Abstract: A surgical clip applier is provided including a clip pusher bar having a flexible tab and a camming plate configured to effectuate closure of the pair of jaws. The camming plate includes a lost motion portion and the flexible tab is configured to engage the lost motion portion during an initial movement of the clip pusher bar to cause the camming plate to move with the clip pusher bar. The flexible tab is configured to disengage from the lost motion portion during a subsequent movement of the clip pusher bar to allow the clip pusher bar to move relative to the camming plate.

Abstract: An improved driving tool is provided which can prevent malfunction in detection of the number of fasteners remaining in a magazine. A representative driving tool includes a driving member for driving fasteners and a magazine for storing the fasteners. The driving tool further includes a driving tool actuation control member that can be switched between an actuating position and a deactuating position, and a retaining member that can be switched between a retaining position and a releasing position. The retaining member is switched from the retaining position to the releasing position according to the number of remaining fasteners in the magazine and the driving tool actuation control member is switched from the actuating position to the deactuating position when the retaining member is switched to the releasing position.

Abstract: A cordless nailer is provided having a magazine assembly with improved features. 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: In accordance with an embodiment of the present invention, a fastening device such as, for example, a forward acting stapler, is provided that includes a manually operable latch in order to store the built up potential energy that results from depressing the handle of the fastening device. Upon actuation of the latch, the plunger within the fastening device is released, thereby converting the stored energy of an internal compression spring into kinetic energy and ejecting a fastener (such as, for example, staples, nails or other types of fasteners) from the staple chamber to fasten an object.

Abstract: This invention provides a safety apparatus for a stapler, the safety apparatus comprises a first plate having a hook and a first opening, wherein when the first plate is in a first position, the hook engages a driving blade for preventing the same from driving out a staple, a second plate substantially parallel to the first plate and having a second opening, a pin having a first and second end, and a first spring urging the pin downward with the first end of the pin protruding from a bottom of a housing body of the stapler and the second end of the pin below the second plate, wherein when the housing body is pressed against an object, the first end of the pin is pushed into the housing body, and the second end of the pin is inserted into both the first and second openings.

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: In accordance with an embodiment of the present invention, a fastening device such as, for example, a forward acting stapler, is provided that includes a manually operable latch in order to store the built up potential energy that results from depressing the handle of the fastening device. Upon actuation of the latch, the plunger within the fastening device is released, thereby converting the stored energy of an internal compression spring into kinetic energy and ejecting a fastener (such as, for example, staples, nails or other types of fasteners) from the staple chamber to fasten an object.

Abstract: A blocking device for a nail gun includes a push member disposed on a nail pusher in a nail cartridge of the nail gun for moving toward a nail groove base with the nail pusher, a brake member movably installed on the nail pusher for moving toward the nail groove base with the nail pusher, and a rotational fastener pivotably installed on the nail groove base on a moving path of the push member and the brake member. The fastener can be touched to rotate by the push member when there are a small number of remaining nails in the nail cartridge so as to prevent the brake member moving to a position where it blocks an upward movement of the safety bar, and can be released by the push member and rotate back to an original position when there is no remaining nail in the nail cartridge so as to release the brake member to move to a position where it blocks an upward movement of the safety bar and thereby a nail shooting action of the nail gun. The accuracy of the nail shooting blocking is improved.

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: A magazine in a fastener driving tool includes a magazine body, a pusher, a biasing device and a pusher holding device. The magazine body defines a fastener receiving space for storing a plurality of fasteners therein. The pusher is mounted to the magazine body and is movable in a fastener feeding direction toward a fastener driving channel defined in a tool body of the fastener driving tool. The biasing device biases the pusher in the fastener feeding direction. The pusher holding device can hold the pusher at a midway position within a movable range of the pusher in the fastener feeding direction. The pusher holding device may include no insertion hole or only one insertion hole formed in the magazine body.

