Abstract: This invention provides a spring powered stapler comprising a power spring having a front and a rear end, the rear end of the power spring being limited from moving frontward, a middle section between the front and rear end of the power spring being bent down while the front and rear end of the power spring maintaining in upper positions for storing energy in the power spring, and the front end of the power spring moving rearward as a result of the middle section of the power spring being bent down, and a lock plate, while not moving, holding up the front end of the power spring before the rearward movement of the front end of the power spring exceeding a predetermined distance and releasing the front end of the power spring after the rearward movement of the front end of the power spring exceeding the predetermined distance.

Abstract: A fastener gun includes a housing having a plunger and a power spring for driving a fastener into a workpiece, and a trigger arm pivotally attached to the housing at a trigger pivot. One end of the trigger arm lifts the plunger to bias the power spring when the trigger arm pivots in a first direction toward the housing. A member contacting the trigger arm is provided that moves away from the trigger pivot as the handle moves toward the housing, so that force is applied at different locations on the trigger arm when the handle is squeezed, increasing the mechanical advantage of using the fastener gun.

Abstract: A spring energized stapler includes a “high start” design wherein a striker has a rest position above the staple track. A handle is pressed to energize a power spring while the striker remains stationary. At a predetermined position of the handle, the striker is released to eject a staple. A subassembly of a cage and the power spring provides a preload to the power spring in the rest position. The subassembly is separately movable from the handle to allow a handle pressing end to move farther than the striker's distance of travel. The handle includes a movable pivot location to enable enhanced motion of the handle pressing end. Alternatively, an optional lever links the striker to the power spring to provide leverage upon the power spring. A release latch may be mounted in front of the striker to be engaged by the lever or the handle.

Abstract: A stapler has a supporting base, a magazine assembly, a trigger assembly and a leg-flatting device. The trigger assembly has a trigger lever and a pushing element. The pushing element is mounted pivotally on the trigger lever with a pivot and has two pushing arms extending toward the supporting base. The leg-flatting device is mounted on the supporting base and has a sliding base, a moving base and an anvil element. The sliding base is slidably mounted on the supporting base and has a pushed segment corresponding to and selectively pushed by the pushing arms. The moving base is selectively blocked by the sliding base to keep the moving base from moving downwardly before the sliding base sliding relative to the supporting base and has an elongated hole. The anvil element is mounted in the elongated hole in the moving base.

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 table including a clincher mechanism is provided to be supported pivotably by a rear portion of a main body frame, the table is integrally formed with a wing piece 9 projected along the main body frame, a locking device is formed between the wing piece of the table and the main body frame, and by engaging the locking device with the wing piece, a pivoting force in an opening direction of the table is hampered.

Abstract: A tool with a structure, a driver that reciprocates along an axis between a returned position and an extended position and a bumper that is coupled to the structure so as to be disposed between the structure and the driver. The bumper includes a beat piece and a damper.

Abstract: A device that generally includes a multistage solenoid having at least a first stage, a second stage and an armature member that travels therebetween. The device also includes a control module connected to the multistage solenoid. The control module detects a position of the armature member relative to at least one of the first stage, the second stage and a combination thereof. The control module adjusts a magnetic field of the at least one of the first stage, the second stage and the combination thereof based on the position of the plunger armature relative thereto.

Abstract: A paper tool includes a base having a front end and a rear end and a drive arm pivotally coupled to the base about a first pivot axis. The drive arm includes a front portion proximate the front end of the base and a rear portion proximate the rear end of the base. The stapler also includes a handle pivotally coupled to the base and a drive member supported by the handle rearwardly of the first pivot axis such that, when the handle pivots relative to the base, the drive member engages the rear portion of the drive arm to pivot the drive arm about the first pivot axis.

Abstract: A hand-held fastener driver for fastening elements, having a driving tappet that is movably mounted in a tappet guide and that can be driven using at least one drive spring element is disclosed, having a tensioner for the drive spring element, and having a locking mechanism. In a locked position of the locking mechanism, the drive spring element can be locked in its tensioned position, whereby the tensioner has a tensioning element that is provided with a profile, and said tensioning element can be axially moved along a longitudinal axis of motion using a rotatable counter-element that is engaged with the profile and that can be driven by a motor.

