US Patent 11045002 Quick-release footrest device

A footrest device for supporting feet apart from a cylinder includes a central hub, an outer ring spaced apart from the central hub, and spars, each extending radially from a proximal end, on the first jaw of the hub, to a distal end on the ring. The hub is a clamp with an open condition and a closed condition for clamping onto the cylinder, and it includes first and second jaws pivoted to each other to open and close the hub about a space configured to receive the cylinder. A latch assembly opens and closes the first and second jaws with respect to each other.