Abstract: An expansion anchor includes an anchor bolt and an expansion sleeve which encompasses the anchor bolt. The anchor bolt has an expansion-sleeve expansion region and an expansion-element expansion region. The expansion sleeve has an expansion element which is disposed on the expansion sleeve. The expansion sleeve is radially displaceable by the expansion-sleeve expansion region and the expansion element is radially displaceable by the expansion-element expansion region. The expansion element is disposed on the expansion sleeve on a side of the expansion sleeve that radially faces the anchor bolt.

Abstract: Methods and devices for securing soft tissue to a rigid material such as bone. A tissue capture anchor is described that comprises an anchor body and a spreader such that tissue may be captured or compressed between outside surfaces on the anchor and spreader and inside surfaces of a bone hole to secure the tissue within the hole. A bone anchor is described that comprises an anchor body with expandable tines and a spreader that expands the tines into bone. The spreader captures tissue via a suture loop at the distal end of the bone anchor. Also described is an inserter that can be used to insert the anchor into bone and move the spreader within the anchor to expand the anchor and capture the tissue between the anchor and the bone. Methods are described that allow use of single bone anchor to secure tissue to bone or also to use more than one bone anchor to provide multiple lengths of suture material to compress a large area of soft tissue against bone.

Abstract: Assemblies for securing a fractured or weakened bone within a subject's body are provided. The assembly includes a frame having an adjustable flexible member construct thereon. The adjustable flexible member construct is disposed in the frame such that the adjustable flexible member and the frame encircle the fractured or weakened bone.

Abstract: A suture anchor according to embodiments of the invention includes a body (102) having a proximal (121) and distal (125) ends and at least two suture paths open towards the proximal end and not open (e.g. looped around) towards the distal end and which are respectively capable of receiving a suture, and a proximal cavity (103) opening into a transverse cavity (104). The anchor may also include a transverse wall (105) arranged at least partially in the transverse cavity (104), and for each suture path, a distinct eyelet (112) for the passage of a suture through the transverse wall (105), so that a suture thread (162) in place in the anchor (100) forms a U with a first strand (162a) along the longitudinal axis (X-X), a second strand (162c) substantially parallel thereto, and an arc (162b) formed in the eyelet (112) and connecting the first and second strands.

Abstract: A blind fastener device for fastening at least two workpieces, including a sleeve, an expander having a tensioning section, a locking section, and an expansion section, and a nut. A portion of the expander passes through the sleeve to cooperate with the nut so that relative rotation of the expander and nut draws the expander's distal end toward the sleeve's proximal end thereby drawing a portion of the expansion section of the expander into a structural region located on the sleeve and expanding at least a portion of the sleeve's structural region, and drawing a portion of the locking section past the sleeve's distal end toward the sleeve's proximal end and deforming at least a portion of the sleeve's distal end to a locked state.

Abstract: The present invention relates to a bone screw comprising a screw body comprising a proximal end, a distal end, a longitudinal axis and a thread along all or a portion of said screw body; a screw head; a through bore extending coaxially through said screw head and through said screw body from the proximal end up to the distal end; at least three blind channels angularly-disposed around the bore; each of said channels being configured to receive a perforated catheter or a needle; a plurality of radially-disposed fenestrations; wherein each of said channels is connected to an exterior of said screw body through at least one fenestration; and flexible directing means secured to the screw head. The present invention also relates to a system comprising such bone screw, to a method of delivering a substance to an intervertebral disc using the system according to the invention and to a method of treating vertebral tumor using the system according to the invention.

Abstract: A blind fastener device for fastening at least two workpieces, including a sleeve, an expander having a tensioning section, a locking section, and an expansion section, and a nut. A portion of the expander passes through the sleeve to cooperate with the nut so that relative rotation of the expander and nut draws the expander's distal end toward the sleeve's proximal end thereby drawing a portion of the expansion section of the expander into a structural region located on the sleeve and expanding at least a portion of the sleeve's structural region, and drawing a portion of the locking section past the sleeve's distal end toward the sleeve's proximal end and deforming at least a portion of the sleeve's distal end to a locked state. The sleeve may be configured as a multi-section sleeve having a sleeve retainer to locate the sections in a predetermined relationship.

