Adjustment mechanisms, ladders incorporating same and related methods
US10487576B2 · kind B2 · utility
26Cited by
61References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 2, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Oct 28, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Ladders, ladder components and related methods are provided. In some embodiments, adjustable stepladders are provided which include locking mechanisms that enable height adjustment of the ladder through application of a force towards the rails of the ladder. The locking mechanism may include a base or bracket, a handle or lever pivotally coupled with the bracket, an engagement pin coupled with the lever, a biasing member to bias the handle towards a first position relative to the bracket, and a detent mechanism for retaining the lever in at least a second position relative to the bracket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.