Abstract: A braking and driving mechanism includes a guide plate, a driving rod, a magazine, and a pressing rod. The guide plate includes a longitudinal nail groove extending along a direction same to a nail driving direction of the nail gun. The longitudinal nail groove is communicated with a nail driving groove. The driving rod is slidably assembled on an end side of the guide plate along the nail driving direction. A stopping portion is formed on an end side of the driving rod. The magazine is transversely disposed on an end wall of the guide plate. An inner portion of the magazine defines a longitudinal guide groove for supplying nails. The longitudinal guide groove receives a plurality of nails therein and is communicated with the longitudinal nail groove. More than one nail pushing pieces capable of providing an elastic force are arranged in the longitudinal guide groove.

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: 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: In a braking mechanism for a nail gun, the nail gun includes a nail driving track, a magazine and an inner trigger for controlling a shooting action of the nail gun. The braking mechanism includes a safety rod, a sliding member, a swing stem, and a guide plate. The sliding member is slidably received in the magazine. The sliding member is configured for pushing nails received in the magazine into the nail driving track. The swing stem is resiliently and pivotally mounted on the sliding member. The swing stem includes a braking portion. A straight path is defined between the safety rod and the barking portion. A protrusion is formed on the braking portion. The guide plate is disposed at an end of the straight path. The guide plate is configured for guiding the protrusion such that the braking portion moves away from the straight path.

Abstract: A hand-operated stapler comprises an arm, a sliding belt and a blocking member, wherein the arm comprises a front end which acts as an effort, a rear end which acts as a fulcrum, and a load portion in between the front end and the rear end of the arm; and the rear end of the blocking member is connected to a front end of the sliding belt. At a non-stapling default position a front end of the blocking member is biased to be disposed above the stopper and blocks the upper clincher member from engaging with the lower clincher member. At a stapling position the rear end of the sliding belt is pulled upward, thereby pulling the blocking member rearward and away from the stopper and thus allowing the upper clincher member to engage with the lower clincher member.

Abstract: A fastener driving tool is provided, including a housing substantially enclosing a power source including a reciprocating piston with a driver blade. A nosepiece is associated with the housing and is configured for receiving the driver blade and for sequentially receiving fasteners for engagement with the driver blade for driving into a workpiece. A magazine is configured for retaining a supply of the fasteners and for sequentially feeding the fasteners to the nosepiece, the magazine storing a plurality of elongate strips of the fasteners, and being configured for rotating about a longitudinal axis of the magazine for providing access of fasteners in each fastener strip to the nosepiece.

Abstract: A nailing machine includes a magazine for storing nails, an injection port, a drive mechanism, and a nail detecting lever. The nail detecting lever formed with a detecting end capable of advancing to inside of a nail containing portion is rotatably arranged between a downwardmost pusher and a pusher thereabove on one side of the magazine. An idle striking preventing arm has an upper end arranged at a vicinity of a starter, and a lower end arranged to be opposed to an end portion on a side opposed to a detecting end of the detecting lever and which is operated to start a nailing machine in cooperation with the starter. Further, the other side of the magazine is formed with a detecting end containing portion for containing the detecting end of the nail detecting lever.

Abstract: A stapler includes a body and a strike plate movably mounted to the body between a rest position and a loaded position. The strike plate is adapted to drive a staple into a target object. The strike plate may be moved from the rest position to the loaded position by a loading mechanism against the bias of a power spring, whereupon the energy stored in the power spring is applied to the strike plate to drive the staple. A stapler may include a lockout which inhibits movement of the strike plate toward the loaded position unless a work piece is beneath the stapler body.

Abstract: A staple storage cassette, comprising a staple assembly slidably installed on a cassette rail member across a pair of guide rails vertically formed parallel with each other, a feeder slidably brought into contact with the rear end part of the staple assembly, and a cassette cover member forming a passage in which staples and the feeder are inserted. A stopper is installed and a blade guide hole is formed at the front end part of the cassette cover member, and engagement recessed parts engaged with the elastically engaged claw pieces of the feeder in one direction are continuously formed in the inner surface of the cassette cover member in the longitudinal direction so that the feeder can be moved in the forward direction only.

Abstract: A stapler device and a method of stapling an article. The stapler has a striker and a spring for driving the striker to apply a staple. During the stapling cycle, the striker and spring are cocked and loaded prior to being release to apply the staple. While the stapler is in the cocked and loaded position the stapling cycle is automatically interrupted to maintain the spring and the striker in the cocked and loaded position. The stapler device may be then moved to a second location before the interruption is discontinued by an actuator. Once the stapling cycle is continued, the cocked and loaded striker and spring are released to apply a staple. The device is also selectively capable of a second mode of operation wherein the stapling cycle is not interrupted.