Abstract: A kit including a first component having a male taper and a second component having an internal bore with a female taper. The first component and second component being engageable via the male and female tapers. The kit further including a disassembly tool having a body and an expandable portion separable from the body, such that the expandable portion has an initial outer diameter equal to the inner diameter of the internal bore of the second component.

Abstract: A blind fastener device for fastening at least two workpieces, including a sleeve, an expander having a tensioning section, a locking section, and an expansion section, and a nut. A portion of the expander passes through the sleeve to cooperate with the nut so that relative rotation of the expander and nut draws the expander's distal end toward the sleeve's proximal end thereby drawing a portion of the expansion section of the expander into a structural region located on the sleeve and expanding at least a portion of the sleeve's structural region, and drawing a portion of the locking section past the sleeve's distal end toward the sleeve's proximal end and deforming at least a portion of the sleeve's distal end to a locked state. The sleeve may be configured as a multi-section sleeve having a sleeve retainer to locate the sections in a predetermined relationship.

Abstract: A device for plugging an axially-aligned bore in a shaft of a gas turbine engine comprises a plug. A sealing body of the plug is sealingly received in a bore of the shaft. Legs project from the sealing body and are displaceable between a normally contracted position in which the legs are radially inward relative to a periphery of the bore, and a deployed position in which the legs project radially outward and engage with shaft projections within the bore of the shaft. A wedge is operatively engaged to the plug for movement of the wedge relative to the plug. The wedge comprises a portion in operative contact with the legs of the plug unit to displace the legs between positions as a response to movement of the wedge. A gas turbine engine and a method for plugging a shaft are provided.

Abstract: A concrete anchor point system provides for an anchor point, a receptacle for embedding into a concrete structure for removably receiving the anchor point, and a tool for remotely installing the anchor point in the structure, or removing the anchor point from the structure. The receptacle is preferably tapered, and an anchoring end of the anchor point is preferably tapered to match.

Abstract: A fastening assembly includes a fastening member, a locking member engaged with the fastening member, and an elastic member sleeved on the fastening member. The fastening member forms an arc resisting sidewall. The elastic member includes a main body and a plurality of elastic strips extending from a same side of the main body and spaced from each other. Each elastic strip gradually closes to an center axis of the main body along the direction of away from the main body. Each elastic strip forms an arc protrusion towards the center axis of the main body on an inner wall. The arc protrusion matches with the resisting sidewall.

Abstract: The invention relates to a fixing element (1) for anchoring in an undercut drilled hole. The fixing element (1) has a shank portion (2) and an expansion element (3), there being arranged on the shank portion (2) an expander body (8) for expanding the expansion element (3) and a load-application means (7). The expansion element (3) is sleeve-like, having at its end that is at the rear in the direction of introduction (E) a ring-shaped main body (13) at the introduction end of which there is arranged an expansion lobe (10) having an opening (17).

Abstract: A pull-up bolt assembly for frictionally supporting a high-weight structure to a hinge component using an opening or recess in the high-weight structure.

Abstract: An anchor stud includes a stud portion including a body portion having a first end that extends to a second end though an intermediate portion. A wedge member is operatively coupled to the second end of the stud portion. The wedge member includes a body having a generally frustoconical profile and is formed from a material having a Vickers hardness greater than about 220 HV. A sleeve element is positioned on the stud portion at the second end adjacent the wedge member. The sleeve element is formed from a material having a Vickers hardness greater than about 220 HV.

