Abstract: A striking tool having an ejecting path of a fastener which is formed in a nose part, and configured to sequentially strike fasteners supplied to the nose part, includes an attachment member that can be attached to and detached from a tip end of the nose part. The attachment member can be fixed to and released from the nose part by an operation in a direction different from an ejecting direction of the fastener.

Abstract: A powered staple driver includes a magazine configured to receive staples and a nosepiece having a staple driving channel from which consecutive staples from the magazine are driven, the staple driving channel extending along a driving axis. The magazine obliquely extends from the nosepiece in both a first plane containing the driving axis and a second plane that is perpendicular to the driving axis.

Abstract: A surgical instrument comprised of an end effector having two opposing tissue-compression surfaces, wherein at least one of the tissue-compressing surfaces is movable with respect to the other of the tissue-compressing surfaces, and a handle connected to the end effector. The handle comprises a power source, an electric motor supplied with power from the power source, and a closure assembly comprising a drive part that is selectively moved by the motor along a drive-part axis and is operatively connected to the end effector such that, when the motor is supplied with power, the drive part advances the movable tissue-compressing surface towards the opposing tissue-compressing surface at a differential rate of speed dependent upon a position of the drive part along the drive-part axis.

Abstract: A nailing unit includes a nail box, a nail magazine, a nail pushing block, a tail buckle switch, a nail limiting block fit together with a nail guiding plate through slits is provided. The nail magazine includes a heat-treated guide rail assembly mounted with a nail splitting plate at the end near the nail guiding plate. The nail pushing block connected to a spring is formed with three nail pushing feet adapted to a first, second, and third gaps. The nail guiding plate includes two connecting wings and forms a low-lying guide plate therebetween. Each angle between the guide plate and each connecting wing is respectively fixedly provided with a positioning step along the longitudinal direction.

Abstract: The present disclosure relates to a modular fastener gun comprising at least a gun body that can accept any number of fastener cartridges using a same connection assembly mechanism. In one example, a fastener cartridge comprises a fastener box used to hold fasteners, the fastener box including a first alignment structure and a second alignment structure, the first alignment structure used to detachably connect the fastener cartridge to a fastener gun body, and the second alignment structure used to lock the fastener cartridge to the gun body. In this way, a plurality of fastener cartridges that each can house different fastener types, can readily be used with a same fastener gun.

Abstract: A fastening tool having a latch mechanism that performs a tool-free jam release of a jammed fastener in the nosepiece. The latch mechanism includes a latch plate that is secured to the nose portion of a nosepiece assembly by a latch member and is pivotably releasable from the nose portion by a user's fingers.

Abstract: Nail jamming in a driving tool is easily solved. The driving tool includes: a striking driver configured to drive a driver blade that strikes a fastener; a first blade guide fixed to a main body having the striking driver; and a second blade guide attached to the first blade guide and configured to form an injection path for the fastener together with the first blade guide. The driver blade is arranged so as to go through a space made of two opposite side walls of the injection path, a top wall and a bottom wall, and either one of the two side walls, is separated from the injection path when the first blade guide and the second blade guide are separated from each other.

Abstract: A striking tool includes: a driver which is provided to be slidable toward an ejecting port provided in a tip end of the striking tool so as to strike out a fastener from the ejecting port; a plunger to which the driver is coupled; a plunger urging member which is configured to urge the plunger toward the ejecting port: and a drive mechanism which is configured to move the plunger to accumulate urging force in the plunger urging member. A standby position of the plunger before striking out the fastener can be switched between a usual standby position and a standby position for maintenance closer to the ejecting port than the usual standby position.

Abstract: A hammer tacker is provided, including a grip portion and a body portion; a magazine, including a rail, at least partially received in the housing, being movable relative to the housing between a stapling position and a staple-installing position, including an outlet disposed at a front end of the body portion; a biasing mechanism, including a push member movably mounted to the rail and a constant force spring which is rollable, the constant force spring being positionally attached to the rail through a connection portion and located at a front end of the magazine, and the constant force spring being attached to an inner face of the push member, the push member being movable to be correspondingly above or beyond the connection portion; a striking mechanism, mounted to the body portion and configured to strike at least one staple installed in the magazine.

