DE2855685A1 - ELECTRIC CONNECTOR WITH PANELED FRONT PANEL - Google Patents

Description

PRIORITY: January 9, 1978 - No. 868,216 - U.S.A.

The invention relates to an electrical connector faced front which can be manufactured cheaply and is safe to use.

Electrical connectors, particularly plugs, come in two types; electrical plugs with live (live-front) and blinded (dead-front) fronts. With the plugs with The current-carrying front are the screws for attaching the cable-shaped conductors to the connections via the face of the Connector or plug accessible. After tightening the screws, the face is usually covered with a removable insulating washer covered. This type of connector has few parts,

909829/0606

(only PA Dipl.-Ing.S. Stoeger)

is easy and cheap. However, it requires great care in wiring and maintenance to ensure safety. A known danger of such plugs is that the removable insulating washer, which covers the end face, can be damaged or lost; this will expose the live connections. In the case of plugs with a faced face, a heavy insulated base plate is provided on the front of the plug; the connection screws are accessible from the rear. The wiring area is usually completely enclosed after wiring. Such plugs can be adapted to major changes in wiring or maintenance without affecting safety or operation. However, known electrical connectors of this type generally have more parts and are more expensive to manufacture than live face connectors.

One of the many ways of connecting insulated conductors to the connections of wiring devices is the so-called insulation displacement technique, in which a conductor is pressed into a connection slot with the aid of wire cutters so that the slot cuts through the insulation and makes electrical contact with the conductor wire. This technique requires skilled operators and a suitable access to the terminal slots to allow the use of hand-vu-use pliers.

Her connector according to the invention is one with a faced front, making use of a particularly suitable and effective combination of hinged side covers, locking means and insulation displacement connections. According to one embodiment of the invention, the connector or plug has a housing with a paneled base plate and a pair of side covers, the front ends of which are articulated to the base plate by articulated webs. The base plate and the side covers are molded in one piece as an electrically insulated structure. The base plate carries the connections,

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28556SS

such as a pair of power connectors and an end connector, the wired ends of which extend to the base plate. The connections can be protruding plug contacts, such as a pair of connecting blades, a grounding pin, which extend through openings extend in the faced front; the connections can also be counterpart contacts, which accept plug contacts, which are located through openings in the veneered base plate; however, both types of contacts can also be provided will. Furthermore, locking sections are integrally molded with the base plate and the side covers, which engage when the plug is closed; the rear ends of the side covers are attached to each other, wherein the locking sections allow relative movement between the side covers and the paneled base plate prevent, the holding effect being supplemented or even, if necessary, replaced by the articulated webs.

The electrical cable can be connected to the connections during pivoting When closing the plug, the side cover will be wired by cutting the ends of the connectors into the shape of the Insulation displacing slots come, which open in the direction of one of the side covers. The perfectly insulated Conductor wires of the cable are placed on the open ends of the connection slots; the ladder is pushed into the slots, when the side cover is closed opposite the open ends of the slots, by means of pusher collars or -projections, which are made in one piece with the side cover and in a separate place with respect to the connection slots are arranged. The connection slots can run along an arc, the center of which is located on one of the joints, around the To facilitate isolation displacement. The open ends can be staggered so that one of the cable conductors is pushed into the slot before the other. The veneered base plate can be partitions surrounding the wired portions of the terminals for electrical contact with each other and beyond nor to prevent the connection slots from being undesirable

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-12- 285568S

be widened when the insulated conductors are pushed in. The locking means, which allow a relative movement between the side covers and the clad base plate when the connector is closed, can integrally molded parts to keep closed Position to lock the side cover, which is not opposite the open ends of the connection slots, so that the permanently closed side cover is used as a projection or collar on which the cable ladder is placed can be before the other cover part is closed, go that in this way the insulation-displacing connection is made will.

The invention provides an electrical connector, in particular a plug with high strength, with a one-piece housing veneered front created, the housing of which completely isolates the wiring area of the connector; he can easily wired and assembled; Machining fluctuations in the screw-type terminal wiring and the stripping of the conductor ends at such connections are eliminated; a housing is also made up of a base plate and hinged side covers created which locks in the closed position and also remains locked, even if the holding influence of the articulated webs fails; the connector is particularly simple and inexpensive to manufacture, assemble, and assemble use.

Several exemplary embodiments of known connectors according to the invention are shown in the drawing, which are described in more detail below to be discribed; it shows:

Pig. I is a side view of an electrical connector, FIG. 2 is a front view of the connector according to FIG. 1,

Fig. 3 is a sectional view of the connector according to Fig. 1 along line 3-3 in Fig. 2,

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FIG. 4 shows a sectional view of the connector according to FIG Line 4-4 of Fig. 2,

FIG. 5 is a plan view of the plug according to FIG. 1 in the open position.

6 shows a side view of the connector according to FIG. 1 in the open position,

Fig. 7 is a plan view of another plug in the open position _}

8 shows a side view of the plug according to FIG. 7 in the open position,

9 is a front view, partially in section, of the plug according to FIG. 7 in the closed position;

FIG. 10 is a perspective view of a protective cover for a plug according to FIG. 7;

11 is a side view of a first embodiment of the invention in closed position,

Fig. 12 is a sectional view taken along line 12-12 in Fig. 11,

13 shows a plan view of the plug according to FIG. 11 in the open position,

Fig. I ² J is a side view, partly in section, along line 14-14 in Fig. 13,

15 is a sectional view along line 15-15 in FIG. 14, FIG. 16 is a sectional view along line 1βτΐ6 in FIG. 14,

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ORIGINAL INSPECTED

Pig. 17 and 18 views, partly in section and partly

laterally of sections of a plug according to Fig. 11,

19 is a partial sectional view taken along line 19-19 in FIG Fig. 13,

FIG. 20 is a greatly enlarged view similar to that in FIGS. 14 and

21 shows a view similar to FIG. 20, but in the closed position.

