EP3128627A1 - Clamping device and its opening unit and method for actuating the clamping device by the opening unit - Google Patents

Abstract

The invention relates to a clamping device for the clamping reception of a plurality of wires (L) of a cable (K), with at least two clamping legs (2a, 2b, 3a, 3b) and a clamping area (23rd, 23a, 3b) formed on the respective clamping leg (2a, 2b, 3a, 3b) , 33), with each one vein (L) of the cable (K) against a clamping region (23, 33) associated clamping surface (14, 24) can be clamped, wherein a respective clamping leg (2a, 2b, 3a, 3b) elastic in a clamping position can be brought, in which by means of the clamping region (23, 33) a core (L) under pretension against the associated clamping surface (14, 24) can be clamped, and wherein a respective clamping leg (2a, 2b, 3a, 3b) of the clamping position is deflected out into a release position, in which a core (L) between the clamping region (23, 33) and the associated clamping surface (14, 24) can be inserted. In this case, an actuating region (26, 36) spaced from the clamping region (23, 33) is formed on the respective clamping limb (2a, 2b, 3a, 3b), which is adapted to deflect the clamping limb (2a, 2b, 3a, 3b). in that an actuating element (66), which is different from the one to be clamped, acts on the actuating region.

Description

The invention relates to a clamping device for clamping receiving a plurality of wires of a cable according to the preamble of claim 1 and an opening assembly and a method for actuating the clamping device according to claim 9 or 14th

The clamping device comprises at least two clamping legs, on each of which a clamping region is formed, with which a wire of a cable against a clamping leg associated mating surface (clamping surface) is clamped, wherein a respective clamping leg on the one hand elastically in a clamping position can be brought, in which he means Clamping area (inserted between the clamping portion and the associated clamping surface) wire under bias against the associated clamping surface clamps, and wherein a respective clamping leg on the other hand from its clamping position out against the bias in a release position is deflected, in which a wire located between the clamping region of the clamping leg and the associated clamping surface is not clamped between the clamping area and clamping surface.

Such a clamping arrangement is for example from the EP 0 089 779 A1 known. In this arrangement, the clamping legs are braced against each other by means of additional spring elements and have at their upper, free ends insertion bevels. By inserting a wire along a respective insertion bevel between two clamping legs a spreading of the respective clamping legs is effected, which allows insertion of the wire between the clamping legs to jam them there.

The invention is based on the problem to further improve a clamping device of the type mentioned, in particular with regard to the jamming and the subsequent release of wires of a cable by means of the clamping device.

This problem is inventively solved by the provision of a clamping device with the features of claim 1.

Thereafter, at a respective clamping leg in addition to the clamping area a spaced from the clamping area actuating portion is formed, which is adapted and provided to allow a deflection of the clamping leg (against the bias) by an acting different from the vein to be clamped actuating element acts on the actuating region ,

The solution according to the invention allows a defined deflection of the clamping legs of the clamping device by means of an opening assembly unit by acting with this provided actuators on the operating areas of the clamping legs. In this way, on the one hand, the targeted insertion of a wire to be clamped can be prepared precisely between a respective clamping region and the associated clamping surface; and on the other hand, the removal of a previously clamped between the clamping area and clamping surface vein can be initiated.

Once a respective wire of a cable between the clamping portion of a deflected clamping leg and the associated counter surface / clamping surface has been arranged, this can there - automatically clamped and held in the clamped state - due to the elastic tension of the clamping legs in their respective clamping position - without this (From outside the clamping device or its clamping legs) external energy would be supplied. That is, the clamping of a respective wire takes place (alone) due to internal elastic forces of the chip device. In this state, mounting work such as assembling a connector can then be performed by using the wires jammed in the jig. After completion of the assembly work, the clamping legs of the clamping device can be deflected by means of the opening assembly again to release the previously jammed wires.

The number of clamping legs of the clamping device corresponds to at least the number of wires to be clamped a cable. At least two clamping legs, in particular four, six or eight clamping legs, are provided. Advantageously, an even number of clamping legs, so that they can be arranged symmetrically with respect to a central portion of the clamping device.

According to a preferred embodiment of the invention, the clamping device is formed from an integrally molded component. This means on the one hand that the clamping legs are not formed by separate, interconnected via fasteners elements, but rather form an integral part of a single component. On the other hand, this means that the elastic tension of the clamping legs in their respective clamping position is not achieved by additional external elements, such as coil springs, but by a resilient design of the clamping device forming integral component itself. Such a component can for example made of sheet metal exist, so be designed as a so-called spring plate.

