Abstract: A fuel cell is provided and is constructed and arranged for use with a combustion tool including a cylinder head frame. The fuel cell includes an outer shell having a closed lower end and an open upper end, and a closure crimped over the upper end and defining an opening for accommodating a reciprocating valve stem. An adapter frictionally engages the closure and includes a flange configured for suspending the fuel cell in the fuel cell chamber.

Abstract: A driving module for driving magazined fixing elements into workpieces includes an assembly support for a driving assembly. The driving assembly has a driver drive which acts with a driving force via a driver punch on the fixing element to be driven in each case. The driving assembly can be pressed onto the respective workpiece by a drive wedge, which extends in a wedge plane and acts on the driving assembly in order to press the driving assembly onto the respective workpiece. The driving assembly has a driver plane which is oriented parallel to the wedge plane and in which the line of force action of the driving force extends. The wedge plane is offset from the driver plane by an offset distance.

Abstract: The pneumatic nailer has an elbowed feeder magazine for feeding fasteners one at a time. The magazine has an elongated inner frame segment fixedly mounted to the nailer main frame, an elongated outer frame segment operatively connected in non-coaxial fashion to the inner frame segment. Each of the inner and outer frame segments has a corresponding first and second channels, for slidingly retaining fasteners in coextensive slidethrough fashion. The fasteners are movable under gravity forces from a fastener intake to a fastener discharge outlet opposite the fastener intake. A fastener pusher device may be provided with a pusher retention device having an operative mode, active with a large storage load of fasteners into the magazine, and an inoperative mode, triggered when the load of magazine fasteners decreases below a threshold value.

Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

Abstract: The present invention provides an apparatus for shooting a nail comprising a barrel, a barrel support, a centering sleeve, a link frame, a cylinder, a piston rod and an outer housing, wherein the barrel is mounted removably in the barrel support. As desired, the barrel may be removed conveniently to facilitate the replacement of the barrel for different application or removal of the nail blocked in the apparatus for shooting a nail. Furthermore, at least two longitudinally elongated slots may be formed in the centering sleeve and penetrate through the wall of the centering sleeve, the steel balls received in the slots are held in the slots via a snap ring so as to embrace the rod body of the piston rod. Therefore, it is ensured that the piston rod is concentric with the barrel when hitting the nail and the hit force of the piston rod will not lose.

Abstract: A driving piston 7 is provided so as to be slidable in an up-down direction within a driving cylinder 6 disposed within a body 1. A movable sleeve is fitted on the outer peripheral side of the driving cylinder 6 on the cylinder so as to be movable in the up-down direction. When the movable sleeve 11 is moved upward to abut against a cylinder head 10 provided in the upper direction, a sealed combustion chamber 5 is formed. When combustible mixed gas is explosively burnt within the combustion chamber 5, high-pressure combustion gas acts on the driving piston 7 to thereby impulsively drive the piston, whereby a fastener is driven out by a driver 8 coupled on the lower surface side of the driving piston 7. Elastic members 15 are disposed between the movable sleeve 11 and the cylinder head 10. The elastic members 15 bias the movable sleeve 11 downward.

Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

Abstract: A pneumatic nailer includes a tool housing enclosing a cylinder with a reciprocating drive piston, and having a trigger and a workpiece contact element both connected to a trigger valve. A valve cap is mounted to the housing and includes a cycle valve and a dump valve, each valve reciprocating in a respective valve chamber. The dump valve controls drive pressure for the drive piston, the cycle valve controls the return of the dump valve to allow piston return. The valve cap and the valves are constructed and arranged such that the piston is returned to a start position independent of positions of the trigger or the workpiece contact element.

Abstract: An object of the application is to improve power transmission to a movable element in a driving tool. The driving tool for driving a material to be driven into a workpiece includes rotationally driven first and second rotating elements, the movable element that can move in a direction that strikes the material to be driven, V-shaped first and second contact surfaces formed on the movable element, and a pressing member that applies a force to the movable element such that the first and second contact surfaces are pressed against the first and second rotating elements. The driving tool further includes a first motor for driving the first rotating element and a second motor for driving the second rotating element.

Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

Abstract: A driving tool having first and second linear motors, a head assembly, a nosepiece and a driver. The first linear motor forms an air compressor and includes a scotch yoke mechanism for translating a first piston in a first cylinder. The scotch yoke mechanism includes a crank arm, a crank arm roller, which is coupled to the crank arm, and a connecting rod having a roller slot into which the crank arm roller is received. At least a portion of the roller slot is configured to vary an output rate at which the connecting rod translates along a translation axis relative to an input rate at which the crank arm roller moves in a direction that is parallel to the translation axis.

Abstract: In a fastener-driving tool equipped with a fastener magazine, and a power source including a reciprocating driver blade for driving fasteners obtained from the magazine into a workpiece, and a reciprocating valve sleeve actuated by a cage, a nosepiece is provided, including a nosepiece body configured for attachment at one end to the fastener tool and defining a fastener channel constructed and arranged for receiving the driver blade and the fasteners sequentially fed by the magazine, the fastener channel having a fastener outlet. A unitary actuator reciprocates relative to the nosepiece body, has a first end contacting the workpiece, and a second end engaging the cage.

Abstract: A drive tool includes an ejector, a press member, a press detection switch, an operation member, an operation detection switch, a control unit, an operation state detector, and a report unit. The control unit makes the ejector carry out ejection of a fastening tool when the press detection switch and the operation detection switch are turned on. The operation state detector detects a case where the drive tool comes into one of a plurality of kinds of preset operation states which include at least one operation state other than a state of a battery. Report patterns different for each of the plurality of kinds of operation states are set in the report unit. When one of the operation states is detected by the operation state detector, the report unit reports the detection using the report pattern set corresponding to the detected operation state.

Abstract: An improved pneumatic device includes a body having a hollow cavity, defining an X axis and having a first end and a second end. The body includes a movable cylinder, a nail-firing piston rod and at least one exhaust hole. The movable cylinder and the nail-firing piston rod reciprocate along the X axis in the body by performing a forward stroke to the second end, and a return stroke back to the first end. The movable cylinder presents an open status when completing the forward stroke and presents a closed status when completing the return stroke. The movable cylinder has an exhaust hole and an exhaust valve disposed at an outer periphery thereof. When the nail-firing piston rod has not completed the return stroke yet and the cylinder is in the closed status, an exhaust channel is thereby formed to facilitate exhausting of air.

Abstract: A fuel gas has a gas including at least 40 weight % or more of 1-butene and propane, or at least 56 weight % or more of 1-butene and propylene. A combustion type power tool is driven by the fuel gas. A compressed gas container for a combustion type power tool has an inner side vessel filled with the fuel gas. When the fuel gas includes propane, 1-butene may be equal to or higher than 59 weight % and equal to or lower than 95 weight %. When the fuel gas includes propylene, the 1-butene may be equal to or higher than 70 weight % and equal to or lower than 96 weight %.

Abstract: A pistol and/or clam shell style power tool housing. With respect to the pistol style housing, the tool housing includes a body defining a head portion with a handle portion depending therefrom to define a forward and/or a rear junction. A metal reinforcing member is configured to span along an inside surface of the body from the head portion to the handle portion such that the reinforcing member bridges either the forward or rear junction. In at least one embodiment, the reinforcing member is provided along each lateral side of the tool body. With respect to the clam shell style housing, with two opposed body halves interconnected to define the tool housing body, at least one continuous reinforcing ring is positioned about both halves of the tool housing body to prevent splitting between the two halves.

Abstract: A combustion-powered fastener-driving tool includes a combustion-powered power source including a cylinder head and a combustion chamber defined by the cylinder head, a valve sleeve and an upper surface of a reciprocating piston, the valve sleeve reciprocable relative to the cylinder head between a rest position and a pre-firing position. The valve sleeve has a range of positions between a first sealing position in which the combustion chamber is closed, and said pre-firing position in which the valve sleeve is prevented from further movement. A lockout device is associated with the power source and has an actuated position configured for preventing the reciprocation of the valve sleeve beyond the first sealed position to open the combustion chamber, but permitting movement of the valve sleeve from the first sealed position to the pre-firing position until the piston returns to a piston pre-firing position post combustion.

