Abstract: A method of adjusting an energy output for an electric nail gun including a controller, a motor, a flywheel that co-rotates with the motor, an impact member configured to receive energy of the flywheel to hit a nail, an operation component, an adjust component and a plurality of indicators is provided. The controller has a plurality of energy modes related to controlling the motor to drive the flywheel to rotate with different rotational speeds, respectively. When the adjust component is activated, the controller switches a currently-active energy mode to a next one of the energy modes, and lights up the indicators in a manner corresponding to the next one of the energy modes. When the operation component is activated, the controller controls the motor to rotate in the currently-active energy mode to drive the flywheel thus driving the impact member for firing the nail.

Abstract: A striking device includes a swing arm unit, an impact member and two restoring units. Each of the restoring units includes a stationary seat removably connected to the swing arm unit, a moving seat removably and co-movably connected to the impact member, first and second coupling sets, and a resilient member interconnecting the stationary seat and the moving seat to bias the moving seat toward the stationary seat. For each of the restoring units, two portions of the first coupling set are formed respectively on the stationary seat and the swing arm unit and coupled removably with each other, and two portions of the second coupling set are formed respectively on the moving seat and the impact member and coupled removably with each other.

Abstract: A striking device includes a swing arm unit, an impact member and two restoring units. Each of the restoring units includes a stationary seat removably connected to the swing arm unit, a moving seat removably and co-movably connected to the impact member, first and second coupling sets, and a resilient member interconnecting the stationary seat and the moving seat to bias the moving seat toward the stationary seat. For each of the restoring units, two portions of the first coupling set are formed respectively on the stationary seat and the swing arm unit and coupled removably with each other, and two portions of the second coupling set are formed respectively on the moving seat and the impact member and coupled removably with each other.

Abstract: A nailing machine 10 includes a machine housing (1) having a gun nozzle (11), a first end (12) formed adjacent to the gun nozzle (11) and a second end (13) away from the gun nozzle (11); a nail track (2) having a third end (21); and a guiding shaft (3) having a fourth end (31) and a fifth end (32); wherein the third end (21) of the nail track (2) and the fourth end (31) of the guiding shaft (3) are connected to the first end (12) of the machine housing (1) with a fixed mechanism (4); the fifth end (32) of the guiding shaft (3) and the second end (13) of the machine housing (1) are connected to the machine housing (1) with a slidable mechanism (5). Therefore, the interferences caused by the jamming of the screwdriver trapped by the nail belt can be prevented.

Abstract: A screw feeding device includes a feeder box, a stopper member, an operating member, and a resilient member. An adjustment slot is formed in the stopper member, and has two closed ends and alternate large-diameter and small-diameter slot portions. An operating protrusion of the operating member has a large-diameter protrusion portion and a small-diameter protrusion portion. The operating protrusion is biased by the resilient member away from the feeder box. The operating member is movable relative to the feeder box between a first position whereat the large-diameter protrusion portion is disposed within a selected one of the large-diameter slot portions, and a second position whereat the small-diameter protrusion portion is disposed in the adjustment slot.

Abstract: A screw feeding device includes a feeder box, a stopper member, an operating member, and a resilient member. An adjustment slot is formed in the stopper member, and has two closed ends and alternate large-diameter and small-diameter slot portions. An operating protrusion of the operating member has a large-diameter protrusion portion and a small-diameter protrusion portion. The operating protrusion is biased by the resilient member away from the feeder box. The operating member is movable relative to the feeder box between a first position whereat the large-diameter protrusion portion is disposed within a selected one of the large-diameter slot portions, and a second position whereat the small-diameter protrusion portion is disposed in the adjustment slot.