Abstract: A rod coupling remover device is a device having a body having a top end, a bottom end, and a shaft opening running from the top end and the bottom end, a bifurcated threaded portion about the bottom end of the body, a retractable wedge, a shaft opening running from a top end to a bottom end of the body, and a threaded shaft member coupled to the retractable wedge at the bottom end of the body. The threaded shaft member passes through the shaft opening of the body in which the retractable wedge is movable into and out of the shaft opening of the body.

Abstract: A connector housing includes an accommodation space defined by four walls and formed with an insertion port. The four walls include a first wall extending in a first plane and a second wall extending in a second plane perpendicular to the first plane, the first wall is connected with the second wall at a corner of the connector housing. A first positioning groove is disposed in an edge of the first wall proximate to the insertion port and a first positioning tooth is disposed on an edge of the second wall. The first positioning tooth extends in the first plane by vertically bending and engaging within the first positioning groove. The first positioning tooth and the first positioning groove have a first locking feature preventing the first positioning tooth from being disengaged from the first positioning groove in a direction perpendicular to the second plane.

Abstract: A bayonet coupling for mounting of a tool on a drive shaft of a machining unit. The drive shaft is connected to the tool via a bayonet coupling, which includes two coupling parts. The one coupling part is provided with a receiving groove for an engaging tab placed on the other coupling part. The receiving groove has a first section with an extension parallel to the axis of rotation and the second section of the receiving groove has an extension transverse, perpendicular, to the axis of rotation, so that the tool is driven via the engagement of the bayonet coupling.

Abstract: The present invention relates to an anchoring system of counterweights for washers and washer/dryer combos based on the presence of a plurality of tubular divaricable pins (40, 41,42) on the external walls of the plastic molded tubs (1) that, after being inserted into through holes (21a) obtained on the said counterweights, are designed to receive suitable divaricating inserts (40b, 41b, 42b) to prevent uncoupling from the holes.

Abstract: A clip includes a grommet, a pin, and a thin connection portion integrally connecting the grommet and the pin. The grommet includes a pair of expandable leg pieces and has a V-shape. The pin can relatively move inside the grommet. A through hole for guiding a top portion of the pin is defined at a tip of the V-shape of the grommet. The thin connection portion is located between an edge of the top portion of the pin and an edge of the through hole. The thin connection is cut when the pin is pushed into the inside of the grommet.

Abstract: A ball socket for connection with a wall or plate type structure resists accidental pull-out therefrom. The ball socket includes a socket cup for retaining a ball stud. Snap locks extend from the ball socket to provide a mechanical connection with the structure. A sleeve located initially in the socket cup is driven between the snap locks as the ball stud is placed in the socket cup. This prevents the snap locks from moving in a manner that allows the ball socket to be accidentally pulled from the structure. The structure may be a wall in a headlamp assembly.

Abstract: A mounting device includes a first component and a second component. The first component has a forwardly disposed nose, a rearwardly disposed and outwardly flared cutting member, and a bore extending through the nose and cutting member and which is threaded at least along part of its length. The second component comprises a tube for fitting over the nose of the first component. In use, when the tube is fitted over the nose 15 and forced in an axial direction against the cutting member the latter progressively splits the tube substantially parallel to its axis into a plurality of “petals” which become mutually splayed out radially with respect to the axis of the bore.

Abstract: Device for mounting blind on an element (57a, 58a) provided with an opening (Ua) having:a) a first piece (1) having at least one holding lug (4) having a first projecting part and a second projecting part (9) disposed downstream of the said first projecting part in the direction of engagement,b) a second piece (20) provided with a foot having a first portion having a projecting part, a second portion (25) having a projecting part (26) and a breakable part,the first and second pieces being adapted to cooperate so that, once the first piece has been inserted until it abuts in the opening, a driving of the foot with respect to each holding lug produces, when the first projecting part of the first piece and the projecting part of the first portion meet, a breaking of the breakable part which enables the projecting part of the second portion to come up against the second projecting part of the first piece and to bend each holding lug around a first edge (Ra) if the edge is situated downstream of the first projecti