Abstract: A nail gun includes a gun body, a power module, a muzzle module and an operation module. The muzzle module includes a contact arm resiliently maintained at a normal position. The operation module includes a transmission unit and a trigger unit. The transmission unit includes a transmission member that is connected to the contact arm. The trigger unit includes a trigger member, a trigger arm and a switch member. The trigger arm is mounted in the trigger member, and abuts against the transmission member when the trigger member is not depressed. The switch member is operable to move between a sequential firing position and a repetitive firing position.

Abstract: A quick release device for a panel of nail guns has a quick release mount, a pulling base, and an elastic element. The quick release mount is disposed on a body of a nail gun adjacent to a rear end of an ejecting track, and has two connecting boards and a pivotal rod connected to the two connecting boards. The pulling base is pressably connected to the quick release mount, selectively engages with a panel of the nail gun, and has an engaging hook, a pivot hole, and a pulling arm. The engaging hook is formed on the pulling base, and selectively engages with a limiting claw of the panel to limit a position of the panel relative to the ejecting track. The elastic element is mounted between the quick release mount and the pulling base to provide a returning force to the pulling base.

Abstract: A fastener driver includes a main housing, a drive blade movable from a retracted position to a driven position for driving a fastener into a workpiece, and a gas spring mechanism for driving the drive blade from the retracted position to the driven position. The gas spring mechanism includes a piston movable between a retracted position and a driven position. The fastener driver also includes an extensible cylinder for moving the drive blade from the driven position toward the retracted position. The extensible cylinder includes a cylinder housing coupled one of the main housing or the drive blade, and a rod coupled to the other of the main housing or the drive blade. A vacuum is created in the cylinder housing for biasing the drive blade toward the retracted position.

Abstract: A staple insertion device includes a staple drive chamber, staple reservoir, staple feed mechanism, and staple drive member. The staple drive chamber is formed between a backing plate and a jam plate removably attached to the backing plate. The staple reservoir is configured to receive and hold a plurality of staples and extends from the backing plate to a staple reservoir terminal plate. The staple feed mechanism is operatively connected to the staple reservoir and is configured to feed the plurality of staples from the staple reservoir into the staple drive chamber through the backing plate. The staple drive member is configured to advance downwardly through the staple drive chamber so as to drive a staple out of the staple drive chamber.

Abstract: An accessory for a fastening gun includes a magazine assembly with a feed end and a discharge end and configured to support a series of staples in a pre-discharge orientation and with a feed mechanism for feeding the staples from the feed end to the discharge end. A drive member guide assembly is mounted on the magazine assembly and is configured so that a staple drive member can be mounted in the drive member guide assembly and can be driven and retracted along a predetermined path with respect to the magazine assembly, so that, when driven, the drive member can engage a staple to drive legs of the staple into respective components, the drive member guide assembly being configured for mounting on the fastening gun with the drive member connected to a piston or the like of the fastening gun.

Abstract: A signal barrier for a sensor device can include at least one wall that forms an inner space, wherein the at least one wall comprises a material for reducing an amount of a signal from entering the inner space, wherein the at least one wall is configured to be disposed adjacent to a transceiver element of the sensor device, wherein the transceiver element is directed to the inner space.

Abstract: An adapter for a flooring nail gun is provided with a muzzle member including at least one set of two inclined cavities; a moveable member including at least one set of two inclined protrusions at an end, the inclined protrusions being disposed in the inclined cavities; and a quick releasing device disposed on the inclined protrusions. The quick releasing device includes a pressing member, a spring member, and a lever, and wherein the pressing member and the muzzle member are joined, the lever and the pressing member are pivotably secured together, and the spring member has one end anchored at the pressing member and the other end pivotably secured to the lever. The moveable member can be opened for troubleshooting in case of malfunction.

Abstract: A nail channel for a fastening tool. The nail channel can be a unitary piece or have a variety of parts. The nail channel can have a first portion provided by a fastener magazine and a second portion provided by a nosepiece insert. The nail channel can be formed when the nosepiece insert is reversibly engaged with a nose end of a nailer magazine. The nail channel can also position a fastener, such as a nail, for driving into a workpiece. Methods of forming and using the nail channel are also disclosed.

Abstract: A flat-clinch stapler has a base, a magazine assembly, a handle device, a flat-clinch device and a buffering device. The magazine assembly and the handle device are pivotally connected with the base. The flat-clinch device has a slider and a moving board. The slider is slidably mounted on the base. The moving board is mounted above the slider and is pivotally connected with the base. The buffering device has a protrusion, a block and an elastic member. The protrusion is securely disposed on the moving board. The block is slidably mounted on the base and abuts the protrusion. The elastic member abuts the block and the base. When the moving board is pivoted, the block is driven by the protrusion to move.

