EP1278268A2 - Klemmfeder - Google Patents
Klemmfeder Download PDFInfo
- Publication number
- EP1278268A2 EP1278268A2 EP02015751A EP02015751A EP1278268A2 EP 1278268 A2 EP1278268 A2 EP 1278268A2 EP 02015751 A EP02015751 A EP 02015751A EP 02015751 A EP02015751 A EP 02015751A EP 1278268 A2 EP1278268 A2 EP 1278268A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- leg
- auxiliary
- spring leg
- clamp
- 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.)
- Withdrawn
Links
- 239000004020 conductor Substances 0.000 description 16
- 238000009434 installation Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- H01R4/48—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
-
- 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
- H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring
Definitions
- the present invention relates to a clamping spring according to the preamble of Claim 1.
- Such clamping springs which are also referred to as “cage springs”, are used in screwless terminals, such as are known from EP-B-0 303 818.
- the present invention is therefore based on the object of a clamping spring for a spring clip so that even conductors with large conductor cross sections can be clamped in the spring. This task is through the Combination of features of claim 1 solved in an inventive manner.
- the invention is based on the fundamental consideration of the effective spring force the clamping spring to increase, so the result is a greater clamping force to be able to exercise on the leader.
- a clamping spring of the same size and the same bending stress a comparatively larger conductor cross-section can be clamped.
- this saves the size of the clamping spring.
- Clamping springs therefore have the inventive clamping spring not only one on a fixed leg spring-loaded spring leg, which for Clamping the conductor, but also an additional auxiliary spring leg, which is the sum of the spring forces exerted by the clamping spring increased, ideally almost doubled.
- the production proposed in claim 2 as a bent part, preferably a spring steel bent part from a single piece, is technically simple and therefore advantageous and helps to reduce production costs.
- the travel limiter proposed in claim 3 prevents overpressure the clamping spring during the connection process. This is relevant in terms of safety, because an overpressure of the clamping spring is unnoticed by the operator when making contact can stay. In this way, the contact between the conductor and Clamp spring initially seem to be made, but fail later without that the faulty contact can be recognized as a reason for failure from the outside.
- the invention takes advantage of the fact that in the known clamping springs the fixed leg and the spring leg encloses a spring interior, which in the final assembly state of the clamping spring is actually useless broke.
- This spring interior, which is actually uselessly lying idle is used according to the invention as an installation space for the auxiliary spring leg.
- the auxiliary spring leg can be easily accommodated while maintaining exactly the same installation space as for the clamping spring after State of the art.
- the spring leg on the one hand and the auxiliary spring leg on the other hand molded onto two different free ends of the fixed leg, see above that if one of the two spring legs fails, the other spring leg respectively can still fully maintain its functionality.
- Claims 6 and 7 relate to a first preferred embodiment of the invention with an auxiliary spring leg with a to the geometry of the clamping spring adapted geometry.
- Claims 8 and 9 relate to a further embodiment of the invention, which is regarded as expedient in particular with regard to its spring properties becomes.
- the clamping spring shown in Fig. 1 has a horizontal direction 1 Fixed leg 2 on.
- the fixed leg 2 opens into the bend 3 which the angular spring leg 4 is resiliently fixed.
- the spring leg 4 adjoining the bend 3 is somewhat L-shaped angled and to a certain extent is composed of a base part 5 and a connecting part 6 bent from the base part 5.
- the connecting part 6 is penetrated by the conductor insertion opening schematically indicated in FIG. 1 7th
- a bulge 9 is bent toward the spring leg 4.
- the bulge 9 closes on the auxiliary spring leg 10.
- the auxiliary spring leg 10 consists on the one hand of a clinging to the base part 5 of the spring leg 4 Auxiliary beam 11 and that between the auxiliary beam 11 and the bulge 9 arranged base auxiliary beams 12.
- the bulge 9 jumps in the vertical direction 8 in the direction of the spring leg 4 opposite the base auxiliary beam 12 and thus forms a travel limiter for the spring leg 4.
- the spring travel of the clamping spring is shown in FIG. 1 Embodiment limited by the fact that the spring leg 4 on the bulge 9 rests flush in the maximally compressed state. To this The bulge 9 prevents further compression of the spring leg 4 in the vertical direction 8.
