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 pneumatic nail gun includes a gun body having a cylinder therein; a hitting piston disposed in the cylinder; a main air housing collecting high pressure air; a trigger at one end of the main air housing; a main passage disposed at a peripheral portion of the cylinder, the main passage being connecting with the main air housing for gathering high pressure air therein; and a bottom valve disposed at a bottom peripheral portion of the cylinder, the bottom valve being driven to upwardly move for continuously guiding high pressure air into the bottom chamber to drive the hitting piston upwardly move to reposit when the trigger is released. When the high pressure air in the main passage is recharged, the bottom valve is driven by the high pressure air gathered in the main passage to move downward to reposit after the hitting piston being reposited.

Abstract: A pneumatic fastening tool may include a tool housing including a dispensing portion for dispensing a fastener, a handle portion and an inlet configured to receive input of compressed air. A cap assembly may include a cap housing having an opening and mounted to the tool housing. A deflector may be configured to direct exhausted air through an outlet in a first direction. The deflector may have a stem received in the opening. The stem may define a bore extending in a second direction that is distinct from the first direction. A locking member may extend at least partially in the bore and be configured to rotatably capture the deflector relative to the cap housing.

Abstract: A pneumatic fastening tool includes a housing having a fastening tool portion including a dispensing portion for dispensing a fastener. An exhaust assembly may be defined on a distal end of a handle portion. The exhaust assembly may include an end cap fixedly mounted to the housing and define a first annular engagement surface. A deflector may be rotatably mounted to the end cap and define a second annular engagement surface. The deflector may be configured to direct exhausted air from the tool in a plurality of user defined directions depending on the rotational orientation of the deflector. A friction member may be disposed between the first and second annular engagement surfaces. The friction member may provide a seal between the first and second annular engagement surfaces and permit rotation of the deflector relative to the end cap.

Abstract: A pneumatically powered nail gun having a duster mechanism which is also pneumatically powered with the same pneumatic source. The nail gun includes a main body having a lower end and defines therein a compressed air chamber. A cylinder piston arrangement is disposed in the main body, and the compressed air is selectively applied to the piston for moving a driver blade connected to the piston to drive a nail. The duster mechanism includes a duster nozzle provided at the main body for ejecting a compressed air therethrough. A pressure release valve is disposed at an air passage extending between the duster nozzle and the compressed air chamber for selectively shutting off a fluid communication therebetween. A pressure regulating section is disposed at the air passage for providing a compressed air passing through the duster nozzle at a pressure lower than that in the compressed air chamber.

Abstract: A method for operating a fastener driving device is disclosed. The method includes moving an input actuator of an actuating assembly into an operative position in response to movement of a contact trip assembly and a trigger member into the operative positions thereof. The contract trip assembly includes an output actuator. The method also includes moving an actuating member with respect to the trigger member between a first position and a second position, and moving a mode selecting member together with the actuating member relative to the trigger member between the first and second positions of the actuating member, and relatively moving the mode selecting member with respect to the actuating member.

Abstract: A cylinder is constituted such that the cylinder includes a large diameter portion constituted by forming a portion thereof brought into contact with an O ring by a diameter larger than a diameter of other portion when a piston is disposed at an upper dead center and a small diameter portion formed downward from the large diameter portion, and a fastening margin is provided between an outer periphery of the O ring and an inner periphery of the cylinder even when the piston is disposed at any position from the upper dead center to a lower dead center and a clearance is provided between an inner periphery of the O ring and an outer periphery of a groove.

Abstract: A device and method for temporarily mounting a tool to a member such as an upright board without the need for any prior attachments to the board. A member securing element attached to the tool is secured to the upright board when gripping surfaces engage opposite sides of the board as a result of rotation of the tool brought about by an off-set center of gravity.

Abstract: An adjustable depth-of-drive mechanism for a fastener driving tool having a housing structure defining an axis, and a nosepiece extending generally axially from the housing structure, includes a lower work contact element having a sleeve for reciprocatingly receiving the nosepiece, an upper work contact element attached at a first end to the housing structure, a rotatable thumbwheel assembly having a first portion engageable with the lower work contact element, a thumbwheel assembly accessible by a user and a second portion having at least one detent assembly, and a retaining mechanism for retaining the thumbwheel assembly relative to the upper work contact element where the second portion is received by a second end of the upper work contact element, where during thumbwheel rotation relative to the first portion in either direction, the position of the lower work contact element is moved relative to the nosepiece.