According to a variant of the invention, the actuating region of a respective clamping leg is designed as a guide region along which an associated (external) actuating element is to be guided in order to deflect the corresponding clamping leg out of its clamping position into the release position. The respective Actuation area in the form of a guide area is inventively formed separately and spaced from the clamping area, by means of which a wire of a cable can be clamped against an associated clamping surface.

Furthermore, a respective actuating region on a clamping limb can differ from its clamping region in that the clamping limb in the actuating region has a different curvature or a different spatial profile on its surface (to be brought into contact with an actuating element) than in the clamping region or its with a surface to be brought into contact with a vein to be clamped.

According to one embodiment of the invention, a separating region, in particular in the form of an elevation on the clamping leg, is arranged between the clamping region and the actuating region of a respective clamping leg, which prevents a vein to be clamped or an actuating element along the clamping leg from the clamping region to the actuating region or vice versa Operating range can slide to the clamping area.

Advantageously, a respective actuation or guide region has a profile inclined with respect to the main extension direction of its clamping leg, so that a deflection of the clamping leg (transversely to the direction of the clamping leg) is effected by longitudinal movement of an actuating element along the main extension direction of the clamping leg under the action of its actuating or guiding region Longitudinal movement) is caused. The individual clamping legs of the clamping device can in particular extend substantially parallel to one another.

Furthermore, the clamping device may comprise a first group of clamping legs and a second group of clamping legs, wherein the clamping legs of the first group are biased respectively in the opposite direction in its clamping position as the clamping legs of the second group and are accordingly deflected in the opposite direction to reach their release position like the clamping legs of the second group. (The deflection of the clamping legs for their transfer from the clamping position to the release position is advantageously opposite to the direction along which the clamping legs are biased towards their clamping position.) The Clamping legs of the first group on the one hand and the clamping legs of the second group on the other hand can be arranged on both sides of a central portion of the clamping device; that is, the clamping legs of the first group are provided on one side with respect to the central portion and the clamping legs of the second group on the other side with respect to the central portion.

In particular, when the clamping device has more than two clamping legs, they can be arranged to each other so that at least a part of the clamping surfaces, which each form a mating surface to a clamping region of a clamping leg, is formed by a clamping surface of a clamping leg facing away clamping surface of the latter clamping leg. That is, at least in a part of the clamping leg is located on a side facing away from the clamping area, a clamping surface which serves as a counter surface for the clamping region of a further clamping leg.

In addition, attachment points can be provided on the clamping device, via which the clamping device can be fastened to an associated carrier body.

An opening assembly, by means of which a plurality of clamping legs of a clamping device according to the invention are simultaneously deflected in order to transfer each of these in their release position is characterized by the features of claim 9.

Thereafter, the opening assembly comprises a guide unit and a longitudinally movably guided on the guide unit operating unit, which latter is provided with a plurality of actuators over which the actuating unit can simultaneously attack the operating areas of the plurality of clamping legs of a tensioning device to this - by a guided by means of the guide unit longitudinal movement the actuating elements - to deflect contrary to their biasing direction. In this case, a positioning unit is further arranged on the guide unit, by means of which the actuating unit can be positioned in a defined longitudinal position on the guide unit before it is moved out of this position in the longitudinal direction along the guide unit, by means of their actuation elements to be deflected to the clamping legs of a clamping device act.

The actuating unit is e.g. guided on the guide unit in such a way that it can be moved longitudinally along an axis on the guide unit in order to act on the actuating areas of the clamping legs of a tensioning device via their actuating elements in such a way that they are deflected and thereby transferred to their release position.

To trigger a longitudinal movement of the actuating unit along the guide unit, an actuator may be provided, which is mounted on the guide unit and in particular along the same axis may be adjustable relative to the actuating unit, along which the actuating unit is longitudinally movable relative to the guide unit.

The actuation unit provided on the actuating elements can be formed by a plurality of a surface of the actuator protruding, juxtaposed actuating pins.

According to a further aspect of the invention, an arrangement is provided which comprises a tensioning device having the features of at least one of claims 1 to 8 and an opening assembly for actuating such a tensioning device having the features of at least one of claims 9 to 12.

A method for actuating a clamping device according to the invention by means of an opening assembly according to the invention is characterized by the features of claim 14. An advantageous development of the method results from the dependent therefrom claim.

Further details and advantages of the invention will become apparent in the following description of an embodiment with reference to the figures.

