A wagon includes a base and at least two upstanding walls forming a container for cargo. At least one of the upstanding walls is pivotally mounted to the base for pivoting between an unfolded position for use and a folded position for storage and transport. In some embodiments, the wagon includes a
A wagon includes a base and at least two upstanding walls forming a container for cargo. At least one of the upstanding walls is pivotally mounted to the base for pivoting between an unfolded position for use and a folded position for storage and transport. In some embodiments, the wagon includes a minimized-play feature that eliminates slack or play when in the unfolded use position for structural integrity. And in some embodiments, the wagon includes a gang-operated latch system for releasably securing the walls in the unfolded use position that is quick, easy, and reliable to use for folding and unfolding.
대표청구항▼
1. A wagon for cargo, comprising: a base;at least first and second walls that extend generally upright from the base in a use position to help hold the cargo, wherein the second wall is movably mounted to the base and moves relative to the base between the upright use position and a storage position
1. A wagon for cargo, comprising: a base;at least first and second walls that extend generally upright from the base in a use position to help hold the cargo, wherein the second wall is movably mounted to the base and moves relative to the base between the upright use position and a storage position collapsed into a compact arrangement; anda minimized-play feature including at least one ramped surface on one of the first and second walls, an interference between the first and second walls, and a resilient deflection feature of the first wall, wherein when the second wall is moved from the collapsed storage position toward the upright use position, the first and second walls interfere with each other, the ramped surface of the first or second wall slidingly engages the other one of the first and second walls to generate a lateral displacement force, the first wall is resiliently displaced generally laterally by the lateral displacement force as permitted by the resilient deflection feature to provide clearance for the second wall to move into the upright use position, and the resilient displacement of the first wall generates a compression force on the second wall in the upright use position so that the first and second walls are held together tightly under pressure to prevent wiggling relative to each other. 2. The wagon of claim 1, wherein the at least one ramped surface includes a first ramped surface on the first wall and a second ramped surface on the second wall that engage each other when the second wall is moved into the upright use position. 3. The wagon of claim 1, wherein the resilient deflection feature of the first wall includes a portion of the first wall being made of a material with an elastic deformation property sufficient to permit the resilient displacement of the first wall. 4. The wagon of claim 3, wherein the at least one ramped surface is positioned on an upper portion of the first or second wall. 5. The wagon of claim 1, wherein the first and second walls include first and second retainers, respectively, that engage each other when the first and second walls are in the upright use position to prevent the first wall from lateral displacement past the upright use position. 6. The wagon of claim 5, wherein the first and second retainers are in the form of retainer walls extending transversely from the first and second walls, respectively. 7. The wagon of claim 6, wherein the first retainer wall at least partially defines a first retainer opening of the first wall that receives the second retainer wall of the second wall in the upright use position, and the second retainer wall at least partially defines a second retainer opening of the second wall that receives the first retainer wall of the first wall in the upright use position. 8. The wagon of claim 1, further comprising a stop member that the second wall abuts against in the upright use position and that prevents the second wall from moving past the upright use position and out of engagement with the first wall. 9. The wagon of claim 8, wherein the stop member is defined by the first wall. 10. The wagon of claim 8, wherein the stop member is defined by a stop wall extending laterally from the first wall and from which a first retainer extends transversely, and wherein the first retainer engages the second wall in the upright use position to prevent the first wall from lateral displacement past the upright use position. 11. The wagon of claim 1, further comprising a latch system adapted to releasably secure the second wall in the upright use position, wherein the latch system includes at least one plunger on one of the first and second walls and at least one receiver on the other one of the first and second walls, wherein in a locked position the plunger is extended into the receiver securing the first and second walls together in the upright use position and in an unlocked position the plunger is retracted from the receiver not preventing the second wall from moving out of the upright use position. 12. The wagon of claim 11, wherein the at least one ramped surface is formed on the first wall, and when the second wall is moved toward the upright use position the ramped surface slidingly engages and pushes on the plunger to retract the plunger into the unlocked position, and when the second wall reaches the upright use position the plunger aligns with and is spring-based into the receiver into the locked position. 13. The wagon of claim 11, wherein in the locked position the plunger received in the receiver prevents the second wall from moving past the upright use position. 14. The wagon of claim 11, wherein the plunger and the receiver are positioned at upper portions of the respective walls. 15. A collapsible consumer-use wagon for cargo, comprising: a base with a plurality of wheels mounted thereto; four peripheral walls that extend generally upright from the base in a use position to help hold the cargo, that are pivotally mounted to the base to pivot relative to the base between the upright use position and a folded position for storage, and cooperating in the upright use position to form a container for holding the cargo; a latch system adapted to releasably secure a second one of the walls to adjacent first and third ones of the walls when the walls are in the upright use position with the second wall extending between the first and third walls, wherein the latch system includes at least one plunger on the second wall and at least one receiver on the first wall, wherein in a locked position the plunger is extended into the receiver securing the first and second walls together in the upright use position and in an unlocked position the plunger is retracted from the receiver not preventing the second wall from moving out of the upright use position; anda minimized-play feature including first and second ramped surfaces on the first and second walls, respectively, an interference between the first and second walls, a resilient deflection feature of the first wall, and first and second retainers on the first and second walls, respectively, wherein when the second wall is pivoted from the folded storage position toward the upright use position, the first and second walls interfere with each other, the first and second ramped surfaces of the first and second walls slidingly engage each other to generate a lateral displacement force, the first wall is resiliently displaced generally laterally by the lateral displacement force as permitted by the resilient deflection feature to provide clearance for the second wall to move into the upright use position, the resilient displacement of the first wall generates a compression force on the second wall in the upright use position so that the first and second walls are held together tightly under pressure to prevent wiggling relative to each other, and the first and second retainers engage each other in the upright use position to prevent the first wall from lateral displacement past the upright use position. 16. The wagon of claim 15, wherein the resilient deflection feature of the first wall includes a portion of the first wall being made of a material with an elastic deformation property sufficient to permit the resilient displacement of the first wall. 17. The wagon of claim 15, wherein the first and second retainers are in the form of retainer walls extending transversely from the first and second walls, respectively, wherein the first retainer wall at least partially defines a first retainer opening of the first wall that receives the second retainer wall of the second wall in the upright use position, and the second retainer wall at least partially defines a second retainer opening of the second wall that receives the first retainer wall of the first wall in the upright use position. 18. The wagon of claim 15, further comprising a stop member that the second wall abuts against in the upright use position and that prevents the second wall from moving past the upright use position and out of engagement with the first wall, wherein the stop member is defined by a stop wall extending laterally from the first wall and from which the first retainer extends transversely. 19. The wagon of claim 15, wherein when the second wall is moved toward the upright use position the first ramped surface slidingly engages and pushes on the plunger to retract the plunger into the unlocked position, and when the second wall reaches the upright use position the plunger aligns with and is spring-based into the receiver into the locked position, wherein in the locked position the plunger received in the receiver prevents the second wall from moving past the upright use position and out of engagement with the first wall. 20. The wagon of claim 15, wherein the plunger and the receiver, and the first and second ramped surfaces, are positioned at upper portions of the respective walls.
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