- auxiliary spring leg 10 as it were, the base part 5 of the spring leg 4 and the fixed leg 2 duplicated to increase, preferably doubling the effective spring force of the Clamping spring.
- auxiliary spring leg 10 can be with the same deflection of the spring leg 4 and thus the same bending stress on the clamping spring, twice the spring force realize.
- the second exemplary embodiment shown in FIG. 2 also has a horizontal direction 1 running fixed leg 2. Also with regard to the spring leg 4, this exemplary embodiment in FIG. 2 is identical to that in FIG. 1 shown embodiment.
- the auxiliary spring leg 10 in the embodiment 2 is connected to the fixed leg 2 via one of the bend 3 in the horizontal direction 1 opposite turn 13. At the turn 13 connects to a cantilever 14, which in turn at its free end has a rounding 15. Rounding 15 is followed in the vertical direction 8 projecting extension 16.
- FIG. 2 shows the synopsis 2 on the one hand and FIG. 3 on the other. If the in 2 compression spring shown in a completely relaxed state, spring both the spring leg 4 and the auxiliary spring leg 10, so that the base part 5 of the spring leg 4 on the one hand and the spring bar 14 of the Auxiliary spring legs 10 on the other hand in an almost horizontal, in the horizontal direction 1 current position. It can be seen here that the point of contact always between the cantilever 14 and the spring leg 4 itself is located approximately in the area of the center of the base part 5 of the spring leg 4. With others Words, this point of contact cannot be in the area of a turn, for example the bend 3, hike.
- the extension 16 is effective as a travel limiter, in which he rests with his end face on the fixed leg 23 and so one further deflection of the spring leg 4 prevented in the vertical direction 8.
- the two exemplary embodiments therefore differ in that the Movement of the spring leg 4 and the auxiliary spring leg 10 in the embodiment 1 are parallel, while the directions of movement of the spring leg 4 and the auxiliary spring leg 10 in the case of FIGS. 2 and 3 shown embodiment are opposite.
Abstract
Description
- Fig. 1
- eine Seitenansicht eines Ausführungsbeispiels einer erfindungsmäßigen Klemmfeder,
- Fig. 2
- ein weiteres, von dem in Fig. 1 abweichendes Ausführungsbeispiel der erfindungsmäßigen Klemmfeder im entspannten Zustand und
- Fig. 3
- die in Fig. 2 dargestellte Klemmfeder in Seitenansicht in vollständig eingefedertem Zustand.
- 1
- Horizontalrichtung
- 2
- Festschenkel
- 3
- Ausbiegung
- 4
- Federschenkel
- 5
- Basisteil
- 6
- Anschlussteil
- 7
- Leitereinführungsöffnung
- 8
- Vertikalrichtung
- 9
- Ausbuchtung
- 10
- Hilfsfederschenkel
- 11
- Federhilfsbalken
- 12
- Basishilfsbalken
- 13
- Abbiegung
- 14
- Federbalken
- 15
- Abrundung
- 16
- Fortsatz
- 20
- Stromschiene
- 21
- Leiter
Claims (8)
- Klemmfeder für eine Federklemmemit einem Festschenkel (2) undmit einem am Festschenkel (2) federnd gelagerten, winkelförmigen Federschenkel (4)
einen am Festschenkel (2) federnd gelagerten, mit seiner Federkraft den Federschenkel (2) beaufschlagenden Hilfsfederschenkel (10), wobei die Klemmfeder aus einem Stück gebogen ist. - Klemmfeder nach Anspruch 1
gekennzeichnet durch
einen am Hilfsfederschenkel (10) angeformten Federwegbegrenzer. - Klemmfeder nach Anspruch 1 oder 2,
