Abstract: Two slide bases (106) synchronizingly traveled on linear guides (105) arranged upwardly and downwardly in parallel with each other are rotatably attached with a clincher unit (107) and a driver unit (104) and provided with a click stop mechanism for fixing the clincher unit (103) and the driver unit (104) at a 0 degree position or a 45 degree rotated position. Respective outer peripheral portion thereof are provided with claw portions (119), (120), in correspondence with the 0 degree position and the 45 degree rotated position and a stopper pin (121) is arranged at a traveling path. When the driver unit and the clincher unit are traveled from an initial position to a skewed binding position, the 0 degree claw portion 119 impinges on the stopper pin (121) and the driver unit and the clincher unit are rotated to the 45 degree rotated position to fix.

Abstract: Two slide bases (106) synchronizingly traveled on linear guides (105) arranged upwardly and downwardly in parallel with each other are rotatably attached with a clincher unit (107) and a driver unit (104) and provided with a click stop mechanism for fixing the clincher unit (103) and the driver unit (104) at a 0 degree position or a 45 degree rotated position. Respective outer peripheral portion thereof are provided with claw portions (119), (120), in correspondence with the 0 degree position and the 45 degree rotated position and a stopper pin (121) is arranged at a traveling path. When the driver unit and the clincher unit are traveled from an initial position to a skewed binding position, the 0 degree claw portion 119 impinges on the stopper pin (121) and the driver unit and the clincher unit are rotated to the 45 degree rotated position to fix.

Abstract: A stapler has a base section and a stapling unit. The stapling unit is pivotally attached to the base section, and the base section is pivotally attached to a baseplate. In an initial position, the base section is fixed relative to the baseplate through a releasable locking mechanism connected to the baseplate and a base section. The base section has pivoting bending arms in an area underneath a support surface for a workpiece to be stapled. When a driver has driven a staple into the workpiece to a position in which the crown of the staple is in contact with the workpiece, the locking mechanism is released, and the base section pivots and is tilted against the baseplate, causing the bending arms to pivot so that the legs of the staple are bent into a position against the workpiece. A cutting pad disposed in an area between the bending arms interacts with the bending arms to cut off excess length of the staple legs.

Abstract: Two slide bases (106) synchronizingly traveled on linear guides (105) arranged upwardly and downwardly in parallel with each other are rotatably attached with a clincher unit (107) and a driver unit (104) and provided with a click stop mechanism for fixing the clincher unit (103) and the driver unit (104) at a 0 degree position or a 45 degree rotated position. Respective outer peripheral portion thereof are provided with claw portions (119), (120), in correspondence with the 0 degree position and the 45 degree rotated position and a stopper pin (121) is arranged at a traveling path. When the driver unit and the clincher unit are traveled from an initial position to a skewed binding position, the 0 degree claw portion 119 impinges on the stopper pin (121) and the driver unit and the clincher unit are rotated to the 45 degree rotated position to fix.

Abstract: A magazine 5 attached with a cartridge 6, in which connected staples are charged, is supported inside a support frame 4 being capable of moving toward a clincher section 3. A cam follower 17 is formed being protruded from aside of the magazine 5. When this cam follower 17 is engaged with a cam groove 21 formed in a drive rotary member 9 for driving a staple drive mechanism 8 arranged in the support frame 4, the magazine 5 is directly operated toward the clincher section 3 by the drive rotary member 9.

Abstract: A stapling device (1) with at least two stapling heads (4, 5) attached to a stapling head unit (2) for stapling sheet-like material, in particular paper, cardboard or the like, is provided, wherein the distance between at least two stapling heads (4, 5) can be adjusted relative to each other. In a stapling device (1) according to the invention, the retrofitting necessary for various products is to be simplified. This is achieved in the invention by moveably arranging the stapling heads (4, 5) relative to each other, and providing a drive unit (9, 10) for setting the stapling head distance.