Figur 1

eine Spannvorrichtung zur klemmenden Aufnahme mehrerer Adern eines Kabels, die hierfür eine Mehrzahl Klemmschenkel umfasst;

Figur 2

die Spannvorrichtung aus Figur 1 mit ausgelenkten Klemmschenkeln, so dass sich die Adern eines Kabels hierin anordnen lassen, um diese zu verklemmen;

Figur 3

die Spannvorrichtung aus Figur 1 zusammen mit Befestigungsmitteln zur Befestigung der Spannvorrichtung an einem Trägerkörper;

Figur 4

die Spannvorrichtung aus Figur 1 und 3, befestigt an einem Trägerkörper;

Figur 5A

eine Öffnungsbaueinheit zum gleichzeitigen Auslenken mehrerer Klemmschenkel der Spannvorrichtung aus Figur 1, umfassend eine Führungseinheit, eine Betätigungseinheit sowie einen Aktor;

Figur 5B

die Führungseinheit der Öffnungsbaueinheit aus Figur 5A;

Figur 6A

die Öffnungsbaueinheit aus Figur 5A zusammen mit einer hiermit zu betätigenden Spannvorrichtung der in Figur 1 dargestellten Art;

Figur 6B

einen Ausschnitt der Anordnung aus Figur 6A;

Figur 6C

eine weitere Ansicht der Anordnung aus Figur 6A;

Figur 7A

die Anordnung aus den Figuren 6A bis 6C nach einem Ineingriffbringen von Betätigungselementen der Öffnungsbaueinheit mit der zu betätigenden Spannvorrichtung;

Figur 7B

einen Ausschnitt der Anordnung aus Figur 7A in einer weiteren Ansicht;

Figur 8A

die Anordnung aus den Figuren 7A und 7B nach einem Auslenken der Klemmschenkel der Spannvorrichtung mittels der Öffnungsbaueinheit;

Figur 8B

eine weitere Ansicht der Anordnung aus Figur 8A;

Figur 9

die Anordnung aus den Figuren 8A und 8B nach dem Einfügen der Adern eines Kabels in die Spannvorrichtung (mit noch ausgelenkten Klemmschenkeln);

Figur 10A

die Anordnung aus Figur 9 nach einem Rückfedern der Klemmschenkel in die Klemmposition, so dass die Adern des Kabels in der Spannvorrichtung verklemmt sind;

Figur 10B

eine weitere Ansicht der Anordnung aus Figur 10A;

Figur 11A

die Anordnung aus den Figuren 10A und 10B nach einem Abnehmen der Spannvorrichtung von der Öffnungsbaueinheit;

Figur 11B

eine weitere Ansicht der Anordnung aus Figur 11A.

Show it:

FIG. 1

a tensioning device for clampingly receiving a plurality of wires of a cable, which comprises a plurality of clamping legs for this purpose;

FIG. 2

the clamping device off FIG. 1 with deflected clamping legs so that the wires of a cable can be arranged therein to jam them;

FIG. 3

the clamping device off FIG. 1 together with fastening means for fastening the tensioning device to a carrier body;

FIG. 4

the clamping device off FIG. 1 and 3 attached to a carrier body;

FIG. 5A

an opening assembly for simultaneously deflecting a plurality of clamping legs of the clamping device FIG. 1 comprising a guide unit, an actuator unit and an actuator;

FIG. 5B

the guide unit of the opening assembly from FIG. 5A ;

FIG. 6A

the opening assembly from FIG. 5A together with a clamping device to be actuated in this way FIG. 1 represented type;

FIG. 6B

a section of the arrangement FIG. 6A ;

FIG. 6C

another view of the arrangement FIG. 6A ;

FIG. 7A

the arrangement of the FIGS. 6A to 6C after engaging operating elements of the opening assembly with the clamping device to be actuated;

FIG. 7B

a section of the arrangement FIG. 7A in another view;

Figure 8A

the arrangement of the FIGS. 7A and 7B after a deflection of the clamping legs of the clamping device by means of the opening assembly;

FIG. 8B

another view of the arrangement Figure 8A ;

FIG. 9

the arrangement of the Figures 8A and 8B after inserting the wires of a cable into the clamping device (with the clamping legs still deflected);

Figure 10A

the arrangement FIG. 9 after a spring-back of the clamping legs in the clamping position, so that the wires of the cable are jammed in the clamping device;

FIG. 10B

another view of the arrangement Figure 10A ;

Figure 11A

the arrangement of the Figures 10A and 10B after removing the tensioning device from the opening assembly;

FIG. 11B

another view of the arrangement Figure 11A ,

FIG. 1 shows a view of a clamping device 1 for clamping receiving a plurality of wires of a cable. The clamping device is made in one piece in the embodiment; that is, it consists of a single, integrally molded component.

