EP2031704B1 - Device for manufacturing a connection to a flat cable without insulation displacement - Google Patents
Device for manufacturing a connection to a flat cable without insulation displacement Download PDFInfo
- Publication number
- EP2031704B1 EP2031704B1 EP08015559.1A EP08015559A EP2031704B1 EP 2031704 B1 EP2031704 B1 EP 2031704B1 EP 08015559 A EP08015559 A EP 08015559A EP 2031704 B1 EP2031704 B1 EP 2031704B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- tapping
- flat cable
- pressure plate
- blade
- 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.)
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/594—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures for shielded flat cable
-
- 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
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
- H01R4/2412—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by insulated cams or wedges
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/62933—Comprising exclusively pivoting lever
- H01R13/62938—Pivoting lever comprising own camming means
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/62933—Comprising exclusively pivoting lever
- H01R13/62955—Pivoting lever comprising supplementary/additional locking means
-
- 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
- H01R43/01—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting unstripped conductors to contact members having insulation cutting edges
-
- 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
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
- H01R43/24—Assembling by moulding on contact members
Definitions
- the present invention relates generally to terminal devices, and more particularly to an apparatus for stripping-free manufacture of a terminal to a flat cable having at least one shielded data line having one or more wires.
- connection devices with which a continuous flat cable without tearing of the wires and without removal of wire and cable insulation can be tapped, have been known for over 30 years.
- An early publication in this respect from the applicant's home is, for example, the German patent application DE-AS 2 206 187 , This publication was only about the tapping of power lines, so lines with unshielded wires. Tapped screws were used as tapping contacts.
- the connection was made by the connecting device with its housing - initially without the contact screws - placed on the cable and then the cable was also enclosed on the back of a housing plate. Finally, the tapping was done by the guided in the housing with internal threads contact screws were screwed into the flat cable. They penetrated with their tip first the outer insulation of the flat cable, then the respective core insulation, and finally penetrated with the tip in the head of each vein. This contacted the vein in question.
- the tapping takes place as in the above-mentioned DE-AS 2 206 187 by screwing in contact screws. So that the contact screws do not create short circuits between the contacted wire conductors and the shield, they are on the shaft with a layer made of insulating material.
- the contact elements have the basic shape of rotational bodies.
- Such flat contact elements are used - as far as visible - only the tapping unshielded cables.
- the publication EP 1 178 571 A2 ( Fig. 6 ) shows a connection device according to which the preamble of claim 1 has been formulated.
- the publication EP 1 134 841 A2 shows a connection device for individually shielded wires of flat cables, which is equipped with partially insulated contact pins.
- the contact pins pierce the wires completely, ie enter with their tip on one side of each vein and on the other side again.
- DE 102 01 495 A1 and US 2005/0064759 A1 concern connection devices for unshielded power cables.
- the object of the present invention (technical problem) is to provide a connection device of the type mentioned in the introduction which can be installed easily and safely.
- the invention relates to a device for stripping-free production of a connection to a flat cable having at least one shielded data line with one or more wires, according to claim 1.
- the device has for stripping penetration of shielding and insulation and for contacting a wire at least one tap contact.
- the tap contact is designed to be electrically conductive at its free end, and is equipped at its flank region with an insulation in order to avoid a short circuit between the wire to be contacted and the shield.
- the tap contact is arranged on a pressure plate, that the preparation of the connection by applying force to the pressure plate to the flat cable out and a concomitant penetration of the tap contact is made in the flat cable.
- the tap contact has a cutting edge which extends in the longitudinal direction of the flat cable or slightly inclined thereto. The tapping widened, viewed in cross-section perpendicular to the cutting edge.
- the pressure plate is for example mounted on one side in a joint, so that the impressions of the at least one tap contact by a pivoting movement of the pressure plate to the flat cable out.
- the tap contact is slidably disposed on the pressure plate to prevent relative movement between the tap contact and flat cable in the cable longitudinal direction when penetrating into the flat cable.
- Fig. 1 illustrates a connection device in the open state in a perspective view.
- the tapping contact at its free end on a cutting edge, which is parallel to the flat cable or slightly inclined to this.
- the shield - which is usually at least partially made of an elastic material, such as a metallized plastic film -
- the tap contact penetrates, it is stressed (ie in the normal voltage direction). The corresponding would apply, if one thought, the acute-angled sheet metal contact the EP 0 726 623 A1 in the flank area and to use for the contacting of shielded data wires.
- the cutting edge lies in a (imaginary) plane, which is spanned by the wire to be contacted and the penetration direction. This means that in embodiments with a slightly inclined cutting edge, the cutting edge and the wire to be contacted do not run approximately skewed, but lie together in one plane.
- the "slightly inclined" course of the cutting edge is therefore here understood to mean the angle of inclination of the cutting edge relative to the cable longitudinal direction which is less than or equal to 30 °, preferably less than or equal to 20 °, and particularly preferably less than or equal to 10 °.
- the cutting edge is in the form of a single line piece.
- the cutting edge may be composed of a plurality of differently inclined straight line sections. It is possible, for example, a cutting mold in the manner of a "V", which may be either on the top or rotated by 180 °. It is also possible to string several "V's" together to create a total serrated shape.
- the above angle specifications refer to the individual straight sections of the cutting edge; In fact, in the examples given, it is very flat "V".
- In some embodiments includes - as will be explained in more detail below - on the cutting edge on one or both sides of a more inclined insulating cutting edge.
- the cutting edge is not straight or piecewise straight, but has a curved shape, for example, the shape of a circular section or ellipse section or a portion of another basket arch shape (ie, a shape whose radius of curvature increases from the edges toward the center).
- the cutting edge continues continuously into the cutting edge; Both together then have, for example, the shape of a semicircle, a semi-ellipse or another basket arch shape.
- the cutting edge is not or only slightly inclined to the cable longitudinal direction.
- one also wants to draw the boundary to the more inclined cutting edge there is thus a not or slightly inclined cutting edge, which in its function corresponds to the above in connection with straight, not or little inclined cutting. Because of the parallelism or only slight inclination of this curved central region, namely, even with such curved tapping contacts, the shear effect described above occurs.
- a “relatively large radius of curvature” in this sense is, for example, when the radius of curvature of a tapping contact in the center is greater than or equal to half the extension of the tapping contact in the longitudinal direction (note: for a semicircular arc, the radius of curvature is uniformly equal to half the length of the tapping contact for example, in the case of an elliptical half arc with the major axis of the ellipse in the longitudinal direction, the radius of curvature in the middle, for example, is greater than half the extent of the longitudinal contact point of the tapping contact).
- a tip (eg the tip of the contact element 32 of FIG Fig. 14 of the DE 201 11 496 U1 ) is punctiform in the region of its extremum, and thus has no extension in the longitudinal direction, in the case of an imaginary ideal tip. In practice, a peak will be more or less rounded, but in order for it to still act as a peak, its radius of curvature will generally be far below the above values.
- this length is preferably greater than or equal to half the diameter of the conductor of the strand to be contacted, and particularly preferably greater than or equal to this diameter.
- the length of the cutting edge will usually not exceed 5 to 20 times the diameter of the conductor.
- the isolated flank area widens in the transverse plane.
- this broadening thus continues into the insulated flank region, for example at least up to the height of the shield (the latter based on the contacted state of the connecting device).
- the widening formation of the tap contact is not limited to just the electrically conductive contact area, but extends also into the isolated shaft area.
- the insulation is in each case only in the cylindrical region of the tapping contacts; it does not expand (one exception is only the one mentioned at the beginning) WO 2004/042872 A1 , which, however, is based on another principle of operation, namely the aforementioned drill effect).
- the electrically conductive contact area is not broadened in the transverse plane (ev. Apart from a sharpening of the blade); Here, the isolated flank area alone ensures this broadening.
- a stepless transition in some embodiments with a widening contact element between the electrically conductive free end (also called “contact end”) and the insulation, a stepless transition, so that the contact end and the insulation in terms of shaping form a unitary body.
- the broadening already begins in the electrically conductive contact region, thus following the cutting of the cable and wire insulation and the shield immediately spreading the cable in a continuous process, the -.
- the shield On the depth of the cable to be tapped in the the shield is located, starting from the metallically conductive contact end and continuing from the insulated edge.
- the not or only slightly inclined cutting edge includes a more inclined insulating cutting flank (in the case of two-sided connection: two insulating cutting flanks).
- the change in inclination between the cutting edge and the cutting edge occurs abruptly, ie in the manner of a bend (although this bend may or may not be at the point of transition from conductive to insulating material).
- the change in inclination between the cutting edge and the cutting edge is continuous, i. without kink.
- the entire blade (or the entire portion of the blade that enters the conductor of the wire to be contacted) is electrically conductive; only the flank is insulating .. But this is not absolutely necessary; In other embodiments, therefore, only part of the cutting edge (or only part of the part of the cutting edge penetrating into the conductor of the wire to be contacted) is designed to be electrically conductive, but the other part thereof is designed to be insulating.
- the cutting edge is eg partly made of insulating material, and eg only central portion of the cutting edge is made of conductive material.
- a curved cutting edge can be made of one piece of insulating plastic material into which an electrically conductive metal pin is inserted, which forms part of the cutting surface at the point penetrating the deepest in the flat cable.
- the tapping contact also has a widening shape in the longitudinal plane, ie the imaginary plane which is spanned by the cutting edge and the penetration direction.
- the insulation forms at its boundary in the longitudinal plane at least one cutting edge.
- an insulating cutting edge At the two ends of the elongated tap contact in the longitudinal plane in each case an insulating cutting edge.
- these insulating cutting edges are inclined to the cable longitudinal direction more than the cutting edge (eg, more than 30 °), due to the Schiffchenform in conjunction with this cut extension to a spreading of the shield, so that despite the greater inclination of the insulating cutting edges Shield not pulled inward, but pushed aside.
- the pressure plate as in the aforementioned WO 2005/057729 A1 , hinged on one side, so that the impressions of the tap contacts in the flat cable to be contacted by a pivoting movement of the pressure plate to the flat cable out.
- the definitions made concerning the angle course of the cutting edge now relate to the angular position of the cutting edge in the fully contacted state of the tapping contact.
- the definitions made about the angle of the cutting edge refer to the angular position that the cutting edge has when it penetrates the shielding.
- articulated pressure plate occurs during the pivoting movement for pressing the tap contacts on the proximal to the joint lying insulating cutting edge relative to the cable an additional component of movement in the direction of the joint (this depends on the position of the joint - said movement component occurs, for example when the hinge is above the contact end of the tapping contact).
- the "proximal cutting edge" is the cutting edge facing the joint.
- additional movement component is the following: When pressing a widening in the contact end to the shank tapping - only with a translational movement, ie without pivotal movement - would result at an obliquely outwardly extending cutting edge during the Eindgurrison a transverse to the Eindschreibraum directed movement component, solely due to the inclination of the cutting edge.
- a movement of movement would take place in the direction of the joint during a pivoting movement, even if the cutting edge does not run at an angle, solely because of the pivoting movement.
- this additional motion component adds to that from the resulting skew of the cutting edge, while at the distal cutting edge thereof it is to be subtracted.