Abstract: An expansion anchor including a sleeve-shaped anchor body (1, 21, 31, 41) having a through-bore (6, 26, 36, 46), an expansion region (4, 24, 34, 44) with longitudinal slots (5, 25, 35, 45) and a rear section (2, 22, 32, 42) provided with a load application element (3, 23, 33, 43), and an expansion member (7, 27, 37, 47) located in the through-bore (6, 26, 36, 46) and axially displaceable in the through-bore (6, 26, 36, 46) for radially expanding the expansion region (4, 24, 34, 44), with the expansion member (7, 27, 37, 47) being formed as a sheet metal stamped part having, at least regionwise, a dimension exceeding a dimension of a portion of the through-bore (6, 26, 36, 46) associated with the expansion region (4, 24, 34, 44).

Abstract: Lettering plate (10) which is to be attached to the outside of a lattice jacket of a pallet container has a lower support edge (14) which is flanged or bevelled to the outside. The lower support edge abuts horizontal lattice rod (8) and reaches behind it. Two side edges (15, 16) of the lettering plate are flanged to the outside for resting on two vertical lattice rods (9). Openings (18) are provided in center section (17) of two side edges (15, 16) to hold horizontal lattice rod (8). The lettering plate (10) also has an upper edge (19) which is made as a clawed edge and which in the mounted state fits behind horizontal lattice rod (8) thereby resiliently bracing plate (10) against horizontal lattice rod (8). The horizontal lattice rod abuts the back of the plate in a middle plate section. The lower and upper edge (14, 15) have, depending on the size of lettering plate (10) and the grid division of the lattice jacket, one or more openings for holding one or more vertical lattice rods (9).

Abstract: Anchor unit of this invention is provided with a plug which is driven into an anchor socket or sleeve to expand its split end portion by rotating a bolt which is engaged with the anchor socket or the plug by threads, in a predetermined direction. In one embodiment, the plug is a separable end portion of the bolt which is movable together with a remaining portion of the bolt when the bolt is rotated in the above described predetermined direction and twisted off or separated from the remaining portion when the bolt is rotated in a direction opposite to the above described predetermined direction.

Abstract: The expansion dowel includes an expansion sleeve (1) and an expanding member (5). The expansion sleeve 1 is provided with a bore (2) tapering in the setting direction as well as with open ended longitudinal slots (3). The expanding member (5) has a blind bore (6) open towards the setting side and has a lug (7) projecting from same at its opposite end, wherein the cross-sections of lug (7) and blind bore (6) are matched in such a way to one another, that a rated break point or failure point is formed. The force dependent response of this rated break point leads to a force dependent expansion while maintaining the driving or advance travel (X).

Abstract: The expansible metal anchor (1) for anchoring in a hole drilled in a component includes a shank part (2) and an expander cone (4) having a polygonal cross-section defining several faces (13) at its front end. On each face (13) of the expander cone (4) an expansible segment (5) is arranged spaced from that face by a gap (7) corresponding approximately to the distance (8) by which the expansible segments (5) project radially from the shank part (2). Each expansible segment (5) is joined to the shank part (2) at its end face directed towards the shank part (2) by web members (6, 6') constituting predetermined break points. As the expansible anchor is driven into the hole drilled in the component, the web members (6,6') break off, so that the expansible segments (5) are displaceable on the faces (13) of the expander cone.

Abstract: An expansion anchor received within a predrilled bore for mounting a platelike panel to a portion of stratum in which the bore is drilled and including a bolt having a head on a lower end thereof, an upper portion, distal the head, defining a set of right hand threads thereon and a lower portion, intermediate the upper portion and the head, defining a set of left hand threads thereon. A destructible thrust nut having at least one groove therein is threadably connected to the lower portion and moves upwardly thereon when the rod is rotated in a clockwise direction. A cutting member, having an annular base supported by the thrust nut for sliding movement along the bolt and a plurality of cutting fingers connected to the base in divergent relation to the bolt, is urged upwardly by the thrust nut when the rod is rotated in the predetermined direction.

