DE1590001A1 - Coupling for multi-core cables - Google Patents

Description

Priority: U.S.A .; June 9, 1965 U.S. Ser.No. 462 591

The invention relates to a coupling for multi-core electrical cables with a cable clamp on the rear End, and in particular such a coupling, in which an insulating body * is arranged and provided in the insulating body a plurality of contact organs with connected cable cores that extend rearward out of the clutch housing, It is rotatable on the outside of the housing part a fastening ring with screw threads rotatably arranged which is in communication

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Bayerische Vereinsbank Mfindien 820993

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is used with an attachable clamp and the purpose of a disc-shaped part of insulating material consisting of Einsätzkörρ em to deform so that the disc penetrating contact elements are locked. If the fastening ring has a first position, the contact elements are not locked in the insert body, but if the fastening ring has a second position, the contact elements are locked in the insert body.

A cable coupling according to the invention has a cable clamp, one end of which has the outer diameter aes corresponds to the rear end of the coupling part and there are also connecting means at one end of the Coupling parts a provided which engage at one end on corresponding parts of the coupling part, wherein the cable clamp consists of two half parts and the two half parts by means of appropriate connecting means be held together.

An embodiment of the invention is in the following Description discussed in connection with the figures. From the figures show:

Figure 1 is a side sectional view of a Coupling with cable according to the invention

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AMP 1869

clamps, with certain parts of the coupling shown broken open

FIG. 2 is a sectional view of the FIG

reproduced device, in which only the parts reproduced on the left in Figure 1 appear, the cable clamp is not properly placed on the cable and some parts are shown in the position in which the contacts do not have their fixed position;

Figure 3 is a perspective bar position of the invention Cable clamp!

FIG. 4 shows a perspective illustration of one part of that shown in FIG Sahelle j

Figure 5 and Figure 6 sections corresponding to the cutting lines 5-5 and 6-6 of Figure j;

Figure 7 shows a further embodiment of the invention.

A cable coupling 2 consists of the two complementary coupling parts 4a and 6a, which are shown in FIG The cap is built that over: ¹ grips the corresponding end of the housing part 6. The coupling parts are connected to one another or from one another by means of a Vex'binaungsrin; .

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The two coupling halves 4a and 6a are complementary to one another and essentially are the two Halves are identical, so that it is only necessary to describe one coupling part in more detail. The coupling part 6a will be described in detail below, with the corresponding Reference numerals of the coupling part 4a have the same meaning.

In the housing part of the coupling half 6, a composite insert part is provided, the as the orifice sealing disk 22 and two relatively rigid similar disks 24, 26 and a relatively thin elastically deformable disk 28 and an adjacent hard disk 30 and an additional soft disk 32 and one further disk 34 consists, which in turn consists of rigid material. The apertured disks 24, 26, 30 and 34 are conveniently made of epoxy resin or a material of similar properties. The discs 22, 28 and 32 are made of soft, resilient insulating material, for example neoprene rubber. The disk 28 and the disk 30 are glued to one another at their contact surfaces 29 in such a way that the disk 30, as a comparison of FIGS. 1 and 2 shows, can be displaced without

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thereby the bond point "is impaired.

Through the various disks of the insert Coaxial openings extend and form corresponding channels 36. In the channels 36 are sifa Contact organs 38, since the rear ends in the soft Disk 28, namely in front of the separating surface 29. The wires 37 are pressed against the contact organs and lead through part of the disc 28 and through the discs 30, 32 and 34 to the left.

The disk 30 has projections 40, 42 protruding at diametrically opposite points, which extend through axial slots 44 in the housing 6. These projections counteract, with respect to the axis of the coupling part, eccentric surfaces 48, which act as screw surfaces, of a rotatable fastening ring 46 which is arranged on the housing part 6 at the rear end. When contact members are to be inserted in the channels 36 -, the fastening ring 46 is rotated until a portion of the channels of the disk axially aligned with corresponding parts of the channels of the other slices of the insert body lie. The contact organs are then inserted so far that their rear end lies in the disk 28 made of soft material. .

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To fix the contact organs in the insert body, the fastening ring is rotated through an angle of 180 °, so that the rigid material existing disk 3 is brought from the position shown in Figure 2 to the position of Figure 1 and the canals are somewhat twisted and thus prevented is that the contact members can be pulled back from their position shown in the figure. The * fastening ring 46 must be in the position shown in FIG Be held in position so that the contact organs 38 wound locked in their channels 36. The inventive The purpose of the cable clamp is to prevent the fastening ring from rotating in the position shown in FIG Able to hold.

