EP0046042A1 - One-piece electrical push-in type connector - Google Patents
One-piece electrical push-in type connector Download PDFInfo
- Publication number
- EP0046042A1 EP0046042A1 EP81303527A EP81303527A EP0046042A1 EP 0046042 A1 EP0046042 A1 EP 0046042A1 EP 81303527 A EP81303527 A EP 81303527A EP 81303527 A EP81303527 A EP 81303527A EP 0046042 A1 EP0046042 A1 EP 0046042A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conductor
- push
- connector
- contact
- spring tongue
- 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- Withdrawn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 claims abstract description 87
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 230000001154 acute effect Effects 0.000 claims abstract description 9
- 210000002105 tongue Anatomy 0.000 claims description 69
- 238000005452 bending Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 4
- 229910000952 Be alloy Inorganic materials 0.000 claims description 2
- 229910001369 Brass Inorganic materials 0.000 claims description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010951 brass Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 7
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000007704 transition Effects 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
-
- 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
- H01R4/4819—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 the spring shape allowing insertion of the conductor end when the spring is unbiased
- H01R4/4821—Single-blade spring
-
- 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
- H01R4/4846—Busbar details
- H01R4/4848—Busbar integrally formed with the spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
-
- 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
- H01R4/22—End caps, i.e. of insulating or conductive material for covering or maintaining connections between wires entering the cap from the same 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
- H01R4/48185—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
- H01R4/4819—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 the spring shape allowing insertion of the conductor end when the spring is unbiased
- H01R4/4823—Multiblade spring
-
- 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
- H01R4/4846—Busbar details
- H01R4/485—Single busbar common to multiple springs
Definitions
- the invention relates to a one-piece electrical push-in type connector which is adapted to be manufactured from a unitary cut of sheet metal of uniform thickness and is particularly suited for general power supply currents.
- the connector comprises a plurality of push-in clamping locations where electrical conductors may be pushed-in in a predetermined direction as particularly determined by a housing receiving the connector, and safely contacted.
- Two opposing contact portions are provided at each push-in clamping location, of which the one contact portion is designed as a spring tongue which, with a conductor being inserted and viewed in the push-in direction, extends obliquely from its base portion towards the conductor and abuts the conductor at an acute pitch angle.
- push-in type connectors of the kind described which are to be used particularly for general alternating supply line current, for instance household supply current of 110 or 220 volts, do not always ensure a sufficient contact force and sufficiently low transition resistances for general power supply operation for a sufficient length of time under the varying load and environmental conditions encountered.
- most push-in connectors are formed of several parts wherein the contact portion is manufactured from a sufficiently thick and well-conducting material to provide the necessary conductance, and the spring tongue portion is formed from a thin and less well conducting spring material to maintain electrical contact with the contact portion.
- the spring tongues When meeting the first-mentioned requirement of good dimensional stability by selecting a sufficiently thick sheet material, the spring tongues are, unless they shall not be impracticably long, so stiff that they are permanently deformed upon the pushing-in of a conductor, so that a multiple use of the connector is impossible (USA Letters Patent No. 4,084,876).
- the unitary push-in connector When meeting the second-mentioned requirement for sufficiently large elastic deformability of selecting a correspondingly thin sheet material, the unitary push-in connector, has too little dimensional stability as a whole, and additional measures are necessary to back-up the contact forces. Examples of these additional measures include installation in an exactly surrounding and a sufficiently strong housing, reinforcing by integrally shaped holding webs which extend over other portions, or using additional rigid frame bodies (German publication No. 1,285,589). Measures of that kind require an additional expense in the manufacture, and a multipart construction.
- the present invention starts from the object to provide a push-in connector which can be manufactured in a simple manner from a one-piece cut of sheet metal of uniform thickness, which is suitable for multiple uses or conductor sizes, and which can be readily designed so that for loosening an inserted conductor, no manipulations are necessary at the push-in connector.
- the opposing contact portions extend from the closed frame surrounding the contact portions; thus, just the base portion of the spring tongue with which the spring tongue merges into the remaining part of the push-in connector, is supported with a high strength and dimensional stability.
- an advantageous further development of the invention is characterized in that the distance between the contact portions is dimensioned so that, within a predetermined range of conductor cross-sectional sizes, a pitch angle is obtained at which an inserted conductor can be withdrawn again by pulling and simultaneous turning without permanently deforming the connector.
- Multipart push-in connectors are described as having a sufficiently flat pitch of the spring tongue at the inserted connector, to permit the inserted conductor to be again withdrawn by pulling and simultaneous turning without causing bulging and permanent deformation of the spring tongue (German disclosure letter 2,317,040); however, that concept concerns embodiments in which the spring tongues are separate structural parts riveted or screwed to a thick and rigid plate which forms the other contact portion; this results in a very rigid anchoring of the base portions of the spring tongues over a large area so that the spring tongues are resistive against bulging. With a one-piece push-in connector in which the spring tongues are simply portions of a piece of sheet metal of uniform thickness, a comparably rigid anchoring of the spring tongues did not appear feasible.
- the push-in connector In most cases and particularly if the push-in connector is to be designed only for a definite conductor cross-section or a narrowly limited range of conductor cross-sections, the range of the elastic deformability of the spring tongue will be sufficiently large to compensate for tolerances of the push-in direction and the conductor cross-section. Then, it is to the purpose to design the other contact portion as a support portion as strong as possible at a section of the inner border and thus arrive at a high total strength against the spring and contact forces applied; this embodiment therefore will be preferable in general. In the case of more rigid requirements with respect to the applicable range of conductor cross-sections, it will, however, be to the purpose to design both contact portions as spring tongues so that the elastic deformabilities of the two spring tongues are additive.
