DE1813809A1 - Electrical cable connector, insulating sleeve for this and method for its assembly - Google Patents

Description

"Electrical cable connection piece, Iooling sleeve for this and ancestors to assemble it, "

The present invention relates to electrical cable connectors and, more particularly, to electrical connectors that can be attached to the ends of electrical cables to make a detachable connection between M cable lengths.

Which emerges from the patent literature, the Technology in the field of electrical connectors based on more reliable, detachable and interrelated interlocking fasteners developed, for example, as shown in US Pat. No. 2,477,818 are. The development is now towards the use of preformed Isolierhtilsen, which together can be attached to the end of an electrical cable with the connecting element, as for example in FIG U.S. Patent 3,143,384 is shown. Through the arrival

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Turning the teachings of these prior art publications, repair, replacement, and on-site installation can be undertaken by those companies who deem it necessary or desirable to have means of releasably connecting various lengths of electrical cable. Among other such companies are run such that Schweißarueiteii _f especially in the cases where the actual Schwoissen takes place at a certain distance from the power source for the welding means, as can be in shipyards.

The present invention relates to an improvement in the design and method for assembling an electrical connecting element and a pre-formed insulating sleeve for this on the end of an electrical cable. When producing such arrangements, it is necessary to ensure that a firm connection between the electrical cable and the connecting element is achieved. In addition, it is also necessary to ensure that the insulating sleeve *, which forms part of the arrangement and forms the protection against potentially dangerous electrical contact of the user of the respective equipment with exposed live parts, in its position around the connecting element as well as around the Connection between the connecting element and the conductive strands of the electrical cable is held, so that an adequate protection of the user and the electrical cable line is formed.

The object on which the present invention is based is to create a novel insulating sleeve design, which are combined with an electrical connecting element in the manner just indicated as being desirable can be, so that by using them an effective! * assembly of the sleeve and the connecting element in very can be made much more easily than before

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possible Kar.Be ^ nvrenduu: (ic. present !: Invention i: ird

lüolieriüili ο ^ o. “iiclit, and then lröimei; die iul.'ie, ί u: verb. · '.!, diui.cce] -oweat and there: cable quickly and safely through the. ". u ^ artuouzutei iieiu.rtige-- elements verc.i igt vc / dci ,, 'ic i Co ■ UiUf-O j; n.'. ij don Yerbinduiigi.-clo-iaeirt auGgebiJ de ti '..,

Ug-- Fuelmai. . call the gnlet of elehtj-ißche :; Ycv -. 'BiiK u ■ £; .- • hurry Λν ^Γ θΰ.β that ko: aplcnieirtä: e electrical VerLi :-(. U,.; Gi; clc'i: ie: il e;., Jv. 'eohyel.'id aiii'Οι; ί .gogensesetiiteii Kabeleiidei ..- vo / ii i'tfet word ei- · .. The Voi'rie.htung according to the νοχ-j legendary invention; iot also; .uf dU j> ..i iringu .. :: oi elrtritrciie.c Yate- · - like lull torver!) ii! (Iuiigs-I rush applicable to cable ends.

The accompanying drawings illustrate exemplary embodiments of the present invention. In the drawings are

Figure 1 is a perspective view of an electrical Male connector that has been attached to the end of an electrical cable, with an insulating sleeve that comprises a first embodiment of the present invention, shown prior to assembly with the connector is,

Figure 2 is a perspective view similar to Figure 1, in which the insulating sleeve in its protective position around the electrical Connecting element has been moved,

Figure 3 is separated for the purpose of clarity of illustration The shown end view of the Eundringes molded into the interior of the insulating sleeve shown in FIGS is,

FIG. 4 is a plan view of that shown in FIG Collar ring,

Figure 5 is a side view of the collar shown in Figure 3,

FIG. 6 shows a side view of the in FIGS. 1 and 2 electrical connection element shown in perspective with cTarar. bof ci-tigteui p] elrtri sehcia Xabe3,

