Abstract: An installation tool and related methods are provided. The tool can pull a strip of collated fasteners along a collated fastener path to a guide, where individual fasteners are sequentially separated from the strip and advanced into a workpiece. The tool can include a tension feeder located downstream of the guide. The tension feeder is configured to apply tension to the strip between the guide and a leading end of the strip. The tool can include a driveshaft configured to attach to a conventional drive tool chuck or a drive tool having hexagonal type drive components. The guide can be one piece and replaceable, with a guide body and a guide head. A strip slot can be defined in the same to align a fastener head with a backstop and facilitate entry of a fastener shank in a feed slot. Related methods of use are provided.

Abstract: The present disclosure provides a mechanically-actuated tool for cutting a tissue graft having a hollow core and methods for use thereof. A portion of a biological structure, such as a nerve, is attached to the hollow core to form an implantable neural graft assembly. The tool has a cutter mechanism and a grasper mechanism. The grasper mechanism has one or more component(s) that open and close via an actuation mechanism, like a handle, and rotate via a controller component, like a rotatable wheel. The cutter mechanism may be a cutting tube component that harvests the tissue graft. The tool may also have an ejector mechanism to remove the tissue graft as part of the implantable neural graft assembly. Such devices and methods are particularly suitable for treating neuromas and other neural regeneration procedures.

Abstract: A flexible friction driving device has a driving gear, a driven gear, a hexagonal sleeve, a damping ring, an elastic ring and two bearing seats, wherein the driving gear is mounted below the driven gear and engaged with the driven gear; the hexagonal sleeve is disposed between the two bearing seats, and the damping ring and the driven gear are successively sheathed on the hexagonal sleeve; a cap and the elastic ring are placed in an opening at one end of the driven gear; the elastic ring compresses the damping ring onto a cylindrical outer surface of the hexagonal sleeve; power from a motor is transferred to the driven gear by the driving gear; and, the power is flexibly transferred to the hexagonal sleeve by the friction of the inner holes of the damping ring and the driven gear against the cylindrical outer surface of the hexagonal sleeve.

Abstract: A mandrel-pulling distance sensing assembly of an electric rivet gun is mounted in a barrel of a housing and has a stationary seat, a moving seat, two magnetic elements separately fixed on the stationary seat, and a Hall effect sensor fixed on the moving seat. The moving seat is driven by a driving assembly of the electric rivet gun and is movable relative to the stationary seat. While the Hall effect sensor moves along with the moving seat between the two magnetic elements, the Hall effect sensor detects a changing magnetic field and produces and outputs a changing voltages to a control unit to allow the control unit to operate the driving assembly according to the changing voltages. Thus, the moving seat can be accurately positioned and moving ranges of a snapping device that is driven by the driving assembly can be accurately controlled.

Abstract: An expanding tool comprising: an actuator comprising a cylindrical housing that defines an actuator housing cavity; a primary ram disposed within the actuator housing cavity, the primary ram defining an internal primary ram cavity; a secondary ram disposed within the internal primary ram cavity; a cam roller carrier coupled to a distal end of the secondary ram; a drive collar positioned within a distal end of the actuator housing cavity; a roller clutch disposed within an internal cavity defined by an inner surface of the drive collar; a shuttle cam positioned between the roller clutch and a distal end of the primary ram; an expander cone coupled to the primary ram; and an expander head operably coupled to the drive collar. When triggered, the actuator first rotates the expander head and then the actuator expands the expander head.

Abstract: A blind rivet fastening device in which a passage for collecting broken mandrels is provided other than on the axis of the motor. A large collection chamber is provided for broken mandrels. A collection chamber for broken mandrels is provided in front of a brushless electric motor in the axial direction. When the electric motor rotates, power from the electric motor is transmitted to a spindle positioned to the rear of the collection chamber via a second shaft positioned below the collection chamber. When the spindle rotates, a pulling head moves in the axial direction. The axial position of the pulling head is determined by detecting the rotation count of the electric motor. Forward rotation, reverse rotation, and stopping of the electric motor are controlled based on the operation of a trigger and the axial position of the pulling head. Excessive torque is avoided by clutches.