Abstract: A hand-held drive-in tool for driving fastening elements (60) in a workpiece (U) includes a drive-in ram (13) for driving the fastening elements (60) in the workpiece (U), at least one drive spring member (31) for driving the drive-in ram (13), a preloading device (70) for the drive-in ram (13) and the drive spring member (31), a locking device (50) which retains the drive-in ram (13) and the drive spring member (31) in a preloaded position (33) when the locking device is located in its locking position (54), an actuation switch (19), for initiating the drive-in process for displacing the locking device (50), and into a release position (55) thereof, and at least one further switch for displacing the locking device (50) in the release position thereof (55) independent from actuation of the actuation switch (19).

Abstract: A tool with a driver, a structure, a motor assembly and a bumper. The driver has a plurality of bumper tabs, each of the bumper tabs having an arcuate first contact surface that is formed about a tab axis, each tab axis being generally perpendicular to a translation axis about which the driver translates. The motor assembly is coupled to the structure and configured to selectively translate the driver along the translation axis. The bumper abuts the structure and includes a plurality of bumper members. Each bumper member is located in-line with an associated one of the bumper tabs and includes an arcuate second contact surface that is formed about an axis that is generally orthogonal to the translation axis and the tab axis.

Abstract: A stapler movable between a rest position and a stapling position and having a front end and a rear end. The stapler includes a base, a staple magazine coupled to the base and configured to hold staples, and a driver blade operable to drive staples out of the staple magazine during stapling operations. The stapler further includes an elastic member coupled to the driver blade and operable to move the driver blade during stapling operations. The elastic member utilizes potential energy to move the driver blade during stapling operations. The driver blade is positioned above the staple magazine when the stapler is in the rest position and the magazine is extendable from the front end of the stapler to allow a user to load staples in the magazine. The stapler is configured such that only the potential energy of the elastic member can operate the driver blade during stapling operations.

Abstract: A stapler has a table formed with a clincher mechanism at a front end and is rotatably supported on a frame. A pair of locking plates slidably supported along the frame between the table and the frame prevents the clincher mechanism from rotating in a direction in which the clincher mechanism moves toward a staple driving section. Drive cams are provided independently for each of the locking plates to drive the locking plates. The times at which the respective locking plates are pulled out from between the table and the frame by the respective drive cams are shifted from each other.

Abstract: The present invention provides a dual protective device of a heavy-duty stapler, in particular to a control device of stapler that controls safely the action of striking slice with spring; of which, a base-controlled active protective device is mounted at rear side of the main body of the stapler, and operated in combination with a manually-operated safety switch that's arranged at front side of the main body of the stapler, thus forming an easy-to-use dual protective device.

Abstract: A stapler includes a base having two frames on first end thereof and a magazine and an arm are respectively pivotably connected to the frames. A first link has a first end movably and pivotably connected with a slot defined in the arm and a second end of the first link is movably and pivotably connected to a first end of a second link. A hole is defined through the first link and located between the first and second ends of the first link. A pin extends the through hole and removably rested on the top of the frames. The second link is pivotably the frames at its mediate portion. The arm pivots the first link which pivots the second link so that the second end of the second link generates a significant force to the staples.

Abstract: A flat-type stapler is provided which can fasten a large number of sheets of paper with a small force and in a smooth fashion. The stapler includes a base portion, a magazine portion, a push-down member, handle supporting members, and a handle portion. The handle portion causes the push-down portion to descend by virtue of the principle of the lever with the handle shaft made to act as a movable fulcrum. A portion of the handle may be used to apply force, and the connecting shaft may be used as a point of action.

Abstract: A desktop stapler has a base member including a restricting unit; a magazine including a plunger disposed on the head thereof; two linkage devices; a press member; and a guide member. Each linkage device includes a first hole, a third hole, a second hole formed on a bend between the first and third holes, and a pivot hole. Each pivot hole connects with the base member via the restricting unit. The press member includes a press portion defined on the bottom of an end thereof, a grip portion defined on another end thereof and connecting to the plunger of the magazine, and two pivot holes formed on two sidewalls thereof and connected to the third holes of the linkage devices respectively via a coupler unit. The guide member includes a first end inserted via a coupler unit, a second end defining a press end, and two second pivot holes formed on two sidewalls thereof and opposite to each other.