- the proximal cutting edge has a smaller inclination in the longitudinal plane relative to the indentation direction of the tapping contact as the cutting edge distal to the articulation. This difference in inclination thus serves to compensate the said additional movement component. In some embodiments, this difference in inclination may even go so far that the proximal cutting edge is not inclined.
- the inventor has recognized another (other) measure of how to avoid pulling in the shield when contacting data lines without requiring the contact elements to be screwed in.
- This further measure is based on the recognition that in connection devices with articulated pressure plate, the above-mentioned additional movement component in the cable longitudinal direction for pulling the shield may be responsible, and solves this problem so that even the additional movement component by a displaceable arrangement of the bleeder contact to let occur.
- the tap contact would therefore lead to immobile mounting on the pressure plate to a movement component of the tap contact in cable longitudinal direction.
- the direction of this component of motion is such that the tapping contact would be displaced towards the hinge as it enters the flat cable.
- the tap contact is arranged displaceably on the pressure plate in some embodiments.
- the direction of displacement is such that the tap contact in the Penetration in the flat cable is moved relative to the pressure plate away from the joint. In order to achieve such a shift, the tap contact in the longitudinal direction of the pressure plate is displaceable.
- the displacement of the tap contact for example, by entrainment in the course of penetration: as soon as the free end of the blade engages the sheath of the flat cable, a relative displacement of the bleed contact to the flat cable is practically impossible (because of the intervention for this would require a relatively large force).
- the pivoting movement leads to a relative movement between the flat cable and the pressure plate in the longitudinal direction.
- the early determination of the tap contact on the flat cable causes the tap contact is taken from the cable, so in the course of further pivoting is moved relative to the pressure plate away from the joint.
- this is effectively automated by the displaceable tap contact in the pressure plate is subjected to force (eg spring loaded), such that it is in the end position of its displacement range before the penetration into the flat cable by the application of force (eg spring loading), which then in Course of penetration allows a shift of the tap contact to prevent movement relative to the flat cable in the cable longitudinal direction.
- force eg spring loaded
- the tap contact is acted upon by a spring to the proximal stop of its displacement region.
- the biasing force is on the one hand sufficiently large to move the still freely displaceable (ie not yet engaging in the cable) tap on the pressure plate to the proximal stop, but on the other hand is sufficiently small to entrainment of the tapping contact by the relative movement after engagement with the flat cable the cable to the pressure plate (otherwise the tap contact would cut the cable lengthwise).
- tapping contact is part of a slide displaceable in the pressure plate.
- the tap contact is one Produced metal molding, which is surrounded at least in the flank area of insulating material.
- the metal molding is produced, for example, by casting and stamping / pressing with possibly subsequent machining, for example for sharpening said cutting edge.
- the insulating flank region of the tapping contact is made integral with the pressure plate or carriage.
- the insulating pressure plate or the carriage then has, for example, a surface on its side oriented toward the flat cable which is substantially complementary to the outer contour of the flat cable but has wart-like or blade-like projections at the later tapping points. Through central holes in these projections, for example, the mentioned metal moldings are inserted in the production and secured back against falling out and contacted. As a result, the bleed contacts are easy to produce.
- suitable mating shaping of the metal moldings and the protrusions in the pressure plate or in the slide the abovementioned stepless transition between the contact end formed by the metal molding and the insulation formed by the protrusion can be achieved.
- the aforementioned one-piece production of the insulating flank regions of the tapping contacts with the pressure plate or the slide may be, for example, an impression in a common casting process (eg plastic injection molding).
- Fig. 1-5 Overall views of a connection device (embodiment with fixed contacts)
- FIG. 1 and 3 these overall perspective views ( Fig. 1 and 3 ) and side views ( Fig. 2 and 4 ) a first embodiment of a connecting device 1 with fixed in the pressure plate tapping contacts in the open state ( Fig. 1 and 2 ) and when closed ( Fig. 3 and 4 ), as well as a front view of the opened state ( Fig. 5 ).
- the connecting device 1 is composed of a lower part 2 and an upper part 3, which can accommodate a tapped flat cable 4 between them.
- Upper and lower part 2, 3 are initially separate components that have complementary latching cams 19 (FIG. Fig. 3 ) can be assembled so that they are about a common pivot axis 18 ( Fig. 2 ) from the open state ( Fig. 1 . 2 and 5 ) in a closed Status ( Fig. 3 and 4 ) can be swiveled.
- the inner sides of the lower part 2 and the upper part 3 each form a pressure plate 5 and 6, respectively.
- the flat cable 4 ( Fig. 1 . 3 and 5 ) has an outer contour which has no symmetry with respect to a rotation of the flat cable 4 by 180 °.
- it has five power cores 7 running in the middle plane of the cable 4 (eg the three conductors of a three-phase system, the return conductor and a protective conductor);
- a shielded data line 8 In the same plane is also located on one side of the flat cable 4 is a shielded data line 8. It is, for example, a symmetrical pair line, which has two parallel non-twisted data wires 9 in the example shown.
- the data cores 9 are jointly surrounded by a shield 22, which is, for example, a conductive (eg metallized) plastic film.
- each power core 7 is located outside the flat cable 4 each have a longitudinal recess. However, no such depression is found between the data wires 9, since there the shield 22 is flat; This already eliminates a possible symmetry with respect to a rotation of the cable 4 by 180 °.
- a particularly deep constriction exists between the outermost energy supply core 7 and the subsequent data line; This also acts symmomentelockedd.
- the pressure plates 5, 6 have a complementary shape to this cable outer contour, so that the flat cable 4 can be inserted only in a specific orientation in the lower part 2, thus thus a "coding" of connecting device 1 and 4 cable is achieved.
- Fig. 5 provides a view from the front of the obliquely upward pressure plate 6, wherein the outer contour of the cable complementary inner contour is visible.
- a tapping contact 10 for the data cores 9 is provided in the pressure plate 6 of the upper part 3, which protrudes directed from the pressure plate 5 to the flat cable 4 out.
- the two tap contacts 10 are fixed (ie, non-rotatable and non-displaceable) arranged in the upper pressure plate 6.
- the two tapping contacts 10 are arranged offset in order to distribute the spreading of the data cores 9, which is accompanied by the impressions of the tapping contacts 10, to different locations, viewed in the cable longitudinal direction.
- two tap contacts 10 are shown in FIG Fig. 4 however, only one is shown - the reason is that in Fig. 3 through the left tapping 10 in Fig. 5 walks into Fig. 4 however, through the right tap 10 in Fig. 5 ).
- Tapping contacts 20 for the power conductors 7 shown are designed as non-insulated heavy current contacts, for example, in the manner of the WO 2005/057729 A1 known contacts, so that no further explanations follow. If “tapping contacts” are mentioned briefly below, this always refers to the tap contacts 10 for the data line 8.
- the upper part 3 is equipped with a two-sided lever 11, which is hinged to a lever axis 12 on the upper part 3 and this engages fork-shaped.
- a lever axis 12 on the upper part 3 On the side facing the flat cable 4 side of the lever, this has on both sides of the upper part 3 each have a fork 13 which engage in a complementary GabelausEnglishung 14 in the lower part 2 and there can engage under a fork abutment 15.
- this is equipped with a handle 16.
- connection device 1 The installation of a cable connection using the connection device 1 is hereby carried out in the following manner: First, the flat cable 4 is inserted into the (still separate) lower part. Then, lower part 2 and upper part 3 are joined together at their latching cams 19 to form their pivot axis 19. The lower and upper parts are then initially in an open position, for example, at an angle of 15 ° to each other, as in the Fig. 1 and 2 is shown. The operator now inserts the fork 13 into the fork recess 14, and pushes the lever 11 down. As a result - with force reduction due to the leverage - the upper part 3 is pressed onto the flat cable 4, so that the tap contacts 10 penetrate into the data line 8 and contact the data wires 9, and the connecting device 1 finally in the in the Fig.
- connection device 1 is thus already in its final state; a to be pushed over the handle 16 locking 17 prevents the connecting device 1 could return to its open position.
- the actual installation of a connection is thus - after inserting the cable and joining the device - without tools with only one hand movement feasible.
- the connecting device 1 has on the upper part 3 on a outlet socket 21, which is encoded, for example, according to one of the common industrial connector systems (eg from Wieland®, Wago® or Ensto®).
- the data line 8 is, for example, an EIB, LON or CAN bus.
- the connection device 1 may be, for example, a so-called actuator, that is to say a device which branches off with one or more switches which can be actuated by the control signal for the output socket 21 which is branched off Starkstromadern is equipped.
- the control signals for switching on and off come as signals, for example, according to the EIB, LON or CAN standard on the data line 8.
- connection device 1 is designed as a sensor device, and for this purpose, for example, in the upper part 3 with a suitable sensor (eg temperature sensor) equipped.
- the signals of this sensor can be transmitted via the data line 8, for example, to a building management center.
- Fig. 6 shows a section along the line II-II of Fig. 5 , ie along the cable direction; shows Fig. 6 the data line 8 containing part of the flat cable 4 in not yet contacted state; ie the tap contacts 10 are still outside of the flat cable.
- Fig. 7 shows a similar sectional view, but in the contacted state, ie the tap contact 10 shown has penetrated into data line 8 and contacts the conductor 23 of the data wire.
- Fig. 8 shows a detailed view of the tap contacts 10 and the cut flat cable 4 from the front.
- the 6 and 7 So show a section in the longitudinal direction, while the Fig. 8 shows a section in the transverse direction.
- each conductor 23 is surrounded in each case with its own circular in cross-section core insulation, wherein the two cores thus formed are then embedded in an intermediate sheath, the outer contour of the conductor insulation 24 of Fig. 8 equivalent.
- the shield 22 is arranged to the rectangular insulation 24 (or possibly the correspondingly shaped intermediate jacket).
- the shield 22 is enveloped by a cable sheath 25, which integrally forms the sheath of the entire flat cable 4 (thus also the high-voltage cores 7).
- the tap contacts 10 are essentially composed of two parts, namely a metal molding 26 and an insulation 27.
- the metal molding 26 has an elongated, substantially composed of two cylindrical sections shaft 28 and a contact piece 29, which at the free end of the shaft 28 is formed.
- the contact piece 29 runs - in the transverse direction ( Fig. 8 ) - to the free end pointed, and thus forms a cutting edge 30.
- the cutting edge 30 on both sides in each case a highly inclined cutting edge 31, which is formed by insulating material.
- the cutting edge 30 extends in the embodiment of the Fig. 6 to 8 parallel to the direction of the conductor 23, ie parallel to the cable longitudinal direction.
- the cutting edge 30 lies in an imaginary plane which is spanned by the conductor 23 to be contacted and the direction of penetration. This means that - how to get in Fig. 8 can see - the cutting edge 30 in the open state of the connecting device is centrally above the conductor to be contacted 23, and penetrates the conductor 23 in the middle when penetrating into the flat cable 4.
- the insulations 27 of all the tap contacts 10 are made in one piece with the pressure plate 6 of the upper part 5, e.g. by injection molding of a suitable insulating plastic. After the injection molding and possibly drilling out of the insulation 27 is to complete a tapping contact 10, only the metal mold part 26 from the cable side to insert and back to secure against falling out.
