Patent ID: 7146696

Claim:
A stapling device for binding an article having a hole structure with a stapling medium having a loop structure corresponding to said hole structure, said stapling device comprising: a supporting portion for holding said stapling medium; a movable portion, having a first L-shaped slot and a second L-shaped slot, disposed adjacent to said supporting portion and moved in a first direction to sustain against said loop structure and in a second direction to prop open said loop structure after said stapling medium is held by said supporting portion, thereby allowing said open loop structure to hook in said hole structure of said article; and a transmission portion, having a first gear assembly, a second gear assembly and a linking element, coupled to said first and second L-shaped slots, and transmitting said first and second L-shaped slots to move in said first direction and said second direction in response to a force exerted thereon; wherein said first L-shaped slot having therein a first rack and a second rack for cooperating with said first gear assembly to move said movable portion in said first direction and in said second direction, respectively; said second L-shaped slot, connected to said first L-shaped slot by way of said linking element, having therein a third rack and a fourth rack for cooperating with said second gear assembly to move said movable portion in said first direction and in said second direction, respectively; said first gear assembly having a first tooth element engaging with said first rack to move said movable portion in said first direction and engaging with said second rack to move said movable portion in said second direction; said second gear assembly having a second tooth element engaging with said third rack to move said movable portion in said first direction and engaging with said fourth rack to move said movable portion in said second direction; and said linking element connected between said first and said second gear assemblies for allowing said second gear assembly to move with said first gear assembly so as to engage with said third rack to move said movable portion in said first direction and engage with said fourth rack to move said movable portion in said second direction.