The same reference numbers refer to the same parts in the different figures.

In the embodiment according to FIGS. 1 to 6 (US Pat. No. 4,010,999; DE-OS 2 624 537) has a one-piece electrical connector 10 with high strength on a faced end face. The Stekker 10 has a plug body 11 and two connecting blades 13 and 13; it is used to establish an electrical connection between a cable 17 and a conventional connection socket, not shown. The plug body 11 has a part 20 with a blinded front and two side covers 40 and 60, through which the connecting lamellas 12 and I3 passed are. The side covers 40 and 60 are articulated to the part 20 by articulated webs 15 and 16; the whole oteckerkkörper 11 is made in one piece and consists of an insulating material such as nylon with high strength.

As can be seen from Fig. 3 to ^% 6, in which details of the structure of the plug 10 are shown, the part 20 has a right-angled bottom plate 21 which forms a smooth base or front of the plug with the exception of the two elongated notches 22 and 23 which are located in the middle on the side edges of the base plate 21 next to the side

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- 15 - 285568S

covers 40 and 60 are provided. A protruding splash 24 extends at the right-angled edge of the base plate 21. Two more protruding Plansche 25 and 26 limit together with the Edge flange 24 has two longitudinal grooves 27 and 28 which run parallel to the side edges of the base plate 21.

A block 30 protruding from its central inner area is formed on the base plate 21; a right-angled groove 31 surrounds the sides of the block 30 between the latter and the. Flanges 24-26. The block 30 serves as an attachment and support element for Connection lamellas 12 and 13, which are arranged in a press fit in openings extending through the block 30 and the base plate 21 integrally connected therewith. The upper connection ends the power lamellae 12 and 13 are provided with clamping screws 18 and 19, which are easily accessible when the electrical Plug, as in Pig. 5 and 6 is open to facilitate wiring to the wire conductors 32 and 33 of the cable 17. An "H" shaped insulation piece 34 is integral therefrom molded block 30 from it and is between the upper terminal ends the connecting lamellas 12 and 13 are arranged.

From Fig. 4 and 5 it can be seen that the right-angled groove 31, which is delimited by the block 30 and the planes 24-26 and serves to receive the lower end of an optionally rectangular sealing compound-insulation sleeve 35. The sealing compound insulating sleeve 35 surrounds the upper ends of the connecting lamellas 12 and 13, their associated clamping screws 18 and 19 and all uninsulated or stripped sections of the wire conductors 32 and 33 in addition to their connection to the clamping screws 18 and 19. The sleeve 35 is secured with a sealing or potting compound (not shown), which hardens in order to form a protective, moisture-proof wiring connection between the wire conductors 32, 33 and the connection lamellas 12, 13. The sealant insulation sleeve 35 and the sealant itself may be omitted and are not necessary for the construction of the electric plug 10 with veneered front,

-ν · .--- .. / ,. ν «.... ■«, -. 909829/0606

although we care about safety and ease of use can also contribute.

The plug body 11 of the plug 10 includes side lid ¹ IO and 60, which are connected to the front part 20 via hinge webs. 15 and 16 As can best be seen from FIGS. 5 and 6, the joint webs 15 and 16 are each formed by two thin, aligned, flexible webs which flank the cutouts 22 and 23 in the base plate 21 of the part 29 and are located between the base plate 21 and the side covers 40 and 60 extend, as a result of which the latter can be pivoted with respect to the front part 20.

The side cover 20 has a front wall 41 which - as can be seen from FIG. 2 - forms the end face of the plug 10. A concave section 42 of the front wall 4l acts with a similar concave section 62 on the wall part 61 of the side cover 60 together, which forms the rear of the plug 10 to enable the detection of the assembled plug for insertion into electrical connection sockets and to facilitate pulling out (Fig. 2).

The side cover 40 also has a wall 43, which in the runs substantially at right angles to the front wall 4l and extends around the three 'sides. The wall 43 essentially forms one half of the sides and top of the composite Connector 10, as can be seen from FIG. In that portion of the wall 43 which is the top of the composite Forms connector 10, a semicircular opening is provided which is adapted to the cable 17.

The wall 43 has a shoulder 45 which is approximately extends at the inner edge thereof with the exception of the area of the semicircular opening 44. The shoulder 45 becomes partial limited by two blocks 46 and 47, which are also formed on the front wall 41. There are two cable clamping teeth 50 and 51

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- 17 - 2855693

from the inner surface of the front wall 41, are integrally connected to it and run diagonally between the two blocks 46 and 47. The surfaces of the cable clamping teeth 50 and 51 are concave.

Two elongated openings 52 and 53 extend between the blocks 46 and 47 and the front wall 41 and 41 formed thereon flank the cable clamping teeth 50 and 51. The openings 52 and 53 are preferably next to the front wall 41 - as is best can be seen from Fig. 3 - sunk. Two additional right-angled Openings 54 and 55 each extend partially between blocks 46 and 47 from shoulder 45 of the side wall 43 off.

The side cover 40 also has a right-angled flange 56 which protrudes from the inner surface of the front wall 41 between the two webs which form the joint 15; the flange 56 fits snugly in the cut 22 in the part 20 when the electrical connector 10 is fully assembled (Fig. 4). Two additional flanges 57 and 58 extend from the ends of wall 43 and are received in grooves 27 and 28 of part 20 when electrical connector 10 is fully assembled (Fig. 3),

As stated above, the side cover 60 is formed by a rear wall 61 with a concave section 62. The side cover 60 is connected in an articulated manner to part 20 via the hinge web l6. A substantially perpendicular from the rear wall 61 protruding Wall 63 extends over three sides of the latter and is shaped to cooperate with wall 43 of side cover 60, around the sides and top of the composite Connector 10 to form. A semicircular opening 64 is made through the wall 63, opposite the opening 44 in the wall 43, limited so that the two openings 44 and 64 form a passage for the cable 17. On the inside edge of the wall 63, two flanges 65 and 66 and two blocks 67 and 68 are integrally formed . A shoulder 69 runs along the outside of the

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ORIGINAL INSPECTED

Wall 63 next to flanges 65 and 66 and blocks 67 and 68.

