US3539977A - Electrical terminal - Google Patents

Electrical terminal Download PDF

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Publication number
US3539977A
US3539977A US773154A US3539977DA US3539977A US 3539977 A US3539977 A US 3539977A US 773154 A US773154 A US 773154A US 3539977D A US3539977D A US 3539977DA US 3539977 A US3539977 A US 3539977A
Authority
US
United States
Prior art keywords
conductor
spring element
chamber
receiving
pressure member
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
US773154A
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English (en)
Inventor
Hans Woertz
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.)
OSKAR WOERTZ INH H AND O WOERTZ
Original Assignee
OSKAR WOERTZ INH H AND O WOERTZ
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 OSKAR WOERTZ INH H AND O WOERTZ filed Critical OSKAR WOERTZ INH H AND O WOERTZ
Application granted granted Critical
Publication of US3539977A publication Critical patent/US3539977A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/30Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36Conductive members located under tip of screw
    • H01R4/363Conductive members located under tip of screw with intermediate part between tip and conductive member
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural 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
    • H01R9/22Bases, e.g. strip, block, panel
    • H01R9/24Terminal blocks
    • H01R9/26Clip-on terminal blocks for side-by-side rail- or strip-mounting

Definitions

  • This invention relates to an electrical terminal to secure conductors thereto.
  • the present invention relates to an electric terminal comprising, between a pressure member and a supporting surface, a chamber for accommodating one or more conductors, and comprising a spring element which forms a boundary surface of said chamber and which is made from a strip of resilient material.
  • the object of the invention resides essentially in eliminating the stated disadvantage and in providing a terminal of the kind that is so designed that even an individual conductor can be clamped in a definite and secure position.
  • this latter is achieved essentially by at least single longitudinal edge portions of the spring elements, which are located in the zone of action of the pressure member, and projecting towards the conductor-receiving chamber in such a manner that that surface of the spring element presented to the chamber has the form of a V, open toward the chamber, in the vertical projection and in the longitudinal direction of the spring element.
  • FIG. 1 is a part side elevation and part sectional view of a terminal
  • FIG. 2 is a section taken on line IIII of FIG. 1, in the direction of the arrows;
  • FIG. 3 is a side view partly in section showing two terminals which are contained in an insulating body and have, as a pressure member, a web common to both of them.
  • the terminal in FIGS. 1 and 2 has a conductor-receiving element or casing 10, which is in the form of a piece of rectangular tubing. Inserted into the cavity 11 of the conductor-receiving element are rod-shaped pressure member 12 of rectangular cross-section and a spring element 13. Positioned between the pressure member 12 and the spring element 13 is the conductor-receiving chamber 14, into which one or more electric conductors can be pushed. A screw 15 acts upon that face of the pressure member 12 remote from the spring element 13, and this screw element is contained in a taped hole 16 in one of United States Patent @flice 3,539,977 Patented Nov. 10, 1970 the narrow sides of the conductor-receiving element 10.
  • the spring element 13 is made from a strip of resilient material and is saddle-shaped in the zone of action of the pressure member 12, the longitudinal edge portions 17 and 18 of the spring element 13 being bent upwards toward the chamber 14, so that the spring element 13, in the zone of action of the pressure member 12, is of V-shaped crosssection open towards the conductor-receiving chamber.
  • the spring element 13 has a double curved shape in the zone of action of which one curve being in the longitudinal direction of the element and the other being in the transverse direction
  • the spring element 13 can be so shaped in this zone that only individual longitudinal edge portions project toward the chamber 14, so that that surface of the spring element presented to the chamber 14 has the shape of a V, open toward the conductor-receiving chamber 14 in the vertical projection in the direction of the conductors that are to be pushed in.
  • the two longitudinal edge portions for example, can be corrugated, and corrugation of one of the longitudinal edge portions being phased oppositely, in the longitudinal direction, to the corrugation in the other portion.
  • the surface of the spring element 13, that is presented to the conductor-accommodating chamber 14, contains notches (not illustrated) which extend transversely of the longitudinal direction of the spring element 13. The notches are for the purpose of increasing the friction between the spring element 13 and the conductor or conductors to be clamped in the terminal.
