Patent ID: 8794087
Filing Date: 2014-08-05
Classification: F16H,Y10T

Abstract:
1. A gear motor having a safety mechanism, including: a motor body; a speed reduction mechanism comprising a worm extending from the motor body and a worm wheel positioned to correspond to the worm and drivingly engaged therewith; a transmission mechanism comprising a base fixed to the speed reduction mechanism, a lead screw rod pivotally connected to the base and rotatably driven by the worm wheel, and a nut threadedly connected to the lead screw rod to generate a linear movement; and a touch switch electrically connected to the motor body, the touch switch being provided on one side of the lead screw rod to correspond to a travelling path of the nut, thereby stopping the running of the motor body when the nut contacts the touch switch; wherein the base is provided with a guiding groove in parallel to the lead screw rod, and the nut has a rotation-stopping portion slidably inserted into the guiding groove, and the rotation-stopping portion is exposed to the outside of the base through the guiding groove.