From the rear wall 6l are two cable clamping teeth 70 and 71, which are formed on the latter and extend diagonally between the blocks 67 and 68. The surfaces of the cable clamping teeth 70 and 71 are concave; it should be noted that the diagonal direction of the cable clamping teeth 70 and 71 is that of the cable clamping teeth 50 and 51 of the side cover 40 runs in opposite directions, so that the two sets of cable clamping teeth cross each other, when the connector 10 is assembled.

Two openings 72 and 73 are in blocks 67 and 68, respectively are provided and flank the cable clamping teeth 70 and 71 · Two prongs 74 and 75 protrude from flanges 65 and 66. Of the Side cover 60 also includes a flange 76 which extends from the inner surface of the rear wall 61 between the webs of the joint l6 protrudes and is located next to the incision 23 in the front part 20; the flange 76 is received appropriately in the incision 23, when the electrical connector 10 is assembled. Two additional flanges 77 and 78 are on the connecting ends of the Viand 63 are provided and are received by grooves 27 and 28 (Fig. 3).

The electrical connector 10 is assembled in such a way that the ends of the two wire conductors 32 and 33 of the cable 17 are stripped first and are connected to the upper ends of the connection lamellas 12 and 13 by the clamping screws 18 and 19. The seal mass-insulation sleeve 35 and the sealant are when {-, if desired, applied to the wire connection. After completion the wiring, the side covers 40 and 60 are swiveled together, so that the plug 10, as shown in FIGS. 1 to 4, is assembled. The flanges 65 and 66 of the side cover 60 rest on the shoulder 45 of the side cover 40 and are located within the wall 43. Similarly lays the upper portion of the wall 43 fits closely against the shoulder 69. This overlapping engagement between the side covers 40 and 60 leads to a dust-free interior of the plug 10 and prevents the ingress of foreign bodies.

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ORIGINAL INSPECTED

The tops of blocks 46 and 47 are supported on the surfaces blocks 67 and 68. Prongs 74 and 75 of side cover 60 are received in openings 54 and 55 of side cover 40; by this mutual engagement, the side covers UO and 60 are held in alignment when the cable clamping teeth 50, 51, 70 and 71 grasp the cable 17 (FIG. 4), so that any stress on the wiring connections is prevented will. The through openings 52 and 53 in the side cover 40 are aligned with the partial openings 72 and 73 in the blocks 67 and 68 of the side cover 60; the two self-tapping screws 80 and 8l are screwed into the openings so that the side covers 40 and 60 are firmly held together.

As mentioned above, the flanges 56 and 76 are snugly from the cuts or notches 22 and 23 of the front panel 20 outside; the resulting mutual engagement leads to a strength in the longitudinal direction between the two Lids 40 and 60 and the front part 20 of the plug 10. Therefore, by the interaction of the flanges 56 and 76 and the Incisions or notches 22 and 23 eliminate any longitudinal stress that would otherwise be effective on the joint webs 15 and 16 would be when the side covers 40 and 60 are grasped to pull the plug 10 out of a junction box. In Similarly, the flanges 57 and 77 are received in the groove 28 in the front part 20; the flanges 58 and 78 are in the groove 27 of the front part 20 (Fig. 3) to avoid any lateral stress between the side covers 40 and 60 and the front part 20 repeal.

When assembling the plug 10, it may be desirable to put a rubber sleeve (not shown) around the cable 17 between the insert semicircular openings 44 and 64; this rubber sleeve can be used alone or in addition to the sealing compound insulation sleeve 35 and the sealant can be used.

The electrical connector 10 therefore has all the safety advantages of such a connector and is particularly easy to connect.

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wires, extremely strong when assembled, dustproof and moisture-proof.

With reference to FIGS. 7 to 10, a second embodiment of a plug 100 with a covered front will now be described. The plug 100 consists essentially of a plug body 101 (FIG. 7), two connecting blades 102 and 103 and a grounding pin 10 ¹ I. The plug 100 can be used to establish an electrical connection between a cable 113 with three wire conductors 114-116 and a grounding socket (not shown) lie. The plug body 101 has a paneled front part 120 and two side covers I ¹ IO and 160, which are hinged to the former via hinge webs 110, 111. The entire plug body 101 consists of insulating material, for example nylon.

The front part 120 has a base plate 121, the outer surface of which forms a smooth, insulating surface or front of the plug 100. Two parallel grooves 122 and 123 run in the base plate 121 near the side edges thereof. A thicker central portion 124 of the front part 120 is at the The base plate 121 is molded on and serves as a support and holding block for the connecting lamellas 102 and 103 and the grounding pin 104. For this purpose, there are two right-angled openings 125 and 126 and a U-shaped opening 127 in the central section 12'I and the associated base plate 121 is provided to accommodate the two terminal strips 102 and 103 and the ground pin 104. Each opening 125-127 is preferably provided with a sealing lip, e.g. a sealing lip 128 of the opening 125, which extends laterally extends into the opening next to the bottom surface of the base plate 121 .

The connecting lamellas 102 and 103 and the grounding pin 104 are pushed through the openings 125-127 and are held there by integrally molded barbs; for example, the ground pin 104 is held in place by a barb 108 (FIG. 8). The upper ends of the connecting lamellas 102 and 103 and the

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extension pin 104 are each with clamping screws 105 to 107 for
Wiring with the three wire conductors 114-116 of the cable 113 is provided. An insulating piece 129 projecting in one piece from the central section 124 of the front part 120 serves to isolate the connecting lamellas 102 and 103 of the grounding pin 104 and the associated clamping screws and all uninsulated sections of the wire conductors lying in the vicinity with respect to one another.