9 O 9832/096 B BAD ORI6INM.

FIG. 7 is a plan view of that shown in FIG electrical connector,

Figure 8 is a side view of a second embodiment of the present invention in which an electrical Connecting element and an insulating sleeve with a collar formed therein are shown, the connecting element at the rear End of the sleeve enters this,

FIG. 9 shows a plan view of the electrical connecting element shown in FIG. 8,

FIG. 10 is a side view of a third embodiment of the present invention in which an electrical Connector, an attached cable and a Insulating sleeve with a collar ring formed therein are shown,

FIG. 11 is a plan view of that shown in FIG electrical connector,

Figure 12 is a plan view of the in the insulating sleeve in the embodiment shown in Figure 10 Collar ring, the collar ring being shown separately here for the purpose of clearer illustration,

Figure 13 is an end view of the collar j shown in Figure 12

Figure Ik is a side view of the collar shown in Figure 12, ■.

Figure 15 is a side view of a fourth embodiment of the present invention, in which the connecting element and the insulating sleeve are shown before they are connected to each other,

FIG. 16 shows a sectional view along the line 16-16 in FIG.

FIG. 17 is a plan view of that shown in FIG Collar ring,

Figure 18 is an end view of the collar shown in Figure 15;

Figure 19 is a side view of the collar shown in Figure 15,

FIG. 20 is a side view of a fifth embodiment of the present invention in which a connecting element ^ ^; ■ "909832/0 9 66

and a cable are united with each other and from the Ibolierliülse shown separately, which is shown in step, to show the Dundring located inside the sleeve,

Figure 21 is a plan view of the collar shown in Figure 20,

FIG. 22 is an end view of the thimble shown in FIG it and

FIG. 25 is a side and sectional view of the collar shown in FIG.

As mentioned above, the present lirfiiiduiig relates to the relationship between an electrical Connecting element and a Jaolierhülse fiu * this. It It is known to those skilled in the art that electrical male and female connectors are used by wevce.i, and that by their connection electrical connections between otherwise separate electrical :: cable bead. = are established can. It is deemed unnecessary in the drawings to show both male and female connectors used with the present invention this use is made in the same way with connectors of both types. As a result, there is only one male connector it should be noted that the present invention works equally well with a female connector can be used. It should also be noted that the present invention can also be used with others can be used as the special fasteners shown here.

A first embodiment of the present invention is illustrated in Figures 1-7. An electrical male connection part 10 has a beaded sleeve part 11, which is pressed around an electrical cable 12 in a known manner in order to attach the connecting part 10 to the cable. The connecting part 10 has a front part 13, which is intended to engage with a non

909832 / Ö966 BAD original

shown nut part to be brought, as it is also known. A shaft part Ik of the male part 10 has a larger diameter than the bead part 11 or the front part 13.

A pin 15 protrudes outward from the shaft part 1h. The pin 15 shown has a circular cross-section and has a wall 16 which runs essentially perpendicular to a surface of the connection part 10, closer to the surface of the shaft part ου!. which rises from the front hand 18 to a higher point or platform 19. The way in which the Zapi'eiib 15 works is described below.

An insulating sleeve 22 is provided, you can from a elastic fabric, such as Neoprene exist, although a stiff insulating material could also be used. The sleeve 22 has a bore extending through it in the longitudinal direction and comprises a Dund ring 25 which extends into the interior the insulating sleeve 22 is shaped so that it surrounds the bore. The collar 23 is preferably made of metal, for example aluminum, and is molded into the sleeve 22 to be connected with the pin 15 to form a device through which, v / eiuj the sleeve 22 has been moved into its position in which it forms the insulating protection for the connecting element 10, the Sleeve is held in this protective position with respect to the connecting element.

