EP0013308A1 - Double-flat contact spring - Google Patents

Double-flat contact spring Download PDF

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Publication number
EP0013308A1
EP0013308A1 EP79104377A EP79104377A EP0013308A1 EP 0013308 A1 EP0013308 A1 EP 0013308A1 EP 79104377 A EP79104377 A EP 79104377A EP 79104377 A EP79104377 A EP 79104377A EP 0013308 A1 EP0013308 A1 EP 0013308A1
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EP
European Patent Office
Prior art keywords
spring
spring arm
base
arm base
web
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.)
Granted
Application number
EP79104377A
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German (de)
French (fr)
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EP0013308B1 (en
Inventor
Alfred Könnemann
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.)
Grote and Hartmann GmbH and Co KG
Original Assignee
Grote and Hartmann GmbH and Co KG
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 Grote and Hartmann GmbH and Co KG filed Critical Grote and Hartmann GmbH and Co KG
Publication of EP0013308A1 publication Critical patent/EP0013308A1/en
Application granted granted Critical
Publication of EP0013308B1 publication Critical patent/EP0013308B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section

Definitions

  • a double flat spring which is formed in one piece from a sheet metal stamped part and has a central, flat tube-like housing base part with a double spring arm pair adjoining it in the longitudinal direction and other claw part adjoining it in the longitudinal direction for connecting one electrical conductor and on the underside has a detent spring arm which is extended and extends rearward to the claw part.
  • this type of double flat spring is designed as an angular shape, with the housing shape of the base part in particular being to be retained.
  • the double flat spring according to the invention has the claw part 1 and the contact spring part 2, which are connected to one another via a base part 3.
  • the claw part 1 is constructed in a manner known per se and essentially preferably consists of a conductor claw 4 and an insulation claw 5.
  • the contact spring part 2 has two known, oppositely arranged spring arm pairs 6, 7, which are each connected to a spring arm base 8 or 9, the two spring arm bases 8, 9 being connected to one another via an outside web 10.
  • the web 10 is arranged in the board parallel to the longitudinal axis of the claw part 1 and with respect to this in the shaped state of the double flat spring represents a backbend of the spring arm base 8 to the spring arm base 9, such that the spring arm pair 6 is arranged above the spring arm pair 7 and itself this results in the shape of the contact spring part 2 at right angles to the claw part 1 to one side.
  • the base part 3 forms an abutment for the spring arm pair 6 or the spring base 8.
  • the base part 3 is designed cage-like and exists in the case of the embodiment. 1 to 4 from the base 12 connected to the spring arm base 9 via the connecting web 11 and the side walls 13 drawn up obliquely towards the front.
  • the side walls 13 go in the front.
  • the cage is formed by the bottom 12, the side walls 13, the lugs 14 and the web 15. It is useful if the support web 15 has a support edge 16 which abuts the front edge of a side wall 13.
  • FIGS. 5 to 8 shows an angled double flat spring with a locking arm.
  • the cage of the base part 3 is also designed somewhat differently than in the case of FIGS. 1 to 4.
  • the latching arm 17 adjoins the support web 15 and is angled upward.
  • a rolled-up abutment nose 14 a which is cut in relation to the spring arm pair 7, serves for support. It is the abutment for both the double flat spring and for the locking arm 17.
  • the support web 15 is partially cut in relation to the spring arm pair 6, which facilitates the shaping.
  • the side wall 13 a has a guide web 18 which is pulled upward in its extension and which can cooperate with guide elements in a housing (not shown).
  • the embodiment according to FIGS. 5 to 8 is the same as that according to FIGS. 1 to 4, which is expressed by the choice of the same numbers.

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  • Springs (AREA)
  • Contacts (AREA)

Abstract

1. Double leaf spring formed in one piece from a stamped sheet metal part and with a central base part (3), a claw part (1) adjoining thereat at one end in longitudinal direction and a contact spring part (2), adjoining thereat at the other end and with a double spring arm pair (6, 7) bent away at right angles to one side with respect to the claw part (2), wherein the contact spring part (2) displays spring arm pairs (6, 7), which are arranged lying one above and opposite the other and each tied to a respective spring arm base (8 or 9), and the spring arm bases are connected one with the other at the outside by a web (10), characterized thereby, that the base part (3) is shaped in the manner of a cage and forms a couter-bearing for a first spring arm base (8), for which it consists of a bottom (12) tied to the other spring arm base (9) and the side walls (13) preferably upstanding obliquely forward, and that the side walls (13) in the front end region pass over into counterbearing lugs (14), which are rolled inwards and laterally engage over a support web (15) tied to the first spring arm base (8).