Abstract: A connector for assembly of sieve elements consists of a fastener, a securing pin and a mounting element, The fastener is inserted in aligned apertures of the sieve element and the mounting element. A securing pin is inserted into an axial bore of the fastener to secure the connection. The fastener has an upper and a lower collar. Membranes extend longitudinally along the fastener body and are broken out when the securing pin is inserted to the axial bore of the fastener.

Abstract: A blind setting rivet slidingly joined to a rivet installation tool for rotation therewith for drilling the rivet through walls, panels or components of a member. The rivet includes a shank threadingly joined to a sleeve thereon, the shank having a drilling bit on a forward end thereof. The sleeve has an enlarged flange on a rear end thereof to prevent the sleeve from passing entirely out through the hole formed in the walls, panels or components, and also to prevent the sleeve from rotating upon engagement with the walls, panels or components when the shank is rotated by the tool, thus causing the drilling bit to deform the forward end of the sleeve to form an enlarged collar to capture the sleeve within the hole formed in the walls, panels or components by the drilling bit, where the sleeve joins the walls, panels or components together. The tool has a non-circular opening to receive a non-circular mandrel section of the shank so that the tool can rotate the shank.

Abstract: A three-piece fastener includes a bolt with a shank having a concentric opening in its threaded end, a nut adapted to fit over the threaded end of the bolt, and a wedge member which is insertable into the end opening of the bolt for expanding and thereby securing it. The threaded end of the bolt is axially slotted to facilitate its expansion.The outer diameter of the wedge member is smaller than the outer diameter of the threaded end of the bolt. When the bolt is to be inserted into an opening of a structure in order to accomplish a fastening action, the wedge member is first loosely inserted into the end opening of the bolt. Then when the bolt and wedge are passed through the opening, the nut is applied to the end of the bolt and is tightened. Thereafter, the wedge is tightened in order to expand the end of the bolt.The end opening of the bolt has interior threads, and is threadedly engaged by the wedge member, but in an opposite rotational sense to that in which the nut is applied to the bolt.

Abstract: An expansion peg is provided including a tubular socket threaded at one end, and having a split and expandable portion at the other end thereof which is disposed inside the socket. A first wedge intended to come into abutment against the bottom of an anchorage hole and a second wedge detachably secured to the first wedge and intended, under the action of a striking tool, to become disengaged from the first wedge and to cooperate therewith for causing expansion of the split end of the socket, is disposed within the socket and split end portion thereof.

Abstract: An expansion dowel is made up of an expansion sleeve and an expansion body with a radially outer conically shaped surface. To expand the sleeve, the expansion body is pulled into the leading end of the sleeve. The leading end of the sleeve is connected to the expansion body by two elongated webs. A bridge section on the end of each web forms the connection to the expansion body and the bridge section is breakable under expansion conditions. The expansion dowel can be formed from a single blank of sheet metal in a forming operation.

Abstract: A fastener for securing two objects or structures together in a predetermined relationship. The fastener has a fastener body including a spacer which defines a predetermined distance between the two objects. A first locking element is attached to one side of the spacer and a second locking element is attached to the other side of the spacer. The fastener body is adapted to receive a plunger which when actuated will cause the locking elements to secure the first object and second object a predetermined distance apart.

Abstract: An expansion dowel includes an axially extending expansion sleeve and an expansion member rolled from a section of sheet metal. The sleeve has a leading end and a trailing end and the inside surface of the sleeve is threaded for an axially extending section from the trailing end. The thread is formed before the sheet metal is rolled. To assure there is no misalignment of the thread along the butt joint, tangs and recesses are formed along the edges of the butt joint so that the edges interengage one another when the sheet metal section is rolled. By interengaging the butt joint edges, the sleeve does not expand circumferentially when a bolt is threaded into the trailing end of the sleeve.

