Abstract: A fastening tool draws a mandrel (5) to allow a caulking portion of the mandrel to deform a stem of a rivet (2) so that workpieces are fastened together. The fastening tool used in this process includes a nosepiece having a protrusion. During caulking, the protrusion of the nosepiece applies a force on a flange of the rivet to form a recess in the rivet flange and thereby peel a coating of the workpieces. As a result, electrical conductivity between the workpieces and the rivet is obtained.

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 structure of rivet nut gun having a body, a handle and a pressure cylinder. The top of the handle is furnished with a mounting base having a through cylindrical hole. The lower end of the handle is furnished with a base surface for mounting the fastening disk. The body has a connector mounted with a connecting rod to penetrate through the cylindrical hole of the handle. The fastening disk is fastened to one end of the connecting rod by a nut. The fastening disk is connected with two symmetrical screw rods, which penetrate through the piston and the pressure cylinder, and are fastened to the bottom of the pressure cylinder by two nuts respectively so as to have the piston cylinder fastened in place and to prevent the pressure cylinder from deformation during the rivet nut gun operating.

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 blind riveting device for placing blind rivets includes a device head, wherein an opening for receiving a rivet bolt and a suction device for producing a negative pressure for holding the rivet bolt in the opening are arranged in the head. A control unit for switching the suction device on and off by an actuating element is provided at a handle which is connected to the head. For facilitating the manipulation of the blind riveting device, the actuating element can be locked in a switched-on position.

Abstract: The invention concerns a clamping connection for an interchangeable mandrel (1) and drive shaft (13) of a riveting tool.

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 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 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: An air over oil riveter with a rotatable head piece includes a head piece, a handle, two rotatable members, a connecting sleeve with a hollow body, an oil sleeve, and a main body. The head piece includes an bore for receiving an outer sleeve and a driving sleeve housed in the outer sleeve. The front of driving sleeve has a joint for connecting the rivet-pulling apparatus. The rivet-pulling apparatus is disposed in a housing of the head piece. The bottom of the head piece has a first inclined plane, and the front of the handle has a second inclined plane disposed in opposition to first inclined plane. Two rotatable members are respectively coupled to the first and second inclined planes. The connecting sleeve connects through an oil path of the handle and two rotatable members to the head piece by a nut fastened on the screw thread of the front of the connecting sleeve.

Abstract: The present invention includes both the device and the method for utilizing two wedge shaped halves to retract a stud used to deform rivet nut material, thereby setting the rivet nut. The tool consists of two wedge shaped halves and a stud passing through both halves, extending to receive the threads of an uncompressed rivet nut. A slide screw controls the wedging action, causing the stud to retract. A stabilizing member is utilized to resist the rotational forces created during activation of the slide screw. The slide screw allows the top wedge and bottom wedge to slidably relate to one another, allowing the stud to increasingly extend beyond the bottom wedge. The extended stud threads into a rivet nut which is then passed through a predrilled hole in the material to which the rivet nut is to be fastened. Upon activation, the slide screw causes the top wedge to slide along the bottom wedge.

Abstract: A rivet setting tool is provided with a quick connect nose housing. The quick connect feature allows for quicker easier disassembly and assembly of the nose housing for cleaning and general maintenance.

Abstract: A method and apparatus are provided for loosely attaching blind rivets to components of an assembly. The method includes attaching a rivet to an assembly while positioning the head at a predetermined clearance away from the adjacent one of the assembly components. One or both of the aligned openings in the components may be enlarged to leave radial clearance between the assembled rivet body and the enlarged openings. The apparatus includes a nose insert for use with or attachment to a rivet gun or attaching apparatus. The insert forms a stop engageable by a preformed rivet head to maintain a predetermined clearance between the rivet head and adjacent component when the rivet is attached to components forming an assembly.

Abstract: A rivet tool/rivet nut tool/rivet bolt tool with a freely-rotatable and finely-adjustable head has a handle pivotally connected to a lever and a swivel head rotatably connected to the handle. The swivel head can be finely-adjusted by use of a [steering] gear and a slidable gear lock. The slidable gear lock has an inverted V top with a tip to mesh with the gear by the recovery force of a spring, whereby the swivel head can be finely-adjusted and whenever the swivel head is rotated, a clicking sound is made to inform a user. The back-and-forth movement of the slidable gear lock can be as a complement to the tip of the slidable gear lock and teeth of the gear to prolong the operation life of the slidable gear lock, steering gear and the rivet tool/rivet nut tool/rivet bolt tool.

Abstract: A manually applied installation tool, for setting fasteners by applying a relative axial pulling force thereto and including a first hydraulic piston in a first hydraulic cylinder for reciprocation in response to a preselected high hydraulic pressure for applying the relative axial pulling force, a second hydraulic piston in a second hydraulic cylinder for reciprocation between compressive and non-compressive directions for providing hydraulic fluid at the high hydraulic pressure to the first hydraulic cylinder for application of the axial pulling force by the first hydraulic piston, a fluid reservoir having a supply of hydraulic fluid for compression by the second hydraulic piston and flow to the first hydraulic cylinder through an access valve, a high pressure relief valve connected to the second hydraulic cylinder and actuable to relieve the fluid pressure at a preselected high magnitude with flow of hydraulic fluid back to the fluid reservoir.

