Abstract: A driver unit for an electric stapler comprises: a frame; a driver support member vertically movably mounted on the frame; a driver having a plate-like shape, fitted to the driver member such that the driver is vertically slidable in a predetermined range with respect to the driver support member; a driver hoist mechanism for driving the driver support member, driven by a motor to lower from an upward standby position to eject a staple to clinchers arranged right below the driver; and a vertical position adjusting mechanism provided between the driver support member and the driver, for adjusting a vertical position of the driver with respect to the driver support member.

Abstract: A nail holding and driving tool for driving a nail into a structure. The tool includes a body member having opposite first and second ends and a bore therethrough extending between the first and second ends of the body member. The second end of the body member is inserted into an attachment band of a holding member. The holding member has a pair of resiliently deflectable holding arms outwardly extending from the attachment band of the holding member. The holding arms are designed for holding a nail therebetween. A shaft of a driver member is inserted into the bore of the body member through the first end of the body member. The driver member also has a head portion which outwardly extends from the first end of the body member.

Abstract: In a fastener-driving tool comprising a housing structure and a magazine, a structure fixed to the nosepiece is adapted to confine one of two sides of a leading portion of a strip of fasteners so as to guide the leading portion of the strip along fastener-guiding surfaces of the fixed structure. Moreover, a structure hinged to the nosepiece is adapted to be hingedly moved between an operative position and inoperative positions and is adapted when disposed in the operative position to confine the other side of the leading portion of the strip so as to guide the leading portion of the strip along fastener-guiding surfaces of the hinged structure. The hinged structure includes a polymeric cover hinged to the nosepiece, a holding member, and two wear guards, which are spaced one above the other, which are made of metal, and which are mounted so as to define the guiding surfaces of the hinged structure.

Abstract: A setting tool for driving fastening elements (12) includes a transport device (7) for strip-shaped magazines (11) containing the fastening elements (12) each spaced apart at a dimension (A) from one another. Pivotal transport levers (13, 22) are arranged within the transport device (7) for moving the magazines (11). One of the transport levers (22) is displaceable by a distance corresponding at least to the transporting path of the other transport lever (13). With the transport device (7) it is possible to insure different transport paths.

Abstract: A nail engaging device includes a nail input chamber which is connected between the barrel and the nail box, and a plug is connected below the nail input chamber which has a plurality of holes. A cover is pivotally mounted to the barrel and has a recess defined in the inside thereof so that a front sub-pushing member and a rear sub-pushing member are pivotally engaged with the recess of the cover. A main pushing member is engaged with the holes of the nail input chamber so as to engage with the first nail. The rear sub-pushing member has a first stop extending from the top thereof and the front sub-pushing member has a second stop extending from the top thereof so that the rear sub-pushing member can be pivoted to adapt the different thickness of the two types of nails.

Abstract: A pusher piston shifts a nail by a predetermined distance along an eject hole before a driver blade drives the nail. In this case, the predetermined shifting distance of the pusher piston satisfies a requirement that the tip of the nail protrudes out of the eject hole while the nail itself is not removed off a band member. Thus, the nail is surely held by the band member even when the nail is positioned at the pushed-out position where the tip of the nail protrudes out of the eject hole.

Abstract: A pneumatic nailing machine for driving a nail to a work, comprising: a main unit having a body; a cylinder disposed in the body of the main unit; a nose portion being hollow and continously extending from the main unit, the nose portion having a driver guide hole; a piston slidably inserted in the cylinder; and a driver coupled to the piston in the cylinder, and being slidable between a uppermost position and a lowermost position, wherein the driver and the piston are driven by high pressure compressed air supplied into the cylinder, and the nail supplied to the nose portion is hammered by the driver, the driver including, a base portion positioned near the piston and having a relatively large diamter so as to be substantially equal to an inner diameter of the driver guide hole, wherein the base portion is fitted into the driver guide hole when the driver reaches the lowermost position, and a tip end portion has a diameter so as to be smaller than an inner diameter of the nose portion, wherein the driver is

Abstract: An apparatus for feeding rivets for riveting guns comprises a first duct for transporting the rivets to a front arming device of a riveting gun; the first duct is connected to a source of compressed air supplying the compressed air at a first determined pressure, and a first pressure reducing element to impart the air flowing along the first duct a second determined pressure, and a first solenoid valve to control the outflow of compressed air through the first pressure reducing element; it also comprises a second duct connected at one of its ends to a source of compressed air and with its other end connected to a portion of the first duct positioned in proximity of the front arming device, along the second duct flowing compressed air at the first determined pressure higher than the second determined pressure which flows inside the first duct.

