Abstract: A clutch apparatus for releasing the transmission of rotation from an electric motor to a spin shaft, is equipped with a rear clutch nut and a front clutch nut in order from the rear end side. The rear clutch nut transmits rotating force from the electric motor to the front clutch nut when engaged with the front clutch nut, but is disengaged from the front clutch nut by a predetermined rotation load. The front clutch nut has a cylindrical shape, so that the spin shaft can be arranged at an axial center portion, and when engaged with the engaging unit of the spin shaft, the rotating force is transmitted to the spin shaft, but the clutch is disengaged by a backward stroke of the front clutch nut and a predetermined stroke toward the tip of the spin shaft.

Abstract: An electric rivet nut machine comprises a motor having a first output shaft and a second output shaft; the first output shaft is connected with a first gear set, and the second output shaft is connected with a second gear set; and a rivet nut drive unit having a rivet nut shaft, a coupling gear and a moving gear; the coupling gear is engaged with the second gear set; the moving gear is engaged with the first gear set; through the first gear set and the second gear set of the motor respectively engaging with the rivet nut drive unit, and through the first output shaft and the second output shaft at two ends of the motor respectively engaging with the first gear set and the second gear set, different gear ratios can be formed, and better gear drive ratio can be produced for the rivet nut drive unit.

Abstract: A portable test instrument for a rivet nut setting tool is disclosed, and the portable test instrument includes a shell body, a circuit module disposed in the shell body, and a strain gauge having a part located in the shell body and electrically connected to the circuit module, and a display device. An end of the strain gauge is exposed to the shell body and used to mount with the rivet nut setting tool. The strain gauge can change a value of a signal transmitted to the circuit module when being forced to deform. The display device is disposed on the shell body and electrically connected to the circuit module, and configured to display data measured by the strain gauge.

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: 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 tool for installing rivet nuts, the tool comprising a screw, a rotatable drive for rotating the screw and an anti-rotation device for preventing rotation of a rivet nut which has been screwed onto the screw.

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: 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 fastener installation tool including an upper jaw having a head adapted to engage a fastener for securing a plurality of workpieces to one another, a lower jaw, and first and second pairs of links fastened to the upper and lower jaws. The tool includes a hydraulic cylinder having one end attached to the lower jaw and a piston rod attached to the first pair of links. The cylinder actuates the tool between a disengaged position, in which the links are in a retracted position and the upper jaw and the lower jaw are juxtaposed with one another, and an engaged position, in which the links are in an extended position and the upper jaw and the lower jaw are spaced apart from one another. The tool is adapted to install the fastener to the workpieces when the tool is in its engaged position.

Abstract: A rivet fixing device includes a catch tab retainer tube engageable with a transmission spindle of an electrically-operated, pneumatic or battery-powered electric drill or screwdriver, an inner guide sleeve, a driver, pawls, a rivet breaker, and an outer guide sleeve. By being driven by the transmission structure of the electric screwdriver, a rivet, with a shank section thereof inserted into a front end of the rivet breaker and the rivet being fit through holes defined in steel plates, iron plates, copper plates, or aluminum plates, due to the catch tab retainer tube being depressed inward to engage the transmission spindle, is driven by the rearward movement of the catch tab retainer tube to have a fit end thereof that extends beyond the holes of the plates squeezed and deformed to form an expanded portion, serving as a positioning wall that stretches and secures the rivet between the two metal plates.

Abstract: A universal offset pulling head assembly for exerting an axial pulling force on a fastener allows the same pulling head assembly to be utilized for a variety of different fastener sizes and types by exchanging a front plate assembly, where the front plate assembly may comprise variable nose pieces according to the type of fastener to be installed. Because the front plate assembly is subject to the most severe wear, other components of the pulling head assembly may continue to be utilized and the front plate assembly discarded. The disclosed pulling head assembly utilizes a stationary guiding member which prevents damage which might otherwise occur because of severe bending moments.

