EP0433610B1 - Elément de contact électrique avec un ressort enrobant - Google Patents

Elément de contact électrique avec un ressort enrobant Download PDF

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Publication number
EP0433610B1
EP0433610B1 EP90120541A EP90120541A EP0433610B1 EP 0433610 B1 EP0433610 B1 EP 0433610B1 EP 90120541 A EP90120541 A EP 90120541A EP 90120541 A EP90120541 A EP 90120541A EP 0433610 B1 EP0433610 B1 EP 0433610B1
Authority
EP
European Patent Office
Prior art keywords
contact
spring
over
contact element
base part
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
EP90120541A
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German (de)
English (en)
Other versions
EP0433610A2 (fr
EP0433610A3 (en
Inventor
Bernd Zinn
Sbroslav Lolic
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 EP0433610A2 publication Critical patent/EP0433610A2/fr
Publication of EP0433610A3 publication Critical patent/EP0433610A3/de
Application granted granted Critical
Publication of EP0433610B1 publication Critical patent/EP0433610B1/fr
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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/18—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with the spring member surrounding the socket
    • 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
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

Definitions

  • the invention relates to a contact element according to the preamble of claim 1.
  • the invention has for its object to facilitate the assembly of the over-spring while ensuring a simple design of the spring and its attachment to the contact element. This object is achieved by the characterizing features of claim 1.
  • an over-spring which consists of two over-spring pieces opposite one another with respect to their longitudinal central axis or which is divided into two over-spring pieces in their longitudinal direction.
  • This not only makes it possible to implement substantially simpler cross-sectional shapes of the spring-over pieces, but it is also possible to attach or attach the spring-over pieces transversely to the longitudinal axis of the contact element, ie from the side, and to connect them to the contact base part. It is therefore not necessary to slide the spring over from the front.
  • the manufacture of the over-spring or the over-spring pieces themselves considerably simplified, but also their assembly on the contact element.
  • the feeding and mounting of the spring elements from the side requires shorter feed paths than is the case when pushing on from the front. That is why the spring clips can also be installed more quickly.
  • putting on and putting on from the side is also much easier than from the front.
  • a contact element designed according to the invention can therefore be used with produce much lower costs.
  • the contact element designated by 1 is a one-piece stamped / bent part made of sheet metal of thickness d with a crimp part 2, a transition region 3 extending forwards from it, and a part extending therefrom Contact base part 4 and a contact part extending therefrom with contact spring arms 5 which extend forward from the contact base part in a fork shape.
  • the crimp part 2 each has two U-shaped open rear insulation claws 7 and front wire claws 8.
  • the transition area 3 continues with a U-shaped cross section from the crimping part 2, the leg walls 9 of the transition area 3 being dimensioned much lower than the wire claws 8.
  • the contact base part 4 is a body of rectangular cross-section extending in the longitudinal direction of the contact element 1 with the Transverse edge lengths K, K1, which is formed by two wall parts, which are angled box-shaped around the longitudinal central axis 11 of the contact base part 4, which is also also the longitudinal central axis of the contact spring arms 5 and with their free longitudinal edges lying against each other on longitudinally extending abutting edges 12, which are in the
  • the longitudinal central axis 11 containing the vertical longitudinal center plane 13 of the contact base part 4 and the contact spring arms 5 extend in the cover wall 14 of the contact base part 4.
  • the side wall and the bottom wall of the contact base part 4 are denoted by 15 and 16.
  • Two pairs of contact spring arms 5a, 5b are provided, which are at a distance a from one another, and whose contact spring arms 5 are arranged one above the other.
  • the lower contact spring arms 5 start flat from the bottom wall 16, and the upper contact spring arms 5 start flat from the top wall 14, each upper contact spring arm 5 starting from a top wall part of the top wall 14 divided by the abutting edges 12.