Abstract: A unique self-drilling anchor screw is configured so that it can be set and used to secure a first object to a second object using only one tool to save time and effort. A nut of the screw engages a nut stop when turning in reverse, thereby driving rotation of the screw in reverse. The screw has a drill bit tip adapted for drilling a hole while turning in reverse. A hole is drilled using the drill bit tip while turning the nut in reverse with a socket wrench of the one tool. After drilling the hole, the nut is turned in the forward direction with the socket wrench to engage a sleeve member of the screw, which sets the screw in the second object. Then, the nut is further turned forward using the socket wrench to tighten the nut against the first object located between the nut and the second object.

Abstract: An exemplary embodiment relates to an expansion bolt component that includes a bolt, an elastic component, and a nut. The bolt includes a necking part at an upper end thereof. The elastic component includes sides parts that include a plurality of ribs symmetrically arranged. Each rib includes a lower part and an upper part, each lower part being connected to a lower part of an associated adjacent rib. The nut is configured to be threaded onto a lower end of the bolt and to move into a lower end of the elastic component due to rotation of the bolt. The lower part of each rib is configured to expand in a radial direction when the nut moves into the elastic component. The upper part of each rib is configured to move simultaneously toward the upper part of its associated adjacent rib, such that the upper parts of the plurality of ribs clamp the necking part of the bolt.

Abstract: A method or arrangement for clamping at least one first and one second component to each other with a connection by force on all sides is disclosed. The connecting arrangement comprises a bolt extending from a first component through a through opening in a second component, a clamping nut which is screwed on the bolt for clamping the components, and a cone pair comprising an inner cone with a split and an outer cone. One part of this cone pair is formed as a conical clamping element, which is arranged and axially moveable for radial clamping on the bolt between the components and the clamping nut. A locking nut is screwed on the conical clamping element and clampable against an abutment surface of the second component to limit moveability of the clamping element.

Abstract: A wedge-type anchor assembly, capable of meeting cracked concrete testing standards, comprises an anchor bolt component and a substantially C-shaped expansion sleeve component annularly disposed about the anchor bolt component. A plurality of annular grooves, threads, or teeth are disposed only about the forward end portion of the expansion sleeve component, as opposed to throughout the entire axial length thereof, so that when the anchor bolt component is moved axially through the expansion sleeve component, the maximum interference area (M.I.A.) and maximum interference volume (M.I.V.) can be generated between the anchor bolt component and the expansion sleeve component in a controlled and predictable manner, as well as between the expansion sleeve component and the internal peripheral side wall portions of a concrete substrate or substructure can be generated so as to enhance pull-out resistance and reliability of the anchor assembly within the concrete substructure or substrate.

Abstract: An anchor stud includes a stud portion including a body portion having a first end that extends to a second end though an intermediate portion. A wedge member is operatively coupled to the second end of the stud portion. The wedge member includes a body having a generally frustoconical profile and is formed from a material having a Vickers hardness of between about 218 HV and about 290 HV. A sleeve element is positioned on the stud portion at the second end adjacent the wedge member. The sleeve element is formed from a material having a Vickers hardness of between about 218 HV and about 290 HV.

Abstract: A joint and method for connecting elongated members end to end in which outer sleeves are anchored in blind holes extending in from each end face and a threaded rod is advanced into threaded nut receptacles affixed to the inside end of each sleeve to draw the end faces into abutment.

Abstract: An expansion anchor comprising a tubular body, which extends along a longitudinal axis and displays a deformable end portion on which there are obtained longitudinal slots which divide the end portion itself into a series of anchoring fins, and an expansion nut, which is partially engaged onto said end portion and is adapted to be displaced by a screw so as to radially expand said anchoring fins outwards; each anchoring fin being shaped so as to display an annular ridge on its end and two protruding side teeth, which are arranged on the side edge of said anchoring fin at the two ends of the ridge; each anchoring fin further displaying an external friction surface provided with a plurality of annular notches or cavities coaxial to the longitudinal axis.

