A staple gun and a method of using the same. A stapling mechanism in the housing is activated to deliver a staple through an aperture in a housing wall and drive the staple into a surface around a stack of one or more electric cables. The gun includes a reciprocating cable guide for centering the gun on the stack of cables and closing a safety switch to permit the gun's trigger to be activated. A spacer extending outwardly from the housing wall rests on the upper surface of the cable stack. The spacer and a bumper that engages a hammer of the stapling mechanism provide for automatic depth adjustment when driving the staple into the surface. A reciprocating cable guard extending outwardly from the housing wall is positioned between the stack of cables and the staple to aid in preventing the staple from piercing the cable.

A self-adjusting cable guide can be coupled to a nosepiece assembly having a contact end and can be movable between an extended guide position and a retracted guide position relative to the contact end of the nosepiece assembly. A contact trip arm can be adjacent the cable guide and can have a distal end positioned to contact a cable received within a guide recess of the cable guide. The contact trip arm can be movable between an extended arm position corresponding to an inactive state of the tool and a retracted arm position corresponding to an active state of the tool. In addition, the cable guide can have a non-aligned orientation, in which cooperating misalignment stop surfaces can engage each other to stop movement of the self-adjusting cable guide toward the retracted guide position and an aligned orientation in which movement into the retracted guide position is permitted.

A self-adjusting cable guide can be coupled to a nosepiece assembly having a contact end and can be movable between an extended guide position and a retracted guide position relative to the contact end of the nosepiece assembly. A contact trip arm can be adjacent the cable guide and can have a distal end positioned to contact a cable received within a guide recess of the cable guide. The contact trip arm can be movable between an extended arm position corresponding to an inactive state of the tool and a retracted arm position corresponding to an active state of the tool. In addition, the cable guide can have a non-aligned orientation, in which cooperating misalignment stop surfaces can engage each other to stop movement of the self-adjusting cable guide toward the retracted guide position and an aligned orientation in which movement into the retracted guide position is permitted.

A labor-saving stapler is provided, including: a housing, having a nail outlet; a striker, disposed within the housing and movable between a preset position away from the nail outlet and a nailing position near the nail outlet; an energy-accumulating mechanism, including a connection portion connected to the housing and a connection end cooperating with the striker; an operable mechanism, movably connected to the housing and having a depression portion abutable against the energy-accumulating mechanism; a limitation mechanism, connected to the housing, the striker being positionably restricted by the limitation mechanism; wherein when the striker is in a preset position and positionably restricted by the limitation mechanism, the energy-accumulating mechanism is depressible by the depression portion to be in a energy-accumulating state, and when the striker is free of restriction by the limitation mechanism, the energy-accumulating mechanism actuates the striker to move toward the nailing position.

A labor-saving stapler is provided, including: a housing, having a nail outlet; a striker, disposed within the housing and movable between a preset position away from the nail outlet and a nailing position near the nail outlet; an energy-accumulating mechanism, including a connection portion connected to the housing and a connection end cooperating with the striker; an operable mechanism, movably connected to the housing and having a depression portion abutable against the energy-accumulating mechanism; a limitation mechanism, connected to the housing, the striker being positionably restricted by the limitation mechanism; wherein when the striker is in a preset position and positionably restricted by the limitation mechanism, the energy-accumulating mechanism is depressible by the depression portion to be in a energy-accumulating state, and when the striker is free of restriction by the limitation mechanism, the energy-accumulating mechanism actuates the striker to move toward the nailing position.

A staple gun is provided, including: a main body, including a bottom side, and an abutting portion, a staple outlet and a notch which are disposed on the bottom side; a staple magazine, being withdrawably received within the main body; a lock mechanism, including a pressed member disposed on the staple magazine and having a restricting portion movable between a restricting position and a releasing position; wherein when the restricting portion is in the restricting position, the pressed member is located within the notch, the restricting portion is blocked with the abutting portion and the staple magazine is non-withdrawable from the main body; when the pressed member is pressed and moved toward an interior of the main body and the restricting portion is in the releasing position, the restricting portion is unlocked from the abutting portion and the staple magazine is withdrawable from the main body.

A staple gun includes a housing, a striking member, a force-accumulating assembly, a driving mechanism and an adjusting mechanism. The housing includes a staple outlet. The strike member is disposed on the housing. The force-accumulating assembly is movably disposed on the housing and engaged with the striking member. The force-accumulating assembly includes two accumulating members. The driving mechanism includes a pressing lever which is rotatably disposed on the housing and an engaging portion. The adjusting mechanism is disposed on the housing and assembled with the force-accumulating assembly.

A staple gun includes a housing, a striking member, a force-accumulating assembly, a driving mechanism and an adjusting mechanism. The housing includes a staple outlet. The strike member is disposed on the housing. The force-accumulating assembly is movably disposed on the housing and engaged with the striking member. The force-accumulating assembly includes two accumulating members. The driving mechanism includes a pressing lever which is rotatably disposed on the housing and an engaging portion. The adjusting mechanism is disposed on the housing and assembled with the force-accumulating assembly.

A powered fastener driver includes a magazine configured to receive fasteners, a pusher slidably coupled to the magazine, a nosepiece coupled to the magazine, and a workpiece contact element movable with respect to the nosepiece. The powered fastener driver further includes a lockout member pivotally coupled to the nosepiece, and a magnet exerting a magnetic force on the lockout member to bias the lockout member toward a first position. The pusher moves the lockout member to a second position where the lockout member blocks movement of the workpiece contact element when a predetermined number of fasteners remain in the magazine.

A stapler is provided, including: a main body, a striking mechanism, a staple straightening mechanism and a linkage mechanism. The main body includes an inner space and a staple outlet. The striking mechanism is disposed in the inner space and includes a striking member configured to strike a staple and a driving member by which the striking member is driven to move relative to the staple outlet. The staple straightening mechanism is disposed on the main body and includes an aperture corresponding to the staple outlet, at least one abutting member being movable within the aperture and a force accumulating assembly which is movable toward the aperture. The linkage mechanism is disposed in the inner space. The driving member and the force accumulating assembly are connected with the linkage mechanism and comovable with each other.