Abstract: A piston assembly for a staple gun has a piston head, a driving rod and a fastener. The piston head has a connecting post formed on and protruded axially from a top of the piston head and having two mounting blocks and an inserting recess. Each mounting block has two indents and two holding tabs. The inserting recess is defined between the inner sides of the mounting blocks, and the holding tabs extend into the inserting recess. The driving rod is connected securely with the piston head and has a body, a connecting segment and a driving segment. The connecting segment is mounted and held in the inserting recess and is engaged firmly with the holding tabs. The driving segment is formed on the upper end of the body to press staples out of the staple gun. The fastener is connected with the driving rod and the piston head.

Abstract: A pneumatic nail gun includes a gun body, a movable cylinder, a piston and a slidable sleeve valve. The gun body has a main air housing collecting a compressed high pressure air with a constant pressure, and a trigger at one end of the main air housing driving the high pressure air to shoot a nail. The movable cylinder is disposed in the main housing, which moves upward when the trigger is pressed, and moves downward for reposition when the trigger is released. The piston is slidably movably disposed in the cylinder, which has a driver blade extending from the piston. The driver blade protrudes out of the gun body for punching against the nail in accordance with a downward movement of the piston. The slidable sleeve valve is assembled at an outer peripheral surface of the cylinder, which introduces high pressure air to drive the piston move upward when the cylinder moves downward to its lower dead center, and is driven downward after the piston moves to its upper dead center.

Abstract: An adjustable exhaust assembly for a pneumatic fastener includes a base, which includes a base plate and a protrusion protruding from the base plate. The protrusion is centrally hollow and includes an inner surface and an outer surface. The base plate includes an inlet opening and an exhaust opening defined therethrough. The inlet opening is interconnected with a channel defined by the inner surface of the protrusion. A cap is coupled to and supported by the base and includes an exit opening. A quick connector coupler is positioned inside the channel defined by the inner surface of the protrusion. When coupled to a pneumatic fastener, the quick connector coupler is suitable for connecting to an air supply hose to input compressed air to the pneumatic fastener via the channel defined by the inner surface of the protrusion and the inlet opening, and exhaust from the pneumatic fastener may exit through the exhaust opening and the exit opening.

Abstract: The shift lever switching mechanism for a trigger is mounted onto the trigger body of a nailer. The mechanism has a guide groove passing laterally through the trigger, two positioning sections placed at intervals, and a shift lever. A control button is placed at one end of the shift lever with a container. Thus, the first positioning section aligns when the shift lever moves to the first position, and the second positioning section aligns when the shift lever moves to the second position. A flexible locator, mounted onto the shift lever and provided with a flexible snapper, is snapped with the first positioning section when the shift lever moves to the first position, or is snapped with the second positioning section when the shift lever moves to the second position. A motion tab has one end linked to the shift lever and another end extended opposite to form a driving section.

Abstract: A pneumatically operated fastener driving tool capable of avoiding accidental release of a head bumper from a housing. The head bumper is made from an elastic material and is compressedly fitted to the housing. The head bumper has a contacting portion deflectable upon application of compressed air. A discharge port is formed at one of the housing and the head bumper to discharge the applied compressed fluid to an atmosphere.

Abstract: A nailing machine includes a switch operating member 40 for setting to switch respective modes of single striking and continuous striking, and pivot restricting mechanism for restricting a contact lever 34 for operating a valve stem 19 of a start valve 15 from being pivoted in cooperation with the switch operating member 40 set to switch to the single striking mode. By the pivot restricting mechanism, an amount of pivoting the contact lever 34 at a position of operating to draw a middle of a trigger lever 31 in the single striking mode is restricted, and a valve stem 19 is maintained to maintain a state of operating to make the start valve 15 ON. Therefore, a reaction of the nailing machine in the continuous striking is reduced, further, dribble in the single striking mode is prevented from being brought about. In addition thereto, an erroneous operation in connecting an air chuck is prevented.

Abstract: An injection nozzle 21 for injecting a combustible gas into an annular combustion chamber 10 formed above a driving cylinder 4 is formed so as to face the interior of the combustion chamber 10, in which a rotary fan 24 for mixing a combustion gas supplied into the combustion chamber 10 and air is provided. A vortex generator 33 is formed in an upstream side of the injection nozzle 21 in an air flow formed in the combustion chamber 10 by the rotary fan. Vortexes are generated near the injection nozzle 21 in the combustion chamber 10 by the vortex generator 33, so that the mixing of the combustion gas and air is promoted.

