Importance

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Abstract

A mechanic drive apparatus includes a driving shaft and a hollow rotatable housing which has a rear side mounted on one end of the driving shaft. An output shaft extends into the rotatable housing and is mounted rotatably thereto. The output shaft is aligned axially with the driving shaft. A driven gear is mounted fixedly on the output shaft and is disposed inside the rotatable housing. A pair of driven transmission shafts are disposed on opposite edges of the driven gear. Each of the driven transmission shafts is provided with a worm segment that extends into the rotatable housing and that meshes with the driven gear. A pair of intermediate shafts are mounted rotatably to the rotatable housing in a direction which is transverse to the output shaft. A small bevel gear is mounted fixedly on each of the intermediate shafts. A pair of belt drive units transmit the rotating force of the intermediate shafts to the driven transmission shafts. A large bevel gear is mounted rotatably on the driving shaft and is disposed adjacent to the rear side of the rotatable housing. The large bevel gear meshes with the small bevel gears.

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First Claim