Abstract: A stapler includes a base, a cover put movably on the base, a feeding device for feeding staples, and a bending and cutting device provided between the base and the cover for bending and cutting the legs of each staple. The cutting device includes a seat provided on the base and a housing attached to the cover. The seat includes two wedges formed thereon and a pusher formed thereon. A stationary cutting element is provided in the housing. Two movable cutting elements are provided movably in the housing and on the two wedges so that they are moved towards the stationary cutting element in order to cut the legs of each staple as they are moved towards the seat together with the housing. A spring is put between the movable cutting elements in a tendency to push the movable cutting elements from the stationary cutting element.

Abstract: A stapler includes a base, a cover coupled to the base, a driver for driving a leading staple from a supply of staples into a workpiece, a handle constructed and arranged to actuate the driver and move the cover towards the base, and a cutting assembly. The cutting assembly includes a pair of benders constructed and arranged to engage and bend the legs of the leading staple, a stationary cutter, and a pair of movable cutters that interact with the stationary cutter to cut an excess length of each of the legs of the staple. Movement of the cover towards the base causes the movable cutters to move towards the stationary cutter.

Abstract: A stapler capable of avoiding defective clinching and buckling of legs even if the stapler is of a vertically-separated type in which a driver unit and a clincher unit are separated vertically is disclosed. This stapler is provided with clincher members (133 and 134) for clinching legs of a staple driven out by a driver and holders (131 and 132) which hold the clincher members (133 and 134). Also, in this stapler, guide surfaces (131b and 132b) for guiding tips of the legs of the staple toward the clincher members (133 and 134) are formed on upper surface portions of the holders (131 and 132), and the holders (131 and 132) are movable in a direction perpendicular to a surface which includes a direction that the legs of the staple are clinched.

Abstract: A stapler having a driver unit vertically separated from its clincher unit, which has a clincher base with a clincher. The clincher base is disposed to vertically reciprocate, and sheets inserted between the base and driver unit are clamped between the base and the driver unit when the base is reciprocated. The stapler has a first motor to operate the driver, and a second motor to reciprocate the clincher base and operate the clincher. In sequence, the second motor reciprocates the base and makes the base clamp the sheets, and then stops; the first motor makes the driver drive out the staple, and then stops; the second motor makes the clincher clinch the staple legs having passed the sheets, the base is returned, and the second motor stops; and after clinching, the first motor returns the driver to the initial position, and then stops.

Abstract: Apparatus for closing a fastener includes a first member adapted to engage and bend a fastener toward a closed position, a second member defining a recessed fastener guide adapted to engage and bend the fastener toward the closed position, the recessed fastener guide being generally aligned with the first member to receive at least a portion of the fastener from the first member, structure for moving the first member, and structure for moving the second member relative to the first member to move the fastener toward the closed position.

Abstract: A stapler includes a base, a cover installed on the base, a feeding device for feeding staples, a connecting device for connecting the base, the cover and the feeding device with one another, and a bending and cutting device installed between the base and the cover for bending the legs of each staple and cutting the legs of each staple one at a time.

Abstract: Two slide bases (106) synchronizingly traveled on linear guides (105) arranged in parallel with each other are rotatably attached with a clincher unit (103) and a driver unit (104) and provided with a click stop mechanism for fixing the clincher unit (103) and the driver unit (104) at a 0 degree position or a 45 degree rotated position. When the driver unit and the clincher unit are traveled from an initial position to a skewed binding position, the 0 degree claw portion (119) impinges on the stopper pin (121) and the driver unit and the clincher unit are rotated to the 45 degree rotated position to fix. When the driver unit and the clincher unit are traveled reversely to the initial position, the 45 degree claw portion (120) impinges on the stopper pin (121) and the driver unit and the clincher unit are returned to the 0 degree position to fix.

Abstract: A poisoning groove 16 is formed at a slide guide shaft 4, and a lever 15 of a driver unit 1 is engaged with the positioning groove to position the driver unit. A clincher unit is positioned by engaging a positioning pin 10 of a clincher unit 2 with a pin hole 13 of a slide guide table 3, the driver unit is provided with an engageable connecting pin 9, and the positioning pin and the connecting pin are driven by a cam plate 12. When the cam plate is rotated by 180 degrees, the positioning pin 10 is detached from the pin hole 13 to make the clincher unit 2 movable, the clincher unit and the driver unit are connected by engaging the connecting pin 9 with the driver unit, and the clincher unit and the driver unit are integrally traveled.