Abstract: The present invention discloses a one-hand-handled rivet gun, which has a handle seat with a through hole, a folding mechanism hinged to the handle seat and a pulling rod connected to the folding mechanism. The mentioned pulling rod is coated by a housing, and is equipped with a riveting gun tip assembly on the front end. A fixed sleeve is mounted on the front end of the housing of the pulling rod, and a guiding nipple is mounted on the front end of the fixed sleeve. The mentioned folding mechanism comprises two folding rod assemblies symmetrically mounted behind both sides of the rear end of the pulling rod, and the two folding rod assemblies include a front curved link and rear curved link hinged to each other. A handle cover is connected to the rear end of the rear curved link, and the front curved link is fixed to the pulling rod by the front end and hinged to the front end of the handle seat.

Abstract: A riveting tool contains: a body, a retaining post, and a pressing handle. The body includes an extending column, an accommodating cavity for accommodating the retaining post, one of plural adjusting heads selectively fixed into the accommodating cavity. The retaining post includes a movable clamping extension. The body also includes a grip and a returning spring for pushing the grip and the retaining post. The retaining post includes two recessed faces, the pressing handle includes two guiding pieces. Each guiding piece has a neck section, an arcuate section, and a reinforcing section. A curvature of the arcuate section is larger than that of the reinforcing section, such that when a distance between the grip and the pressing handle is expended to a maximum length, each guiding piece retains with the retaining post, and when the pressing handle is pushed toward the grip, each guiding piece pushes the retaining post.

Abstract: An electric drive for a processing tool, in particular for a rivet setting appliance, has an electric motor connected to an actuating element that is linearly displaceable in an axial direction. A damping element that acts in the axial direction is arranged between the electric motor and the actuating element for impact decoupling of the electric motor from the actuating element. As a result, sudden loads, for example if a rivet mandrel breaks during the blind rivet setting operation, are absorbed in a material-conserving manner.

Abstract: A hand-held rivet nut (rivet bolt) tool has a body, a sleeve, a positioning ring and a mandrel. The body includes a base and a pair of handles. The handles are respectively pivotally connected to two sides of the base. The sleeve is axially movably mounted through the base and includes an annular mounting groove. The positioning ring is seated in the annular mounting groove of the sleeve and includes an inner portion. The mandrel is rotatably mounted through the sleeve and includes an annular positioning groove allowing the inner portion of the positioning ring to engage therewith. The manufacturing process of the holding structure between the mandrel and sleeve is simplified because it only has steps of forming the annular mounting groove and then seating the positioning ring in the annular mounting groove, which increases production efficiency and reduces manufacturing time and costs.

Abstract: The invention relates to a tool connection for arranging a riveting tool on a riveting tool receptacle, having a contact surface arranged on the riveting tool for supporting the riveting tool on a supporting surface arranged on the riveting tool receptacle. In order to provide a tool connection for arranging a riveting tool on a riveting tool receptacle, by means of which a repetitive riveting operation can be carried out without damage and it is particularly simple to replace the riveting tool, it is provided that a journal is arranged on one of the riveting tool or riveting tool receptacle and a journal receptacle is arranged on the other of the riveting tool or riveting tool receptacle, the journal can be introduced into and removed from the journal receptacle and the riveting tool can be releasably locked to the riveting tool receptacle by a magnetic force.

Abstract: An electric riveter capable of rivet pre-pulling includes an operating unit, a controlling unit, a driving unit, and a clamping unit. The controlling unit controls the driving unit according to the way in which a user operates the operating unit, the clamping unit is driven by the driving unit to move between an initial position, a pre-pulling position, and a severing position. The operation method for the electric riveter entails: providing a rivet when the clamping unit is at the initial position; operating the operating unit in a first operation mode to move the clamping unit to the pre-pulling position and clamp the rivet; and operating the operating unit in a second operation mode to move the clamping unit to the severing position and sever the rivet. Accordingly, the rivet is prevented from falling off during the operation process, thereby enhancing ease of use of the electric riveter.