Abstract: A bolt anchor is comprised of a camming element and sleeve. The camming element is generally cylindrical, but with a larger midsection and reduced diameters at each end. The camming element includes a threaded bore along its axis and at least one stop near one end. The sleeve has a round collar with leaves extending from the collar parallel to the axis of the collar and each other. The stop maintains the assembly of the camming element and sleeve. Prongs on the sleeve prevent the retraction or turning of the bolt anchor when a bolt is installed in a hole. Reduced material thickness associated with the leaves produces hinges which allow the leaves to be more easily deformed outwardly. Inserting a bolt and anchor assembly into the hole and turning the bolt pulls the camming element into the sleeve and creates a wedging effect in the hole.

Abstract: A unique self-drilling anchor screw is configured so that it can be set and used to secure a first object to a second object using only one tool to save time and effort. A nut of the screw engages a nut stop when turning in reverse, thereby driving rotation of the screw in reverse. The screw has a drill bit tip adapted for drilling a hole while turning in reverse. A hole is drilled using the drill bit tip while turning the nut in reverse with a socket wrench of the one tool. After drilling the hole, the nut is turned in the forward direction with the socket wrench to engage a sleeve member of the screw, which sets the screw in the second object. Then, the nut is further turned forward using the socket wrench to tighten the nut against the first object located between the nut and the second object.

Abstract: A bore gripping anchor structure for attaching articles to the outer surfaces of masonry materials and other solids which is actuated by a blind rivet type installation tool. A basic embodiment has an anchor component with bidirectionally deflectable fingers (20) and a concentrically situated and slidably housed actuator device which has a stem (30) and a force applying portion, anvil (40). After insertion into a bore in a first direction, the actuator device is pulled in the opposite direction, so that said anvil (40) interacts with said fingers (20) in a manner which causes said fingers (20) to first be deflected outward and into substantial contact with the wall of the bore, and with continued pulling of said anvil (40) in the opposite direction causes the end portions of said fingers (20) to deflect inward and behind said anvil (40), to couple the anchor structure with the bore.

Abstract: An anchor bolt for use in a hole in a base material is provided and includes a stud, a sleeve disposed about the stud and a retainer nut, disposed in operable communication with the stud and having a dimension measured from a central axis of the hole that is at least as large as a corresponding dimension of the hole.

Abstract: The invention relates to a fastener assembly 1 for use as a slave bolt. The fastener assembly can be tightened and released from the same side and comprises: a) a shank 2 having a bolt head 3 at one end; b) a sleeve 7 slidably arranged on the shank 2; c) a spring 6 to bias the sleeve on the shank 2; and d) an expander stem 9 which can be screwed into a threaded bore 4 which runs the length of shank 2, the stem 9 having an enlarged portion which spreads the fingers 8 of the sleeve so that they engage and clamp the articles to be fastened.

Abstract: A self-expanding and self-undercutting guard rail bolt includes a dowel having a guard rail fastening end and a ring. The fastening end is configured to be driven in rotation, and the ring is configured to rigidly connect to a first screwing end of the dowel by an incipient fracture portion. The self-expanding and self-undercutting guard rail bolt further includes a counter-dowel screwed to the dowel by a second screwing end. The counter-dowel includes an expansion cone, and an anti-rotation head having at least one edge which projects beyond a periphery of the dowel to prevent rotation of the counter-dowel about an axis of the guard rail bolt.

Abstract: An adjustable yield rock bolt that comprises an elongated tensile support member that interacts with at least one gouging member and a receiving member capable of receiving the elongated tensile support member and hold the gouging member segment there between, wherein the elongated tensile support member extends beyond the receiving member a length that corresponds to a predetermined amount of yield before ultimate failure. The bolt has adjustability by allowing for controlled yield by gouging of the elongated tensile support member for any length of displacement.

Abstract: A self-drilling masonry bolt including a body portion having a bolt member and an outer sleeve portion, a head portion and a drilling tip whereby, the self-drilling masonry bolt provides a simple and effective means for securing an item to cement, wood or any other suitable material without the requirement of multiple tools.

