US Patent 10423244 Cursor controlling device

A cursor controlling device includes a bottom board, a pivoting structure disposed on the bottom board, a shell, and an angle-adjusting structure disposed under the shell. The shell is rotatably connected to the pivoting structure along a longitudinal axis of the pivoting structure. A side edge of the shell is formed with a stepped structure. The stepped structure has a plurality of abutting surfaces having respective distances with respect to the bottom board. The angle-adjusting structure has a supporting portion movable on the bottom board to support one of the abutting surfaces of the stepped structure. Therefore, the supporting portion is configured to selectively support one of the abutting surfaces to lift up the side edge of the shell away from the bottom board in an inclined state, or to lower the side edge of the shell to approach the bottom board in another inclined state.