[go: up one dir, main page]

EP0514924B1 - Vis de contact - Google Patents

Vis de contact Download PDF

Info

Publication number
EP0514924B1
EP0514924B1 EP92108684A EP92108684A EP0514924B1 EP 0514924 B1 EP0514924 B1 EP 0514924B1 EP 92108684 A EP92108684 A EP 92108684A EP 92108684 A EP92108684 A EP 92108684A EP 0514924 B1 EP0514924 B1 EP 0514924B1
Authority
EP
European Patent Office
Prior art keywords
contact
screw
contact screw
shaft
screw according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92108684A
Other languages
German (de)
English (en)
Other versions
EP0514924A1 (fr
Inventor
Georg Czernek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arcus Elektrotechnik Alois Schiffmann GmbH
Original Assignee
Arcus Elektrotechnik Alois Schiffmann GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcus Elektrotechnik Alois Schiffmann GmbH filed Critical Arcus Elektrotechnik Alois Schiffmann GmbH
Publication of EP0514924A1 publication Critical patent/EP0514924A1/fr
Application granted granted Critical
Publication of EP0514924B1 publication Critical patent/EP0514924B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2475—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member

Definitions

  • the invention relates to a contact screw for contacting insulated electrical lines or cables in a terminal, with a screw body with a cylindrical shaft with an external thread, with a screw-in part at the front end of the contact screw, the clearing devices for cutting and clearing insulating material and a contact piece for contacting of the line material, and with an engagement part in the rear area of the contact screw, in particular an inner edge or outer edge for attaching a tool, the screw body having an annular groove running in the circumferential direction, which forms a transition region of the screw-in part with a reduced outer diameter between the shaft and the screw-in part.
  • a contact screw is known from EP-A-0 420 060.
  • contact screws For connecting and contacting insulated electrical lines or cables, contact screws have been used for many years, which have clearing devices in the form of milling devices on their end faces, which come into engagement with the respective conductor, which in particular can be slot-shaped. These slots are expediently arranged obliquely both with respect to the axis of the contact screw and with respect to a cross-sectional area of the contact screw and form sharp-edged cutting edges.
  • such a contact screw is screwed in a little further, with further material being removed from the conductor from the cutting edges of the broaching devices until a circular contact surface is worked out in the conductor which corresponds to the diameter of the contact screw.
  • the surface of the respective conductor at the contact point is adapted to the shape of the screw end with a loss of cross section.
  • EP-A-0 420 060 specifies a contact screw of the type mentioned at the outset, the head section, which comes into engagement as a screw-in part with the electrical line to be contacted, being designed as a deformable hollow body with an interior that is rotationally symmetrical about the longitudinal axis of the contact screw whose diameter changes in the axial direction.
  • One end edge of the head section forms the clearing devices, while a lateral surface of the hollow body forms the contact devices.
  • the outer lateral surface of this hollow body passes over a radius into the threaded body of the contact screw, so that the outer lateral surface forms an undercut.
  • This undercut represents an annular groove running in the circumferential direction, which forms a transition region of the screw-in part with a reduced outside diameter between the shaft and the screw-in part.
  • the contact screw according to EP-A-0 420 060 When the contact screw according to EP-A-0 420 060 is screwed into a terminal, one acts in the axial direction force acting on the head section the hollow body with a force component in the radial direction. If the hollow body in the case of this conventional contact screw widens in a funnel shape in the direction of the end edge, the inner jacket can be pressed onto the conductor material through the end edge when the contact screw is screwed in, while insulating material of the line to be contacted is removed. A plastic deformation of the head section takes place in order to avoid damage to the conductor material.
  • the lines to be contacted are conductors made of solid or compacted multi-wire material, there are generally no major problems.
  • the fitter easily notices when the contact screw has cut through the insulating material and has come into engagement with the conductor material, because then the mechanical resistance increases considerably when the contact screw is screwed in.