  • each pair of contact spring arms 5a, 5b extend - seen in the side view - forward convergingly with straight flanks 5c, which at their front ends merge into indentations 17 which are rounded to form a roof, to which forwardly diverging arm legs 18 adjoin one another Form insertion funnel 19 for a contact pin, which is a flat pin (not shown) in the present embodiment.
  • transition area 3 connected to the left part of the contact base part 4 in FIG. 1, that is to say the transition region 3 which is U-shaped in cross-section with a bottom wall 3a and the low leg walls 9 in cross-section is both with the left side wall 15 and with parts of the ceiling wall parts 14a, 14b connected in the area of the left longitudinal edges of the contact base part 4.
  • the contact spring element 1 is equipped with an over-spring 22 which is divided in the longitudinal direction and thus consists of two over-spring pieces 22a, 22b.
  • the spring-over pieces 22a, 22b are U-shaped spring-over base parts in cross section, the free longitudinal edges of which have a small joint spacing from one another or form abutting edges.
  • the spring base part designated 22a is U-shaped on the top wall 14 and the spring base part designated 22b is U-shaped on the bottom wall 16, the side legs 23 of the spring base parts 22a, 22b overlap the side walls 15 of the contact base part 4.
  • the spring 22 has spring arms 24 to support the contact spring arms 5 from the outside.
  • the spring arms 24 extend opposite one another in a fork shape in a flat arrangement with respect to the contact spring arms 5, whereby they likewise converge towards the front and rest with their front ends in the region of the contact transverse plane 25 on the outer surfaces of the contact spring arms 5.
  • the spring arms 24 extend in one piece from the web walls 26 of the spring base parts 22a, 22b which bear against the top wall 14 or the bottom wall 16.
  • the spring arms 24 are slightly convexly curved, so that only the spring arm ends 27 abut the contact spring arms 5, specifically in the region of outer corners 28 arranged just before the transverse contact plane 25 on the contact spring arms 5, which are caused by the mirror-symmetrical indentations 17 of the Contact spring arms 24 are formed.
  • the width b of the spring arms 24 corresponds to the width b1 of the upper and lower contact spring arms 5 arranged next to one another, the width b relative to the associated transverse edge length K2 of the web walls 26 on both sides, i.e. is symmetrical, tapered. It is possible to divide the spring arms 24 into two spring arm parts arranged on both sides of the longitudinal median plane 13 by means of a central slot 29 running from front to back, which results in a spring arm pair for each contact spring arm pair 5a, 5b. In the embodiment shown in FIG. 1 with visible edges, the two upper and the two lower contact spring arms 5 are each supported by an over-spring arm 24.
  • each spring base part 22a1, 22b1 is held in the embodiment in FIGS. 1 to 4 in a form-fitting manner on the contact base part 4, specifically here by sheet metal tabs arranged on the spring base parts 22a1, 22b1, which are bent in and engage behind anchoring edges on the contact base part 4.
  • each spring base part 22a1, 22b1 On the left side of the contact element 1 in the plan view (see FIG. 2), each spring base part 22a1, 22b1 has a sheet metal tab 31 on each side, which is formed in the associated side leg 23 by cutting lines 31 extending from the free longitudinal edges and extending transversely thereto is. The cutting lines 31 extend up to shortly before the associated web wall 26.
  • the metal tabs 31 are bent in behind longitudinally extending anchoring edges 33, which are formed by the mutually opposite boundary edges of rectangular cutouts 34 in the side walls 15 of the contact base part 4.
  • the cutouts 34 are dimensioned so large in the transverse plane that the anchoring edges 33 lie in the plane of the inner surface of the associated top wall 14 or bottom wall 16.
  • the outer longitudinal edges of the contact base part 4 are chamfered.
  • the spring base parts are in the longitudinal direction of the contact element 1 22a1, 22b1 fixed to the contact base part in that the width c of the sheet metal tabs 31 is adapted to the associated width of the cutouts 34.
  • the anchoring edges 33 are formed by recesses 34a in the side walls 15 which are open to the front or to the rear, and the sheet metal tabs 31 are each formed only by a cutting line 32, since no incisions are required on the rear and front edges 35, 36.