- the insulation 27 surrounds the shaft 28 of the molded part 26 and thus forms an insulating edge of the tapping contact 10, leaving only the cutting edge 30 and the contact piece 29 leading to it uncovered, the extension of the latter in the direction of the shaft approximately equal to the diameter d.
- the contact piece 29 widens from the cutting edge 30 to the shaft 28. This widening continues steplessly into the insulation 27, so that the tapping contact 10 is cut in the transverse direction overall has a uniformly widening shape. This serves, as already stated above, the spreading of cable sheath 25, shielding 22 and core insulation 24 in the course of the tapping operation.
- the contact piece 29 in the embodiment of Fig. 6 to 8 essentially rectangular, thus has no broadening.
- the insulation 27 widens towards the pressure plate 6 out.
- the lateral, sharply inclined edges of the insulation 27, in longitudinal section ( 6 and 7 ) are formed as cutting edges 31.
- the function of the cutting edges 31 is to lengthen the cut initially produced by the cutting edge 30 in the longitudinal direction, while the tap contact 10 is deeper penetrates into the flat cable 4.
- the broadening of the tap contact 10 in section in the longitudinal direction asymmetric to the shaft axis; namely, the angle of inclination (relative to the shaft axis) of that cutting edge 31a, which faces the axis of rotation 18 (ie the proximal cutting edge), smaller than that of the other, facing away from the axis of rotation 18 cutting edge 31b (ie the distal cutting edge).
- These different cutting edge angles take into account that the proximal cutting edge 31 a experiences a movement component to the axis of rotation 18 when closing the connecting device 1, which originates from the position of the axis of rotation 18 above the pressure plate 6. Due to this asymmetry, the length of the two cutting edges 31 a, b ultimately generated cuts approximately the same.
- Fig. 9 shows cross sections of the tapping contact 10 perpendicular to the direction of the shaft, wherein the outer contours of the metal molding 26 (solid lines) and the insulation 27 (dashed lines) are shown in the manner of contour lines.
- the contour line at S1 shows a section at the height of the cutting edge 30, the contour line S2 shows a section through the contact piece 29, and the contour lines S3 and S4 show two sections through the isolated region of the tap contact 10.
- the closing process begins with the in Fig. 6 shown position.
- the cutting edge 30 successively cuts through the cable jacket 25, the Shield 22 and the core insulation 24 and finally penetrates into the conductor 23 a.
- the inclined cutting edges 31 a, b extend the cut, the cut length increases toward the outside of the cable. Due to the transversely widening shape of the tapping contact 10, the cut-open material is spread apart in the region of the cut, whereby the extent of the spreading also increases toward the outside of the cable. With the penetration of the tapping contact 10, a force is applied to the flat cable 4 for the pressure plate 5 due to the aforementioned spreading.
- This action leads to a permanent elastic deformation of the flat cable 4 such that the conductor 23 is displaced in the area of the tapping point to the lower pressure plate 5 ( Fig. 7 ).
- the displacement distance is for example about half of the conductor diameter d.
- the underlying layers of the cable 4 (core insulation 24 and jacket 25) are compressed accordingly.
- the extension of the tapping contact 4 from the pressure plate 6 (called "height") takes into account this displacement of the conductor 23.
- the height of the tapping contact is so large that the cutting edge 30 is approximately at the bottom of the conductor 23 and the insulation 27th begins approximately at the top of the conductor 23.
- the distance of the cutting edge 30 from the upper pressure plate 6 would be approximately half the cable diameter plus half the conductor diameter, and the insulation 27 would start at approximately half the cable diameter minus half the conductor diameter.
- the height of the tap contact 10 is greater, and indeed - with an assumed displacement of the conductor 23 by d / 2 - the blade 30 is now half the cable diameter plus the conductor diameter, while the beginning of the insulation 27 is half the cable diameter ,
- the cutting edge 30 runs parallel to the cable longitudinal direction, illustrate the 10 to 15 Alternative embodiments (the insulation 27 also present in these examples with possibly existing cutting edges is in the FIGS. 9-12 and 14 not drawn).
- the cutting edge 30 is inclined relative to the cable longitudinal direction 32 by an angle ⁇ . In the illustrated examples, the angle ⁇ is about 15 °.
- the cutting edge 30 is composed of two cutting portions 33, one of which is inclined by the angle ⁇ , and the other by the angle - ⁇ relative to the cable longitudinal direction 32.
- the cutting portions 33 are V-shaped; the contact piece 29 thus has a convex shape.
- the two cutting portions 33 are arranged in the manner of an inverted "V".
- the tap contact 10 thus has a concave shape.
- the cutting edge 30 is curved.
- the cutting edge 30 and the cutting edges 31 have, for example, a semicircular shape.
- the radius of curvature r of the cutting edge 30 in the example shown is equal to the extent e of the tapping contact 10 in the longitudinal direction.
- Fig. 13 also shows by way of example that the contact piece 29 of the metal molding 26 does not need to extend over the entire length with which the tap contact 10 penetrates into the conductor 23. Rather, extends in the embodiment of Fig. 13 (And corresponding may also apply to differently shaped tapping contacts) the contact piece only over a portion of this length, and thus also forms only part of the cutting edge 30.
- the remaining part of the cutting edge 30 and the subsequent cutting edges 31 are formed by the insulation 27.
- This one can, like Fig. 13 shows, integrally molded with the pressure plate 6 (or a below explained in more detail slide in the pressure plate).
- FIGS. 15 and 16 show a second embodiment of a connection device 1, wherein the tap contacts 10 are not fixedly arranged in the pressure plate 6, but in a longitudinally displaceable in the pressure plate 6 carriage 35th Die
- FIGS. 15 and 16 show the connection device 1 in the open or closed state, according to the FIGS. 2 and 4 ,
- tapping contact 10 is exemplified in FIG. 13
- this second embodiment with longitudinally displaceable tapping contact other contact forms can be used, which have been described above, for example, in connection with the first embodiment (with fixed contacts).
- the remaining description of details of the embodiments with fixed contacts applies equally to the embodiment of FIGS. 15 to 18 insofar as they are technically compatible with the now described in more detail contact arrangement in a carriage.
- the carriage 35 is displaceably mounted in a sliding guide provided in the pressure plate 6 in the longitudinal direction of the pressure plate 6.
- the carriage 35 is formed for example of plastic, namely z. B. integral with the insulation 27 of the tap contact 10 ( FIG. 13 ).
- the contact piece 29 is inserted from metal; it occurs at the free end of the cutting edge 30 to the surface of the tapping contact 10 (FIG. FIG. 13 ).
- the longitudinal direction of the pressure plate 6 (ie, the direction in which the tap contact 10 is slidable) coincides with the longitudinal direction of the flat cable 4.
- the two directions do not coincide exactly, but differ around the Tilt angle ⁇ of the connection device; However, in the projection of the pressure plate 6 on the flat cable 4, they also fall together in the open state.
- the carriage 35 is limited in its longitudinal movement by stops, by a proximal stop 36 and a distal stop 37.
- the maximum possible movement stroke between these two stops is in FIG. 15 represented and designated x 1 .
- the carriage 35 is spring loaded, so that it is in the open state of the connection device 1 in the in FIG. 15 illustrated initial position 38 is located. In fact, in this initial position 38 it bears against the proximal stop 36.
- FIGS. 17 and 18 illustrate with a plan view of the pressure plate 6 an exemplary realization of the spring loading of the carriage 35.
- the carriage 35 is equipped with a cutout 40, in which the carriage 35 is inserted.
- the longitudinal edges of the cutout 40 are encompassed by the carriage 35 and thus simultaneously form a longitudinal guide for this.
- a resilient tab 41 is integrally formed on the carriage 35 in one piece. This consists z. B., such as the carriage 35, made of insulating plastic material.
- the resilient tab 41 has in the unloaded state z. B. the form of a "V"; It can be elastically deformed into the shape of a "U", as in the FIGS. 17 and 18 is shown.
- a plurality of tap contacts 10 are arranged together on a carriage 35.
- a plurality of independently displaceable carriages are provided (eg, one carriage for each tap contact 10) in order to take into account different displacement paths ⁇ x, which will occur with relatively widely spaced bleed contacts (in the embodiments of FIGS. 15 to 18 with shared slides, the difference in displacement was still considered negligible).
- connection devices with which the stripping-free tapping of shielded data lines can be effected in a simple and (short-circuit) safe manner.
Landscapes
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Processing Of Terminals (AREA)
- Multi-Conductor Connections (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Description
Die vorliegende Erfindung bezieht sich allgemein auf Anschlussvorrichtungen, und spezieller auf eine Vorrichtung zur abisolierfreien Herstellung eines Anschlusses an ein Flachkabel, das wenigstens eine abgeschirmte Datenleitung mit einer oder mehreren Adern aufweist.The present invention relates generally to terminal devices, and more particularly to an apparatus for stripping-free manufacture of a terminal to a flat cable having at least one shielded data line having one or more wires.
Anschlussvorrichtungen, mit denen ein durchlaufendes Flachkabel ohne Auftrennung der Adern und ohne Entfernung von Ader- und Kabelisolierungen angezapft werden kann, sind seit über 30 Jahren bekannt. Eine frühe diesbezügliche Veröffentlichung aus dem Hause der Anmelderin ist beispielsweise die deutsche Auslegeschrift
Eine Weiterentwicklung dieser Grundform ist aus der
Im Laufe der weiteren Entwicklung reifte dann die Erkenntnis, dass das Hineindrehen von einzelnen Kontaktschrauben einen relativ hohen Installationsaufwand verursacht. Beispielsweise entwickelten die
Dem letztgenannten Problem ist auch die
Bei den bisher genannten Vorschlägen haben die Kontaktelemente die Grundform von Rotationskörpern. Daneben ist es auch bekannt, Kontaktelemente aus Blech herzustellen (z.B. durch Ausstanzen), siehe beispielsweise die
Eine Weiterentwicklung hinsichtlich des Eindrückens fest in einer Gehäuseplatte angeordneter Kontaktelemente findet sich in der
Die Druckschrift
Die Druckschrift
Die Druckschriften
Der vorliegenden Erfindung liegt als Aufgabe (technisches Problem) die Bereitstellung einer einfach und sicher zu installierenden Anschlussvorrichtung der eingangs genannten Art zugrunde.The object of the present invention (technical problem) is to provide a connection device of the type mentioned in the introduction which can be installed easily and safely.
