Patent ID: 8203532

Claim:
A portable mouse attachable on a surface of an object, said portable mouse comprising: a base comprising a base recess; a casing for sheltering said base; an attractable element disposed within said base recess and exposed to a surface of said base; and a control module disposed on said base for moving said attractable element, wherein said attractable element is accommodated within said base recess when said control module is in a non-actuating status, and said attractable element is protruded out of said base recess to be attached on said surface of said object when said control module is in an actuating status, wherein said control module comprises: a keycap exposed outside a surface of said casing; a triggering element connected with said keycap and said attractable element, wherein said attractable element is moved in response to a position shift of said triggering element; a positioning element disposed on said base and contacted with said triggering element; and a retractable mechanism connected with said attractable element and contacted with said triggering element, wherein said retractable mechanism comprises: a sliding slot; a retractable slice comprising a protrusion and a retractable shaft, wherein said retractable shaft is arranged at a first end of said retractable slice and inserted into said sliding slot such that said retractable shaft is movable along said sliding slot, and said protrusion is arranged at a second end of said retractable slice, inserted into said perforation of said triggering element and contacted with said triggering element; and a spring connected with said retractable slice and said attractable element for providing an elastic force; wherein if said keycap is not depressed and said control module in said non-actuating status, a surface of said keycap is coplanar with said surface of the casing, said retractable shaft of said retractable slice is located in a first position of said sliding slot, said spring is in a stretched status, said fixing rod of said triggering element is contacted with said positioning element, and said attractable element is accommodated within the base recess, wherein if said keycap is depressed and said control module in said actuating status, said triggering element is moved with said keycap to be sustained against the retractable slice such that said retractable shaft of said retractable slice is moved from said first position to a second position, said retractable slice is sustained against said spring such that said spring is in a compressed status, said fixing rod is moved to be inserted into said positioning element such that said triggering element is fixed by said positioning element, and said attractable element is moved to be protruded out of said base recess such that said portable mouse is attached on said object via said attractable element.