  • the sheet metal tabs 31 and anchoring edges 33 can also be provided on both sides.
  • the spring 22 has on at least one side a latch arm 37 which is bent obliquely backwards from a side wall and serves to latch or secure the contact element 1 in a position inserted into a housing (not shown) in which the latch arm is a latching edge of the plug-in recess of the housing.
  • the latching arm 37 is formed on the side wall carrying it by a U-shaped incision or cut 37a, the resulting free-cut tongue being bent out in a flat arrangement with respect to this side wall.
  • latching arms 37 are provided on two opposite sides, which are formed on the web walls 26 of the spring base parts 22a1, 22b1.
  • the same parts differs from the above-described configuration by a different arrangement of the crimping part and the form-fitting holder for the spring parts or spring base parts 22a1, 22b1.
  • the crimp part 2 is arranged with the transition area rotated by 180 ° about the longitudinal central axis 11 so that the bottom wall 3a of the transition area 3 is connected to the right side wall 15 and the leg walls 9 are connected to the top wall 14 and the bottom wall 16.
  • two sheet-metal tabs 31 and anchoring edges 33 are provided on both sides in the embodiment according to FIG.
  • the sheet-metal tabs 31 being distributed over the existing length 1 of the side legs 23, that is to say both the front and the one rear sheet metal tabs 31 and anchoring edges 33 and cutouts 34 are at a distance from the rear edge 35 and the front edge 36, so that two cutouts 34 and two cutting lines 32 are provided to form this form-fitting holder.
  • the crimp part 2 with the transition region 3 is in a position corresponding to the embodiment according to FIGS. 5 to 8.
  • the form-fitting mounting of the spring-over parts is formed by latching arms 41 on the spring-over base parts 22a, 22b, which engage behind the latching edges 42 on the side walls 23 of the spring-over base parts 22a1, 22b1.
  • the locking arms 41 are formed by U-shaped incisions or cutouts 43 in the side legs 23 of the spring base parts 22a1, 22b1 in such an arrangement that they extend to the associated web wall 26.
  • the locking arms 41 are bent inwards, projecting into cutouts 44 in the associated side walls 15 of the contact base part 4.
  • each side leg 23 has two latching arms 42 with associated latching edges 42 lying one behind the other in the longitudinal direction.
  • the configuration according to FIGS. 13 to 16 differs in that the crimping part 2 and the transition area 3 are arranged differently and in that the spring-over pieces are fastened to the contact base part 14.
  • the crimping part 2 and the transition area 3 are 90 ° in comparison to the previously described configurations 13 that the crimping claws 7, 8 are open at the top, the bottom wall 3a and the side walls 9 of the transition region 3 being connected to the bottom wall 16 and the side walls 15 of the contact base part 4.
  • a permanent connection of the spring base parts 22a1, 22b1 to the contact base part 4 is provided by welding or soldering at predetermined connection points.
  • four connection points 45 are provided for each spring base part 22a1, 22b1 in the area of the existing corners between the web walls 26 and the bottom wall 16 or ceiling wall 14.
  • the crimping part 2 and the transition region 3 are in a position according to FIGS. 5 to 8 or 9 to 12.
  • the spring 22 is divided diagonally, whereby two L-shaped or angular in cross section Overspring pieces 22a, 22b result, the overspring base parts 22a1, 22b1 of which are each formed by a flat bottom or top leg 46,47 and a side leg 48,49 bent perpendicular thereto.
  • the spring arms 24 extend from the bottom leg 46 and the top leg 47 to the front in the manner described above.
  • the floor or ceiling leg 46.47 and Side legs 48, 49 each extend over the associated transverse edge length K, K1 of the contact base part 4, and they can also cover the free edges of the adjacent legs, as shown in FIG. 21.
  • the form-fitting holder for the spring base parts 22a1, 22b1 is formed by bending sheet metal tabs 31a which protrude from the free longitudinal edges of the floor or ceiling legs 46, 47 and the side legs 48, 49 and which are bent into cutouts 34b, which are associated therewith
  • the corner region of the contact base part 4 are located and their boundary edges facing the associated sheet metal tab 31a form anchoring edges 33a for the bent sheet tabs 31a.
  • each spring base part 22a1, 22b1 has a sheet metal tab 31a with its associated anchoring edge 33a on its leg in the front area and on its other leg in the rear area.