Abstract: A screw feed and driver assembly which may constitute a part of a screw driving tool of the type having a prime mover, a speed and torque determining gear assembly and a clutch; which can constitute an accessory for a clutch containing manual feed power screw driver; and which, combined with a clutch, can comprise an accessory for a standard manual power drill. The screw feed and driver assembly comprises a feed housing with a slide body mounted therein and shiftable between forward and rearward positions. The slide body is biased to its forward position. The slide body receives a strip bearing screws. A contact foot is mounted on the slide body and shifts the slide body rearwardly when pressed against a workpiece. A screw driver, affixed to the clutch, extends into the slide body. The slide body contains a pawl and feed sprocket assembly. The sprocket engages notches in one edge of the screw bearing strip.

Abstract: A unitary fastener collation tube for retaining a plurality of fasteners useable in a stand-up fastener driving tool. The fastener collation tube includes an elongated body member having a channel having a substantially T-shaped cross section for receiving the fasteners arranged side by side therein. At least one end of the elongated body member includes a resilient fastener retaining member engageable with an endmost fastener of the plurality of fasteners so as to retain the plurality of fasteners in the channel of the fastener collation tube, whereby the plurality of fasteners retained in the fastener collation tube are releasable from the fastener collation tube when the resilient fastener retaining member is disengaged from the endmost fastener.

Abstract: A setting head for the installation of fastener elements having a head and shaft into a pre-apertured workpiece. The setting head has at least three holding fingers, with each holding finger initially centering, aligning, and positioning the element in the setting direction, both at the head and also at a distance from the head along the shaft.

Abstract: A staples adjusting device includes two boards received in the magazine and one of the two boards has a recess defined in the inside thereof, and a concavity is defined in the bottom of the recess. An adjusting plate is movably received between the two boards and has two inclined slots defined in two ends thereof, each of the slots has a boss of an actuating member extending therethrough. A protrusion extends from the actuating member and a rod extends through the protrusion. The rod has a stop extending radially outward therefrom and two springs are mounted to the rod and biased between the stop and the protrusion, and between the inside of the concavity and the protrusion so that when pushing the rod to compress the springs, the adjusting plate is moved to push the staples contacting against the inside of the magazine by moving the two bosses in the two inclined slots so that there will be no gap defined between the staples and the inside of the magazine.

Abstract: Projected portions 17, 18, 19 are formed at three positions in the middle and on left and right ends of the front surface of a driver 13 of a staple hammer. The width of the projected portion 18 in the middle is smaller than the distance between both leg portions S.sub.3, S.sub.4 of a staple S, and the projected portion 18 is not in contact with the upper surfaces of bends S.sub.1, S.sub.2 of the staple S. Further, the distance between the projected portions 17, 19 on both left and right ends is slightly smaller than the total width of the staple S. The projected portions 17, 19 are located above the bends with radii, and are not in contact with the bends. At the time of hammering, the projected portion 18 in the middle impinges the middle portion of the top surface of the staple S, allowing both leg portions S.sub.3, S.sub.4 of the staple S to ground upon the object to be hammered so as to be expanded.

Abstract: In a roofing washer-dispensing and fastener-driving machine, which has a fastener-feeding tube, a fastener-engaging pawl is mounted operatively to the tube, near its upper end. The pawl is pivotable between a normal position wherein the pawl is arranged to engage a fastener dropped into the tube so as to prevent the fastener from dropping through the tube and a pivoted position wherein the pawl is arranged to disengage from the fastener. An elongate rod is arranged to pivot the pawl from the normal position into the pivoted position when the machine is operated.

Abstract: A unitary fastener collation tube for retaining a plurality of fasteners useable in a stand-up fastener driving tool. The fastener collation tube includes an elongated body member having a channel having a substantially T-shaped cross section for receiving the fasteners arranged side by side therein. At least one end of the elongated body member includes a resilient fastener retaining member engageable with an endmost fastener of the plurality of fasteners so as to retain the plurality of fasteners in the channel of the fastener collation tube, whereby the plurality of fasteners retained in the fastener collation tube are releasable from the fastener collation tube when the resilient fastener retaining member is disengaged from the endmost fastener.