- the contact portions are located oppositely and adjacently already in the sheet metal cut so that the sheet metal cut and the conductor formed therefrom can be designed with very small dimensions and thus a high resistivity against undesirable deformation. This is made possible by the feature that the contact portions are limited by portions of one and the same closed-in-itself inner frame border.
- the shape and the dimensions of the frame can be selected at will within wide limits, depending on the particular requirements with respect to structure and strength. However, since portions located far outwards do not contribute much to the total strength of the push-in connector, it will generally be possible to obtain the essential advantages of the push-in connector according to the invention already with a relatively narrow frame, i.e. with small dimensions.
- Figs. 1 and 2 illustrate a particularly simple one-piece push-in connector 11 which consists of a unitary sheet metal contact element 12 of uniform thickness.
- a plurality, in this case four, push-in clamping locations are provided where electrical conductors may be pushed in and safely contacted.
- the push-in direction is determined by a housing 15, more precisely by push-in and guiding openings 16, 17, 18 and 19 provided therein for receiving the base conductors.
- a housing 15 more precisely by push-in and guiding openings 16, 17, 18 and 19 provided therein for receiving the base conductors.
- the push-in openings each have an entrance section 16a, the cross-section of which corresponds to that of the conductor 21 including the insulation 20.
- the conductor is freed from the insulation 20 so far that the condition illustrated in broken lines Fig. 2 will result upon insertion, in which the insulation 20 extends into the entrance section 18a. In this manner, complete safety covering is obtained.
- the one contact portion at each clamping location is designed as a spring tongue 23, 24, 25 and 26 which furnishes the necessary contact force.
- the other contact portion is formed by a common support portion 30 having a marginal portion 31 adjacent the free border of the support portion 30 which is bent to facilitate a uniform bending of the marginal portion which forms an axial support surface and a short current path between conductors in the connector.
- the contact support portion 30 has a strength and rigidity as high as possible.
- Fig. 2 illustrates in broken lines that as the spring tongue firmly abuts the conductor 21 under spring tension, and extends, as viewed in the push-in direction, obliquely towards the conductor 21, it engages the conductor at an acute pitch angle 32.
- the element is not as compact but when the push-in clamping or contact locations are formed by a single endless cut in the sheet metal and surrounded by a frame which is closed in itself, the base portions of the spring tongue are anchored so strongly that a range of practicable acute pitch angles can be readily found in which sufficiently high contact forces are produced and the conductor is securely held in place but yet can be again removed by pulling and turning without there being a danger that the spring tongue is bulged outwards and permanently deformed.
- the magnitude of the pitch angle 31 depends upon the distance between the areas of the contact portions designed for engagement at the conductor 21. That distance has to be dimensioned so that for a predetermined range of conductor cross-sections, a relatively small pitch angle 31 of e.g.
- the pitch angle 31 is selected so that, with the conductor materials used, the inserted conductor 21 can be again withdrawn by pulling oppositely to the push-in direction and simultaneous turning.
- the number of the push-in clamping locations limited by a common interior border depends upon the requirements with respect to contact force and current load in the particular case of application.
- the rigidity is somewhat smaller than with embodiments having only a single spring tongue per cutout.
- additional rigidifying measures can be applied.
- the marginal portion 31 adjacent to the free border of the support portion 30 is bent off.
- the marginal portion is separated by short cuts 33 and 34 at the ends of its length taken transverse of the spring tongues.
- the contact element 12 is further rigidified by bending lines 35, 36 and beads 37, 38.
- the beads are provided so that they may also serve as an installation aid; according to Fig. 2, the contact element 12 has its beads snapped into corresponding grooves of a housing 15. Of the housing, only the base portion 15 is illustrated; ; which is provided with the push-in openings 16, 17, 18, 19.
- the contact element 12 has a further bent portion to form an abutment 40 which is engaged by the end on a conductor 21 inserted in the connecter 11.
- a lid (not shown) may be snapped over the open end and have its border received in grooves 44 and 45.
- the lid 48 consists of a sufficiently yieldable material, e.g. polyethylene to permit insertion but may be rigid enough to serve as an abutment.
- the starting angle 41 of the spring tongues is obtained in that the spring tongues are bent out, by the starting angle 41, from a surrounding area of the contact element 12, in this case the central portion between the marginal portions bent off at lines 35 and 36.
- the tongues are then bent, upon insertion of the conductors 21 to the pitch angle 32.
- the described starting position of the spring tongue oblique with respect to the push-in direction 12, results in the further advantage that it can easily be achieved, by suitably selecting the starting angle 41, that the contact zones between the inserted conductor 21 and the contact portions (support portion 31 and the spring tongue 23) are disposed in a plane 50 oblique to the conductor 21 and the clamping forces are not as great as when both the support and tongue are inclined to the conductor 21.
- the conductor 21 is subjected to a bending force if a distance exists between the contact zones in the direction of the conductor (the push-in direction); such bending force normally is undesirable, at least already because it does not contribute to the contact force.
- a particularly suitable spring material for the contact element 12 is spring brass, particularly a copper-beryllium-alloy having, for instance, about 2 to 7% by weight beryllium. Also laminates of steel and non-ferrous metal are very suitable because they make possible, depending upon the composition selected, to meet even very different requirements in respect of the spring properties.
- the push-in connector may additionally comprise at least one connecting or contacting means of conventional design, for instance a screw connection, a soldering tag, and the like. Thereby, the push-in connector can be connected more easily to already present installations, or to an electricity supply line of larger cross-section.