Die Erfindung betrifft eine Vorrichtung zur abisolierfreien Herstellung eines Anschlusses an ein Flachkabel, das wenigstens eine abgeschirmte Datenleitung mit einer oder mehreren Adern aufweist, gemäß Patentanspruch 1. Die Vorrichtung weist zur abisolierfreien Durchdringung von Abschirmung und Isolierung und zur Kontaktierung einer Ader wenigstens einen Anzapfkontakt auf. Der Anzapfkontakt ist an seinem freien Ende elektrisch leitend ausgebildet, und ist an seinem Flankenbereich mit einer Isolation ausgerüstet ist, um einen Kurzschluss zwischen der zu kontaktierenden Ader und der Abschirmung zu vermeiden. Der Anzapfkontakt ist so an einer Andruckplatte angeordnet, dass die Herstellung des Anschlusses durch Kraftbeaufschlagung der Andruckplatte zum Flachkabel hin und ein damit einhergehendes Eindringen des Anzapfkontakts in das Flachkabel erfolgt. Der Anzapfkontakt weist eine Schneide auf, die in Längsrichtung des Flachkabels oder leicht geneigt zu dieser verläuft. Der Anzapfkontakt verbreitert sich, im Querschnitt senkrecht zur Schneide gesehen.The invention relates to a device for stripping-free production of a connection to a flat cable having at least one shielded data line with one or more wires, according to
Mögliche Ausgestaltungen sind Gegenstand der abhängigen Patentansprüche. Bei einer Ausgestaltung ist die Andruckplatte beispielsweise einseitig in einem Gelenk gelagert, so dass das Eindrücken des wenigstens einen Anzapfkontakts durch eine Schwenkbewegung der Andruckplatte zum Flachkabel hin erfolgt. Der Anzapfkontakt ist verschiebbar an der Andruckplatte angeordnet ist, um eine Relativbewegung zwischen Anzapfkontakt und Flachkabel in Kabellängsrichtung beim Eindringen in das Flachkabel zu vermeiden.Possible embodiments are the subject of the dependent claims. In one embodiment, the pressure plate is for example mounted on one side in a joint, so that the impressions of the at least one tap contact by a pivoting movement of the pressure plate to the flat cable out. The tap contact is slidably disposed on the pressure plate to prevent relative movement between the tap contact and flat cable in the cable longitudinal direction when penetrating into the flat cable.
Weitere Merkmale gehen für den fachmännischen Leser aus der folgenden detaillierten Beschreibung von Ausführungsformen und der angefügten Zeichnung hervor.Other features will become apparent to those skilled in the art from the following detailed description of embodiments and the accompanying drawings.
Ausführungsformen der Erfindung werden nun beispielhaft und unter Bezugnahme auf die angefügte Zeichnung beschrieben, in der:
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Fig. 1 eine perspektivische Ansicht einer ersten Ausführungsform einer Anschlussvorrichtung mit fest an der Andruckplatte angeordneten Anzapfkontakten im geöffneten Zustand ist; -
Fig. 2 eine entsprechende Ansicht eines Querschnitts entlang der Linie II-II inFig. 5 ist; -
Fig. 3 und4 Ansichten entsprechend denFig. 1 bzw. 2, jedoch des geschlossenen Zustands der Anschlussvorrichtung sind; -
Fig. 5 eine Vorderansicht der Anschlussvorrichtung im geöffneten Zustand ist; -
Fig. 6 ein vergrößerter Ausschnitt vonFig. 2 im Bereich der Anzapfkontakte ist; -
Fig. 7 ein vergrößerter Ausschnitt vonFig. 4 im Bereich des Anzapfkontakts ist; -
Fig. 8 ein vergrößerter Ausschnitt vonFig. 5 im Bereich der Anzapfkontakte ist; -
Fig. 9 Querschnitte des Anzapfkontakts derFig. 6 - 8 senkrecht zur Schaftrichtung in verschiedenen Höhen zeigt; -
Fig. 10 einen Anzapfkontakt mit leicht geneigter Schneide veranschaulicht; -
Fig. 11 einen Anzapfkontakt mit einer aus zwei geneigten Schneidenabschnitten zusammengesetzten Schneide veranschaulicht, der eine konvexe Form hat; -
Fig. 12 einen Anzapfkontakt mit einer aus zwei geneigten Schneidenabschnitten zusammengesetzten Schneide veranschaulicht, der eine konkave Form hat; -
Fig. 13 einen Anzapfkontakt mit gekrümmter Schneide veranschaulicht; -
Fig. 14 Ausführungsformen von Anzapfkontakten veranschaulicht, bei den sich die Parallelität bzw. Neigung der Schneide auf einen ganz oder teilweise geöffneten Zustand der Anzapfvorrichtung bezieht; -
Fig. 15 eine Ansicht einer zweiten Ausführungsform im geöffneten Zustand entsprechendFig. 2 zeigt, wobei die Anzapfkontakte an einem Schlitten in der Andruckplatte angeordnet sind; -
Fig. 16 eine Ansicht der zweiten Ausführungsform, jedoch im geschlossenen Zustand entsprechendFig. 4 zeigt; -
Fig. 17 eine perspektivische Draufsicht der Andruckplatte der zweiten Ausführungsform im geöffneten Zustand derFig. 15 zeigt; und; -
Fig. 18 eine perspektivische Draufsicht der Andruckplatte der zweiten Ausführungsform entsprechendFig. 17 , nun jedoch im geschlossenen Zustand derFig. 16 zeigt.
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Fig. 1 is a perspective view of a first embodiment of a connection device with fixedly arranged on the pressure plate tap contacts in the open state; -
Fig. 2 a corresponding view of a cross section along the line II-II inFig. 5 is; -
Fig. 3 and4 Views according to theFig. 1 and 2, however, are the closed state of the terminal device; -
Fig. 5 is a front view of the connecting device in the open state; -
Fig. 6 an enlarged section ofFig. 2 in the field of tapping contacts; -
Fig. 7 an enlarged section ofFig. 4 in the area of the tap contact; -
Fig. 8 an enlarged section ofFig. 5 in the field of tapping contacts; -
Fig. 9 Cross sections of the tap contact theFig. 6-8 perpendicular to the direction of the sheep at different heights; -
Fig. 10 illustrates a tapping contact with a slightly inclined cutting edge; -
Fig. 11 illustrates a tap contact with a cutting edge composed of two inclined cutting portions, which has a convex shape; -
Fig. 12 illustrates a tap contact with a cutting edge composed of two inclined cutting sections, which has a concave shape; -
Fig. 13 illustrates a curved blade tapping contact; -
Fig. 14 Embodiments of tapping contacts illustrated in which the parallelism or inclination of the blade refers to a fully or partially opened state of the tapping device; -
Fig. 15 a view of a second embodiment in the open state accordinglyFig. 2 shows, wherein the tap contacts are arranged on a carriage in the pressure plate; -
Fig. 16 a view of the second embodiment, but in the closed state accordinglyFig. 4 shows; -
Fig. 17 a perspective top view of the pressure plate of the second embodiment in the open state ofFig. 15 shows; and; -
Fig. 18 a perspective top view of the pressure plate of the second embodiment accordinglyFig. 17 , but now in the closed state ofFig. 16 shows.
In der Praxis hat sich gezeigt, dass bei Durchstechkontakten nach Art der oben genannten
Bei den Ausführungsformen liegt die Schneide in einer (gedachten) Ebene, die durch die zu kontaktierende Ader und die Eindringrichtung aufgespannt wird. Dies bedeutet, dass bei Ausführungsformen mit leicht geneigter Schneide die Schneide und die zu kontaktierende Ader nicht etwa windschief zueinander verlaufen, sondern gemeinsam in einer Ebene liegen.In the embodiments, the cutting edge lies in a (imaginary) plane, which is spanned by the wire to be contacted and the penetration direction. This means that in embodiments with a slightly inclined cutting edge, the cutting edge and the wire to be contacted do not run approximately skewed, but lie together in one plane.
Der genannte Schereffekt liegt bei denjenigen Ausführungsformen am deutlichsten zutage, bei denen die Schneide in der Längsrichtung des Flachkabels, also nicht geneigt zu dieser verläuft. Jedoch verschwindet der Schereffekt nicht etwa schlagartig, wenn man die Schneide geneigt zur Flachkabel-Längsrichtung anordnet. Bei sehr großen Neigungswinkeln, wie etwa in der
Bei manchen Ausführungsformen hat die Schneide die Form eines einzelnen Geradenstücks. Bei anderen Ausführungsformen kann die Schneide aus mehreren unterschiedlich geneigten Geradenabschnitten zusammengesetzt sein. Möglich ist zum Beispiel eine Schneidenform nach Art eines "V", wobei dieses entweder auf der Spitze stehen oder um 180° gedreht sein kann. Es ist auch möglich, mehrere "V" aneinander zu reihen, so dass eine insgesamt gezähnte Form entsteht. Die oben Winkelangaben beziehen sich jeweils auf die einzelnen geraden Abschnitte der Schneide; es handelt sich in den angegebenen Beispielen also genaugenommen um sehr flache "V".In some embodiments, the cutting edge is in the form of a single line piece. In other embodiments, the cutting edge may be composed of a plurality of differently inclined straight line sections. It is possible, for example, a cutting mold in the manner of a "V", which may be either on the top or rotated by 180 °. It is also possible to string several "V's" together to create a total serrated shape. The above angle specifications refer to the individual straight sections of the cutting edge; In fact, in the examples given, it is very flat "V".
Bei manchen Ausführungsformen schließt - wie unten noch näher erläutert wird - an die Schneide an einer oder beiden Seiten eine stärker geneigte isolierende Schneidflanke an.In some embodiments includes - as will be explained in more detail below - on the cutting edge on one or both sides of a more inclined insulating cutting edge.
Bei anderen Ausführungsformen verläuft die Schneide nicht gerade bzw. stückweise gerade, sondern hat eine gekrümmte Form, zum Beispiel die Form eines Kreisabschnitts oder Ellipsenabschnitts oder eines Abschnitts einer sonstigen Korbbogenform (also einer Form, deren Krümmungsradius von den Rändern zur Mitte hin zunimmt). Bei manchen dieser Ausführungsformen setzt sich die Schneide kontinuierlich in die Schneidflanke fort; beide zusammen haben dann z.B. die Form eines Halbkreises, einer Halbellipse oder eine sonstige Korbbogenform. Strenggenommen lässt sich bei letzteren Ausführungsformen mangels eines "Knicks" (als einer sprunghaften Änderung der Steigung) keine genaue Grenze zwischen dem als "Schneide" und dem als "Schneidflanke" bezeichneten Bereichen angeben. Zumindest lässt sich aber feststellen, dass ein Anzapfkontakt mit gekrümmter Schneide - wenn er in der Mitte (also dort wo er zuerst in das Flachkabel eindringt) einen relativ großen Krümmungsradius aufweist - einen relativ langen Mittelbereich hat, in dem die Schneide nicht oder nur leicht geneigt zur Kabellängsrichtung verläuft. Wo man auch die Grenze zur stärker geneigten Schneidflanke ziehen mag, ist somit eine nicht oder schwach geneigte Schneide vorhanden, die in ihrer Funktion der oben im Zusammenhang mit gerade verlaufenden, nicht oder wenig geneigten Schneiden entspricht. Aufgrund der Parallelität bzw. nur geringen Neigung dieses gekrümmten Mittelbereichs kommt nämlich es auch bei solchen gekrümmten Anzapfkontakten zu dem oben beschriebenen Schereffekt. Ein in diesem Sinne "relativ großer Krümmungsradius" liegt beispielsweise vor, wenn der Krümmungsradius eines Anzapfkontakts in der Mitte größer oder gleich der Hälfte der Erstreckung des Anzapfkontakts in Längsrichtung ist (Anmerkung: bei einem Halbkreisbogen ist der Krümmungsradius einheitlich gleich der Hälfte der Länge des Anzapfkontakt; bei einem elliptischen Halbbogen mit der großen Ellipsen-Hauptachse in der Längsrichtung ist der Krümmungsradius z.B. in der Mitte größer als die Hälfte der Erstreckung des Anzapfkontakts in Längsrichtung).In other embodiments, the cutting edge is not straight or piecewise straight, but has a curved shape, for example, the shape of a circular section or ellipse section or a portion of another basket arch shape (ie, a shape whose radius of curvature increases from the edges toward the center). In some of these embodiments, the cutting edge continues continuously into the cutting edge; Both together then have, for example, the shape of a semicircle, a semi-ellipse or another basket arch shape. Strictly speaking, in the latter embodiments, in the absence of a "kink" (as a sudden change in slope), there is no exact boundary between the areas designated as the "cutting edge" and the "cutting edge". At the very least, however, it can be stated that a curved blade tapping contact - when it has a relatively large radius of curvature in the middle (ie where it first enters the flat cable) - has a relatively long central area has, in which the cutting edge is not or only slightly inclined to the cable longitudinal direction. Wherever one also wants to draw the boundary to the more inclined cutting edge, there is thus a not or slightly inclined cutting edge, which in its function corresponds to the above in connection with straight, not or little inclined cutting. Because of the parallelism or only slight inclination of this curved central region, namely, even with such curved tapping contacts, the shear effect described above occurs. A "relatively large radius of curvature" in this sense is, for example, when the radius of curvature of a tapping contact in the center is greater than or equal to half the extension of the tapping contact in the longitudinal direction (note: for a semicircular arc, the radius of curvature is uniformly equal to half the length of the tapping contact for example, in the case of an elliptical half arc with the major axis of the ellipse in the longitudinal direction, the radius of curvature in the middle, for example, is greater than half the extent of the longitudinal contact point of the tapping contact).