Abstract: A rivet setting device contains in a housing a receiving chamber in which a break-off rivet mandrel is situated after the setting operation. Arranged in this receiving chamber are two elongate magnets which leave free between them a space for the residual mandrel and which attract the residual mandrel from the holder for the rivet after it has been broken off and retain it. The holder for the residual mandrel can be moved with a transverse component in the device, with the residual mandrel being moved past a stripping element into a region outside the axis of the holder for the rivet. During the rearward movement of the residual mandrel holder, the residual mandrel is stripped off and remains in a collecting chamber.

Abstract: The method and device provided herein relates to the field of screwed joints for panels and, in particular, for sandwich panels used in aerospace applications. It relates to a method for attaching a headless rivet nut to a wall of such a panel. The method comprises: injecting a predetermined quantity of adhesive into a blind hole made in the wall of the panel; fitting the headless rivet nut onto a rivet nut setting tool, the rivet nut setting tool comprising a pierced anvil and a mandrel passing through the anvil, the mandrel being screwed into the rivet nut so as to press the rivet nut onto the anvil; positioning the headless rivet nut in the blind hole, the anvil coming to press against the wall of the panel; setting the rivet nut so as to squeeze the wall of the panel between the anvil and a flange formed by deformation of the rivet nut.

Abstract: A conventional blind rivet tool with modified nose housing, i.e., a rivet gun with replaceable and interchangeable nosepieces, facilitates feeding and setting of multiple diameters of blind rivets with substantially shortened exposed mandrel portions extending beyond the head flange of the rivet, all while maintaining blind rivet performance and reducing total installed blind rivet costs. A rivet with a reduced exposed mandrel protrusion relative to conventional and standardized mandrels can be enabled and more easily fed through the tool.

Abstract: This fastener driving device is equipped with an impact force applying device that repeatedly applies impact forces to a fastener; and a load cell that detects a reaction force acting on the impact force applying device. The impact force applying device stops the applying of the impact force to the fastener on the basis of a detection result of the reactive force.

Abstract: A single handle pulling riveting gun is disclosed. The single handle pulling riveting gun includes a body, a handle, a pulling rod, a grabbing mechanism, a riveting regulating mechanism, a first pin shaft, a second pin shaft, a third pin shaft and a moving piece. The riveting regulating mechanism cooperates with a front end of the body, the grabbing mechanism is set on a chamber of the riveting regulating mechanism; a rear end of the grabbing mechanism cooperates with the pulling rod.

Abstract: A handy riveter device includes a fastening screw, a casing, a handlebar and a pulling member. The casing has a left cover and a right cover connecting to each other. The casing has a receiving space, an attaching face and a top face. A hole is opened on the casing and communicating with the receiving space. The pulling member is slidably assembled into the receiving space. The pulling member has an engaging groove and a resisting block. An elastomer abuts against the pulling member and the receiving space. The handlebar is assembled into the casing partially and a pivoting rod passes through the casing and the handlebar. Under this arrangement, a user assembles the fastening screw into an articles and the handle bar and sets the handy riveter device on the articles and pushes the handlebar to fasten the articles via the fastening screw.

Abstract: A single handle pulling riveting gun is disclosed. The single handle pulling riveting gun includes a body, a handle, a pulling rod, a grabbing mechanism, a riveting regulating mechanism, a first pin shaft, a second pin shaft, a third pin shaft and a moving piece. The riveting regulating mechanism cooperates with a front end of the body, the grabbing mechanism is set on a chamber of the riveting regulating mechanism; a rear end of the grabbing mechanism cooperates with the pulling rod.

Abstract: A rivet gun has a barrel, a handle assembly, a cylinder and a seal ring assembly. The handle assembly is mounted under the barrel and has a hydraulic shaft and a handle mounted around the hydraulic shaft and having an annular shoulder. The cylinder has a top cover, an annular body and a bottom seat. The top cover is mounted under the handle and contacts the annular shoulder. A diameter of the top cover is larger than a diameter of the annular shoulder such that an outer periphery of the top cover protrudes radially out from an outer periphery of the annular shoulder instead of being covered by the annular shoulder. The annular body is mounted detachably on the top cover. The bottom seat is mounted detachably on the annular body. The rivet gun is allowed to change cylinders of different sizes or types.