Abstract: A nail-pushing rod restoring apparatus for a pneumatic nail gun includes a return air passage connected between a high-pressure main air chamber inside a gun body and a bottom cylinder chamber of a cylinder. A magnetic valve is disposed inside the gun body above the cylinder and located on the return air passage. An end of the magnetic valve is exposed inside a top cylinder chamber of the cylinder. The magnetic valve is lead by the piston to close the return air passage when the piston moves to the top of the cylinder. The magnetic valve is driven by the high-pressure air inside the top cylinder chamber to open the return air passage when the piston moves downward, so as to lead the high-pressure air inside the main air chamber to the bottom cylinder chamber to restore a nail-pushing rod after nail-pushing.

Abstract: A trigger valve controlling device for a pneumatic nail gun includes a main air passageway, a valve sleeve and a main air valve opening. The valve sleeve separates the main air passageway into a front passageway, a middle chamber and a rear passageway. After hitting nails, a high pressure air in the trigger valve controlling device is capable of driving a hitting bar of the pneumatic nail gun to move upward to reset.

Abstract: A pneumatic tool includes: a body; a pneumatic driving unit disposed in the body for performing pneumatically a fastener-driving operation; a trigger valve unit disposed on the body and adapted for controlling flow of air into the pneumatic driving unit and out of the body; and a passage unit formed in the body and including an air storing chamber adapted for guiding flow of air into the trigger valve unit, a bidirectional passage for intercommunicating the trigger valve unit and the pneumatic driving unit, an exhaust passage communicated with the trigger valve unit, and an expansion passage adapted for intercommunicating the exhaust passage and the atmosphere and extending along a peripheral portion of the body as to permit flow of air from the exhaust passage into the atmosphere therethrough.

Abstract: Vibration or the impact of a tool main body may be blocked by the support of a battery holder via elastic materials in a floating state at the rear end portion side in a feed direction of a driven-members-housing magazine and by the attachment of a battery pack to this battery holder.

Abstract: An improved apparatus for nailing or stapling flooring pneumatically, wherein a pneumatic stapler or nailer is provided with a dual trigger single sequential actuation system by which an operator can reach either trigger with his index finger. In one embodiment, the triggers being interconnected. In a second embodiment, each trigger actuates a valve that communicates with a pneumatic piston which drives the staple.

Abstract: To provide a compact portable fastening tool which can be easily pushed at its handle portion onto a punched side, even in case a magazine is attached at an inclination with respect to the horizon, so that it can be easily used even in a narrow place. An electric fastening tool 1 comprises: a housing 2 having a handle portion 2B formed to extend from a trunk portion 2A; an ejection unit attached to the lower portion of the housing 2; a magazine 5 attached to the ejection unit; a motor housed in the housing 2; a battery pack 3 for driving the motor; a flywheel rotationally driven by the motor; a follower shaft selectively rotated by the kinetic energy of the flywheel; and a plunger adapted to be linearly moved in the housing 2 by the rotation of the follower shaft thereby to drive the nail fed into the ejection unit.

Abstract: A shooting mode switch control mechanism used in a nail gun is disclosed to include a trigger, a lever function stop member pivotally mounted in the trigger, a spring member stopped against the stop member and a switch pivotally mounted in the trigger. The spring member and the switch are arranged at two sides relative to the pivoted area of the stop member so that when the switch is in the single-shooting position and the trigger is released, the second end portion of the stop member is forced by the spring member into the moving path of the safety bar and pushable by the safety bar for enabling the stop member to activate the air-valve switch once each time the trigger is pressed. When the switch is in the continuous-shooting position, the first end portion of the stop member is stopped against the switch for enabling the second end portion of the stop member to be continuously pushed by the safety bar to activate the air-valve switch continuously.

Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

Abstract: A fastener driving apparatus includes a power source, a control circuit, a motor, a first cylinder, a first piston, a linear motion converter, a second cylinder, a second piston, an anvil, a retention element retaining a component of the apparatus, and at least one sensor. During a compression stroke, the first piston compresses gas in a first cylinder to a predetermined pressure. Compressed gas is communicated to the second cylinder and the retention force of the retention element is overcome, to release the retained component of the apparatus, thereby causing the second piston to move linearly and enabling the anvil to drive the fastener into the workpiece. During a return stroke of the first piston, a vacuum created in the first cylinder is communicated to the second cylinder, causing the second piston and the anvil to retract to their initial positions.

Abstract: A safety nailing device of the present invention includes a main body, an actuator, a striking plate and a disengaging means. The main body defines a chamber therein, and an opening is defined on a bottom surface of the main body to communicate with the chamber. The actuator is disposed on the main body and has a controlling end. The striking plate is disposed in the chamber and is movable between a safety position, a starting position and a striking position. The striking plate has a protrusive end and a controlling groove. The protrusive end selectively protrudes out of the chamber from the opening, and the controlling groove is selectively engaged with the controlling end. The disengaging means is for moving the striking plate to the safety position to disengage the controlling end from the controlling groove, so that the travel of the actuator will not lift the striking plate.

Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

Abstract: An improved pneumatic device includes a body having a hollow cavity, defining an X axis and having a first end and a second end. The body includes a movable cylinder, a nail-firing piston rod and at least one exhaust hole. The movable cylinder and the nail-firing piston rod reciprocate along the X axis in the body by performing a forward stroke to the second end, and a return stroke back to the first end. The movable cylinder presents an open status when completing the forward stroke and presents a closed status when completing the return stroke. The movable cylinder has an exhaust hole and an exhaust valve disposed at an outer periphery thereof. When the nail-firing piston rod has not completed the return stroke yet and the cylinder is in the closed status, an exhaust channel is thereby formed to facilitate exhausting of air.

Abstract: An apparatus for setting fastening elements (5) has a feed drive (21), by means of which the connecting elements (5) can be fed to an installation position, and a setting device which has a setting tool and by means of which a fastening element (5) arranged in the installation position can be ejected to come into engagement with a support part. Also present is a drive mechanism, which is provided with a drive motor that has a rotatable drive shaft (13) and is coupled via a transmission arrangement (14, 15, 16, 17, 18) to the feed drive (21) and the setting device (30), and with a control arrangement for setting the direction of rotation of the drive shaft (13). In one direction of rotation of the drive shaft (13), the transmission arrangement (14, 15, 16, 17, 18) couples the drive motor (12) to the feed drive (21), and in the other direction of rotation of the drive shaft (13), it couples the drive motor (12) to the setting device. The apparatus is therefore relatively easy to handle.

Abstract: An fastener driving apparatus has an actuator linked to a work contact element so as to move a trigger plate when the work contact element retracts. A button is movable back and forth along a transverse axis when depressed from its opposite ends. The actuator has a bump mode surface and a sequential mode surface at different locations along the axis, and is moveable transversely back and forth between a bump mode arrangement in which the bump mode surface can move the trigger plate and a sequential mode arrangement in which the sequential mode surface can move the trigger plate. The button is linked to the actuator so as to move the actuator to the bump mode arrangement when depressed from one end, and to move the actuator to the sequential mode arrangement when depressed from the opposite end.

Abstract: A method for loading coil collated fasteners into a fastening tool. The method includes providing internal access to the fastening tool by moving a door structure and a portion of a canister to load the coil collated fasteners.

Abstract: A combustion nailer includes a tool housing, a combustion source disposed at least partially in the housing and including a valve sleeve reciprocating relative to a cylinder head along a tool axis between a rest position and a pre-firing position, a fuel cell chamber in the housing in operational proximity to the combustion source and dimensioned for accommodating a fuel cell, at least one pivot point associated with the fuel cell chamber transverse to the tool axis for facilitating movement of the fuel cell between a non-activated position and an activated position, and at least one actuator pivotable about the pivot point and engaging the valve sleeve at a point closer to the tool axis than to the fuel cell chamber such that movement of the valve sleeve from the rest position to the pre-firing position causes movement of the fuel cell from the non-activated position to the activated position.