Two dowels 130 and 131 protrude laterally from one side of the front part 120. These D '''"-e 130 and 131 are arranged between the connecting lamellas 102 unu j ...,., Cunje and on the
The tip of the thick central section 124 and the insulating piece 129 of the front part 120 are integrally formed. The two dowel pins 132 and 133 protrude laterally from the opposite side edge of the front part 120; they are also formed on the thick central section 124 and on the insulation piece 129. The dowel pins 132 and 133 flank the upper end of the ground pin 104 and its associated clamping screw 107. The front part 120 further has an edge flange 135 and an associated groove 136 which lies between the flange and the thick central section 124. The flange 135 and the groove I36 extend along the edge of the thick central portion
124 and are raised so that they are above the dowel pins 130-133
protrude.

The side cover 140 has a wall 14l which forms the rear side of the assembled plug 100 (FIG. 9). A
(Steering web 110 is formed by a thin web of the plug material3, which is connected in one piece to both the rear wall 14l and the front part 120, whereby an articulated connection between the latter and the side cover 140 is created.

A U-shaped wall 143 protrudes substantially perpendicularly from the edge of the rear wall l4l along three sides to substantially one
Half of the top and sides of the assembled plug 100 to form. The wall 143 defines a semicircular one

909829/0606 bathroom ORIGINAL

Opening l44, the passage of the cable 113 and a surrounding Sealing collar 109 is used. The top of the wall 143 has a flange 1 * 15 running along its inside; a shoulder 146 near the flange 145 is longitudinal the outside of the wall 143. Adjacent to the flange 145 are two additional flanges 147 and 148, which are to the side of the ends protrude from wall 143 (FIGS. 7 and 8), aligned with grooves 122 and 123 of front part 120.

Two parallel cable clamping teeth 150 and 151 run diagonally between the legs of the U-shaped wall 143 next to the semicircular opening 144. The cable clamping teeth 150, 151 are integral with a thickened portion 152 of the rear wall 141 tied together; Reinforcing ribs 153 can also be provided in connection with the cable clamping teeth. Two openings 154 and 155 extend partially through the side cover 14o in the thickened edge portions of the wall 143 which flank the cable clamping teeth 150, 151. From the opposite Legs of the U-shaped wall 143 extend two prongs 156 and 157 up.

The rear wall 141 of the side cover 140 has two openings 158, 159, which receive the dowel pins 130 and 131 in a snug fit when the plug 100, as indicated in FIG. 9, is composed.

The side cover 16O is similar to the side cover 140 and has a Wall 161 which forms the front of the assembled plug as shown in FIG. The side cover 16O is articulated to the front part 120 by means of an articulated web 111. A protruding U-shaped wall I63 runs along three Sides of the rear wall I6I and essentially forms the other Half of the top and sides of the assembled connector 100. The wall I63 defines a semicircular opening 164, which cooperates with an opening 144 in the wall 143 to provide the passage for the cable II3 and its sleeve IO9

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to build. The top of wall 163 defines a flange and shoulder 166; the flange I65 is on the outside of the Wall 143 placed while the shoulder I66 on the inside right next to it. Two additional flanges 167 and 168 protrude laterally from the ends of the U-shaped wall 163 as shown in FIGS. 7 and 8, and are aligned with the grooves 122 and 123 of the front part 120.

Two parallel cable clamping teeth 170 and 171 run diagonally between two blocks 172, 173 which are each integrally connected to the viand I63 and the front wall 16I of the side cover. The cable clamping teeth 170 and 171 are diagonally opposite the cable clamping teeth I50 and I5I of the side cover I ¹ IO so that the two sets of cable clamping teeth cross when the connector is assembled. The openings 174 and 175 are located in the blocks 172 and 173, respectively, and are countersunk in the outer surface of the front panel 161 (Fig. 8). Two additional openings 176, 177 are provided in blocks 172 and 173 next to the legs of the U-shaped wall 163. The front wall 16I also delimits two openings 178 and 179 which receive the dowel pins 132 and 133 when the plug is assembled.

When the connector 100 is assembled, the wire conductors 114-116 of the cable 113 are first connected to the terminals 102 and 103 and the grounding pin 104 is connected via the terminal screws IO5-IO7. The wiring is easily established with the connector 100 in an open position (Fig. 8).

Optionally, a substantially rectangular sealant insulation sleeve 180 - as shown in FIG. 10 - can be slid over the upper ends of the terminal lamellas 102, IO3, the grounding pin 104 and the associated wire connection and surround the latter. The sealing compound insulation sleeve has a groove 18l on its lower edge which receives the edge flange 135 of the front part 120 . The inner wall of the sleeve I80

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is received in a groove I36 next to the flange 135. Of the The lower edge of the sleeve I80 is provided with cutouts 182, I83 and 184 Mistake; the cutout I82 fits tightly over the closely spaced ones Dowel pins 130 and 131. The cutouts I83 and 184 are adapted to the dowel pins 132 and 133 located at a greater distance from one another. A sealant (not shown) is used introduced into the sleeve lüü; in this regard it is pointed out pointed out that the sealing lips, such as the sealing lip 128 in the opening 125 for the connecting lamella 102, prevent the Sealing compound through the front part 120 at the edge of the connecting lamellas or the grounding pin.

The side covers 140 and 160 are articulated on common hinge webs 110 and 111. It should be noted that the side covers I ² JO and 160 are similarly shaped and fit together to form a smooth outer surface for the connector 100. The flange 145 and the shoulder 146 of the side cover I ¹ JO are locked to the flange I65 and the shoulder 166 of the side cover 160 in order to produce a relatively dust-proof connection which also protects against the ingress of foreign bodies into the wiring area.