Abstract: The invention relates to a device for setting fasteners, in particular a driving tool, comprising at least one striking pin for a particular fastener, wherein the striking pin and the fastener to be set by the striking pin are guided at least in some sections in a channel, which comprises at least one stationary channel part and a channel closure flap arranged so as to be pivotable relative to the channel part. The channel closure flap is held at the upper end thereof by an eccentric shaft that can be adjusted about the rotational axis, wherein the closure flap comprises at least one holding part corresponding to the channel part for forming a lock. The eccentric shaft preferably comprises two end sections oriented coaxially to each other and a center part arranged eccentrically to the end sections, wherein the closure flap is rotatably mounted on the center part of the eccentric shaft.

Abstract: A fastener tool includes a housing comprising a nosepiece and a magazine connected to the housing for storing a fastener. A driving mechanism is disposed within the housing for driving the fastener into a workpiece. A trigger assembly is pivotally attached to the housing for activating the driving mechanism. A nosepiece cover is pivotally attached to the nosepiece. A latch is pivotally attached to the nosepiece cover. A latch wire is pivotally attached to the latch for engaging at least one hook disposed on the nosepiece. The latch wire has a portion extending between the latch and the hook, the portion having at least two bends.

Abstract: A tool free interchangeable fastener guide is provided for use with a fastener tool having a nosepiece with a captured transverse pin and a back plate. The guide includes a front plate having a tool engaging end and an opposite fastener outlet end, an outer surface and an inner surface. A butt plate is pivotably joined to the outer surface, and a spring clip has a first end pivotably secured to the butt plate and a second end configured for attachment to the fastener tool. The tool engaging end has an open slot constructed and arranged for pivotally engaging the captured pin, the front plate being disengageable from the captured pin without the use of tools.

Abstract: According to an aspect of the present invention, there is provided a nailing machine, including: a drive unit that drives a blade to strike a nail; a blade guide that includes a guide groove to guide the blade; a guide plate that is attached on the blade guide to cover the guide groove; and a magazine that is held with respect to the blade guide and that feeds a nail to the guide groove, wherein the nailing machine further includes a blade fixing unit that limits a movement of the blade when the guide plate is detached.

Abstract: A fastener driving tool arranged to drive fasteners into a workpiece includes a support, a pair of sub-assemblies movably mounted on the support, each sub-assembly comprising a motor and an associated flywheel, and a nose part retractable relative to the support. The tool is arranged such that, in use, when the nose part is retracted, its movement relative to the support mechanically forces the sub-assemblies toward each other. The forcing of the sub-assemblies toward each other by the retraction of the nose part may move the sub-assemblies from an inoperative position to an operative position.

Abstract: A fastener outlet assembly for a fastener driving tool includes: an outlet passage arranged to expel fasteners from the assembly to a workpiece during use, the outlet passage having one or more walls; and a detector arranged to detect whether a fastener is present in the outlet passage. The detector comprises at least part of a cover that provides at least part of a wall of the outlet passage, the cover being movable with respect to the remainder of the outlet passage to open the outlet passage and gain access thereto.

Abstract: A fastener driving tool arranged to drive fasteners into a workpiece includes a support, at least one wheel movably mounted on the support, a driver arranged to contact and he guided by the wheel when the wheel is in an operative position in use, a nose part retractable relative to the support, and a connection mechanism to operatively interconnect the nose part with the wheel. The tool is arranged such that, in use, the retraction of the nose part causes the connection mechanism to move the wheel from an inoperative position to the operative position. Subsequent forward movement of the driver guided by the wheel toward the nose part causes the operative interconnection between the nose part and the wheel to be broken. Forward movement of the nose part relative to the support, subsequent to the operative interconnection between the nose part and the wheel being broken, causes the operative interconnection between the nose part and the wheel to be re-formed.

Abstract: A cordless nailer is provided having a nosepiece assembly with improved features. The nosepiece assembly includes a driver retention feature that is provided to retain a drive blade from accidentally escaping the nailer. The nosepiece assembly includes a nosepiece, a nosepiece cover coupled to the nosepiece and moveable between a first closed position and a second open position. The nosepiece cover includes a surface formed on an end thereof, wherein at least one of the nosepiece and nosepiece cover forms a channel. A driver is disposed within the channel, wherein as the nosepiece cover is moved from the first closed position to the second open position, the surface of the nosepiece cover prevents the driver from moving from the channel.

