Patent attributes
A synchronous hinge device includes a first base having a first connecting portion and a first assembling portion. The first connecting portion has a first central groove, a first outer groove, a first through hole and a second through hole. A second base has a second connecting portion and a second assembling portion. The second connecting portion has a second central groove, a second outer groove, a third through hole and a fourth through hole. First, second, third, and forth shafts extending through the first, the second, the third, and the fourth through holes, respectively. A first torque element disposed between the first shaft and the third shaft; and a second torque element disposed between second shaft and the fourth shaft, wherein the first torque element has axle sleeves limiting the first distance, and the second torque element has axle sleeves limiting the second distance.
