Ladders and related methods

Patent metadata

Field	Value
Publication number	US-9422767-B2
Application number	US-201414179666-A
Country	US
Kind code	B2
Filing date	Feb 13, 2014
Priority date	Feb 13, 2013
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

Ladders and related methods of using and manufacturing stepladders are provided. In one embodiment, a stepladder is provided that comprises a first assembly hingedly coupled with a second assembly. The first assembly has a pair of spaced apart rails pivotally coupled with one or more rungs. The second assembly includes a pair of space apart rails with one or more bracing members extending therebetween. 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. Upon rotation of the two assemblies relative to one another into a stowed condition, components of the second assembly engage undersurfaces of the rungs effecting rotation of at least a portion of each rung relative to the rails of the first assembly.

First claim

What is claimed is:

1. A ladder comprising:
a first assembly having a pair of spaced apart rails and at least one rung extending therebetween, each of the pair of spaced apart rails having a front surface and a back surface, the front surfaces and the back surfaces of the pair of spaced apart rails defining a volumetric envelope;
a second assembly having a pair of spaced apart rails, the second assembly being hingedly coupled with the first assembly;
wherein the at least one rung comprises:
a first component extending between and fixedly coupled to the pair of rails of the first assembly, the first component including at least a first surface and a second surface;
a second component extending between and rotatably displaceable relative to the pair of rails of the first assembly, the second component having at least a first surface and a second surface, wherein when in a first position, the first surface of the first component and the first surface of the second component are substantially coplanar and the second surface of the second component abuts the second surface of the first component such that rotation in a first direction is prohibited, wherein when in the first position, a first portion of the second component's first surface is located within the volumetric envelope and a second portion of the second component's first surface extends beyond the back surfaces and outside of the volumetric envelope and, wherein, when in a second position, the second component is substantially positioned within the volumetric envelope;
at least one bracing member extending between and coupled to the pair of rails of the second assembly, and wherein when the second assembly is rotated adjacent the first assembly, the at least one bracing member contacts an undersurface of the second component of the at least one rung and is configured to push against the undersurface of the second component and rotate the second component in a second direction opposite the first direction.

2. The ladder of claim 1 , further comprising a platform rotatably coupled with the first assembly and configured to selectively engage the second assembly.

3. The ladder of claim 2 , further comprising a locking mechanism configured to selectively lock the platform with a component of the second assembly.

4. The ladder of claim 1 , wherein the rails of the first assembly extend beyond a hinge point between the first and second assemblies.

5. The ladder of claim 4 , further comprising a handle extending between and coupling upper ends of the pair of rails of the first assembly.

6. The ladder of claim 5 , wherein the handle is configured for selective coupling with at least one accessory.

7. The ladder of claim 1 , wherein the at least one rung includes a plurality of rungs.

8. The ladder of claim 1 , wherein the pair of spaced apart rails of the second assembly at least partially overlap with the pair of spaced apart rails of the first assembly when the ladder is in a collapsed state.

9. The ladder of claim 1 , wherein the second component is directly pivotally coupled with the pair of spaced apart rails of the first assembly.

10. The ladder of claim 2 , wherein the at least one rung includes a plurality of rungs, each rung of the plurality of rungs including a first component extending between and fixedly coupled to the pair of rails of the first assembly and a second component extending between and rotatably displaceable relative to the pair of rails of the first assembly.

Assignees

• Wing Entpr Inc
• Wing Entpr Inc

Inventors

• Russell Brian
• Peterson Sean
• Jones Kristopher
• Wright Bryan

Classifications

• E06C1/393

  Ladders having platforms foldable with the ladder · CPC title

• E06C7/082

  Connections between rungs or treads and longitudinal members · CPC title

• E06C1/14

  Ladders capable of standing by themselves · CPC title

• Y10T29/49716

  Converting · CPC title

• E06C1/18 Primary

  with supporting struts formed as ladders {(E06C1/32 takes precedence)} · CPC title