Description

Aus der DE-7-r-S 24 55 140 ist eine Doppelflachfeder bekannt, welche einstucking aus einem Blechstanzteil gebildet ist und einen mittleren, als flachrohrartiges Gehäuse ausgebildeten Basisteil mit sich in Längsrichtung einendig daran anschließendem Doppelfederarmpaar und anderendig sich in Längsrichtung daran anschließenden Krallenteil zum Anschluß eines elektrischen Leiters sowie unterseitig einen herausgebcgenen, sich nach hinten auf das Krallenteil zu erstreckenden Rastfederarm besitzt. Insbesondere diese Art einer Dcppelflachfeder als Winkelform auszubilden ist Aufgabe der vorliegenden Erfindung, wobei insbesondere die Gehäuseform des Basisteils erhalten bleiben soll.From DE-7-rS 24 55 140 a double flat spring is known, which is formed in one piece from a sheet metal stamped part and has a central, flat tube-like housing base part with a double spring arm pair adjoining it in the longitudinal direction and other claw part adjoining it in the longitudinal direction for connecting one electrical conductor and on the underside has a detent spring arm which is extended and extends rearward to the claw part. In particular, it is the object of the present invention to design this type of double flat spring as an angular shape, with the housing shape of the base part in particular being to be retained.

Diese Aufgabe wird durch die Merkmale der Ansprüche 1 - 7 gelöst.This object is solved by the features of claims 1-7.

Anhand der Zeichnung wird die Erfindung näher erläutert. Es zeigen:

  • Fig. 1 die Platine einer Ausführungsform der gewinkelten Doppelflachfeder,
  • Fig. 2 eine Draufsicht auf die gewinkelte Doppelflachfeder nach Fig. 1,
  • Fig. 3 einen Schritt längs J-M in Fig. 2,
  • Fig. 4 einen Schritt längs G-H in Fig. 2,
  • Fig. 5 die Platine einer anderen Ausfvhrurgsform der gewinkelten Doppelflachfeder,
  • Fig. 6 eine Draufsicht auf die gewinkelte Doppelflachfeder nach Fig. 5,
  • Fig. 7 einen Schnitt längs J-M in Fig. 6,
  • Fig. 8 einen Schnitt längs G-H in Fig. 6.
The invention is explained in more detail with reference to the drawing. Show it:
  • 1 shows the circuit board of an embodiment of the angled double flat spring,
  • Fig. 2 is a plan view of the angled double Flat spring according to Fig. 1,
  • 3 shows a step along JM in FIG. 2,
  • 4 shows a step along GH in FIG. 2,
  • 5 shows the circuit board of another embodiment of the angled double flat spring,
  • 6 is a plan view of the angled double flat spring according to FIG. 5,
  • 7 shows a section along JM in FIG. 6,
  • 8 shows a section along GH in FIG. 6.

Die erfincungsgemäße Doppelflachfeder weist den Krallenteil 1 und den Kontaktfederteil 2 auf, die über einen Basisteil 3 miteinander in Verbindung stehen. Das krallenteil 1 ist in an sich bekannter Weise aufgebaut und besteht im wesentlichen vorzugsweise aus einer Leiterkralle 4 und einer Isolationskralle 5.The double flat spring according to the invention has the claw part 1 and the contact spring part 2, which are connected to one another via a base part 3. The claw part 1 is constructed in a manner known per se and essentially preferably consists of a conductor claw 4 and an insulation claw 5.

Der Kontaktfederteil 2 weist zwei an sich bekannte, sich gegenüberliegend angeordnete Federarmpaare 6, 7 auf, die jeweils an einer Federarmbasis 8 bzw. 9 angebunden sind, wobei die beiden Federarmbasen 8, 9 über einen außenseitigen Steg 10 miteinander in Verbindung stehen. Der Steg 10 ist in der Platine parallel zur Längsachse des Krallenteils 1 verlaufend angeordnet und stellt in bezug auf diesen im geformten Zustand der Doppelflachfeder eine Rückbiegung der Federarmbasis 8 zur Federarmbasis 9 dar, dergestalt, daß das Federarmpaar 6 über dem Federarmpaar 7 angeordnet ist und sich dadurch die zum Krallenteil 1 rechtwinklig zu einer Seite abgewinkelte Form des Kontaktfederteils 2 ergibt.The contact spring part 2 has two known, oppositely arranged spring arm pairs 6, 7, which are each connected to a spring arm base 8 or 9, the two spring arm bases 8, 9 being connected to one another via an outside web 10. The web 10 is arranged in the board parallel to the longitudinal axis of the claw part 1 and with respect to this in the shaped state of the double flat spring represents a backbend of the spring arm base 8 to the spring arm base 9, such that the spring arm pair 6 is arranged above the spring arm pair 7 and itself this results in the shape of the contact spring part 2 at right angles to the claw part 1 to one side.

