Stepladders and related methods
View Patent ↗Stepladders and related methods of using and manufacturing stepladders are provided. In one embodiment, a stepladder is provided that comprises a top cap, a first assembly and a second assembly. The first assembly has a pair of spaced apart rails pivotally coupled with the top cap. The second assembly includes at least one rail pivotally coupled with the top cap. The first assembly and second assembly are configured to be displaced relative one another such that the stepladder is selectively positionable between a first, deployed state and a second, collapsed state. The first assembly, the second assembly and the top cap are cooperatively configured such that the at least one rail of the second assembly is at least partially nested within an envelope defined by the pair of spaced apart rails of the first assembly with the step ladder is in a collapsed state.
1. A stepladder comprising:
a first assembly including a pair of spaced apart rails defining a first volume, the first assembly including a plurality of rungs coupled between the pair of spaced apart rails;
a second assembly including a pair of spaced apart rails defining a second volume;
a top cap positioned at an uppermost portion of the stepladder when the stepladder is in an orientation of intended use, the top cap having an upper surface and a skirt extending from the upper surface, the skirt including a front side, a back side and a pair of lateral side members;
a first pair of pins, each pin of the first pair coupling an associated one of the pair of rails of the first assembly with the top cap at a first location in an associated one of the lateral side members such that uppermost ends of the pair of rails of the first assembly are positioned adjacent the front side of the top cap;
a second pair of pins, each pin of the second pair pivotally coupling an associated one of the pair of rails of the second assembly with the top cap at a second location in an associated one of the lateral side members such that uppermost ends of the pair of rails of the second assembly are positioned adjacent the back side of the top cap and spaced from the front side of the top cap;
wherein the second assembly is pivotally positionable relative to the first assembly between a first, deployed state and a second, collapsed state, wherein, when in the second, collapsed state, a total volume of the stepladder is less than a sum of the first volume and the second volume; and
wherein each of the plurality of rungs maintain their position and orientation relative to the pair of rails of the first assembly when the stepladder is in both the deployed state and collapsed state; each pin of the first pair pivotally couples the associated one of the pair of rails of the first assembly with the top cap; and
a pair of hinged spreaders, each hinged spreader being pivotally coupled with the first assembly and being pivotally coupled with the second assembly; and
a pair of struts, each strut extending from an associated one of the pair of hinged spreaders towards the top cap and having one end pivotally coupled with the associated one of the pair of hinged spreaders and a second end pivotally coupled with at least one of the second assembly and the top cap, wherein each of the second pair of pins pivotally couples the second end of an associated strut of the pair of struts with the top cap.
2. The stepladder of claim 1 , wherein the first assembly is at least partially nested within the second volume defined by the second assembly when the ladder is in the collapsed state.
3. The stepladder of claim 1 , wherein the pair of struts extend substantially parallel to the rails of the first assembly when the ladder is in the first, deployed state.