Trigger-switching device of a driven tool for preventing an unintentional triggering process

摘要

A power tool trigger switch for preventing unintentional actuation of the same, comprising: a trigger slidably disposed in a first position of a handle of the power tool, a first spring being provided between the trigger and the handle, and the trigger being provided with a first braking unit; and a safety switch slidably disposed in a second position of the handle, a second spring being provided between the safety switch and the handle, and the safety switch being provided with a second brake unit; wherein the second brake unit locks the first brake unit when neither the trigger nor the safety switch is subjected to a force so that the trigger cannot be pressed; wherein the second brake unit unlocks the first brake unit when the safety switch is pressed by a force after the second spring is compressed; wherein in the state in which the trigger is pressed to compress the first spring when the force for pressing the safety switch is released, the second spring releases an elastic force on the safety switch at this point and thereby causes the second brake unit to release the first Brake unit locked so that the trigger remains in a depressed state; and wherein the second brake unit, when the safety switch is pressed while the trigger is in the depressed state, unlocks the first brake unit, and the first spring releases an elastic force on the trigger and thereby causes the trigger to return to its original position; and the second brake unit at that point in time re-locks the first brake unit so that the trigger cannot be pressed.