EP0692643B2 - Vis frangible - Google Patents

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Publication number
EP0692643B2
EP0692643B2 EP94111058A EP94111058A EP0692643B2 EP 0692643 B2 EP0692643 B2 EP 0692643B2 EP 94111058 A EP94111058 A EP 94111058A EP 94111058 A EP94111058 A EP 94111058A EP 0692643 B2 EP0692643 B2 EP 0692643B2
Authority
EP
European Patent Office
Prior art keywords
section
predetermined breaking
tear
breaking point
screw
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
EP94111058A
Other languages
German (de)
English (en)
Other versions
EP0692643A1 (fr
EP0692643B1 (fr
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8216121&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0692643(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Arcus Elektrotechnik Alois Schiffmann GmbH filed Critical Arcus Elektrotechnik Alois Schiffmann GmbH
Priority to ES94111058T priority Critical patent/ES2084567T1/es
Priority to EP94111058A priority patent/EP0692643B2/fr
Priority to AT94111058T priority patent/ATE159085T1/de
Priority to DE59404282T priority patent/DE59404282D1/de
Publication of EP0692643A1 publication Critical patent/EP0692643A1/fr
Application granted granted Critical
Publication of EP0692643B1 publication Critical patent/EP0692643B1/fr
Publication of EP0692643B2 publication Critical patent/EP0692643B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • 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
    • H01R4/307—Clamped connections, spring connections utilising a screw or nut clamping member characterised by the thread of the screw or nut

Definitions

  • the invention relates to a tear-off screw according to the preamble of claim 1.
  • the object of the invention is now to to describe a tear-off screw as possible is versatile and thus the above listed Overcomes disadvantages.
  • the inventive solution provides, among others, that in addition to the Head section and the it over a first predetermined breaking point fixed first threaded portion at least another threaded section and another predetermined breaking point are provided, wherein the threaded portions connect to each other and each one over Predetermined breaking point are interconnected.
  • the tearing screw includes a version Head portion, a first and a second threaded portion and a first predetermined breaking point between the head portion and the first threaded portion, and a second predetermined breaking point between the first and the second threaded portion. For a cable lug or connectors with only small cross sections or diameters becomes the second and the first threaded portion screwed in and the tearing off takes place only at the first predetermined breaking point.
  • Analog can be used at Screws with multiple threaded sections shearing off all completely over the cable sheath or connector projecting threaded sections.
  • the breakaway torques are Values with tolerances. If so, be sure must first that first and then the second predetermined breaking point breaks, so the tolerance ranges the two breakaway torques do not overlap, or they must be next to each other.
  • the use of the novel multi-stage Tear-off screws is by no means on the use restricted in cable lugs or connectors.
  • the demolition site is a maximum of one threaded section length before, so that when choosing small section lengths the Always slightly protrude screws after tearing off.
  • the innovative screws with at least two Predetermined breaking points have the further advantage that at each Breaking point another tearing torque can be provided, and thus the possibility exists a most favorable contact force of at least two to select different forces.
  • the preferred Execution take the tearing torques off Head section against the last screw section too, so that one breaking point is sheared off after the other can be, until the tearing torque associated desired contact force is reached.
  • the predetermined breaking point is preferably as annular Connection section constructed, the ring thickness varies along the screw axis. Preferably closes the connecting section with the smallest Ring thickness to the subsequent threaded section, so that the break directly in the area of the released Threaded section end face takes place. It goes without saying by itself, that any other suitable one skilled in the art known breaking points are provided can. In addition to the predetermined breaking points with narrowed, or diluted, bodies are also with predetermined breaking points softer and / or brittle materials possible.