- the electrical contact may be even improved, and its load capability increased, if in at least one contact portion (in the case illustrated, of the spring tongue and/or the support portion), a profile is provided, e.g. a recess or shaping, which is adapted to the cross-sectional shape of the conductor to be inserted.
- a profile is provided, e.g. a recess or shaping, which is adapted to the cross-sectional shape of the conductor to be inserted.
- the spring tongue 23 has such a recess 51 which in the case illustrated is adapted to the cross-sectional shape of the conductor 21.
- the recess may also be, for instance, a V-shaped notch or the like.
- a corresponding adjustment at the support portion of a push-in connector having spring tongues may increase support and contact.
- the support surface 31 may be provided with an arcuate profile to contact a greater amount of the conductor opposite the spring tongue.
- Figs. 3 and 4 illustrate an embodiment wherein a contact element 60 has three clamping locations each having a spring tongue 61, 62, 63.
- This push-in connector is bent off along a bending line 65 which extends substantially between the contact portions of the clamping locations, and thus is rigidified.
- the structure has a short current path between conductors along the bend line.
- a marginal portion 66 of the support portion 67 is separated by cuts 68, 69, and not also bent off.
- dashed lines it is indicated how the spring tongue 62 is lifted by a conductor 21 inserted in the direction of the arrow from the initial position at the starting angle 71 into the clamping position having the more acute pitch angle 72. Again, the conductor is directionally guided by a housing opening 75.
- a lid 81 is detachably secured to the housing 82 by a border fitting into grooves and by lugs 84, 85 which co-act holdingly with bent-off marginal portions 86, 87 of the contact element 60 and the bottom of the trough-like housing base portion 82.
- Figs. 5 and 6 illustrate an embodiment of a push-in connector 100 in which two rows of push-in clamping locations 101, 102, and 104, 105, respectively, are arranged on both sides of a bending line 106.
- the contact portions are arranged and designed with a mirror symmetry with respect to the bending line.
- the support portions have bent-off marginal sections.
- the contact element 110 is held in the base portion 111 of the houslng even without the co-operation of the lid 112.
- holes 114, 115 are provided in bent-off marginal sections 116, 117, the holes co-operating snappingly with projections on the inner side of the housing base portion 111.
- the bottom of the base portion 111 serves as an abutment for the inserted conductors.
- the lid 112 determines the push-in direction.
- the lid is provided with guiding push-in openings 119, 120, 121, 122.
- An inserted conductor 125 is illustrated in the push-in opening 119, which conductor lifts the associated spring tongue 126 off from the starting angle 107 into the pitch angle 127.
- Figs. 7 and 8 illustrate an embodiment of a push-in connector 150, having a contact element 151 in which, similar as according to Figs. 5 and 6, a central bending line 156 is provided; however, only two push-in clamping locations 157, 158 are provided.
- the lid 160 of the housing 161 again serves as an abutment for the inserted conductors 165.
- the contact element 151 has short bent-off marginal sections 166, 167, with which the contact element fits into recesses at the edge of the housing base portion 161; the lid 160 holds the contact element 151 in position, serves to guide conductors and thus determines the push-in direction 169.
- the spring tongues, 170, 171 are bent in the area of their free ends and have recesses there, which correspond to the cross-sectional shape of the conductors to be inserted.
- the recesses are designed as rectangular openings 172, 174 which have two transverse edges 175, 176 engaging the conductor 165. Thereby, it is prevented at an even greater certainty that an inserted conductor is bulged and permanently deformed upon its being pulled and turned out.
- Figs. 9 and 10 illustrate an embodiment in which both contact portions are designed as spring tongues.
- the push-in connector 180 illustrated has two clamping locations 181, 182 arranged side-by-side, each having a common interior frame border 184 and 185, respectively, in a common one-piece contact element 186.
- the contact portions are formed by two oppositely arranged spring tongues 187, 188 and 190 and 191, respectively.
- the clamping location 181 is illustrated with a conductor 195 inserted.
- the push-in connector is bent off about a central bending line 196 extending between the contact portions, in such a manner that the spring tongues are disposed in the starting position (without a conductor 195 being inserted) at a desired starting angle with respect to the push-in direction, indicated by the arrow, determined by a housing 197.
- the spring tongues are lifted off into the pitch angles.
- the spring tongues 187, 188, or 190 or 191, respectively are arranged symmetrically with respect to the central bending line 196 and with respect to the push-in direction (Fig.
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
A one-piece electrical push-in type connector manufactured from a unitary cut of sheet metal of uniform thickness for general power supply currents. The connector comprises a plurality of push-in contact locations where electrical conductors may be pushed-in in a predetermined direction as particularly determined by a housing receiving the connector, and safely contacted. Two opposing contact portions are provided at each push-in contact location, of which one contact portion is a spring tongue which, with a conductor being inserted, extends obliquely and abuts the conductor at an acute angle.
Description
- The invention relates to a one-piece electrical push-in type connector which is adapted to be manufactured from a unitary cut of sheet metal of uniform thickness and is particularly suited for general power supply currents. In one aspect, the connector comprises a plurality of push-in clamping locations where electrical conductors may be pushed-in in a predetermined direction as particularly determined by a housing receiving the connector, and safely contacted. Two opposing contact portions are provided at each push-in clamping location, of which the one contact portion is designed as a spring tongue which, with a conductor being inserted and viewed in the push-in direction, extends obliquely from its base portion towards the conductor and abuts the conductor at an acute pitch angle.