This is achieved in that the collar 23 is designed so that it holds the pin 15 when this is in the collar has been moved. In Figures 3 to 5 are Elevation views of the collar 23 shown in the figures

1 and 2 is illustrated in perspective. It can be seen that the collar shown in Figures 3 to 5 in practical application in the sleeve 22 in the in Figure

2 is shaped. The collar-23 has a recess 2k for receiving the pin 15, and

between this recess 2k and his front hand 25, the collar 23 has a concave raised locking part 2b. The locking part 26 has its greatest concavity at an edge 27 and is inclined from the hand 27 in the direction of the recess 24 to an edge 28, where it has the smallest concavity. A hole 29 is. provided in the collar 23 and serves to hold the collar 23 after the sleeve ii: dies ex ^{1 has been formed.}

Reference will now be made to FIG. 1 and a description will be given of how the sleeve 22 and the connecting element IO are inserted into the in Figure 2 are brought to each other relationship. The sleeve 22 wixd opposite the pin 15 so arranged that the inclined surface 17 of the pin and the maximum concavity 27 of the locking part 26 are opposite one another. A Button 30 is formed on the outer surface of the sleeve 22 immediately above the locking part 26 and forms an outer one Means for aligning the lock. After the cable 12 is pressed into the bead part of the connecting element has been, from which the relationship shown in Figure 1 between the connecting element and the cable results, the sleeve 22 can be moved towards the isolating position by the operator holding the sleeve on the cable pulls along. As a result, the collar 23 is moved in the direction of the pin 15. The locking part 26 and the pin 15 can be aligned by aligning button 30 and pin 15. aside from that can be a guide along the inner bore of the sleeve can be provided in order to guide the pin 15 so that it comes under the locking part 26. When the edge is 27 of the locking part 26 reaches the pin 15, the front edge of the inclined surface 17 comes under the edge 27 the lock.

When the sleeve 22 continues in this direction to the enclosure of the connecting element 10 is moved, the Arretierungstf'il runs 26 up on the pin 15 until the platform stop

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of the pin presses the edge 28 with the smallest concavity of the locking part 26 to the outside. When the sleeve 22 moves further, the pin 15 finally moves into the recess 24. When the pin 15 reaches this position, the locking part 2 springs back into the starting position, and its edge 28 then prevents the pin from being pulled out of the Recess, whereby the connecting element '10 and the sleeve 22 are locked together so that neither a rotary movement nor an axial movement can take place between the connecting element 10 and the sleeve 22. So that the locking part 26 can spring back into the locking position, the The collar ring.23 and its locking part 26 must be made of resilient material. It has been found that heat-treated aluminum with the tempering designation T4 is suitable for this purpose Locking part temporarily for example by inserting a screwdriver underneath and pushing upwards is bent upwards, whereupon the pin can be pulled out of the recess 24.)

Another type of application of the same erfi ndungsgemäßen parts, as shown in Figures 1 to 7, _s is illustrated in FIG. 8 and 9 In this type of application of the parts according to the invention, the cooperative relationship between the connecting element and the sleeve is achieved in that the connecting element is drawn into the sleeve through the smaller end thereof. A connecting element 33 'which has a corrugated tube part 34 with which it is pressed onto a cable 35 also has a shaft part 36. A pin 37 protrudes from the shaft part 36 and has a wall 38 which extends substantially perpendicularly from the shaft part 36 upwards. An inclined surface 39 rises from a leading edge 40 to a platform 41 of the pin.