Abstract: A twin line-guide adapter easily affixed to the lower narrow front face of popular hand-held stapling guns. The two independent spring-loaded line-guides stabilize flexible, loose, linear entities such as wires, cables, cords or braids. This restraint is accomplished automatically by either line-guide extending or retracting, compensating for the tipping or slipping of the stapling gun, preventing damage to the linear entity from either leg of the driven staple. Each or both line-guides can be quickly thumbed to hold-up detent position or equally fast, shifted down for line-guide function. Both up on detent provides for immediate flat-entity stapling with neither wear on, nor interference by, the adapter.

Abstract: Apparatus for driving fastening elements (9), such as nails, bolts, clips and the like, into a receiving material includes a magazine (3) extending laterally outwardly from a guide (1). The magazine (3) holds a carrying strip (10) for the fastening elements (9) and a transport slide (8) which, in cooperation with the magazine, can be shifted parallel to the driving direction of the apparatus. The magazine (3) has a housing (31) and a guide channel (37) opening into a transport channel (11) in the guide (1). The guide channel (37) is formed by two laterally spaced guide rails (5, 6) each with a surface facing the other and profiled with tooth-shaped projections having tooth flanks of different lengths with the flanks facing the transport channel (11) being shorter. A first guide rail (5) can be displaced away from a second guide rail (6) parallel to the length of the guide channel (37) by the transport slide (8). The transport slide (8) interacts with a control cam (53) located on the first guide rail (5).

Abstract: A stand-up fastener driving tool including a rotary driver having a rotatable shaft with a fastener driving member disposed on a distal end thereof and disposed within telescoping upper and lower tubes, wherein the lower tube has a nose-piece with an opening for retaining a fastener therein. The fastener driving member is extendable toward and away from the nose-piece upon contraction and extension of the lower and upper tubes. A plurality of fasteners are retained side by side in a magazine of the tool, and are individually releasable therefrom upon contraction and extension of the upper and lower tubes. A feed tube connects the magazine to the nose-piece, and includes a magnetized wall portion for capturing and retaining fasteners fed from the magazine.

Abstract: A magazine structure for a power stapler includes a magazine with a cover slidably connected thereto, an end board disposed to the magazine and having an elongate opening defined therethrough, a stopper board disposed to the end board and having a recessed portion and a slot defined in a bottom defining the recessed portion. A guide plate received in the slot and has two elongate apertures transversely defined therethrough, two pins respectively extending through the stopper board and the two elongate apertures so that a front side of the guide plate maintained to protrude in the recessed portion when an impact plate of the stapler actuating to the guide plate.

Abstract: A fastener driving machine includes a machine body, a nose structure, a magazine, a guide member, a feeder and grooves. The nose structure is fastened to the machine body and ejects fasteners. The magazine is made of resin and accommodates rows of collated fasteners. The guide member, disposed in the magazine, is made of metal and has a pair of opposing surfaces. The feeder feeds the collated fasteners to the nose structure while the collated fasteners are guided between the opposing surfaces of the guide member. The grooves support the guide member in the magazine so as to allow the guide member to longitudinally expand or contract with a change in temperature.

Abstract: A fastening machine (1) includes a guide block (11) with a rivet delivery passage (12). Rivets (17) are supplied from a source via a tube (22) and are delivered through a rivet supply passage (20) to the rivet delivery passage. The rivet delivery passage includes a plurality of spring-loaded balls (60) on the inside thereof to maintain the heads of the rivets in alignment with a punch (16).