Abstract: A fastening device that drives one or more fasteners into a workpiece generally includes a tool housing and a multistage solenoid contained in the tool housing. The multistage solenoid includes an armature member that travels through at least a first stage, a second stage, and a sense coil disposed therebetween. A driver blade assembly includes a blade member connected to the armature member. The driver blade assembly is operable between an extended condition and a retracted condition. A control module determines a position of the armature member relative to at least one of the first stage and the second stage based on a signal from the sense coil. The trigger assembly is connected to the control module and partially contained within the housing. The trigger assembly is operable to activate a driver sequence that moves the driver blade between the retracted condition and the extended condition.

Abstract: An electric tool switch mechanism includes a trigger switch for operating to at least rotate or stop a DC motor; and a power switch connected between the DC motor and a battery power source and closed when a pressed amount of the trigger switch exceeds a predetermined threshold value. The mechanism further includes a switching device connected between the DC motor and the battery power source via the power switch; a control circuit for controlling to turn the switching device on/off using a desired on-duty when the pressed amount of the trigger switch exceeds the threshold value; and a stopping unit that is controlled by the trigger switch for forcibly turning the switching device off before the power switch is changed from on to off when the trigger switch is released.

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 driving tool that has a driver support base. The driver support base includes a transmitting portion having a V-shape in cross section. The driver support base can be pressed by a press member to cause the transmitting portion to wedge between a pair of left and right drive wheels, so that a friction force is produced to move the driver support base.

Abstract: An example fastener gun includes a housing having a plunger and a power spring for driving a fastener into a workpiece, and a trigger arm pivotally attached to the housing at a trigger pivot. The trigger arm lifts the plunger to bias the power spring when the trigger arm pivots in a first direction. The example fastener gun also includes a handle extending upwardly from the housing and pivotally attached to the housing at a handle pivot, and a roller for pivoting trigger arm in the first direction when the handle moves toward the housing. The roller moves away from the trigger pivot when the handle moves toward the housing.

Abstract: A manually swingable hammer-type stapling tool having an elongate housing having a striker movably mounted thereon; a staple driving blade mounted on the housing and movable relative to the striker along a staple discharge path when the striker impacts against a surface; a staple magazine carried on said housing and containing a clip of staples so that a leading staple of the clip is disposed in a staple discharge path below the driving blade; and a cap supply and feeding arrangement mounted on the housing for positioning a cap in a discharge position wherein it is disposed below the leading staple, the arrangement including a cap magazine containing a significant number of individual caps disposed in adjacent and joined edge-to-edge relationship to define a connected strip of caps, and an impact activated feeding mechanism for advancing a leading cap of the strip into the discharge position.

Abstract: A clincher device is provided with a thin plate piece disposed between a guide surface of a clincher member for bending and guiding legs of a staple and a rear surface of sheets of paper. The legs of the staple penetrating through the sheets of paper are guided and bent along a lower surface of the thin plate piece. The clincher device is further provided with an operation piece protruded upward from the clincher device. The operation piece is operated via the sheets of paper by a staple driving portion which is operated to approach toward and separate from the clincher device. The operation piece moves the thin plate piece relative to the staple after a completion of a binding operation of the sheets of paper so that the thin plate piece sandwiched by the legs of the staple is pulled out from the legs of the staple.

Abstract: A stapler has a center of gravity and has a base assembly, a magazine assembly and a trigger assembly. The magazine assembly connects to the base assembly and has a cap. The trigger assembly connects to the base assembly and has a trigger lever and a limiting lever. The limiting lever prevents the trigger lever and the cap from pivoting excessively to keep the center of gravity of the stapler over the base assembly so that refilling the stapler is convenient.