Abstract: A device for impacting a fastener in one embodiment includes a trigger. A trigger disabling mechanism changeable between a first condition wherein operation of the trigger is not disabled and a second condition wherein operation of the trigger is disabled is also included. The device includes a nose piece configured to change the trigger disabling mechanism from the second condition to the first condition. The nose piece includes including a first nose portion removably coupled to a second nose portion. The first nose portion and the second nose portion define a channel therebetween through which a fastener is driven.

Abstract: A fastener driving apparatus includes a motor with an output shaft. The motor is shiftable between a de-energized condition in which it can not be actuated to move the output shaft, and an energized condition in which it can be actuated to move the output shaft. The apparatus further includes a nose and a control device. The nose is shiftable between differently configured conditions, including a first condition for guiding a fastener driven by the output shaft, and a second condition for releasing a fastener that jams when the nose is in the first condition. The control device maintains the nose in the first condition while the motor remains in the energized condition.

Abstract: A pneumatically operated stapler that has a single selectively operable adjuster operatively associated with a staple leg diverter. The single selectively operable adjuster is constructed and arranged to be adjusted within a range of leg deflecting positions to affect the lateral movement of the staple leg diverter. The different leg deflective positions effects an amount to which the diverter will deflect the legs of the driven staple during a drive stroke. A single operation of the single selectively operable adjuster both moves the adjuster and retains the adjuster in an adjusted position within the range of leg deflecting positions.

Abstract: A nose assembly for a floor nail gun includes: a base having a bottom end that has a base contact surface; a nose plate having an abutting end defining a nose abutting surface, and a contact end having first and second nose contact surfaces; and an urging mechanism interconnecting the base and the nose plate. The nose plate is movable relative to the base from a first position, in which one of the first and second nose contact surfaces abuts against the base contact surface, to an intermediary position, in which the contact end of the nose plate is spaced apart from the bottom end of the base, and is further movable relative to the base from the intermediary position to a second position, in which the other of the first and second nose contact surfaces abuts against the base contact surface.

Abstract: A fastener driving apparatus includes a motor with an output shaft. The motor is shiftable between a de-energized condition in which it can not be actuated to move the output shaft, and an energized condition in which it can be actuated to move the output shaft. The apparatus further includes a nose and a control device. The nose is shiftable between differently configured conditions, including a first condition for guiding a fastener driven by the output shaft, and a second condition for releasing a fastener that jams when the nose is in the first condition. The control device maintains the nose in the first condition while the motor remains in the energized condition.

Abstract: A device for impacting a fastener in one embodiment includes a trigger, a trigger disabling mechanism changeable between a first condition wherein operation of the trigger is not disabled and a second condition wherein operation of the trigger is disabled, and a nose piece configured to change the trigger disabling mechanism from the second condition to the first condition, the nose piece including a first nose portion removably coupled to a second nose portion, the first nose portion and the second nose portion defining a channel therebetween through which a fastener is driven.

Abstract: A cordless nailer is provided having a magazine assembly with improved features. An improved latch mechanism for clearing nail jams is provided that reduces wear on the latch. A driver retention feature is provided to retain a drive blade from accidentally escaping the nailer. A pusher assembly is provided having a simplified and efficient construction. A pusher retention feature is provided that prevents the driver blade from impacting a nail pusher. A nail retention feature is provided to allow easy loading and unloading of nails into the nailer. Finally, a method of assembling the magazine assembly is provided.

Abstract: A fastener driving device includes a nose assembly carried by a housing that has a reservoir. The nose assembly has a fastener drive track. At least a portion of the fastener drive track is defined by a movable portion of the nose assembly. A fastener driver is movably mounted in the housing and configured to enter the drive track and drive successive leading fasteners into a workpiece. A head valve is constructed and arranged to be actuated so as to allow the pressurized gas to move the fastener driver through an operating cycle. An actuator is constructed and arranged to actuate the head valve. The actuator includes a trigger valve constructed and arranged to allow passage of the pressurized gas from the reservoir to a chamber above the head valve, and a contact valve operatively connected to the movable portion of the nose assembly.