Abstract: A sheet after-treatment device equipped with a stapler main body which staples sheets fed between upper and lower jaws in an opened state with a staple by closing the upper and lower jaws, and a holder for holding the stapler main body, in which a sheet transport guide surface of an upstream-side portion of the holder and the lower jaw of the stapler main body are arranged in the area where the sheets are transported, and the sheet transport guide surface of the upstream-side portion of the stapler main body is situated above the lower jaw.

Abstract: The present invention is to provide a staple cartridge that can offset any discrepancies when mounting a staple cartridge, even if staples are slightly offset to check the occurrence of stapling defects. The staple cartridge 100 of the holding means 200 which is equivalent to the cartridge holder disposed as either a body separate to the stapler unit 300 or unitized thereto, actuates the staple feeds means 202. Even if the position of the staple pulled out from the staple cartridge is offset, this action corrects the offset to correctly set the staple at the driving position thereby enabling it to check stapling defects that occur because of mis-positioning of the staple set position.

Abstract: A stapler has a base section and a stapling unit. The stapling unit is pivotally attached to the base section, and the base section is pivotally attached to a baseplate. In an initial position, the base section is fixed relative to the baseplate through a releasable locking mechanism connected to the baseplate and the base section. The base section has pivoting bending arms in an area underneath a support surface for a workpiece to be stapled. When a driver has driven a staple into the workpiece to a position in which the crown of the staple is in contact with the workpiece, the locking mechanism is released, and the base section pivots and is tilted against the baseplate, causing the bending arms to pivot so that the legs of the staple are bent into a position against the workpiece. A cutting pad disposed in an area between the bending arms interacts with the bending arms to cut off excess length of the staple legs.

Abstract: A stapler apparatus includes a fixed frame, a movable frame pivotably mounted to the fixed frame, a staple driving device, and a staple bending device to bend the staples. A drive mechanism reciprocally moves the movable frame with respect to the fixed frame to clamp a stack of sheets between the fixed frame and the movable frame. A transmission member is movably supported on the movable frame without any connection utilizing an elongated slot. An urging member is disposed to bias the transmission member with respect to the movable frame, the transmission member being coupled to the drive mechanism such that the drive mechanism engages and moves the transmission member with respect to the movable frame, thereby overcoming the bias of the urging member, to compensate for a stack height of the stack of sheets clamped between the fixed frame and the movable frame.

Abstract: A stapler apparatus includes right and left side frames each opposing the other, a reciprocally moving staple driving member arranged between the side frames, a cam member interlocked to the staple driving member to reciprocally move the staple driving member and a drive motor interlocked to the cam member. The drive motor, the cam member and the staple driving member are arranged in order between the left and right frames.

Abstract: A stapler having a detached base supporting an anvil and a first magnetic element, and a stapling assembly for ejecting staples from a magazine port. The stapling assembly supports a second magnetic element positioned for magnetic coupling to the base to align the anvil with the magazine port. Accordingly, the staple-driving stapling assembly and detached anvil-supporting base are not mechanically coupled. Instead, the stapling assembly and base are magnetically couplable. The magnetic coupling feature eliminates throat depth limitations and allows for staple placement at any desired location on a sheet of any size. An alignment guide may be provided to visually indicate an approximate location where a driven staple will be placed. The base and stapling assembly may be provided with friction pads for limiting movement of any sheets therebetween while stapling.

Abstract: A staple-former (11) in a stapler (1) that uses a driver blade (10) to drive staples (17), preferably into a sheaf of paper (16). The stapler contains a magazine (7) of staple blanks (8). A feed device (6) advances staple blanks onto an integral bending die (15) for bending into staple shape. Each staple has a first and a second leg (18, 19) and a crown portion (20). The staple-former (11) includes first and second leg-bending parts (24, 26) and crown-forming part (28). A staple forms when a drive device (12, 13, 14), moves the leg-bending parts (24, 26) and the crown-forming part over the bending die (15) causing a staple blank (8) to assume a staple shape. The staple-former then reciprocates to its starting positions, the staple advances to the driver blade (10), and a biasing element (32) urges the crown-forming part (28) away from the staple-former (11).