Abstract: Stapler (1) which comprises a base part (2) and a stapling unit (3). The base part consists of a lower part (5) and an upper part (6) which are connected together such that they from each other, and between which parts is arranged a first elastic element (8) which, in an initial position, moves the upper and lower parts apart. A workpiece to be stapled is placed on the upper part (6), where an opening (31) is arranged through which the legs of the staple is driven after that the legs have driven through the workpiece, and to which upper part bending devices (21, 22), pivotable about pivot pins (25, 26), are connected. The upper part being blocked from moving downward by a blocking arrangement (21, 22, 25, 26, 44, 45) when the driver drives the staple legs through the workpiece. The blocking device is disengaged by means of a releasing device (53, 54, 55, 56) when the staple crown (40) contacts the upper surface (17) of the workpiece.

Abstract: An apparatus includes a cartridge for storing C-clips. The cartridge includes two lateral members and a lower member extending between the lateral members. The lateral members extend beyond the lower member by at least the thickness of the C-clips so that first one of the C-clips can be moved past the lower member. A saddle is movably connected with the lower member for carrying some of the C-clips. The saddle includes a slope for contact with the first one of the C-clip. Thus, the saddle is moved as the first one of the C-clips is moved. A pocket is connected with the cartridge below the saddle for receiving a pin. A pusher is put movably in the cartridge for pushing the C-clips. An elastic element biases the pusher. A shell receives the cartridge. A hammering device forces the first C-clip onto the pin against the slope.

Abstract: A stapler comprises a stapling unit and a base movably connected to each other. The base comprises an anvil, a lower and an upper part with a contact surface which has a staple opening against which a workpiece is placed. The upper and lower parts are movably connected to each other. In operation, movement of the stapling unit and the base toward each other drives a staple into the workpiece, wherein the staple crown comes in contact with the workpiece and the staple legs extend through the staple opening. Upon movement of the upper part and stapling unit toward the lower part, the staple legs are bent by the anvil into contact with the underside of the workpiece. The anvil is attached to the base by an elastic element between the lower and upper part, and is urged toward the staple opening to block the opening when the stapler is in an initial position.

Abstract: An effort-saving stapler includes a shell device and a triggering device installed to the shell device. The triggering device includes a trigger, an operation element and two bearings. An end of the trigger defines a lever for user to hold, and another end of the trigger includes teeth engaging with the shell device. A pivot pin is adapted for inserting through the trigger, the operation element and the bearings so that the pivot pin can drive the operation element to move in the trigger. A limit pin is adapted for inserting through the trigger and the operation element and abuts with the shell device. The pivot pin is regarded as a fulcrum, while the trigger is pressed, the teeth of trigger engage with the shell device so that the pivot pin quickly moves with the trigger.

Abstract: A paper tool includes a power transmission linkage. The linkage includes a base, a drive link, an input member, and at least three pivots connecting members of the linkage. At least one of the pivots provides for both rotational and translational movement between two members connected by the at least one pivot.

Abstract: A staple cartridge provided with a cartridge main body and a refill contained with connected staples. The refill is interchangeably attached to the cartridge main body. A guide portion for guiding the connected staples at an inside of the refill to a staple strike out portion is provided between a refill mounting portion and the staple strike out portion. Lower portions of the guide portion and the refill mounting portion are respectively arranged with a first actuator operated in accordance with a presence/absence of the connected staples at an inside of the guide portion and a second actuator provided in accordance with a presence/absence of the connected staples at an inside of the refill mounting portion. The first actuator and the second actuator are interlocked.

Abstract: A desktop stapler comprises a base member including a restricting unit; a magazine including a plunger disposed on the head thereof; two linkage devices, with each linkage device including a first hole, a third hole, a second hole formed on a bent between the first and third holes, and a pivot hole, with each pivot hole adapted to connect with the base member via the restricting unit; a press member including a press portion defined on the bottom of an end thereof a grip portion defined on another end thereof and connecting to the plunger of the magazine, and two pivot holes formed on two sidewalls thereof and connect to the third holes of the linkage devices respectively via a coupler unit; a guide member including a first end that is inserted via a coupler unit, a second end defining a press end, and two second pivot holes formed on two sidewalls thereof and opposite to each other.

