| 主权项 |
1. A staples push unit of a tacker, comprising:
a magazine connected to a front end of the tacker so as to receive staples therein, a slot defined in the tacker, a guide plate located in the tacker and located at a staple outlet of the tacker; a motor located in the tacker and having an output shaft, a driving gear connected to the output shaft and having teeth defined in an outer periphery thereof; a trigger electrically connected to the motor; a push unit located in the slot and having a slide and a push plate which is connected to a first end of the slide, the slide having a notch defined in a second end thereof, the slide having a rack formed at a side thereof, the rack engaged with the teeth of the driving gear, the push plate located within the guide plate and guided by the guide plate; a spring board located in the tacker and having an end engaged with the notch of the slide, and the driving gear driving the rack to move the slide away from the staple outlet of the tacker, the spring board being bent with movement of the slide, when the teeth of the driving gear are disengaged from the rack, the spring board bounces back and drives the slide and the push plate toward the staple outlet of the tacker to eject a staple out from the staple outlet. |