Abstract: The invention provides a pulling head, a jaw gripping assembly, and an adjustment assembly. The pulling head has a frame having first and second ends with the first end being configured to receive a stem of a fastener therein. The jaw gripping assembly is generally positioned within the frame. The adjustment assembly is operatively associated with at least one of the frame and the jaw gripping assembly. Manipulation of the adjustment assembly in a first manner moves the jaw gripping assembly closer to the first end of the frame in order to minimize an amount of jaw grip force generated by the jaw gripping assembly, while manipulation of the adjustment assembly in a second manner moves the jaw gripping assembly distal to the first end of the frame in order to maximize an amount of jaw grip force generated by the jaw gripping assembly.

Abstract: A rivet setter has a holder for holding a blind rivet prior to said rivet being set by means of the setter. The holder has a central cylindrical passage, the diameter of which is somewhat greater than the diameter of the mandrel. At least two, preferably three clamping jaws, which are guided in radial slots so as to be radially and axially displaceable, act on the mandrel. The width of the slot is smaller than the diameter of the mandrel.

Abstract: A rivet tool capable of measuring size of blind rivet has a body and multiple interchangeable nosepieces. The body further has multiple rivet body measuring holes formed through the body. Diameters of the rivet body measuring holes match rivet bodies of corresponding blind rivets. Accordingly, the rivet tool of the present invention employs the rivet body measuring holes to measure a size of a rivet body of a blind rivet to rapidly, conveniently and correctly obtain a size of a rivet body of a blind rivet and further to correctly choose a nosepiece with a matching size.

Abstract: A handy riveter device includes a fastening screw, a casing, a handlebar and a pulling member. The casing has a left cover and a right cover connecting to each other. The casing has a receiving space, an attaching face and a top face. A hole is opened on the casing and communicating with the receiving space. The pulling member is slidably assembled into the receiving space. The pulling member has an engaging groove and a resisting block. An elastomer abuts against the pulling member and the receiving space. The handlebar is assembled into the casing partially and a pivoting rod passes through the casing and the handlebar. Under this arrangement, a user assembles the fastening screw into an articles and the handle bar and sets the handy riveter device on the articles and pushes the handlebar to fasten the articles via the fastening screw.

Abstract: An electric drive for a processing tool, in particular for a rivet setting appliance, has an electric motor connected to an actuating element that is linearly displaceable in an axial direction. A damping element that acts in the axial direction is arranged between the electric motor and the actuating element for impact decoupling of the electric motor from the actuating element. As a result, sudden loads, for example if a rivet mandrel breaks during the blind rivet setting operation, are absorbed in a material-conserving manner.

Abstract: A rotating adapter for joining an offset, right angle, or other pulling head to a pulling tool. The adapter allows one-handed positioning of a pulling head that is offset, oriented at an angle relative to the tool, or designed to fit into a relatively tight space. The pulling head can be rotated and/or repositioned repeatedly without changing the stroke length of the pulling tool.

Abstract: Adapter for increasing the stroke length of a fastener installation tool. The adapter includes a tensile member with a first rack gear, a compressive member with a second rack gear, and a plurality of pinion gears retained within a pinion gear housing. The tensile member is mateable with the puller shaft of the installation tool and with the tensile member of an installation head. The pinion gear housing is mateable with the body of the installation tool. The distal end of the compressive member is mateable with a reducing member, which in turn mates with the outer sleeve of the installation head. Operation of the pulling tool moves the tensile member axially toward the tool body and engages the pinion gears, which in turn move the compressive member axially away from the tool body.

Abstract: The invention provides a system configured to adjust a jaw gripping force of a pulling head. A locking nut is threadedly attached to the pulling head and defines an aperture which extends therethrough. A frame adaptor is at least partially positioned within the aperture of the locking nut. The frame adaptor further receives a portion of the pulling head and a piston of a power tool within an aperture thereof, with the portion and the piston engaging one another within the aperture of the frame adaptor. The portion of the pulling head is operatively associated with a jaw of the pulling head. An adjustment nut is threadedly attached to the frame adaptor. Rotation of the adjustment nut, with the locking nut in an unlocked position, causes the jaw gripping force of the pulling head to either be strengthened or weakened, depending on the direction of rotation.