Eine Spitze (z.B. die Spitze des Kontaktelements 32 von
Sofern sich die Länge der Schneide in Längsrichtung eindeutig angeben lässt (wie z.B. bei einer geraden Schneide), so ist diese Länge vorzugsweise größer oder gleich dem halben Durchmesser des Leiters der zu kontaktierenden Ader, und besonders vorzugsweise größer oder gleich diesem Durchmesser. Aus praktischen Gründen wird die Länge der Schneide in der Regel das 5- bis 20-fache des Leiterdurchmessers nicht überschreiten.If the length of the cutting edge can be clearly indicated in the longitudinal direction (as in the case of a straight cutting edge), this length is preferably greater than or equal to half the diameter of the conductor of the strand to be contacted, and particularly preferably greater than or equal to this diameter. For practical reasons, the length of the cutting edge will usually not exceed 5 to 20 times the diameter of the conductor.
Bei manchen Ausführungsformen verbreitert sich der isolierte Flankenbereich in der Querebene. Bei Ausführungsformen, bei denen die Verbreiterung bereits am elektrisch leitenden Kontaktbereich, also an der Schneide beginnt, setzt sich diese Verbreiterung somit in den isolierten Flankenbereich hinein fort, und zwar beispielsweise wenigstens bis zur Höhe der Abschirmung (letzteres bezogen auf den kontaktierten Zustand der Anschlussvorrichtung). Mit anderen Worten ausgedrückt beschränkt sich also die sich erweiternde Ausbildung des Anzapfkontakts nicht etwa nur auf den elektrisch leitenden Kontaktbereich, sondern erstreckt sich auch in den isolierten Schaftbereich hinein. Bei den im Stand der Technik bekannt gewordenen Lösungen mit isolierten Anzapfkontakten befindet sich hingegen die Isolation jeweils nur im zylindrischen Bereich der Anzapfkontakte; sie erweitert sich also nicht (eine Ausnahme bildet nur die eingangs genannte
Bei manchen Ausführungsformen mit sich verbreiterndem Kontaktelement besteht zwischen dem elektrisch leitend ausgebildeten freien Ende (auch "Kontaktende" genannt) und der Isolation ein stufenloser Übergang, so dass das Kontaktende und die Isolation hinsichtlich der Formgebung einen einheitlichen Körper bilden. Bei denjenigen dieser Ausführungsformen, bei denen die Verbreiterung bereits im elektrisch leitenden Kontaktbereich beginnt, folgt somit auf das Aufschneiden der Kabel- und Aderisolation sowie der Abschirmung sogleich das Aufspreizen des Kabels in einem kontinuierlichen Vorgang, der - auf die Tiefe des anzuzapfenden Kabels, in der die Abschirmung liegt, bezogen - von dem metallisch leitenden Kontaktende begonnen und von der isolierten Flanke fortgesetzt wird.In some embodiments with a widening contact element between the electrically conductive free end (also called "contact end") and the insulation, a stepless transition, so that the contact end and the insulation in terms of shaping form a unitary body. In those of these embodiments in which the broadening already begins in the electrically conductive contact region, thus following the cutting of the cable and wire insulation and the shield immediately spreading the cable in a continuous process, the -. On the depth of the cable to be tapped in the the shield is located, starting from the metallically conductive contact end and continuing from the insulated edge.
Wie bereits oben angesprochen wurde, schließt bei manchen Ausführungsformen an die nicht oder nur gering geneigte Schneide eine stärker geneigte isolierende Schneidflanke (bei beidseitigem Anschluss: zwei isolierende Schneidflanken) an. Bei einigen dieser Ausführungsformen erfolgt die Neigungsänderung zwischen der Schneide und der Schneidflanke schlagartig, also nach Art eines Knicks (wobei dieser Knick an der Übergangstelle von leitendem zu isolierendem Material liegen kann, aber nicht muss). Alternativ erfolgt bei anderen Ausführungsformen (z.B. bei solchen mit gekrümmter Schneide) die Neigungsänderung zwischen der Schneide und der Schneidflanke kontinuierlich, d.h. ohne Knick.As already mentioned above, in some embodiments, the not or only slightly inclined cutting edge includes a more inclined insulating cutting flank (in the case of two-sided connection: two insulating cutting flanks). In some of these embodiments, the change in inclination between the cutting edge and the cutting edge occurs abruptly, ie in the manner of a bend (although this bend may or may not be at the point of transition from conductive to insulating material). Alternatively, in other embodiments (e.g., those with a curved edge), the change in inclination between the cutting edge and the cutting edge is continuous, i. without kink.
Bei manchen Ausführungsformen ist die gesamte Schneide (oder der gesamte Teil der Schneide, der in den Leiter der zu kontaktierenden Ader eindringt) elektrisch leitend ausgebildet; nur die Flanke ist isolierend.. Dies ist aber nicht etwa zwingend erforderlich; bei anderen Ausführungsformen ist somit nur ein Teil der Schneide (bzw. nur ein Teil des in den Leiter der zu kontaktierenden Ader eindringenden Teils der Schneide) elektrisch leitend ausgebildet ist, der andere Teil hiervon ist jedoch isolierend ausgebildet. Die Schneide ist z.B. teilweise aus isolierendem Material, und z.B. nur zentraler Teilbereich der Schneide ist aus leitendem Material. Beispielsweise kann eine gekrümmte Schneide aus einem Stück aus isolierendem Kunststoffmaterial gefertigt sein, in das ein elektrisch leitender Metallstift eingesetzt ist, der an der an der am tiefsten in das Flachkabel eindringenden Stelle einen Teil der Schneidenoberfläche bildet.In some embodiments, the entire blade (or the entire portion of the blade that enters the conductor of the wire to be contacted) is electrically conductive; only the flank is insulating .. But this is not absolutely necessary; In other embodiments, therefore, only part of the cutting edge (or only part of the part of the cutting edge penetrating into the conductor of the wire to be contacted) is designed to be electrically conductive, but the other part thereof is designed to be insulating. The cutting edge is eg partly made of insulating material, and eg only central portion of the cutting edge is made of conductive material. For example, a curved cutting edge can be made of one piece of insulating plastic material into which an electrically conductive metal pin is inserted, which forms part of the cutting surface at the point penetrating the deepest in the flat cable.
Bei manchen Ausführungsformen hat der Anzapfkontakt auch in der Längsebene, d.h. der gedachten Ebene, die durch die Schneide und die Eindringrichtung aufgespannt wird, eine sich verbreiternde Form. Wie oben bereits erwähnt wurde, bildet die Isolation an ihrer Berandung in der Längsebene wenigstens eine Schneidflanke. Beispielsweise befindet sich an den beiden Enden des länglichen Anzapfkontakts in der Längsebene jeweils eine isolierende Schneidflanke. Diese isolierenden Schneidflanken verlängern beim Eindringen des Anzapfkontakts in die Aderisolierung den von der Schneide zunächst in der Abschirmung erzeugten Schnitt, wobei die Länge des Schnitts mit zunehmender Eindringtiefe aufgrund der sich erweiternden Form der Isolation des Anzapfkontakts größer wird. Der Anzapfkontakt hat somit z.B. die Form eines Schiffchens. Obwohl bei manchen Ausführungsformen diese isolierenden Schneidflanken stärker gegenüber der Kabellängsrichtung geneigt sind als die Schneide (z.B. stärker als 30°), kommt es aufgrund der Schiffchenform im Verein mit dieser Schnittverlängerung zu einem Aufspreizen der Abschirmung, so dass trotz der größeren Neigung der isolierenden Schneidflanken die Abschirmung nicht nach innen gezogen, sondern zur Seite weggeschoben wird. Dies gilt entsprechend für Ausführungsformen mit gekrümmter Schneide, bei denen sich - wie oben erwähnt - die Schneide kontinuierlich in einen Bereich größerer Neigung - nämlich die Schneidflanke - fortsetzt. Bei manchen Ausführungsformen ist die Andruckplatte, wie bei der eingangs genannten
Mit einer solchen Schwenkbewegung geht eine gewisse Veränderung der Winkelstellung des Anzapfkontakts einher. Die Schneide steht also in der Stellung, in der sie die Abschirmung durchtrennt, in einem etwas anderen Winkel als in der Endstellung, in der sie im Leiter zu liegen kommt. Die Größe dieser Winkeländerung hängt von der Wegdifferenz zwischen den beiden Stellungen relativ zur Länge des Hebelarms ab, über den Anzapfkontakt angelenkt ist. In der Regel wird aufgrund typischer Abmessungen diese Winkeländerung relativ klein sein; bei den bildlich dargestellten Ausführungsformen beträgt sie beispielsweise weniger als 10°.With such a pivoting movement is accompanied by a certain change in the angular position of the tap contact. The cutting edge is thus in the position in which it cuts through the shield, in a slightly different angle than in the end position in which it comes to rest in the ladder. The size of this change in angle depends on the path difference between the two positions relative to the length of the lever arm, is hinged on the tap. As a rule, due to typical dimensions, this change in angle will be relatively small; in the illustrated embodiments, for example, it is less than 10 °.