The prongs 156 and I57 of the side cover 140 are each received by openings 176 and I77 of the side cover I60; the prongs thus keep the side covers in alignment and forces interfering with the alignment which can arise when the cable 113 is clamped between the cable clamping teeth 150, 151, 170 and 171. The dowel pins I3O-133 fit exactly into the openings I58 and I59, I78 and 179 in the side covers. This mutual engagement between the dowel pins and the side covers absorbs all the longitudinal forces that occur between the side covers and the front part 120, for example those forces that occur when the plug is pulled out of a junction box and lift the stresses otherwise occurring on the hinge webs 110, 111 on. The flanges 148 and 168 fit exactly into the groove 123 in the front part 120; the flanges 147

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and 167 in turn fit into the other groove 122 also in the front part 120. The mutual engagement between the flanges 147, 148, 167 and 168 and the grooves 122, 123 serves to accommodate all lateral forces between the side covers and the front part 120 can arise, as a result of which a complete protection against stresses on the articulated webs 110 and 111 is created. the Lids are attached to one another with self-tapping screws I86 and I87 held, which through the openings 174 and 175 iro side cover 160 and in the openings 154 and 155 in the side cover l40 can be screwed in.

Referring to FIGS. 11-21, a third embodiment of an electrical connector or plug 200 with a blinded Described on the front. This plug has a plug body or housing 201 and electrical contacts, e.g. plug pins, consisting of connecting lamellas 202, 203 and a grounding pin 204. The electrical one with a faced front Plug 200 is used to establish an electrical connection between a cable 213, consisting of three individually insulated Wire conductors 214, 215 and 216 and a grounded electrical container, not shown. The body or the case 201 of the plug 200 consists essentially of a covered part or base part 220 and two side covers 240 and 260, which are hinged to the base part 220 via hinge webs 210 and 211. The whole connector housing 201 is made of, for example, molding an insulating material such as nylon. .

The base part 220 of the housing 201 has a base plate 221, the outer surface of which forms a smooth, insulating front side 221a of the plug 200. A pair of parallels * grooves or recesses 222 and 223 are provided on the back of the base plate 221 on opposite sides; these grooves traverse the However, base plate 221 does not. A similar pair of grooves or recesses 222a and 223a are in the base plate 221 next to the Recesses 222 and 223 are provided. In order to simplify the shaping of the housing 201 during the casting, the Aus

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Recesses 222a and 223a over the entire thickness of the base plate 221, so that the mold used can form each recess with a lip, such as the lip 223a ¹ (FIGS. 17 and 18). These recesses are provided in order to allow the locking sections, which are integrally connected to the side covers 240 and 260, to engage with a snug fit.

A thicker central section 22 ¹ I of the front plate 220 is manufactured in one piece with the base plate 221 and serves as a bearing and mounting block for the contacts, which in this case are shown as terminal strips 202 and 203 and as grounding pin 204. For this purpose, two right-angled openings 225 and 226 and a U-shaped or 0-shaped opening 227 are provided in the central section 224 of the base plate 221 in order to receive the connecting lamellas 202 and 203 and the grounding pin 204. One or more openings 225 226 and 227 can be provided with a sealing sleeve or sealing collar, for example a sealing sleeve 228 for the opening 225, which extends into the opening 226 in the longitudinal direction, ie in the vertical direction in FIG. Terminal strips 202 and 203 and ground pin 204 are depressed (in a downward direction in FIG. 11) through openings 225, 226 and 227, respectively, in positions as shown in FIGS. 11-21. The connecting blades 202 and 203 are held in their positions by their barbs, such as the barbs 208 of the blade 202. The ground pin may have similar barbs; these are not shown in Figures 11-12.

Terminal blades 202 and 203 and ground pin 204 are integral with insulation displacement terminals 205, 206 and 107, which extend above the thickened portion 224 of the base plate 220 and have the purpose of wiring with the three wire conductors 214, 215 and 216 of the cable 213. An insulating wall 229 is with the centrally protruding Reinforced section 224 of the base plate 220 is connected in one piece and is used to isolate the connections 205, 206 and 207 from each other.

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A pair of dowel pins 230 and 232 protrude laterally from opposite one another Sides (right and left in Fig. 13) of the front base plate 220 in front. The dowel pins 230 and 232 flank the Ground pins 204, protrude laterally outward in opposite directions. The dowel pins 230 and 232 are used to engage matching locking sections of the respective side covers 240 and 260 when these are closed and locked in Position; this is described in more detail below.

The first side cover 2 ¹ IO contains a wall 241 which, in the illustrated embodiment, is semicircular in cross section (FIG. 16). The hinge web 210, which connects the front end of the side cover 2 ¹ IO to the base plate 220, is integrally connected to both and has a thin web made of the same material. The edge of the wall 2 ¹ Jl, which is opposite the other side cover 260, is provided with a recess 2 ^ 3 'and a flange 243 which, as explained further below, comes into engagement with a matching lip and a recess of the second cover 260 . The rear end of the side cover 2 ¹ IO is provided with a semicircular opening 24 ¹ I for the cable 213 to pass through; a sealing collar, which is not shown, can also be provided here. A pair of flanges or projections 247 and 248 protrude from opposite sides of the side cover 240 towards the base plate 220 and are received in recesses 222 and 223 of the base plate 220 when the side cover 240 is pivoted about the hinge 210 and closed (Fig. 11 and 18).

A cable clamping tooth 250 extends diagonally between two thickened portions 252a and 252b of the rear wall 241; a reinforcing rib 253 may be provided in connection with this cable clamping tooth. Two openings 254 and 255 are provided in the side cover 240 and let into the outer surface of the wall 241 (FIG. 12). They hold the assembly screws, which are described in more detail below. The first side cover

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240 also has a section with a recess 258 is provided, which fits the dowel pin 23O (Fig. 21) when the side cover 240 is closed.

