| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric spring operation mechanism for a switching unit in which an abnormality of a working state is monitored to obtain high accuracy and high reliability, to provide an abnormality monitoring method and a device of a switching unit which has a small size and a simple structure, and to provide a switching unit provided with the abnormality monitoring device. SOLUTION: On an input cam 40 and an output lever 42, there are provided displacement gages 1, 2 and on the input cam 40, the output lever 42 and a transmission gear 36, there are provided torque sensors 3, 4 and 5. Furthermore, on the output lever 42, there are provided warp sensors 6, 7. Each of the dislocation gages 1, 2, the torque sensors 3, 4 and 5 and warp sensors 6, 7 has a predetermined determination standard value of a physical volume through a cable 8 and site relay board 9, and moreover, is connected with such a portable computer 10 as a laptop personal computer in order to make the abnormality determination of the electric spring operation mechanism. COPYRIGHT: (C)2008,JPO&INPIT
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