Abstract: A modular magazine assembly in a fastener-driving tool having a nosepiece includes a first magazine housing portion secured to the tool and at least partially defining a chamber for fasteners. An extension portion is configured for releasable attachment to the first magazine housing portion. Upon assembly of the extension portion, a resulting large capacity magazine is defined and dimensioned to accommodate at least two fastener strips.

Abstract: A magazine cover is integrally molded with a return-preventing claw part to be engaged with a fastener loaded into a guide part. The return-preventing claw part is so constructed as to include: a return preventing surface that abuts against the fastener to prevent the fastener from moving to a loading port; and a support portion that always makes the return preventing surface abut against the fastener, thereby being deformed, to support the return preventing surface such that the return preventing surface can be retracted to a position where the return preventing surface does not abut against the fastener.

Abstract: A nailer magazine includes a stationary part stably mounted on a bottom of a striking portion of a body of the nailer and a sliding part mounted to the stationary part and slideable along the stationary part in a longitudinal direction. A feeding device is mounted between the stationary part and the sliding part for pushing staples. A retraction device is mounted inside the stationary part. The retraction device moves the feeding device to a retracted position when detaching the sliding part from the stationary part and in a forward position for stably holding the staples when the sliding part is mounted to the stationary part and contacts with a valve mounted inside a bottom portion of the body of the nailer.

Abstract: A fastener driving device is disclosed. The device includes a fastener depletion sensing system that is constructed and arranged to allow normal operation of a power system contained within the device so long as a supply of fasteners provided by a magazine assembly is such that more than a predetermined number of fasteners are in a feed track and/or a drive track within the device. The fastener depletion sensing system is operable when the predetermined number of fasteners in the feed and/or the drive track is reached to provide a tactile indication to the user that the predetermined number of fasteners has been reached, and permitting the user to either cease further operation following the indication or complete the operation following the indication.

Abstract: A desktop stapler includes an automatic opening staple track whereby when the stapler is opened by pivoting the body about the base, the track is de-latched by ribs of the base, and the track slides out from a chamber within the body. The stapler includes a track alignment system that holds the front of the body precisely over the anvil by use of forward and rear torque arm contact areas between the base and track. The stapler also features a striker bottom edge that is shaped to follow the curved shape of the anvil so that the striker may enter the anvil recess without impacting the anvil. A staple chamber in the stapler has staple exit ribs that allow only one staple at a time to be ejected from the staple chamber.

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: A desktop stapler uses a spring to store energy to install staples by impact blow. The force required to fasten papers together is reduced. A very compact mechanism is used, including a dual coil power spring with a nested lever. A multi function base provides a sloped front all the way to down to a desk top surface to guide paper sheets atop the base, easy access for lifting the stapler off a desk, horizontal or vertical resting positions, and integrated soft grip under-surface. The base surrounds the rear of the stapler body to provide a smooth exterior so that the device is natural to use both horizontally and vertically. A simple re-set spring provides a smooth re-set action as the handle is raised. A staple track includes enlargement features to fit a larger staple pusher spring.

Abstract: A three-dimensional (3D) array of solid-phase supports is adapted to provide parallel synthesis of a library of molecules with 3D diversity. Individual locations in the 3D array may be assigned to selected molecules in the library such that molecules may be synthesized at and retrieved from such locations. Also, the supports include aperture walls in stacked plates; the supports may be suspended within stacked plate apertures; the 3D array include discrete supports arranged in columns in one or more wells; the supports include tube inner walls or be suspended in tubes, the tubes being secured in stacked, two-dimensional (2D) frameworks; or the supports include beads contained in porous enclosures having non-porous side walls and being secured in stacked, 2D frameworks. A support transfer device enables transfer of solid-phase supports used in a 3D array.