Abstract: In order to ensure that the process of setting a blind rivet is reliable, during the setting operation a rivet mandrel is gripped by gripping jaws of a tension head and is pulled in the axial direction for deforming a rivet sleeve. The tension head and the rivet mandrel, in this case, are matched to one another in such a manner that the gripping jaws initially slide along a gripping portion along the rivet mandrel in their closed position until they reach a predetermined tension position, which is defined in particular by a stop, from which the necessary tensile force for the deforming of the rivet sleeve is first transferred onto the rivet mandrel.

Abstract: A conventional blind rivet tool with modified nose housing, i.e., a rivet gun with replaceable and interchangeable nosepieces, facilitates feeding and setting of multiple diameters of blind rivets with substantially shortened exposed mandrel portions extending beyond the head flange of the rivet, all while maintaining blind rivet performance and reducing total installed blind rivet costs. A rivet with a reduced exposed mandrel protrusion relative to conventional and standardized mandrels can be enabled and more easily fed through the tool.

Abstract: A rivet setter has a holder for holding a blind rivet prior to said rivet being set by means of the setter. The holder has a central cylindrical passage, the diameter of which is somewhat greater than the diameter of the mandrel. At least two, preferably three clamping jaws, which are guided in radial slots so as to be radially and axially displaceable, act on the mandrel. The width of the slot is smaller than the diameter of the mandrel.

Abstract: What is proposed is a device for setting blind rivets which has a motor-actuated pulling device for pulling on the rivet mandrel. The pulling device comprises a disk spring which is initially stressed during the actuation of the pulling device. As soon as the force exerted on the rivet mandrel by the pulling device is sufficiently large such that the rivet mandrel breaks off as intended, the previously stressed spring suddenly relaxes and results in the part of the pulling device which engages on the rivet mandrel butting against a stop. As a result, this part of the pulling device then stops abruptly whereas the rivet mandrel is projected further. It is possible in this way for the rivet mandrel to be conveyed into a rivet mandrel container present in the housing without a user having to execute a particular operation for this purpose.

Abstract: A rivet setting device contains in a housing a receiving chamber in which a break-off rivet mandrel is situated after the setting operation. Arranged in this receiving chamber are two elongate magnets which leave free between them a space for the residual mandrel and which attract the residual mandrel from the holder for the rivet after it has been broken off and retain it. The holder for the residual mandrel can be moved with a transverse component in the device, with the residual mandrel being moved past a stripping element into a region outside the axis of the holder for the rivet. During the rearward movement of the residual mandrel holder, the residual mandrel is stripped off and remains in a collecting chamber.

Abstract: A positioning assembly of a hand rivet nut tool has a rotating sleeve, a mandrel and a positioning ring. The rotating sleeve has a mounting groove formed around an inner surface of the rotating sleeve. The mandrel is mounted through the rotating sleeve and has a positioning groove formed around an outer surface of the mandrel. The positioning ring is mounted in and around the mounting groove of the rotating sleeve and the positioning groove of the mandrel. The mandrel is stably held by the positioning ring in a specific position, so the hand rivet nut tool is able to stably rivet a rivet nut on a work piece. The hand rivet nut tool with the positioning assembly has simplified and optimized positioning effect, and reduced assembling time and cost.

Abstract: The present invention provides a small electric blind rivet setting device that is capable of being driven by a battery and that does not require a pathway for recovering the broken mandrels to be provided in the motor shaft. A recovery container 10 is provided in a tool housing 27 forward of an electric motor 13 in the axial direction, and a spindle 14, which rotates because of the rotation of a drive shaft 18 connected to the electric motor circumventing the recovery container, is connected so as to move a pulling head (30) in the axial direction. The positive rotation, stopping of rotation and reverse rotation of the electric motor are controlled by a pulling operation on a trigger and detecting the position of the pulling head in the axial direction.

