| 摘要 |
PURPOSE: An automatic manual transmission for an automobile is provided to allow a driver to shift gears in a smooth and stable manner by providing additional drive power to the driven wheels of an automobile when gear transmission takes place. CONSTITUTION: A transmission unit (1) includes multiple transmission devices having different gear ratios especially between an input shaft and an output shaft. A closed drive delivering device (5) is installed between a drive supply device (3) that supplies drive to the input shaft of the transmission unit and the output shaft in order to deliver the drive from the drive supply device to the output shaft at a closed gear ratio. The closed drive delivering device includes a drive disk (7), a driven disk (9), and more than one variable ball (11). The drive disk is connected to a spin shaft of the drive supply device. While being parallel to and sharing the same center with the drive disk, the driven disk spins and is connected to the output shaft. The variable ball, more than one in number, is installed in a way in which the drive is delivered between the drive disk and the driven disk at a closed gear ratio by contacting both cylindrical surfaces of the two disks at the same time and thereby correcting inclination of the two disks' spin shafts. [Reference numerals] (3) Engine
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