The clamping device 1 comprises a base body 10. Of this stand along a longitudinal direction of y a plurality (elongated) clamping legs 2a, 2b, 3a, 3b from, in the embodiment, four clamping legs. The clamping legs 2a, 2b, 3a, 3b extend along the said direction y substantially parallel to each other.

The clamping legs 2a, 2b, 3a, 3b are combined to a first group 2a, 3a and a second group 2b, 3b of clamping legs, of which the first group 2a, 3a on one side and the other group 2b, 3b on the other, opposite side of a central portion 12 of the clamping device 1 is arranged. The central portion 12 of the clamping device 1 stands, as well as the clamping legs 2a, 2b, 3a, 3b, along the longitudinal direction y of the main body 10 of the clamping device 1 from. The clamping legs 2a, 2b, 3a, 3b are integrally formed on the Molded body 10. The same applies to the central portion 12 of the clamping device. 1

The clamping legs 2a, 2b, 3a, 3b each include a transition section 21 and 31, on which they merge integrally into the main body 10 of the clamping device 1, and also a free end 22 and 32, which faces away from the base body 10.

The central section 12 of the tensioning device 1 extending from the clamping arms between the two groups 2a, 3a and 2b, 3b has, on the one hand, a fastening area with an attachment point 13, in the form of a fastening opening, via which the tensioning device 1 can be fastened to a support body 4 is like in the Figures 3 and 4 shown. Furthermore, the central portion 12 of the clamping device 1 has a free end 15, which faces away from the base body 10 and which is arranged in the embodiment between the free ends 22, 32 of the clamping legs 2a, 2b, 3a, 3b. In addition, on the clamping device 1, more precisely on the base body 10, a further attachment point 11, again in the form of a mounting opening, provided to the tensioning device 1 - in cooperation with the first attachment point 13 - to fix against rotation on a support body.

At the inwardly, ie in the direction of the central portion 12 of the tensioning device 1, facing surface of a respective clamping leg 2a, 2b, 3a, 3b respectively a clamping portion 23 and 33 is formed. This clamping area is u.a. Characterized in that a respective clamping leg 2a, 2b, 3a, 3b at its one clamping region 23, 33 forming surface each having a substantially arcuate curvature.

Each of the clamping regions 23, 33 is in each case assigned a mating surface in the form of a clamping surface 14 or 24, such that between a clamping region 23 or 33 and the associated clamping surface 14 or 24 a component, in the present case specifically a wire of a cable, can be clamped. For this purpose, the clamping device 1 in the exemplary embodiment specifically designed such that a respective clamping leg 2a, 2b, 3a, 3b due to internal elastic forces of the tensioning device 1 (or more precisely the clamping legs 2a, 2b, 3a, 3b itself) in FIG. 1 shown clamping position, in which a respective Clamping legs 2a, 2b, 3a, 3b with its clamping portion 23 or 33 is only slightly spaced from the associated clamping surface 14 and 24 respectively. As a result, a wire located between the respective clamping region 23 or 33 and the associated clamping surface 14 or 24 is received there in a clamping manner (automatically, under the action of an elastic prestressing), as described below with reference to FIG FIGS. 10A, 10B and 11A, 11B will be explained.

In this case, the inner clamping legs 2a, 2b and their clamping areas 23 associated mating surfaces in the form of clamping surfaces 14 at the central portion 12 of the clamping device 1 is formed, which is arranged between the two inner clamping legs 2a, 2b. The outer clamping legs 3a, 3b and their attachment areas 33 associated mating surfaces in the form of clamping surfaces 24 are in contrast formed on each one of the inner clamping legs 2a, 2b, on a side facing away from the respective clamping portion 23 of the inner clamping legs 2a, 2b side of the corresponding Clamping leg 2a or 2b.

Since both groups 2a, 3a and 2b, 3b are biased by clamping legs when clamping a wire therebetween in each case in the direction of the central portion 15 of the clamping device 1, this means that the clamping legs 2a, 3a of the first group along an opposite direction x transverse to Longitudinal direction y in the direction of the central portion 12 are braced as the clamping legs 2b, 3b of the second group with the tensioning direction -x.

Of the clamping portions 23, 33 of the clamping legs 2a, 2b and 3a, 3b along the longitudinal extension direction is spaced at the respective clamping legs 2a, 2b; 3a, 3b are each an actuating portion 26 and 36, respectively. The respective operating region 26, 36 of a clamping leg 2a, 2b and 3a, 3b is u.a. Characterized in that the clamping legs 2a, 2b, 3a, 3b at their the respective actuating portion 26 and 36 forming surface each inclined to the main extension direction of the respective clamping leg (longitudinal direction y).

