| 摘要 |
The present invention relates to a stretching device, which comprises: a first plate for holding an arm; a second plate for holding a palm and a thumb; a third plate for holding four fingers except for the thumb; a fourth plate vertically fixated on both sides of the first plate; a power transmitting device fixated on one of the both sides of the fourth plate for transmitting rotational force applied on an input shaft to an output shaft, and for not transmitting rotational force applied on the output shaft to the input shaft; and a gear assembly fixated on the output shaft of the power transmitting device for controlling a slope of the second plate and the third plate. |