Abstract: An expansion dowel includes an anchor bolt (12) having a load application element (16) at a first end region (14) of the anchor bolt (12), and an expansion part (17) at a second free end region (15) of the anchor bolt (12), and an expansion sleeve (21) having an inner profile (22) with a region (23) having a surface roughness increasing in the direction of the first end region (14) of the anchor bolt (12), with the expansion part (17) having a conical section (18) widening toward the second free end region (15) of the anchor bolt (12) for expanding the expansion sleeve (18).

Abstract: A connector and method for joining one end of a first wood member such as a wood log or beam to a side of a second wood member involving metal sleeves secured in aligned holes in a respective member with a protruding one of the sleeve slidable into the other sleeve. A bolt is threaded into an internally threaded element on the inner end of the sleeve in the first member and advanced to pull the members together. The sleeves are secured in the holes with spike features driven out into the surrounding wood. Alternatively, a tee connector has a plate portion fitting into a slot extending through aligned holes in the plate and one end of the first member. A cross plate is held against the one side of the other member with thread fasteners.

Abstract: A wedge-type anchor assembly, capable of meeting cracked concrete testing standards, comprises an anchor bolt component and a substantially C-shaped expansion sleeve component annularly disposed about the anchor bolt component. A plurality of annular grooves, threads, or teeth are disposed only about the forward end portion of the expansion sleeve component, as opposed to throughout the entire axial length thereof, so that when the anchor bolt component is moved axially through the expansion sleeve component, the maximum interference area (M.I.A.) and maximum interference volume (M.I.V.) can be generated between the anchor bolt component and the expansion sleeve component in a controlled and predictable manner, as well as between the expansion sleeve component and the internal peripheral side wall portions of a concrete substrate or substructure can be generated so as to enhance pull-out resistance and reliability of the anchor assembly within the concrete substructure or substrate.

Abstract: A wedge-type anchor assembly, capable of meeting cracked concrete testing standards, comprises an anchor bolt component and a substantially C-shaped expansion sleeve component annularly disposed about the anchor bolt component. A plurality of annular grooves, threads, or teeth are disposed only about the forward end portion of the expansion sleeve component, as opposed to throughout the entire axial length thereof, so that when the anchor bolt component is moved axially through the expansion sleeve component, the maximum interference area (M.I.A.) and maximum interference volume (M.I.V.) can be generated between the anchor bolt component and the expansion sleeve component in a controlled and predictable manner, as well as between the expansion sleeve component and the internal peripheral side wall portions of a concrete substrate or substructure can be generated so as to enhance pull-out resistance and reliability of the anchor assembly within the concrete substructure or substrate.

Abstract: An anchoring device for insertion in a hole provided in a structure such as a wall (hollow or solid) comprises proximal and distal sections. The proximal section includes a head defining an aperture for receiving a fastener, and the distal section includes a pair of expandable wings displaceable between collapsed and expanded positions. Each wing is biased towards its expanded position such that the wings can engage the structural material delimiting the hole or a distal surface of the structure. The distal section comprises, proximally of the wings, a variable-length flexible portion for allowing the wings to engage the distal surface of the structure for various structure thicknesses. The distal section comprises, distally of the wings, a tip section adapted to spread outwardly when engaged by the fastener. The proximal section comprises a pair of legs each having a toothed rack for engaging the structural material.

Abstract: The present invention is directed to a blind fastener, usually a blind rivet, (10) comprising a mandrel (22) and an elongate cylindrical body (16) mounted on a stem (24) of such mandrel so as to extend co-axially about a central axis A of such blind rivet, the body (16) having a flange (18) at one end and a tail end (20) at an axially opposed end, for insertion through a hole in a workpiece, the mandrel having a mandrel head (26) in operative engagement with this tail end (20) for transmitting force thereto during setting of such fastener, wherein the body (16) has two different external diameters (d, D) and a radially extending shoulder (32) therebetween such that the external diameter (D) of the body adjacent to the flange (18) is greater than the external diameter (d) of the body adjacent to the tail end, wherein the body between this shoulder (32) and the flange is at least partially encased in a resilient, shock absorbing material (36).