The clamping region 23, 33 of a respective clamping leg 2a, 2b, 3a, 3b lies closer to its free end 22, 32 than the actuating portion 26, 36 of the clamping leg. As follows, in particular with reference to FIGS. 7A to 8B will be explained, serve the actuating portions 26, 36 as guide portions for actuators by the action of a respective clamping leg 2a, 2b, 3a, 3b against its biasing direction is deflected to the distance between the clamping portion 23, 33 of a respective clamping leg and the associated counter-surface or clamping surface 14, 24 to increase and thus to allow the introduction of a vein to be clamped between them or to release an intervening vein L between them.

It is between the clamping portion 23,33 and the actuating portion 26, 36 of a respective clamping leg 2a, 2b; 3a, 3b, a separating region 25, 35, in the embodiment in the form of a survey or a projection on the clamping legs 2a, 2b, 3a, 3b, arranged, which prevents a to be clamped wire L or an actuator 66 along the clamping leg 2a, 2b ; 3a, 3b can slide from the clamping region 23, 33 into the actuating region 26, 36 or, conversely, from the actuating region 26, 36 into the clamping region 23, 33.

FIG. 2 shows the tensioning device FIG. 1 in the just mentioned state, in which the clamping legs 2a, 2b, 3a, 3b by deflection of the in FIG. 1 shown clamping position have been transferred to its release position, which allows the introduction of jammed wires or the removal of previously clamped wires. The one-piece component forming the tensioning device 1 is designed to be correspondingly elastic. It may in particular be designed as a one-piece sheet metal part or more precisely as a spring plate.

FIG. 3 shows the tensioning device from the FIGS. 1 and 2 together with fastening elements 41, 42, which pass through the attachment points 11, 13, wherein the one fastening element 41 is designed as a stepped pin and the other element 42 as a simple pin or bolt, which in particular should allow a rotation. The above the fastening elements 41, 42 fixed to a support 4 clamping device 1 is in FIG. 4 shown.

FIG. 5A shows an opening assembly, by means of which the clamping legs 2a, 2b, 3a, 3b of the above with reference to FIGS. 1 to 4 described clamping device from its clamping position (see FIG. 1 ) into its release position (cf. FIG. 2 ) deflectable are. The actuating assembly comprises a guide unit 5, an actuating unit 6 and an actuator 7.

The additional in FIG. 5B Guide unit 5, shown separately, forms a guideway 50 extending along a longitudinal extension direction y (defining an adjustment axis), which is delimited on both sides by guide webs 51, 52, which in turn each form a guide channel 53 or 54. In addition, on the guide unit 5, more precisely in the exemplary embodiment at the guide track 50, a positioning element 55, designed here as a positioning lug, is arranged.

On the guide part 5, more precisely on the guide track 50 (and thus between the guide webs 51, 52), the actuating unit 6 is guided. This has two lateral guide edges 63, 64, which engage longitudinally displaceable in each case one of the guide channels 53, 54 of the guide unit 5.

For acting on in each case one operating region of the clamping device 1 or the clamping legs 2a, 2b, 3a, 3b provided thereon, actuating elements 66 are provided on the opening unit 6 (in a section 60). In the exemplary embodiment, these are embodied as actuation pins protruding from the opening unit 6 transversely to the longitudinal extension direction y and transversely to the guide track 50.

Furthermore, an actuator 7 is mounted on the actuating unit 6. For this purpose, the actuating unit 6 on a storage area 67. As a result, the actuator 7 is movably guided in the bearing area 67 of the actuating unit 6 along the longitudinal extension direction y, ie along the direction along which the actuating unit 6 moves longitudinally along the longitudinal axis y Guide unit 5 is guided.

The bearing area 67 of the actuating unit 6 further comprises (facing away from the actuating elements 66 along the longitudinal extension direction y) a support region 65, on which the actuator 6 can be displaced, for example in the form of an adjusting element 75 which can be telescoped along the direction of elongation y, for example along the direction y a piston rod, supported and optionally additionally connected to the adjusting element 75. As follows, in particular with reference to FIGS. 7A to 8B described will be, by a method of the actuator 7 with respect to the actuating unit 6 (along the longitudinal direction y), a longitudinal movement of the actuating unit 6 with respect to the guide unit 5 along the same longitudinal direction y triggered, whereby the actuating elements 66 of the opening unit 6 (under the action of the operating areas 26, 36 of the clamping legs 2a, 2b and 3a, 3b), a simultaneous deflection of the clamping legs 2a, 2b, 3a, 3b of the clamping device FIG. 1 (contrary to their elastic tension) can effect.