- One-piece push-in type connectors of the kind described which are to be used particularly for general alternating supply line current, for instance household supply current of 110 or 220 volts, do not always ensure a sufficient contact force and sufficiently low transition resistances for general power supply operation for a sufficient length of time under the varying load and environmental conditions encountered. In practice, therefore, most push-in connectors are formed of several parts wherein the contact portion is manufactured from a sufficiently thick and well-conducting material to provide the necessary conductance, and the spring tongue portion is formed from a thin and less well conducting spring material to maintain electrical contact with the contact portion. The manufacture of multipart push-in connectors of that kind is substantially more expensive than with one-piece connectors which can be made from a unitary cut of sheet metal of uniform thickness by stamping and bending. However, the extra expense was tolerated because it was believed that only in this way could the desired features be amalgamated satisfactorily.
- Insofar as one-piece push-in connectors for general supply current, for instance household power distribution of 110 or 220 volts alterating voltage, had become known, they represent unsatisfactory compromises between the requirement to keep the thickness of the sheet metal cut so large that there is a strength and dimensional stability present at the push-in clamping locations to maintain sufficient contact and clamping forces, and to keep the sheet metal thin enough that the spring tongues are elastically deformable within a range of deflection necessary for the function of the push-in connector, without facing the danger of premature spring fatigue or even permanent deformation. When meeting the first-mentioned requirement of good dimensional stability by selecting a sufficiently thick sheet material, the spring tongues are, unless they shall not be impracticably long, so stiff that they are permanently deformed upon the pushing-in of a conductor, so that a multiple use of the connector is impossible (USA Letters Patent No. 4,084,876). When meeting the second-mentioned requirement for sufficiently large elastic deformability of selecting a correspondingly thin sheet material, the unitary push-in connector, has too little dimensional stability as a whole, and additional measures are necessary to back-up the contact forces. Examples of these additional measures include installation in an exactly surrounding and a sufficiently strong housing, reinforcing by integrally shaped holding webs which extend over other portions, or using additional rigid frame bodies (German publication No. 1,285,589). Measures of that kind require an additional expense in the manufacture, and a multipart construction.
- Moreover, the known reusable one-piece push-in connectors (German publication No. 1,285,589) have the disadvantage that a conductor once clamped can be removed again only after lifting the spring tongue off. Without that manipulation, an effort to again withdraw the once pushed-in connector, will increase the angle between the spring tongue and the conductor and concurrently buckle up and permanently deform the spring tongue so that the connector will no longer be suitable for reuse.
- The present invention starts from the object to provide a push-in connector which can be manufactured in a simple manner from a one-piece cut of sheet metal of uniform thickness, which is suitable for multiple uses or conductor sizes, and which can be readily designed so that for loosening an inserted conductor, no manipulations are necessary at the push-in connector.
- In the push-in connector according to the present invention, the opposing contact portions extend from the closed frame surrounding the contact portions; thus, just the base portion of the spring tongue with which the spring tongue merges into the remaining part of the push-in connector, is supported with a high strength and dimensional stability. Therefore, the danger is greatly reduced that upon pulling at an inserted conductor, the spring tongue is buckled up and permanently deformed; thus, the resistivity against unintentional withdrawing is increased, and yet a configuration can be obtained by using sufficiently small pitch angles with which it is ensured with a high degree of safety that an inserted conductor can be.again withdrawn by pulling and simultaneous turning, without the danger existing to make thereby the push-in connector unsuited for a reuse because of a permanent deformation of the contact portions, particularly the spring tongue. Accordingly, an advantageous further development of the invention is characterized in that the distance between the contact portions is dimensioned so that, within a predetermined range of conductor cross-sectional sizes, a pitch angle is obtained at which an inserted conductor can be withdrawn again by pulling and simultaneous turning without permanently deforming the connector.
- Multipart push-in connectors are described as having a sufficiently flat pitch of the spring tongue at the inserted connector, to permit the inserted conductor to be again withdrawn by pulling and simultaneous turning without causing bulging and permanent deformation of the spring tongue (German disclosure letter 2,317,040); however, that concept concerns embodiments in which the spring tongues are separate structural parts riveted or screwed to a thick and rigid plate which forms the other contact portion; this results in a very rigid anchoring of the base portions of the spring tongues over a large area so that the spring tongues are resistive against bulging. With a one-piece push-in connector in which the spring tongues are simply portions of a piece of sheet metal of uniform thickness, a comparably rigid anchoring of the spring tongues did not appear feasible.
- In most cases and particularly if the push-in connector is to be designed only for a definite conductor cross-section or a narrowly limited range of conductor cross-sections, the range of the elastic deformability of the spring tongue will be sufficiently large to compensate for tolerances of the push-in direction and the conductor cross-section. Then, it is to the purpose to design the other contact portion as a support portion as strong as possible at a section of the inner border and thus arrive at a high total strength against the spring and contact forces applied; this embodiment therefore will be preferable in general. In the case of more rigid requirements with respect to the applicable range of conductor cross-sections, it will, however, be to the purpose to design both contact portions as spring tongues so that the elastic deformabilities of the two spring tongues are additive. It should be further mentioned that with the push-in connector according to the invention, the contact portions, more precisely the areas thereof which abut at the inserted conductor, are located oppositely and adjacently already in the sheet metal cut so that the sheet metal cut and the conductor formed therefrom can be designed with very small dimensions and thus a high resistivity against undesirable deformation. This is made possible by the feature that the contact portions are limited by portions of one and the same closed-in-itself inner frame border.
- It goes without saying that in other respects, the shape and the dimensions of the frame can be selected at will within wide limits, depending on the particular requirements with respect to structure and strength. However, since portions located far outwards do not contribute much to the total strength of the push-in connector, it will generally be possible to obtain the essential advantages of the push-in connector according to the invention already with a relatively narrow frame, i.e. with small dimensions.