Abstract: An attachment for a nailing machine in which a nose part drives out a nail having a nail head portion and a nail shaft portion, and in which a driver repeatedly strikes the nail, includes: a holder removably attached to the end of the nose part; nail guide members oppositely disposed on the end of the holder with respect to the center axis of the nose part, each of the nail guide members including, a first guide surface provided on an inner side thereof increasing in diameter in a taper form toward the holder, for guiding the nail head portion driven out from the nose part, a second guide surface provided continuous with the first guide surface, an inner diameter of the second guide surface being the same as or smaller than the diameter of the nail shaft portion, wherein the entire circumferential surfaces of the nail head portion and the nail shaft portion are guided by the first and second guide surfaces, and an outer surface tapered such that the outer surface narrows toward the end edge of the second guid

Abstract: A fastener driving tool capable of locating a preformed hole in a first workpiece and driving a nail therethrough and into a second workpiece to attach the first workpiece to the second workpiece. The tool comprises a body having a main portion and a handle portion, a guide body, a drive track in the guide body, a driver axially shiftable in the drive track, a fastener containing magazine, a magazine cover, a manual trigger, and a trigger enabling safety. The magazine cover is supported by the guide body and the handle portion of the tool and contains the magazine. The magazine communicates with the drive track and is supported by a slide captively mounted on the guide body and axially shiftable therealong.

Abstract: A fastener driving tool includes a fastener driving device for driving fasteners one after another. The fasteners are connected in series to each other to form a strip of fasteners. A fastener feeding device is provided for feeding the fasteners one after another to a driving position by the fastener driving device. The fastener feeding device includes a first claw and a second claw positioned forwardly of the first claw in the feeding direction of the fasteners. A drive device is provided for reciprocally moving each of the first and second claws between a frontmost position and a rearmost position. A stroke adjusting device is operable to provide difference between the stroke of movement of the first claw and the stroke of movement of the second claw, so that the stroke of movement of the second claw is smaller than the stroke of movement of the first claw.

Abstract: A staple magazine for a stapler includes an outer U-shaped frame, and an inner U-shaped frame mounted within the outer U-shaped frame thereby forming two grooves at two sides between the outer and inner U-shaped frames, characterized in that the inner U-shaped frame has two lateral side walls, a large rectangular stop plate and a small rectangular stop plate, the large and small rectangular stop plates being formed at a front end of the inner U-shaped frame and making an angle of 90 degrees with respect to the side walls, the stop plates being of different width and spaced apart by a vertical slot.

Abstract: A roofing gun attachment for dispensing tin tags includes a base, a supply chamber mounted on the base which receives a cartridge containing a plurality of stacked planar tin tags, a shuttle slidably disposed within the base for individually displacing the tin tags from a feeding station located below the supply chamber to a nailing station where the tin tag is pierced by a nail discharged from a nailing gun, and a pair of cam arms each connected with a slide member for moving the shuttle between the feeding station and the nailing station when the nailing gun is pressed against a nailing surface and lifted therefrom. The supply chamber includes an access door which allows the tin tag cartridge to be easily replaced and further includes a manually-actuated spring-loaded plunger which biases the tin tags toward the feeding station.

Abstract: A device for driving inserts into pieces of sheet metal includes a punch having a longitudinal axis of symmetry, a thrust surface and a through hole extending along its longitudinal axis which constitutes a supply duct for the inserts. The through hole extends through the thrust surface. A thrust rod applies a driving force to the inserts to move them into position in front of the thrust surface of the punch. The thrust surface drives the head of the insert into a piece of sheet metal through a hole while plastically deforming the periphery of the hole which interfaces with the head.

Abstract: The stapler includes a staple advancing system for applying an advancing force to a plurality of "U" shaped staples (19); a guide (16) for maintaining said plurality of "U" shaped staples (19) parallel to each other along a feed axis, said guide (35) having a channel cross section (33) including a horizontal top portion, substantially perpendicular to said feed axis, and two semi-vertical portions (37) below said horizontal top portion, each having a plane oriented downwardly inward at such an angle which does not cause plastic deformation of said "U" shaped staples (19) inserted in said guide (35), said guide (35) having an open end wherein said semivertical portions (37) merge with vertical portions (39) having walls which are substantially vertically aligned; a lower aperture (6) aligned along said feed axis with said vertically aligned walls; and a displaceable staple ejector (2) without displacing an adjacent "U" shaped staple (19).

Abstract: A fastening machine (1) has guide block (11) with a rivet delivery passage (12). Rivets (17) are supplied from a source via tube (22) and are delivered to the rivet delivery passage (12) by a rivet supply passage (20). The head of the rivet (17) is engaged by spring-loaded balls (60) to hold the rivet (17) in alignment with the rivet delivery passage (12) and a punch (16). When a limit switch (30) detects the presence of a rivet (17) in the rivet delivery passage (12), the punch (16) is advanced and the rivet (17) is releasably supported by the balls (60) and secondary balls (60A) as it is advanced to work pieces to be secured together.