Abstract: A device for impacting a fastener in one embodiment includes a housing with an upper housing portion, a middle housing portion, and a side housing portion extending between the upper housing portion and the middle housing portion, a drive cylinder configured to vent within the housing, an air passage extending through the housing and including a mouth at the upper housing portion, and a strike plate extending over the upper housing portion and including a top portion positioned apart from the upper housing portion, and a first side extension extending downwardly from the top portion along the side housing portion to a location above and spaced apart from an outwardly extending first surface of the middle housing portion.

Abstract: A compressible fluid powered device includes a dose chamber. An inlet supplies pressurised fluid to the dose chamber. An outlet for releases pressurised fluid from the dose chamber. A moveable divider divides the dose chamber into a primary space and a secondary space, movement of the divider expanding one space at the expense of the other. At least one flow pathway from one space to the other, which collectively allow gas to flow in both directions past the divider and pressure to equalise across the divider, the flow pathway being much more limited than the outlet.

Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

Abstract: A nail gun having a safe firing mechanism is composed of a main body, a nail-driving member, a safety member, and a linkage. The main body includes a nail passage for receiving nails and a nail chamber for receiving a nail ready to be fired by the nail-driving member. The nails include an initial nail, a final nail, and a plurality of standby nails located between the initial and final nails. The linkage includes a contact portion and a stopping end linking up with the contact portion. The contact portion is stopped against the standby nail. The stopping end is stopped against the safety member. When the contact portion is not stopped against the standby nail, the stopping end is located at where the safety member is stopped. When the contact portion is stopped against the standby nail, the stopping end shifts to where the safety member is not stopped.

Abstract: The nailing machine (1) comprises an air passage (510) allowing communication between a cylinder (200) and a return air chamber (500) in which compressed air for returning a piston (300) to the initial position is accumulated. The air passage (510) is provided with a control valve (520) controlling entry of compressed air into the return air chamber (500) from the cylinder (200). The control valve (520) opens the air passage 510 and allows entry of compressed air into the return air chamber (500) in the case wherein the nailed object produces a small reaction force upon driving the nail, namely when the upward moving distance of the body (100) relative to the push lever (700) is smaller than a predetermined distance. The compressed air that has entered the return air chamber (500) further enters a below-the-piston chamber and serves as air damper, reducing excess energy absorbed by a piston bumper (360).

Abstract: A nose casting assembly for a pneumatic fastener includes a body having a driver channel formed therein for receiving a driver blade. The body includes a first end having an aperture for allowing passage of a driver blade into the channel. The body further includes a second end configured for allowing a fastener to be expelled from the nose casting assembly. The body further includes an exterior surface and an interior surface, the interior surface having a loading aperture formed therein for allowing passage of a fastener into the driver channel.

Abstract: A pneumatic nailer includes a main compressed air reservoir, a bottom cylinder chamber, a nail driving rod, an air compressor, a safety rod, and a trigger valve. A resetting and driving mechanism includes a main passage, a first valve member, a startup switch, a power off switch, and an auxiliary passage. The main passage is connected between the main compresses air reservoir and the bottom cylinder chamber. The first valve member is slidably disposed in the main passage and includes an inner end portion for driving the compressed air and an outer end portion for pushing the safety rod. The startup switch is capable of starting the air compressor when the safety rod moves to trigger the startup switch. The power off switch can shut down the air compressor. The auxiliary passage communicates with the main compressed air reservoir and extends to a proximal side of the power off switch.

Abstract: A combustion-engined setting tool (10) for driving fastening elements in a workpiece includes a combustion chamber (11), a drive piston (15) displaceable in a piston guide (17) and driven by expanding gases produced in the combustion chamber (11), and a device for returning the drive piston (15) in its initial position as a result of pressure difference between chambers formed on opposite axial sides of the piston head (115), and including a pump (20).