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In the sleeve 46 shown in Figure 8, which with the connecting element 33 should work together is a collar 47 embedded by molding, which is formed in the same way is like that in the first embodiment shown in Figures 1-7, with the difference that it is so in the sleeve 46 is arranged so that its concave raised locking part 48 faces the smaller end of the sleeve is. The locking part 48 rises to an edge 49 with the greatest concavity from an edge 50 with the smallest concavity in the vicinity of the recess 51 receiving the pin. A hole 52 in the collar 47 in turn enables Jj | the sleeve material flows in and around the collar 47, which ^

contributes to the fact that the collar is fixed in the sleeve. A button 53 is on the outside of the sleeve 46 immediately molded over the locking member 48 and forms a simple Means for aligning the locking part. The connecting element 33, which has been pressed against the cable 35, can be inserted into the sleeve by means of tools known in the art pulled through the smaller end 56 thereof, and the pin 37 can be guided to the locking strip 48 by aligning the pin 37 and button 53 with one another. The inclined surface 39 of the pin 37 extends under the concave raised locking portion 48 until the platform 41 raises the edge 50 with the smallest concavity and φ

then enters the recess 51, whereupon the increased The locking part 48 springs back into the starting position in order to prevent the pin 37 and thus the connecting element 33 from being pulled out of the sleeve 46.

Another exemplary embodiment of the present invention is illustrated in FIGS. 10-14. They show Figures IO and 11 the relationship of the connecting element and of the sleeve to one another, while FIGS. 12-14 show the details of the collar used in this embodiment. A connecting element

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has a bead portion 61 in which a cable 62 is fastened by pressing, and a shaft portion 63. A pin 6h protrudes outward from the shaft portion 63, and its peripheral wall 65 extends substantially perpendicularly from the shaft portion 63 upwards.

A sleeve 70 is formed with a bore therethrough, and a collar 71 is molded into the body of the sleeve so as to surround the bore of the sleeve. The collar 7i is shown separately in FIGS. 12 to 1h for the purpose of clear illustration, but it should be pointed out that this ring is not used separately, but only when it is embedded in the sleeve. The collar 7 ″ i has a recess 72 for receiving the pin 6h and a front edge 73. That part of the collar 71 * which is located between the recess 72 and the front edge 73 is bent upward to form a raised locking part Jh A hole 75 in the O-ring 71 is provided to assist in securing the collar in the sleeve when the collar is embedded in the sleeve. The collar 71 is cut through at 76 across its entire width.

As can be seen from FIG. 10, the cable 62 and the sleeve 70 can be gripped and the sleeve can be pulled in the direction of the connecting element 60 by hand. A button 77 or some other external alignment means, which is provided on the outside of the sleeve 70 immediately above the location of the raised strip lh , forms a means for aligning the sleeve with the connecting element, so that when the sleeve 70 is moved in the direction of the Connecting element 60 of the raised strip lh in the collar 71 can be aligned on the pin 6h. When the sleeve 70 and the connecting element 60 are brought together, the pin 6h moves under the raised locking part lh ic the recess 72. Then the raised

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BATH

Ax-re tie approximately part 7k a force directed downwards can be exerted by exerting pressure on the button 77, for example by clamping and compressing the sleeve in a vice or by hammering the

77, and thereby the locking part Ik is down

deformed to prevent the pin 6k from being pulled out of the! To prevent opening 72 and thereby achieve a firm connection between the connecting element 60 and the insulating sleeve 70: .υ. It has been found that cold rolled steel is a btoxf which deforms in the appropriate manner and is therefore suitable for the present application.

Just as it was possible to use the parts shown above in FIGS. 1-7 for an arrangement in which the connecting element passes through the larger end of the sleeve, an arrangement in which the connecting element passes through the smaller end of the sleeve reaches into this, as shown in Figures 8 and 9 , the individual parts shown in Figures 10-Ik can also be arranged so that the connecting element passes through the smaller end of the sleeve into this. It is therefore not considered necessary to also illustrate this possibility in the drawings.

In the embodiment of the present invention shown in FIGS. 15-19, a connecting element 80 is fastened to a cable 81 by pressing a bead part 82 against it. The connecting member 80 has a shaft part 83, and a recess Qk is formed in this shaft part. The walls of the recess 8k are essentially perpendicular to the surface of the shaft part 83, as is shown most clearly in FIGS. A collar 85 is arranged around an inner bore 86 which runs through an insulating sleeve 87. A locking part 90 is formed on the collar 85 by incisions 91 through the wall of the collar 85 . A pin 92 is on the collar

909832/0966 bad oniai _NAt

ring formed and has an inclined surface 93 as well Faces 94, 95, 96 and 97, all essentially run perpendicular to the inner wall of the collar 85.

