EP0280672B1 - Verbindungsklemme für elektrisches Einrichtungsgerät - Google Patents

Verbindungsklemme für elektrisches Einrichtungsgerät Download PDF

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Publication number
EP0280672B1
EP0280672B1 EP88870024A EP88870024A EP0280672B1 EP 0280672 B1 EP0280672 B1 EP 0280672B1 EP 88870024 A EP88870024 A EP 88870024A EP 88870024 A EP88870024 A EP 88870024A EP 0280672 B1 EP0280672 B1 EP 0280672B1
Authority
EP
European Patent Office
Prior art keywords
clamp
bolt
compartment
terminal according
casing
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
EP88870024A
Other languages
English (en)
French (fr)
Other versions
EP0280672A1 (de
Inventor
Günter Böker
Dieter Kropp
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.)
Dite Vynckier (societe De Droit Belge) Ste
Original Assignee
Dite Vynckier (societe De Droit Belge) Ste
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 Dite Vynckier (societe De Droit Belge) Ste filed Critical Dite Vynckier (societe De Droit Belge) Ste
Priority to AT88870024T priority Critical patent/ATE84641T1/de
Publication of EP0280672A1 publication Critical patent/EP0280672A1/de
Application granted granted Critical
Publication of EP0280672B1 publication Critical patent/EP0280672B1/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
    • 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
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut

Definitions

  • connection terminal for electrical installation apparatus comprising an approximately annular clamping box which is engaged with a clamping bracket by means of a bolt and which, within a zone predetermined by the clamping bracket, is guided so as to be able to slide in height in a compartment of the housing of the apparatus of the installation, by cooperation with the bolt and a retaining device acting so as to produce a connection controlled by a strength.
  • connection terminal is for example described in DE-U-83 17 416 and it is advantageously used in line protection circuit breakers for the connection of both busbars and single-wire conductors.
  • the automatic locking of the clamping box in an arbitrarily adjusted position is obtained here by means of a leaf spring inserted in the housing.
  • This retaining device has the disadvantage of an additional part for which are required, in addition to manufacturing costs, assembly costs.
  • the object of the invention is to develop, for the abovementioned connection terminal, a retaining device which is even simpler in structure and which is shaped favorably for installation, while guaranteeing inexpensive manufacture.
  • connection terminal having the characteristic features of claim 1.
  • Advantageous improvements and embodiments of the invention are also the subject of the secondary claims.
  • the invention is advantageous insofar as the retaining device for the height-adjustable clamping box can be directly shaped during the production of the parts of the housing. This eliminates an additional part and saves assembly costs.
  • the protrusions of the retainer are arranged so that the upper position of the clamping box is normally kept as the basic position during the manufacture of the device and that the terminal bolt also receives a corresponding higher assignment. This identical position for all devices does not change either during transport or during handling at the mounting location.
  • connection terminal forms a practical installation aid.
  • Figure 1 shows a sectional view of a first embodiment of a connection terminal according to the invention, from the side of the connection and with the clamping box located in an extreme upper position.
  • Figure 2 shows the connection terminal with a lowered clamping box which is in its position lower extreme.
  • Figures 3 and 4 show views, corresponding to the above representations, of a second embodiment of a connection terminal according to the invention.
  • the connection terminal includes a metal clamp 1 approximately in the shape of a U or a frame, in a side view, which is fixedly anchored in a housing 2, made of an insulating material, of an apparatus for installation not shown in detail.
  • a passage hole 1a ⁇ through which a bolt 3 penetrates into a tapped hole 4a of an approximately annular metallic clamping box 4.
  • This surrounds a lower wing 1b of the clamping bracket and it is guided so as to be able to slide in height in a compartment 2a of the housing composed of two shells 2b, 2c.
  • the clamping box 4 can be made to slide inside a sliding zone "s" from an extreme upper position (FIGS. 1 or respectively 3) to an extreme lower position (FIGS. 2 or respectively 4), depending the bolting depth of the bolt 3.
  • the embodiment of the clamping bracket 1 guarantees, in cooperation with the compartment, the guidance of the clamping box and sufficient protection against torsion.
  • a retaining device is arranged in the compartment in the form of two elastic projections 2d, 2e which are arranged in lateral projection and which, in the extreme upper position, take slightly below the lower side 4b of the clamping box, fixing the latter in its position .
  • the projections 2d, 2e, arranged one opposite the other, are preferably made in the form of lips and they are, with sufficient flexibility, shaped, in particular by molding, directly during manufacture, on the shells 2b, 2c of the housing made of thermoplastic material.
  • an elastic tongue 2g which is shaped on the housing in the region of the upper wing 1a of the clamping bracket 1, is arranged as a retaining device in the compartment 2a.
  • the elastic tongue previously bent in the compartment, represents, in an isolated form, part of the wall of the compartment and exerts, from one side, an elastic pressure on the clamping box 4 which is therefore pressed on the opposite wall of the compartment and is held by a force-controlled link.
  • This latter wall can additionally also be provided with a lip-shaped projection 2d ⁇ to thereby determine the upper position of the clamping box (FIG. 3).
  • a busbar not shown which can be inserted between a head 3a of the terminal bolt and the upper wing 1a of the clamping bracket.
  • the bolt head which is partially covered by a plate in console 2f, is accessible via an opening 2f ⁇ arranged concentrically, so that the bolt can be actuated by a screwdriver. In the case of a current right-hand thread, a rotation to the right causes the busbar to be tightened.
  • Rotating the terminal bolt to the left has the effect that the bolt head, by its marginal zone, comes to bear on the plate in console 2f. This then forms a fixed counter-stop so that the terminal bolt brings, in accordance with the rotation to the left, the clamping box to slide between the elastic projections, in the direction of the lower extreme position.
  • the latter is provided with approximately parallel side surfaces 4c, in the sliding zone of the projections or respectively of the elastic tongue.
  • the sliding of the clamping box in the lower position can also be obtained by manual pressure on the bolt head.
  • the clamping box is again pulled upwards between the projections, until, depending on the cross-sections of the conductors, the terminal bolt and the box tighten each other.
  • the clamping yoke serves here as a stop intended to oppose the pressing force produced by the terminal bolt.
  • the length of the terminal bolt is adjusted on the clamping bracket.
  • the cooperation of all the parts of the connection terminal gives an advantageous installation aid, the console plate 2f preventing the fall of the terminal bolt and also guaranteeing safety against any involuntary contact with conductive parts current.
  • a comparable retaining device for the clamping box can be introduced, as an additional part, directly during manufacture or even later during mounting.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Adornments (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Claims (10)