  • the extensions of the threaded sections to the formed positively receiving a tool are preferred as polygonal recesses, in particular hexagonal recesses, educated.
  • externally accessible connection elements such as two parallel faces attached on both sides, be provided to which a tool for generating a torque can be applied.
  • Fig. 1 shows a tear-off screw 1 with a head portion 2, a first threaded portion 3, the the head section 2 connects, and with a second Threaded portion 4, which at the first threaded portion 3 connects.
  • the transition from the head section 2 to the first threaded portion 3, or from the first threaded portion 3 to the second threaded portion 4 is by a first connection section 5, or a second connecting portion 6 is formed.
  • a first connection section 5, or a second connecting portion 6 is formed.
  • a Interior recess 8 is provided. This recess extends in particular at least partially in the second threaded portion 4, with a arranged at the free end contact area 9 completed is.
  • the second thread 4 'and the first thread 3'sind as sections of a single thread designed so that they are in a common internal thread can be screwed.
  • the first predetermined breaking point 10 is in the first connecting section 5, preferably at its transition region arranged to the first threaded portion 3.
  • the second predetermined breaking point 11 in the transition region of the second connecting portion 6 to the second Threaded portion 4 is arranged.
  • This location of Predetermined breaking points 10,11 preferably results from the external boundaries tapering against the predetermined breaking points the respective connecting sections 5.6.
  • the cross section of the inner recess 8 reduced from the head portion 2 against the contact portion 9 and the outer boundaries of the connecting sections 5.6 are formed substantially the same, is the tearing torque of the first predetermined breaking point 10 smaller due to a small first ring thickness 12 as that of the second predetermined breaking point 11 with a larger one second ring thickness 13.
  • the ring thickness also by the addition, or decrease of the outer boundary cross section of a predetermined breaking point to the other can be varied.
  • the inner recess 8 is at least in sections for the positive reception of tool heads, such as polygonal heads, especially with hexagonal cross section, formed.
  • tool heads such as polygonal heads, especially with hexagonal cross section
  • first Thread section he is smaller and stays up again constant to the second thread section.
  • the cross section is again smaller, so that forms into the different sections conclusively usable tool from section to section smaller outer mass has.
  • the downsizing Cross section was chosen to the tearing torque to vary. The desired different However, tear-off torques may occur even at a over the entire inner recess. 8 constant cross section, such as by varying the Expansion of the external surfaces in the area of the predetermined breaking points, be achieved.
  • the invention is by no means the preferred one Tear-off screws with internal recesses restricted.
  • attack surfaces provided for the positive application of a tool can be omitted on the inner recess 8 become.
  • Fig. 2 shows a tear-off screw with a head portion 2, a first threaded portion 3 and four further threaded portions 4a, 4b, 4c, 4d. Between two threaded sections 3, 4a-d are further predetermined breaking points provided so that the screw 1 in different long threads are screwed in can and after shearing at the first breaking point only slightly protrudes beyond the threaded end.
  • Fig. 3a and 3b show the optimal usability of inventive tearing screws in cable lugs and connectors with something different Expansion and with different Jardin buoy.
  • Fig. 3a are two threaded sections 3,4 in a thread Screwed 14 of a cable lug or connector 15.
  • the contact area 9 extends far into the, to Receiving the cable 16 provided, cable area 17 before, because a multi-core cable 16 with only a small Cross-section is introduced.
  • Fig. 3b is a cable lug or connector 15 ' equipped with a cable of larger cross section, so that only the second threaded portion 4 in the thread 14 place finds. After demolishing at the second Predetermined breaking point 11 is no longer a screw section via the cable connector.
  • the inventive tearing screw can in a variety of embodiments are formed.
  • the tear-off screws exist at least partially of metal, in particular electrically conductive metal, about brass, and / or plastic.

