Abstract: A hand climber for use with a foot actuated tree climbing platform embodying an elongated bar slidably connected to the forward ends of a first pair of links which extend along opposite sides of the tree. A second pair of links extend forwardly along opposite sides of the tree with the forward ends thereof being pivotally connected to the rearwardly extending ends of the first pair of links. The rear ends of the second pair of links are pivotally connected to each other whereby all of the links are movable to adjust themselves to the contour of the tree and are movable to extended and collapsed positions.

Abstract: A tree climbing platform embodying a base plate having side members projecting beyond an end thereof and disposed to extend alongside opposite sides of a tree with said one end of the base plate spaced from the adjacent side of the tree and the other end thereof extending away from the tree. A first blade carried by the side members bites into the opposite side of the tree from the side thereof nearest the base plate. A frame member is connected at one end to said other end of the base plate and extends inwardly beneath the base plate. A second blade at the inner end of the frame member bites into the side of a tree opposite the side thereof engaged by the first blade. Means is carried by the base plate for detachably attaching the base plate to the feet of a person standing thereon.