US Patent 12092152 Mounting system such as for vehicle lights

Lights or other accessories can be mounted through a mount hole of an adapter plate which is pivotably supported upon a base. The base is attachable to an underlying structure, such as a motor vehicle, through bores passing through lateral wings thereof, or through bores in an angled flange thereof. The base includes a cylindrical body with an upper face. A central recess extends down into a center of the cylindrical body, located at a center of the upper face. The adapter plate includes a cylindrical extension which fits within the cylindrical recess. A series of holes surround the central recess in the upper face of the base. A set pin of the adapter plate is biased toward extending down from the adapter plate to reside within one of the holes in the upper face, to hold the adapter plate in one of multiple rotationally spaced positions.