Patent ID: 8876111

Claim:
An inverting roller device for conveying a paper and changing a conveying path of said paper, said inverting roller device comprising: a first rotating shaft comprising a protrusion part, wherein when said first rotating shaft is in a positively-driven state, said first rotating shaft is rotated in a first rotating direction, wherein when said first rotating shaft is in a reversely-driven state, said first rotating shaft is rotated in a second rotating direction; a first roller pivotally disposed on said first rotating shaft, and comprising a notch, wherein said notch comprises a first sidewall and a second sidewall, wherein said protrusion part is accommodated within said notch; a second rotating shaft located at a side of said first rotating shaft and arranged in parallel with said first rotating shaft; a second roller disposed on said second rotating shaft, wherein said first roller and said second roller are contacted with each other, so that said paper is clamped and conveyed by said first roller and said second roller; a first swinging arm pivotally disposed on a first end of said first rotating shaft and connected with a first end of said second rotating shaft, wherein as said first rotating shaft is rotated, said first swinging arm is correspondingly rotated; and a second swinging arm disposed on a second end of said first rotating shaft and connected with a second end of said second rotating shaft, wherein when said first rotating shaft is in said positively-driven state, said protrusion part is contacted with said first sidewall of said notch, so that said first roller is synchronously rotated with said first rotating shaft, wherein when said first rotating shaft is switched from said positively-driven state to said reversely-driven state, said protrusion part is separated from said first sidewall of said notch and moved toward said second sidewall of said notch, so that said first roller is not rotated temporarily and said first swinging arm is driven by said first rotating shaft to be rotated, wherein as said first swinging arm is rotated, said second rotating shaft and said second roller are moved relative to a surface of said first roller, so that a relative position between said first roller and said second roller is changed and said conveying path of said paper is correspondingly changed.