FIG. 5A shows the actuator 7 in the retracted state, in which the actuating element-side surface 71 has a maximum distance (along the longitudinal extension direction y) of the actuating elements 66 of the actuator unit 6.

In this state, the actuating unit 6 together with the actuator 7 - as viewed along the longitudinal extension direction y - defined with respect to the guide unit 5 positioned by the actuator 7 is supported with a support area side surface 72 along the longitudinal extension direction y on the positioning element 55 of the guide unit 5.

In that state, according to the FIGS. 6A to 6C the operating unit 6 with a tensioning device 1 intended brought into engagement to deflect over the actuating elements 66, the clamping legs 2a, 2b, 3a, 3b of the clamping device 1 can. Here, on the one hand, the clamping device 1 is defined defined along the longitudinal extension direction y, for example, as in FIG. 4 At the same time, the actuating unit 6 is positioned defined along the longitudinal extension direction y, namely, as shown FIGS. 5A and 5B described by means provided on the guide unit 5 positioning member 55 (in the form of a support member). In this constellation of the overall arrangement becomes, as with the transition from FIG. 6A to 6B recognizable and as again in FIG. 6C illustrates, the tensioning device 1 to the operating unit 6, more precisely at the actuators 66, introduced.

The actuating elements 66 of the actuating unit 6 are perpendicular to the longitudinal direction y of the clamping legs 2a, 2b, 3a, 3b on the actuating portion 26, 36 each of a clamping leg 2a, 2b, 3a, 3b positioned (and not by a displacement along the respective clamping leg in the longitudinal direction of extension y). For this purpose, a respective clamping leg 2a, 2b, 3a, 3b at its actuating portion 26, 36 has a recess which allows insertion of an actuating element 66 of the actuating unit 6 perpendicular to the longitudinal direction y of the corresponding clamping leg 2a, 2b, 3a, 3b to the Actuator 66 to the actuating portion 26, 36 to position.

In the FIGS. 7A and 7B the tensioning device 1 is shown after the intended placement on the opening assembly to deflect the clamping legs 2a, 2b, 3a, 3b of the clamping device 1 by means of the latter. The tensioning device 1 is in this case (using the in FIG. 4 shown carrier 4) with respect to the longitudinal direction y fixed such that the actuators 66 of the actuator 6 with a first (upper) portion 26a, 36a of the actuating portions 26, 36 on the clamping legs 2a, 2b and 3a, 3b come into contact. At the same time, the vertical position of the actuating unit 6 and thus of the actuating elements 66 along the longitudinal direction y is determined by spatially fixing the guide unit 5, in which the actuating unit 6 is guided, and, on the other hand, the actuating unit 6 by means of the guide unit 5 Positioning element 55 is defined defined along the longitudinal direction y. The actuator 7 is in this case along the longitudinal extension direction y of the clamping device 1, more precisely from the base body 10, spaced.

To deflect the clamping legs 2a, 2b, 3a, 3b of the clamping device 1 in order to equip them with wires to be clamped, is in accordance with the transition of FIGS. 7A and 7B to FIGS. 8A and 8B the actuator 7 by means of (for example, electrically or pneumatically driven) adjusting element 75 along the longitudinal direction y in the direction of the clamping device 1 or more precisely in the direction of the base body 10 is moved.

As soon as the actuator 7 comes into contact with the actuating unit 1 or its base body 10 during that movement (via its actuating element-side surface 71), further movement of the actuator 7 in that direction is not possible because of the fixing of the tensioning device 1 along the longitudinal extension direction y. Instead, under the Effect of the adjusting force of the adjusting element 75 (more precisely the opposing force or reaction force generated thereby) now in the guide unit 5 longitudinally movably mounted actuator 6 (in the opposite direction as previously the actuator 7) parallel to the longitudinal direction y (along the direction -y, down) postponed. In this case, the actuating elements 66 provided on the actuating unit 6 move along the actuating regions 26, 36 of the clamping legs 2a, 2b, designed as guide areas. 3a, 3b from their first, upper portion 26a, 36a towards their second, lower portion 26b, 36b. Because of the inclined course of the actuating portions 26, 36 between the end portions 26a, 26b and 36a, 36b in this case the clamping legs 2a, 2b, 3a, 3b of the clamping device 1 to the outside (away from the central portion 12) deflected. Due to the greater inclination of the operating areas 36 of the outer clamping legs 3a, 3b, they are deflected more strongly than the inner clamping legs 2a, 2b with the less inclined actuating areas 26.