Abstract: A machine for the attachment of buttons, rivets or the like, preferably to articles of clothing, which buttons, rivets or the like consist of an upper portion and a lower portion, a material held between an upper clamping jaw and a lower clamping jaw being punched by actuation of a ram, and, after movement of a slide having an upper tool and a lower tool, the button portions disposed therein being positively connected to one another by ram actuation by virtue of the upper and lower tools being brought towards one another. In order to be able to carry out the punching of the article of clothing which is necessary before the attachment of the object, using the same machine and without changing the position of the article of clothing, an attachment tool (36) at the end of the ram is disposed, in the hole punching disposition (FIG. 3), in coaxial alignment with a hole punching tool (26).

Abstract: A pawl-type assembly for pulling a coiled strip of nails form a canister-type magazine of a nail driving tool and introducing the forwardmost nail of the strip into the drive track of the tool to be driven by the tool driver into a workpiece. The guide body of the tool defines the drive track and has a fixed wall and an openable wall forming there between a passage for the strip of nails from the canister-type magazine to the drive track. The pawl is shiftable by the piston rod of an air cylinder between a rearward position wherein it engages a nail near the forwardmost nail of the strip and a forward position wherein the nearby forwardmost nail of the strip is located in the drive track ready to be driven. The pawl is provided with ledge-like surfaces which, when the pawl is in its forwardmost position, engage the fixed wall of the guide body in such a way as to prevent pawl displacement during the fastener driving portion of the tool cycle.

Abstract: An adapter for a fastener driving tool for controlling depth penetration of a fastener fired from the tool, comprising a lip portion adapted for attachment to a firing portion of the fastener driving tool and extending downward from the firing portion and substantially across to form a recess. The recess, in corresponding alignment with the firing portions engages the fastener when the fastener is fired from the fastener driving tool to allow for a spacing between the fastener and material.

Abstract: The disclosure presents a guide mechanism for a nailing machine in which series-connected nails are fed from a magazine to a nose portion and the foremost nail of the series-connected nails is driven from a nail ejecting outlet of the nose portion by a driver.

Abstract: A staple driving system for driving insulated staples to secure an object to a base which includes staples having a generally U-shape including parallel legs with free end portions. A molded body formed of insulating material is located on the free end portions of each staple and is slidable with respect thereto when the staple is driven. The molded body has a generally semi-circular recess formed therein between the legs of the staple for surrounding and engaging a cable, wire, or the like. The molded insulating body of one staple is connected by frangible connections to an adjacent molded body of an adjacent staple so that the staples can be shipped and used in a strip. A staple gun having a magazine formed to receive and guide the insulated staples is also provided along with a pusher shaped to cooperate with guide ribs on the magazine while engaging the molded body and the bight of the last staple of a strip in the magazine to accurately guide the staples in the magazine during operation of the system.

Abstract: A cassette assembly for a stapling mechanism includes a cassette secured to the nose piece of the stapling mechanism and having a number of slots formed in one side for retaining nails. The cassette includes a groove and one or more notches formed in the bottom for engaging with a bar and the projections of the bar so as to secure the bar in place. The bar includes a longitudinal flange extended upward from one side for engaging with and for stably retaining the nails so as to prevent the bar from being easily worn out and so as to increase a working life of the cassette.

Abstract: An apparatus for delivering fasteners, such as nails, screws and rivets from a supply source to an automatic fastener driver comprises an elongated flexible wire helix whose pitch is such that fasteners can be supported by their heads between adjacent convolutions. One end of the elongated helix is coupled to a vibratory bowl feeder that feeds individual fasteners in a desired order and orientation into a holding station. The opposite end of the wire helix is positioned over an inlet chute leading to a fastener holding chuck and the distal end of the helix is adapted to be driven through 360.degree. by an indexing motor upon each actuation of the fastener driver. In this fashion, for each nail that is dropped from the distal end of the helix into the driver's inlet chute, another nail is picked up at the holding station and advanced in incremental steps along the length of the helix.

