| 摘要 |
An angle adjusting device of a steel bar bending apparatus includes at least an adjusting unit, having a casing inside which a worm and worm gear pair is disposed. The worm is rotatably fit over a shaft which is in turn rotatably supported within the casing. The shaft is driven by a driving motor of the steel bar bending apparatus. The worm is fixed on a spindle having an end extending outside the casing to which a rotation knob is releasably fixed for rotating the worm about a central axis of the shaft. A switch is attached to the worm so that the angular position thereof about the central axis is adjustable by rotating the knob. A triggering member is fixed on the shaft so that when the shaft is driven by the motor to reach and thus trigger the switch, the motor is turned off by the operation of the switch. The casing is provided with a top projection and a corresponding bottom recess for receiving and fixing the top projection of a second unit for stacking the units over each other. The shaft is provided with an upper end projection and a lower end recess for drivingly coupling the shafts of the units together.
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