Landscapes

  • Organic Insulating Materials (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Multi-Conductor Connections (AREA)
  • Clamps And Clips (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Claims (9)

  1. Vis déchirable, comprenant une section filetée (3) et une section de tête (2) séparable, fixée à la section filetée par un point destiné à la rupture (10),
    dans laquelle sont prévus au moins une autre section filetée (4) et un autre point destiné à la rupture (11), les sections filetées (3, 4) se raccordant l'une à l'autre et étant respectivement reliées l'une à l'autre par un point destiné à la rupture (11), et
    dans laquelle un évidement intérieur s'étend de la section de tête (2) jusque dans une dernière section filetée (4d) avec une section transversale qui va en diminuant par degrés, de préférence dans une zone initiale, se raccordant au point destiné à la rupture, de chaque section filetée, ledit évidement intérieur étant réalisé pour recevoir avec ajustement de forme, au moins par sections, des têtes d'outil.
  2. Vis déchirable selon la revendication 1,
    caractérisée en en ce que les couples de déchirement, ou respectivement les plages de couples de déchirement, menant au cisaillement au niveau des points individuels destinés à la rupture (10, 11) sont de grandeur différente, en particulier vont en augmentant en allant de la section de tête (2) à la dernière section filetée (4d), ou respectivement se raccordent les uns aux autres.
  3. Vis déchirable comportant une section filetée (3) et une section de tête séparable (2), fixée à la section filetée par un point destiné à la rupture (10),
    caractérisée en ce qu'il est prévu au moins une autre section filetée (4) et un autre point destiné à la rupture (11), les sections filetées (3, 4) se raccordant l'une à l'autre et étant respectivement reliées l'une à l'autre par un point destiné à la rupture (11), et les couples de déchirement, ou respectivement les plages de couples de déchirement, menant au cisaillement au niveau des points individuels destinés à la rupture (10, 11) sont de grandeur différente, en particulier vont en augmentant en allant de la section de tête (2) à la dernière section filetée (4d), ou respectivement se raccordent les uns aux autres.
  4. Vis déchirable selon la revendication 3,
    caractérisée en ce qu'un évidement intérieur (8) s'étend depuis la section de tête (2) jusque dans la section filetée (4d) la plus à l'avant, et est réalisée pour recevoir avec ajustement de forme, au moins par sections, des têtes d'outil telles que des têtes à plusieurs pans, en particulier avec une section transversale hexagonale.
  5. Vis déchirable selon l'une ou l'autre des revendications 3 et 4,
    caractérisée en ce que la section transversale de l'évidement intérieur (8) va en diminuant par degrés en allant de la section de tête (2) à la section filetée (4d) la plus à l'avant, de préférence dans une zone initiale, se raccordant au point destiné à la rupture, de chaque section filetée, ou bien le cas échéant reste sensiblement constante le long de l'évidement intérieur.
  6. Vis déchirable selon l'une des revendications 1 à 5,
    caractérisée en ce que la section transversale de la bordure extérieure des points destinés à la rupture (10, 11) reste constante ou bien va en augmentant, en allant de la section de tête (2) à la section filetée (4d) la plus à l'avant.
  7. Vis déchirable selon l'une des revendications 1 à 6,
    caractérisée en ce que les points destinés à la rupture (10, 11) sont disposés dans des sections de liaison (5, 6) allant en s'effilant, à l'endroit où celles-ci ont leur diamètre extérieur minimal.
  8. Vis déchirable selon la revendication 7,
    caractérisée en ce que toutes les sections de liaison (5, 6) présentent des diamètres extérieurs minimaux sensiblement égaux.
  9. Vis déchirable selon l'une des revendications 1 à 8,
    caractérisée en ce que la vis déchirable est construite au moins partiellement en métal, en particulier en un métal conducteur de l'électricité, comme en laiton et/ou en matière synthétique.
EP94111058A 1994-07-15 1994-07-15 Vis frangible Expired - Lifetime EP0692643B2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES94111058T ES2084567T1 (es) 1994-07-15 1994-07-15 Tornillo arrancable.
EP94111058A EP0692643B2 (fr) 1994-07-15 1994-07-15 Vis frangible
AT94111058T ATE159085T1 (de) 1994-07-15 1994-07-15 Abreissschraube
DE59404282T DE59404282D1 (de) 1994-07-15 1994-07-15 Abreissschraube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94111058A EP0692643B2 (fr) 1994-07-15 1994-07-15 Vis frangible

Publications (3)

Publication Number Publication Date
EP0692643A1 EP0692643A1 (fr) 1996-01-17
EP0692643B1 EP0692643B1 (fr) 1997-10-08
EP0692643B2 true EP0692643B2 (fr) 2005-03-30

Family

ID=8216121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94111058A Expired - Lifetime EP0692643B2 (fr) 1994-07-15 1994-07-15 Vis frangible

Country Status (4)

Country Link
EP (1) EP0692643B2 (fr)
AT (1) ATE159085T1 (fr)
DE (1) DE59404282D1 (fr)
ES (1) ES2084567T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3974666A1 (fr) 2020-09-25 2022-03-30 Nexans Vis de cisaillement