  • the required torque increases, he will therefore only make a predetermined number of revolutions of the contact screw or heed the specified maximum torque in order to ensure reliable contact over a maximum cross-sectional area.
  • the object of the invention is therefore to provide a contact screw for contacting insulated electrical lines or cables in a terminal, which is simple and reliable Mounting is also possible if the conductors to be contacted consist of soft material or multi-wire conductors that are only weakly stranded.
  • the solution according to the invention consists in forming a contact screw of the type mentioned at the outset so that the shaft has an axially extending inner bore which extends up to the transition region which, on the one hand, forms a predetermined breaking point between the front region of the inner bore and the wall of the annular groove , and whose inner diameter is at least as large as the outer diameter of the transition area.
  • the special structure of the contact screw according to the invention advantageously ensures that a predetermined breaking point is formed between the transition region and the shaft of the contact screw, at which the material breaks between the screw-in part on the one hand and the shaft on the other hand when the axial pressure and frictional resistance acting on the screw-in part exceed the specified values.
  • the shaft then acts as a propulsion piston which presses the engagement part in the axial direction against the conductor to be contacted, the screw part then no longer performing a rotary movement. Only the shaft of the contact screw located in the forward direction of rotation rotates, while the front end of the contact screw in the form of the screw-in part stands still and is pressed against the material of the conductor.
  • the screw-in part is designed as a cylindrical solid part, the transition area of which is rotationally symmetrical and can be received in the inner bore of the shaft.
  • the screw-in part thus forms a particularly effective, mechanically robust contact piece for producing the desired contact.
  • the inner bore of the shaft then forms a guide for the transition region of the screw-in part which, after being torn off, is pushed into the interior of the shaft when the shaft is screwed in further by actuation with the tool.
  • the screw-in part has an external thread in its rear region which corresponds to the external thread of the shaft. In this way, the screw-in part is threadedly engaged in the clamp during its advancing movement.
  • the screw-in part as a contact piece on has a contact plate, the contact diameter of which is larger than the outer diameter of the screw body. This creates a particularly good, large-area contact between the conductor to be contacted and the contact screw. In addition, the frictional resistance between the screw-in part and the conductor to be contacted can thereby be increased, so that timely tearing off of the screw-in part is ensured without causing undesirable damage to the conductor to be contacted.
  • the mutually opposite surfaces of the annular groove run essentially parallel to one another. This ensures that, after the predetermined breaking point has been torn off, a pressure which is as uniform as possible is exerted by the shaft of the contact screw on the screw-in part arranged in front of it in the direction of advance in order to press it against the conductor to be contacted.
  • the contact piece or the contact plate has a flat contact surface on the front which runs essentially parallel to the opposite surfaces of the annular groove. In this way, particularly good contacting of the contact screw is ensured and, moreover, that tilting between the screw-in part on the one hand and the shaft of the contact screw on the other hand is avoided.
  • the contact screw according to the invention has a particularly simple structure, since the machining of the inner bore results in such an internal edge, in particular an internal hexagon, which is used for mounting the contact screw.
  • a lubricant is applied to the surfaces of the annular groove. This advantageously means that after the predetermined breaking point has been torn off, lubricant is present between the two opposite end faces of the screw-in part on the one hand and the shaft on the other hand. This ensures that, in the desired manner, after the predetermined breaking point has been torn off, only the screw-in part with its contact piece is actually pressed without the screw-in part being taken along by the shaft of the contact screw in the direction of rotation.
  • the rear end of the contact screw in the cylindrical shaft has a weakening zone in the circumferential direction, so that the rear end behind this weakening zone forms a tear-off head which breaks off when a predetermined torque is exceeded when the contact screw is tightened. In this way it is ensured that a correct contact with the desired contact pressure is achieved.