Abstract: An apparatus and method for utilizing an extreme offset nose assembly for installing fasteners are disclosed involving a drawbar, an anvil, and a collet. The drawbar having a first portion, a second portion, a third portion. The third portion transitioning from the second portion by a chamfer or a shoulder. The anvil having a cavity, a first aperture, and a second aperture. The collet having a first bore and a second bore. The drawbar having a section of the first portion disposed within the first aperture, a front section of the second portion threadedly engaged within the second bore of the collet, a rearward section of the second portion passing through the second aperture of the anvil thereby providing a bearing surface between the rearward section of the second portion and the second aperture of the anvil, and the third portion passing through the second aperture of the anvil.

Abstract: An apparatus and method for utilizing an extreme offset nose assembly for installing fasteners are disclosed involving a drawbar, an anvil, and a collet. The drawbar having a first portion, a second portion, a third portion. The third portion transitioning from the second portion by a chamfer or a shoulder. The anvil having a cavity, a first aperture, and a second aperture. The collet having a first bore and a second bore. The drawbar having a section of the first portion disposed within the first aperture, a front section of the second portion threadedly engaged within the second bore of the collet, a rearward section of the second portion passing through the second aperture of the anvil thereby providing a bearing surface between the rearward section of the second portion and the second aperture of the anvil, and the third portion passing through the second aperture of the anvil.

Abstract: A pulling head that can be used with a wide range of fasteners and power tools having different stroke lengths and/or power ratings. The pulling head has a set of internal jaws which has serrations that are configured to grip a wide range of fastener types and sizes. The effective stroke of the pulling head is determined by the power tool to which it is engaged, rather than by the structure and design of the pulling head. The pulling head preferably has two jaws and a jaw follower with a leading surface which provides two beveled surfaces. As a result, the trailing surface of the jaws need not be conical, thereby providing that the jaws need not be machined after they are cast, thereby providing a very low cost manufacturing solution.

Abstract: An apparatus and method for utilizing an extreme offset nose assembly for installing fasteners are disclosed involving a drawbar, an anvil, and a collet. The drawbar having a first portion, a second portion, a third portion. The third portion transitioning from the second portion by a chamfer or a shoulder. The anvil having a cavity, a first aperture, and a second aperture. The collet having a first bore and a second bore. The drawbar having a section of the first portion disposed within the first aperture, a front section of the second portion threadedly engaged within the second bore of the collet, a rearward section of the second portion passing through the second aperture of the anvil thereby providing a bearing surface between the rearward section of the second portion and the second aperture of the anvil, and the third portion passing through the second aperture of the anvil.

Abstract: An intake distributing device of a rivet-nut gun, which comprises a body shell with two intake passages underneath; the center cylindrical hole of the body shell is mounted with a pneumatic motor assembly; the rear end of the body shell is mounted with a tail lid, which has two intake pipes to be connected and communicated with two pipes of a piston rear lid; by means of a trigger or a contact driving means, a pressure air can flow via the distributing pipes of the piston read lid to drive the rivet-nut gun to perform a riveting work and to pull out work.

Abstract: A tool and method for installing collapsible inserts. The tool includes a stabilizing handle which is threaded onto a tool body. The tool body is threaded onto a tool shaft. In use, a collapsible insert is threaded onto the tool and the insert is positioned in a hole in a workpiece. An actuating handle of the tool is then rotated, while holding the stabilizing handle, to cause the collapsible insert to collapse, thereby installing the insert relative to the workpiece. Once the insert has been collapsed using the tool, the actuating handle is rotated in the opposite direction, while holding the stabilizing handle, to disengage the tool from the insert. Then, a hanger is threadably inserted into the collapsed insert and a threaded rod is threaded into the hanger. Alternatively, the threaded rod is directly threadably engaged with the collapsed insert, without need for a hanger.

Abstract: A pneumatic/hydraulic riveter includes a valve unit formed of a socket set and a control valve movable relative to the socket set to provide a forward rotation control air loop, a pulling control fluid loop, or a reverse rotation control air loop in such a manner that when one loop is provided the other two loops are closed, so that the riveting unit is controllable to perform a forward rotation action, a pulling action and a reverse rotation action in proper order.