Abstract: A fastener driving tool includes a portable housing defining a fastener drive track. A magazine assembly is carried by the housing for receiving a supply of fasteners and for feeding successive fasteners in a feeding direction into the drive track. A ferrous fastener driving element is mounted within the drive track for movement through repetitive cycles, each of which includes a fastener drive stroke in one direction in which a fastener within the drive track is engaged and moved outwardly of the drive track into a work piece, and a return stroke. A drive piston is operatively connected with the fastener driving element for movement therewith. An actuating mechanism is carried by the housing and is constructed and arranged to initiate movement of the fastener driving element through a fastener drive stroke.

Abstract: A magazine system of a stapler, includes a main body, on its top side being provided with a gliding path outside the middle between both sides, the gliding path in turn symmetrically on both sides being provided with several grooves to accommodate U-shaped staples and straight nails of various sizes; a magazine case, surrounding the outside of the main body, leaving a gap on both lateral sides and on the top side; a pushing device, which is movable in the gap between the magazine case and the main body, surrounding the main body from above, and which by a spring pushes the staples or nails towards the ejector of the stapler; a movable part, which is connected to the main body and can be tilted away by a hinge. When using the stapler, the parts interact such that the staples or nails move along the main body and its gliding path and are driven by the driving force of the pushing device towards the ejector.

Abstract: The indirect-firing apparatus includes a combustion chamber for a cartridge (62), a trigger for igniting the cartridge, a barrel, an inertia block in the barrel, an anchor guide (7) designed to receive an anchor, a shuttle (34) in the anchor guide (7) mounted for movement from an anchor loading position to a position for firing and driving of the anchor, mechanisms (63, 11, 46) for displacement of the shuttle from one position to the other, and a barrel holder (61) for concomitantly controlling the closure of the combustion chamber (3) and means for displacement of the shuttle (34). The mechanisms (63, 11, 46) for displacement of the shuttle (34) are arranged so as to drive the shuttle (34) beyond the firing position (25). Damping components (33, 38), when the shuttle (34) has reached its firing position (25), absorb the action of the displacement mechanisms (63, 11, 46).

Abstract: This invention relates to a staple confiner in a stapler using all kinds of U-shaped staples of different sizes. It comprises: An upper support, a lower support, the contact surface between the upper and the lower support having a guiding groove, into which the staples inside the magazine can be inserted to be ejected; two confining elements, which are mounted on a hinge on the upper support, to guide all kinds of U-shaped staples of different sizes; and a flexible element, which presses from above on the confining elements, such that the front ends of the confining elements normally press down on the lower part of the guiding groove.

Abstract: A real-time fastener measurement system includes an anvil (10) having a striking surface (16) that engages a fastener as it is upset. Three proximity sensors (20) are disposed at 120.degree. intervals around a striking surface of the anvil. A computer system (110) reads the electronic signals produced by the proximity sensors just after the fastener has been upset and converts the signals to digital values. The computer stores a piecewise linear function that has been predetermined for each sensor and uses the function to convert the digital values of the proximity sensor to fastener head height.

Abstract: A device for storing and dispensing an array of staples is particularly adapted for dispensing staples having a non-linear bight and two spaced-apart legs depending therefrom, and material weakening nicks in the regions of the bight adjacent the legs. When the staple is dispensed from the device, the legs are bent into a plane approximately parallel to the plane of the bight. When it is desired to remove the staple, the bight is gripped and rotated until it breaks away from the legs.

Abstract: There are provided improvement in a system for handling components which have a stem and a head at one end thereof (such as rivets) and in particular an orienting device for rivets having a relatively short stem wherein the orienting device comprises a base having at least at a pair of co-axial grooves formed for handling different size components, a first one of the grooves having a generally U-shaped outline with a base and a first pair of arcuate walls extending upwardly therefrom, a second one of the grooves being at least partially defined by a second pair of arcuate walls extending upwardly and outwardly from a terminating point of the first pair of opposed walls, the grooves having at least one step formed therein.

Abstract: A magazine having a first side plate and a second side plate connected in parallel between the nail nozzle and handle of a power nail gun for carrying a bar of nails in a longitudinal sliding space defined between the side plates, and a follower plate mounted in the longitudinal sliding space to push the loaded bar of nails toward the nail nozzle of the power nail gun, wherein the follower plate is supported on two compression springs, the compression springs being mounted in a respective chamber on the second side plate at different elevations, each compression spring having a front end connected to the follower plate and a rear end fixedly secured to one end of the second side plate remote from the nozzle plate.