Abstract: The nail presser lid structure for a nailer includes a coupling end and a swinging end. The swinging end is provided with a flexible presser, formed of a presser portion and a spring. The presser portion protrudes from the swinging end to press on the closing side of the removable cover. An inclined guide plane is placed outside of the presser portion. When the removable cover presses the inclined guide plane, the presser portion is forced to return and press the spring to accumulate elastic restoring force. When the closing side of the removable cover overpasses the inclined guide plane, the presser portion will recover again and press the positioning portion of the closing side, such that the nail presser lid and removable cover of the nail box are closed flexibly, offering greater operational friendliness and practicability.

Abstract: A quick-releasable nail output nozzle for a nail gun includes a nozzle base, which is affixed to a nail outlet port of a nail magazine and has a nail output groove on the front side for guiding out a bar of nails, two side wings, and two hooks spaced below the side wings. A nozzle cover is covered on the front side of the nozzle base and has two flanges with protruding blocks respectively hooked on the back side of the side wings of the nozzle base. A locking lever is pivoted to the nozzle cover. A hook rod is pivoted to the locking lever for hooking up with the hooks of the nozzle base by means of the control of the locking lever.

Abstract: A fastener outlet assembly for a fastener driving tool includes: an outlet passage arranged to expel fasteners from the assembly to a workpiece during use, the outlet passage having one or more walls; and a detector arranged to detect whether a fastener is present in the outlet passage. The detector comprises at least part of a cover that provides at least part of a wall of the outlet passage, the cover being movable with respect to the remainder of the outlet passage to open the outlet passage and gain access thereto.

Abstract: A collapsible protective tip for a fastener driver workpiece contact element includes a body having an insertion end configured for receiving the workpiece contact element and a substrate contact end, and at least one locator nub projects from the substrate contact end.

Abstract: An actuator housing (20) for use on a pneumatic nailer (10), the actuator housing comprising a casing (22) defining a cartridge insertion opening (24), and a selectively activated actuator cartridge (50) which is inserted in the casing through the cartridge insertion opening. The actuator housing further comprises a releasable second fastening means (30, 69) which allows releasable extraction of the actuator cartridge from the casing. The actuator cartridge comprises an actuator head (54) for sealing engagement with the cartridge insertion opening of the casing and extending outwardly of the casing. The actuator cartridge also comprises a piston assembly (58) received within the casing, the piston assembly comprising a cylinder (100) defining a cylinder chamber (101) therein and a plunger (120) movably mounted within the cylinder chamber The actuator cartridge further comprises first fastening means (71, 104) to fasten the actuator head to the cylinder of the piston assembly.

Abstract: A nose assembly for a floor nail gun includes: a base having a bottom end that has a base contact surface; a nose plate having an abutting end defining a nose abutting surface, and a contact end having first and second nose contact surfaces; and an urging mechanism interconnecting the base and the nose plate. The nose plate is movable relative to the base from a first position, in which one of the first and second nose contact surfaces abuts against the base contact surface, to an intermediary position, in which the contact end of the nose plate is spaced apart from the bottom end of the base, and is further movable relative to the base from the intermediary position to a second position, in which the other of the first and second nose contact surfaces abuts against the base contact surface.

Abstract: An adjustable adapter configured to position a fastening tool for driving a fastener into tongue-and-groove flooring material in order to secure the flooring material to a subfloor is disclosed. The adapter comprises a fastening tool mounting plate, a base slidably mounted to the bottom of the mounting plate and a support plate slidably mounted to the top of the mounting plate. A nose plate of the fastening tool is secured to the mounting plate between the mounting plate and the support plate and a safety actuator arm is disposed between the mounting plate and the nose plate. The base and the support plate are movable such that the adapter can be configured to engage the tongue and the top surface of various sizes and configurations of tongue-and-groove flooring materials in order to maintain a desired fastener driving angle and insertion location.

Abstract: A pneumatically operated stapler that has a single selectively operable adjusting mechanism that is constructed and arranged to be adjusted within a range of leg deflecting positions is disclosed. The stapler includes a staple leg diverting member that is carried by a portable structure for lateral movement into and out of a drive track. Successively driven staples are driven with a selected leg deflection between a minimum deflection and a maximum deflection. The adjusting mechanism is selectively adjusted within the range of positions to adjust the amount of bias of a biasing structure acting on the leg diverting member.

Abstract: In a fastener-driving tool with a magazine, a nosepiece, and a driver blade slidably reciprocating relative to the nosepiece for driving fasteners, a mechanism for preventing jamming includes a follower slidably disposed inside the magazine for urging fasteners toward the nosepiece, and having a formation for engaging the driver blade and preventing driver blade reciprocation after the last fastener in the magazine has been driven.