Abstract: A riveting tool (11) for placing a blind breakstem rivet (28), which tool comprises: a body (12, 13, 14), a nosepiece (18) removably and replaceably securable to the body (14); a drawbar (17) reciprocable with respect to the body (14) and the nose-piece (18); and stem-engaging means (22) removably and replaceably securable to the drawbar (17), in which the nosepiece (18) is readily and rapidly removable from and replaceable on the body (14), and the stem-engaging means (22) is readily and rapidly removable from and replaceable on the drawbar (17); thereby to enable the rapid removal and replacement of the nosepiece (18) and stem-engaging means (22).

Abstract: A setting apparatus 30 in which a mandrel of a blind rivet is inserted into a hole 47 of a nose at the front end of the setting apparatus, and wherein a rivet body of the rivet is projected from the nose into a mounting hole of a workpiece. The mandrel is pulled rearward of the nose with a force capable of breaking the mandrel and expanding a shank of the rivet body so that the rivet is set in the workpiece by the expanded shank and a flange of the rivet body, followed by discharging of the broken mandrel from the setting apparatus. The force for pulling the mandrel is obtained from hydraulic pressure of a hydraulic cylinder 34. The hydraulic pressure is produced by a piston 41 which moves in a pneumatic cylinder 39 adjacent to the hydraulic cylinder. The nose 31 is axially aligned with an apparatus body 33 including the hydraulic cylinder and the pneumatic cylinder 39 along the longitudinal direction of the setting apparatus 30 from the front end to the rear end thereof.

Abstract: A die assembly (20) for riveting includes an upper die (200), a base die (230), a pair of clamps (270), and a pair of springs (280). The upper die includes a fixing block (202), and a pair of pressing protrusion (204) at opposite sides of the fixing block and having first slanted surfaces (206). The base die includes a sizing block (232) to position a workpiece. Two supporting blocks (234) are formed at opposite sides of the sizing block, each defining a through hole for accommodating the clamp. Two positioning blocks (240) are at opposite sides of the supporting blocks. Each clamp includes an end block (276) having a second slanted surface (278) corresponding to the first slanted surface of the pressing protrusion, and a connecting portion (272) slidable in the through hole of the supporting block. The springs connect the clamps to the positioning blocks.

Abstract: To set two-part fasteners (8), in particular blind rivets, in which for setting a first part (7) has to be pulled while a second part (6) is held, a device is proposed with a housing (1), a feed appliance (9) on the housing (1) to transfer a fastener (8) into the housing (1) through an orifice (12) in the housing (1), an abutment (3), which holds the second part (6) during the setting process, and a pulling device pulling the first part (7) during the setting process, which has a gripper (5) at an open end of a pulling element (4) which cooperates with a pulling piston (13) which is movable forwards and backwards along an axis of the housing (1) in a first chamber (14) by an actuating unit. To transfer a fastener (8) the pulling element (4) opens the orifice (12). The pulling element (4) extends through the piston (13). The pulling piston (13) and the pulling element (4) are movable relative to one another along the axis. The pulling element (4) has a piston (17) on the end opposed to the gripper (5).

Abstract: A riveting tool for setting blind rivets and/or bolts with lock washers has a mouthpiece to receive blind rivets and/or bolts, a pneumatic device to carry away broken-off rivet pins from the riveting tool, a pressable device arranged on the riveting tool that releases a course of functions relating to a riveting process, a valve device for supplying air to the pneumatic device to carry away broken-off rivet pins from the riveting tool, and a handle to hold the riveting tool. The valve device includes an actuating device that controls the air supplied to the pneumatic device to carry away broken-off rivet pins, the actuating device being arranged on the handle.

Abstract: The present invention relates to a riveting apparatus, having an electrically operated drive motor which has a motor shaft for driving a riveting device of the riveting apparatus, the riveting device having a gearing for transferring the rotational movement of the motor shaft into a linear movement of the riveting device having a constant transmission ratio. In order to reduce the power consumption of a riveting apparatus of that kind, the invention provides at least one flywheel which can be connected in a releasable manner with the motor shaft via a coupling.

Abstract: A rivet setting tool provided with a threaded bolt or drift for engaging a nut of the rivet. The rivet has a thin walled sleeve portion which is to be deformed during setting of the rivet and forms a flange. The rivet setting tool is driven with decreasing force during the working stroke of the rivet setting tool. In a first embodiment, a toggle lever arrangement having a pair of hand levers and a pair of linking levers is used to produce a decreasing force during the working stroke. In a second embodiment, a pneumatic cylinder cooperates with spring means in order to produce a force during the working stroke which is decreasing.