Abrégé

The Invention describes a pair of wedge lock washers (1) with a first wedge (5) lock washer (2) and with a second wedge lock washer (3). The two washers (2, 3) each have a fastener (6, 6.1) opening arranged in alignment with one another, a wedge surface structure which engages with one another on their mutually facing surfaces, and clamping structures (9, 9.1) on their surfaces facing away from one another. One of the two washers (2) has a larger outer diameter than the other washer (3), and has a rotary drive contour (7) on the radial outside for torque support of a clamping tool. The clamping structures of the washer (2) with the larger diameter are arranged at an axial distance from the disk surface in the inner disk section (12) thereof and are designed for the form-fitting embossing of the same into the surface of a component (16) adjacent thereto. The apexes (5) of the wedge surface structuring are located as positive structures on the mutually facing surfaces of the wedge lock washers (2, 3) in a respective plane. The planes of the disk surfaces of the wedge lock washer (3) with the smaller diameter are arranged parallel to one another.

Classes IPC  ?

• F16B 5/02 - Jonction de feuilles ou de plaques soit entre elles soit à des bandes ou barres parallèles à elles par organes de fixation utilisant un filetage
• F16B 39/24 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par rondelles, rondelles à ressort ou plaques élastiques qui bloquent contre l'objet
• F16B 43/00 - Rondelles ou dispositifs équivalentsAutres dispositifs de support pour têtes de boulons ou d'écrous

Abrégé

A pair of wedge lock washers with a first wedge lock washer and with a second wedge lock washer. The two washers each have a fastener opening arranged in alignment with one another, a wedge surface structure which engages with one another on their mutually facing surfaces, and clamping structures on their surfaces facing away from one another. One of the two washers has a larger outer diameter than the other washer, and has a rotary drive contour on the radial outside for torque support of a clamping tool. The clamping structures of the washer with the larger diameter are arranged at an axial distance from the disk surface in the inner disk area thereof and are designed for the form-fitting embossing of the same into the surface of a component adjacent thereto. The apexes of the wedge surface structuring are located as positive structures on the mutually facing surfaces of the wedge lock washers in a respective plane. The planes of the disk surfaces of the wedge lock washer with the smaller diameter are arranged parallel to one another.

Classes IPC  ?

• F16B 39/24 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par rondelles, rondelles à ressort ou plaques élastiques qui bloquent contre l'objet
• F16B 39/282 - Blocage par dispositifs dont les surfaces de travail ont une forme particulière, p. ex. écrous à encoches ou à dents

Abrégé

A releasable expansion bolt having an expansion sleeve with a first end, a second end, a cylindrical outer lateral surface and, on the inside, an inner cone section having a cross-sectional area that tapers towards the second end; a cone bolt with a cone section which interacts with the inner cone section for expanding the expansion sleeve as a result of an axial relative movement of the expansion sleeve and the cone bolt; and a tensioning device connected to the first end section of the expansion sleeve for adjusting the cone bolt in the axial direction relative to the expansion sleeve. The tensioning device comprises a pressure bolt held in a form-fitting manner in the axial direction in the area of the first end section of the expansion sleeve and adjustable in the axial direction relative to the expansion sleeve. An outer end of the pressure bolt has a foot opposite the driving contour that acts on the cone bolt when tightening the pressure bolt to expand the expansion sleeve. The end surface of the cone bolt facing the tensioning device has at least one connection contour for connecting, in a form-fitting manner in the axial direction, a connection part of a release tool for releasing the expansion bolt. Also described is a connection arrangement and a method for forming such a connection arrangement.

Classes IPC  ?

• F16B 13/06 - Chevilles ou autres dispositifs fixés à des parois ou autres emplacements par insertion dans des trous préparés à cet effet avec parties s'agrippant dans le trou ou derrière la paroi après insertion et combinées avec un manchon extensible
• F16B 5/02 - Jonction de feuilles ou de plaques soit entre elles soit à des bandes ou barres parallèles à elles par organes de fixation utilisant un filetage

