EP0862242B1 - Anschlussklemme für Schraubensicherung - Google Patents
Anschlussklemme für Schraubensicherung Download PDFInfo
- Publication number
- EP0862242B1 EP0862242B1 EP98103065A EP98103065A EP0862242B1 EP 0862242 B1 EP0862242 B1 EP 0862242B1 EP 98103065 A EP98103065 A EP 98103065A EP 98103065 A EP98103065 A EP 98103065A EP 0862242 B1 EP0862242 B1 EP 0862242B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- terminal
- screw
- contact surface
- insulating body
- latching
- 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
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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
- H01R4/301—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing complete unscrewing of screw or nut
Definitions
- the invention relates to a terminal with screw locking according to the preamble of claim 1.
- Such terminals find especially in electrical switchgear, for example protect, use.
- Screw locks serve to secure the clamping washers in one for the Favorable delivery condition for customers.
- a connecting terminal is known from DE 41 34 004 A1, consisting of an insulating body, an electrically conductive connector that is firmly attached to the insulating body mounted and provided with a threaded hole is, and a clamping screw with a threaded shaft, which in the threaded hole is to be screwed in and a head, which is provided with an external thread, which at the end of the Unscrewing with an attached to the insulating body with an internally threaded element can interact, so that the stop and the exit movement of the clamping screw remains largely guaranteed when they leave unscrewed further from the threaded hole of the connecting part becomes.
- the disadvantage here is the poor vibration resistance the unscrewed condition of the clamping screw, its costly Training as having an external thread Head and the risk of screwing the internal thread to damage.
- DE 27 15 572 C2 is a screw lock for securing of at least one with a clamping disc loose and captive connected clamping screw of a terminal block on one Switchgear against falling out in its turned-up position by means of walls located above the heads of the clamping screws and arranged therein, opposite the head diameters narrowed access openings for a screwdriver known. These openings are in between partitions of the terminal points insertable wall parts provided in the grooves of outer boundary walls of the terminal strip self-holding as well are detachably locked.
- the clamping screws with Clamping washers and one corresponding to the number of clamping screws Number of conductive connectors and an inner one Cover for the control room cover and one arranged above it contains outer cover as an insertion aid.
- the outer lid is with continuous coaxial to the clamping screws Access openings for a screwing tool and locking means for Snap on the switching device.
- the control room cover is with edge-extending, the clamping screws assigned holding flanges with coaxial to the Clamping screws and access openings of the insertion aid are arranged Through holes formed in which the clamping screws held captive when screwed up are.
- the insertion aid is at the access openings then with the edge protruding downwards resiliently spreadable and the holding flanges of the control room cover comprehensive locking bars.
- the rest bars have an inside assigned to each access opening protruding molded locking cams. So that are the clamping screws both during transport against screwing in as well secured against falling out of the removed insertion aid, however, here is a specially trained exterior Cover required.
- the invention is therefore based on the object of a connecting terminal with a simplified and improved screw lock specify.
- the clamping screw can only be turned down when you deliberately turn it down the clamping screw by snapping under the locking cams to be brought.
- the locking bar is easy for the expert to arrange the insulating body in such a way that it is neither through a screwing tool entering the access opening can be damaged by electrical conductors to be inserted.
- the contact surface consists of two Partial contact surfaces or a single elongated contact surface exists and is formed symmetrically with respect to the locking cam is, a defined tilting level for the in general slightly curved clamping disc formed.
- a flat parallel guidance is appropriate and leaves just make yourself. With a step-by-step parallel guidance the clamping disc gradually reaches when it is turned up in the defined position required for the locking cam.
- each terminal 4 is in a molded housing of a switching device trained insulating body 2 three rows of terminals 4, 6 and 8 in different levels to each other staggered. Via lateral connection openings 41, 61 or 81 of the insulating body 2 is each terminal 4, 6 or 8 for external electrical conductors to be connected. Via front access openings 42, 62 and 82 in the Insulating body 2 are the terminals 4, 6 and 8 by means of operated by a screwdriver. One each in the insulating body 2 permanently mounted electrically conductive connecting part 43, 63 or 83 leads from the terminals 4, 6 or 8 ins Interior of the switching device.
- Each terminal 4, 6 or 8 contains a clamping screw 44, 64 and 84, with its threaded shaft 45, 65 and 85 captive a clamping disc 46, 66 or 86 is loosely connected.
- the clamping screws 44, 64 and 84 are more or less with their threaded shafts 45, 65 or 85 screwed into an internal thread of the associated Connection parts 43, 63 and 83.
