Patent ID: 7667689

Claim:
A mouse device comprising: a mouse main body; a roller disposed within said mouse main body and partially protruded from said mouse main body; a rolling shaft sheathed by said roller and having plural saw-toothed structures on the periphery thereof; and a switching mechanism disposed within said mouse main body, and including: a metallic piece stand; a first resilient element beside said metallic piece stand; a metallic piece coupled to said metallic piece stand, and having a first terminal adjacent to the saw-toothed structures and a second terminal in contact with said first resilient element; an indentation receiving therein a second resilient element; a push rod including a protrusion piece in the vicinity of said metallic piece, a tip protruded from said mouse main body, a bottom portion in contact with said second resilient element and a gliding slot formed at said bottom portion; and a fixing hook having a first end embedded into said gliding slot of said push rod and a second end engaged with said indentation.