US3539977A - Electrical terminal - Google Patents
Electrical terminal Download PDFInfo
- 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
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
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
- H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive 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
- 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
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)
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)
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)
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)
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)
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. |
-
1967
- 1967-11-13 CH CH1581967A patent/CH456714A/de unknown
-
1968
- 1968-10-11 DE DE1802558A patent/DE1802558C3/de not_active Expired
- 1968-11-04 US US773154A patent/US3539977A/en not_active Expired - Lifetime
- 1968-11-13 GB GB53790/68A patent/GB1254566A/en not_active Expired
Patent Citations (6)
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)
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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