  1. Anschlußklemme für elektrisches Installationsgerät und dessen Gehäuse mit einem über eine Klemmenschraube im Eingriff mit einem Druckbügel befindlichen, etwa ringförmigen Klemmkasten, der innerhalb eines durch den Druckbügel vorgegebenen Bereiches im Zusammenwirken mit der Klemmenschraube und einer angreifenden Haltevorrichtung in einer Gehäusekammer des Installationsgerätes höhenverschieblich geführt ist, dadurch gekennzeichnet, daß die Haltevorrichtung mittels elastischer Ansätze (2d, 2e) gebildet ist, die direkt in der Gehäusekammer (2a) angeformt sind, hergestellt aus thermoplastischem Material vorstehend gegen die Seitenflächen (4c) des Klemmkastens (4),und die während der Gleitbewegung einen seitlichen Druck auf den Klemmkasten (4) ausüben.
  2. Anschlußklemme nach Anspruch 1, dadurch gekennzeichnet, daß in der Gehäusekammer (2a) beiderseits des Klemmkastens zwei Ansätze (2d, 2e) lippenförmig gegenüberliegend und quer zur Schubrichtung angeformt sind.
  3. Anschlußklemme nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Klemmkasten (4) in seiner oberen Endstellung von den seine Unterseite (4b) geringfügig hintergreifenden Ansätzen (2d, 2e) selbsthemmend gehalten ist.
  4. Anschlußklemme nach Anspruch 1, dadurch gekennzeichnet, daß in der Gehäusekammer (2a) seitlich des Klemmkastens (4) als Teil der Kammerwand ausgebildete, einseitig angebundene Federzungen (2g) angeordnet sind.
  5. Anschlußklemme nach Anspruch 4, dadurch gekennzeichnet, daß die Federzungen (2g) im Bereich des oberen Schenkels (1a) des Druckbügels (1) am Gehäuse (2) angeformt und im übrigen freistehend in die Gehäusekammer (2a) greifend gegen den Klemmkasten (4) vorgewölbt angeordnet sind.
  6. Anschlußklemme nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Gehäusekammer (2a) lediglich auf einer Wandseite eine Federzunge (2g) aufweist und die gegenüberliegende Wandseite ebenflächig ausgebildet oder mit einem den Klemmkasten (4) in seiner oberen Endstellung geringfügig untergreifenden lippenförmigen Ansatz (2d') versehen ist.
  7. Anschlußklemme nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Klemmenschraube (3) oberhalb ihres Schraubenkopfes (3a) mittels einer am Gehäuse (2) mit Abstand zum Druckbügel (1) vorstehend angeordneten Kragplatte (2f) in der Höhenverstellung begrenzt ist.
  8. Anschlußklemme nach Anspruch 7, dadurch gekennzeichnet, daß die Kragplatte (2f) zum Absenken des Klemmkastens (4) entgegen der Haltekraft der beiden Ansätze (2d, 2e) als Gegenlager der Klemmenschraube (3) ausgebildet ist.
  9. Anschlußklemme nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Kragplatte (2f) oberhalb des Schraubenkopfes (3a) mit einer Öffnung (2f') zum Betätigen der Klemmschraube (3) versehen ist.
  10. Anschlußklemme nach Anspruch 7, 8 oder 9, dadurch gekennzeichnet, daß die Klemmenschraube (3) im Zusammenwirken mit der Kragplatte (2f) unverlierbar gehalten ist.
EP88870024A 1987-02-25 1988-02-22 Verbindungsklemme für elektrisches Einrichtungsgerät Expired - Lifetime EP0280672B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88870024T ATE84641T1 (de) 1987-02-25 1988-02-22 Verbindungsklemme fuer elektrisches einrichtungsgeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8702835U DE8702835U1 (de) 1987-02-25 1987-02-25 Anschlußklemme für elektrische Installationsgeräte
DE8702835U 1987-02-25