The fastening ring 46 has two opposite depressions, which in FIGS. 1 and 2 extend inwards from lJaks extend. The groove 50 is somewhat deeper than the groove 52. An annular spring washer with a gap 54 is arranged on the housing part 6 in the vicinity of the left end of the fastening ring 46 and has a radial protruding projection 58 in the vicinity of its slot point. The lower edge of the annular disk 54 in the vicinity of the projection is cut off at 60, as FIG. 6 shows and the annular disk is seated in an annular groove 56 of the housing part 6. The arrangement is such that the projection 58

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normally engages in one of the two grooves 50, 52 ei, although the projection moves resiliently to the left can be and can be brought out of engagement with the two recesses, so that based on the Fastening rings 46 can be rotated. The annular disk 54 also serves the purpose of fastening the fastening ring '46 on the housing part 6 and fixing it to lock with respect to rotation. When the fastening ring 46 is in its position shown in FIG has, in which the projection 56 engages in the relatively deep depressions 50 according to Figure 1, so the disk 30 is in the position shown in Figure 1 and the contact organs are in the channels locked. However, if the projection 5b in the flat Recess 52 engages, so sicii is the disk 30 in the position shown in Figure 2 and the contact organs are not in the channels of the insert body wedged. It should be noted that when the protrusion 58 is in the recess 50, the protrusion 58 are level with the rest of the split Pederringes 54 is located as far as possible from the end of the case body. 7 / enn on the other hand, the projection 56 of the spring ring 54 is in the Shallow recess 52 is located, the projection is somewhat closer to the end of the housing part as a result of the action of the fastening ring when he himself is when the protrusion 58 is in the deep depression

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BATH ORIGINAL

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The cable clamp is denoted by 62 and consists of two half-parts 64, 66, both of which are semi-cylindrical and are designed to be complementary to one another. Laterally extending planes 68 are provided on the opposite sides of the half-parts and each planing surface 68 has a threaded hole, while the other planing surface has an inwardly directed slot so that screws 70 'can be used to press the two half-parts together. The paddles 68 are spaced a short distance from one another between the ends of the clamp but touch at 69 near the rear end of the clamp. In FIG. 3, the ends 69 of the flange are not shown lying on top of one another, because in this illustration the clamp is not properly arranged in the coupling part. Each half of the clamp also has tangentially extending tabs 12 at the rear end which extend across the surface of the other half when the clamp is assembled.

At the front ends the halves 64 and 66 are at 74 expanded so that a cylindrical end 76 of larger diameter results. The inside diameter of the end of the clamp is such that it fits over the end of the housing part 6. Two inward-facing Depressed projections 78 on each clamp half are provided in 4em cylindrical part 76 so that the

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indented projections have an angular distance of 90 °. The projections 78 engage in rectangular ones Holes 80 at the rear end of the housing part 6, these holes 80 also being angularly spaced 90 ° apart. The holes 80 are located between the split spring ring 54 and the end of the housing part i * id the split spring ring itself is arranged relatively close to the rear end of the housing part 6.

The fastening ring 46 is first in the in Pig.2

brought the position shown, in the / the projection 58 is located in the shallow recess 52 when the contact organs be used in the insert body.

After the contact elements have been inserted, the fastening ring 46 turns 180 ° into the position shown in FIG Rotated position so that the contacts are locked in the channels of the insert body, in front of the cable clamps.

The two halves 64, 66 of the cable clamp are then placed on the cable and the screws of the two halves partially tightened. Db protrusions 72 are used for the assembly of the cable clamp to guide and hold the cable. It becomes the clamp

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then onto the rear end of the coupling housing body pushed on so that the projections 78 engage in the holes 80. Then the screws are fully tightened, so that the wires attached to the contact elements of the coupling part are gripped. When the cable clamp is at the rear of the coupling housing, the end of the clamp prevents backward movement of the projection 58 of the split spring ring, so that the fastening ring 46 is not in its loosened position can be rotated when the cable clamp is connected to the housing part of the coupling.

If the installer fails to turn the fastening ring and tries to open the clamp the housing part of the coupling to put on without the projection 58 is sin in the recess 52, so he will reminds of his forgetfulness by the fact that the cable clamp is not properly attached to the housing part of the The coupling can be put on when, according to FIG. 2, the projection 58 is located in the shallow recess 52. When the protrusion 58 is in the relatively shallow recess 52, the other side of the slotted collides The spring ring with the clamp and the clamp cannot be placed axially on the coupling.