Nach einer besonderen Ausführungsform der Erfindung bildet das Basisteil 3 ein Widerlager für das Federarmpaar 6 bzw. die Federamtasis 8. Zu diesem Zweck ist das Basisteil 3 käfigartig ausgeführt und besteht im Falle der Ausführungsfcrr. geräß Fig. 1 bis 4 aus dem mit der Federarmbasis 9 über den Anbindungssteg 11 verbundenen Boden 12 und den nach vorn schräg hochgezogenen Seitenwänden 13. Die Seitenwände 13 gehen im vorderer. Bereich in die eingerollten Widerlagernasen 14 Über, die einen an die Federarmbasis 8 angebundenen Abstützsteg 15 übergreifen und dadurch das Aufbiegen des Kontaktfederteils 2 bei Belastung der Federarme abstützen. Insofern wird der Käfig durch den Boden 12, die Seitenwände 13, die Nasen 14 und den Steg 15 gebildet. Zweckmäßig ist, wenn der Abstützsteg 15 eine Auflagekante 16 aufweist, die gegen die Vorderkante einer Seitenwand 13 stößt. iAccording to a special embodiment of the invention, the base part 3 forms an abutment for the spring arm pair 6 or the spring base 8. For this purpose, the base part 3 is designed cage-like and exists in the case of the embodiment. 1 to 4 from the base 12 connected to the spring arm base 9 via the connecting web 11 and the side walls 13 drawn up obliquely towards the front. The side walls 13 go in the front. Area in the rolled abutment lugs 14, which overlap a support web 15 connected to the spring arm base 8 and thereby support the bending of the contact spring part 2 when the spring arms are loaded. In this respect, the cage is formed by the bottom 12, the side walls 13, the lugs 14 and the web 15. It is useful if the support web 15 has a support edge 16 which abuts the front edge of a side wall 13. i

Die Ausführungsform gemäß Fig. 5 bis 8 zeigt eine gewinkelte Dcppelflachfeder mit Rastarm. Der Käfig des Basisteils 3 ist außerdem etwas anders ausgeführt als im Falle der Fig. 1 bis 4. An den Abstützsteg 15 schließt sich der Rastarm 17 an, der nach oben abgewinkelt ist. Zur Abstützung dient in diesem Fall lediglich eine eingerollte, in bezug auf das Federarmpaar 7 eingeschnittene Widerlagernase 14 a. Sie ist das Widerlager sowohl für die Doppelflachfeder als auch für den Rastarm 17. Vorteilhaft ist in diesem Fall, daß der Abstützsteg 15 gegenüber dem Federarmpaar 6 teilweise eingeschnitten ist, was die Formgebung erleichtert. Ferner weist die Seitenwand 13 a einen in ihrer Verlängerung nach oben gezogenen Führungssteg 18 auf, der mit Führungselementen in einem Gehäuse zusammenwirken kann (nicht dargestellt). Im übrigen gleicht die Ausführungsform nach Fig. 5 bis 8 der gemäß Fig. 1 bis 4., was durch die Wahl der gleichen Ziffern zum Ausdruck kommt.The embodiment according to FIGS. 5 to 8 shows an angled double flat spring with a locking arm. The cage of the base part 3 is also designed somewhat differently than in the case of FIGS. 1 to 4. The latching arm 17 adjoins the support web 15 and is angled upward. In this case, only a rolled-up abutment nose 14 a, which is cut in relation to the spring arm pair 7, serves for support. It is the abutment for both the double flat spring and for the locking arm 17. It is advantageous in this case that the support web 15 is partially cut in relation to the spring arm pair 6, which facilitates the shaping. Furthermore, the side wall 13 a has a guide web 18 which is pulled upward in its extension and which can cooperate with guide elements in a housing (not shown). Otherwise, the embodiment according to FIGS. 5 to 8 is the same as that according to FIGS. 1 to 4, which is expressed by the choice of the same numbers.