  • the metal tab 31a is preferably located on the longer leg (bottom leg 46, ceiling leg 47) in the front area, while the sheet tab 31a on the shorter side leg 48, 49 is located in the rear area.
  • the bending tabs 31a and cutouts 34b each associated with a spring-over piece 22a, 22b are thus diagonally opposite one another.
  • the latching arms 37 can be provided on one or on both spring base parts 22a1, 22b1, specifically both on one base leg or on both base legs, as a result of which one only, two opposite or even four opposite latch arms 37 can be realized.
  • the abutting edges 12 of the contact base part 4 are not in the top wall 14, but in a side wall 15, here the left side wall 15, and preferably in the middle of this side wall.
  • the crimp part 2 and the transition region 3 are arranged opposite the abutting edges 12. The transition area 3 is thus connected to the right side wall 15 and in the right longitudinal edge area to the top wall 14 and the bottom wall 16.
  • the contact part of the contact element 1 is not formed by contact spring arms, but by a flat pin 51, which extends in one piece from the bottom wall 16 of the contact base part 4, the bottom wall 16, as in the previously described exemplary embodiments , extends over the larger transverse edge length K.
  • the flat pin 51 is double-layered, the lower layer 52 constituting an extension of the bottom wall 16, while the upper layer 53 is formed by folding in lateral flaps 54 which are integrally connected to the longitudinal edges of the lower layer 52 and which are not shown in FIG folded position are indicated and lie in the folded position along centrally extending abutting edges 55 with their free longitudinal edges.
  • the flat pin 51 is pointed at the front by inclined surfaces from all sides.
  • the contact base part 4 and the two-part over-spring 22 correspond in their configurations and arrangements to the configurations according to FIGS. 1 to 4, sheet metal tabs 31 and anchoring edges 33 being provided on both sides in the arrangement according to FIG. 2, the former forming those in the anchoring edges 33 Cutouts 34 are bent.
  • the side legs 23 of the spring-over pieces 22a, 22b can be dimensioned so short that the metal tabs 31 project as projections from their longitudinal edges.
  • the latch arms 37 a difference is to be described, which consists in that the latch arm 37 starting from the web wall 26 of the lower spring base part 22b is dimensioned shorter than the opposite latch arm 37.
  • the lower layer 52 of the flat pin 51 is cranked down parallel to it shortly before its connection to the contact base part 4, namely by a dimension e, which corresponds to the thickness d1 of the associated spring base part 22b, so that the lower surface of the flat pin 51 and the lower surface the web wall 26 lie in one plane.
  • the contact element 1 and the two pieces of the spring 22 are each formed by a one-piece stamped / bent part made of sheet metal, the contact element 1 consisting of electrically highly conductive material, while the pieces of the spring 22 are preferably made of sheet steel.
  • the individual configurations and arrangements of the crimp parts 2, the contact base part 4, the spring springs 22 as well as their form-fitting holders and the contact parts can also be implemented in other combinations than described above.
  • Such possible combinations can be particularly advantageous with regard to the step-by-step manufacture of the contact elements in a stamping / bending tool, taking into account the successive cutting and deformation steps.
  • the above-described positions of the crimping part 2 are advantageous on the one hand for reasons of strength and on the other hand also for the sake of step-by-step manufacture in the stamping / bending tool, in particular when the stamping / bending tool is assigned a crimping tool and a feed device associated therewith for line ends to be crimped .
  • the two parts of the over-spring can also be easily and advantageously fed in from the side, ie transversely to the longitudinal central axis 11, preferably from above and below Put the contact base part 4 on or on and connect it.
  • This is also of great importance in a stamping / bending tool because there is more space above and below the feed-through level for the sheet metal strip for the arrangement of feed or assembly devices for feeding and mounting the parts of the spring from above and below.
  • the pieces of the spring 22 or the spring base parts 22a1, 22b1 can also be designed without spring arms 24, as shown in FIG. 14.