As a result, the deflection of the clamping legs causes the distance between the clamping leg-side clamping regions 23, 33 and the respectively associated as counter surfaces clamping surfaces 14, 24 increases. This allows the insertion of a respective core L of a cable K between a respective clamping region 23, 33 of the clamping legs 2a, 2b; 3a, 3b and the clamping surface 14,24 associated counter surface. This on the basis of the transition from the Figures 8A and 8B to FIG. 9 clarified.

Subsequently, according to the Figures 10A and 10B the actuator 7 by means of the adjusting element 75 again moved to its starting position in which it is spaced along the longitudinal extension direction y of the clamping device 1. Under the effect of its elastic bias, therefore, the clamping legs 2a, 2b; 3a, 3b of the tensioning device 1 from its (by displacement of the actuating unit 6 and the associated actuating elements 66 according to the Figures 8A, 8B assumed) release position back into the clamping position, so that the individual wires L of the cable K respectively between a clamping portion 23, 33 of the clamping legs 2a, 2b; 3a, 3b and the associated clamping surface 14, 24 are clamped as a counter surface.

After jamming the wires L to the jig 1 latter can be removed from the opening assembly 5, 6, 7, as in the Figures 11A and 11B shown. The wires L held on the tensioning device 1 can then be subjected to further processing steps, for example for connection to an electrical plug. After completion of the assembly work, an opening assembly of the above based on the FIGS. 5A to 11B be used to release the jammed in the tensioning device wires again.

When the clamping device 1 is a cost manufacturable component with which the wires of a cable during assembly work automatically (without additional external forces), due to the elastic tension of the clamping legs, can be clamped. A power supply is only required for deflecting the clamping legs, on the one hand during insertion of the wires into the clamping device and on the other hand when removing the wires from the clamping device.

The geometry of the tensioner is readily adaptable to the shape, size and number of wires. The number of clamping legs should correspond to the number of wires to be clamped in a cable. The shape of the clamping areas on the clamping legs and their distance from the associated clamping surfaces can be selected depending on the shape and size of the wires to be clamped.

The resulting clamping force on the clamping device, with which the wires are held by the clamping legs, can u.a. Adjust according to the dimensions of the clamping legs.

The embodiment described above shows an opening assembly by means of a clamping device by moving actuators along a longitudinal direction is actuated by these actuators act in their longitudinal movement on operating portions of the clamping legs and deflect due to the inclined course of the actuating portions of the clamping legs. Alternatively, a deflection of the clamping legs, for example, by eccentric, which engage the operating areas of the clamping legs and deflect them during rotation.

Claims (15)