Furthermore, the first cover 240 has a pusher block I88 (Fig. 16), which, as described in more detail below, as an insulation displacement connection between the wires of the cable 213 and the connections 205 and 206, 207 are used when the first side cover 2'IO is closed. The pusher block contains one upper collar 189 and a lower collar 190 which are generally parallel to front 221 when the plug is closed or pivoted; however, the two collars are separate from one another, so that the free ends of the connections 205,

206 and 207 can penetrate into the space between the latter. The upper handle collar I89 has semicircular openings 189a, 189b and 189c which in turn are aligned with terminals 205, 206 and 207, respectively; they are so dimensioned that they partially accommodate the insulated conductors 214, 215 and 216. The lower handle collar I90 is similarly semicircular Recesses 190a, 190b, 190c provided, which are similarly arranged and shaped. The lower handle collar 190 also has a cutout 190d which is arranged and dimensioned so that it can receive a portion of the insulation wall 229 which is between the terminals 205 and

207 is provided; a similar cutout 190e, similarly shaped and arranged, serves to receive a section of the insulation wall 229 which is provided between the connections 206 and 207. A recess 191a is used to receive a portion of the insulation wall 229, which is provided on the outside of the connection 205; Another recess 191b serves to receive a section of the insulation wall 229 which is provided on the outside of the connection 206. Reinforcing ribs 192a, 192b and 192c connect the two coils 189 and I90 and penetrate fitting into the insulation displacement slots 205a, 206a and 207a of the terminals 205, 206 and 207 a, when the first lid is closed the 240th

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The second side cover 260 is similar to the first side cover 240 and has a similar wall 261. The second side cover 260 is connected in an articulated manner to the front part 220 by a hinge web 211. A wall 263 extends along the edge de3 wall part 26l, which is ^{opposite the first side cover 2 1} IO; the wall 263 has the shape of a flange which protrudes in the direction of the second side cover 260 from a surrounding recess 263 ', so that when the plug is closed according to FIGS. 11 and 21, the wall 243 of the first side cover3 2' (O with the recess 263 'of the second side cover 260 corresponds; the wall 263 of the second side cover 261 in turn fits the opening 243' of the first side cover 240. The wall 263 has a semicircular opening 264 which cooperates with the opening 244 in the wall 243 to Cable 213 and a possible cuff (not shown) A pair of flanges or projections 267, 268 extend from the opposite side of the side cover 260 towards the base 220 and are arranged and sized to fit through the recesses, respectively 22a and 223a of the base 220 can be received when the side cover 260 is closed. As best seen in Figures 17 and 18, d he flange or projection 268 has a clamping tooth 26öa which is dimensioned and arranged so that it abuts against a lip 223a ¹ in the recess 223a when the side cover 260 is closed in order to keep this side cover in the closed position at all times. A cable clamping tooth 270 extends diagonally between blocks 227 and 273, which are made in one piece with the side cover 260 and may have a reinforcing rib 270 a, the cable clamping teeth 250 and 270 are oriented so that they cross when the connector is assembled so that in some way the cable 213 is deformed and securely gripped. Two openings 274 and 275 are provided in the blocks 272 and 273 in order to receive self-cutting assembly screws which are inserted through the openings 254, 255 of the first side cover 240. The second side cover 260 has a recess 278 which wel-

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before it is dimensioned and arranged so that it is a snug fit Can accommodate dowel pin 232 when the second side cover is closed.

The connector shown in Fig. 11-21 is assembled as follows. The terminals 202 and 203 and the ground pin 20 ¹ I are pushed into their respective openings 225, 226 and down to the positions shown in FIGS. Ik and 19. The second side cover 260 is then brought from the open position, which is shown with solid lines in Fig. Ik , to the closed or folded position, which is indicated with dashed lines. It should be noted that, as can best be seen in FIG. 18, the second side cover 260 ^{remains permanently locked in this position after closing by the engagement of the clamping teeth 267a, 268a and the lips 22a 1} , 223a '. To wire the connections, the outer insulation 213a of the cable 213 is stripped to a length that is short enough to allow the outer insulation 213a to be gripped by the clamping teeth 250 and 270 when the connector is assembled and the three wire conductors 214, 215 and with their insulation are pushed into the recesses which are formed by the insulation walls 229 for the connections 205, 206 and 207, as shown in FIG. 20 for the wire 15. The terminal insulation displacement slots have flared entries at their free ends to facilitate alignment of the insulated wires with the respective slots. In addition, the lead-ins or the slots or both can be thinned or sharpened to assist in cutting through the insulation of the wires. The width of the slot is no greater than the respective diameter of the connecting wires which are to be wired to it; the insulation walls 229 are next to the rungs which form the connection slots, so that the rungs or prongs are under tension and prevent undesired opening and loosening of the slots as a result of the slot spreading forces when the

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Wires through -. Be pressed. The connection slots are staggered i.e. the slot 207a extends into 13 further to the right than the other two slots. If desired, the other two connection slots can also be used be staggered in relation to each other. This graduation serves the purpose that all three wires 214,215 and 216 are not the same:; eiti £ have to be pushed in through the respective entries of their connections, creating excessive stresses and strains be avoided.

