Patent ID: 8417155
Filing Date: 2013-04-09
Classification: G03G,Y10T

Abstract:
1. A swing-gear mechanism, comprising: a frame having a first arch-shaped guide opening and a second arch-shaped guide opening, each of the first and second arch-shaped guide openings has the same size and shape and has a first end and a second end, respectively; a first swing gear supported by the frame with a shaft of the first swing gear being guided in the first arch-shaped guide opening; a second swing gear supported by the frame with a shaft of the second swing gear being guided in the second arch-shaped guide opening; and a drive gear meshed with the first and the second swing gears and configured to rotate in a first or a second direction, wherein the first swing gear and the second swing gear are displaced to one end of the corresponding arch-shaped guide openings upon rotation of the drive gear in the first direction, or to the other end of the corresponding arch-shaped guide openings upon rotation of the drive gear in the second direction.