  • the weakening zone is dimensioned such that the tear-off head only breaks off when the torque is significantly greater than the torque which is sufficient for breaking at the front predetermined breaking point.
  • the contact screw in the area of the tear-off head in the vicinity of the weakening zone it has at least one protrusion projecting transversely into the interior of the inner edge.
  • This projection in the interior of the inner edge forms a support for the tool to be used and at the same time a lock that reliably prevents the tool from being used too far.
  • the respective projection is arranged in the extension of a radially extending recess and is designed as a projection protruding radially inwards, stamped or pressed in from the outside.
  • a projection can be produced in a simple manner with a punching tool or with a punch.
  • the radially extending recess can advantageously serve as a guide for the respective tool in order to produce such a projection.
  • the projection is designed as a pin which passes transversely through the wall of the tear-off head and which extends at least partially radially into the interior of the inner edge.
  • the pin will extend through a corresponding radially extending recess and completely or partially penetrate the interior of the inner edge in the radial direction.
  • the weakening zone is designed as a circumferential shearing groove which forms the rear end of the external thread.
  • the respective projection can thus be formed in an insensitive region of the contact screw.
  • the provision of such a shear groove facilitates the formation of the external thread.
  • a contact screw 10 has a screw body with a cylindrical shaft 12, which has an external thread 14, and a screw-in part 16, which has a cylinder part 32, which forms a continuation of the cylindrical shaft 12. Accordingly, its external thread 18 is dimensioned in the same way as the external thread 14.
  • a contact piece 28 can be seen, which is designed in the manner shown as a contact plate, the contact diameter D3 of which can be dimensioned substantially larger than the outer diameter D4 of the shaft 12 or of the cylinder part 32.
  • broaching devices in the form of milling slots 42 are evenly distributed over the circumference. which have an inclination both in relation to the radii of the contact plate 28 and in relation to the axis X of the contact screw 10 in order to work in a manner known per se as cutting edges and to scrape off the insulating material from electrical lines.
  • the contact screw 10 has at its front end a flat contact surface 30 which merges with a sharp edge 29 into a peripheral wall 31 of the contact piece 28. This contributes to the fact that a sharp-edged cutting edge is formed between the milling slots 42 and the contact surface 30 on the one hand and the peripheral wall 31 on the other.
  • the milling slots 42 expediently extend from the peripheral wall 31 to almost the center of the circular contact surface 30 by one to ensure large-scale removal of material through the contact screw 10.
  • a circumferential annular groove 20 is incorporated, which leaves a transition area 26, which has a reduced outer diameter D1 compared to the outer diameter D4 of the shaft 12 and the cylinder part 32.
  • This inner bore 34 In the axial extension of the transition part 26 there is an inner bore 34 extending in the axis, the conical or flat end 38 of which extends close to the transition region 26.
  • This inner bore 34 has an inner diameter D2 which is at least as large, preferably somewhat larger than the outer diameter D1 of the transition region 26.
  • the inner bore 34 merges into an inner edge, in particular into an internal hexagon 36, which at the same time forms the engagement part for attaching a tool in order to screw the contact screw 10 into a clamp.
  • a predetermined breaking point 40 is formed between the front region of the inner bore 34 and its conical end 38 on the one hand and the wall of the annular groove 20 which has remained after the annular groove 20 has been formed, and has the shape of a rotationally symmetrical shearing edge.
  • this predetermined breaking point 40 By suitable dimensioning of the wall thickness of this predetermined breaking point 40, it can be set at which frictional resistance, which acts on the screw-in part 16, the screw-in part 16 tears off at its transition region 26 from the shaft 12.
  • the contact piece 28 is designed as a contact plate, the contact diameter D3 of which is substantially larger than the outer diameter D4 of the shaft 12 or of the cylinder part 32.
  • this frictional resistance can be set by the number of milling slots 42 which are formed in the screw-in part 16, it also being possible, of course, to provide more than three milling slots 42 according to FIG. 3.
