Push-pull wagon

Abstract

A wagon having a wagon frame, a push bar and a handle is provided. The wagon frame has a first end assembly and an opposing second end assembly. First and second rear wheels are rotatably connected to the wagon frame adjacent the second end assembly, and first and second front wheels are rotatably and pivotally connected to the wagon frame adjacent the first end assembly. The handle is pivotally connected to the first end assembly, and the push bar is pivotally connected to the second end assembly. The push bar is lockably positionable in a plurality of use positions and a storage position with a ratchet mechanism.

What is claimed is: 
     
         1 . A wagon comprising:
 a wagon frame having a first end assembly and an opposing second end assembly;   a floor assembly connected to the wagon frame between the first end assembly and the second end assembly, wherein the wagon frame folds between an open configuration and a folded configuration;   first and second rear wheels rotatably connected to the wagon frame adjacent the second end assembly;   first and second front wheels rotatably and pivotally connected to the wagon frame adjacent the first end assembly;   a handle pivotally connected to the first end assembly; and,   a push bar pivotally connected to the second end assembly, the push bar lockably positionable in a plurality of use positions and a storage position.   
     
     
         2 . The wagon of  claim 1 , wherein the handle is spring loaded and biased toward the first end assembly. 
     
     
         3 . The wagon of  claim 1 , wherein the handle has a pivot member with a cam surface to removably secure the handle in a vertical position. 
     
     
         4 . The wagon of  claim 1 , further comprising a fabric housing on the wagon frame. 
     
     
         5 . The wagon of  claim 1 , wherein the push bar is connected to the second end assembly with a ratchet mechanism. 
     
     
         6 . The wagon of  claim 5 , further comprising a spring-loaded button to disengage a ratchet in the ratchet mechanism to adjust an angular position of the push bar. 
     
     
         7 . The wagon of  claim 1 , further comprising a foot activated brake mechanism adjacent the second end assembly to rotationally lock at least one of the rear wheels. 
     
     
         8 . The wagon of  claim 1 , further comprising a removable canopy connected to telescoping posts that are secured to the wagon frame. 
     
     
         9 . The wagon of  claim 1 , wherein the floor assembly comprises a first floor assembly pivotal with respect to the first end assembly, and a second floor assembly pivotal with respect to the second end assembly, and wherein the first floor assembly is pivotable with respect to the second floor assembly to allow for folding of the wagon frame. 
     
     
         10 . The wagon of  claim 9 , further comprising a linkage assembly under the floor assembly, the linkage assembly having a first linkage pivotally connected to the first end assembly and a second linkage pivotally connected to the second end assembly, wherein the first linkage is also pivotally connected to the second linkage. 
     
     
         11 . A wagon comprising:
 a wagon frame having a first end assembly and an opposing second end assembly;   first and second rear wheels rotatably connected to the wagon frame adjacent the second end assembly;   first and second front wheels rotatably and pivotally connected to the wagon frame adjacent the first end assembly; and,   a push bar pivotally connected to the second end assembly with a ratchet mechanism, wherein the push bar is lockably positionable in a plurality of angularly located use positions via the ratchet mechanism.   
     
     
         12 . The wagon of  claim 11 , wherein the wagon frame folds between an open configuration and a folded configuration, wherein the wagon frame has a floor assembly between the first end assembly and the second end assembly, wherein the floor assembly comprises a first floor assembly pivotal with respect to the first end assembly, and a second floor assembly pivotal with respect to the second end assembly, and wherein the first floor assembly is pivotable with respect to the second floor assembly to allow for folding of the wagon frame, wherein the wagon frame further has a linkage assembly under the floor assembly, the linkage assembly having a first linkage pivotally connected to the first end assembly and a second linkage pivotally connected to the second end assembly, wherein the first linkage is also pivotally connected to the second linkage. 
     
     
         13 . The wagon of  claim 11 , further comprising a fabric housing on the wagon frame. 
     
     
         14 . The wagon of  claim 11 , further comprising a handle pivotally connected to the first end assembly, wherein the handle is spring loaded and biased toward the first end assembly. 
     
     
         15 . The wagon of  claim 14 , wherein the handle has a pivot member with a cam surface to removably secure the handle in a vertical position. 
     
     
         16 . The wagon of  claim 11 , further comprising a spring-loaded button to disengage a ratchet in the ratchet mechanism to adjust the angularly located use position of the push bar. 
     
     
         17 . A wagon comprising:
 a wagon frame having a first end assembly and an opposing second end assembly;   first and second rear wheels rotatably connected to the wagon frame adjacent the second end assembly;   first and second front wheels rotatably and pivotally connected to the wagon frame adjacent the first end assembly;   a push bar connected to the wagon frame; and,   a handle pivotally connected to the first end assembly, wherein the handle is spring loaded and biased toward the first end assembly, and wherein the handle has a pivot member with a cam surface to removably secure the handle in a vertical position.   
     
     
         18 . The wagon of  claim 17 , wherein the cam is a raised protrusion extending from an arcuate outer surface of the pivot member, and wherein the cam has a generally flat surface toward a center thereof that engages a mating wall to operate as a stop. 
     
     
         19 . The wagon of  claim 17 , wherein the push bar is connected to the second end assembly with a ratchet mechanism, and wherein the push bar is lockably positionable in a plurality of angularly located use positions via the ratchet mechanism. 
     
     
         20 . The wagon of  claim 17 , wherein the wagon frame has a floor assembly having a first floor assembly pivotal with respect to the first end assembly and a second floor assembly pivotal with respect to the second end assembly, and wherein the first floor assembly is pivotable with respect to the second floor assembly to allow for folding of the wagon frame.