After the second side cover 260 is in the closed position and the three wires 214, 215, 216 in the insertion ends of their respective Terminal slots 205a, 206a and 207a have been brought (FIG. 20), as shown in connection with wire 215 the side cover 240 is pivoted about the hinge 210 in the direction of the second side cover 260. The upper and lower collars 189, 190 engage the portions of wires 214, 215, 216 immediately above and immediately below the lead-in slots of the terminals. Like the introduction of port 207 extends farthest towards the side cover 240, the recesses 189a and 190c and the rib 192c engage the Wire 218 before engaging the other wires 214, 215 in a similar manner. When the first side cover is 240 in Is moved towards the closed position, the wire 216 is moved by the insertion of the terminal 207 in the insulation displacement slot 207a pushed; during this process, the terminal cuts into the insulation of wire 216 and sets make electrical contact with the electrical conductor. The rib 192c then enters the connector slot 207a around the Wire 216 continues to slide therein when the first side cover 240 is brought into a fully closed position will. The wires 214, 215 are similarly inserted into the slots 205a and 206a through the openings 189a and 189a, respectively 190a and the rib 191a and the openings 189b and 190b and the rib 192b are pressed when the first side cover 240 in the direction is moved to its closed position. When the first side cover 240 has reached its closed position, it not only has

909829/0606 ORIGINAL INSPECTED

to help make the electrical contacts between the terminals and the wires, but also to enclose the wiring area and to grasp the cable 213 between the cable clamping teeth 250 and 270 (Fig. 21). The fact that the slots 205a, 206a and 207a extend in curves which are essentially arcs of a circle with the center of the hinge 210 helps to ^{break the insulation of the wires 21 1} J, 215 and 216 if the first side cover 2 ^ 0 is closed. The rear sections of the two side covers 2 ¹ JO and 260 are firmly connected to one another by assembly screws 286, 287, which extend through openings 254, 255 in the first side cover 2 ¹ JO and themselves into the partial ^{openings 27 1} J, 275 of the second side cover 260 drill into it. The first side cover can be moved toward the closed position by hand, starts to at least the engagement of the wire 216; the assembly screws I86, 287 can then be screwed in using a screwdriver or other means to apply the remaining force necessary to fully assemble the connector.

When the two side covers 2 ¹ IO and 260 are in the closed position (FIG. 21), the projections 230, 232 are in engagement with the openings 258, 278, whereby a relative movement between the base part 220 and the side covers 2 ¹ IO, 260, respectively in the longitudinal direction (ie in the vertical direction in FIG. 21) and in a lateral direction parallel to the joints 210, 211 is prevented. The projections 267, 268 lie in their respective recesses 222a, 223a, which is shown, for example, for the projection 268 in FIG. 18; the respective clamping teeth 267a, 268a are ^{locked with the lips 222a 1} , 223a ^f , as shown in FIG. This permanent locking arrangement between the projections 267 and 268 and the respective recesses 222a and 223a opposes a relative movement between the second side cover 260 and the base part 220, both in the longitudinal direction and in all lateral directions transverse to this longitudinal direction. The engagement of the projections 2 ^ 7 and 248 of the first side cover 2 ¹ JO in the recesses 222, 223 of the base

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part 220 prevents movement of the first side cover 240 with respect to the base plate in all lateral directions transversely to the longitudinal direction. These interventions between the clamping or engaging portions that are integrally formed on the base and the side covers facilitate the forces acting on the Articulated webs 210, 211 would act and allow an appropriate assembly or reassembly of the connector; they are safe even if one or both of the hinge webs 110, 111 are weakened or torn.

The plug shown in Fig. 11-21 can be used as a plug with plug contacts (as shown) or as a contact socket (not shown) instead of the fins 202, 203 and ground pin 204. Each socket contact part becomes electrical connected by being integrally molded with the insulation displacement terminals 205, 206, 207. Optionally, the The connector according to FIGS. 11-21 has one or more contact pins or one or more socket parts.

As a result, an electrical connector with blinded Front made of a single cast or injection-molded housing or body on which only the electrical Contacts, the connectors and possibly the assembly screws must be set; this results in low manufacturing and assembly costs. No self-employed Parts can be lost during wiring; the open position of one or both side covers allows unhindered Access to the wiring area. In the case of a connector shown in FIGS. 11-21, the swaying in machining switched off in connection with screw-shaped terminals, on the one hand with regard to the property of the stripped conductor ends and on the other hand with regard to the torques, which arise in connection with the tightening of the connection screws. The mutual locking of the side covers and of the base of all the connectors mentioned above, reduces stresses on the hinge webs and leads to a solid structure, which is completely isolated and operable

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remains, regardless of a possible weakening or failure of the joint bars.

ORIGINAL INSPECTED 909829/0606

e e r s e

ite

Claims (1)