Abstract: When the plunger is a game moved to a prescribed position Ph of an initial state on the upper dead point side by the drive force of the motor after the plunger is moved to the lower dead point side, the controller of a spring driven-type fastener driving tool reduces the rotational speed of the motor to a prescribed value or less based on the detection signal of the operation detection switch and then stops the slowed down motor. In order to achieve this, the plunger is stopped at a stop position of an initial state that is as close as possible to an upper dead point side drive start position and is subjected to a strong compression force by the drive spring.

Abstract: A driving tool that includes a frame, a motor assembly and a resilient member. The motor assembly is coupled to the frame and includes an electric motor, a flywheel driven by the electric motor, a pinch roller and a driver disposed between the flywheel and the pinch roller. The pinch roller is selectively movable from a first position to a second position to drive the driver into engagement with the flywheel. The driver is movable between a returned position and an extended position. The resilient member is coupled to the frame and biases the driver away from the flywheel to reduce or eliminate contact between the flywheel and the driver when the flywheel is at rest, the driver is in the returned position and the pinch roller is in the first position. A method for operating a driving tool is also provided.

Abstract: This invention provides a spring powered stapler comprising a power spring having a front and a rear end, the rear end of the power spring being limited from moving frontward, a middle section between the front and rear end of the power spring being bent down while the front and rear end of the power spring maintaining in upper positions for storing energy in the power spring, and the front end of the power spring moving rearward as a result of the middle section of the power spring being bent down, and a lock plate, while not moving, holding up the front end of the power spring before the rearward movement of the front end of the power spring exceeding a predetermined distance and releasing the front end of the power spring after the rearward movement of the front end of the power spring exceeding the predetermined distance.

Abstract: A stapler including a base having a first end, a second end, and opposite sides. A staple magazine is connected to the base for movement with respect to the base during stapling operations. A cover assembly is connected to the base. The first end of the base includes first and second hip portions such that the staple magazine and cover assembly are received within the hip portions. In some embodiments, the hip portions each include a cutout portion. In other embodiments, the hip portions each include a rib extending inwardly toward the magazine.

Abstract: Hammer tacker (1) for driving staples (7) into a workpiece, which tacker comprises a body (2) and a magazine (5) which is pivotably connected by connecting element (6) to the body in such a way that at the front edge of the tacker the magazine can move into and out of the body, and which magazine is provided with an endpiece (9) containing an elongate staple rail (10) which in the longitudinal direction of the magazine is slidably fitted to the magazine and is secured to the magazine by securing elements (13,14) and which, when fitted, leaves a gap (23) between its front edge (16) and the tacker's front edge (22), whereby the securing elements (13,14) take the form of a hook (13) integral with the staple rail/magazine (10, 5) and an aperture (14) on the magazine/staple rail (5, 10) and lockingly engage with one another when the staple strip is fitted to the magazine.

Abstract: A stapler movable between a rest position and a stapling position and having a front end and a rear end. The stapler includes a base, a staple magazine coupled to the base and configured to hold staples, and a driver blade operable to drive staples out of the staple magazine during stapling operations. The stapler further includes an elastic member coupled to the driver blade and operable to move the driver blade during stapling operations. The elastic member utilizes potential energy to move the driver blade during stapling operations. The driver blade is positioned above the staple magazine when the stapler is in the rest position and the magazine is extendable from the front end of the stapler to allow a user to load staples in the magazine. The stapler is configured such that only the potential energy of the elastic member can operate the driver blade during stapling operations.

Abstract: A miniature spring-actuated stapler includes a tapered, flat power spring to store energy and eject staples. The power spring pivots at a rear of the stapler housing and includes three co-extensive arms terminating near the striker. As the L-shaped handle of the stapler is pressed, it acts on the center arm of the power spring to deflect it downward while the outer arms deflect upward. The arms are integral at a rear end and the outer arms are linked to the striker at the front. A tapered, flat reset spring disposed generally parallel to the power spring is used to reset the internal action. The housing includes open top and rear areas with the handle providing the enclosure thereof. A base assembly is slidably attached at a bottom of the stapler with an open position exposing a staple-loading chamber.

Abstract: A stapler has a center of gravity and has a base assembly, a magazine assembly and a trigger assembly. The magazine assembly connects to the base assembly and has a cap. The trigger assembly connects to the base assembly and has a trigger lever and a limiting lever. The limiting lever prevents the trigger lever and the cap from pivoting excessively to keep the center of gravity of the stapler over the base assembly so that refilling the stapler is convenient.

