EP0570680B1 - Schraubenlose Federklemme - Google Patents

Schraubenlose Federklemme Download PDF

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Publication number
EP0570680B1
EP0570680B1 EP93104315A EP93104315A EP0570680B1 EP 0570680 B1 EP0570680 B1 EP 0570680B1 EP 93104315 A EP93104315 A EP 93104315A EP 93104315 A EP93104315 A EP 93104315A EP 0570680 B1 EP0570680 B1 EP 0570680B1
Authority
EP
European Patent Office
Prior art keywords
clamping
spring
screwless
trap according
wire
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
EP93104315A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0570680A1 (de
Inventor
Franz Schrauder
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.)
Wieland Electric GmbH
Original Assignee
F Wieland Elektrische Industrie 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 F Wieland Elektrische Industrie GmbH filed Critical F Wieland Elektrische Industrie GmbH
Publication of EP0570680A1 publication Critical patent/EP0570680A1/de
Application granted granted Critical
Publication of EP0570680B1 publication Critical patent/EP0570680B1/de
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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring

Definitions

  • the invention relates to a screwless spring clip with a clamping bracket which is clamped against a busbar by a spring which can be actuated by an actuating element, in particular for installation in an insulating housing.
  • a spring clip can be found in document EP-A-0052766.
  • terminals including screwless spring terminals
  • the terminal is supplied in the open state so that the fitter does not have to open the terminal to insert a conductor, but it is sufficient to insert the conductor and then release the spring via a release link so that it can pull the clamping bracket into the clamping position while clamping the conductor.
  • the delivery of the screwless clamp in the open state requires that the clamping spring has to be strongly pretensioned against its clamping force and is stored in this state in the warehouse of the manufacturer, wholesaler or user.
  • the invention is therefore based on the object of developing a screwless spring clamp so that it can be delivered in the open position without having to pretension the clamping spring.
  • the spring is designed and arranged such that it is brought into the tensioned position by the actuating member and locked there with the clamping bracket, preferably in the manner that the spring is a leaf spring fastened with a leg on the conductor rail, the free leg of which can be hooked into the clamping bracket.
  • the clamp can be delivered open - since the spring is not yet connected to the clamping bracket and therefore does not pull it into the closed position -, the keeping open in a known manner either by a clamping friction of the rail in the the opening of the clamping bracket forming the clamping space or can be achieved by corresponding latching cams on the clamping bracket, which counteract an automatic smooth movement of the clamping bracket on the busbar, the spring force of the clamping spring then being dimensioned in such a way that it can easily cancel this slight latching .
  • the spring is in a relaxed position before the clamp is used for the first time, so that a relaxation, as with the preloaded screwless clamps, cannot take place either.
  • Two spaced-apart clamping points for a conductor-forming clamping bracket are provided, the hooking ends of which, on the side remote from the contact side for the conductor, lie bent against one another and lie essentially in one plane.
  • the hooking ends can be connected to one another with aligned openings, preferably in such a way that the two clamping brackets represent a common sheet-metal bent part, with the conductor rail between the clamping brackets on the hooking ends also possibly opposite side can be provided with a contact expression.
  • 1 denotes a busbar which is gripped by a clamping bracket 2, which can be pulled upwards by a leaf spring 3, so that an opening 4 encompassing the busbar 1 Clamping bracket inserted conductor 5 is pressed against the bottom of the busbar 1 in contact.
  • the leaf spring 3 is designed and arranged with its lower fastening leg 6 on the busbar 1 so that when the free leg 7 is pressed down with the aid of an actuating element, for example a screwdriver or an actuating button in the terminal housing, the spring is in the tensioned position a transverse opening 8 of the clamping bracket 2 hangs in and thus immediately pulls the clamping bracket upwards into the clamping position when the actuating member is released.
  • the end of the free leg 7 slides when pressed down first on the upper edge 9 of the above ie on the side of the conductor rail 5 remote from the hooking end 10 of the clamping bracket and slides down on the side until the opening 8 is reached, whereupon the end hooks into this opening immediately.
  • two clamping brackets 2 ' are provided in the embodiment according to FIG. 3, the upper actuating ends of which are bent towards one another and connected to one another, so that their openings 10 are aligned with one another.
  • two really separate clamping brackets 2 '- which would of course be possible - are subsequently connected to one another, for example soldered or the like, but the two clamping brackets 2' are parts of a common sheet-metal bent part.
  • the two clamping points arranged one behind the other also prevent a single-wire conductor, in particular, from being pivoted about the clamping point as an axis so that it can be rotated easily and the conductor being moved in the clamping point.
  • the busbar 1 between the two clamping brackets 2 ' is provided with a downward, i.e. towards the side of the conductor insertion, contact expression 11, which ensures that both even with an irregularly thick conductor or a tilted inserted conductor can come into contact (edge 12 of the opening 4).
  • Such reliable contacting of the two contact brackets 2 ′′ is given in the exemplary embodiment shown in FIGS. 5 to 7 in that the two clamping brackets are completely separate from one another and act independently of one another Parts are, the upper hook ends 10 are narrowed so that they can be arranged side by side in the same plane and their openings 8 can receive one of the fork ends 13 of the fork-shaped free leg 7 of the leaf spring 3.
  • FIG. 8 shows an electrical terminal block for mounting on carrier rails, in which two screwless spring terminals according to the invention according to the exemplary embodiment according to FIG. 3 are installed in an insulating housing 14.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Installation Of Bus-Bars (AREA)
EP93104315A 1992-05-22 1993-03-17 Schraubenlose Federklemme Expired - Lifetime EP0570680B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4216927 1992-05-22
DE4216927A DE4216927C1 (enrdf_load_stackoverflow) 1992-05-22 1992-05-22