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0984176B1 (fr) * 1998-08-18 2001-03-07 GERHARD PETRI GmbH & CO. KG ELEKTROTECHNISCHE FABRIK Boulon à tête frangible
DE19960198A1 (de) * 1999-12-14 2001-06-28 Pfisterer Kontaktsyst Gmbh Mittel zum Festlegen eines Gegenstandes, insbesondere Klemmschraube, Distanzierelement für ein solches Mittel und Schraubverbindungsklemme mit einem solchen Mittel
EP1376764B1 (fr) 2002-06-27 2010-08-18 Arcus Elektrotechnik Alois Schiffmann GmbH Vis à amorces de rupture multiples
DE10234460B3 (de) * 2002-06-27 2004-03-18 Arcus Elektrotechnik Alois Schiffmann Gmbh Mehrfach-Abscherschraube
DE10312147A1 (de) * 2003-03-17 2004-10-07 Pfisterer Kontaktsysteme Gmbh & Co. Kg Befestigungsmittel, insbesondere Abreißschraube, und zugehörige Schraubverbindungsklemme
DE102004039811A1 (de) 2004-08-11 2006-02-23 Pfisterer Kontaktsysteme Gmbh & Co. Kg Befestigungsmittel, insbesondere Abreißschraube, zugehöriges System und Verfahren zum Eindrehen des Befestigungsmittels
DE102005007384A1 (de) 2005-02-18 2006-08-31 Zf Friedrichshafen Ag Anordnung zur axialen Abstützung von zwei miteinander rotierenden Bauteilen
WO2007130811A2 (fr) 2006-05-05 2007-11-15 3M Innovative Properties Company Borne tubulaire d'un câble
DE102006048177A1 (de) * 2006-10-10 2008-04-24 Pfisterer Kontaktsysteme Gmbh & Co. Kg Befestigungsmittel, insbesondere Abreißschraube, mit abtrennbarem Klemmabschnitt
EP1933043B1 (fr) * 2006-12-12 2012-09-26 Nexans Dispositif de fixation supportant le cisaillement doté d'un élément de transmission de force
DK2071201T3 (da) * 2007-12-11 2010-07-05 Nexans Afklipningsskrue
DE102008039431B4 (de) 2008-08-25 2013-08-29 Cellpack Gmbh Abreißschraube für Verbindungselemente von elektrischen Leitern
DE102009009793A1 (de) * 2009-02-20 2010-08-26 Südkabel GmbH Kabelverbinder
DE102009030662A1 (de) * 2009-06-25 2010-12-30 Hager Electro Gmbh & Co. Kg Schraubklemmanschlussvorrichtung, insbesondere für den Anschluss eines Stromkabels an eine Stromzählerinstallation
DK2608338T3 (en) 2011-12-21 2014-02-17 3M Innovative Properties Co Terminal connector for a power cable
EP3014721A4 (fr) 2013-06-26 2017-02-15 3M Innovative Properties Company Dispositif de raccordement terminal de câble d'alimentation
US9689416B2 (en) 2014-12-04 2017-06-27 Classic Connectors, Inc. Torque limiting set screw
DE102015102224B4 (de) 2015-02-17 2021-04-29 Bbc Cellpack Gmbh Befestigungsmittel für Verbindungselemente für elektrische Leiter und Verbindungselement mit einem solchen Befestigungsmittel
DE102015102222A1 (de) 2015-02-17 2016-08-18 Cellpack Gmbh Befestigungsmittel für Verbindungselemente für elektrische Leiter, beispielsweise Schraubkabelschuhe oder Schraubverbinder
DE102015102223A1 (de) 2015-02-17 2016-08-18 Cellpack Gmbh Befestigungsmittel für Verbindungselemente für elektrische Leiter und Verbindungselement mit einem solchen Befestigungsmittel
DE102015116301A1 (de) * 2015-09-25 2017-03-30 Voss Automotive Gmbh "Verschlussschraube"
WO2018102118A1 (fr) 2016-11-30 2018-06-07 3M Innovative Properties Company Boulon de cisaillement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514924A1 (fr) † 1991-05-23 1992-11-25 ARCUS ELEKROTECHNIK Alois Schiffmann GmbH Vis de contact
WO1995025229A1 (fr) † 1994-03-15 1995-09-21 Sicame Electrical Developments Ltd Ameliorations apportees au serrage d'ecrous

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3444775A (en) * 1968-02-16 1969-05-20 Lockheed Aircraft Corp Nut formed with multiple torque-off collars
US3937121A (en) * 1975-04-14 1976-02-10 Pitney-Bowes, Inc. Double break-off screw
DE9011571U1 (fr) * 1990-08-08 1991-01-03 Gerhard Petri Gmbh + Co. Kg, 8670 Hof, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514924A1 (fr) † 1991-05-23 1992-11-25 ARCUS ELEKROTECHNIK Alois Schiffmann GmbH Vis de contact
WO1995025229A1 (fr) † 1994-03-15 1995-09-21 Sicame Electrical Developments Ltd Ameliorations apportees au serrage d'ecrous

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3974666A1 (fr) 2020-09-25 2022-03-30 Nexans Vis de cisaillement

Also Published As

Publication number Publication date
DE59404282D1 (de) 1997-11-13
EP0692643A1 (fr) 1996-01-17
ATE159085T1 (de) 1997-10-15
ES2084567T1 (es) 1996-05-16
EP0692643B1 (fr) 1997-10-08

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