Abstract: A stapler has a main base, a pivotal base, a recoiling device, a stapling device, a connecting device and a leg-cutting device. The leg-cutting device is mounted between the main base and the pivotal base and has an upper base, a lower base, two arm holders, two pushing arms, a cutting pad, two cutting blocks, two guiding blocks and two biasing members. The lower base has an arm-lifting top surface. The pushing arms are pivotally connected to the arm holders and each has a sliding end slidably attached to the arm-lifting top surface of the lower base and a pushing end. The cutting blocks are attached respectively to the pushing ends of the pushing arms. The guiding blocks are slidably mounted on the pivotal base and are driven by the cutting blocks.

Abstract: An electric stapler includes a clinching mechanism and an anvil device. The clinching mechanism bends protruding legs of a staple to fasten objects together. The anvil device includes a stationary frame, a cover and a sliding anvil mechanism. The cover is mounted on the stationary frame and has a through hole through which the legs of the driven staple protrude. The sliding anvil mechanism is mounted in the stationary frame and includes a first and a second anvil device. Each of the anvil devices includes a sliding anvil. The sliding anvils are driven toward the through hole to bend respectively the legs in the through hole. Consequently, the sliding anvils completely bend the legs protruded from the bottom of the objects to keep a person handling the stapled object from potential injury.

Abstract: In a built-in stapler built into a machine including a driver unit (2) for ejecting staples against sheets of paper to be bound by a motor-driven driver; and a clincher unit (3) for folding legs of the staples, the driver unit and the clincher unit being held independently from each other with a determined distance therebetween so as to move respectively, stopping positions at one ends of respective moving ranges of the units (2, 3) are set to be displaced from each other, and the stopping position of the clincher unit (3) is provided at an inner side in the moving range than the stopping position of the driver unit (2).

Abstract: A surgical stapler anvil provides an expanded leg-receiving target area for a staple forming pocket in a compact staggered array by narrowing the lateral width of the leg-clinching portion of a laterally adjacent pocket. Advantageously, the lateral spacing between adjacent rows of staple forming pockets can remain small, while the leg-receiving target area for laterally adjacent rows of pockets is significantly expanded. The staple forming pockets include two mirror image leg-forming cups. The cups are longitudinally aligned with their respective ascending leg clinching portions adjoining in the center of the pocket. Laterally spaced guide surfaces extend upwardly and outwardly from the clinching surface at the bottom of the cup to define an expanded leg-receiving target area at the distal ends of the pocket. Substantially planar laterally outward portions of the guide surface intersect with the guide surface of a laterally adjacent pocket to form a non-linear ridge.

Abstract: A staple apparatus is installed in a stapler so the stapler can staple stacks of paper with different thicknesses without having to change staples or components in the stapler. The apparatus cuts legs of a staple to a proper length after the staple has been driven completely into a stack of paper and bends the protruding ends to bind the stack of paper together. The apparatus performs these operations with a cutter, a bending template, and a cutting anvil in conjunction with a sliding bracket and a cutter actuator. Operation of the cutter is delayed by a staple driver actuator until the staple has completely penetrated the stack of paper.

Abstract: A stapler apparatus includes a staple driving member to drive staples into a sheet bundle and being reciprocally supported on a frame. The staple driving member is configured to engage and drive staples. A cam member is interlocked to the staple driving member to reciprocally move the staple driving member. A drive motor is interlocked to the cam member. The cam member includes at least two rotating cams comprising rotating shafts extending in a direction intersecting a plane formed by said staple driving member reciprocal movement locus. The two rotating cams and the staple driving member abut at at least two points.