dadurch gekennzeichnet,dass der Festschenkel (2) und der Federschenkel (4) einen Federinnenraum umschließen unddass der Hilfsfederschenkel (10) im Federinnenraum angeordnet ist. - Klemmfeder nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass der Federschenkel (4) und der Hilfsfederschenkel (10) an den beiden einander abgewandten Enden des Festschenkels (2) angeformt sind. - Klemmfeder nach einem der Ansprüche 1 bis 4,
gekennzeichnet durch
einen im Wesentlichen V-förmigen Hilfsfederschenkel (10) mit einem sich skelettartig an einem Teilbereich des Federschenkels (2) anschmiegenden Federhilfsbalken (11) und einem am Festschenkel (2) gelagerten Basishilfsbalken (12). - Klemmfeder nach Anspruch 5,
gekennzeichnet durch
eine in Richtung auf den Federschenkel (4) ausgebogene Ausbuchtung (9) zwischen dem Festschenkel (2) und dem Basishilfsbalken (12) als Federwegbegrenzer. - Klemmfeder nach einem der Ansprüche 1 bis 4,
gekennzeichnet durch
einen mit seinem dem Festschenkel (2) abgewandten Freiende am Federschenkel (4) anliegenden, zum Federschenkel (4) sich gegenläufig bewegenden Hilfsfederschenkels (10). - Klemmfeder nach Anspruch 7,
gekennzeichnet durch
ein gleitführungsartiges am Federschenkel (4) anliegendes Freiende des Hilfsfederschenkels (10) mit einer Abrundung (15) derart, dass der abgebogene, den Fortsatz (16) der Abrundung (15) bildende Bereich des Freiendes als Federwegbegrenzer wirksam ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10135597A DE10135597B4 (de) | 2001-07-20 | 2001-07-20 | Klemmfeder |
DE10135597 | 2001-07-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1278268A2 true EP1278268A2 (de) | 2003-01-22 |
EP1278268A3 EP1278268A3 (de) | 2003-10-01 |
Family
ID=7692640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02015751A Withdrawn EP1278268A3 (de) | 2001-07-20 | 2002-07-13 | Klemmfeder |
Country Status (4)
Country | Link |
---|---|
US (1) | US6776670B2 (de) |
EP (1) | EP1278268A3 (de) |
CA (1) | CA2394204A1 (de) |
DE (2) | DE10135597B4 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007033097B4 (de) * | 2007-07-13 | 2019-01-24 | Wago Verwaltungsgesellschaft Mbh | Elektrische Klemme und Federkraftklemmenanschluss hierzu |
DE102011008028B4 (de) * | 2011-01-05 | 2012-09-27 | Fujitsu Technology Solutions Intellectual Property Gmbh | Federanordnung für ein aus einem Stahlblech geformtes Gehäuseteil, Computergehäuse und Herstellungsverfahren |
DE102015100968A1 (de) | 2015-01-23 | 2016-07-28 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zur Herstellung einer Kraftfahrzeugkarosserie in Mischbauweise |
TWM529310U (zh) * | 2016-03-11 | 2016-09-21 | Switchlab Inc | 導線聯接端子之接電頭限制器結構 |
DE102016111536A1 (de) * | 2016-06-23 | 2017-12-28 | Wago Verwaltungsgesellschaft Mbh | Kontakteinsatz einer Federkraftanschlussklemme sowie damit ausgebildete Federkraftanschlussklemme |
TWM550924U (zh) * | 2017-05-26 | 2017-10-21 | Switchlab Inc | 用於電聯接端子之金屬彈片結構 |
TWM550925U (zh) * | 2017-05-26 | 2017-10-21 | Switchlab Inc | 用於電聯接端子之金屬彈片保護結構 |
DE202018106242U1 (de) * | 2018-11-01 | 2020-02-14 | Wago Verwaltungsgesellschaft Mbh | Leiteranschlussklemme |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7609673U1 (de) * | 1976-03-29 | 1976-07-29 | Sorg Plastik, Karl Sorg, Kunststoffverarbeitung, 7073 Lorch | Verbindungsklemme zum schraubenlosen Anschließen oder Verbinden elektrischer Leiter |
US4026013A (en) * | 1976-03-17 | 1977-05-31 | Amp Incorporated | Method and structure for terminating fine wires |