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 combinational bolt which comprises a screw unit and a sleeve unit. The screw unit has a plurality of threads on a surface of a front terminal, the threads make the screw unit connect with a target object, another terminal of the screw unit forms a first concave portion. The sleeve unit, which is set inside the target object, also connects and surrounds the screw unit. A sink-proof portion is set on the surface of one terminal of the sleeve unit, the sink-proof portion makes the sleeve unit clamp onto the target object, and the outer surface of the sleeve unit has a plurality of strengthen circle units and a plurality of cut slots, and a second concave portion forms inside the sleeve unit, the first concave portion and the second concave portion clamp together.

Abstract: The present invention provides devices and methods for indicating or gauging the position of one or more holes in a workpiece. In one aspect of the present invention reusable devices that can be removably engaged with a bore or tapped hole in a workpiece for accurately indicating the center axis of the bore or tapped hole are provided. An exemplary device in accordance with the present invention includes an expandable shank, indicating surface, and driving head. The driving head can be used to install the device into a hole in a workpiece. The expandable shank can be expanded to positively engage the device with the hole in the workpiece and the indicating surface can be referenced, with a probe, to determine the center axis of the hole in the workpiece.

Abstract: An elongate fastener is provided for securing a pair of panels together wherein the panels includes respective bores therein. Each end of the fastener includes an expansible end portion thereon which is arranged to be received within the respective bore. A wedge member is mounted within each expansible end portion for longitudinal sliding movement between a disengaged position and an engaged position wherein the expansible end portions are expanded relative to the disengaged position. An actuator is located centrally between the expansible end portions for pivotal movement about an actuator axis which lies perpendicularly to a longitudinal axis of the fastener. The fastener permits a pair of panels to be mounted with one end of one panel abutted against the other panel wherein the actuator is accessible from a recessed installation aperture on an inner face of one of the panels. The resulting joint is secure while being hidden from view using a one-piece fastener.

Abstract: A temporary fastener includes a grip length indicator. By machining a flattened area into a body of the temporary fastener, by engraving an scale into the flattened area, and by attaching an indicator dot visible in the groove to a moving part of an internal assembly of the temporary fastener, the grip length of the installed temporary fastener may be read directly on the scale while the temporary fastener applies a clamp-up force to a structure. By using the temporary fastener of the present invention, it is possible to determine a fastener hole length while a temporary fastener is installed. Using the method for determining a fastener grip length of the present invention enables the effective determination of the correct fastener grip length for each particular fastener hole of a large structure, such as an aircraft airframe.

Abstract: A device for connecting a support, with a panel element is provided including a connecting element (1) with an upper part (3) that can be fastened to the panel element, lower part (4) that can be linked with the support and a neck-shaped intermediate section (5) is provided with locking elements (10) and extends through an engaging element (12) that can be inserted ma support opening (7). The intermediate section (5) is enclosed by an intermediate element (15) and is lockable with the locking elements (10). A sealing element acts upon the upper side of the support (2). The intermediate section (5) is provided with a first zone I and a second zone II of the locking elements (10). In a pre-assembled state, the first zone I, and in an assembled state, the second zone II of the locking elements (10) is locked with the counterlocking elements (22) of the intermediate element (15).

Abstract: The dowel's expansion bushing (2) is placed around a threaded rod (9) inserted in the bushing's (2) expansion core (3), between the strut (8) and the core (3). The bushing (2) includes a section (16) compressible along its centerline, which includes a shearing system (24) placed such that, after shearing, the bushing (2) is shortened along its centerline. The bushing also includes, on its section (25) next to the strut (8), coupling and axial holding spurs (50). The bushing (2) is composed of a cut sheet metal blank, rolled on itself, except for the part with the spurs (50).