Bei manchen Ausführungsformen beziehen sich nun die getroffenen Definitionen zum Winkelverlauf der Schneide (parallel/leicht geneigt bzw. 30°/20°/10°) auf die Winkelstellung der Schneide im fertig kontaktierten Zustand des Anzapfkontakts.In some embodiments, the definitions made concerning the angle course of the cutting edge (parallel / slightly inclined or 30 ° / 20 ° / 10 °) now relate to the angular position of the cutting edge in the fully contacted state of the tapping contact.
Alternativ beziehen sich die getroffenen Definitionen zum Winkelverlauf der Schneide (parallel/leicht geneigt bzw. 30°/20°/10°) auf diejenige Winkelstellung, die die Schneide hat, wenn sie die Abschirmung durchdringt.Alternatively, the definitions made about the angle of the cutting edge (parallel / slightly inclined or 30 ° / 20 ° / 10 °) refer to the angular position that the cutting edge has when it penetrates the shielding.
Bei manchen Ausführungsformen mit gelenkig gelagerter Andruckplatte tritt bei der Schwenkbewegung zum Eindrücken der Anzapfkontakte an der proximal zum Gelenk liegenden isolierenden Schneidflanke relativ zum Kabel eine zusätzliche Bewegungskomponente in Richtung zum Gelenk auf (dies hängt von der Lage des Gelenks ab - die besagte Bewegungskomponente tritt z.B. auf, wenn das Gelenk oberhalb des Kontaktendes des Anzapfkontakts liegt). Die "proximale Schneidflanke" ist die dem Gelenk zugewandte Schneidflanke. Zur Erläuterung des Begriffs "zusätzliche Bewegungskomponente" sei folgendes ausgeführt: Beim Eindrücken eines sich in der vom Kontaktende zum Schaft erweiternden Anzapfkontakts - nur mit einer Translationsbewegung, also ohne Schwenkbewegung - ergäbe sich an einer schräg nach außen verlaufenden Schneidflanke bei der Eindrückbewegung eine quer zur Eindrückrichtung gerichtete Bewegungskomponente, allein aufgrund der Schrägstellung der Schneidflanke. Andererseits träte - eine entsprechende Anordnung des Gelenks vorausgesetzt - bei einer Schwenkbewegung selbst bei einer nicht schräg verlaufenden Schneidflanke, allein aufgrund der Schwenkbewegung, eine Bewegungskomponente in Richtung zum Gelenk auf. Bei Ausführungsformen mit in Längsebene schräg verlaufender Schneidflanke gibt es also ggf. zwei Beiträge zur Bewegungskomponente in Kabellängsrichtung zum Gelenk, wobei einer von dem Schrägverlauf der Schneidflanke und der andere von der Schwenkbewegung herrührt. Der zweitgenannte Beitrag ist derjenige, der oben als die "zusätzliche Bewegungskomponente" benannt worden ist.In some embodiments with articulated pressure plate occurs during the pivoting movement for pressing the tap contacts on the proximal to the joint lying insulating cutting edge relative to the cable an additional component of movement in the direction of the joint (this depends on the position of the joint - said movement component occurs, for example when the hinge is above the contact end of the tapping contact). The "proximal cutting edge" is the cutting edge facing the joint. To explain the term "additional movement component" is the following: When pressing a widening in the contact end to the shank tapping - only with a translational movement, ie without pivotal movement - would result at an obliquely outwardly extending cutting edge during the Eindrückbewegung a transverse to the Eindrückrichtung directed movement component, solely due to the inclination of the cutting edge. On the other hand, assuming a suitable arrangement of the joint, a movement of movement would take place in the direction of the joint during a pivoting movement, even if the cutting edge does not run at an angle, solely because of the pivoting movement. In embodiments with an edge running obliquely in the longitudinal plane, there are thus possibly two contributions to the movement component in the cable longitudinal direction to the joint, one resulting from the oblique course of the cutting edge and the other from the pivoting movement. The second contribution is the one named above as the "additional component of movement".
An der proximalen Schneidflanke des Anzapfkontakts addiert sich also diese zusätzliche Bewegungskomponente zu der von der herrührenden Schrägstellung der Schneidflanke, während sie an der distalen Schneidflanke von jener zu subtrahieren ist. Um dies auszugleichen und damit an beiden Schneidflanken eine ungefähr gleiche große Gesamt-Bewegungskomponente in Kabellängsrichtung zum Gelenk zu schaffen, hat bei manchen Ausführungsformen die proximale Schneidflanke eine geringere Neigung in der Längsebene relativ zur Eindrückrichtung des Anzapfkontakts als die distal zum Gelenk liegende Schneidflanke. Dieser Neigungsunterschied dient also der Kompensation der genannten zusätzlichen Bewegungskomponente. Bei manchen Ausführungsformen kann dieser Neigungsunterschied sogar so weit gehen, dass die proximale Schneidflanke nicht schräg verläuft.Thus, at the proximal cutting edge of the tap contact, this additional motion component adds to that from the resulting skew of the cutting edge, while at the distal cutting edge thereof it is to be subtracted. To compensate for this and thus provide on both cutting edges an approximately equal large total motion component in the cable longitudinal direction to the joint, in some embodiments, the proximal cutting edge has a smaller inclination in the longitudinal plane relative to the indentation direction of the tapping contact as the cutting edge distal to the articulation. This difference in inclination thus serves to compensate the said additional movement component. In some embodiments, this difference in inclination may even go so far that the proximal cutting edge is not inclined.
Der Erfinder hat eine weitere (andere) Maßnahme erkannt, wie das Hineinziehen der Abschirmung beim Kontaktieren von Datenleitungen vermieden werden kann, ohne dass hierbei ein Hineindrehen der Kontaktelemente erforderlich wäre. Diese weitere Maßnahme geht von der Erkenntnis aus, dass bei Anschlussvorrichtungen mit gelenkig gelagerte Andruckplatte die oben erwähnte zusätzliche Bewegungskomponente in Kabellängsrichtung für ein Hineinziehen der Abschirmung verantwortlich sein kann, und löst dieses Problem damit, die zusätzliche Bewegungskomponente durch eine verschiebbare Anordnung des Anzapfkontakts erst gar nicht auftreten zu lassen.The inventor has recognized another (other) measure of how to avoid pulling in the shield when contacting data lines without requiring the contact elements to be screwed in. This further measure is based on the recognition that in connection devices with articulated pressure plate, the above-mentioned additional movement component in the cable longitudinal direction for pulling the shield may be responsible, and solves this problem so that even the additional movement component by a displaceable arrangement of the bleeder contact to let occur.
Obwohl diese andere Maßnahme zur Vermeidung des Hineinziehens der Abschirmung am wirkungsvollsten mit nicht oder wenig geneigten Schneiden der oben beschriebenen Art funktioniert, zeigt sich eine Verbesserung hinsichtlich des "Hineinzieh-Problems" bereits allein durch die Beseitigung der zusätzlichen Bewegungskomponente, also auch bei Verwendung anders geformter Anzapfelemente, zum Beispiel spitzwinkeliger Anzapfelemente. Aus diesem Grund wird die genannte andere Maßnahme zur Beseitigung der zusätzlichen Bewegungskomponente nicht nur zusammen mit der erstgenannten Maßnahme einer nicht oder wenig geneigten Schneide beansprucht, sondern auch durch einen unabhängigen Anspruch, der offen lässt, ob das Anzapfelement eine Schneide aufweist oder welche Form eine ggf. vorhandene Schneide hat, etc.Although this other means of avoiding pull-in of the shield is most effective with no or little inclined blades of the type described above, an improvement in the "pull-in" problem is manifested solely by the elimination of the additional motion component, even when using other shaped components Tapping elements, for example, angled tapping elements. For this reason, the said other measure for eliminating the additional movement component is claimed not only together with the first-mentioned measure of a non-inclined or slightly inclined cutting edge, but also by an independent claim which leaves open whether the tapping element has a cutting edge or what form a possibly Has existing cutting edge, etc.
Die Schwenkbewegung des Anzapfkontakts würde also bei unbeweglicher Lagerung an der Andruckplatte zu einer Bewegungskomponente des Anzapfkontakts in Kabellängsrichtung führen. Bei manchen Ausführungsformen ist die Richtung dieser Bewegungskomponente so, dass der Anzapfkontakt beim Eindringen in das Flachkabel zum Gelenk hin versetzt würde. Zur Vermeidung einer solchen Bewegungskomponente beim Eindringen in das Flachkabel ist der Anzapfkontakt bei manchen Ausführungsformen verschiebbar an der Andruckplatte angeordnet. Zum Beispiel zur Vermeidung der genannten Versetzung zum Gelenk hin ist bei manchen Ausführungsformen die Richtung der Verschiebung so, dass der Anzapfkontakt beim Eindringen in das Flachkabel relativ zur Andruckplatte vom Gelenk weg bewegt wird. Um eine solche Verschiebung zu erzielen, ist der Anzapfkontakt in der Längsrichtung der Andruckplatte verschiebbar.The pivotal movement of the tap contact would therefore lead to immobile mounting on the pressure plate to a movement component of the tap contact in cable longitudinal direction. In some embodiments, the direction of this component of motion is such that the tapping contact would be displaced towards the hinge as it enters the flat cable. In order to avoid such a movement component when penetrating into the flat cable, the tap contact is arranged displaceably on the pressure plate in some embodiments. For example, in order to avoid said offset to the hinge, in some embodiments, the direction of displacement is such that the tap contact in the Penetration in the flat cable is moved relative to the pressure plate away from the joint. In order to achieve such a shift, the tap contact in the longitudinal direction of the pressure plate is displaceable.
Die Verschiebung des Anzapfkontakts erfolgt beispielsweise durch Mitnahme im Verlauf des Eindringens: sobald das freie Ende der Schneide in den Mantel des Flachkabels eingreift, ist eine Relativverschiebung des Anzapfkontakts zum Flachkabel praktisch ausgeschlossen (da wegen des Einriffs hierfür eine relativ große Kraft erforderlich wäre). Durch die Schwenkbewegung kommt es zu einer Relativbewegung zwischen Flachkabel und Andruckplatte in Längsrichtung. Die frühzeitige Festlegung des Anzapfkontakts am Flachkabel bewirkt, dass der Anzapfkontakt vom Kabel mitgenommen wird, also im Verlauf der weiteren Schwenkung der relativ zur Andruckplatte vom Gelenk weg bewegt wird.The displacement of the tap contact, for example, by entrainment in the course of penetration: as soon as the free end of the blade engages the sheath of the flat cable, a relative displacement of the bleed contact to the flat cable is practically impossible (because of the intervention for this would require a relatively large force). The pivoting movement leads to a relative movement between the flat cable and the pressure plate in the longitudinal direction. The early determination of the tap contact on the flat cable causes the tap contact is taken from the cable, so in the course of further pivoting is moved relative to the pressure plate away from the joint.