Abstract: An insert installation apparatus comprises a housing having a body section and a nose piece. The nosepiece comprises a forward end and a rearward end, where the rearward end of the nose piece is attached to the body section. The apparatus comprises a rotary power source and reciprocating means which are employed to set a threaded insert in a work piece. The rotary power source has an extension member which connects the rotary power source to the first end of a drive shaft which is received by the extension member. The second end of the drive shaft is operationally coupled to a partially threaded mandrel which extends out of the forward end of the nose piece. The apparatus further comprises mandrel shock absorbing means which allow the mandrel to reciprocate with respect to the nose piece from a first position to a second position, where the mandrel shock absorbing means operates independently from the reciprocating means which usually employed to set the threaded insert.

Abstract: An anvil driving assembly, anvil driving tool, and method for installing rivetless floating nut plates in workpieces. The tool and method are capable of pulling a rivetless nut plate sleeve into a countersunk hole in the workpiece simultaneously with flaring the open end of the nut plate sleeve.

Abstract: A tubular fastener element is inserted into an opening in a wall until a flange at the trailing end of the fastener element is in contact with the wall. Then, an externally threaded end of a rod is inserted into a center opening in the fastener element from the flange side of the wall and is mated with internal threads in the fastener element beyond the second side of the wall. A tubular mandrel that surrounds the rod is moved into contact with the entrance portion of the center opening in the tubular fastener. The outside diameter of the mandrel is larger than the inside diameter of the center opening in the fastener element. The rod is retracted to cause a reduced thickness wall portion of the fastener element to collapse and form a second radial flange on the second side of the wall. The mandrel is forced axially into the center opening in the fastener element.

Abstract: A system is disclosed for installing an insert within an aperture in a workpiece, the workpiece having a first side and a second side. The insert is the type in which a portion of the insert plastically deforms on the second side of the workpiece upon application of a linear force provided by a tool, thereby preventing withdrawal of the insert from the aperture. The insert comprises a sleeve member and an integral flange, where the flange has a larger diameter than the aperture. The disclosed installation system performs two actions. It causes the expansion of the sleeve and it also causes the flange of the insert to be fused or welded to the first side of the workpiece. The welded connection between the insert and the workpiece prevents any rotation or spinning of the insert within the workpiece, and increases the integrity of the insert-fastener connection.

Abstract: A setting apparatus 1 for setting a blind nut or the like to a workpiece, comprises a mandrel 7, a hydraulic cylinder 17 receiving therein a hydraulic piston 15 for axially pulling the mandrel 7, an oil reservoir 22 for containing oil to be supplied to the hydraulic cylinder 17, and an air cylinder 27 for receiving therein an air piston 26 connected to a ram 25 adapted to be reciprocatingly advanced and retracted in the oil reservoir 22. In response to the compressed air supplied to the air cylinder, the hydraulic piston 15 is moved to pull the mandrel 7, whereby a fastener threadedly connected with the mandrel is set to a workpiece. The setting apparatus 1 also includes an air-pressure setting valve 33 for adjustably presetting the air pressure of the compressed air to be supplied to the air cylinder 27.

Abstract: A hand held spin-pull tool for securing a hollow threaded insert into a substrate.

Abstract: A quick release drive assembly intercouples a reversible hand held motor and a drive screw for mounting blind fasteners in place. A replaceable adaption assembly includes the drive screw, the nosepiece of the unit and a drive adaptor for supplying torque from the motor to the drive screw. An outer housing is coupled to the nosepiece by three ball bearings which extend into a peripheral groove in the nosepiece, and which are held in place by a locking zone of reduced inner diameter in a quick release sleeve. The quick release sleeve has an adjacent release zone of increased inner diameter, into which the ball bearings may shift. A locking spring biases the quick release sleeve to its locked position. An eject spring is operative when the quick release sleeve is shifted to its released position, to eject the adaption assembly.