Abstract: A method for crimping an insert to be clinched in a support by means of a placing apparatus having an anvil, in an area where the support comprises superposed first and second panels at a distance from one another, wherein the shank is inserted axially in the support and the anvil is brought up against the distal end of the shank, and the second section is then axially compressed against the anvil to create a securing edge, axial compression of the second section then being continued to create a crimping rim delineating an anchoring groove, in combination with the securing edge, surrounding the second panel, axial compression of the second section then being continued to bring about clamping of the support between the securing head and the securing edge in conjunction with clamping of the second panel between the securing edge and the crimping rim.

Abstract: A hand-operated rivet setting tool, having an upper handle, a lower handle, a housing which is connected to the lower handle at its first end and houses a pump assembly and a flexible reservoir, the pump assembly, connected to a flexible reservoir, the front assembly for setting a rivet, having a nose tube connected to a hydraulic cylinder of the pump assembly, a lever assembly, wherein the lever assembly and at least one of the handles are operationally connected to the pump assembly, wherein the pump assembly is sufficiently designed to advance the hydraulic cylinder with the nose tube to set the rivet when the lever of the lever assembly is in a first position, and wherein the pump assembly is sufficiently designed to open a passage for oil to return into the flexible reservoir and the hydraulic cylinder with the nose tube to retrieve toward the housing when the lever of the lever assembly is in a second position.

Abstract: A joining unit contains a spindle drive in the form of a hollow shaft motor that encloses a spindle. The hollow shaft motor serves to achieve a linear movement of a joining tool for the execution of a joining process. The joining unit contains instruments for the presetting and/or determination of the forces exerted and/or the movement of the joining tool during the joining process.

Abstract: A steel ball 11 is housed in a hole 10 which extends from an inner wall toward an outer wall of a nose piece 3 and obliquely rearward with respect to a rivet inserting port 6 as shown by an arrow A. An elastic ring 12 elastically pushes the ball 11 from the outer wall toward the inner wall so that a part of the ball 11 may project into the port 6 whereby the mandrel 5 is grasped. As the hole 10 extends obliquely rearward with respect to the port 6, the ball 11 can move easily when the mandrel 5 travels in the inserting direction but the ball 11 is difficult to move when the mandrel 5 travels in the direction opposite to the inserting direction. As a result, the ball 11 blocks the mandrel 5 from travelling.

Abstract: A blind fastener installation tool comprises a structural housing which features a mechanism for securing a fastener installation assembly in position relative to the structural housing during the blind installation of a fastener; and a mechanism for reciprocating the fastener installation assembly relative to the structural housing at the conclusion of blind installation. The blind fastener installation tool also comprises a fastener installation assembly. This assembly comprises (1) a pull rod assembly comprising a mechanism for pulling a first portion of a fastener; (2) an annular, piston-actuated, piston-decoupled pull rod actuation assembly to translate the pull rod assembly; and (3) a nose assembly comprising a fastener receptacle for securing the position of a fastener; and one or more optional pull rod translation dampening assemblies to smoothly and effectually dampen the sudden translation of said pull rod assembly after pintail break.

Abstract: The invention relates to a device for setting a fastener element (55) having an inner pin (56) slidable relative to an outer body (57) and comprising a locking arrangement (32, 33; 38 39) comprising a bolt (19) provided for acting on the inner pin (56) and secured in a retracted position against axial displacement into an advanced position after relatively spacing a handle body (52) and an actuating organ (8, 46). When The actuating organ (8, 46) is actuated by a displacement opposite the retraction direction, an unlatching organ (40, 41) acts on the locking arrangement (32, 33; 38, 39) and releases the bolt (19) for displacing into the advanced position, Very simple handling of the manually actuated device is thus ensured.

Abstract: A riveting tool for placing a blind breakstem rivet includes a body; a nose casing securable to the body, the nose casing having a nose tip having a nose tip; a jaw housing inside the nose casing, the jaw housing containing jaws for gripping and pulling a rivet stem in use, the jaw housing having an end which incorporates an aperture through which the jaws are urged towards the nose tip by resilient biasing means; and adjustment means configured to adjust a distance from the end of the jaw housing to an inside of the nose tip. Also provided is a nose casing for a riveting tool and a method for altering the jaw separation distance of a riveting tool prior to gripping a rivet stem.