  • the inner edge in particular the inner hexagon 36, can be used for this purpose. If necessary or desired, another engagement part on the contact screw 10 can also be used, for example an external hexagon not shown in the drawings.
  • the conductor insulation is first milled through by the milling slots 42 in the screw-in part 16, then the conductor surface of the electrical line to be contacted is milled until it is flat.
  • This can be a particularly soft conductor material or the conductor surface of a multi-wire conductor.
  • the arrangement of the contact screw 10 according to the invention is advantageously made such that on the one hand the two end faces 22 and 24 of the annular groove 20 and on the other hand the contact surface 30 of the screw-in part 16 run essentially plane-parallel to one another, because a particularly uniform contact pressure can thereby be generated.
  • a lubricant for example in pasty form, into the space of the annular groove 20. This ensures that sufficient lubrication takes place between the two surfaces 22 and 24 when the contact screw 10 is tightened, so that a driving effect is excluded.
  • the cylinder part 32 and the cylindrical shaft 12 are in frictional engagement over the full surface of the opposing surfaces 22 and 24, so that good mechanical and electrical contact is ensured by the contact screw 10.
  • FIG 4 shows in longitudinal section a side view of a further embodiment of the contact screw 10 according to the invention, only the rear area of the contact screw 10 is shown.
  • the front area is designed in the manner as explained above in connection with FIGS. 1 to 3, the diameter of the contact piece 28 being able to be selected according to the respective requirements.
  • the contact screw 10 has a weakening zone in the rear region of the cylindrical shaft 12, which is designed, for example, as a circumferential shear-off groove 52 and can, for example, have a V-shaped cross section with a suitable opening angle A.
  • the shear groove 52 delimits a tear-off head 50 in the axial direction from the rear edge 56 in the direction of the contact piece 28, which tear-off head 50 only breaks off when a predetermined torque is exceeded when the contact screw 10 is tightened.
  • This limit torque is of course greater than the torque that leads to the breaking of the predetermined breaking point 20.
  • At least one projection 48 is provided in the area of the shear-off head 50 in the vicinity of the shear-off groove 52 toward the rear edge 56, which protrudes into the interior of the inner edge 36.
  • Such projections 48 limit the insertion of a tool in a position slightly above the shear groove 52 in the axial direction, so that the shear groove 52 serves as a torque limit for the effective body of the contact screw 10.
  • radially extending recesses 44 are provided for this purpose in the cylindrical shaft 12, which have a depression 46 in their radially inner regions, which can be produced in a simple manner with a punching tool or a punch .
  • The, for example, cylindrical recesses 44 can serve as a guide when attaching the respective tool.
  • the blunt front end of the depression 46 becomes radial deformed inside so that the nose-shaped radial projections 48 result.
  • two such recesses 44 with corresponding radial projections 48 can expediently be provided according to FIG. 5, wherein the relative position of these recesses 44 with respect to the inner edge 36 can then be indefinite and freely selectable. 5, the two recesses 44 have an angle of 90 ° between one another, while the inner edge 36 is formed by an internal hexagon with an inner angle of 120 °.
  • the maximum wall thickness between the recess 44 and the hexagon socket 36 is denoted by B, wherein the value is suitably chosen from B, so that the projections 48 Pressing with a reasonable expenditure of force or can take, without undesired deformations of the contact screw 10 itself occur.
  • the lower edge of the hexagon socket 36 is indicated by the reference number 54. It can be seen that after the tear-off head 50 has been sheared off at the level of the shear-off groove 52, a sufficiently large area remains in the shaft 12 into which a tool can be reinserted if, for any reason, the contact screw 10 is actuated at a later time, for example to remove the contact screw 10, is required. 4 that the shear groove 52 in advantageously forms the rear end of the external thread 14, which simplifies the manufacture of the arrangement.
  • the projections 48 can also be formed by a pin which extends transversely through the wall of the tear-off head 50 and which extends at least partially radially into the interior of the hexagon socket 36. Such a pin is naturally also removed together with the tear-off head 50 if it shears off when the predetermined torque is exceeded.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Claims (13)