  • the spring element 13 lies on the outer edges of the narrow inner face 19 of the conductor-receiving element 10, opposite the screw 15. Both end portions 20 and 21 of the element 13 are bent away from the pressure member 12. One end portion 20, which embraces the conductor-receiving element 10, is bent round through an angle of almost so that the spring element 13 is thereby attached to the conductor-receiving element 10. The other end portion 21 of the element 13 is bent at approximate right angles to the supporting surface 19 and, directly adjacent the point of bend 22, has two incisions or cut-out portions 23, which reduce the cross-section.
  • FIG. 3 shows two terminals, each as in FIG. 1, which are contained in an insulating member 24 and which incorporate, as pressure members 12, a web 25 which is common to both terminals.
  • the terminal disposed on the left in the insulating member 24, together with the conductor-receiving element 10a, is thus completely enclosed, that is, the conductor-receiving element 10a is pulled up against the web 25 b means of the screw 15, while the terminal shown on the right, together with the conductor-receiving element 10b, is fully open and ready to receive conductors.
  • Pieces 26 of flexible insulating tubing are pushed over the end portions 21 of the spring elements 13, which portions are bent at approximately rightangles. As can be seen from FIG.
  • the downwardly angled end portions 21 of the spring elements 13 prevent unintentional insertion of conductors into the cavities 27 below the conductor-receiving elements 10a and 10b in the insulating member 24.
  • the flexible insulating tubes 26, pushed over the end portions 21 of the spring elements 13, thereby perform the function of reducing the spaces between the longitudinal edges of the angled end portions 21 and the inner face of the side wall of the insulating member 24 and the outer face of the side wall of a closure member, not illustrated in the drawing, or of an adjacent insulating member.
  • the spring element 13 tilts on the" supporting surface 19 in such a way thatthe other;longitudinal edge portion 18 is pressed upwards against 'the thinner conductor. In this way, the thinner conductor is also clamped between the pressure member
  • The'spring element 13 thus not only performs the function of a safety means for preventing loosening of a tightened screw 15, but it also takes over the role of matchingtlie cross-section of the conductor-receiving chamber to thecross-sectional forms of the conductors that are to be clamped.
  • Electric terminal comprising a casing having a supporting surface, a pressure member in" the casing, said casing having a chamber for receiving at least one conductor, and a spring element forming a boundary surface of the conductor-receiving"chamber and which is formed from a strip' of resilient material, said spring element having longitudinal edge portions which are located in a Zone of action of the pressure member and projecting'toward and into the conductor-receiving chamberso that a surface of the spring element presented to the conductor-receiving chamber having the form of a V, open toward the conductor-receiving chamber in the perpendicular projection as to the longitudinal direction of the spring element, the spring element being eurved' in the zone of action of the pressure member in the longitudinal direction of the spring element.
  • Electric terminal comprising a casing having a supporting surface, a pressure member in the casing, said casing having a chamber for receiving at least one conductor, and a spring element forming a boundary surface of the conductor-receiving chamber and which is formed from a strip of resilient rn'aterial,'saidspring element having longitudinal edge portions which are. located in a zone of action of the pressure member a'nd'projecting toward and" into the conductor-receiving chamber so that a surface of the spring element presented to the conductor-receiving chamber having the form'of a V, open toward the conductor-receiving chamber" in the perpendicular pro-,
  • the spring element having an end portion bent away from the casing outside a bearing surfaceof the casing at least approximately at right angles to said surface, and at least one of the longitudinal edges of the bent-away end portion having atleast one cut-out portion to reduce the cross-section thereof adjacent a point where the spring element is bent.

Landscapes

  • Clamps And Clips (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Installation Of Indoor Wiring (AREA)
US773154A 1967-11-13 1968-11-04 Electrical terminal Expired - Lifetime US3539977A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1581967A CH456714A (de) 1967-11-13 1967-11-13 Elektrische Klemme

Publications (1)

Publication Number Publication Date
US3539977A true US3539977A (en) 1970-11-10

Family

ID=4412199

Family Applications (1)

Application Number Title Priority Date Filing Date
US773154A Expired - Lifetime US3539977A (en) 1967-11-13 1968-11-04 Electrical terminal

Country Status (4)