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Claims (32)

  1. Elément de contact électrique formant une seule pièce découpée et pliée dans une tôle avec un élément de connexion constitué par un élément de sertissage muni d'une partie de base tubulaire s'étendant vers l'avant, les bords d'attaque de la paroi de base tubulaire étant sensiblement longitudinaux, et avec un élément de contact s'étendant vers l'avant à partir de l'élément de base, un ressort superposé étant disposé sur la partie de base de l'élément de contact et fixé sur celle-ci,
    caractérisé par le fait que le ressort superposé (22) est constitué de deux parties, que chaque partie (22a, 22b) du ressort superposé comporte une partie de base (22a1, 22b1) et que les parties de base (22a1, 22b1) du ressort superposé sont fixées sur la partie de base (4) du contact en regard par rapport à l'axe médian longitudinal (11) de celle-ci.
  2. Elément de contact selon la revendication 1,
    caractérisé par le fait que les parties de base (22a1, 22b1) du ressort superposé sont adaptées à la forme de la face extérieure d'application de la partie de base (4) du contact.
  3. Elément de contact selon la revendication 1 ou 2,
    caractérisé par le fait que la partie de base (4) du contact présente une section transversale quandrangulaire, en particulier rectangulaire.
  4. Elément de contact selon l'une ou plusieurs des revendications 1 à 3,
    caractérisé par le fait que les parties de base (22a1, 22b1) du ressort superposé ont respectivement une section transversale en U.
  5. Elément de contact selon la revendication 4,
    caractérisé par le fait que les bras latéraux (23) des parties de base (22a1, 22b1) du ressort superposé sont formés par des portions courtes infléchies ou s'étendent sensiblement sur la moitié de la longueur du bord transversal correspondant (K1) de la partie de base (4) du contact.
  6. Elément de contact selon l'une ou plusieurs des revendications 1 à 3,
    caractérisé par le fait que les parties de base (22a1, 22b1) du ressort superposé ont une section transversale en forme d'angle ou de L et que les bras (46, 47, 48, 49) des parties de base (22a1, 22b1) s'étendent de préférence sur la longueur du bord transversal correspondant (K, K1) de la partie de base (4) du contact.
  7. Elément de contact selon l'une ou plusieurs des revendications 1 à 6,
    caractérisé par le fait que des bras élastiques de contact (5) sous forme de bandes s'étendent vers l'avant à partir de et venus d'une pièce avec des éléments de paroi en regard de la base (4) du contact, de préférence la paroi latérale du fond (16) et la paroi supérieure (14), les côtés (5c) de ces bras convergeant de préférence vers l'avant et étant appliqués l'un sur l'autre dans un plan de contact (25) s'étendant transversalement par rapport a l'axe médian longitudinal (11) des bras de contact (5) ou bien sont séparés par une certaine distance.
  8. Elément de contact selon la revendication 7,
    caractérisé par le fait qu'à partir des parties de base (22a1, 22b1) respectives du ressort superposé, au moins un bras de ressort superposé (24) en forme de bande s'étend vers l'avant, ce bras étant appliqué de préférence sur l'extérieur du bras de contact élastique (5) correspondant, de préférence au voisinage du point de contact (25).
  9. Elément de contact selon la revendication 8,
    caractérisé par le fait que les bras (24) du ressort superposé partent respectivement de la paroi d'entretoise (26) disposée sur le côté latéral de la partie de base (22a1, 22b1) du ressort superposé.
  10. Elément de contact selon l'une ou plusieurs des revendications 6 à 8,
    caractérisé par le fait que les bras (24) du ressort superposé partent des bras disposés en regard (46, 47) des parties de base (22a1, 22b1) du ressort superposé ayant la forme d'un angle ou d'un L.
  11. Elément de contact selon la revendication 10,
    caractérisé par le fait que les bras (24) partent d'un bras du fond et d'un bras supérieur (46, 47) des parties de base (22a1, 22b1) du ressort superposé ayant la forme d'un angle ou d'un L.
  12. Elément de contact selon l'une ou plusieurs des revendications 7 à 11,
    caractérisé par le fait que deux bras de contact élastiques (5), séparés par une distance (a) s'étendent vers l'avant depuis la paroi de fond et la paroi supérieure (16, 14) et forment deux paires de bras élastiques (5a, 5b) disposés de côté et d'autre d'un plan central longitudinal (13) perpendiculaire.