Clamping device for clamping a plurality of wires (L) of a cable (K), with - At least two clamping legs (2 a, 2 b, 3 a, 3 b) and a clamping region (23, 33) formed on the respective clamping limb (2a, 2b, 3a, 3b) with which in each case one core (L) of the cable (K) is clamped against a clamping surface (14, 24) associated with the clamping region (23, 33) ) is clamped, wherein a respective clamping leg (2a, 2b, 3a, 3b) is elastically engageable in a clamping position in which by means of the clamping region (23, 33) a core (L) under bias against the associated clamping surface (14, 24) can be clamped, and wherein a respective clamping leg (2a, 2b, 3a, 3b) is deflected from the clamping position into a release position in which a vein (L) between the clamping region (23, 33) and the associated clamping surface (14, 24 ) is insertable or removable therefrom,
characterized,
in that an actuating region (26, 36) spaced from the clamping region (23, 33) is formed on the respective clamping limb (2a, 2b, 3a, 3b), which is adapted to deflect the clamping limb (2a, 2b, 3a, 3b). to allow by a different from the clamped wire (L) actuating element (66) on the actuating portion (26, 36) acts. Clamping device according to claim 1, characterized in that the clamping device is formed as a one-piece component, the clamping legs (2a, 2b, 3a, 3b) are resiliently biased in its clamping position. Clamping device according to claim 1 or 2, characterized in that a respective clamping leg (2a, 2b, 3a, 3b) in its actuation region (26, 36) has a different curvature of the surface than in the clamping region (23, 33). Clamping device according to one of the preceding claims, characterized in that a separating region (25, 35) is arranged between the clamping region (23, 33) and the actuating region (26, 36) of a respective clamping limb (2a, 2b; 3a, 3b) in that a wire (L) to be clamped can slide along the clamping leg (2a, 2b; 3a, 3b) from the clamping area (23, 33) to the actuating area (26, 36). Clamping device according to one of the preceding claims, characterized in that the clamping legs (2a, 2b, 3a, 3b) in each case along a longitudinal extension direction (y) are extended and thereby substantially parallel to each other. Clamping device according to claim 5, characterized in that the actuating region (26, 36) of a respective clamping leg (2a, 2b, 3a, 3b) is formed as a guide region, on which an actuating element (66) for deflecting the clamping leg is feasible, wherein the Guide region inclined to the longitudinal direction (y) of the associated clamping leg (2a, 2b, 3a, 3b) extends. Clamping device according to one of the preceding claims, characterized in that on the clamping device, a first group of clamping legs (2a, 3a) and a second group of clamping legs (2b, 3b) is arranged, wherein the clamping legs (2a, 3a) of a group in opposite direction are biased into its clamping position and are deflected out of its clamping position as the clamping legs (2b, 3b) of the other group and wherein the clamping legs (2a, 3a) of a group on one side of a central portion (12) of the clamping device (1) are arranged and the clamping legs (2b, 3b) of the other group on the other side of the central portion (12). Clamping device according to one of the preceding claims, characterized in that the clamping legs (2a, 2b, 3a, 3b) are arranged to each other such that at least a part of the clamping surfaces (24) of the clamping device (1) by a respective the actuating portion (23) of a Clamping leg (2a, 2b) facing away from surface of this clamping leg (2a, 2b) is formed. Opening assembly for simultaneously deflecting a plurality of clamping legs (2a, 2b, 3a, 3b) of a clamping device (1) according to one of the preceding claims, in order to transfer these to their release position, with a guide unit (5), a control unit (6) guided longitudinally movably on the guide unit (5), - A plurality of the actuating unit (6) projecting actuating elements (66), with which the actuating unit (6) simultaneously at a plurality of actuating portions (26, 36) of the clamping device (1) can engage around the clamping legs (2a, 2b, 3a, 3b ) by a longitudinal movement of the actuating elements (66) - guided by the guide unit (5) - to deflect, and a positioning element (55) arranged on the guide unit (5), with which the actuating unit (6) can be positioned on the guide unit (5) along its longitudinal movement direction (y) before the actuating elements (66) of the actuating unit (6) are positioned with the Operating areas (26, 36) of the clamping device (1) are brought into engagement. Opening assembly according to claim 9, characterized in that on the actuating unit (6) an actuator (7) is mounted longitudinally movable, which is relative to the actuating unit (6) along that axis along which the actuating unit (6) relative to the guide unit ( 5) is longitudinally movable. Opening assembly according to claim 10, characterized in that the actuator (7) is mounted on the actuating unit (6) that a movement of the actuator (7) along a first direction parallel to the axis of a counter force on the actuating unit (6) along the opposite direction. Opening assembly according to one of claims 9 to 11, characterized in that the actuating elements (66) of the actuating unit (6) are designed as juxtaposed and projecting from a common surface of the actuating unit (6) actuating pins. Arrangement for clampingly holding a plurality of cores (L) of a cable (K), comprising a tensioning device (1) for clamping the cores (L) with the features of one of claims 1 to 8 and an opening assembly for simultaneously deflecting a plurality of clamping limbs (2a, 2b, 3a, 3b) of the tensioning device (1) in order to clamp or remove the wires (L) of a cable (K) therein according to one of Claims 9 to 12. Method for simultaneously deflecting a plurality of clamping legs (2a, 2b, 3a, 3b) of a tensioning device (1) having the features of one of claims 1 to 8 using an opening assembly having the features of any of claims 9 to 12, around the wires (L) to hold the clamping device (1) by clamping or remove the wires (L) from the clamping device (1), wherein a) on the one hand the actuating unit (6) by means of the guide unit (5) and on the other hand, the clamping device (1) by means of a support (4) are respectively positioned such that the actuating elements (66) of the actuating unit (6) with the actuating portions (26, 36 ) on the clamping legs (2a, 2b, 3a, 3b) of the clamping device (1) engage, and b) the actuating unit (6) is displaced on the guide unit (5) such that the actuating elements (66) slide along the actuating areas (26, 36), wherein the clamping legs (2a, 2b, 3a, 3b) are deflected from its clamping position to its release position. A method according to claim 14, characterized in that the longitudinal movement of the actuating unit (6) on the guide device (5) is triggered by the fact that the actuator (7) is displaced relative to the actuating unit (6) until it is connected to the clamping device (1). in device, so that a further movement of the actuator (6) is prevented and by the resulting force of the actuator (7) on the actuating unit (6) the latter along the guide unit (5) is moved.

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