Publications (2)

Publication Number Publication Date
EP0570680A1 EP0570680A1 (de) 1993-11-24
EP0570680B1 true EP0570680B1 (de) 1996-11-20

Family

ID=6459472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104315A Expired - Lifetime EP0570680B1 (de) 1992-05-22 1993-03-17 Schraubenlose Federklemme

Country Status (3)

Country Link
US (1) US5421749A (enrdf_load_stackoverflow)
EP (1) EP0570680B1 (enrdf_load_stackoverflow)
DE (2) DE4216927C1 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19916755B4 (de) * 1999-04-14 2007-06-28 Weidmüller Interface Gmbh & Co. Zugfederklemme
US7481683B1 (en) * 2007-09-11 2009-01-27 Fluke Corporation Retractable contact post shield and method
EP2384788B1 (fr) 2010-05-04 2012-09-26 Sorin CRM SAS Système sans vis de connexion rapide d'un connecteur de sonde à un générateur de dispositif médical implantable
DE102015106271A1 (de) * 2015-04-23 2016-10-27 Wago Verwaltungsgesellschaft Mbh Klemmverbinder
US9943685B2 (en) 2015-04-23 2018-04-17 Cyberonics, Inc. Lead engagement devices and methods for electrical stimulation and/or monitoring systems
DE102015106269A1 (de) * 2015-04-23 2016-10-27 Wago Verwaltungsgesellschaft Mbh Klemmverbinder
DE102015112433B4 (de) * 2015-07-29 2021-06-10 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
DE102016209478A1 (de) * 2016-05-31 2017-11-30 Te Connectivity Germany Gmbh Verbindungskäfig zur Verbindung zweier elektrischer Flachkontakte

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE432272C (de) * 1924-11-01 1926-08-03 Walter Erich Dipl Ing Klemme zur Verbindung elektrischer Leitungen in Anschlussgeraeten
US2027220A (en) * 1931-12-10 1936-01-07 George O Benson Clamping device
DE1040641B (de) * 1955-01-22 1958-10-09 Busch Jaeger Duerener Metall Aufreihklemme fuer elektrische Verteileranlagen
DE1104011B (de) * 1958-08-14 1961-04-06 Bbc Brown Boveri & Cie Schraubenlose Klemme
DE1119940B (de) * 1960-09-21 1961-12-21 Seger & Angermeyer Desco Werk Schraubenlose Anschlussklemme mit federbelastetem Druckkontakt
DE1194474B (de) * 1963-04-26 1965-06-10 Busch Jaeger Duerener Metall Federklemme zum Anschluss elektrischer Leitungen an Schalter u. dgl.
FR2279235A1 (fr) * 1974-05-15 1976-02-13 Telemecanique Electrique Organe de raccordement de l'extremite d'un conducteur a une broche
DE3044133C2 (de) * 1980-11-24 1982-12-16 Siemens AG, 1000 Berlin und 8000 München Schraubenlose Klemme
DE3302372A1 (de) * 1983-01-25 1984-07-26 WAGO Verwaltungsgesellschaft mbH, 4950 Minden Schraubenlose klemme
GB9001980D0 (en) * 1990-01-29 1990-03-28 Electrocomponents Plc Improvements relating to electrical connectors
JPH05129039A (ja) * 1991-11-06 1993-05-25 Kyowa Electron Instr Co Ltd 簡易操作型ターミナル装置およびその製造方法

Also Published As

Publication number Publication date
US5421749A (en) 1995-06-06
DE59304512D1 (de) 1997-01-02
EP0570680A1 (de) 1993-11-24
DE4216927C1 (enrdf_load_stackoverflow) 1993-09-23

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