Abstract: A device for producing a riveted joint includes a mechanism (21, 25) to fire a rivet (14) having a jacket (14a) and a pin (14b) guided through the jacket (14a). The rivet is fired through the workpieces to be joined. A means is provided for pulling the rivet (14). The device that can be manufactured at a reasonable price and ensures reliable operation by the mechanism (21, 25) for firing the rivet (14) acting upon the rivet pin (14b).

Abstract: A tubular fastener element (34) is inserted into an opening (44) in a wall (W) until a flange (40) at the trailing end of the fastener element (34) is in contact with the wall (W). Then, an externally threaded end (32) of a rod (28) is inserted into a center opening (56) in the fastener element (34) from the flange side (42) of the wall (W) and is mated with internal threads (52) in the fastener element (34) beyond the second side (50) of the wall (W). A tubular mandrel (24) that surrounds the rod (28) is moved into contact with the entrance portion of the center opening (56) in the tubular fastener (34). The outside diameter of the mandrel (24) is larger than the inside diameter (58) of the center opening (56) in the fastener element (34). The rod (28) is retracted to cause a reduced thickness wall portion (46) of the fastener element (34) to collapse and form a second radial flange (60) on the second side (50) of the wall (W).

Abstract: A quick release drive assembly intercouples a reversible hand held motor and a drive screw for mounting blind fasteners in place. A replaceable adaption assembly includes the drive screw, the nosepiece of the unit and a drive adaptor for supplying torque from the motor to the drive screw. An outer housing is coupled to the nosepiece by three ball bearings which extend into a peripheral groove in the nosepiece, and which are held in place by a locking zone of reduced inner diameter in a quick release sleeve. The quick release sleeve has an adjacent release zone of increased inner diameter, into which the ball bearings may shift. A locking spring biases the quick release sleeve to its locked position. An eject spring is operative when the quick release sleeve is shifted to its released position, to eject the adaption assembly.

Abstract: An offset nose assembly for installing fasteners is provided that generally includes a drawbar, a swage anvil and a collet. The drawbar has three portions with the third portion transitioning from the second portion by a chamfer, the chamfer being of a preselected angle that is adapted to positively engage a chamfer of a preselected angle of a piston of a fastener installation tool. Additionally, a generally L-shaped guard assembly is provided that is disposed on the collet to cover a gap defined between the collet and the swage anvil. Also, a deflector is provided that is attached to a nut that is threadedly engaged with the rearward end of a bore in the collet, the deflector having a section of a uniform constant outside diameter that integrally transitions to a section that has an outside diameter that gradually lessens along its length.

Abstract: A method and apparatus for installing a hollow threaded insert into a hole in a substrate having first and second surfaces. The insert has a hollow shaft having a first end portion, a second end portion and an intermediate portion. The insert has a front flange at the first end portion for engaging the front surface of the substrate around the hole. The second end portion of the shaft has an internal thread and, the intermediate collapses to engage the second surface when a force is applied that pulls the second end portion toward the first end portion.

Abstract: A rivet tool to be used with a rivet includes a tube adapted to be received in an adjusting knob, a transmission rod movably received in the tube and a bolt having a front threading and a rear threading corresponding to the front inner threading. The bolt securely engages with the transmission rod in such a way that there is no relative movement between the bolt and the transmission rod. A Y-shaped head is provided to engage with the rivet tool so that when the rivet is deformed due to movement of the tube, the transmission rod and the bolt, a peripheral edge of the rivet abuts the recessed area of the Y-shaped head, which conforms to an outer contour of an oval tube, so that after the deformation of the rivet and the rivet tool is removed, the appearance of the oval tube is smooth.

Abstract: A backup mandrel for attaching a grommet to a washer in an aircraft panel opening having a housing and a nose piece attached to the housing, the nose piece having an opening. A stem is attached to the housing and has a first and a second portion, such that the first portion is disposed within the housing and the second portion protrudes from housing through the nose piece opening. A sleeve is also attached to the housing and has a first and a second segment, such that the first segment is disposed within the housing and the second segment protrudes from the housing through the nose piece opening, wherein the sleeve is displaceably mounted around the stem.