Abrégé

An expansion bolt comprises a bolt having an end-face anchoring means for the tension-resistant anchoring of the bolt on or in a first assembly part, which bolt has a truncated-cone-shaped cone section and a bolt threaded section in its end section opposite to the anchoring means with a nut screwed thereon, an expansion sleeve having a cylindrical lateral surface and an inner cone contour interacting with the cone section of the bolt, and a clamping device supported on a second assembly part for widening the expansion sleeve and applying an axial clamping force to the assembly parts to be connected together. The cone section of the bolt is tapered in the direction toward its anchoring means and the inner cone contour of the expansion sleeve is tapered in the same direction. The expansion sleeve bears a clamping flange protruding outward in the radial direction on its end opposite to the inner cone contour. The clamping device comprises a clamping ring having an axial passage opening. The expansion sleeve engages through this passage opening, permitting an adjustability of the expansion sleeve in relation to the clamping ring in the axial direction, and protrudes with its clamping flange beyond a peripheral region of the clamping device enclosing the passage opening. The clamping ring also comprises multiple pressure bolts arranged circumferentially distributed, which mesh with their thread in internally threaded holes extending through the clamping ring in the axial direction and act with their bases indirectly or directly against the second assembly part to widen the expansion sleeve and apply an axial clamping force to the assembly parts. Furthermore, a connection assembly having such an expansion bolt is described.

Classes IPC  ?

• F16B 3/06 - Assemblages du type par clavetteClavettes utilisant des manchons coniques de serrage
• F16B 31/04 - Assemblages à vis spécialement modifiés en vue de résister à une charge de tractionBoulons de rupture maintenant constante la charge de traction
• F16B 19/02 - Chevilles ou manchons pour positionner les parties de machines, p. ex. goupilles coniques à encoche, goupilles de montage, manchons, bagues excentriques d'ajustement

Abrégé

A torque wrench for multiple bolts or nuts comprises multiple drive spindles arranged annularly around a center and equipped or able to be equipped at the end with respective torque-applying tools, and a ratchet drive, associated with each drive spindle and driven by a hydraulic piston drive, for driving the drive spindles. The drive spindles are rotatably mounted and held in a drive block and have a drive portion at each end, which protrudes from the drive block. The drive sections of the drive spindles serve to bear the torque-applying tools on one side of the drive block, in which drive block the pistons of the piston drives are routed in cylinder housings, such that said pistons are translationally displaceable in both directions. The piston rods are kinematically connected to the ratchet lever for transferring a forward stroke movement and a return stroke movement to respective ratchet levers with pawls. The drive block has at least one fluid distribution cavity in its center area, into which open multiple fluid ducts located in the drive block, wherein a fluid connection between the fluid distribution cavity and a first fluid input of a cylinder housing is established by each fluid duct. A fluid distributor with an annular duct connected to a fluid supply duct is arranged on a flat side of the drive block as a fluid distribution cavity, into which multiple fluid ducts open, wherein a fluid connection between the fluid distribution cavity and a second fluid input of a cylinder housing is established by each fluid duct.

Classes IPC  ?

• E21B 19/16 - Branchement ou débranchement des accouplements de tubes ou de joints
• B23P 19/06 - Machines pour mettre ou retirer les vis ou les écrous
• E21B 17/08 - Joints de tubage

Abrégé

A torque wrench for multiple bolts or nuts comprises multiple drive spindles that are arranged annularly around a center and are equipped or able to be equipped at the end with respective torque-applying tools, and a ratchet drive, associated with each drive spindle and driven by means of a hydraulic piston drive, for driving the drive spindles. The torque wrench for multiple bolts or nuts also comprises an actuator unit for inducing a rotary movement in the drive spindles, having an actuating wheel mounted rotatably about the axis of the center of the annular arrangement of the drive spindles as drive wheel, which drives respective output wheels fitted on the drive spindles, wherein the driving movement of the actuating wheel is transmitted to the drive spindle via respective torque limiters.

Classes IPC  ?

• B25B 23/14 - Agencement pour limiter le couple de blocage ou pour indiquer le couple des clés ou des tournevis
• B23P 19/06 - Machines pour mettre ou retirer les vis ou les écrous
• B25B 21/00 - Outils portatifs à moteur pour serrer ou desserrer les vis ou les écrousAccessoires pour appareils à percer ayant les mêmes buts

Abrégé

A torque wrench for multiple bolts or nuts comprises multiple drive spindles that are arranged annularly around a center and are equipped or able to be equipped at the end with respective torque-applying tools, and a ratchet drive, associated with each drive spindle and driven by means of a hydraulic piston drive, for driving the drive spindles. In addition to the ratchet drive, a locking ratchet for locking the drive spindle acts on each drive spindle to keep it from turning back when exercising a return stroke movement of the drive ratchet. The locking ratchets are arranged in a locking bracket, which is penetrated by the drive spindles. The locking bracket has means for loosening the locking ratchets.