Abstract: An arresting mechanism to prevent a nail gun from cocking and firing when there are no nails in its magazine. A trigger includes a retaining part organized to prevent the trigger from cocking to fire. A cotter is arranged for sliding engagement in the trigger mechanism. The cotter is provided along an axial length with a convex portion. A swingable sensing component is pivotally mounted outwardly of the housing with a magazine end projecting into the magazine and pushed outwardly by nails therein. Consequently the other end of the sensing component is pushed on to and holds the cotter during normal operation so that it does not activate the retaining part. When no nail is in the magazine the magazine end of the sensing component is no longer pushed outwardly so the cotter is moved by a spring to position its convex portion to activate the retaining part so as to jam the trigger whereby it can not cock and shoot.

Abstract: A powered stapler includes a housing and a stapling engine within the housing. The stapling engine includes a staple driving assembly and a rotational drive train operable to actuate the staple driving assembly. A stack height compensation mechanism is integrated with the rotational drive train of the stapling engine and is distinct from any portion of the housing. The stack height compensation mechanism is operable to enable the stapling engine to compensate for varying stack heights of sheets to be stapled by the powered stapler.

Abstract: An exemplary pneumatic nail gun includes a gun body having a nail punching piston and a nail pushing passage. A nail pusher has a nail pushing cylinder connecting to the nail pushing passage. The nail pushing cylinder includes a nail pushing piston and a spring. An air distribution ring having an axial through hole and a radial through hole. The axial through hole guides the high pressure air to drive the nail punching piston to reposition after the nail punching piston downwardly moving to punch the nails. The radial through hole guides the high pressure air into the nail pushing cylinder via the nail pushing passage to drive the nail pushing piston to take the nails, and also exhaust the high pressure air in the nail pushing cylinder and the nail pushing passage to make the nail pushing piston reposition to push the nails when the nail punching piston reposition.

Abstract: A combustion tool for use with a fuel cell having a fuel metering valve is provided. The fuel metering valve of the fuel cell emits a prescribed volume of fuel from a fuel metering chamber through a valve stem. The tool includes a fuel cell chamber configured for receiving the fuel cell. A solenoid actuator is in operational relationship to the fuel cell chamber. The solenoid actuator is configured for pushing the fuel cell against a biasing force associated with the fuel cell. When the biasing force is overcome, the fuel cell emits fuel.

Abstract: A pneumatic nail gun includes a gun body with a trigger, collecting a compressed high pressure air with a constant pressure, a movable cylinder installed in the gun body, a hitting piston disposed in the cylinder, a valve ring formed outside the cylinder, a head valve disposed on the top of the cylinder, at least one return passage formed outside the cylinder, and a valve bolt disposed in the return passage. Before the trigger is pressed, the high pressure air drives the valve ring to keep the cylinder at the upper position to close the head valve. When the trigger is pressed, the high pressure air drives the cylinder move downwardly to open the head valve for guiding the high pressure air to drive the piston downwardly move to hit nails. When the trigger is released, the high pressure air drives the valve bolt open for guiding the high pressure air via the return passage to drive the piston rapidly move upwardly to reposit.

Abstract: A pneumatic nail gun has a gun body having a main air housing; a cylinder fixed in the main air housing; a hitting piston slidably movable in the cylinder; a dish-shaped piston disposed at a top end portion of the cylinder; an upper slidable sleeve valve disposed at a top portion of an out peripheral surface of the cylinder, which is driven to move upward by the high pressure air in the main air housing; and a lower slidable sleeve valve disposed at a lower portion of an outer peripheral surface of the cylinder, which is driven to move downward for guiding the high pressure air into the cylinder for upward deposition of the hitting piston when the upper slidable sleeve valve moves upward, and is driven to upward reposite when the hitting piston moves to its upper dead center.

Abstract: A restriction mechanism for a pneumatic nailer includes a secondary valve unit including a second axle with a seal ring mounted thereto and the second axle is movable along a hollow axial passage of the second frame. A second frame includes an annular portion, the hollow axial passage and guide holes. A seal ring is mounted to the annular portion and the second chamber communicates with the hollow axial passage via the guide holes. The seal ring on the second axle removably seals the hollow axial passage to control communication between the second frame and the second axle. The second valve unit has to be pulled before pulling the trigger to shoot the nail. The sequence cannot be reverse so as to form a safety operation mechanism.