  1. Vis de contact pour l'établissement d'un contact de conducteurs ou de câbles électriques isolés dans une borne de connexion,
    - avec un corps de vis avec une tige cylindrique (12) avec un filetage (14),
    - avec une partie d'insertion (16) à l'extrémité antérieure de la vis de contact (10), qui présente des mécanismes d'ouverture (42) pour la traversée et l'enlèvement d'un matériau isolant et une pièce de contact (28) pour l'établissement d'un contact du matériau conducteur et
    - avec une partie de prise (36) dans la zone arrière de la vis de contact (10), en particulier un polygone intérieur ou un polygone extérieur, pour la fixation d'un outil,
    le corps de vis présentant une gorge annulaire (20) s'étendant en direction périphérique, qui forme entre la tige (12) et la partie d'insertion (16) une zone de transition (26) de la partie d'insertion (16) avec un diamètre extérieur (D1) réduit,
    caractérisé en ce
    que la tige (12) présente un alésage interne (34) s'étendant axialement qui s'étend jusqu'à près de la zone de transition (26), laquelle forme entre la zone antérieure de l'alésage interne (34) d'une part et la paroi de la gorge annulaire (20) d'autre part un emplacement d'amorce de rupture (40), et dont le diamètre intérieur (D2) est au moins aussi grand que le diamètre extérieur (D1) de la zone de transition (26).
  2. Vis de contact selon la revendication 1,
    caractérisée en ce
    que la partie d'insertion (16) est réalisée sous forme de partie massive cylindrique dont la zone de transition (26) est réalisée symétrique en rotation et peut être reçue dans l'alésage interne (34) de la tige (12).
  3. Vis de contact selon la revendication 1 ou 2,
    caractérisée en ce
    que la partie d'insertion (16) présente dans sa zone arrière un filetage (18) qui correspond au filetage (14) de la tige (12).
  4. Vis de contact selon l'une des revendications 1 à 3,
    caractérisée en ce
    que les surfaces (22, 24) opposées l'une à l'autre de la gorge annulaire (20) s'étendent essentiellement parallèlement l'une à l'autre.
  5. Vis de contact selon l'une des revendications 1 à 4,
    caractérisée en ce
    que la partie d'insertion (16) présente, en tant que pièce de contact, un disque de contact (28) à l'extrémité côté frontal, dont le diamètre de contact (D3) est plus grand que le diamètre extérieur (D4) du corps de vis.
  6. Vis de contact selon l'une des revendications 1 à 5,
    caractérisée en ce
    que la pièce de contact ou respectivement le disque de contact (28) présente du côté frontal une surface de contact (30) plane qui s'étend essentiellement parallèlement aux surfaces opposées (22, 24) de la gorge annulaire (20).
  7. Vis de contact selon l'une des revendications 1 à 6,
    caractérisée en ce
    que l'alésage interne (34) se transforme, à l'extrémité arrière de la vis de contact (10), en un polygone intérieur, en particulier un hexagone intérieur (36), qui forme la partie de prise de la vis de contact (10).
  8. Vis de contact selon l'une des revendications 1 à 7,
    caractérisée en ce
    qu'un agent lubrifiant est déposé sur les surfaces (22, 24) de la gorge annulaire (20).
  9. Vis de contact selon l'une des revendications 1 à 8,
    caractérisée en ce
    que l'extrémité arrière de la vis de contact (10) présente dans la tige cylindrique (12) une zone d'affaiblissement (52) en direction périphérique, de sorte que l'extrémité arrière forme, derrière cette zone d'affaiblissement (52) une tête arrachable (50) qui se rompt lors du dépassement d'un couple prédéterminé lors du serrage de la vis de contact (10).
  10. Vis de contact selon la revendication 9,
    caractérisée en ce
    que la vis de contact (10) présente dans la zone de la tête arrachable (50), au voisinage de la zone d'affaiblissement (52), au moins une saillie (48) faisant saillie transversalement à l'intérieur du volume intérieur du polygone intérieur (36).
  11. Vis de contact selon la revendication 10,
    caractérisée en ce
    que la saillie (48) respective est disposée dans le prolongement d'un évidement (44) s'étendant radialement et est réalisé sous forme d'une saillie (48) en saillie radialement vers l'intérieur, empreinte ou imprimée depuis l'extérieur.
  12. Vis de contact selon la revendication 10,
    caractérisée en ce
    que la saillie (48) est réalisée sous forme de broche qui traverse transversalement vers l'intérieur la paroi de la tête arrachable (50) et qui s'étend au moins partiellement radialement dans le volume intérieur du polygone intérieur (36).
  13. Vis de contact selon l'une des revendications 9 à 12,
    caractérisée en ce
    que la zone d'affaiblissement (52) est réalisée sous forme de rainure de cisaillement (52) continue qui forme l'extrémité arrière du filetage (14).
EP92108684A 1991-05-23 1992-05-22 Vis de contact Expired - Lifetime EP0514924B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4116876 1991-05-23
DE4116876A DE4116876A1 (de) 1991-05-23 1991-05-23 Kontaktschraube

