A screw feeding apparatus of a screw gun is disclosed. It comprises a screw gun having a main body and a cartridge holder slidably disposed on the main body, a screw cartridge disposed on the cartridge holder, a screw die head disposed at a front end of the screw cartridge, and a feeding assembly disposed at a rear end of the screw cartridge.

A screw structure is disclosed herein. The screw for assembly in a screw cartridge of a screw gun comprises a rod body, a head part having a guide flange radially disposed on a top thereof, and a thread part.

An apparatus for inserting implants in a bone comprising a frame having a cartridge receiving chamber and a barrel. A cartridge defining a plurality of chambers is positioned in the cartridge receiving chamber so the chambers are selectively alignable with a longitudinal passage of the barrel. At least one instrument is positioned in one of the chambers, and a plurality of implants is positioned in the other chambers. A drive assembly is engageable with the instrument and the implants. The drive assembly is slidably and rotatably disposed in the frame and is moveable between a retracted position, an engaging position wherein the distal end of the drive assembly is positioned to engage the selected one of the instrument and the implants, and an extended position wherein the drive assembly extends through the chamber to transport the selected one of the instrument or the implant from the chamber to the distal end of the barrel.

A power tool, comprising first and second module, removable from the first module, the first and second modules being insertable into one another along an insertion axis defining an insertion direction, the first module having a pressing inhibiting element, moved along with the second module, and a pressing blocking element, the inhibiting element being turnable with respect to the blocking element about the insertion axis between normal and detaching positions, the second module being held against the first module in the normal position and removable from the first module in the detaching position, the blocking element allowing the inhibiting element to be transferred along the insertion axis toward the first module into a pressing position when the inhibiting element is in the normal position, the blocking element blocking the insert fitting from being transferred into the pressing position when the inhibiting element is in the detaching position.

A dispensed screw positioning unit includes a base connected to a delivery mechanism of a screw gun and spaced from the delivery mechanism along a horizontal axis. The base includes two screw dispensing gates configured to clamp a dispensed screw along a vertical axis perpendicular to the horizontal axis. A gap between the two screw dispensing gates in a clamping state is aligned with a screw dispensing hole of the delivery mechanism. The two screw dispensing gates are biased by a first elastic device to the clamping state. A screw dispensed along the horizontal axis overcomes elasticity of the first elastic device to stretch open the two screw dispensing gates. A second elastic device is disposed between the base and the delivery mechanism to form an elastic spacing between the base and the delivery mechanism.

A screw driving machine includes a contact portion movable from a first position to a second position via a third position by abutting against a driven member to press against the driven member, a driving portion moving a driver bit when the contact portion reaches the third position to drive a screw into the driven member, a tightening portion causing the driver bit to rotate about an axis and tighten the screw after the screw is driven, a tightening depth switching portion switching a tightening depth of the screw by the tightening portion after the screw is driven, a driving depth regulating portion regulating a movement amount of the contact portion between the second position and the third position, and a driving depth switching portion switching whether to regulate the movement amount of the contact portion by the driving depth regulating portion.

A screw driving machine includes a contact portion movable from a first position to a second position via a third position by abutting against a driven member to press against the driven member, a driving portion moving a driver bit when the contact portion reaches the third position to drive a screw into the driven member, a tightening portion causing the driver bit to rotate about an axis and tighten the screw after the screw is driven, a tightening depth switching portion switching a tightening depth of the screw by the tightening portion after the screw is driven, a driving depth regulating portion regulating a movement amount of the contact portion between the second position and the third position, and a driving depth switching portion switching whether to regulate the movement amount of the contact portion by the driving depth regulating portion.

A screw magazine having a loading end for receiving a collated strip of screws. The magazine includes a pusher that urges screws of a collated strip toward a discharge end of the magazine. A bit opening at a top and at the discharge end of the magazine is configured to receive a drive bit for driving the at least one screw through a discharge opening at a bottom of the magazine body. Also provided is a collated scrip of screws including a plurality of screws coupled to a rigid support configured to be held in a hand of a single user to allow driving of the screws with the other hand.

An apparatus for inserting implants in a bone comprising a frame having a cartridge receiving chamber and a barrel. A cartridge defining a plurality of chambers is positioned in the cartridge receiving chamber so the chambers are selectively alignable with a longitudinal passage of the barrel. At least one instrument is positioned in one of the chambers, and a plurality of implants is positioned in the other chambers. A drive assembly is engageable with the instrument and the implants. The drive assembly is slidably and rotatably disposed in the frame and is moveable between a retracted position, an engaging position wherein the distal end of the drive assembly is positioned to engage the selected one of the instrument and the implants, and an extended position wherein the drive assembly extends through the chamber to transport the selected one of the instrument or the implant from the chamber to the distal end of the barrel.

An apparatus for inserting implants in a bone comprising a frame having a cartridge receiving chamber and a barrel. A cartridge defining a plurality of chambers is positioned in the cartridge receiving chamber so the chambers are selectively alignable with a longitudinal passage of the barrel. At least one instrument is positioned in one of the chambers, and a plurality of implants is positioned in the other chambers. A drive assembly is engageable with the instrument and the implants. The drive assembly is slidably and rotatably disposed in the frame and is moveable between a retracted position, an engaging position wherein the distal end of the drive assembly is positioned to engage the selected one of the instrument and the implants, and an extended position wherein the drive assembly extends through the chamber to transport the selected one of the instrument or the implant from the chamber to the distal end of the barrel.