Abstract: A fastening element setting tool includes a housing (1), an axially displaceable guide sleeve (2) located within the housing, a bolt guide (3) extending forwardly from the guide sleeve, and a receiving sleeve (4) partially laterally enclosing and axially displaceable relative to the bolt guide (3). The receiving sleeve (4) and the bolt guide (3) are telescopically displaceable relative to one another by an amount in the range of 3 to 5 times the outside diameter of the bolt guide. A protective sleeve (5) at least partially laterally encloses and is axially displaceable relative to the receiving sleeve (4). In the course of its axial displacement relative to the receiving sleeve (4), the protective sleeve (5) strikes against a leading end face (1a) of the housing (1) and prevents the full displacement of the guide sleeve (2) into a position ready for ignition of the tool.

Abstract: A percussion tool comprises a cylinder 6 provided in a percussion tool body 1, and a piston 8 accommodated in the cylinder 6 and slidable in an axial direction of the cylinder pressure of pressurized air. A nail guide 10, provided at a front end of the percussion tool body 1, is formed into a hollow cylindrical shape capable of loading a nail 12 therein. A retaining region 15 is formed on an inner wall of the nail guide 10. A permanent magnet 19 is disposed in the retaining region 15 for magnetically holding a shaft of the nail 12 loaded in the nail guide 10. A stepdown region 14 is formed on the inner wall of the nail guide 10 inwardly than the retaining region 15 in an axial direction of the nail guide 10, so that the loaded nail 12 is aligned in parallel with a nail hitting direction. A slant surface 16 smoothly connects the stepdown region 4 to the retaining region 15.

Abstract: A stapler includes a staple magazine rotably connected to an operating assembly. The operating assembly rotates around a shaft in response to pressure applied by a user to a operating handle. The staple magazine includes a plurality of staple clips capable of holding different size staples. The stapler includes means for determining a desired staple size. The staple magazine is rotated by the user to select a desired size staple. A stopper assembly, slidably mounted on a base of the stapler, is positioned by the user to limit and guide a front edge of a stack of papers being stapled. The means for determining a desired staple size and the stopper assembly are free from interference with each other. The stopper assembly is constructed so that a portion contacting the front edge of the stack of papers remains perpendicular to the front edge during a stapling operation.

Abstract: A tin tag dispensing apparatus for a nailing gun includes a support member having a tin tag dispensing groove, a shuttle slidably disposed within the support member, a tube receptacle containing a plurality of stacked tin tags, a slide member slidably mounted on the tube receptacle, a linkage assembly connecting the slide member with the shuttle, and a mounting plate for connecting the apparatus to the nailing gun. When the gun is lifted, the slide member slides upward along the tube receptacle and causes the shuttle, through the linkage, to engage and displace a single tin tag resting in the tin tag dispensing groove to a nailing station where it is retained until pierced by a fastener discharged from the nail gun.

Abstract: The present disclosure relates to self-piercing fasteners, such as studs, bolts or nuts, the method of attaching such fasteners to a panel and fastener installation apparatus, including the installation head and die button. The fastener includes a self-piercing and riveting annular wall which is driven into a panel supported against a die member by the installation head. The die member includes an annular die cavity surrounding a central projecting die portion which is telescopically receivable in the free open end of the fastener annular wall. The free end of the fastener annular wall includes a piercing surface which mates with a piercing surface at the outer edge of the projecting die portion to pierce a slug from the panel.

Abstract: A rotary hopper includes a door, which is pivotally mounted on the main mounting plate for pivoting about a vertical axis, having a transparent element to enable viewing of the interior of the rotary hopper. The pivotally mounted door enables easy access to the interior of the hopper. On the opposite side of the main mounting plate from the door, a shaft is supported for rotatably supporting a cone having a gauging ring with gauging grooves mounted thereon. A recess in the cone, the interior of the gauging ring, and the interior of the transparent element on the door form a reservoir in the rotary hopper for the fastener elements. On the side of the main mounting plate having the door, the main mounting plate has a vertical groove to receive the fastener element in each of the gauging grooves when each of the gauging grooves is aligned therewith during rotation of the gauging ring. The vertical groove communicates with a setting station of an attaching apparatus.