Abstract: The blind fastener installation tool also comprises an optional fastener delivery assembly, said optional fastener delivery assembly constituting: (1) a clip-fed fastener delivery system; or (2) a blowline-fed fastener delivery system.

Abstract: A hand and mechanically activated rivet setting device uniquely and integrally designed to set multiple different types of rivets comprising tubular, semi-tubular and solid rivets made entirely or in part from aluminum, brass, steel and stainless steel having multiple different kinds of heads comprising truss, dome and flat rivet heads; in a work product consisting of pieces and components to be riveted together. The device has the means to set rivets from different positional locations within the device and provides the device operator the ability to completely control the rivet setting process, assuring precision rivet setting without damaging the pieces or components being riveted.

Abstract: A method for assembling at least two elements by a crimping rivet including a head and a stem, and an associated fitting tool including a traction rod. The method includes the following successive steps. A securing step that secures a part of the stem of the rivet by die-stamping on a corresponding part of the traction rod of the fitting tool inserted inside the stem of the rivet. An inserting step that inserts the rivet in corresponding holes of the elements to be assembled. A crimping step that crimps the rivet by the fitting tool. A separating step that separates the fitting tool by radial deformation of the part of the stem on which die-stamping was applied.

Abstract: A self-piercing blind fastener comprising a mandrel having an elongate cylindrical shell mounted on a stem of such mandrel and which extends co-axially about a central elongate axis of the blind fastener, the shell having a radially extending flange at one end and a tail-end portion at the opposite end for insertion through a workpiece, the mandrel further having a mandrel head in operative engagement with the tail-end of the fastener for transmitting a setting force thereto during setting of such fastener, the blind fastener further comprising a longitudinally extending indenting member extending co-axial with and away from the tail-end of the blind fastener, which indenting member having a cross sectional area less than the cross sectional area of the shell.

Abstract: A fastener installation tool for installing breakstem fasteners, wherein a part of the fastener is broken installation and ejected into a collector bottle, provided with a safety disabling means, comprising a valve located in series with and between the tool trigger and main operating valve, wherein removal of the collector bottle causes the valve to close to prevent operation of the main operating valve, thereby to prevent use of the tool with the connector bottle disconnected.

Abstract: Method and apparatus is provided for monitoring the installation of a blind rivet to attach together top and bottom members. The blind rivet installation tool includes a housing having an anvil seated on the rivet head. A collet is reciprocable within the tool housing and carries jaws for gripping the mandrel of the blind rivet. Retraction of the jaws by the collet displaces the jaws and the mandrel axially and causes the mandrel head to axially collapse and radially expand the hollow shank of the blind rivet into engagement with the bottom member so that the rivet attaches the top member and the bottom member. A cut off tool is actuated by an actuator to cut off the mandrel flush with the rivet head. Transducers and a process controller monitor the installation process and actuate the cut off blade upon determining that the blind rivet is properly installed.

Abstract: To provide a blind rivet fastening device that makes it easy to mount a blind rivet in the nose and that keeps the mounted blind rivet from falling out of the nose. When the nose is connected slidably to the tool housing in the axial direction, the nose resists the action of the elastic pushing means and is slid so as to be pulled rearward in the axial direction, and the jaw is pulled rearward in the axial direction in the jaw guide. When this has occurred, the inner diameter of the jaw is increased, the mandrel is easily inserted into the jaw, the force pulling the nose rearward in the axial direction is released, the jaw is returned forward axially in the jaw guide by the pushing force of the elastic pushing means, and the inner peripheral surface of the jaw is frictionally engaged with the mandrel.

Abstract: A rivet body is formed with cutting teeth in a forward edge of the rivet body. A mandrel is formed at a forward end with an enlarged head having a drill point thereon. A plurality of the rivet bodies are stacked on the mandrel, with the drill point. The rivet body is rotated and, through rotative coupling, the mandrel is also rotated. The rotating drill point forms pilot holes in workpieces, and the rotating cutting teeth enlarge the pilot holes to form holes for receipt of a cylindrical portion of the lead rivet body.