Publications (2)

Publication Number Publication Date
EP0280672A1 EP0280672A1 (de) 1988-08-31
EP0280672B1 true EP0280672B1 (de) 1993-01-13

Family

ID=6805139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88870024A Expired - Lifetime EP0280672B1 (de) 1987-02-25 1988-02-22 Verbindungsklemme für elektrisches Einrichtungsgerät

Country Status (3)

Country Link
EP (1) EP0280672B1 (de)
AT (1) ATE84641T1 (de)
DE (2) DE8702835U1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU48110B (sh) * 1990-05-02 1997-03-07 Naimer Hubert Laurenc Vijčana spojnica
DE69204754T2 (de) * 1991-06-14 1996-05-02 Molex Inc Klemmleiste für gedruckte Leiterplatten.
DE4133705A1 (de) * 1991-10-11 1993-04-15 Felten & Guilleaume Energie Schraubklemme fuer elektrische installationsgeraete
DE4228829C1 (de) * 1992-09-01 1993-11-18 Elektroinstallation Annaberg G Anschlußklemme für ein elektrisches Installationsgerät
FR2728107B1 (fr) * 1994-12-12 1997-01-17 Schneider Electric Sa Bloc de jonction
DE19513281A1 (de) * 1995-04-07 1996-10-10 Kopp Heinrich Ag Kombianschlußklemme
DE19951789A1 (de) * 1999-10-27 2001-05-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Anschlussklemme
DE10018354C2 (de) * 2000-04-13 2002-03-14 Siemens Ag Klemmenanordnung
AT410613B (de) * 2001-03-20 2003-06-25 Moeller Gebaeudeautomation Kg Liftklemme
EP3144952B1 (de) * 2015-09-15 2018-03-28 Siemens Aktiengesellschaft Montagevorrichtung, schutzschaltersystem und verfahren zur verbesserung der befestigung eines leistungsschalters mit gegossenem gehäuse an einer stromschiene
CN108923137B (zh) * 2018-07-05 2021-03-09 菲尼克斯亚太电气（南京）有限公司 一种idc免剥线接线装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3314919C2 (de) * 1983-04-25 1985-03-28 Murr-Elektronik Gmbh, 7155 Oppenweiler Schraubanschlußklemme
DE8317416U1 (de) * 1983-06-15 1983-12-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anschlußklemme für elektrische Installationsgeräte
DE8323687U1 (de) * 1983-08-17 1983-12-01 Siemens AG, 1000 Berlin und 8000 München Kopfkontaktschraube mit Schutz gegen Berühren

Also Published As

Publication number Publication date
DE3877379T2 (de) 1993-07-29
DE3877379D1 (de) 1993-02-25
ATE84641T1 (de) 1993-01-15
EP0280672A1 (de) 1988-08-31
DE8702835U1 (de) 1988-03-24

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