Da der Verschiebungsweg des Anzapfkontakts i.a. begrenzt ist, ist dafür Sorge zu tragen, das der Anzapfkontakt am Anfang der Schwenkbewegung nicht etwa schon am distalen Ende seines Verschiebungswegs steht, denn diese würde keine (weitere) Verschiebung weg vom Gelenk erlauben. Hierzu wäre es z.B. denkbar, dass die mit der Installation befasste Bedienungsperson vor dem "Anzapfen" den Anzapfkontakt von Hand an seinen proximalen Anschlag schiebt, damit er dann beim Anzapfen die Freiheit hat, sich mit dem Kabel vom Gelenk weg zu bewegen. Bei manchen Ausführungsformen ist dies gewissermaßen automatisiert, indem der verschiebbare Anzapfkontakt in der Andruckplatte kraftbeaufschlagt (z.B. federbeaufschlagt) ist, derart, dass er sich vor dem Eindringen in das Flachkabel durch die Kraftbeaufschlagung (z.B. Federbeaufschlagung) in derjenigen Endposition seines Verschiebungsbereichs befindet, die dann im Verlauf des Eindringens eine Verschiebung des Anzapfkontakts zur Vermeidung einer Bewegung relativ zum Flachkabel in Kabellängsrichtung erlaubt. Beispielsweise wird der Anzapfkontakt von einer Feder zum proximalen Anschlag ihres Verschiebungsbereichs beaufschlagt. Die Beaufschlagungskraft ist einerseits ausreichend groß, um den noch frei verschiebbaren (d.h. noch nicht in das Kabel eingreifenden) Anzapfkontakt an der Andruckplatte zum proximalen Anschlag zu verschieben, ist aber andererseits ist ausreichend klein, um nach Eingriff ins Flachkabel die Mitnahme des Anzapfkontakts durch die Relativbewegung des Kabels zur Andruckplatte zu erlauben (andernfalls würde der Anzapfkontakt das Kabel in Längsrichtung aufschneiden).Since the displacement path of the tap contact i.a. is limited, care must be taken that the tapping contact at the beginning of the pivoting movement is not already at the distal end of his displacement path, because this would allow no (further) displacement away from the joint. For this purpose it would be e.g. It is conceivable that, prior to "tapping", the operator pushes the tapping contact by hand onto its proximal stop so that it will then have the freedom to move away from the joint with the cable during tapping. In some embodiments, this is effectively automated by the displaceable tap contact in the pressure plate is subjected to force (eg spring loaded), such that it is in the end position of its displacement range before the penetration into the flat cable by the application of force (eg spring loading), which then in Course of penetration allows a shift of the tap contact to prevent movement relative to the flat cable in the cable longitudinal direction. For example, the tap contact is acted upon by a spring to the proximal stop of its displacement region. The biasing force is on the one hand sufficiently large to move the still freely displaceable (ie not yet engaging in the cable) tap on the pressure plate to the proximal stop, but on the other hand is sufficiently small to entrainment of the tapping contact by the relative movement after engagement with the flat cable the cable to the pressure plate (otherwise the tap contact would cut the cable lengthwise).
Bei manchen Ausführungsformen ist Anzapfkontakt Teil eines in der Andruckplatte verschiebbaren Schlittens. Bei einigen Ausführungsformen ist der Anzapfkontakt aus einem Metall-Formteil hergestellt, das wenigstens im Flankenbereich von isolierendem Material umgeben ist. Das Metall-Formteil ist beispielsweise durch Gießen und Stanzen/Pressen mit ggf. spanender Nachbearbeitung, z.B. zum Schärfen der genannten Schneide, hergestellt.In some embodiments, tapping contact is part of a slide displaceable in the pressure plate. In some embodiments, the tap contact is one Produced metal molding, which is surrounded at least in the flank area of insulating material. The metal molding is produced, for example, by casting and stamping / pressing with possibly subsequent machining, for example for sharpening said cutting edge.
Bei manchen Ausführungsformen ist der isolierende Flankenbereich des Anzapfkontakts mit der Andruckplatte bzw. dem Schlitten einstückig hergestellt. Die isolierende Andruckplatte bzw. der Schlitten hat dann an ihrer/seiner zum Flachkabel orientierten Seite beispielsweise eine Oberfläche, die im wesentlichen komplementär zur Außenkontur des Flachkabels ist, jedoch an den späteren Anzapfstellen warzenartige oder schneidenartige Vorsprünge aufweist. Durch mittige Bohrungen in diesen Vorsprüngen werden bei der Herstellung z.B. die genannten Metall-Formteile gesteckt und rückseitig gegen Herausfallen gesichert und kontaktiert. Hierdurch sind die Anzapfkontakte einfach herstellbar. Durch geeignete, zusammenpassende Formgebung der Metall-Formteile und der Vorsprünge in der Andruckplatte bzw. im Schlitten lässt sich der oben genannte stufenlose Übergang zwischen dem durch das Metall-Formteil gebildeten Kontaktende und der durch den Vorsprung gebildeten Isolation erzielen. Bei der genannten einstückigen Herstellung der isolierenden Flankenbereiche der Anzapfkontakte mit der Andruckplatte bzw. dem Schlitten kann es sich beispielsweise um eine Abformung in einem gemeinsamen Gießvorgang (z.B. Kunststoff-Spritzguss) handeln.In some embodiments, the insulating flank region of the tapping contact is made integral with the pressure plate or carriage. The insulating pressure plate or the carriage then has, for example, a surface on its side oriented toward the flat cable which is substantially complementary to the outer contour of the flat cable but has wart-like or blade-like projections at the later tapping points. Through central holes in these projections, for example, the mentioned metal moldings are inserted in the production and secured back against falling out and contacted. As a result, the bleed contacts are easy to produce. By suitable mating shaping of the metal moldings and the protrusions in the pressure plate or in the slide, the abovementioned stepless transition between the contact end formed by the metal molding and the insulation formed by the protrusion can be achieved. The aforementioned one-piece production of the insulating flank regions of the tapping contacts with the pressure plate or the slide may be, for example, an impression in a common casting process (eg plastic injection molding).
Nun zurückkehrend zu
Das Flachkabel 4 (
Über den Datenadern 9 ist in der Andruckplatte 6 des Oberteils 3 jeweils ein Anzapfkontakt 10 für die Datenadern 9 vorgesehen, der aus der Andruckplatte 5 zum Flachkabel 4 hin gerichtet vorsteht. Die beiden Anzapfkontakte 10 sind feststehend (also unverdrehbar und nicht verschiebbar) in der oberen Andruckplatte 6 angeordnet. In Kabellängsrichtung sind die beiden Anzapfkontakte 10 versetzt angeordnet, um die mit dem Eindrücken der Anzapfkontakte 10 einhergehende Aufspreizung der Datenadern 9 auf verschiedene Stellen, in Kabellängsrichtung gesehen, zu verteilen. (Anmerkung: In
Nur stilisiert sind in
Das Oberteil 3 ist mit einem zweiseitigen Hebel 11 ausgerüstet, der an einer Hebelachse 12 am Oberteil 3 angelenkt ist und dieses gabelförmig umgreift. An der zum Flachkabel 4 weisenden Seite des Hebels weist dieser an beiden Seiten des Oberteils 3 jeweils eine Gabel 13 auf, die in eine komplementäre Gabelausnehmung 14 im Unterteil 2 eingreifen und ein dort vorgesehenes Gabel-Widerlager 15 untergreifen kann. An der vom Flachkabel 4 abgewandten Seite des Hebels 11 ist dieser mit einem Handgriff 16 ausgestattet.The
Die Installation eines Kabelanschlusses mit Hilfe der Anschlussvorrichtung 1 erfolgt hiermit auf folgende Weise: Zunächst wird das Flachkabel 4 in das (noch gesonderte) Unterteil eingelegt. Sodann werden Unterteil 2 und Oberteil 3 an ihren Einrastnocken 19 zur Bildung der ihrer Schwenkachse 19 zusammengefügt. Unter- und Oberteil befinden sich dann zunächst noch in einer offenen Stellung, z.B. unter einem Winkel von 15° zueinander, wie in den
Die Anschlussvorrichtung 1 weist am Oberteil 3 eine Abgangs-Steckbuchse 21 auf, die beispielsweise gemäß einem der verbreiteten Industrie-Stecksysteme (z.B. von Wieland®, Wago® oder Ensto®) codiert ist. Bei der Datenleitung 8 handelt es sich beispielsweise um einen EIB-, LON- oder CAN-Bus. Bei der Anschlussvorrichtung 1 kann es sich beispielsweise um einen sogenannten Aktor handeln, also ein Gerät, das mit einem oder mehreren durch Steuersignal betätigbaren Schaltern für die zur Abgangs-Steckbuchse 21 abzweigenden Starkstromadern ausgerüstet ist. Die Steuersignale zu Ein- und Ausschalten kommen als Signale z.B. gemäß dem EIB-, LON- bzw. CAN-Standard auf der Datenleitung 8. Mit einem derartigen Aktor können z.B. elektrische Beleuchtungen und Geräte durch Steuersignale z.B. von einer Gebäudeleitzentrale ferngesteuert ein- und ausgeschaltet werden. Bei einer anderen möglichen Anwendung ist die Anschlussvorrichtung 1 als Sensoreinrichtung ausgebildet, und ist hierzu z.B. im Oberteil 3 mit einem geeigneten Sensor (z.B. Temperatursensor) bestückt. Die Signale dieses Sensors können über die Datenleitung 8 z.B. an eine Gebäudeleitzentrale übermittelt werden. Alternativ oder ergänzend ist es auch möglich, externe Sensoren oder Geräte, die Mess- oder Zustandssignale liefern, über die Abgangs-Steckbuchse 21 an der Anschlussvorrichtung 1 anzuschließen sind. Diese Signale werden dann von der Anschlussvorrichtung 1 in den durch die Datenleitung 8 gebildeten Bus gespeist.The connecting
In einem Schnitt entlang der Linie II-II von
Der Aufbau des Flachkabels 4 im Bereich der Datenleitung 8 ist in
Die
Die Anzapfkontakte 10 sind im wesentlichen aus jeweils zwei Teilen aufgebaut, nämlich einem Metall-Formteil 26 und einer Isolation 27. Das Metall-Formteil 26 weist einen länglichen, im wesentlichen aus zwei Zylinderabschnitten zusammengesetzten Schaft 28 sowie ein Kontaktstück 29 auf, das am freien Ende des Schafts 28 angeformt ist. Das Kontaktstück 29 läuft - in Querrichtung (
Die Länge 1 (
Die Isolationen 27 sämtlicher Anzapfkontakte 10 sind einstückig mit der Andruckplatte 6 des Oberteils 5 hergestellt, z.B. durch Spritzgießen eines geeigneten isolierenden Kunststoffs. Nach dem Spritzgießen und ggf. Ausbohren der Isolation 27 ist zur Fertigstellung eines Anzapfkontakts 10 nur noch das Metallformteil 26 von der Kabelseite her einzuschieben und rückseitig gegen Herausfallen zu sichern.The
Die Isolation 27 umgibt den Schaft 28 des Formteils 26 und bildet somit eine isolierende Flanke des Anzapfkontakts 10, die nur die Schneide 30 und das zu ihr hinführende Kontaktstück 29 unbedeckt lässt, wobei die Erstreckung des letzteren in Schaftrichtung ungefähr dem Durchmesser d entspricht. Im Schnitt in Querrichtung (
Im Schnitt in Längsrichtung (
Bei den in
Der Schließvorgang beginnt mit der in
Während bei den Ausführungsformen der
Bei einer anderen Ausführungsform gemäß
Bei einer anderen Ausführungsform des Anzapfkontakts 10 gemäß
Bei einem weiteren Ausführungsbeispiel gemäß
Die bisher besprochenen Beispiele betrafen verschiedene parallele oder geneigte Anordnungen der Schneide 30 relativ zur Kabellängsrichtung 32, wobei sich die Parallelität bzw. Neigung stets auf diejenige Position des Anzapfkontakts 10 bezog, in der dieser im kontaktierten Endzustand, also bei geschlossener Anschlussvorrichtung 1, angeordnet ist. Bei Ausführungsformen, bei denen das Oberteil 3 im Verlauf der Eindrückbewegung um eine Drehachse (z.B. die Drehachse 18) geschwenkt wird, verändert sich die Winkelstellung des Anzapfkontakts 10 im Verlaufe dieser Schwenkbewegung. Bei alternativen Ausführungsformen kann sich nun die Parallelität bzw. Neigung der Schneide 30 auf eine weiter geöffnete Stellung der Anschlussvorrichtung 1 beziehen. Beispielsweise veranschaulicht
Der in den
Der Schlitten 35 ist in einer in der Andruckplatte 6 vorgesehenen Gleitführung in der Längsrichtung der Andruckplatte 6 verschiebbar gelagert. Der Schlitten 35 ist beispielsweise aus Kunststoff geformt, und zwar z. B. einstückig mit der Isolierung 27 des Anzapfkontakts 10 (
Im geschlossenen Zustand (
Der Schlitten 35 ist in seiner Längsbewegung durch Anschläge begrenzt, und zwar durch einen proximalen Anschlag 36 und einen distalen Anschlag 37. Der maximal mögliche Bewegungshub zwischen diesen beiden Anschlägen ist in
Wie unten anhand der
Im Verlauf der Schließbewegung dringt der Ansatzkontrakt 10 mit seinem freien Ende in das Flachkabel 4 ein, und wird dabei im weiteren Verlauf der Schließbewegung etwas in distaler Richtung relativ zur Andruckplatte 6 verschoben, denn andernfalls würde er das Kabel 4 in Längsrichtung aufschlitzen. Zu diesem Zweck ist die den Anzapfkontakt 10 in proximaler Richtung beaufschlagende Federkraft kleiner als die auf den Kontakt wirkende Schlitzkraft in distaler Richtung. Nach vollständiger Schließung erreicht der Anzapfkontakt 10 die in
Die
Bei den in den
Die beschriebenen Ausführungsformen zeigen somit Anschlussvorrichtungen, mit denen das abisolierfreie Anzapfen von abgeschirmten Datenleitungen auf einfache und (Kurzschluss-) sichere Weise erfolgen kann.The described embodiments thus show connection devices with which the stripping-free tapping of shielded data lines can be effected in a simple and (short-circuit) safe manner.