Abstract: The present invention provides a tool for driving a fastener from a detachable magazine. The tool includes a tool housing having a proximal end and a distal end and a power source enclosed by the housing. A nosepiece is attached to the housing and has a channel and a first alignment structure. The magazine is removably attached to the tool and has a magazine housing and a shear block that is mounted to the proximal end of the magazine housing. There is a second alignment structure and a face on the shear block such that the channel and the face form a barrel when the first alignment structure is engaged with the second alignment structure and the magazine is removably attached to the tool. Upon firing of the tool, the fastener is propelled by the power source, through the barrel and into the workpiece.

Abstract: A driver attachment (12) for a collated screwstrip (13) carrying screws (16) in which a slide body (20) is slidable in a housing (18) parallel a longitudinal axis (52) about which a drive shaft (34) is rotatable. The slide body (20) receives a screwstrip (13) such that a screw feed activation mechanism coupled between the housing (18) and the slide body (20) advances successive screws (16) into a position to be driven by the drive shaft (34) with relative sliding of the slide body (20) relative the housing (18) between an extended and a retracted position. A latch system is provided to latch the slide body (20) to the housing (18) against extension towards the extended position beyond an extension limit position. With the slide body (20) and housing (18) latched together, the drive attachment (12) may be used to drive or withdraw separate screw (16) independently of the screwstrip, with or without the screwstrip (13) engaged in the slide body (20).

Abstract: A fastener driving device comprising a magazine assembly including a rearward nosepiece portion cooperable with a fixed forward nosepiece portion to define a fastener guiding portion of a fastener drive track of the device. Cooperating guide structure disposed between the magazine assembly to be moved (1) into a normal operating position in a direction to move the rearward nosepiece portion toward a forward nosepiece portion and into cooperating relation together and (2) from said normal operating position in an opposite direction into an intermediate position wherein the nosepiece sections are spaced apart and beyond into separated relation with respect to the frame structure.

Abstract: A magazine for V-nails for use in underpinning of picture frames receives a strip of V-nails secured together by heat-bonded non-adhesive synthetic plastic material through an opening of greater width than the V-nails. A pusher has a downwardly projecting tongue which is driven in the machine and has depending side walls at its forward end affording a contact point for pushing the V-nails at their center of gravity towards a pair of locating formations and the extreme forward end. A single V-nail which may be presented either point foremost or point rearmost is removed from the end of the strip in the underpinning operation, the magazine being cut away and the pusher being cut away to permit this operation. On return of the drive member, a cam firstly returns the pusher to a stop in the magazine and then lifts the magazine from its operative position to enable it to be removed or refilled.

Abstract: A fastener-driving tool comprising a nosepiece, a mechanism for driving a fastener from the nosepiece into a workpiece, and a mechanism for feeding an elongate strip of collated fasteners, such as, for example, nails having heads. An elongate track admits the strip of fasteners and guides it so that a leading fastener is positioned so as to enter the nosepiece. A pusher is movable longitudinally along the track over a range of operative positions, between a retracted position and an advanced position, and laterally between the retraced position and an inoperative position. The pusher is biased longitudinally so as to push the strip of fasteners along the track, toward the advanced position, when the pusher is disposed within the range of operative positions. The pusher is biased laterally toward the inoperative position, at which it can be releasably latched. A button is arranged to be manually depressed so as to release the pusher.

Abstract: A stapler for driving metal staples which are fed through a guide channel to an ejecting channel under the action of a pusher member moved by resilient means on a pair of walls located inside the stapler frame, on said walls there being positioned a strip of metal staples. The inner walls and one side wall of the stapler are shorter than bottom wall of guide channel, so that it is possible to make pusher member to back up until it disengages from inner walls and may be rotated substantially 90.degree. allowing the insertion of a new staples strip once the previous one has been used up.

Abstract: The present invention relates to a stapling machine which comprises: a stapling magazine for receiving staples which has a staple discharge opening at one end and a cover, pivotally mounted to the magazine at the other end. The cover is pivotally movable between a closed position overlying the magazine and an open position. A staple support is provided within the magazine which supports the staples therein. A follower is slidably mounted on the support for urging the staples toward the discharge opening. A spring urges the follower to slide toward the staple discharge opening. A detent is provided which coacts with the follower to prevent the follower from sliding toward the discharge opening when the cover is open. An actuator for releasing the follower from the detent when the cover is pivoted toward the closed position permits the follower to slide toward the discharge opening.

