| 摘要 |
<p>A hoist machine is provided with a driving member (2) driven by a capacitor start single phase motor (3), which is provided with a governor (4) and a switching device (5) for turning on-off a start capacitor following operation of the governor, the switching device (5) is provided with a switch control panel (37), which, when the driving member (2) drives to hoist a load, maintains on-operation of the lowering side switch (36) and turns off the hoisting side switch (33) following the operation of the governor (4) to thereby cut off energization to the start capacitor (C1), and when the lowering operation, maintains on-operation of the hoisting side switch (33) and turns off the lowering side switch (36) to thereby cut off energization of the start capacitor (C1). Thus the reversal of direction of operation of a hoist machine may be achieved with the minimum of delay.</p> |