- The invention will be described in the following by way of examples in connection with the drawings.
- Figure 1 is a diagrammatic (partly broken away view) of a push-in connector taken in the direction of the arrow A of Figure 2;
- Figure 2 is a diagrammatic sectional view according to the line 2-2 of Figure 1;
- Figure 3 is a diagrammatic plan view of a connector element showing another embodiment;
- Figure 4 is a diagrammatic sectional view of the connector element of Figure 3 with the housing parts added;
- Figure 5 is a transverse sectional view of another connector embodiment taken along the line 5-5 of Figure 6;
- Figure 6 is a diagrammatic sectional view along the line 6-6 of Figure 5;
- Figure 7 is a transverse diagrammatic sectional view of another embodiment taken along the line 7-7 of Figure 8;
- Figure 8 is a diagrammatic sectional view taken along the line 8-8 of Fig. 7;
- Figure 9 is a transverse diagrammatic sectional view of a further embodiment of the present invention taken along the line 9-9 of Fig. 10;
- Figure 10 is a diagrammatic sectional view taken along the line 10-10 of Fig. 9.
- In the drawings the connectors are illustrated diagrammatically; particularly, the thickness of the sheet metal cuts has been illustrated enlarged in the interest of clarity.
- Figs. 1 and 2 illustrate a particularly simple one-piece push-in
connector 11 which consists of a unitary sheetmetal contact element 12 of uniform thickness. In the push-in connector, a plurality, in this case four, push-in clamping locations are provided where electrical conductors may be pushed in and safely contacted. - The push-in direction is determined by a
housing 15, more precisely by push-in and guidingopenings insulation 20, if any, has been removed sufficiently far from theconductor 21 ends to permit the conductor to be inserted. The push-in openings each have anentrance section 16a, the cross-section of which corresponds to that of theconductor 21 including theinsulation 20. The conductor is freed from theinsulation 20 so far that the condition illustrated in broken lines Fig. 2 will result upon insertion, in which theinsulation 20 extends into the entrance section 18a. In this manner, complete safety covering is obtained. At each push-in clamping location the one contact portion at each clamping location is designed as aspring tongue common support portion 30 having amarginal portion 31 adjacent the free border of thesupport portion 30 which is bent to facilitate a uniform bending of the marginal portion which forms an axial support surface and a short current path between conductors in the connector. Thecontact support portion 30 has a strength and rigidity as high as possible. It is located opposite the free end of thespring tongues insertion openings conductor 21 and through an angle as will be described. Fig. 2 illustrates in broken lines that as the spring tongue firmly abuts theconductor 21 under spring tension, and extends, as viewed in the push-in direction, obliquely towards theconductor 21, it engages the conductor at an acute pitch angle 32. Due to the acute pitch angle, the effect of a barb is obtained and that with an effort to again withdraw the conductor once inserted, opposite to the push-in direction, the spring tongue digs into theconductor 21 so that it is forcibly entrained in the withdrawing direction. It will be appreciated that this retracting force may result in the upwards bulging and permanent deformation of the spring tongue. This deformation is less likely the more strongly the spring tongue is anchored at its base portion in the remainder of the push-inconnector 11, and the smaller the pitch angle chosen. However, a very small pitch angle can be attained only with a relatively large deflection of the spring tongue if the necessary tolerances are met. It is very difficult, if not even impossible, to achieve the necessary high contact forces in common with a large range of elastic deformability of the spring tongue, with the relatively short lengths of the spring tongues achievable with a single cut in a single piece of sheet metal. In the construction here described, multiple spring tongues and the support are all formed by a common cut in thecontact element 12. When separate cuts for each tongue and support are made as illustrated in Figs. 5 and 6 the element is not as compact but when the push-in clamping or contact locations are formed by a single endless cut in the sheet metal and surrounded by a frame which is closed in itself, the base portions of the spring tongue are anchored so strongly that a range of practicable acute pitch angles can be readily found in which sufficiently high contact forces are produced and the conductor is securely held in place but yet can be again removed by pulling and turning without there being a danger that the spring tongue is bulged outwards and permanently deformed. Essentially, the magnitude of thepitch angle 31 depends upon the distance between the areas of the contact portions designed for engagement at theconductor 21. That distance has to be dimensioned so that for a predetermined range of conductor cross-sections, a relativelysmall pitch angle 31 of e.g. 30 to 35 degrees is obtained upon insertion of theconductor 21 in the given push-in direction (relative to the push-in connector 11). The exact value depends upon the magnitude, the kind of material, and the thickness of the sheet metal cut, and upon the other constructional features of the push-in connector. For an embodiment once selected, the optimum pitch angle can be easily evaluated by a few simple experiments. Preferably, thepitch angle 31 is selected so that, with the conductor materials used, the insertedconductor 21 can be again withdrawn by pulling oppositely to the push-in direction and simultaneous turning. - In the connector of this invention, the number of the push-in clamping locations limited by a common interior border depends upon the requirements with respect to contact force and current load in the particular case of application. With the same structural features in other respects, the rigidity is somewhat smaller than with embodiments having only a single spring tongue per cutout. In any case, however, additional rigidifying measures can be applied. For instance, in this embodiment, Figs. 1 and 2, the
marginal portion 31 adjacent to the free border of thesupport portion 30 is bent off. In order to facilitate a uniform bending of such a marginal portion forming the short support surface, the marginal portion is separated byshort cuts - For further rigidifying, bending lines and/or beads and/or embossments may be provided. In this embodiment, the
contact element 12 is further rigidified by bendinglines beads contact element 12 has its beads snapped into corresponding grooves of ahousing 15. Of the housing, only thebase portion 15 is illustrated; ; which is provided with the push-inopenings contact element 12 has a further bent portion to form an abutment 40 which is engaged by the end on aconductor 21 inserted in theconnecter 11. A lid (not shown) may be snapped over the open end and have its border received ingrooves - In the embodiment according to Figs. 1 and 2 the starting angle 41 of the spring tongues is obtained in that the spring tongues are bent out, by the starting angle 41, from a surrounding area of the