Classes IPC  ?

• B23P 19/06 - Machines pour mettre ou retirer les vis ou les écrous
• B25B 21/00 - Outils portatifs à moteur pour serrer ou desserrer les vis ou les écrousAccessoires pour appareils à percer ayant les mêmes buts
• B25B 23/145 - Agencement pour limiter le couple de blocage ou pour indiquer le couple des clés ou des tournevis spécialement adapté aux clés ou tournevis fonctionnant avec un fluide

Abrégé

A multiple screwdriver (1) comprises a plurality of drive spindles (5) that are arranged annularly around a centre and are equipped or able to be equipped at the end with a respective clamping tool (8), and a ratchet drive, assigned to each drive spindle (5) and driven by means of a hydraulic piston drive, for driving the drive spindles (5). The multiple screwdriver (1) also comprises a feed unit (4) for inducing a rotary movement in the drive spindles (5), having an adjusting wheel (45), mounted in a rotatable manner about the axis of the centre of the annular arrangement of the drive spindles (5), as drive wheel, which drives a respective output wheel (48) fitted on the drive spindle (5), wherein the drive movement of the adjusting wheel (45) is transmitted to the drive spindle (5) with interconnection of a respective torque limiter.

Classes IPC  ?

• B23P 19/06 - Machines pour mettre ou retirer les vis ou les écrous
• B25B 21/00 - Outils portatifs à moteur pour serrer ou desserrer les vis ou les écrousAccessoires pour appareils à percer ayant les mêmes buts
• B25B 13/46 - Clés à écrousClés anglaises du type à cliquet, assurant le libre retour de la course de la poignée
• B25B 23/14 - Agencement pour limiter le couple de blocage ou pour indiquer le couple des clés ou des tournevis

Abrégé

A multiple screwdriver comprises a plurality of drive spindles (5) that are arranged around a centre and are equipped or able to be equipped at the end with a respective clamping tool (8), and a ratchet drive, assigned to each drive spindle (5) and driven by means of a hydraulic piston drive, for driving the drive spindles (5). In addition to the ratchet drive, a locking ratchet (29) acts on each drive spindle (5) in order to prevent the drive spindle (5) from turning back when a return stroke movement of the drive ratchet is exerted. The locking ratchets (29) are arranged in a locking carrier (28) through which the drive spindles (5) pass. The locking carrier (28) has means for releasing the locking ratchets (29).

Classes IPC  ?

• B23P 19/06 - Machines pour mettre ou retirer les vis ou les écrous
• B25B 13/46 - Clés à écrousClés anglaises du type à cliquet, assurant le libre retour de la course de la poignée
• B25B 21/00 - Outils portatifs à moteur pour serrer ou desserrer les vis ou les écrousAccessoires pour appareils à percer ayant les mêmes buts
• B25B 23/14 - Agencement pour limiter le couple de blocage ou pour indiquer le couple des clés ou des tournevis

Abrégé

A multiple screwdriver (1) comprises a plurality of drive spindles (5) that are arranged around a centre and are equipped or able to be equipped at the end with a respective clamping tool (8), and a ratchet drive, assigned to each drive spindle (5) and driven by means of a hydraulic piston drive, for driving the drive spindles (5). The drive spindles (5) are mounted and held in a rotatable manner in a drive block (2) and have at each end a drive portion (7, 7.1) protruding from the drive block (2). The drive portions (7, 7.1) of the drive spindles (5) serve, on one side of the drive block (2), to carry the clamping tools (8), in which drive block (2) the pistons (3.1) of the piston drives are guided in cylinder housings (15) so as to be adjustable in translation in both directions. In order to transmit a forward stroke movement and a return stroke movement to a respective ratchet lever (14) having an entraining claw (17), the piston rods (13) are connected kinematically to the ratchet lever (14). The drive block (2) has, in its central region, at least one fluid distributor cavity (18, 24), into which a plurality of fluid ducts located in the drive block (2) lead, wherein a fluidic connection between the fluid distributor cavity (18, 24) and a first fluid inlet of a cylinder housing (15) is established by each fluid duct. Arranged on a flat side of the drive block (2) is a fluid distributor (25) having an annular duct (26), connected to a fluid feed duct, as fluid distributor cavity, into which fluid distributor cavity (26) a plurality of fluid ducts lead, wherein a fluidic connection between the fluid distributor cavity (26) and a second fluid inlet of a cylinder housing (15) is established by each fluid duct.