Abstract: A palm nailer includes a main body, a rotating table mounted on the main body, a mounting seat mounted on the rotating table to connect with a nail magazine. The mounting seat and the nail magazine can rotate with the rotating table. A brake lever is pivotally engaged with the rotating table. The palm nailer further includes a denticulate plate with a number of alveolus formed around the periphery thereof. The brake lever can be resisted by the alveolus to prevent the rotating table rotating so that the nail magazine is fixed at a proper position. The brake lever may also be released from the alveolus to make the rotating table rotate so that the nail magazine can rotate around the main body.

Abstract: The present invention provides a head valve assembly for a pneumatic fastener including a piston assembly reciprocated within a cylinder assembly for driving a fastener and a housing having an end cap for at least partially enclosing the head valve assembly. The head valve assembly includes a valve piston for causing supply pressure to be ported to the piston assembly for moving the piston assembly within the cylinder assembly from a non-actuated position to an actuated position for driving the fastener. Further, an inner cap is disposed within the end cap around the valve piston. The inner cap includes an inlet port for porting pressure to the valve piston. In addition, a main seal is coupled to the valve piston for sealing the cylinder assembly from supply pressure while pressure is ported to the valve piston by the inner cap for holding the piston assembly in the non-actuated position.

Abstract: A combustion-engined setting tool for driving fastening elements in a constructional component, includes a guide cylinder (12), a setting piston (11) displaceable in the guide cylinder (12), a combustion chamber sleeve (15) displaceably arranged at the first axial end (27) of the guide cylinder (12), a press-on element (30) supported at the second axial end (28) of the guide cylinder (12), and a transmission device for connecting the press-on element (30) with the combustion chamber sleeve (15) and formed as a cable drive (20) having a transmission member (21, 121) and at least one deflection roller (24, 124) for the transmission member (21, 121) and supported on the press-on element (30).

Abstract: A combustion-engined setting tool for driving fastening elements in a constructional component includes a guide cylinder (12), adjoining the combustion chamber (14) and in which a setting piston (11) is displaceable, a press-on element (30), and a transmission device for connecting the press-on element (30) with the combustion chamber rear wall (16) for axially displacing same in response to a press-on stroke of the press-on element, with the transmission device being formed as a cable drive (20) having a transmission member (21) and at least one deflection roller (24) for the transmission member (21).

Abstract: A pneumatically operated power tool such as a screw driver, a nail gun and an impact wrench those being driven by a pneumatic pressure. A pressure reduction valve is provided between a connector connected to a compressor and a compressed air chamber defined in an outer frame of the power tool for supplying a pressure lower than the pressure at the connector to the compressed air chamber. A passage section is provided independently of the pressure reduction valve and communicating the connector with the compressed air chamber. A valve member is disposed at the passage section for selectively applying compressed air from the connector to the compressed air chamber directly through the passage section.

Abstract: A fastener driving device for use in driving a fastener into an elongated contoured portion of a workpiece is disclosed. The elongated contoured portion has a surface that is contoured perpendicular to a longitudinal direction of the elongated contoured portion. The device includes a contact arm that is operatively connected with the trigger assembly, and a contoured contact foot for engaging the workpiece. The contact arm is constructed and arranged to move relative to a housing assembly of the driving device when the contact foot is pressed against the workpiece. The contact foot has a contoured engaging surface that includes a recess that is shaped to generally complement the shape of the contoured surface of the workpiece.

Abstract: A combustion power tool having a first combustion chamber, a second combustion chamber, an igniter, a partition, and a driving mechanism. Flammable gas is introduced or charged into the first and second combustion chamber. The igniter is disposed in the first combustion chamber. The partition separates the first combustion chamber from the second combustion chamber. Communication holes are formed in the partition at different angles with respect to the longitudinal direction of the first combustion chamber. The communication holes communicate the first combustion chamber with the second combustion chamber. The driving mechanism performs a predetermined processing work by utilizing an explosive combustion pressure.

Abstract: A fastener driving tool includes: a driver blade adapted to drive nails joined to one another into an object in order; a nose adapted to guide the driver blade and nails; and a guide surface of a projection adapted to guide a head portion of a first nail struck out into an exit hole of the nose so that the second nail is not exposed to the exit hole. The guide surface of the projection is formed to a shape identical with that of the head portions of the nails.