  13. Elément de contact selon la revendication 11 ou 12,
    caractérisé par le fait qu'à partir des parois d'entretoise latérales (26) des parties de base (22a1, 22b1) en U du ressort superposé ou bien à partir du bras latéral du fond et du bras latéral supérieur (46, 47) des parties de base (22a1, 22b1) en forme d'angle ou de L, un bras de ressort superposé (24) commun aux deux bras de ressort (5) associés du contact et ayant de préférence une largeur adéquate (b1) s'étend vers l'avant, ou bien que deux bras de ressort superposé (22), séparés par une distance (a) s'étendent vers l'avant, chacun de ces bras supportant depuis l'extérieur le bras (5) du ressort de contact correspondant et ayant de préférence la largeur de celui-ci.
  14. Elément de contact selon l'une ou plusieurs des revendications précédentes,
    caractérisé par le fait que les éléments (22a, 22b) du ressort superposé sont des pièces identiques ou inversées.
  15. Elément de contact selon l'une ou plusieurs des revendications précédentes,
    caractérisé par le fait que les parties de base (22a1, 22b1) du ressort superposé sont maintenues mécaniquement sur la partie de base (4) du contact.
  16. Elément de contact selon la revendication 15,
    caractérisé par le fait que les moyens de maintien mécanique sont constitués par des pattes en tôle (31, 31a) disposées sur les parties de base (22a1, 22b1) du ressort superposé, ces pattes étant insérées par pliage derrière des bords de verrouillage (33, 33a) de la partie de base (4) du contact, constitués de préférence par des évidements (34, 34a) ou des découpes formés sur la partie (4) du contact.
  17. Elément de contact selon la revendication 16,
    caractérisé par le fait que les pattes en tôle (31) sont constituées par des découpes (32) orientées transversalement par rapport aux bords longitudinaux libres des parties de base (22a1, 22b1) du ressort superposé, en particulier par rapport à leurs bras latéraux (23).
  18. Elément de contact selon la revendication 16 ou 17,
    caractérisé par le fait que les pattes en tôle (31, 31a) font saillie des bords longitudinaux libres des parties de base (22a1, 22b1) du ressort superposé, en particulier de leurs bras latéraux (23, 46, 47, 48, 49).
  19. Elément de contact selon l'une ou plusieurs des revendications 4 à 16,
    caractérisé par le fait que, sur les parois latérales de la partie de base ou sur les bras latéraux (23) des éléments (22a, 22b) du ressort superposé sont disposés des bras de verrouillage ou d'arrêt (41) formés par des incisions ou découpes en U (43), ces bras étant légèrement pliés vers l'extérieur ou l'intérieur et s'insérant derrière des bords d'arrêt (42) formés par des découpes (44) sur les bras latéraux (23) des parties de base (22a1, 22b1), respectivement sur les parois latérales (15) de la partie de base (4) du contact.
  20. Elément de contact selon l'une ou plusieurs des revendications 16 à 19,
    caractérisé par le fait qu'à chaque patte en tôle (31) ou bras de verrouillage (41) est associé un évidement (34, 34a) ou une découpe (44) ou bien à deux pattes en tôle (31) ou bras de verrouillage (41) disposés en regard, un évidement commun (34a) ou une découpe commune (34, 44).
  21. Elément de contact selon l'une ou plusieurs des revendications 16 à 20,
    caractérisé par le fait que les pattes en tôle (31a) font saillie à partir des bords libres des bras latéraux (46, 48, 47, 49) des parties de base (22a1, 22b1) ayant la forme d'un angle ou d'un L du ressort superposé et sont introduites par pliage dans des découpes (34b) disposées diagonalement en regard dans la partie de base (4) du contact, tout en s'insérant derrière des bords de verrouillage (33a) formés par les découpes (34b).
  22. Elément de contact selon la revendication 21,
    caractérisé par le fait que, dans le bras latéral (46, 48, 47, 49) de respectivement l'autre partie de base (22a1, 22b1) du ressort superposé, disposé au voisinage du bras qui porte la patte en tôle (31a), il est prévu un évidement (34c) pour la patte en tôle (31a) qui doit s'y insérer par pliage.
  23. Elément de contact selon l'une ou plusieurs des revendications précédentes,