Abstract: A stapling comprises a nose having a top seat, a nose cover, and a fastening latch. The top seat is mounted on the top of a magazine and is provided with a plurality of retaining portions. A top cover is provided with a plurality of retaining portions and is mounted on the top seat such that the retaining portions of the top cover are retained by the retaining portions of the top seat. The fastening latch is pivoted to the top cover such that a retaining ring of the fastening latch is retained by a holding slot of the retaining portions of the top seat. The top seat and the top cover are securely held together in such a way that they work together to confine a staple which is discharged by the stapling gun, thereby ensuring the accuracy and precision of driving staples.

Abstract: A driver guide for use with a fastener-driving tool has a first guide member mounted to the tool body of the fastener-driving tool. A mount device is coupled to the first guide member and serves to mount a second guide member to the first guide member. A fastener guide channel is defined between the first guide member and the second guide member. The mount device is operable in at least three different modes including a first, second, and third mode, while the mount device remains coupled to the first guide member. In the first mode, the second guide member can be fixed in position relative to the first guide member. In the second mode, the second guide member is movable relative to the first guide member within a limited range. In the third mode, the second guide member can be removed from the first guide member.

Abstract: Apparatus for driving fasteners includes a barrel, a fastener guide which retreats as the apparatus is pressed against a substrate, a feed magazine, receiving a loader of fasteners, and a safety element configured to allow a fastener to be driven only after the fastener guide has retreated. There is a safety shoe configured to, when there is no fastener in the barrel, be moved into a safe position and prevent the retreat of the fastener guide, and including a tell-tale of the safe position of the safety shoe.

Abstract: An improved modular magazine of fixing elements for a pneumatic gun (100) comprises an elongated casing (2), which is parallelepiped shaped and internally hollow, fit to be removably coupled to the pneumatic gun (100). The casing (2) has, at one end, a first flat and elongated head (14), the remaining end being open, and it has, at one of the lateral surfaces, a longitudinal opening (10) through which an inner support (3) of fixing element (90) can be slidingly inserted within said casing (2) in an assembled condition (A) of magazine (1). The inner support (3) includes a guide (8) fit for slidably housing the fixing element (90); a pusher (4) for said fixing elements (90) movable on said guide (8); a second flat and elongated head (5) fixed to an end of guide (8), fit for mating in the assembled condition (A) the first head (14); an engagement element (6) fixed to the remaining end of guide (8) for locking the inner support (3) to the pneumatic gun (100).

Abstract: A stapler nose includes a passage defined therein and a plurality of stops extend from two sides of a face of the nose. A top plate is mounted on the face of the nose has positioning blocks which are engaged with the stops. Two first lugs extend from a face of two sides of the top plate. Two hooks are connected to one pair of the stops and each hook has an engaging recess. A fastening device includes a pivotable member which includes two second lugs and each second lug has a notch. The two second lugs are pivotably connected between the two first lugs. An enclosed loop has a first straight section for being engaged with the notches in the two second lugs and a rear straight section for being engaged with the first engaging recesses of the hooks.

Abstract: A fastener driving tool includes a tool body. A driver guide is coupled to the tool body and defines a fastener driving channel though which fasteners are driven out. A magazine is coupled to the driver guide and serves to store the fasteners. A detecting device serves to detect when no fastener exists within the fastener driving channel. The detecting device includes a detection member and a detection recess formed in a fastener driving channel. The detection member has a front end in contact with the fasteners stored within magazine, so that the detecting member engages the detection recess when no fastener exists within the magazine and the fastener driving channel. The detection recess is positioned not to oppose the head of the fastener that has been fed into the fastener driving channel.

Abstract: A nail guide mechanism, suitable for use with a wide variety of nail guns, having a mounting bracket to permit ready attachment and/or removal in the field. The guide mechanism, when mounted, is oriented about the channel defined by the nose of the nail gun. The guide mechanism includes a partially pre-compressed spring that induces a bias on a pivoting arm such that the arm is caused to protrude at least partially into the channel. The arm is thus positioned to continuously exert a force on the nails as they are driven down the channel past the arm. Because the spring is only partially pre-compressed, the positioning of the arm is responsive to changes in conditions inside the channel, such as when the head of a nail passes by the arm. The force exerted by the arm, under the influence of the spring, acts substantially along the radial axis of the nail, and is exerted on the nail during at least a portion of the time that the nail is being impelled by the driving mechanism of the nail gun.