Abstract: An axially extending anchoring bush has a pair of opposite ends with a blind borehole extending axially into the bush from one end with the blind borehole arranged to receive and secure an anchor bolt. The bush has at least three generally axially extending slots ranging from the end opposite the end in which the blind borehole is formed toward the other end. Each slot is located in a different plane with the planes extending obliquely of the axis of the bush. Slots extend inwardly from the axially extending outer surface of the bush and intersect inwardly of the outer surface. The planes of the slots define the axially extending sides of a pyramidally shaped expansion member located inwardly of the slot.

Abstract: An expansion dowel assembly is made up of an axially elongated generally cylindrically shaped dowel body and at least one wedge-shaped expansion member formed monolithically with the dowel body. The dowel body has a first or leading end which is inserted first into a borehole within which the dowel body is to be anchored and an opposite second end. A severable web connects the expansion member to the first end of the dowel body. Before insertion into a borehole, the expansion member projects outwardly from the exterior surface of the dowel body. When the expansion dowel assembly is inserted into a borehole, the web is broken and the expansion member, now separated from the dowel body, is displaced away from the first end within a wedge-shaped recess in the exterior surface of the dowel body.

Abstract: The disclosure concerns a fixing device for securing fasteners such as bolts into concrete or other similar material. The device comprises a sleeve member (2, 4) having a block portion (6) in which a nut (14) is set. The block portion (6) has a frusto-conical extension portion (16) joined by shearable links (18) to an intermediate portion (20) of the member which has an internal frusto-conical surface (22) complementing the extrusion portion (16) of the block portion. Tightening the bolt shears the links in the usual way. According to the present invention the device is moulded in two longitudinally divided portions (2) and (4), hinged together by a plastics hinge (10) adjacent the block portion (6). In the as-moulded conditions the portions (2, 4) are arranged end-to-end, but are hinged together to form the device ready for use.

Abstract: A metal expansion dowel is made up of an axially elongated cylindrically shaped expansion sleeve and an expansion element formed monolithically with the sleeve. The expansion sleeve has a leading end and a trailing end. The sleeve has an opening with the opposite edge surfaces extending in the axial direction converging toward the leading end. The expansion element is located in the opening and is secured to the sleeve by a separable web. The expansion element is wedge-shaped and narrows in the leading end direction. An inwardly projecting stop is formed in the expansion element. When an axial force is directed toward the leading end against the stop, the web is separated from the sleeve and the expansion element is displaced axially toward the leading end of the sleeve moving along the opposite edge surfaces of the opening and widening the sleeve.

Abstract: A friction clutch wherein the leaf springs which confine the pressure plate to axial movement relative to the housing are secured to the pressure plate by fastening devices having solid or tubular connecting elements a first portion of each of which is anchored in a discrete blind bore of the pressure plate and each of which extends outwardly through and beyond an opening in the respective leaf spring. Those portions of the connecting elements which extend outwardly beyond the openings of the respective leaf springs are deformed to constitute rivet heads which overlie the leaf springs and hold them against movement away from the respective surface of the pressure plate. Such mode of fastening the leaf springs to the pressure plate allows for a reduction of the radial dimensions and weight and enhances the safety of the clutch, especially as concerns the bursting strength of the pressure plate.

Abstract: A split-setting pull-type blind-riveting assembly comprising a hollow rivet and a mandrel. The underside of the mandrel head is frusto-conical and terminates at flat surfaces normal to the mandrel stem. A portion of the mandrel stem adjoining said plane is squared off so that its corners deform the rivet shank before the underside of the mandrel head splits it into petals. Reliable splitting of the rivet shank into uniform petals is thereby reliably achieved.