Publications (2)

Publication Number Publication Date
EP0514924A1 EP0514924A1 (fr) 1992-11-25
EP0514924B1 true EP0514924B1 (fr) 1995-09-06

Family

ID=6432276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92108684A Expired - Lifetime EP0514924B1 (fr) 1991-05-23 1992-05-22 Vis de contact

Country Status (2)

Country Link
EP (1) EP0514924B1 (fr)
DE (2) DE4116876A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1953397A1 (fr) * 2007-01-26 2008-08-06 Arcus Elektrotechnik Alois Schiffmann GmbH Vis de cisaillement et son procédé de fabrication

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4240001A1 (de) * 1992-11-27 1994-06-01 Arcus Elektrotech Mehrphasige Abzweigklemme
ATE159085T1 (de) † 1994-07-15 1997-10-15 Limanin Establishment Abreissschraube
DE102006048177A1 (de) * 2006-10-10 2008-04-24 Pfisterer Kontaktsysteme Gmbh & Co. Kg Befestigungsmittel, insbesondere Abreißschraube, mit abtrennbarem Klemmabschnitt

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE639459C (de) * 1934-10-04 1936-12-05 Aeg Unverlierbares Druckstueck an Schrauben, insbesondere zum Festklemmen von elektrischen Leitungsdraehten
US3487354A (en) * 1968-01-26 1969-12-30 Alfred D Duncan Connector for insulation covered conductors
ES172257Y (es) * 1970-09-23 1972-09-01 Bassani, S. P. A. Terminales de presionn perfeccionados para la conexion de conductores a aparatos electricos.
NL7314311A (fr) * 1972-10-19 1974-04-23
FR2378969A1 (fr) * 1977-01-26 1978-08-25 Caillau Ets Collier de serrage
DE3932435C1 (fr) * 1989-09-28 1991-01-03 Arcus Elektrotechnik Alois Schiffmann Gmbh, 8000 Muenchen, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1953397A1 (fr) * 2007-01-26 2008-08-06 Arcus Elektrotechnik Alois Schiffmann GmbH Vis de cisaillement et son procédé de fabrication

Also Published As

Publication number Publication date
DE4116876A1 (de) 1992-11-26
DE59203526D1 (de) 1995-10-12
EP0514924A1 (fr) 1992-11-25

Similar Documents

Publication Publication Date Title
EP3077685B1 (fr) Vis et élément d'entraînement présentant un biseau
DE3042772C2 (fr)
DE2544531C2 (de) Gewindeselbstschneidende Schraube
EP0692643B2 (fr) Vis frangible
EP2232089B1 (fr) Insert fileté et pièce de véhicule
EP1626187B1 (fr) Vis frangible, système associé et procédé pour entraîner cette vis frangible
DE4323434C1 (de) Abscherschraube
DE4113242C2 (de) Abscherschraube
EP1911981B1 (fr) Dispositif de fixation, en particulier vis frangible dotée d'une section de blocage séparable
EP0535193B1 (fr) Procede pour la fabrication d'une section de tige cylindrique non filetee d'une extremite de fixation ou d'une partie d'extremite de fixation
DE102009012243B4 (de) Stanzmutter, Stanzmutter-Vorrichtung und Stanzmutter-Blechverbindung
EP0514924B1 (fr) Vis de contact
EP1376764B1 (fr) Vis à amorces de rupture multiples
EP3374649A1 (fr) Vis autotaraudeuse
EP1953397B1 (fr) Vis de cisaillement et son procédé de fabrication
EP2381534B1 (fr) Vis de serrage
DE2751407A1 (de) Verfahren und vorrichtung zur herstellung von bohrenden und ein gewinde formenden befestigungselementen sowie hierdurch hergestellte befestigungselemente
DE102008039431B4 (de) Abreißschraube für Verbindungselemente von elektrischen Leitern
EP2381535B1 (fr) Dispositif de fixation d'un conducteur électrique dans une pince
DE2926826C2 (de) Mutter mit Drehmomentbegrenzung
EP1378671B1 (fr) Vis de serrage avec rondelle de serrage et dispositif de serrage associé
EP3974666B1 (fr) Vis de cisaillement
EP1884667B1 (fr) Écrou
AT379874B (de) Verdrehungsschutz fuer schraubelemente
EP2487755A1 (fr) Vis de serrage

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR

17P Request for examination filed

Effective date: 19921105

17Q First examination report despatched

Effective date: 19940318

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR

REF Corresponds to:

Ref document number: 59203526

Country of ref document: DE

Date of ref document: 19951012

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030520

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030730

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST