| 摘要 |
A unidirectional clutch device has a driving board (10), multiple permanent magnets (20), and multiple clutching elements (30). The driving board (10) has an axle hole (11) and multiple holding recesses (12). The holding recesses (12) are arranged around and communicate with the axle hole (11). Each holding recess (12) has a long end (122) and a narrow end (121). The permanent magnets (20) are mounted on the driving board (10) and are located at positions adjacent to the narrow ends (121). The clutching elements (30) are rotatably mounted respectively in the holding recesses (12) and are made of a magnetically conductive material. Each clutching element (30) is moveable in a corresponding one of the holding recesses (12) toward the narrow end (121) of the corresponding holding recess (12) by an attraction of a corresponding permanent magnet (20). |