Abstract: Disclosed is a gun type continuous clip ejecting apparatus. The gun type continuous clip ejecting apparatus includes a body including bodies symmetrically combined by each other with a curved shape and a clip guide groove therein; a cover inserted into the upper front end of the body; a slider installed slidably along a guide groove formed within the body; a clip loading push rod in which protrusions are formed at an end thereof and hooked to the hook of the slider, a hook is protruded upwardly at the other end thereof and protrusions are protruded at sides thereof; a tension spring in which an end thereof is hooked to the hook of the clip loading push rod and the other end thereof is pulled upwardly and fixed to the upper inside surface of the slider; a discharge push rod; a tension spring; and a trigger rotatably fixed to a bottom side of the body by a hinge shaft and including upper hooking protrusions contacted with a bottom end between both sides of the discharge push rod.

Abstract: A hand-held staple gun comprises a housing, a driver, a spring means, a handle, and a safe actuation mechanism. The safe actuation mechanism includes a swing means, a link, and an actuation control rod. The swing means is pivotally secured to the housing and the link is pivotally connected with the swing means. When the staple gun is not in use, the link cannot engage the driver even if the handle is pressed down, and when the staple gun is in use, the actuation control rod is pressed upward into the housing, so that the actuation control rod pushes the swing means, making the link engage the driver and therefore possible to drive staples out of the staple gun when pressing down of the handle.

Abstract: It is an object of the invention to provide an effective technique for achieving a smooth driving operation with a driving power tool for driving a driving material into a workpiece. A representative driving power tool for driving a driving material into a workpiece is provided with a coil spring, an operating member. The power tool fixer includes a rotating element that rotates in a normal direction it the spring force of the coil spring as the drive member drives the coil spring, an outer edge of the rotating element, an engaging member and a lock avoiding mechanism. The outer edge includes a first outer edge portion and a second outer edge portion, a first vertical wall and a second vertical wall. The engaging member defines a working stroke of the driving operation.

Abstract: A stapler includes a base which has two connection plates on a top thereof and each connection plates include three holes. A magazine has one end pivotably connected to the hole located at the rear end of the base and staples are received in the magazine. A first arm has two grooves in the two sidewalls of the rear end thereof and is pivotably connected to the second hole of the connection plates. A second arm located between the first arm and the magazine, a rear end of the second arm movably engaged with the two grooves in the first arm. The second arm is pivotably connected to the third holes of the connection plates.

Abstract: An effort-saving stapler includes a shell, a magazine, a hammer, an elastic element, a block, a trigger and an extensive element. The magazine is disposed in the shell for supporting and feeding nails. The hammer is disposed in the shell for hammering the nails, one at a time. The elastic element is disposed in the shell for biasing the hammer. The block is disposed in the shell. The trigger is movably and pivotally connected to the shell and engaged with the block at an engagement point. The extensive element includes a first end connected to the hammer and a second end telescopically connected to the trigger. When the trigger is operated, the hammer is lifted by the extensive element and the engagement point is moved towards the hammer.

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 down to a desktop surface to guide paper sheets atop the base, easy access for lifting the stapler off a desk while in its 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 spring energized stapler includes a “high start” design wherein a striker has a rest position above the staple track. A handle is pressed to energize a power spring while the striker remains stationary. At a predetermined position of the handle, the striker is released to eject a staple. A subassembly of a cage and the power spring provides a preload to the power spring in the rest position. The subassembly is separately movable from the handle to allow a handle pressing end to move farther than the striker's distance of travel. The handle includes a movable pivot location to enable enhanced motion of the handle pressing end. Alternatively, an optional lever links the striker to the power spring to provide leverage upon the power spring. A release latch may be mounted in front of the striker to be engaged by the lever or the handle.

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: A stapler includes a base, a cover, two clips, a feeding device and a bending and cutting device. The cover is installed on the base. The clips connect the cover with the base. The feeding device feeds staples. The security device ensures normal movement of the cover. The bending and cutting device bends and cuts the legs of each staple one after another.