contact element 12, in this case the central portion between the marginal portions bent off atlines conductors 21 to the pitch angle 32. The described starting position of the spring tongue oblique with respect to the push-indirection 12, results in the further advantage that it can easily be achieved, by suitably selecting the starting angle 41, that the contact zones between the insertedconductor 21 and the contact portions (support portion 31 and the spring tongue 23) are disposed in aplane 50 oblique to theconductor 21 and the clamping forces are not as great as when both the support and tongue are inclined to theconductor 21. In contrast thereto, theconductor 21 is subjected to a bending force if a distance exists between the contact zones in the direction of the conductor (the push-in direction); such bending force normally is undesirable, at least already because it does not contribute to the contact force. - A particularly suitable spring material for the
contact element 12 is spring brass, particularly a copper-beryllium-alloy having, for instance, about 2 to 7% by weight beryllium. Also laminates of steel and non-ferrous metal are very suitable because they make possible, depending upon the composition selected, to meet even very different requirements in respect of the spring properties. - The push-in connector may additionally comprise at least one connecting or contacting means of conventional design, for instance a screw connection, a soldering tag, and the like. Thereby, the push-in connector can be connected more easily to already present installations, or to an electricity supply line of larger cross-section.
- The electrical contact may be even improved, and its load capability increased, if in at least one contact portion (in the case illustrated, of the spring tongue and/or the support portion), a profile is provided, e.g. a recess or shaping, which is adapted to the cross-sectional shape of the conductor to be inserted. In the embodiment according to Figs. 1 and 2, the
spring tongue 23 has such arecess 51 which in the case illustrated is adapted to the cross-sectional shape of theconductor 21. However, the recess may also be, for instance, a V-shaped notch or the like. - A corresponding adjustment at the support portion of a push-in connector having spring tongues may increase support and contact. For example the
support surface 31 may be provided with an arcuate profile to contact a greater amount of the conductor opposite the spring tongue. - Figs. 3 and 4 illustrate an embodiment wherein a
contact element 60 has three clamping locations each having aspring tongue bending line 65 which extends substantially between the contact portions of the clamping locations, and thus is rigidified. The structure has a short current path between conductors along the bend line. - A
marginal portion 66 of thesupport portion 67 is separated bycuts spring tongue 62 is lifted by aconductor 21 inserted in the direction of the arrow from the initial position at the starting angle 71 into the clamping position having the moreacute pitch angle 72. Again, the conductor is directionally guided by ahousing opening 75. By the bending-off, it is achieved that the contact points of thesupport portion 67 and thespring tongue 62 at theconductor 21 illustrated in dashed lines, are disposed oppositely in a commonradial plane 80 of the conductor. Alid 81 is detachably secured to thehousing 82 by a border fitting into grooves and bylugs marginal portions contact element 60 and the bottom of the trough-likehousing base portion 82. - Figs. 5 and 6 illustrate an embodiment of a push-in
connector 100 in which two rows of push-inclamping locations bending line 106. Thereby, the advantages obtainable by the inclined arrangement, particularly with a view to the desired smallness of thepitch angle 107, can be combined, in a compact construction, with the advantages with respect to strength which are obtainable by the bending. In the embodiment illustrated, the contact portions are arranged and designed with a mirror symmetry with respect to the bending line. As may be seen from Fig. 6, the support portions have bent-off marginal sections. Furthermore, it is provided in this embodiment that thecontact element 110 is held in thebase portion 111 of the houslng even without the co-operation of thelid 112. To that end, holes 114, 115 are provided in bent-offmarginal sections housing base portion 111. The bottom of thebase portion 111 serves as an abutment for the inserted conductors. In this case, thelid 112 determines the push-in direction. The lid is provided with guiding push-inopenings conductor 125 is illustrated in the push-inopening 119, which conductor lifts the associatedspring tongue 126 off from the startingangle 107 into thepitch angle 127. - Figs. 7 and 8 illustrate an embodiment of a push-in
connector 150, having acontact element 151 in which, similar as according to Figs. 5 and 6, acentral bending line 156 is provided; however, only two push-inclamping locations lid 160 of thehousing 161 again serves as an abutment for the insertedconductors 165. Thecontact element 151 has short bent-offmarginal sections housing base portion 161; thelid 160 holds thecontact element 151 in position, serves to guide conductors and thus determines the push-indirection 169. The spring tongues, 170, 171 are bent in the area of their free ends and have recesses there, which correspond to the cross-sectional shape of the conductors to be inserted. As can be recognized in theexemplary spring tongue 170, the recesses are designed asrectangular openings 172, 174 which have twotransverse edges 175, 176 engaging theconductor 165. Thereby, it is prevented at an even greater certainty that an inserted conductor is bulged and permanently deformed upon its being pulled and turned out. - Figs. 9 and 10 illustrate an embodiment in which both contact portions are designed as spring tongues. The push-in
connector 180 illustrated has two clampinglocations interior frame border piece contact element 186. In each clamping location, the contact portions are formed by two oppositely arrangedspring tongues location 181 is illustrated with aconductor 195 inserted. The push-in connector is bent off about acentral bending line 196 extending between the contact portions, in such a manner that the spring tongues are disposed in the starting position (without aconductor 195 being inserted) at a desired starting angle with respect to the push-in direction, indicated by the arrow, determined by ahousing 197. By the insertedconductor 195, the spring tongues are lifted off into the pitch angles. In order to obtain a symmetrical force distribution, and engagement of the clamping forces in a commonradial plane 198 of theconductor 195, thespring tongues central bending line 196 and with respect to the push-in direction (Fig. 10), and identically designed, whereby they extend under substantially identical pitch angles and under oppositely equal inclined positions with respect to an insertedconductor 195. This is illustrated in Fig. 10. This structure affords a longer current path between conductors than in the other embodiments described but adequate where the improved clamping is desirable. - Having specifically described several embodiments of the present invention, it will be understood that other modifications of the shape, size or configuration of the contact elements may be made by those skilled in the art after reading this description without departing from the spirit or scope of the present invention as claimed in the appended claims.