Abstract: A Spring fastener with critical configuration of the barbs, which allow the extraction of the fastener without destruction of the slot and/or the fastener. This critical configuration of the barbs allows spring fasteners to be used in slots of various widths and prevents rattling, which would take place in the case of spring fasteners of the present state of the art. The critical configuration is based on the special dimensions and special shape of the barbs with regard to the parts and the slots involved in assemblies of the spring fasteners and the parts. Assemblies of miscellaneous parts connected together by means of such spring fasteners, as well as vehicles comprising such assemblies may be made.

Abstract: A Spring fastener with critical configuration of the barbs, which allow the extraction of the fastener without destruction of the slot and/or the fastener. This critical configuration of the barbs allows spring fasteners to be used in slots of various widths and prevents rattling, which would take place in the case of spring fasteners of the present state of the art. The critical configuration is based on the special dimensions and special shape of the barbs with regard to the parts and the slots involved in assemblies of the spring fasteners and the parts. Assemblies of miscellaneous parts connected together by means of such spring fasteners, as well as vehicles comprising such assemblies may be made.

Abstract: A drive rivet fastens a plurality of panel members together as a unit. The drive rivet is installed within preformed holes which are drilled or punched through each of the panel members. The drive rivet includes a head portion which abuts the outer surface of the first panel member when installed. A shank portion extends from the head portion and includes a plurality of expansible prongs on its distal end which protrude out from the opposite end of the panel members. The shank portion includes at least a first area of substantially constant diameter and a second area of decreased diameter less than that of the first area which is not in contact with the panel members when the drive rivet is received therein. A generally elongated bore is formed within the drive rivet which is adapted for receiving an expander pin.

Abstract: A nail structure comprises a wall nail casing a center of the wall nail casing being formed with a tapered central axial hole which is reduced toward a distal end thereof; two sides of the distal end of the wall nail casing being formed with respective slots; and one end of the central axial hole being an through opening and another end thereof being an inlet; a hammer nail capable of inserting into the central axial hole; and a plurality of semi-round enhancing ribs are on an inner surface of the central axial hole of the wall nail casing; a front end of each enhancing rib being reduced toward one inlet of the central axial hole for receiving the hammer nail easily.

Abstract: The clip 1 comprises a hollow bushing 6 with a flange 10 and a shank 11, and a pin 5 with a shank 9 inserted into the bushing 6. The pin shank 9 is inserted into the bushing shank 11 to enlarge the bushing shank 11 so workpieces 2, 3 are connected to each other by the enlarged section of the bushing shank 26 and the bushing flange 10. A guide 13 extending from the end of the bushing shank so the pin shank is inserted into the bushing shank 11 without enlarging the bushing shank is formed in the end of the pin shank 5. The guide 13 has a large diameter section 14 larger than the end of the bushing shank. The diameter of the large diameter section 14 is formed so as to be larger than the diameter of a thick section 26 of the creep-deformed bushing shank when enlarged by the pin shank.

Abstract: A device (1) for connecting first and second components (2, 3) which lie at a spacing from one another by clamping by a spacer (7), which is disposed in a spacing region, and a clamping piece (15) which clamps the two components (2, 3) with respect to one another, the securing actuation of the clamping piece (15) initially displacing the spacer (7) from a spaced position to a bearing position with respect to the second component (3) and then fixing the device to the first component (2) by clamping elements (13) which move into engagement against the wall of an insertion cavity (6) of the first component (2), wherein the spreading elements (13) are associated with the spacer (7).

Abstract: An expansion dowel having a cylindrical expansion body (1) having a through-bore (3) and formed of at least two segments (4a, 4b) connected with each other, an additional expansion element (7) located in a recess (8) formed in an outer profile (6) of the expansion member (1) and having a radial depth of the recess (8) diminishing in a setting direction (S) of the expansion dowel; the additional expansion element (7) having a radial extent at least partially greater than a maximal dept of the recess (8).