    caractérisé par le fait que les parties de base (22a1, 22b1) du ressort superposé sont fixées sur la partie de base (4) du contact par soudure, de préférence en des points de soudure ou de brasage (45).
  24. Elément de contact selon la revendication 23,
    caractérisé par le fait que des deux côtés de la partie de base (4) du contact sont prévus quatre points de brasage ou de soudure (45) situés respectivement dans les régions angulaires.
  25. Elément de contact selon l'une ou plusieurs des revendications 1 à 24,
    caractérisé par le fait que la partie de base (4) du contact est formée par deux éléments de paroi de base infléchis l'un vers l'autre à la manière d'un tuyau, appliqués l'un sur l'autre le long de bords de jonction longitudinaux (12), ces bords (12) étant disposés sensiblement centralement dans la paroi supérieure (14) ou dans l'une des deux parois latérales (15), de préférence dans la paroi latérale (15) se trouvant sur la gauche lorsqu'on regarde vers l'extrémité antérieure de l'élément de contact (1) (Figs. 4, 21).
  26. Elément de contact selon l'une ou plusieurs des revendications 1 à 25,
    caractérisé par le fait que l'élément de connexion est constitué par une pièce de sertissage (2) munie de griffes (7, 8) qui est reliée à la partie de base (4) du contact par une région de transition (3) ayant de préférence une section transversale en U.
  27. Elément de contact selon la revendication 26,
    caractérisé par le fait que la région de transition est attachée à la paroi du fond (16) de la partie de base (4) du contact, les griffes de sertissage (7, 8) étant ouvertes vers le haut.
  28. Elément de contact selon la revendication 26,
    caractérisé par le fait que la région de transition (3) est attachée à la paroi latérale de gauche ou de droite (15) de la partie de base (4) du contact, les griffes de sertissage (7, 8) ayant une position telle qu'elles soient en regard de l'axe médian longitudinal (11) de l'élément de contact (1).
  29. Elément de contact selon l'une ou plusieurs des revendications 26 à 28,
    caractérisé par le fait que les parois latérales (9) de la région de transition (3) sont attachées aux parois correspondantes (14, 15, 16) de la partie de base (4) du contact.
  30. Elément de contact selon l'une ou plusieurs des revendications 1 à 29,
    caractérisé par le fait que, sur la paroi d'entretoise (26) d'au moins une des parties de base (22a1, 22b1) du ressort superposé, et de préférence sur les deux parties (22a1, 22b1), il est prévu des languettes de verrouillage (37) constituées par des incisions ou des découpes en U (37a) et pliées obliquement vers l'arrière.
  31. Elément de contact selon au moins l'une des revendications 6 à 30,
    caractérisé par le fait que sur un des bras latéraux, sur deux bras latéraux disposés de préférence en regard ou sur tous les quatre bras latéraux (46, 48, 47, 49) des parties de base (22a1, 22b1) ayant la forme d'un angle ou d'un L du ressort superposé, il est prévu une languette d'arrêt (37) constituée par une incision ou une découpe en U (37a) et pliée obliquement vers l'arrière.
  32. Elément de contact selon l'une ou plusieurs des revendications précédentes,
    caractérisé par le fait que les éléments (22a, 22b) du ressort superposé sont en acier.
EP90120541A 1989-12-18 1990-10-26 Elément de contact électrique avec un ressort enrobant Expired - Lifetime EP0433610B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8914951U 1989-12-18
DE8914951U DE8914951U1 (fr) 1989-12-18 1989-12-18

Publications (3)

Publication Number Publication Date
EP0433610A2 EP0433610A2 (fr) 1991-06-26
EP0433610A3 EP0433610A3 (en) 1991-10-16
EP0433610B1 true EP0433610B1 (fr) 1994-03-30

Family

ID=6845650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90120541A Expired - Lifetime EP0433610B1 (fr) 1989-12-18 1990-10-26 Elément de contact électrique avec un ressort enrobant

Country Status (6)

Country Link
US (1) US5094636A (fr)
EP (1) EP0433610B1 (fr)
JP (1) JPH03261080A (fr)
DE (2) DE8914951U1 (fr)
ES (1) ES2026433T1 (fr)
ZA (1) ZA909503B (fr)

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Also Published As

Publication number Publication date
DE59005195D1 (de) 1994-05-05
DE8914951U1 (fr) 1991-04-18
EP0433610A2 (fr) 1991-06-26
EP0433610A3 (en) 1991-10-16
ZA909503B (en) 1991-11-27
ES2026433T1 (es) 1992-05-01
JPH03261080A (ja) 1991-11-20
US5094636A (en) 1992-03-10

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