Abstract: The nail tray hoist structure for coil nailer includes: several positioning slots spaced through out the side wall of the central column of the coil nailer base; a positioning through hole, placed on the vertical sleeve of the nail tray; a positioning body, placed in the positioning through hole actively; a braking tube, placed on the outside of the vertical sleeve; and an upper elastic component, having a top blocked by the limit component used by the vertical sleeve. The bottom of the elastic component stops the balance block of the braking tube, so that it can push down the braking tube. By so doing, the hoist structure of the nail tray only needs pushing and pulling movements on the braking tube, which gives the users more convenience and ensures the strength of the structure.

Abstract: The present invention provides a structure of the inner head housing, which is placed inside the nail tip cover. The structure includes a movable base of the air-resistant ring, which is placed inside the slot of the fixed liner ring. The resilient component is used to support the movable base towards the direction of the cylinder under normal circumstances. The fixed liner ring is a single component; therefore, it is easy to process and make it smooth. The inner side of the nail tip cover does not need to be processed; therefore, it greatly reduces cost of processing and becomes more practical.

Abstract: A portable pneumatic fastening tool has an onboard compressor assembly to alleviate the need for an external air compressor. The onboard compressor assembly includes a motor and a compressor mounted to the tool body. The motor can be powered by a detachable battery mounted to a cover for covering the onboard compressor assembly. A portable pneumatic fastening tool may also be powered by a portable compressor assembly which can be borne by the user.

Abstract: A combustion type power tool having an arrangement avoiding direct striking of a drive shaft against a cylinder head when combustion pressure is exerted. A motor is disposed at the cylinder head and includes a motor body and a drive shaft extending in an axial direction and protruding into a combustion chamber. A fan is connected to the drive shaft to be rotatable within the combustion chamber. A buffer piece made from an elastic material is supported to the cylinder head. The buffer piece is movable relative to the cylinder head in a direction substantially perpendicular to the axial direction. The buffer piece is formed with a through-hole through which the drive shaft extends.

Abstract: An air path arrangement for a pneumatic nail gun includes cylinder received in a barrel and a handle is connected to the barrel. A space is defined between the cylinder and an inner periphery of the barrel. A connection path communicates between the interior and a first partition of the chamber. A side path communicates between a space between the cylinder and an inner periphery of the barrel, and a second partition of the chamber. The first partition communicates with an inlet and an outlet in the handle. A movable member, a guide member, a valve, an axle and a base are received in the chamber. The guide member is located between the first and second partitions. The guide member has apertures which communicates with the first and second partitions so that the movable member and the valve are movably received in the first partition and the second partition.

Abstract: A pneumatic tool has a body, a handle, a clip, a biasing member and a cap. The handle is formed on and extends from the body and has a free end and an annular shank extending from the free end. The clip is rotatably and slidably mounted on the shank and has a collar and a clip tab. The collar is rotatably and slidably mounted around the annular shank and has multiple teeth formed on a side of the collar facing away from the body. The clip tab extends from the collar. The biasing member is mounted around the annular shank and has two ends abutting respectively with the handle and the collar. The cap is detachably attached to the shank and has multiple recesses respectively corresponding to and engaging with the teeth on the collar.

Abstract: An insert seal for an adapter connectable to a fuel cell which is engageable upon a combustion tool fuel metering valve, the fuel cell having a stem and the metering valve having a nipple, includes a body defining a central passageway and having a first end sealable on the stem and a second end sealable on the nipple, a flange portion affixed to the second end, being in fluid communication with the passageway and having a larger diameter than the body. The fuel cell adapter is configured for connection to the fuel cell and is engageable upon the combustion tool fuel metering valve, has an adapter body with a base configured for engagement upon the fuel cell and a nozzle connected to the base, the adapter body defining a chamber configured for accommodating the stem and the nipple, the insert seal being accommodated in the chamber.

Abstract: The invention relates to a pneumatic tool drive system, comprising a portable pressure source, a valve assembly, a regulating assembly, and a pneumatic assembly. The pneumatic assembly can be any conventional pneumatic device. The pneumatic assembly may be a pneumatic tool, such as, but not limited to, a nail gun, a power sprayer, a torque wrench, and the like. The pneumatic tool drive system gives the operator the freedom to move about his work space free of cumbersome hoses and compressors.

Abstract: A fastening tool with a housing assembly, a magazine assembly and a deflectable finger. The housing assembly includes a nosepiece. The magazine assembly, which is coupled to the housing assembly, is configured hold a plurality of fasteners and sequentially feed the fasteners into the nosepiece. The deflectable finger is coupled to the housing assembly and extends outwardly there from.