Claims (16)
1. A one-piece electrical push-in type connector which is adapted to be manufactured from a one-piece cut of sheet metal of uniform thickness, and is particularly suited for general power supply current, the connector comprising a plurality of contact locations where electrical conductors may be pushed-in in a predetermined direction as particularly determined by a housing receiving the connector, and safely contacted, two opposed contact portions being provided at each contact location, of which the one contact portion is designed as a spring tongue which, with a conductor being inserted as viewed in the push-in direction, extends obliquely from its base portion towards the conductor and abuts the conductor at an acute pitch angle, characterized in that the two opposing contact portions are formed by a single endless cut within a piece of sheet metal to define in one piece cooperating contact portions which cooperate to grasp and electrically contact a conductor and resist removal.
2. A connector according to claim 1, characterized in that the distance between the contact portions is dimensioned so that, within a predetermined range of conductor cross-sectional sizes, an acute pitch angle is obtained to the axis of the conductor at which an inserted conductor can be withdrawn again by pulling and simultaneous turning, without causing permanent deformation of the contact elements.
3. A connector according to claim 2, characterized in that the contact portion other than said spring tongue is provided in said cut of sheet metal to form a support portion of a strength as high as possible opposite said spring tongue.
4. A connector according to claim 3, characterized in that a marginal portion of said support portion, adjacent to the free edge of said support portion is bent affording an increased support surface.
5. A connector according to claim 3 or 4, characterized in that the support portion, adjacent the free edge thereof, is formed with cut edges transverse to the remainder of the support portion which edges extend transverse to the spring tongue.
6. A connector according to claim 1 or 2, characterized in that both contact portions are designed as spring tongues.
7. A connector according to claim 6, characterized in that the spring tongues of one and the same push-in clamping location are arranged symmetrically with respect to the push-in direction.
8. A connector according to claim 6, characterized in that the spring tongues of one contact are identical and extend towards an inserted conductor under substantially the same pitch angles and in oppositely equal inclined positions.
9. A connector according to claim 1, characterized in that in at least one of the contact portions belonging to one and the same clamping location has a profile in the free edge adapted to the cross-sectional shape of the conductor to be inserted.
10. A connector in accordance with claim 1, characterized in that the contact areas between the inserted conductor and the contact portions are disposed substantially in a common radial plane of the conductor.
11. A connector in accordance with claim 1, characterized in that the contact element is bent-off along a bending line substantially extending between the contact portions of the push-in clamping location.
12. A connector in accordance with claim 11, characterized in that push-in clamping locations are arranged on both sides of a bending line through said contact element.
13. A connector in accordance with claim 1, which is arranged in a predetermined installation position in a housing determining the push-in direction, characterized in that in the predetermined installation position, the spring tongue is inclined with respect to the push-in direction by an acute starting angle when a conductor is not inserted, the starting angle being larger than the pitch angle.
14. A connector according to claim 1 or 2, characterized in that the spring tongue has a wider base portion than the spring tongue contact portion disposed near the face end.
15. A connector in accordance with claim 1, characterized in that it comprises additionally at least one connecting terminal means of conventional design.