When the connecting element 80 in the interior of the sleeve 8th? is pulled, meets the inclined surface 93 of the pin 92 on an inclined surface 98 of the connecting element, whereby the locking part 90 is raised. If that The connecting element 80 is then drawn further into the sleeve 87 is until the pin 92 reaches the recess 84, the pin 92 then falls into this recess, and the locking part 90 springs back into its starting position. Since the inner walls of the recess 84 run vertically and so do the surfaces 94 to 97 of the pin 92 are perpendicular, it can be seen that the connecting element and the sleeve 87 are united with one another so that that neither axial movement nor rotational movement between them is possible.

In the last embodiment of the present invention, which is illustrated in FIGS. 20-23, a connecting element 103 is shown which has a shaft part 104 has, from which a pin part 105 protrudes. The pin 105 has a wall 106 that is substantially perpendicular runs to the shaft part 104. A groove 107 is in the Shaft part 104 is formed and has an inclined surface 108 and a vertical surface 109. A collar 113 is arranged around an inner bore 114 * which is passed through a Sleeve 115 runs. The collar 115 has a recess 116 and a locking part 117 which is formed by incisions 118. The locking part 117 has a pressed-in tongue 119 on.

When the connecting element 103 is inserted into the sleeve 115 is, brings it into the interior of the sleeve until the recess 116 reaches the pin 105, where then with further Movement of the connecting element 103 in the sleeve 115 of the

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The pin enters the recess 116. In the meantime, when the connecting element 103 moves in,... The sleeve 115 the pressed-in tongue 119 is raised on the locking part 117, when it reaches the inclined surface 120 of the connecting element 103. During the further movement of the connecting element in the sleeve the tongue 119 passes into the groove 107. It can then be seen that the axial movement between the sleeve and dome connecting element the abutment of the tongue 119 on the vertical wall IO9 and by planting the rear wall of the recess II6 on the Pin 105 is prevented. The engagement between the J |

Pin and the recess also prevents the Drehbeweguug between the sleeve and the connecting element.

While above particular embodiments of the invention have been described, it will be apparent that changes and modifications to the illustrated embodiments can be made which still fall within the scope of the present invention.

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Claims (17)