The arrangement of the projections 78 and the openings 80

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is in the illustrated embodiment of the invention such that it might be possible under certain circumstances Put the clamp on the housing part of the coupling when the projection 58 is in the relatively shallow recess 52 of the fastening ring 46 is located. Other constructive measures can also be taken in this direction will. For example, the recess 52 can come completely in port case and the width of the fastening ring be enlarged so that the

the recess 50 opposite position results in a greater width. Such an arrangement could be such that it is completely impossible to place the cable clamp on the housing part of the coupling when the projection 58 is in the position shown in FIG.

Figure 7 shows a further embodiment of the invention, in which the cable clamp is designed at right angles, but also from the two complementary parts 64 and 86 consists. The front ends of the cable clamp are similar to the front ends 74, 76, 78 of the previously described embodiment. The embodiment according to FIG. 7 therefore only differs in that the cable clamp runs at an angle between its ends, see above that the ends of the wires can be drawn off at right angles with respect to the axis of the coupling.

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The embodiment of the cable clamp according to the invention is particularly suitable for right-angled arrangements according to 3 * igur 7, since the clamp is attached to the housing part of the Coupling can be applied in any of the four rotational positions.

The cable clamp according to the invention can also be used advantageously in conventional cable couplings known so far, where a rotatable fastening ring is not used to lock the contact elements.

The main advantages of those described in FIGS. 3 and 4 Cable clamps are that the clamps are connected to the cable after the clamps have already been attached to the coupling part and that there is no need to push the cable end through put the clamp through it. The invention is not only applicable to couplings of circular cross-section, but can also be used for couplings that have a rectangular cross-section.

Patent claims:

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Claims (7)

Pat ent claims 1. Coupling for electrical cables with a cable clamp at one end, characterized in that the cable clamp (62; 84 »86) at one end has an inner diameter which is adapted to the outer diameter of the rear end of the housing part of the coupling and that on the coupling part and on the clamp interlocking parts (78,80) are provided and that the coupling (62; 84 _f 86) consists of two halves (64s 66; 84, 86) which can be assembled along an axial central chord, with the Connecting the two clamp halves (64, 66; 84, 86) fastening means (70) are provided. 2. Coupling according to claim, characterized in that that the two halves (64, 66; 84, 86) of the clamp flanges (68) on opposite sides Have edges and the flanges (68) by means of screw bolts (70) the holes in the flanges (68) enforce, are interconnected. 3. Coupling according to claim 1 or 2, d a you r c h 009814/1014 AMP 1869 -Ή - marked that the clamp (62) consists of a straight sleeve and the wires emerging from the coupling shim axially in relation leads to the axis of the coupling part. 4. Coupling according to claim 1 or 2, d a u u r ch characterized in that the clamp (84, 86) is bent at right angles with respect to the axis of the coupling. 5. Coupling according to claim 1 or one of the following, characterized in that the interlocking parts (78, 80) provided on the housing part of the coupling and on the clamp There are protrusions and depressions and the protrusions (78) engage in the depressions (80) when the Clamp is placed on the housing part of the coupling. 6. Coupling according to claim 1, characterized in that that the intertwined Parts (76) of the clamp and the housing part of the coupling are cylindrical. 7. Coupling according to claim 6, characterized in that that the interlocking parts (78, 80) of the housing part of the coupling and the clamp are angularly offset in the same way 0098U / 10U AMP 1869 - 15 - are arranged. = 8. Coupling according to Claim 1 or one of the following, characterized in that, for the purpose of locking: the cortical organs inside the coupling on the side of the housing part of the coupling, movable parts are provided (40, 42, 46) which, if oils Cable clamp (6 ?; 84, 36) on the end of the housing part of the coupling eulg ^ eet ^ t is to be locked in a control device that locks the control elements (28) in the coupling, 9 * Coupling naofe claim β, daciuruh ge Ic e η ϊϊ draw ", ti a ü two radially protruding projections (42) of a disc (30) provided in the interior of the housing detail of the coupling, radially through openings in the housing part (6) and a rotatable one fastening ring (46) iet provided externally on the housing part (b) of the movable disk (30) \ ^f "* r8oM.ebt and a slotted annular spring (54) is arranged on the housing part (6) and dös against a shoulder of the fastening ring ( 46) acts, a projection (58) of the annular spring (54) and two opposing recesses (50, 52) being provided on the fastening ring (46) and the projection (58) engaging in one of the recesses (50, 52) and around a twisting of the fastening ^ · 0098U / 10U AMP 1869 - 16 - ring (46) with respect to the housing part (4) to enable the recess (50, 52) to be pulled out, so that the fastening ring (46) engages in both positions and the cable clamp (62} 84, 86) so in relation is arranged on the ring spring (54) that a return upward movement of the annular spring (54) is prevented. 0 0 9 8 "U / 1 0 1 Blank page