Abstract: A fastener driving device includes a housing containing a chamber for storing compressed air a cylinder structure disposed within the housing, a piston movably disposed within the cylinder, a driver connected to the piston, a main valve cooperable with the cylinder structure and movable between an open position and a closed position. The main valve in its open position allows air to move the piston through a drive stroke. The fastener driving device also includes a trigger valve operable between first and second positions. The trigger valve in its first position communicates air pressure from the chamber to the main valve through a signal passageway so as to retain the main valve in a closed position. The trigger valve in its second position allows the air to be exhausted to atmosphere through the signal passageway to permit the main valve to open. The cylinder and the signal passageway comprise an integrally molded structure.

Abstract: A driver blade for use in a combustion-powered fastener-driving tool includes an elongate tubular body having a combustion end and a driving end, the combustion end being configured for attachment to a piston, and the driving end having a substantially solid cross-section. The tubular body is in fluid communication with a tool combustion chamber.

Abstract: A combustion-powered fastener-driving tool includes a combustion-powered power source including a cylinder defining a path for a reciprocating piston and an attached driver blade, the piston reciprocating between a pre-firing position achieved prior to combustion and a bottom out position. Upon combustion in the power source, the cylinder includes at least one exhaust valve configured for releasing combustion gases from the cylinder. The at least one exhaust valve is dimensioned so that sufficient gas is released to reduce post-combustion pressure in the cylinder to approximately one atmosphere in the time available for the piston to travel past the at least one exhaust valve and return to the at least one exhaust valve.

Abstract: A pneumatic fastening tool assembly that employs an engine having a sliding sleeve arrangement to control the supply of air to and exhaust from the pneumatic engine. The sliding sleeve arrangement eliminates the need for a conventional main valve and thereby reduces the overall weight and length of the pneumatic fastening tool relative to those tools that employ a conventional engine configuration.

Abstract: The guide rods 25, 26 extending straight along the discharge port 17 are fixed to the contact member 24, and this contact member 24 is retained slidably on the nose 16 via the guide rods 25, 26. The nose extension 23 is formed at the free end of the discharge port 17 so as to be integral with the nose 16 so that the nose extension covers the outer circumferential surface of the discharge port 17. The contact member 24 is held in the annular space formed between the nose extension 23 and discharge port 17, the contact member 24 being provided so as to project from free end of the nose extension.

Abstract: A nailing gun with a dust-blowing device, the dust-blowing device is attached to a side of the nailing gun and has an actuating device operated by pushing forward to actuate the dust-blowing device. Therefore, operation of the nailing gun with the dust-blowing device is in accordance with ergonomic to facilitate the use of the nailing gun.

Abstract: A combustion-powered fastener-driving tool includes a combustion-powered power source, a workpiece contact element reciprocable relative to the power source between a rest position and a firing position, a control system operationally associated with the power source, a trigger connected to the control system providing operator interface with the control system. The control system is configured so that an operator may select between a sequential firing mode in which the trigger must be released between firings, and a repetitive cycle mode in which the trigger is continually depressed between firings. The trigger is connected to the control system so that at least one of the frequency and duration of pulling of the trigger converts the operating mode from the sequential mode to the repetitive cycle mode.

Abstract: A nail gun includes a shell, a hammering device for firing nails, an energizing device for providing energy to the hammering device, an actuating device for actuating the energizing device and a lever for disabling the actuating device after a nail is fired. The actuating device can be reset in order to allow the firing of one more nail.

Abstract: A trigger selector is used with a nail gun. The nail gun has a body and a safety. The body has a casing, a handgrip, an air passage and a valve. The trigger selector has a trigger, a selector sleeve, an enabling lever and a pin. The trigger has a recess and two slots. The selector sleeve is mounted slidably on the trigger and has two mounting holes corresponding to the slots in the trigger. The enabling lever is mounted pivotally in the recess, extends from the open top of the trigger, selectively aligns with the safety and aligns with the valve. The nail gun is adjusted a single shot or a semiautomatic mode by sliding the selector sleeve relative to the trigger.

Abstract: A housing for a power tool includes a primary handle configured for accommodating a primary hand used to control the operation of the tool, the handle having a first end closer to a power source of the tool, and a second end distal of the power source, a secondary handle configured for accommodating a secondary hand, being associated with the distal end and defining a distal extremity of the tool offsetting the power source.