of trolley rails;

the at least one movable wall panel comprises a plurality of movable wall panels;

each of the plurality of trolleys supports by suspension only one of the plurality of movable wall panels; and

each of the plurality of movable wall panels is movable between the first side and the second side independently of whether another one of the plurality of movable wall panels is being moved.

23. The method as in claim 22 , further comprising providing a plurality of lock rods, each of the plurality of lock rods being appurtenant to one of the plurality of movable wall panels for securing that one of the plurality movable wall panels so that it does not move.

24. The method as in claim 20 , further comprising providing at least one lock rod for securing the at least one movable wall panel so that it does not move.

25. The method as in claim 20 , further comprising:

providing a ceiling in the top;

providing a floor in the bottom;

providing a vertical front wall in the front; and

providing a curtain track on the second side, the curtain track extending substantially parallel to the longitudinal axis between the front and the rear.