Abstract: A fastener driving tool for driving a nail or anchor, the tool disposed for feeding of a cartridge strip of explosive cartridges through the tool, which upon ignition drive a plurality of magazined fasteners into a surface; the tool incorporating a handle, a tubular chamber, a piston and combustion chamber within the tubular chamber, the combustion chamber receiving a cartridge in preparation for firing, which upon ignition, propels the piston forwardly for driving of a nail, a fastener housing located forwardly of the tubular chamber, and provided for shifting of a strip of fasteners held by a magazine upwardly through the tool during repeated tool usage.

Abstract: A powder-actuated fastener-driving tool of the type disclosed in U.S. Pat. No. 4,655,380, modified to include a safety system for preventing accidental discharge of the tool, a fastener storage and feed assembly, and a simpler firing pin assembly. The safety system prevents discharge of a fastener from the tool except when the front of the tool is engaged with a workpiece and the cylinder assembly is urged rearwardly a selected distance into the housing of the tool. The fastener storage and feed assembly is adapted to store a strip of fasteners and to index the strip so as to position the leading fastener in the strip in position to be discharged from the tool. In the present invention, a unitized firing pin is provided for firing the cartridges used in the tool, instead of the plural-element firing actuator and pin assembly of the '380 tool.

Abstract: An explosive powder charge operated tool for driving nails includes a housing with a muzzle part mounted in and projecting axially outwardly from the housing. By moving the muzzle part rearwardly into the housing, the tool is in the ready-to-fire condition. A magazine is supported at one end within the muzzle part and extends generally radially outwardly from it. A slide in the magazine feeds individual nails in a nail strip into the bore in muzzle part into position to be driven by a piston located within the housing. When all of the nails in the strip have been driven from the tool, one end of the strip projects into the muzzle bore. A stop shoulder on the one end of the strip faces toward an end face on the housing and contacts the end face when the muzzle part is pressed into the housing, preventing the placement of the tool in the ready-to-fire condition.

Abstract: A magazine assembly for a fastener driving tool has an elongated fastener carrier defining a fastener feed path. The carrier is pivotably mounted about an axis parallel to the fastener feed path for movement between an operative and a refill position. In the operative position the elongated carrier is latched. A pusher advances the fasteners forward to a nosepiece assembly. Retraction of the pusher releases the latch allowing the elongated carrier to pivot about an axis parallel to the fastener feed path under the influence of a spring to the refill position. A nosepiece assembly, secured to the forward end of the tool, defines a fastener drive track for guiding fasteners driven into a workpiece. The nosepiece assembly includes a front nosepiece and a rear nosepiece pivotably connected together to allow freeing of jammed fasteners.

Abstract: A magazine for a stapler capable of storing and feeding staples of different widths. A channel having parallel sides is divided by a central staple support into two parallel spaces. One of the spaces is wide enough to confine one leg of a U-shaped staple between one side and the central staple support. This, in cooperation with the central support, properly supports the staples irrespective of their width.

Abstract: A foot-operated machine for implanting fastener elements in the ground through an erosion cover on the ground. The machine has a hollow vertical column slidably receiving a vertically reciprocable driver connected to a foot pedal on the outside of the column. A post extends up from the column and carries a top cross piece with hand grips which a person may grasp while standing substantially erect with one foot on the foot pedal. A magazine assembly feeds fastener elements individually in succession into the column to be forced down into the ground when the driver is moved down by pushing the foot pedal down. The magazine assembly has a magazine housing located on the opposite side of the column from the foot pedal, a magazine removably received in the magazine housing and slidably supporting a continuous series of the fastener elements, and a spring-biased follower which urges the fastener elements toward the column.

Abstract: A modular tool functions to drive nails or staples. The tool uses a common air motor and housing and has interchangeable magazines and handle assemblies for nails and staples, respectively. Improvements in the air motor cylinder sleeve, the firing valve, the remote valve, the trigger, the stapler follower motor and magazine, the drive station access door and latch for both stapler and nailer, the nailer magazine and follower, and other features are included.

