| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic transmission device capable of performing a speed change switching operation according to load variation only by a mechanical mechanism.SOLUTION: The automatic transmission device includes a first clutch F1, a second clutch F2, and a speed-changing torque detection section E. The first clutch F1 performs switching between an ON state for transferring rotation of a drive motor B to the cage C3 of a planetary gear mechanism C and an OFF state for cutting off the transfer of the rotation. The second clutch F2 performs switching between an OFF state for freely rotating a ring gear C4 by bringing a non-rotary speed-changing member D2 and a ring gear C4 into a non-connected state and an ON state for connecting and integrating the speed-changing member and the ring gear in predetermined timing by making the speed-changing member and the ring gear wait in a neutral state where they can be connected. The speed-changing torque detection section E performs switching operations on the first and second clutches by moving clutch operating sections (E2, E5) from a first position of low torque detection to a second position of high torque detection when a gear shifting torque value for a speed change is detected based on the load of a drive target G. In the first position state of the clutch operating section, the first clutch is turned ON and the second clutch is turned OFF. In a second position state of the clutch operating section, the first clutch is turned OFF and the second clutch is turned ON. |