PatentanniG ldimg ι "Electrical cable connector, Insulating sleeve for this and its assembly method. " ΡΑΤΕΪΓΤΑΚ S Ρ; I U CHE. Insulating sleeve for an electrical connection part with locking engagement means formed thereon, characterized ge by a tube (22) made of insulating material with a liohruug passing through the tube and a collar (23) with a locking part (26) arranged in the sleeve around the bore Engagement with the locking engagement means (15) formed on the connecting element (10) can be brought. 2. Insulating sleeve according to claim 1, characterized in that the locking engagement means of the electrical connecting part consists of a pin (15) which protrudes from the connecting part, and that the collar has a recess receiving the pin (2 ^l i) , and that the locking part (26) is arranged in the collar in the vicinity of the recess (2h) , so that the electrical connection part (10) and the insulating sleeve with one another 909832/0966 ΘΑΟ ORIGINAL can be united and the rotation and axial movement between them is prevented. 3. Insulating sleeve according to claim 2, characterized in that that on the outside of the sleeve just above the locking part of the collar ring an alignment button (30) is formed 4. insulating sleeve according to claim 2, characterized in that that the locking part (26) is resilient and increases in the axial direction of the sleeve from the recess (24) is. 5. Insulating sleeve according to claim 2, characterized in that the recess (24) has an open side and the Locking part (26) has an edge (28) opposite the open side of the recess is arranged so that the pin (15) of the connecting part located in the recess (OK) is secured against being pulled out of the sleeve. 6. Insulating sleeve according to claim 2, characterized in that the locking part (74) is increased so that the pin (64) can be moved freely under it, and that M the locking part (74) is deformable so that, by its deformation, the pin in the pin-receiving recess (72) is secured against being pulled out. I. 7. insulating sleeve according to claim 1, characterized in that the locking engagement means on the electrical connection part (80) from a recess (84) in the connection part exists, and that the locking part (90) of the collar (85) consists of a pin (92) formed on the collar, which is inserted into the recess (84) of the Can get connecting part, whereby the electrical 909832/0966 Connecting part and the insulating sleeve can be combined and the rotation and axial movement between them can be prevented. 8. insulating sleeve according to claim i, characterized in that that the locking engagement means of the connecting part (103) consists of an annular groove (107) having a substantially has vertical wall (109), and that the connecting part further has a zapici, (105) protruding from it, wherein the collar (ll3) with a receiving the pin Recess (II6) is formed and the locking part (119) is arranged so that it is substantially simultaneous with the entry of the pin into the receiving the pin Recess penetrates into the annular groove (107) when the sleeve (115) and the connecting part (103) are put together, wherein the substantially vertical wall (109) of the annular groove in the connecting part is arranged so that it can be pulled out prevents the locking device after assembly, whereby the connecting part and the sleeve together can be united and rotation and axial movement between them is prevented. 9. Electrical connectors that engage with a Insulating sleeve can be brought, in which a collar is arranged with a locking part, characterized in that that the connecting part (10) ein.Arretierungseengmittel (15) has at least one wall that is in runs substantially perpendicular to a surface of the connecting part. 10. Electrical "connecting part according to claim 9 _t, characterized in that the locking engagement means consists of a pin (15) which protrudes from the connecting part * 909832/0986 : «'! ■ , ι !'"Iniini; i: 'i <yH, ij! | Iü i | i 11. Electrical connector according to claim 9, characterized in that the pin has an inclined upper surface (17). 12. Electrical connector & part according to claim 9, characterized characterized in that the locking engagement means consists of a Recess (34) i,.; the connection part consists. 13. Electrical connection part according to claim 9, characterized in that the locking mechanism consists of an annular groove (107) formed on the connection part. 3k 14. Combination of an electric ?! Connection part rait an insulating sleeve for this, characterized in that the electrical connection part (Lö-) has an engagement steep (13) for electrical engagement with a correspondingly designed other electrical connection part, a holding and fastening part (ll) for holding and fastening an electrical Cable (12) in the connecting part, and a locking engagement means (15) which has at least one wall which is substantially perpendicular to a surface of the connecting part, and that the insulating sleeve consists of a tube (22) of insulating material, through the ^ one Internal bore extends, and there is a collar (23) in the M sleeve disposed around the bore and having a locking portion (26) intended to engage the locking engagement means formed on the connecting portion. 15. Method of assembling an electrical connector with a locking engagement mechanism which has at least one and which are essentially perpendicular runs to a surface of the connecting part, an insulating sleeve, which comprises a collar arranged in the interior, which has a locking part which is used in 909832/0966 Engagement with the detent engagement means on the connector to be brought, and an electrical cable, characterized in that one first of all the connecting part and connects the cable together and then moves the insulating sleeve to a position in which it connects the connector surrounds and engages the locking portion of the sleeve with the locking engagement means of the connector stands. 16. The method of claim 15, wherein the collar is a has a pin receiving recess and the detent engagement means on the connecting part consists of a pin protruding from the connecting part, thereby characterized in that the pin is moved into the pin receiving recess before the pin engages the Arresting part of the sleeve. 17. The method according to claim 15 »characterized in that the locking engagement means consists of a recess in the connecting part. 909832/0966 Blank page