Abstract: Electroportable apparatus for positioning nuts to be set and the setting of blind rivets whose shank ruptures includes a body of the eledtroportable type containing an electric motor, a mandrel, drive part to maintain and pull the head of the rivet and/or to pull, screw or unscrew the nut to be set, as well as a part for pre-regulating the path of the mandrel.

Abstract: A hydraulic installation tool for installing fasteners is provided, that includes a housing having a first portion adapted to receive a drawbar and a second portion adapted to receive a piston, a gland and a retaining ring. A generally L-shaped drawbar is disposed in the first portion of the housing and a piston, a gland and a retaining ring is disposed in the second portion of the housing. The hydraulic installation tool is useful in securing lockbolt or swage type fasteners.

Abstract: A riveting tool for fastening a hollow rivet to a curved workpiece is disclosed. The tool includes a main body provided with a forwardly-extending barrel terminating in a forked distal end. The main body has a power-operated rotor formed with a central hexagon stem in alignment with the barrel. A sleeve is movable within the barrel to an extended position and is spring-loaded in such a way that it is normally in the extended position but may be retracted into the barrel when being pressed backward. The riveting tool further includes a screw having a socket head engaged with the central hexagon stem of the rotor. The screw extends out of the barrel through the sleeve.

Abstract: A method and apparatus for installing a hollow threaded insert into a hole in a substrate having first and second surfaces. The insert has a hollow shaft having a first end portion, a second end portion and an intermediate portion. The insert has a front flange at the first end portion for engaging the front surface of the substrate around the hole. The second end portion of the shaft has an internal thread and, the intermediate portion forms a gripping means that engages the second surface when a force is applied that pulls the second end portion toward the first end portion.

Abstract: A setting gripper (16) is disclosed for an anchor device of the type comprising two co-axial components of which each has a head with the head being spread apart co-axially during setting. The gripper (16) includes two jaws (36, 49) which are engaged between the two heads and are spread apart by a pivoting lever (20) relative to a gripper body (19) around axes (95, 111, 82, 85) which are increasingly removed from a zone of mutual contact (64, 110) between the lever (20) and a slider (21). The slider (21) defines one (49) of the two jaws, whereas the other jaw (36) is defined by the gripper body (19).

Abstract: A drill mounted tool for installing collapsible deformable head fasteners includes a yoke supported on the drill housing carrying a reciprocal nosepiece rotatably coupled at a left hand threaded connection to an actuator shaft connected to the drill chuck. The actuator shaft has an external projecting right hand threaded end for carrying the fastener. Upon drill actuation, the actuator shaft extends the nosepiece relative to the actuator shaft thereby collapsing and deforming the fastener into secure engagement with a workpiece.

Abstract: A rivet gun includes a pneumatic motor (4), that drives a segment stem 7. A pneumatic cylinder (21) actuates a hydraulic cylinder (22) which sends oil under pressure to an expansion chamber (10) provided for moving back the segment stem (7) and buckling the rivet (2) fixing it to a laminate structure (100). The rivet gun also includes a change-over switching device (30) linked to controls (50,60) for reversing rotation of the motor (4). The controls (60) include an inlet valve (61) operated by a trigger (64) for connecting a compressed air infeed duct 14 with a feed-discharge duct (23) leading to the pneumatic cylinder (21). A discharge valve (63) is disposed in series with the inlet valve (61) and has an adjustment ring (176) for adjusting of the maximum traction force. Another discharge valve (90) is disposed in series with the discharge valve (63) previously mentioned and is provided for adjustment of the stroke of the segment stem (7).

Abstract: A rivet setting tool for setting blind rivet nuts has a rotation reversal device including a valve slide and a slide housing that is moveable into a forward position and a rear position, a rotary motor connected to a feed spindle and having a direction of rotation that is controllable by the rotation reversal device, a pressure medium piston/cylinder device that is operable for a rivet upsetting process and confers an axial motion on a threaded bolt via the feed spindle, and a device that actuates the pressure medium piston/cylinder device and the rotation reversal device. The rotation reversal device includes a fixing device that at least temporarily fixes the position between the valve slide and the slide housing, the fixing device engaging with the valve slide.