- each clamping screw 44, 64 and 84 each have an elongated elastic locking web 48, 68 and 88 formed, the parallel to the corresponding clamping screw axis 49, 69 or 89 runs and at its free end with a locking cam 50, 70th or 90 is provided.
- each locking cam 50, 70 or 90 runs perpendicular to the clamping screw axis 49, 69 and 89 a contact surface 51, 71 or 91.
- the contact surface 51, 71 and 91 consists of two arranged symmetrically to the locking cams 50, 70 and 90 Part contact surfaces 31 and 32, which are also in the insulating body 2 are trained.
- the clamping screw 44, 64 or 84 When turning the clamping screw 44, 64 or 84, the clamping disc 46, 66 or 86 comes out of it completely screwed in the connecting part 43, 63 or 83 (Fig. 3) in an intermediate layer (Fig. 4) in which a first Outer edge 52, 72 and 92 of the clamping disc 46, 66 and 86 in Contact with the associated locking cams 50, 70 and 90 comes.
- the threaded shaft 45, 65 or 85 is still in connection with the internal thread of the connecting part 43, 63 and 83.
- the screw lock described remains the screwed up Position of the clamping screws 44, 64 and 84 when open the clamping disks 46, 66 and 86 are vibration-proof.
- a safe one Snap the locking cam 50, 70 or 90 over the clamping disc 46, 66 or 86, this is along their second outer edge 53, 73 and 93 below the plane of each Latch cams 50, 70 and 90, i.e.
- parallel guidance 54, 74 and 94 are necessary graduated in two stages by moving along their axis to the clamping screw 49, 69 and 89 parallel longitudinal extension with getting closer to the contact surface 51, 71 and 91 of the Clamping screw axis 49, 69 or 89 is approaching.
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Discharge Heating (AREA)
Description
- Figur 1:
- die geschnittene Seitenansicht des Gehäuses eines elektrischen Schaltgerätes mit drei gegeneinander versetzt angeordneten Reihen von erfindungsgemäßen Anschlußklemmen, die mit Schraubensicherungen ausgestattet sind;
- Figur 2:
- die gegenüber Fig. 1 um 90° versetzte und teilweise in der Schnittebene II-II geschnittene Seitenansicht;
- Figur 3:
- die vergrößerte Einzelheit IV aus Fig. 1 mit heruntergedrehter Klemmschraube;
- Figur 4:
- die vergrößerte Einzelheit VI aus Fig. 1 mit teilweise hochgedrehter Klemmschraube;
- Figur 5:
- die vergrößerte Einzelheit VIII aus Fig. 1 mit vollständig hochgedrehter Klemmschraube.
- 2
- Isolierkörper
- 31; 32
- Teilanlagefläche
- 4 ; 6 ; 8
- Anschlußklemme
- 41; 61; 81
- Anschlußöffnung
- 42; 62; 82
- Zutrittsöffnung
- 43; 63; 83
- Anschlußteil
- 44; 64; 84
- Klemmschraube
- 45; 65; 85
- Gewindeschaft
- 46; 66; 86
- Klemmscheibe
- 47; 67; 87
- Kopf
- 48; 68; 88
- Raststeg
- 49; 69; 89
- Klemmschraubenachse
- 50; 70; 90
- Rastnocken
- 51; 71; 91
- Anlagefläche
- 52; 72; 92
- erste Außenkante
- 53; 73; 93
- zweite Außenkante
- 54; 74; 94
- Parallelführung
Claims (6)
- Anschlußklemme mit Schraubensicherung für eine mit einer unverlierbaren Klemmscheibe (46; 66; 86) lose verbundenen Klemmschraube (44; 64; 84) für einen elektrischen Leiter, wobei ein elektrisch leitendes Anschlußteil (43; 63; 83) mit einem Innengewinde für den Gewindeschaft (45; 65; 85) der Klemmschraube (44; 64; 84) in einem Isolierkörper (2) fest montiert ist, in dem Isolierkörper (2) eine Zutrittsöffnung (42; 62; 82) zu dem Kopf (47; 67; 87) der Klemmschraube (44; 64; 84) vorgesehen ist, neben der Zutrittsöffnung (42; 62; 82) ein nach innen vorstehender, seitlich federnd abspreizbarer sowie mit einem endseitig ausgebildeten Rastnocken (50; 70; 90) versehener Raststeg (48; 68; 88) ausgebildet ist und die Schraubensicherung zur Sicherung des weitgehend hochgedrehten Anlieferungszustandes der Klemmschraube (44; 64; 84) dient, dadurch gekennzeichnet, daßgegenüber dem Rastnocken nach oben versetzt (50; 70; 90) sowie im wesentlichen senkrecht zur Klemmschraubenachse (49; 69; 89) verlaufend eine Anlagefläche (51; 71; 91) im Isolierkörper (2) vorgesehen ist, die beim Hochdrehen der Klemmschraube (44; 64; 84) im Anschlußteil (43; 63; 83) die Klemmscheibe (46; 66; 86) hinsichtlich des Öffnens für den einzuführenden elektrischen Leiter schrägstellend beaufschlagt, unddie Klemmscheibe (46; 66; 86) unterhalb des Rastnockens (50; 70; 90) durch eine Parallelführung (54; 74; 94) verkippsicher geführt ist.