Classes IPC  ?

• B23P 19/06 - Machines pour mettre ou retirer les vis ou les écrous
• B25B 13/46 - Clés à écrousClés anglaises du type à cliquet, assurant le libre retour de la course de la poignée
• B25B 21/00 - Outils portatifs à moteur pour serrer ou desserrer les vis ou les écrousAccessoires pour appareils à percer ayant les mêmes buts
• B25B 23/14 - Agencement pour limiter le couple de blocage ou pour indiquer le couple des clés ou des tournevis

Abrégé

A screw fastener arrangement comprising a screw fastener, with a head and a shank, and at least one washer on the shank. A coupling sleeve is in the washer opening through which the shank passes, the coupling sleeve having a U-shaped profile which opens radially outward and is formed by two flanges spaced from each other and protruding radially outward, the coupling sleeve being held interlockingly with the at least one washer by the flange in the direction of the longitudinal axis of the washer opening. The coupling sleeve has clamping catches projecting radially inward and elastically adjustable in the direction of their longitudinal axis against the interior wall of the coupling sleeve, which, using their free end, engage in an undercut of the screw fastener, acting in a longitudinally axial direction to the coupling sleeve. Also disclosed is a washer assembly for such an arrangement.

Classes IPC  ?

• F16B 39/24 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par rondelles, rondelles à ressort ou plaques élastiques qui bloquent contre l'objet
• F16B 43/00 - Rondelles ou dispositifs équivalentsAutres dispositifs de support pour têtes de boulons ou d'écrous
• F16B 39/282 - Blocage par dispositifs dont les surfaces de travail ont une forme particulière, p. ex. écrous à encoches ou à dents

Abrégé

The invention relates to an expansion bolt 1 comprising a bolt 2 with an end-face anchoring means 6 for anchoring the bolt 2 on or in a first assembly part 1 in a tension-resistant manner, said bolt 2 having a truncated conical cone section 8 and a threaded bolt section 7 in the bolt end portion, which lies opposite the anchoring means 6, with a nut 5 screwed thereon, an expansion sleeve 3 with a cylindrical lateral surface and with an inner conical contour 27 which interacts with the cone section of the bolt 2, and a clamping device 4 which is supported on a second assembly part 22 for expanding the expansion sleeve 3 and for applying an axial clamping force to the assembly parts 21, 22 to be connected together. The cone section 8 of the bolt 2 tapers in the direction towards the anchoring means 6, and the inner cone contour 27 of the expansion sleeve 3 tapers in the same direction. The expansion sleeve 3 has a clamping flange 16, which protrudes outwards in the radial direction, on the expansion sleeve end opposite the inner conical contour 27. The clamping device 4 comprises a clamping ring 17 with an axial through-opening 18, wherein the expansion sleeve 3 passes through the through-opening 18 so as to permit the expansion sleeve 3 to be adjusted in the axial direction relative to the clamping ring 17, and the clamping flange 16 of the expansion sleeve protrudes beyond a clamping device 4 edge region which surrounds the through-opening. The clamping device also comprises multiple pressing bolts 19 which are distributed over the circumference, the thread of which meshes with inner threaded bores that pass through the clamping ring 17 in the axial direction, and the base of which acts directly or indirectly against the second assembly part 22 in order to expand the expansion sleeve 3 and apply an axial clamping force to the assembly parts 21, 22 to be clamped together. The invention additionally relates to a connection assembly comprising such an expansion bolt.

Classes IPC  ?