Country Link
US (1) US3539977A (de)
CH (1) CH456714A (de)
DE (1) DE1802558C3 (de)
GB (1) GB1254566A (de)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659253A (en) * 1970-02-28 1972-04-25 Siemens Ag Frame clamp for electrically connecting electrical leads
US3683321A (en) * 1970-06-17 1972-08-08 Siemens Ag Frame clamp for electrically connecting electrical leads
US3824553A (en) * 1973-06-22 1974-07-16 Amp Inc Low voltage terminal strip capable of withstanding high voltage transients
US4004846A (en) * 1975-03-25 1977-01-25 Oskar Woertz, Inhaber Hans Woertz Electrical terminal
US4164776A (en) * 1976-11-10 1979-08-14 Hisao Nakamura Electronic combination controlled means
US4213669A (en) * 1978-09-11 1980-07-22 Gte Sylvania Wiring Devices Incorporated Terminal collar
US4659169A (en) * 1982-11-29 1987-04-21 North American Philips Corporation Dead front terminal block assembly
US4810212A (en) * 1987-08-10 1989-03-07 Connectron, Inc. Terminal blocks for one-side wire entry and screw access
EP0683498A1 (de) * 1994-05-18 1995-11-22 Legrand Modulares elektrisches Gerät mit Anschlussklemmen geschützt durch eine isolierende Platte
FR2720862A1 (fr) * 1994-06-06 1995-12-08 Schneider Electric Sa Borne de raccordement pour un appareillage électrique.
FR2738676A1 (fr) * 1995-09-11 1997-03-14 Legrand Sa Appareil electrique a bornes de raccordement protegees par un diaphragme
FR2740911A1 (fr) * 1995-11-03 1997-05-09 Legrand Sa Appareil electrique a bornes de raccordement protegees par un diaphragme a fixation par des ailes
US6293830B1 (en) * 1999-07-21 2001-09-25 Samsung Electronics Co., Ltd. Terminal connecting device having a restraining structure
US20030076204A1 (en) * 2001-10-19 2003-04-24 Whipple Michael Jerome Quick connect terminal for electric power switch
US20040015200A1 (en) * 2000-12-20 2004-01-22 Charlotte Lofstedt Electrode terminal fixation appliance
EP1746619A1 (de) * 2001-03-20 2007-01-24 Moeller Gebäudeautomation GmbH Klemmhilfe
US7413487B1 (en) * 2007-04-03 2008-08-19 Surtec Industries Inc. Signal line connector
FR2917243A1 (fr) * 2007-06-11 2008-12-12 Schneider Electric Ind Sas Borne de raccordement electrique et appareil de protection electrique comportant une telle borne
US20100087083A1 (en) * 2007-03-18 2010-04-08 Phoenix Contact Gmbh & Co. Kg Pe connection for plug connectors
US20100267258A1 (en) * 2009-04-17 2010-10-21 Chun-Te Lee Wedge of a cable connector grounding device
US8435053B1 (en) * 2011-12-28 2013-05-07 Chun-Te Lee Cable connector with an oblique ground adapter
US20130210268A1 (en) * 2012-02-15 2013-08-15 Morsettitalia S.P.A. Conductive Gripping Element for Retaining and Conductively Connecting Electric Wires
US20140113507A1 (en) * 2012-10-23 2014-04-24 Schneider Electric Industries Sas Flexible tunnel for a connection terminal and terminal comprising one such tunnel
US8870608B2 (en) * 2012-09-14 2014-10-28 Schneider Electric USA, Inc. Open spring mechanical clamping lug
US20160226160A1 (en) * 2013-09-04 2016-08-04 Wago Verwaltungsgesellschaft Mbh Spring-loaded connection terminal

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK121662B (da) * 1969-06-19 1971-11-15 Siemens Ag Rammeklemme til tilslutning af elektriske ledninger.
DE2452091C3 (de) * 1974-11-02 1979-01-11 Danfoss A/S, Nordborg (Daenemark) Vorrichtung zum Festklemmen miteinander elektrisch zu verbindender Leiter
EP0271594B1 (de) * 1986-12-16 1992-04-22 Weidmüller Interface GmbH & Co. Klemmvorrichtung
DE10228137B4 (de) * 2002-06-07 2011-01-13 Arcus Elektrotechnik Alois Schiffmann Gmbh Fixiereinrichtung sowie Schraubverbinder für Kabelleiter mit einer derartigen Fixiereinrichtung
DE102022205610A1 (de) 2022-06-01 2023-12-07 Siemens Aktiengesellschaft Untersteckschutzteil