Abstract: A magazine for a stapler capable of storing and feeding staples of different widths. A channel having parallel sides is divided by a central staple support into two parallel spaces. One of the spaces is wide enough to confine one leg of a U-shaped staple between one side and the central staple support. This, in cooperation with the central support, properly supports the staples irrespective of their width.

Abstract: A guide rail is provided along the length of the inside of a channel shaped frame which staples are loaded in. A staple pushing member, namely, a slider is provided which can move on this guide rail. One end of a tension coil spring is fitted to one side of the guide rail on the inside of the frame, the tension coil spring is brought around the front end of the guide rail and the other end of the tension coil spring is fitted to one side of the slider. The tension coil spring thus exerts a tensile force on the slider which in turn pushes the staples forward on the guide rail.

Abstract: A device for driving fastening elements, such as nails, staples and the like, includes a magazine extending transversely from a driving unit. A follower is located within the magazine for supplying fastening elements to the driving unit. For filling the magazine with fastening elements, the follower can be secured in a loading position. The follower is secured by a stop pivotally attached to the follower which engages an abutment on the magazine. The follower is released from the loading position by an actuating member movably mounted on the magazine so that it can contact an engagement part on the follower and pivot the stop out of engagement with the abutment.

Abstract: A pneumatic fastener driving tool of the hand held gun type having means for positively insuring against accidental firing when the fastener magazine is empty or detached, or when the nosepiece is not pressed against a workpiece. The means comprises a linkage train including an intermediate link carried by the magazine and movable by a first link reciprocably associated with the nosepiece to move a second link associated with the trigger assembly to render the trigger operational for firing the tool. There are locking means associated with the feeder of the fasteners for locking the intermediate link in an inoperative position when the magazine is empty of fasteners.

Abstract: A stapler wherein a staple pushing blade which can be moved up and down from and into a staple guide clearance from which a staple is forced out toward a staple bending groove, and a solenoid having a plunger for moving the staple pushing blade in the vertical direction are provided in a staple container. The staple container is provided with a slider for pressing the staplers toward the staple guide clearance, and a cover member closing an opening at the upper side of the staple container and capable of being moved forward and backward.

Abstract: An electro-magnetic tacker, which can carry out a limited number of driving strokes when its main switch is actuated, has a staple magazine pivotal between a blocking position and an operating position. In the operating position of the staple magazine, a staple blocking member blocks the front staple located in the staple magazine and, in the blocking position of the staple magazine, releases this staple for entry into a staple output channel. A coupling element connected to the staple magazine has an engagement portion which, in the switched-on position of an actuator element of the main switch, is in engagement with this. In this switched-on position, the actuator element holds the staple magazine in the operating position via the coupling element, so that the tacker can be lifted off from a workpiece, while at the same time the operating position of the staple magazine and the blocking action of the staple blocking member are maintained.

Abstract: A reloading apparatus for automatically supplying staples to a stapler. A supply of staples is retained on a plurality of rails which are fixed to a cylindrical support member which is rotatably mounted on a common frame with the stapler. The staples are sequentially fed from the rails of the reloading apparatus to the stapler by a pneumatically powered follower which moves toward the stapler on a feeding stroke and returns to the opposite side of the rails after the staples on a rail have been fed into the stapler. An indexer then rotates the cylindrical support to align another rail with the follower to feed the staples on the other rail into the stapler. A pneumatic control coordinates the stapler and the reloading apparatus.

Abstract: A reversible feeder shoe and door system for the magazine of a staple driving tool enabling set-up of the tool for right or left handed loading. The tool magazine comprises an elongated rail terminating at its forward end at the guide body of the tool. A row of staples is slidably mounted in straddling fashion on the rail. A feeder shoe, having a substantially symmetrical inverted U-shaped body, is slidably mounted on the rail in straddling fashion behind the row of staples. A resilient member constantly urges the feeder shoe forwardly so that the forwardmost staple of the row is located in the guide body drive track. The magazine may include a U-shaped elongated body in which the track is mounted. An elongated door is provided, swingable between an open position exposing the rail top and a closed position overlying the rail top to prevent inadvertent dislodgement of the staples from the rail.