• F16B 3/06 - Assemblages du type par clavetteClavettes utilisant des manchons coniques de serrage
• F16B 5/02 - Jonction de feuilles ou de plaques soit entre elles soit à des bandes ou barres parallèles à elles par organes de fixation utilisant un filetage
• F16B 31/04 - Assemblages à vis spécialement modifiés en vue de résister à une charge de tractionBoulons de rupture maintenant constante la charge de traction
• F16B 5/06 - Jonction de feuilles ou de plaques soit entre elles soit à des bandes ou barres parallèles à elles par brides ou clips

Abrégé

Disclosed is a screw fastener arrangement comprising a screw fastener, with a head 11 having a ring-shaped washer contact surface 12 and a shank 9, and at least one washer 1, 1.1 on the shank 9 of the screw fastener. In this screw fastener arrangement, a coupling sleeve 3 is in the opening 4 of the at least one washer 1, 1.1 through which the shaft 9 passes, the coupling sleeve having a U-shaped profile which opens radially outward and is formed by two flanges 7, 7.1 spaced from each other and protruding radially outward, the coupling sleeve 3 being held interlockingly with the at least one washer 1, 1.1 by the flange 7, 7.1 in the direction of the longitudinal axis of the washer opening 4. The coupling sleeve 3 has a plurality of clamping catches 8 projecting radially inward and elastically adjustable in the direction of their longitudinal axis against the interior wall of the coupling sleeve 3, which, using their free end, engage in an undercut of the screw fastener 10, acting in a longitudinally axial direction to the coupling sleeve 3. Also disclosed is a washer assembly for a screw fastener of the above type.

Classes IPC  ?

• F16B 39/24 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par rondelles, rondelles à ressort ou plaques élastiques qui bloquent contre l'objet

Produits et services

Mechanical clamping systems; Mechanical fasteners with multi-jackbolt tensioners; clamping studs, Clamps, Cramp heads, Lock cylinders, Lateral clamps, centring clamps, mechanical pull-down clamping elements. Mechanical clamping systems; Mechanical fasteners with multi-jackbolt tensioners; Clamping bolts, clamps, Cramp heads, Lock cylinders, Lateral clamps, centring clamps, mechanical pull-down clamping elements, All the aforesaid goods being parts of machines.

Abrégé

A rail fastener (7) comprises an anchoring shaft (9) for fixing the rail fastener (7) in a fastening base, for instance a sleeper (2) which bears the rail (1), and a head (10) which is integrally formed on the anchoring shaft (9) and equipped with means for receiving a torque for the purpose of screwing the anchoring shaft (9) into the fastening base. The rail fastener (7) is distinguished in that - a threaded shaft (11) is integrally formed on the head (10) on the side thereof opposite to the anchoring shaft (9) or a bore equipped with an internal thread is made in the head (10) and/or the anchoring shaft (9) integrally formed thereon from the side thereof opposite to the anchoring shaft (9), - the head (7) has a surface portion as a first abutment surface (24) annularly surrounding the threaded shaft (11) or the threaded bore, - the rail fastener (7) has a clamping element (12) seated on the threaded shaft (11) or engaging in the internal thread of the head (10) and/or of the anchoring shaft (9) and meshing with the respective thread, which clamping element has an outwardly projecting projection for supporting on at least one leg of a rail hold-down spring (22) and a shaft portion (15) integrally formed thereon in the direction of the head (10), which shaft portion has a second abutment surface (26) directed towards the head (10) and corresponding with the first abutment surface (24) and - between the two abutment surfaces (24, 26) there is situated a securing disc or a securing disc arrangement (16) which is supported on the abutment surfaces (24, 26) to prevent the clamping element (12) from loosening.

Classes IPC  ?

• E01B 9/10 - Tirefonds ou boulons pour traverses

Produits et services

Screw locking elements of metal; Lock washers of metal; Nuts of metal.

Abrégé

A securing spike for attaching and/or sealing a security tag to an article, in particular a textile article, comprises a pin 2 with a shaft 3 for engaging into the pin holder on a security tag and with a pin head 6 and a plastic head 13 which encloses the pin head 6. The surface of the underside of the pin head 6 is enlarged by providing it with an associated pin head enlarging element 8, and the plastic head 13 is connected to the pin 2 by means of injection moulding or another similar plastic-shaping process, including all of the pin head enlarging element 8 or at least the portion or portions of said element which enlarge the surface of the underside of the pin head 6.

Classes IPC  ?

• E05B 73/00 - Dispositifs de verrouillage pour objets portatifs empêchant un déplacement non autoriséDispositifs de verrouillage non prévus dans les autres groupes de la présente sous-classe