- Anschlußklemme nach Anspruch 1, dadurch gekennzeichnet, daß die Anlagefläche (51; 71; 91) aus zwei symmetrisch zum Rastnocken (50; 70; 90) angeordneten Teilanlageflächen (31, 32) besteht.
- Anschlußklemme nach Anspruch 1, dadurch gekennzeichnet, daß die Anlagefläche (51; 71; 91) aus einer symmetrisch zum Rastnocken (50; 70; 90) angeordneten länglichen Anlagefläche besteht.
- Anschlußklemme nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Klemmscheibe (46; 66; 86) entlang einer ihrer Außenkanten (53; 73; 93) durch ein im Isolierkörper (2) gegenüber dem Rastnocken (50; 70; 90) als Parallelführung (54; 74; 94) ausgebildetes Flächenstück geführt ist.
- Anschlußklemme nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Parallelführung (54; 74; 94) abgestuft, insbesondere zweistufig ist, derart, daß sie entlang ihrer zur Klemmschraubenachse (49; 69; 89) parallel erstreckenden Längsausdehnung mit Annäherung zur Anlagefläche (51; 71; 91) näher zur Klemmschraubenachse (49; 69; 89) gelangt.
- Anschlußklemme nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Raststeg (48; 68; 88) eine im wesentlichen parallel zur Klemmschraubenachse (49; 69; 89) verlaufende länglichen Anformung im Isolierkörper (2) ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29703657U DE29703657U1 (de) | 1997-02-28 | 1997-02-28 | Anschlußklemme mit Schraubensicherung |
DE29703657U | 1997-02-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0862242A1 EP0862242A1 (de) | 1998-09-02 |
EP0862242B1 true EP0862242B1 (de) | 2000-07-19 |
Family
ID=8036741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98103065A Expired - Lifetime EP0862242B1 (de) | 1997-02-28 | 1998-02-21 | Anschlussklemme für Schraubensicherung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0862242B1 (de) |
AT (1) | ATE194885T1 (de) |
DE (2) | DE29703657U1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20012383A1 (it) * | 2001-11-12 | 2003-05-12 | Ge Power Controls Italia Spa | Dispositivo di guida e ritenzione di viti di morsetti di collegamentoper accessori di apparecchi elettrici |
DE102009024867B4 (de) * | 2009-06-09 | 2013-03-28 | Abb Ag | Installationsschaltgerät mit Klemmenabdeckteil |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2687517A (en) * | 1951-03-30 | 1954-08-24 | Pass & Seymour Inc | Wire terminal or connector |
DE900235C (de) * | 1951-12-23 | 1953-12-21 | Berker Geb | Anschlussklemme fuer elektrische Leitungen |
DE29603754U1 (de) * | 1996-02-29 | 1996-04-25 | Kloeckner Moeller Gmbh | Elektrisches Schaltgerät mit Klemmschraubensicherung |
-
1997
- 1997-02-28 DE DE29703657U patent/DE29703657U1/de not_active Expired - Lifetime
-
1998
- 1998-02-21 EP EP98103065A patent/EP0862242B1/de not_active Expired - Lifetime
- 1998-02-21 DE DE59800198T patent/DE59800198D1/de not_active Expired - Fee Related
- 1998-02-21 AT AT98103065T patent/ATE194885T1/de active
Also Published As
Publication number | Publication date |
---|---|
DE59800198D1 (de) | 2000-08-24 |
DE29703657U1 (de) | 1997-04-24 |
ATE194885T1 (de) | 2000-08-15 |
EP0862242A1 (de) | 1998-09-02 |
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