DE3447135A1 (de) * | 1984-11-22 | 1986-05-22 | Zwicker & Hensel Elektronische Schalttechnik GmbH, 5962 Drolshagen | Schraubenlose anschluss- und verbindungsklemme fuer elektrische leitungen |
DE19646103C1 (de) * | 1996-11-08 | 1998-03-12 | Phoenix Contact Gmbh & Co | Federkraftklemme |
FR2815177A1 (fr) * | 2000-10-10 | 2002-04-12 | Entrelec Sa | Ressort de connexion et bloc de raccordement mettant en oeuvre un tel ressort |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU752568A1 (ru) * | 1978-07-03 | 1980-07-30 | Ордена Ленина, Ордена Трудового Красного Знамени Предприятие П/Я А-7160 | Зажим дл безвинтового подключени провода |
US4260415A (en) * | 1979-12-12 | 1981-04-07 | Allegheny Ludlum Steel Corporation | Decarburizing molten metal |
DE3130318A1 (de) * | 1981-07-31 | 1983-02-17 | Gebrüder Merten GmbH & Co KG, 5270 Gummersbach | Elektrisches installationsgeraet, insbesondere steckdose oder schalter mit schraubenlosen anschlussklemmen |
FR2566967B1 (fr) * | 1984-06-28 | 1989-04-07 | Pouyet Henri | Borne pour connexion de conducteur electrique par ressort de pressage |
DE3727091C1 (de) * | 1987-08-14 | 1989-02-02 | Wieland Elek Sche Ind Gmbh F | Schraubenlose Anschluss- und/oder Verbindungsklemme |
DE29514509U1 (de) * | 1995-09-09 | 1995-10-26 | Weidmueller Interface | Zugfederanschluß für elektrische Leiter |
DE19539931C1 (de) * | 1995-10-26 | 1997-03-27 | Hirschmann Richard Gmbh Co | Klemmkontakteinrichtung |
DE29608178U1 (de) * | 1996-05-06 | 1996-07-25 | Weidmueller Interface | Zugfederanschluß mit einsteckbarem Anschlagelement |
DE19715971C1 (de) * | 1997-04-17 | 1998-05-07 | Phoenix Contact Gmbh & Co | Zugfederklemme mit aus einem Federblatt gebogener Klemmfeder |
DE19741136C2 (de) * | 1997-09-12 | 2000-09-07 | Wago Verwaltungs Gmbh | Elektrische Anschluß- oder Verbindungsklemme |
DE19810310C5 (de) * | 1998-03-11 | 2004-11-25 | Phoenix Contact Gmbh & Co. Kg | Anschlußklemme für elektrische Leiter |
FR2795562B1 (fr) * | 1999-06-23 | 2001-08-03 | Entrelec Sa | Ressort, notamment ressort de connexion |
-
2001
- 2001-07-20 DE DE10135597A patent/DE10135597B4/de not_active Expired - Fee Related
- 2001-07-20 DE DE10164765A patent/DE10164765A1/de not_active Ceased
-
2002
- 2002-07-13 EP EP02015751A patent/EP1278268A3/de not_active Withdrawn
- 2002-07-19 CA CA002394204A patent/CA2394204A1/en not_active Abandoned
- 2002-07-22 US US10/200,421 patent/US6776670B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4026013A (en) * | 1976-03-17 | 1977-05-31 | Amp Incorporated | Method and structure for terminating fine wires |
DE7609673U1 (de) * | 1976-03-29 | 1976-07-29 | Sorg Plastik, Karl Sorg, Kunststoffverarbeitung, 7073 Lorch | Verbindungsklemme zum schraubenlosen Anschließen oder Verbinden elektrischer Leiter |
DE3447135A1 (de) * | 1984-11-22 | 1986-05-22 | Zwicker & Hensel Elektronische Schalttechnik GmbH, 5962 Drolshagen | Schraubenlose anschluss- und verbindungsklemme fuer elektrische leitungen |
DE19646103C1 (de) * | 1996-11-08 | 1998-03-12 | Phoenix Contact Gmbh & Co | Federkraftklemme |
FR2815177A1 (fr) * | 2000-10-10 | 2002-04-12 | Entrelec Sa | Ressort de connexion et bloc de raccordement mettant en oeuvre un tel ressort |
Also Published As
Publication number | Publication date |
---|---|
DE10164765A1 (de) | 2004-06-03 |
DE10135597A1 (de) | 2003-02-06 |
US6776670B2 (en) | 2004-08-17 |
US20030017754A1 (en) | 2003-01-23 |
DE10135597B4 (de) | 2008-01-10 |
CA2394204A1 (en) | 2003-01-20 |
EP1278268A3 (de) | 2003-10-01 |
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