Mit der Erfirdung ist es gelungen, eine besonders fornbeständige, kastenförmige Doppelflachfeder zu schaffen, bei der der Kontaktfederteil zum Krallenteil seitlich abgewinkelt angeordnet ist.With the invention it has been possible to create a particularly shape-resistant, box-shaped double flat spring, in which the contact spring part is arranged at an angle to the claw part.

Claims (7)

1. Einstückig aus einem Blechstanzteil gebildete Doppelflachfeder mit einem mittleren Basisteil, sich in Längsrichtung einendig daran anschließendem Krallenteil und sich anderendig anschließendem Kontaktfederteil mit einem Doppelfederarmpaar, dadurch gekennzeichnet, daß das Doppel federarmpaar in bezug auf den Krallenteil (1) rechtwinklig zu einer Seite abgewinkelt ist.1. One-piece formed from a sheet metal stamped part with a central flat part, a claw part adjoining it in the longitudinal direction and a contact spring part adjoining the other end with a pair of spring arms, characterized in that the pair of double arms is angled at right angles to one side with respect to the claw part (1) . 2. Doppelflachfeder nach Anspruch 1, dadurch gekennzeichnet, daß der Rontaktfederteil (2) zwei übereinander sich gegenüberliegend angeordnete Federarmpaare (6,7) aufweist, die jeweils an einer Federarmbasis (8 bzw. 9) angebunden sind, wobei die Federarmbasen außenseitig über einen Steg (9) miteinander verbunden sind.2. Double flat spring according to claim 1, characterized in that the contact spring part (2) has two mutually opposite spring arm pairs (6, 7), each of which is connected to a spring arm base (8 or 9), the spring arm bases on the outside via a web (9) are interconnected. 3. Doppelflachfeder nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß das Basisteil (3) käfigartig ausgebildet ist und ein Widerlager für die Federarmbasis (8) bildet, wobei es aus einem an die Federarmbasis (9) angebundenen Boden (12) und den vorzugsweise nach vorn schräg hochgezogenen Seitenwänden (13) besteht, die SeiTenwände (13) im vorderen Endbereich in die nach innen eingerollten Widerlagernasen (14) übergehen, die einen an die Federarmbasis (8) angebundenen Abstütasteg (15) seitlich übergreifen.3. Double flat spring according to claim 1 and / or 2, characterized in that the base part (3) is cage-like and forms an abutment for the spring arm base (8), wherein it from a to the spring arm base (9) connected bottom (12) and which is preferably drawn forward obliquely raised side walls (13), the Side walls (13) in the front end area merge into the inwardly rolled abutment lugs (14) which laterally overlap a support bar (15) connected to the spring arm base (8). 4. Doppelflachfeder nach Anspruch 3, dadurch gekennzeichnet, daß der Abstützsteg (15) eine Auflagekante (16) aufweist , die gegen die Vorderkante einer Seitenwand (13) stoßen kann.4. Double flat spring according to claim 3, characterized in that the support web (15) has a support edge (16) which can abut against the front edge of a side wall (13). 5. Doppelflachfeder nach Anspruch 1 und/oder 2, d a - durch gekennzeichnet, daß das Basisteil (3) käfigartig ausgebildet ist und ein Widerlager für die Federarmbasis (8) bildet, wobei es aus einem an die Federarmbasis (9) angebundenen Boden (12) und den vorzugsweise nach vorn schräg hochgezcgenen Seitenwänden (13,13a) besteht, die Seitenwand (13) im vorderen Endbereich in eine nach innen eingerollte, vorzugsweise in bezug auf das Federarmpaar (7) eingeschnittene Widerlagernase (14a) übergeht, die einen an die Federarmbasis (8) angebundenen Abstützsteg (15) seitlich übergreift, an den Abstützsteg (15) sich ein Rastarm (17) anschließt, der vorzugsweise nach oben abgewinkelt ist.5. Double flat spring according to claim 1 and / or 2, since - characterized in that the base part (3) is cage-like and forms an abutment for the spring arm base (8), wherein it from a to the spring arm base (9) connected bottom (12 ) and the side walls (13, 13a), which are preferably pulled up obliquely towards the front, the side wall (13) in the front end area into an abutment nose (14a) which is rolled inwards, preferably cut with respect to the pair of spring arms (7), which leads to the The spring arm base (8) laterally engages the supporting web (15), to which a locking arm (17) adjoins the supporting web (15), which is preferably angled upward. 6. Doppelflachfeder nach Anspruch 5, dadurch gekennzeichnet, daß der Abstützsteg (15) gegenüber dem Federarmpaar (6) teilweise eingeschnitten ist.6. Double flat spring according to claim 5, characterized in that the support web (15) relative to the pair of spring arms (6) is partially cut. 7. Doppelflachfeder nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die Seitenwand (13a) in Verlängerung nach oben einen Führungssteg (18) aufweist.7. Double flat spring according to claim 5 or 6, characterized in that the side wall (13a) has a guide web (18) in an extension upwards.
EP79104377A 1979-01-05 1979-11-08 Double-flat contact spring Expired EP0013308B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792900303 DE2900303A1 (en) 1979-01-05 1979-01-05 DOUBLE FLAT SPRING
DE2900303 1979-01-05