Abstract: The axially movable pressure plate of a friction clutch for motor vehicles is non-rotatably secured to the housing by a set of leaf springs each of which has an end portion overlying that surface of the pressure plate which faces away from the clutch plate. The end portion of each leaf spring has an opening in register with the open end of a blind bore in the surface of the pressure plate. Such end portions of the leaf springs are permanently fastened to the pressure plate by tubular connecting elements having (a) enlarged end portions overlying those sides of the leaf springs which face away from the pressure plate and (b) main portions which extend through the respective openings and into the registering blind bores and are radially expanded into pronounced frictional engagement with the pressure plate.

Abstract: An expansion bolt, particularly adapted for supporting the roof of a mine tunnel, includes an elongate stud having distal and proximal threaded ends. Coaxially mounted on the stud near the distal end is an expansion sleeve that is axially divided into a plurality of circumferentially-spaced sleeve segments. A cam element is threadedly attached to the distal stud end. The cam element is formed of a sheet metal stamping; and includes an annular collar with a plurality of circumferentially-spaced fingers extending proximally from the periphery of the collar. The fingers also taper radially outwardly to give the cam element a frusto-conical configuration. The proximal ends of the fingers engage the interior surface of the sleeve near the distal end of the sleeve. The sleeve is constrained from axial movement on the stud, and the stud is rotatable independently of the cam element and the sleeve. The proximal end of the sleeve has a nut adapted for the application of a torque thereto.

Abstract: An anchor nut fastener device is of the type comprising a tubular body portion (11) and a nut portion (12) which tapers externally, whereby when the body portion is inserted in a suitable hole in a workpiece and the nut portion (12) is forced into the body portion (11), the taper on the nut portion (12) both radially expands the body portion into engagement with the wall of the workpiece hole and also engages the nut portion in the body portion, thereby to provide an anchor nut in the workpiece. The external taper on the nut portion (12) comprises a first, relatively long, part (24) of a relatively shallow taper and a second, relatively short, part (26) of relatively steep taper further away from the body portion than is the first part and extending radially outwardly of the first part. The end of the body portion (11) is enlarged to provide a head (10), and a countersink (14) into which the leading end of the nut can be enlarged.

Abstract: A mechanical anchor including an expansion shell and a camming plug positioned in the shell is threaded onto the end of a mine roof bolt. A roof support plate is carried on the opposite end of the bolt. The mechanical anchor is inserted in a bore hole drilled in a rock formation with one or more resin cartridges advanced by upward movement of the bolt to the end of the bore hole. The cartridge is ruptured by upward thrust and rotation of the bolt to release the resin components for mixing. A stop device extending through the plug abuts the end of the bolt to prevent axial movement of the plug on the bolt when the bolt is rotated in a preselected direction to mix the resin components before the shell is expanded. Rotation of the bolt continues without expansion of the shell for a period of time to permit formation of a curable resin mixture.

Abstract: A fastener comprises a base formed of a flange and a plurality of leg pieces and a screw-receiving member adapted to be embraced between the leg pieces, whereby it is secured onto a given panel by a procedure which involves inserting the leg pieces into a fitting hole bored in advance in the panel, then inserting a fastening screw through a through hole formed in the flange into a screw hole formed within the screw-receiving member, imparting a helical motion of the fastening screw thereby drawing the screw-receiving member toward the flange, consequently causing the leg pieces to be spread outwardly within the fitting hole of the panel and brought into tight engagement with the fitting hole and, at the same time, enabling the fastening screw to be secured onto the panel through the medium of the base.

Abstract: A fastener for panels, comprising a basal body provided with a flange portion having a circular perforation bored in the central portion thereof for permitting insertion therethrough of a screw and with a pair of legs extended downwardly from the lower surface of the flange portion so as to be opposed to each other across the line drawn perpendicularly through the center of the circular perforation, and a screw receiving body disposed between the opposed legs, provided in the upper portion thereof with a pair of receiving pieces protruding sideways out of the openings formed between the opposed legs and further provided with a screw receiving hole in the axial portion coinciding with the perpendicular line drawn through the center of the perforation. The screw receiving body is provided with engaging protuberances one each on the lateral surfaces thereof opposite the legs and the legs are provided with oblong guide holes adapted to receive the engaging protuberances.