Abstract: A stapler anvil and method for clinching a staple is disclosed. The anvil includes a body having a well. The well has an axis extending between the legs of a staple and is defined by a first surface having a first portion along which the first leg of the staple is directed as the staple is being clinched, and a second portion extending substantially at an angle relative to the first portion to direct the second leg of the staple at least partially away from the axis as the staple is clinched. The well is further defined by a second surface spaced from the first surface. The second surface is configured to redirect the second leg of the staple at least partially back toward the axis after the second leg has been directed at least partially away from the axis by the second portion of the first surface.

Abstract: Disclosed herein is a stapler for forming staples according to a thickness of a stack and clinching the stack with at least one of the formed staples.

Abstract: A staple cartridge includes: a cartridge body for accommodating a large number of staples; and a face plate provided at a front end portion of the cartridge body, for forming a striking passage (211) of striking a staple by a driver, wherein support pieces are integrally formed from both side edges of the face plate to the rear, engaging bosses formed in the support pieces are engaged with recess portions formed on both sides of the front end portion of the cartridge body (206), and the face plate is slidably and pivotally supported by the cartridge body (206). In the cartridge body (206) and cover (209), the small thickness grooves (215), (216), by which the staple cartridge (204) is bent into two pieces, are formed on the circumference of the staple accommodating portion.

Abstract: A stapler apparatus is equipped with linked staples and includes a staple feed member configured for feeding staples to a driving position, a staple driver operable to drive the staples from the driving position into a stack of sheets, and an anvil unit operable to engage and clamp the stack of sheets to be stapled. The staple feed member is powered by movement of the anvil unit.

Abstract: A driver unit comprises a fixed frame (12), an inner frame (20), a magazine (40), a cartridge (50), a driver (70) attached movably upwardly and downwardly to the magazine (40) and pivoted on the inner frame (20), and a basing member for biasing downwardly the magazine (40). A staple is driven out through the driver (70) entered in a drive-out part by the inner frame being moved upwardly together with the magazine (40) by the lifting of a clincher part (111) of a clincher unit (100). When the clincher part (111) is lowered, the inner frame (20) and magazine (40) are lowered and returned to an initial position by the biasing member. The magazine 40 is attached rotatably about a shaft 44 on the inner frame 20. The cartridge (50) can be removed from the magazine (40) by rotating the magazine (40) to direct upwardly a back portion of the magazine (40).

Abstract: In an electric stapler which includes: a passage (4) formed in a magazine portion (2) of the stapler body (1), for attaching and detaching a staple cartridge (3); and sheet staples (a) accommodated in the staple cartridge (3), wherein both side portions of the lead staple (a1) and the following staples of the sheet staples (a) are successively bent and stricken, a staple detection sensor (7), both sides of the end of the actuator (8) of are tapered, is arranged so that both side portions can be directed to an entrance of the passage (4) and the end of the staple detection sensor (7) can be engaged with an upper or a lower face of the sheet staples (a) of the staple cartridge (3) attached into the passage (4). The actuator (8) is swung and tilted in the perpendicular direction to the longitudinal direction of the passage (4) and biased by a spring so that it can obliquely rise at all times.

Abstract: A stapling device includes a wire fed in the casing of the device and a staple-bending member is movably connected to a base in the casing and has two protrusions extending from a lower end thereof. An ejecting member movably connected to the base. A mechanism is driven by an activation member and lowers the staple-bending member and the ejecting member to deform a section of the metal wire to be a staple which is ejected through an aperture to staple a pile of document.

Abstract: In a built-in stapler built into a machine including a driver unit (2) for ejecting staples against sheets of paper to be bound by means of a motor-driven driver; and a clincher unit (3) for folding legs of the staples, the driver unit and the clincher unit being held independently from each other with a determined distance therebetween so as to move respectively, stopping positions at one ends of respective moving ranges of the units (2, 3) are set to be displaced from each other, and the stopping position of the clincher unit (3) is provided at an inner side in the moving range than the stopping position of the driver unit (2).