Publications (2)

Publication Number Publication Date
EP0013308A1 true EP0013308A1 (en) 1980-07-23
EP0013308B1 EP0013308B1 (en) 1983-11-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104377A Expired EP0013308B1 (en) 1979-01-05 1979-11-08 Double-flat contact spring

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EP (1) EP0013308B1 (en)
DE (1) DE2900303A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122780A1 (en) * 1983-04-18 1984-10-24 AMP INCORPORATED (a New Jersey corporation) Wire-slot type electrical terminal intended for mating with a terminal tab
US4527857A (en) * 1983-04-18 1985-07-09 Amp Incorporated Terminal for connecting a wire to a blade type terminal
GB2264007A (en) * 1992-01-28 1993-08-11 Mecanismos Aux Ind Socket contact terminal
FR2693041A1 (en) * 1992-06-26 1993-12-31 Proner Comatel Sa Electrical connector with clip and tongue - has female terminal connector with male tongue in plug-in cage with T=shape connector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247083A (en) * 1964-04-01 1966-04-19 Louis W Raymond Method of chromium electrodeposition
US3706960A (en) * 1970-03-28 1972-12-19 Holzer & Co Kg W Fork-shaped one-piece electrical spring contacts
DE2506064A1 (en) * 1974-02-14 1975-08-21 Amp Inc ELECTRICAL CONNECTING ELEMENT RELEASABLY CONNECTABLE WITH AN ELECTRIC CONTACT PIN
DE2418019A1 (en) * 1974-04-10 1975-10-30 Bosch Siemens Hausgeraete Plug connector for printed cct board - has two-layer stamped resilient contact strips in one piece with crimped terminals
US4060890A (en) * 1975-05-12 1977-12-06 Amp Incorporated Method of manufacturing an electrical harness

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1487571A (en) * 1974-01-26 1977-10-05 Amp Inc Electrical contact
DE2728423A1 (en) * 1977-06-24 1979-01-04 Grote & Hartmann SPRING LUG

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247083A (en) * 1964-04-01 1966-04-19 Louis W Raymond Method of chromium electrodeposition
US3706960A (en) * 1970-03-28 1972-12-19 Holzer & Co Kg W Fork-shaped one-piece electrical spring contacts
DE2506064A1 (en) * 1974-02-14 1975-08-21 Amp Inc ELECTRICAL CONNECTING ELEMENT RELEASABLY CONNECTABLE WITH AN ELECTRIC CONTACT PIN
DE2418019A1 (en) * 1974-04-10 1975-10-30 Bosch Siemens Hausgeraete Plug connector for printed cct board - has two-layer stamped resilient contact strips in one piece with crimped terminals
US4060890A (en) * 1975-05-12 1977-12-06 Amp Incorporated Method of manufacturing an electrical harness

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122780A1 (en) * 1983-04-18 1984-10-24 AMP INCORPORATED (a New Jersey corporation) Wire-slot type electrical terminal intended for mating with a terminal tab
US4527857A (en) * 1983-04-18 1985-07-09 Amp Incorporated Terminal for connecting a wire to a blade type terminal
GB2264007A (en) * 1992-01-28 1993-08-11 Mecanismos Aux Ind Socket contact terminal
FR2693041A1 (en) * 1992-06-26 1993-12-31 Proner Comatel Sa Electrical connector with clip and tongue - has female terminal connector with male tongue in plug-in cage with T=shape connector

Also Published As

Publication number Publication date
EP0013308B1 (en) 1983-11-23
DE2900303C2 (en) 1989-06-15
DE2900303A1 (en) 1980-07-17

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