Abstract: A latch assembly for a staple gun has a front cover, a locking element, a pushing element and a staple driver. The front cover has a connecting bolt. The locking element is mounted on the front cover and has two cams, a torsion spring and a locking block. The cams and the torsion spring are mounted around the connecting bolt. The pushing element is mounted in the front cover and has a pushing lever and a pressing pin. The pushing lever abuts the cams. The pressing pin extends out of the front cover. The staple driver is mounted in the front cover and has a locking hole, a through hole and an elastic panel. The locking hole is formed through the staple driver and engages the locking block. The latch assembly can hold a handle of the staple gun conveniently and safely when the staple gun is not being used.

Abstract: The purpose of this invention is to provide a switching mechanism for switching stapling modes of a stapler, which mainly comprises a trigger, a supporting member, a slide member, a spring, a hooking member and a torsion spring. When the safety device of the stapler is pushed, the slide member is pushed to open the air valve, and if the trigger is further pressed at this particular moment, the stapling counterforce will make the slide member escape the pressure from the safety device so as to finish a single stapling process. When the trigger is pressed first and then the safety device is pushed, the slide member is pushed to open the air valve, which makes the stapling process to continuous until the trigger is released. In other words, the above process makes a continuous stapling process.

Abstract: A switch mechanism for a stapler includes a trigger, a pivotable member, and a swing member, which is pivotably connected to the trigger by two pins. The pivotable member has a first protrusion extending from a top of the pivotable member. The pivotable member is received in a recess of the slide member and a second protrusion extends from an inner top end thereof A spring is connected between the first and second protrusions so that the slide member is movable relative to the pivotable member. The swing member includes a first curved part and a second curved part which is located at a side of the pivotable member. The curved part of the swing member is inserted into a hole of the slide member when pulling the trigger, and the slide member is moved downward to change the relative position between the slide member and the valve of the stapler.

Abstract: When a push lever is brought in contact with a member to be driven, a second trigger stopper slides and a first trigger stopper slides via a second spring. After a third trigger stopper turns ON a push switch 18 according to sliding of the first trigger stopper, the first trigger stopper further slides and a projecting portion and a projecting portion of a trigger are disengaged from each other, so that the trigger is made rotatable. A trigger switch is turned ON according to rotation of the trigger.

Abstract: A combustion-operated setting tool (10) for driving in fastening elements, includes a combustion chamber (15), a ventilator (16), and a motor (17) for driving the ventilator (16). The motor (17) is mounted in a receptacle (20) of a motor-supporting member (21) and is supported at least at one of its axial ends (24, 25) by an annular damping element (30) at a wall portion (22, 23) defining the receptacle (20), with an annular recess (33) arranged at the circumference of the annular damping element (30).

Abstract: An air duster duct is formed to branch off at an intermediate portion along the length of an air duct which connects a compressed air supply source with a pneumatic tool. A valve mechanism having a selector valve and an operating device is provided at the branch portion. The sector valve can shift to a first position where the selector valve opens an upstream side duct which communicates with the air supply source to a downstream side duct which communicates with a nailing machine and shuts the upstream side duct relative to the air duster branch duct and a second position where the selector valve shuts the upstream side duct relative to the down stream side duct and opens the upstream side duct to the branch duct. The selector valve is operated from the outside by the operating device.

Abstract: A nail gun has a free end 19a and central potion of a trigger arm 19 positioned within a trigger 11, on an upper end 12a of a safety portion 12 and at a plunger 17, respectively. When the trigger 11 is pivoted on its pivot end 16, pivoting movement of the trigger 11 moves a pivot end 18 of the trigger arm 19 to press the central portion of the trigger arm 19 into contact with the plunger 17 and, with the plunger 17 serving as a fulcrum, to press the free end 19a downward against the upper end 12a of the safety portion 12. If downward movement of the safety portion 12 is obstructed when the trigger 11 is pivoted, the upper end 12a contacted by the free end 19a of the trigger arm 19 serves as a fulcrum around which the trigger arm 19 pivots with movement of the trigger 11, whereupon the central portion of the trigger arm 19 presses the plunger 17 inward so that an activation switch 10 activates a blade 7 to eject a nail through a nose piece 5.