Patent attributes
An apparatus, system, and method of attaching a tree stand or other structure along a tree trunk. The apparatus includes a plurality of independently operable features that can be used together or by-themselves with a backbone-type base. The base can support a seat, foot rest, combination of the same, or other structures. One of the independently operable features is a cross member or beam that rotates at the backbone. This can adjust to a tree trunk that diverges to one side or the other from vertical and from the backbone. Another feature is a second cross member that nest in or pivot at one end out of the primary cross beam. This can adjust to a tree trunk that diverges away from the backbone. Another feature is a combination V- or C-shaped cleats or claws and spaced apart around separate vertical pivot axes, with concave sides towards the trunk, at the cross-beam or beams. One cleat is wider and fixed. This assists in gripping a tree trunk that is crooked either side-to-side relative the backbone or diverges away from the backbone and vertical. These features can assist in plumbing a backbone relative to vertical regardless of tree trunk shape at the area of mounting.