16. A connector in accordance with claim 1, characterized in that it consists of one of spring brass, copper-beryllium alloy, or a laminate of steel and non-ferrous metal.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17506480A | 1980-08-04 | 1980-08-04 | |
US175064 | 1980-08-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0046042A1 true EP0046042A1 (en) | 1982-02-17 |
Family
ID=22638710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81303527A Withdrawn EP0046042A1 (en) | 1980-08-04 | 1981-07-31 | One-piece electrical push-in type connector |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0046042A1 (en) |
JP (1) | JPS57501152A (en) |
KR (1) | KR830006836A (en) |
BR (1) | BR8108730A (en) |
ES (1) | ES8204885A1 (en) |
WO (1) | WO1982000547A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0590756A2 (en) * | 1992-09-30 | 1994-04-06 | Telectronics N.V. | Self-locking implantable stimulating lead connector |
EP0634812A1 (en) * | 1993-07-15 | 1995-01-18 | Molex Incorporated | Wire connecting apparatus and terminal therefor |
EP0849826A2 (en) * | 1996-12-19 | 1998-06-24 | Wago Verwaltungsgesellschaft mbH | Terminal for electric conductor |
WO1999035713A1 (en) * | 1998-01-10 | 1999-07-15 | Mannesmann Vdo Ag | Electrical connector |
DE20313285U1 (en) * | 2003-08-27 | 2004-09-30 | Weco Wester, Ebbinghaus Gmbh & Co. Kg | Electrical connection terminal |
WO2009007475A1 (en) * | 2007-07-10 | 2009-01-15 | Antonio Moral Jimenez | Connection and coupling terminal device for electric cables |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2582450B1 (en) * | 1985-05-24 | 1987-08-14 | Jaeger | ELECTRICALLY INSULATING SUPPORT FOR ELECTRICAL CONTACT BLADES, MANUFACTURING METHOD, AND CONTACT BASE FOR IMPLEMENTING SAME |
DE102016111565B4 (en) * | 2016-06-23 | 2020-02-06 | HARTING Electronics GmbH | Electrical conductor connection element |
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US3652811A (en) * | 1970-08-17 | 1972-03-28 | Ark Les Switch Corp | Laminated locking slider multiple circuit pushbutton switch assembly with improved connectors for plug-in wires |
US3665373A (en) * | 1970-02-24 | 1972-05-23 | Dynamics Corp America | Push-in connector switch |
US3916149A (en) * | 1974-02-20 | 1975-10-28 | Electro Therm | Electric heater element connection assembly |
US3967873A (en) * | 1975-02-27 | 1976-07-06 | General Electric Company | Wire terminal electrical contact |
FR2414801A1 (en) * | 1978-01-16 | 1979-08-10 | Labinal | Multiwire connector for electrical cables - has spade form with one cable being secured by fold over edge of spade leg |
Family Cites Families (7)
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US3214722A (en) * | 1964-11-17 | 1965-10-26 | Amp Inc | Terminal assembly for heating panel or the like |
DE1285589B (en) * | 1967-05-19 | 1968-12-19 | Wago Kontakttechnik Gmbh | Screwless connector clamp |
US3585570A (en) * | 1969-03-10 | 1971-06-15 | John T Jans | Electrical terminal assembly |
DE2317040C3 (en) * | 1973-04-05 | 1980-01-31 | Wago-Kontakttechnik Gmbh, 4950 Minden | Plug-in terminal for connecting rigid electrical conductors |
US4084876A (en) * | 1975-10-15 | 1978-04-18 | Amp Incorporated | Electrical connector |
US4056299A (en) * | 1976-05-03 | 1977-11-01 | Burroughs Corporation | Electrical connector |
US4036545A (en) * | 1976-05-06 | 1977-07-19 | Molex Incorporated | Connector assembly |
-
1981
- 1981-07-27 BR BR8108730A patent/BR8108730A/en unknown
- 1981-07-27 WO PCT/US1981/001003 patent/WO1982000547A1/en unknown
- 1981-07-27 JP JP56502689A patent/JPS57501152A/ja active Pending
- 1981-07-31 EP EP81303527A patent/EP0046042A1/en not_active Withdrawn
- 1981-08-01 ES ES504494A patent/ES8204885A1/en not_active Expired
- 1981-08-04 KR KR1019810002834A patent/KR830006836A/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US3665373A (en) * | 1970-02-24 | 1972-05-23 | Dynamics Corp America | Push-in connector switch |
US3652811A (en) * | 1970-08-17 | 1972-03-28 | Ark Les Switch Corp | Laminated locking slider multiple circuit pushbutton switch assembly with improved connectors for plug-in wires |
US3916149A (en) * | 1974-02-20 | 1975-10-28 | Electro Therm | Electric heater element connection assembly |
US3967873A (en) * | 1975-02-27 | 1976-07-06 | General Electric Company | Wire terminal electrical contact |
FR2414801A1 (en) * | 1978-01-16 | 1979-08-10 | Labinal | Multiwire connector for electrical cables - has spade form with one cable being secured by fold over edge of spade leg |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0590756A2 (en) * | 1992-09-30 | 1994-04-06 | Telectronics N.V. | Self-locking implantable stimulating lead connector |
EP0590756A3 (en) * | 1992-09-30 | 1996-08-21 | Telectronics Nv | Self-locking implantable stimulating lead connector |
EP0634812A1 (en) * | 1993-07-15 | 1995-01-18 | Molex Incorporated | Wire connecting apparatus and terminal therefor |
EP0849826A2 (en) * | 1996-12-19 | 1998-06-24 | Wago Verwaltungsgesellschaft mbH | Terminal for electric conductor |
EP0849826A3 (en) * | 1996-12-19 | 2000-02-23 | Wago Verwaltungsgesellschaft mbH | Terminal for electric conductor |
WO1999035713A1 (en) * | 1998-01-10 | 1999-07-15 | Mannesmann Vdo Ag | Electrical connector |
DE20313285U1 (en) * | 2003-08-27 | 2004-09-30 | Weco Wester, Ebbinghaus Gmbh & Co. Kg | Electrical connection terminal |
DE102004040792B4 (en) * | 2003-08-27 | 2006-12-07 | Weco Wester, Ebbinghaus Gmbh & Co. Kg | Electrical connection terminal |
WO2009007475A1 (en) * | 2007-07-10 | 2009-01-15 | Antonio Moral Jimenez | Connection and coupling terminal device for electric cables |
Also Published As
Publication number | Publication date |
---|---|
ES504494A0 (en) | 1982-05-16 |
ES8204885A1 (en) | 1982-05-16 |
KR830006836A (en) | 1983-10-06 |
WO1982000547A1 (en) | 1982-02-18 |
JPS57501152A (en) | 1982-07-01 |
BR8108730A (en) | 1982-06-22 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Designated state(s): BE CH DE FR GB IT NL SE |
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17P | Request for examination filed |
Effective date: 19820812 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19840202 |
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Inventor name: WENDEROTH, BODO |