Claims (15)
- Apparatus for establishing a connection to a flat cable (4) without stripping the insulation, the said flat cable having at least one shielded data line (8) with one or more cores (9), wherein the apparatus (1) for piercing the shielding (22) and the insulating means (24, 25) without stripping the insulation and for making contact with a core (9) has at least one tapping contact (10), the tapping contact (10) is of electrically conductive design at its free end and is equipped with an insulation (27) on its flank region in order to prevent a short circuit between the core (9) with which contact is to be made and the shielding (22), wherein the tapping contact (10) is arranged on a contact-pressure plate (6) such that the connection is established by applying force to the contact-pressure plate (6) in the direction of the flat cable (4) and the tapping contact (10) penetrates the flat cable (4) in conjunction, characterized in that the tapping contact (10) has a blade (30) which runs in the longitudinal direction of the flat cable (4) or with an inclination of less than or equal to 30° in relation to the longitudinal direction of the flat cable (4) at least in the middle region of the tapping contact (10), and the tapping contact (10) widens - as seen perpendicular to the blade (30) in cross section.
- Apparatus according to Claim 1, wherein the blade (30) has a curved shape.
- Apparatus according to Claim 2, wherein a curved insulating cutting flank (31) adjoins the curved blade (30) on both sides, wherein the two curved insulating cutting flanks (31) extend a cut, which was initially made by the blade (30), when the tapping contact (10) penetrates deeper into the flat cable (4).
- Apparatus according to Claim 3, wherein the blade (30) and the cutting flanks (31) together have the shape of a semicircle, a half-ellipse or another catenary shape.
- Apparatus according to one of Claims 1 to 4, in which the insulated flank region is designed such that it can widen for the purpose of widening in cross section perpendicular to the blade (30).
- Apparatus according to Claim 5, in which there is a smooth transition between the free end (29) which is of electrically conductive design and the insulation (27) of the tapping contact (10).
- Apparatus according to one of Claims 3 to 6, in which the change in inclination between the blade (30) and the cutting flank (31) takes place continuously.
- Apparatus according to one of Claims 1 to 7, in which the entire portion of the blade (30) which penetrates the conductor (23) of the core (9) with which contact is to be made is of electrically conductive design.
- Apparatus according to one of Claims 1 to 7, in which only part of the portion of the blade (30) which penetrates the conductor (23) of the core (9) with which contact is to be made is of electrically conductive design, but the other part of said portion is of insulating design.
- Apparatus according to one of Claims 1 to 9, wherein the tapping contact (10) is arranged on a contact-pressure plate (6) which is mounted in a joint (18) on one side, wherein the connection is established by a pivoting movement of the contact-pressure plate (6) with force being applied to the contact-pressure plate (6) in the direction of the flat cable (4), and as a result of which the tapping contact (10) penetrates the flat cable (4) in conjunction.
- Apparatus according to Claim 10, wherein the tapping contact (10) is arranged in a displaceable manner on the contact-pressure plate (6) in order to prevent a relative movement between the tapping contact (10) and the flat cable (4) in the longitudinal direction of the cable when the said tapping contact penetrates the flat cable (4).
- Apparatus according to Claim 11, wherein the tapping contact (10) is arranged on a slide (35) which can be displaced in the contact-pressure plate (6).
- Apparatus according to one of Claims 1 to 10, 12, wherein the insulating portion of the tapping contact (10) is integrally produced with the contact-pressure plate (6) or the slide (35).
- Apparatus according to Claim 13, wherein the insulating portion of the tapping contact (10) which is integrally produced with the contact-pressure plate (6) or the slide (35) comprises insulating cutting flanks (31) and a portion of the blade (30), wherein the other portion of the blade (30) is formed by a metallic contact piece (29).
- Apparatus according to Claim 13 or 14, wherein the insulating contact-pressure plate (6) or the insulating slide (35) has, on that side which is oriented towards the flat cable (4), a surface which complements the outer contour of the flat cable (4) but has blade-like projections, wherein the blade-like projections have central bores through which shaped metal parts are passed and secured against falling out and contact is made with the said metal parts at the rear.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007041814A DE102007041814A1 (en) | 2007-09-03 | 2007-09-03 | Device for stripping-free production of a connection to a flat cable |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2031704A2 EP2031704A2 (en) | 2009-03-04 |
EP2031704A3 EP2031704A3 (en) | 2009-12-30 |
EP2031704B1 true EP2031704B1 (en) | 2016-06-01 |
Family
ID=40085643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08015559.1A Active EP2031704B1 (en) | 2007-09-03 | 2008-09-03 | Device for manufacturing a connection to a flat cable without insulation displacement |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2031704B1 (en) |
DE (1) | DE102007041814A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202009014294U1 (en) | 2009-10-22 | 2011-02-24 | Woertz Ag | Set for making an electrical installation |
DE202012101070U1 (en) * | 2012-03-26 | 2013-06-27 | Zumtobel Lighting Gmbh | Punching tool for ribbon cable |
CN109768408B (en) * | 2019-03-25 | 2024-09-06 | 厦门西蒙斯照明电器有限公司 | Electric connector and lamp |
CN117856117B (en) * | 2023-12-21 | 2024-06-21 | 德维嘉汽车电子系统(无锡)有限公司 | Terminal peeling device and technology of wire harness production line |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1765200A1 (en) * | 1968-04-18 | 1971-07-15 | Siemens Ag | Terminal for coaxial cable |
CH523579A (en) | 1971-03-31 | 1972-05-31 | Oskar Woertz Inh H & O | Electrical installation device with a flat cable and at least one associated connection device |
CH559433A5 (en) * | 1972-11-28 | 1975-02-28 | Sprecher & Schuh Ag | |
JP2713845B2 (en) * | 1992-12-25 | 1998-02-16 | 矢崎総業株式会社 | Crimp joint connector |
DE4402837C2 (en) | 1994-01-31 | 1998-08-06 | Daetwyler Ag | Electrical installation system, formed by flat cable and connection device |
DE19504013C1 (en) | 1995-02-07 | 1996-07-18 | Lumberg Karl Gmbh & Co | Connection device for the optional production of a reusable electrical connection or tap on multi-core electrical lines |
DE19814182C2 (en) * | 1998-03-30 | 2000-05-11 | Siemens Ag | Contact system for contactless stripping |
DE10012177A1 (en) * | 2000-03-13 | 2001-10-31 | Wieland Electric Gmbh | connection device |
EP1178571A3 (en) | 2000-07-31 | 2002-04-03 | FINCANTIERI CANTIERI NAVALI ITALIANI S.p.A. | Improvements in devices and methods for electrical and signal distribution, particularly in shipping environments |
DE10133659A1 (en) | 2001-07-11 | 2003-01-30 | Daetwyler Ag | Connection device for tapping a flat cable |
DE20111496U1 (en) | 2001-07-11 | 2002-11-21 | Dätwyler AG Schweizerische Kabel-, Gummi- und Kunststoffwerke, Altdorf, Uri | Connection device for tapping a flat cable |
DE20111491U1 (en) | 2001-07-11 | 2002-01-24 | Machein, Günter, 84072 Au | Badminton training device |
DE10163809B4 (en) * | 2001-12-22 | 2006-01-26 | Wieland Electric Gmbh | terminal |
DE10201495A1 (en) * | 2002-01-17 | 2003-08-14 | Wieland Electric Gmbh | Electrical connection terminal for ribbon cable, has contact element fixed to lid part which is hinged to base, e.g. for insulation-displacement connection |
JP4249132B2 (en) | 2002-11-04 | 2009-04-02 | ヴェルツ・アーゲー | Contact screw |
US7144269B2 (en) | 2003-09-23 | 2006-12-05 | Aslan Industries Corporation | Hinged electrical connector for insulated cable |
JP3917164B2 (en) * | 2003-12-08 | 2007-05-23 | 松下電器産業株式会社 | Duplexer and multiplexer |
US7462060B2 (en) | 2003-12-15 | 2008-12-09 | Woertz Ag | Cable connector |
-
2007
- 2007-09-03 DE DE102007041814A patent/DE102007041814A1/en not_active Withdrawn
-
2008
- 2008-09-03 EP EP08015559.1A patent/EP2031704B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2031704A2 (en) | 2009-03-04 |
EP2031704A3 (en) | 2009-12-30 |
DE102007041814A1 (en) | 2009-03-05 |
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