Abstract: Lock assemblies for ladders and other rail assemblies are provided. In some embodiments, a ladder section includes a first rail and a second rail with openings extending therethrough. A lock assembly is disposed between the first rail and the second rail to selectively engage the opening in the first and second rails. The lock assembly includes a first rod and a second rod. The lock assembly also includes a first pusher that engages the first rod and a second pusher that engages the second rod. A first lever extends from an outer surface of the first pusher. A second lever extends from an outer surface of the second pusher to create a pinch grasp portion with the first lever. The lock assembly has a locked position that secures the ladder section and an unlocked position that allows the ladder section to be reconfigured with respect to another structure.

Abstract: A ladder is disclosed which has a lockable pivot arrangement. The lockable pivot arrangement is located and connected between two elongate ladder sections. Inside each pair of end housings there are at least two receptacles. A pivot mechanism connects between the end housings and the end housings rotate in unison and also allow the pair of end housings to rotate relative to the housing. A lock mechanism within the housing has at least two lock members each with an actuator and each actuator having a free end. There is an elastomeric bias element acting to bias the two lock members and respective free ends and actuators away from each other, and the two actuators when biased apart are positioned so as to allow for one-handed actuation against the bias to unlock the rotation of the housing.