Abstract: A stapler is provided with a frame and a head assembly pivotally disposed in the frame between a first open position and a second clamped position. The head assembly contains all of the operative elements of the stapler necessary to carry out a stapling operation and is biased toward the open position by a biasing member disposed between the head assembly and the frame. These operative elements include a staple driving mechanism, a motor fixed to the head assembly, a cam member connected to the motor and rotated thereby. The cam member contains at least three surfaces that simultaneously form and drive staples, pivot the head assembly in the frame, and actuate a microswitch controlling power to the motor. The cam member cooperates with a first bar disposed between the frame and a spring assembly to permit the first bar to flex to accommodate varying thicknesses or amounts of paper to be stapled.

Abstract: An electric stapler capable of handling multiple sheets of paper. A motor-driven pair of wheel gears turn a swing arm having a symmetrical structure for driving a staple firing assembly and a clinch mechanism, thereby applying large pressure uniformly on staples. The clinch mechanism bends staple legs in different directions so that they do not overlap each other, preventing the clinched part of paper from increasing in the thickness of the stacked paper.

Abstract: A compact, lightweight and rechargeable electric stapler for automatically punching holes in documents and the like is provided wherein a fixed switch is fixed to the case body and an actuating bar is moveable at the front end and back end, so the switch is durable and also the presence of staples can be determined at a glance with a LED. The electric stapler comprises a case body, drive train, wiring board, magazine frame, an arm, a fixed switch wherein an actuating switch for actuating the drive train (motor) is mounted on the case body, and a moveable actuating bar coupled to the fixed switch and mounted between the case body and frame.

Abstract: A driver unit comprises a fixed frame (12), an inner frame (20), a magazine (40), a cartridge (50), a driver (70) attached movably upwardly and downwardly to the magazine (40) and pivoted on the inner frame (20), and a basing member for biasing downwardly the magazine (40). A staple is driven out through the driver (70) entered in a drive-out part by the inner frame being moved upwardly together with the magazine (40) by the lifting of a clincher part (111) of a clincher unit (100). When the clincher part (111) is lowered, the inner frame (20) and magazine (40) are lowered and returned to an initial position by the biasing member. The magazine 40 is attached rotatably about a shaft 44 on the inner frame 20. The cartridge (50) can be removed from the magazine (40) by rotating the magazine (40) to direct upwardly a back portion of the magazine (40).

Abstract: A stapler for clinching materials together with a generally U-shaped staple. The stapler has an anvil with spaced-apart wedges disposed adjacent a backing plate, and the spaced-apart wedges have respective chamfers that contact legs of the staple and guide the legs away from each other. A driver blade is movable between the spaced apart wedges and pushes against a staple crown. As an actuator pushes the driver blade between the wedges, the staple is being pushed over the wedges. The actuator retracts the driver blade from between the spaced-apart wedges substantially independent of a biasing force pushing the spaced apart wedges against the backing plate.

Abstract: Stapling device (1) for stapling a workpiece (23), typically in the form of a sheaf of paper. The stapler (1) includes a support base (3) and a stapling unit (2) connected by a connecting piece (4) in a moveable manner. The stapling unit has a stapling magazine (6) in which staple blanks (24) are stored. A driver (7) is provided that drives the stapler so as to perform a stapling operation, and during which operation the workpiece is stapled. The support base is provided with an anvil (10) on which the workpiece is placed and against which stapling is carried out; the staple being secured in the workpiece with an orientation such that its longitudinal direction (T) is perpendicular to the longitudinal direction (L) of the stapler, whereby the connecting piece (4) extends along only one long side (21) of the stapler.

Abstract: The present invention is to provide a staple cartridge that can offset any discrepancies when mounting a staple cartridge, even if staples are slightly offset to check the occurrence of stapling defects. The staple cartridge 100 of the holding means 200 which is equivalent to the cartridge holder disposed as either a body separate to the stapler unit 300 or unitized thereto, actuates the staple feeds means 202. Even if the position of the staple pulled out from the staple cartridge is offset, this action corrects the offset to correctly set the staple at the driving position thereby enabling it to check stapling defects that occur because of mis-positioning of the staple set position.

Abstract: A motor-driven stapler is disclosed which comprises a table (100) arranged as opposed to a staple drive portion for driving a staple and provided movably up and down on a stapler body, and a driver for driving a staple from the staple drive portion to sheets of paper when the table (100) has been moved to press the sheets of paper against the staple drive portion. The table (100) is moved up and down by allowing the table (100) to rotate about axles (27) that are provided on the side plate portions (24, 25) of the frame (12) of the stapler body (10).