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1810901A (en) * 1929-09-16 1931-06-23 Smith Corp A O Weldrod holder for electric arc welding
DE736802C (de) * 1941-02-12 1943-06-28 Wester Ebbinghaus & Co Maulklemme zum Anschluss von elektrischen Stromleitern
US2805402A (en) * 1956-02-10 1957-09-03 Charles L Lucal Pressure type solderless connector
US2950457A (en) * 1955-05-12 1960-08-23 Saul I Slater Electrical outlet device
US3124409A (en) * 1964-03-10 electrical connector
US3246283A (en) * 1963-12-23 1966-04-12 Huska Paul Accessible, self-mounting terminal block

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB183022A (en) * 1921-06-10 1922-07-20 Percy Baynard Handley Improvements in or relating to electric terminals
CH198810A (de) * 1936-12-03 1938-07-15 Licentia Gmbh Anschlussklemme mit Zwischenplatte.
DE1262400B (de) * 1960-02-08 1968-03-07 C A Weidmueller K G Leitungsklemme, insbesondere fuer Luesterklemmen
US2973212A (en) * 1960-03-28 1961-02-28 Leslie W Rose Electric connectors for outlet boxes
DE1935560U (de) * 1964-02-21 1966-03-31 Georg Schlegel Elektrotechnisc Anschlussklemme fuer einen oder mehrere elektrische leiter.
DE1950664U (de) * 1966-09-22 1966-12-01 C A Weidmueller K G Zugbuegelklemme, insbesondere fuer reihenklemmen.
DE1998537U (de) * 1968-06-25 1968-12-19 Licentia Gmbh Buchsenklemme.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124409A (en) * 1964-03-10 electrical connector
US1810901A (en) * 1929-09-16 1931-06-23 Smith Corp A O Weldrod holder for electric arc welding
DE736802C (de) * 1941-02-12 1943-06-28 Wester Ebbinghaus & Co Maulklemme zum Anschluss von elektrischen Stromleitern
US2950457A (en) * 1955-05-12 1960-08-23 Saul I Slater Electrical outlet device
US2805402A (en) * 1956-02-10 1957-09-03 Charles L Lucal Pressure type solderless connector
US3246283A (en) * 1963-12-23 1966-04-12 Huska Paul Accessible, self-mounting terminal block

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659253A (en) * 1970-02-28 1972-04-25 Siemens Ag Frame clamp for electrically connecting electrical leads
US3683321A (en) * 1970-06-17 1972-08-08 Siemens Ag Frame clamp for electrically connecting electrical leads
US3824553A (en) * 1973-06-22 1974-07-16 Amp Inc Low voltage terminal strip capable of withstanding high voltage transients
US4004846A (en) * 1975-03-25 1977-01-25 Oskar Woertz, Inhaber Hans Woertz Electrical terminal
US4164776A (en) * 1976-11-10 1979-08-14 Hisao Nakamura Electronic combination controlled means
US4213669A (en) * 1978-09-11 1980-07-22 Gte Sylvania Wiring Devices Incorporated Terminal collar
US4659169A (en) * 1982-11-29 1987-04-21 North American Philips Corporation Dead front terminal block assembly
US4810212A (en) * 1987-08-10 1989-03-07 Connectron, Inc. Terminal blocks for one-side wire entry and screw access
EP0683498A1 (de) * 1994-05-18 1995-11-22 Legrand Modulares elektrisches Gerät mit Anschlussklemmen geschützt durch eine isolierende Platte
FR2720195A1 (fr) * 1994-05-18 1995-11-24 Legrand Sa Appareil électrique modulaire à bornes de raccordement protégées par une plaquette isolante.
FR2720862A1 (fr) * 1994-06-06 1995-12-08 Schneider Electric Sa Borne de raccordement pour un appareillage électrique.
EP0687032A1 (de) 1994-06-06 1995-12-13 Schneider Electric Sa Schraubauschlussklemme für eine elektrische Vorrichtung
US5580285A (en) * 1994-06-06 1996-12-03 Schneider Electric S.A. Connection terminal for an electrical apparatus
FR2738676A1 (fr) * 1995-09-11 1997-03-14 Legrand Sa Appareil electrique a bornes de raccordement protegees par un diaphragme
FR2740911A1 (fr) * 1995-11-03 1997-05-09 Legrand Sa Appareil electrique a bornes de raccordement protegees par un diaphragme a fixation par des ailes
EP0772256A3 (de) * 1995-11-03 1997-05-14 Legrand Elektrisches Gerät mit Anschlussklemmen geschützt dürch eine Blende verbindet mit Flügel
US6293830B1 (en) * 1999-07-21 2001-09-25 Samsung Electronics Co., Ltd. Terminal connecting device having a restraining structure
US20040015200A1 (en) * 2000-12-20 2004-01-22 Charlotte Lofstedt Electrode terminal fixation appliance
US6799073B2 (en) * 2000-12-20 2004-09-28 St. Jude Medical Ab Electrode terminal fixing appliance
EP1746619A1 (de) * 2001-03-20 2007-01-24 Moeller Gebäudeautomation GmbH Klemmhilfe
CN100423159C (zh) * 2001-03-20 2008-10-01 莫勒自动系统公司 夹线辅助元件
US20030076204A1 (en) * 2001-10-19 2003-04-24 Whipple Michael Jerome Quick connect terminal for electric power switch
US6781491B2 (en) * 2001-10-19 2004-08-24 Eaton Corporation Quick connect terminal for electric power switch
US20100087083A1 (en) * 2007-03-18 2010-04-08 Phoenix Contact Gmbh & Co. Kg Pe connection for plug connectors
US7938693B2 (en) * 2007-03-18 2011-05-10 Phoenix Contact Gmbh & Co. Kg PE connection for plug connectors
US7413487B1 (en) * 2007-04-03 2008-08-19 Surtec Industries Inc. Signal line connector
FR2917243A1 (fr) * 2007-06-11 2008-12-12 Schneider Electric Ind Sas Borne de raccordement electrique et appareil de protection electrique comportant une telle borne
EP2003733A1 (de) * 2007-06-11 2008-12-17 Schneider Electric Industries SAS Elektrische Anschlussklemme und eine solche Klemme umfassendes elektrisches Schutzgerät
US7909623B2 (en) * 2009-04-17 2011-03-22 Chun-Te Lee Wedge of a cable connector grounding device
US20100267258A1 (en) * 2009-04-17 2010-10-21 Chun-Te Lee Wedge of a cable connector grounding device
US8435053B1 (en) * 2011-12-28 2013-05-07 Chun-Te Lee Cable connector with an oblique ground adapter
US20130210268A1 (en) * 2012-02-15 2013-08-15 Morsettitalia S.P.A. Conductive Gripping Element for Retaining and Conductively Connecting Electric Wires
US8882534B2 (en) * 2012-02-15 2014-11-11 Morsettitalia S.P.A. Conductive gripping element for retaining and conductively connecting electric wires
US8870608B2 (en) * 2012-09-14 2014-10-28 Schneider Electric USA, Inc. Open spring mechanical clamping lug
US20140113507A1 (en) * 2012-10-23 2014-04-24 Schneider Electric Industries Sas Flexible tunnel for a connection terminal and terminal comprising one such tunnel
US9153881B2 (en) * 2012-10-23 2015-10-06 Schneider Electric Industries Sas Flexible tunnel for a connection terminal and terminal comprising one such tunnel
US20160226160A1 (en) * 2013-09-04 2016-08-04 Wago Verwaltungsgesellschaft Mbh Spring-loaded connection terminal
US9601844B2 (en) * 2013-09-04 2017-03-21 Wago Verwaltungsgesellschaft Mbh Spring-loaded connection terminal

Also Published As

Publication number Publication date
DE1802558A1 (de) 1969-08-14
CH456714A (de) 1968-07-31
DE1802558C3 (de) 1974-01-31
GB1254566A (en) 1971-11-24
DE1802558B2 (de) 1971-08-19

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