Abstract: An electric stapler capable of handling multiple sheets of paper. A motor-driven pair of wheel gears turn a swing arm having a symmetrical structure for driving a staple firing assembly and a clinch mechanism, thereby applying large pressure uniformly on staples. The clinch mechanism bends staple legs in different directions so that they do not overlap each other, preventing the clinched part of paper from increasing in the thickness of the stacked paper.

Abstract: A stapler anvil and method for clinching a staple is disclosed. The anvil includes a body having a well. The well has an axis extending between the legs of a staple and is defined by a first surface having a first portion along which the first leg of the staple is directed as the staple is being clinched, and a second portion extending substantially at an angle relative to the first portion to direct the second leg of the staple at least partially away from the axis as the staple is clinched. The well is further defined by a second surface spaced from the first surface. The second surface is configured to redirect the second leg of the staple at least partially back toward the axis after the second leg has been directed at least partially away from the axis by the second portion of the first surface.

Abstract: A staple driver (9) is provided, which is adapted to be mounted in a stapler for driving staples into a sheaf of papers (11) in order to drive, in a striking motion, the legs of a U-shaped staple (10) through the sheaf of papers (11). The driver (9) has a plate-shaped portion (13) with an edge surface (14) which is arranged, in the striking motion, to be applied and pressed against the web portion of the staple (10). The staple driver (9) has pointed projections (12) which are arranged to engage, in the striking motion, with the web portion of the staple (10) in front of the legs of the staple. The edge surface (14) of the driver (9) extends in its longitudinal direction along an outwardly curved arc.

Abstract: A motor-operated stapler is disclosed which, when a bundle of sheets to be stapled is thin, prevents staple leg portions once inserted through the bundle of sheets from again piercing through the sheets bundle and which, in the case of a thick bundle of sheets, bends staple leg portions sufficiently to staple the bundle of sheets to a satisfactory extent. In the motor-operated stapler, a clincher base which carries a bundle of sheets thereon is supported by a housing of a magazine which pushes out a U-shaped staple downward, the bundle of sheets is pinched by both the clincher base and the magazine, the U-shaped staple is pushed out from the magazine into and through the bundle of sheets, and a pair of leg portions of the staple thus projected from the bundle of sheets are bent by a pair of clinchers installed on the clincher base.

Abstract: A driver unit of a vertically slidable type is constructed by mounting a staple cartridge to a cartridge holder so as to freely slide in a vertical direction, and by urging the staple cartridge toward a clincher unit opposed thereto by a spring. When a clincher sleeve has descended to push the staple cartridge, the staple cartridge will move up and down in parallel, and accordingly, a relative angle of a clincher to a driver plate will not change.

Abstract: A stapler includes a base having a top surface, a bottom surface, and an anvil. The stapler further includes a paper guide coupled to the base and movable relative to the anvil between a first substantially locked and immovable position and a second substantially locked and immovable position, without requiring access to the bottom surface of the base. The paper guide includes a body portion supported on the top surface of the base, and a locking member coupled to the body portion and operable to substantially lock and unlock the body portion. The locking member is preferably a lever movable relative to the body portion and having a projection engageable with a ramped surface on one of the body portion or the base to lock the paper guide relative to the base.

Abstract: A stapling device for automatically binding a set of sheets is formed of a needle driving unit for driving a needle in the set of the sheets; a bending unit for bending the driven needle; two pairs of front and rear guide shafts for supporting the needle driving unit and the bending unit and guiding movements of these units in a sheet width direction; and moving shafts for moving these units along the guide shafts in the sheet width direction. By disposing each moving shaft between the front and rear guide shafts, each unit can be moved in the sheet width direction stably and smoothly, and the entire device can be structured small. Also, in at least one of the units, a small space is formed for a moving mechanism for at least one of needle driving device and bending device in a sheet thickness direction, to thereby achieve a further miniaturization of the entire device.