PATENT CLAIMS l.i Electrical connector with faced front with a housing for electrical connections to which conductors of an electrical cable can be wired, consisting the end: a base plate having a front side and blind side and an end at least a pair üi'i'nuti ^ eti passage of electrical contacts, a pair Seiter.dc-CloL each having front and rear ends, a pair of hinge webs which with the front ends of the respective side cover, the base plate for the articulation of the side caps in an articulated manner around hinge axes, the latter extending länrrs the front side, the side covers between closed positions, in which the rear ends of the side covers lie next to each other and are separated from the front ends along a longitudinal axis and an open position are articulated in which the rear 909829/0606 (only PA Dipl.-Ing.S. Steiger) linden the side cover removed and separated from each other along a side axis transverse to the longitudinal axis, wherein the base plate, the side cover and the joint webs are molded in one piece from an electrically insulating material, fixing means provided in addition to the joint webs, consisting of base sections formed in one piece with the base plate and side sections molded integrally with the side panels, the base plate and the side sections at closed positions of the side covers are mutually superposed in engagement to a movement of at least the front portions the side cover with respect to the base plate along a longitudinal axis as well as along a side axis transverse to the longitudinal axis To provide resistance and at least one electrical connection within the housing for making contact with a Conductor of an electrical cable and a raised integral portion on the inner surface of at least one Side cover, which interacts with the electrical connection, to press an insulated covered conductor on the connection, to move its insulating cover and a establish electrical contact between the conductor and the electrical connection. 2. Connector according to claim 1, with at least one pair of electrical connections, each made of electrically conductive material and arranged in the housing next to one of the openings in the base plate, each connection having a slot for moving the insulation, which is behind the end face the base plate, extending generally transversely to the longitudinal axis and having a feed open towards the first side cover, the first side cover having a raised portion made in one piece therewith, forming a pusher block and forming a pusher collar which is formed in the closed position of the first side cover approximately along and next to at least a portion of each of the connection 9 09829/0606 slots extending, creating an electrical conductor with intact Insulation can be introduced into the feed end of each connector slot when the first side cover is open and pushed into the slot by the pusher block when the first side cover is closed to isolate it interrupted by entering the connection slot in order to establish electrical contact. 3. Connector according to claim 2, characterized in that the slot for sliding the insulation of each terminal is curved and extends approximately along an arc section of a circle, the center of which is on the first hinge web lies. H. A connector according to claim 2, characterized in that the pusher block comprises a pair of collars which are separated from one another along the longitudinal axis when the first side cover is closed and in that the pusher block receives a portion of each terminal between its collars, around an electrical conductor into the connector slot from both sides of the slot. 5. Connector according to claim 4, characterized in that the respective dimensions of the two handle collars are designed so that when the first side cover is closed, the pressing Ends of the two handle collars overlap and each extend beyond the ends of the electrical connections. 6. Connector according to claim 2, characterized in that the respective dimensions of at least two of the connection slots and the pusher collar are designed so that when the first side cover is closed, the pusher collar has one of the connection slots overlaps before the second connection slot is overlapped, whereby an electrical conductor partially into one 909829/0606 Slot is pressed before one begins to push an electrical conductor into the second slot, and the force is reduced that is required to close the first side cover, compared to the force that is required is to simultaneously push both conductors into their respective connection slots. 7. The connector of claim 1 having at least two electrical terminals in the housing, each having a slot for receiving of a conductor of an electrical cable, characterized in that the fixing means have parts lying one on top of the other have which firmly engage each other when the second side cover is brought into its closed position to to keep the latter in the closed position and thereby enable 'that the second side cover as a usual restraint means (Back up) can be used when clamping the electrical cable, which is to be brought into engagement with the connection slots Has head. 8. Connector according to claim 7 »wherein the fixing means has a clamping tooth with a protruding stop which is in one piece is formed with a base plate and the second side cover and have a clamping recess lying on top of one another, the Shoulder is formed with the other base plate and the second side cover, characterized in that the Klerrunzihn and the clamping recesses are mutually engaged and the protruding stop is held by the shoulder, when the second side cover is brought into the closed position in order to prevent the latter from subsequently being in a Articulated open position. 9. The connector of claim 2, wherein the base plate has barrier walls which are integrally connected to the base plate, extend along the longitudinal axis and on opposite sides Sides of each of the insulation displacement connections are arranged, characterized in that the barrier walls un- 909829/0608 285568S run indirectly next to each insulation displacement connection in a direction transverse to the connection slot, whereby an undesired Opening of the slot is prevented by forces that result from pushing a conductor into the slot. 10. Connector according to claim 1, characterized in that the fixing means for each side cover at least a pair of a side cover portion and a mating base plate portion which when mated Engagement of a relative movement between the side cover and the base plate along the longitudinal axis and along a side axis Provide resistance, and at least a second pair of a side cover portion and a base plate portion which upon mating engagement of movement of the side cover resistance relative to the base plate part at least along any side axis in the plane of that side axis Afford. 11. A connector according to claim 10, characterized in that the second pair of fixing means for at least one of the Side cover a movement of this first side cover relative to the base plate section along a longitudinal axis and longitudinally resist any other side axis. 12. A connector according to claim 11, characterized in that the second pair of locking means comprises parts around the first To hold back side cover from 'another articulated shift towards the open position, once he did it has reached its closed position. 13- Faced front connector with a housing for electrical connections to which conductors of an electrical cable can be wired, consisting of: a base plate with a covered front and a front and at least one pair of openings for the passage of electrical contacts 909829/0606 with at least one side cover with a front and rear end and a hinge web, which connects the front end of at least one side cover with the base plate to connect at least one side cover articulated about a hinge axis which extends next to the front side, the side cover between a closed position , in which its rear end is separated from the front side along a longitudinal axis transversely to the front side and an open position can be pivoted in which its rear end is separated from the base plate 1 / along a side axis transversely to the longitudinal axis, the facing surface and the side cover as well as the Articulated webs are each molded in one piece from an electrically insulating material, fixing means are provided which are arranged in addition to the articulated web and have base plate sections which are formed in one piece with the base plate and furthermore side sections which are provided with at least one side cover e are instukig shaped, the base plate and the side portions each matingly engaged with each other when at least one side cover is in the closed position to resist movement of at least the end of at least one side cover with respect to the base plate along a longitudinal axis and any side axis and at least one pair of connections, each made of an electrically conductive material and arranged next to one of the openings on the base plate, each connection having an insulating sliding slot which is arranged behind the end face of the base plate and is generally transverse to Extends longitudinal axis and has a feed end which is open in the direction of at least one side cover, the latter having a pusher block made in one piece with it, which when the side cover is in the closed position generally extends along and next to whom extends at least a portion of each of the connection slots, whereby an electrical conductor with intact insulation at the insertion end of each connection slot can be inserted when the side cover is in the open position and is pushed into the slot through the pusher block when the side cover is brought into the closed position 909829/0606 to break the insulation through the connection slot and establish electrical contact. lA. Connector with a blinded front with a one-piece housing for electrical connections and an electrical contact possibility through openings in the front, in which the housing has a longitudinal axis, consisting of: a base part, which forms the blinded front of the housing and runs transversely to the longitudinal axis, electrical connections on the base part, the latter being composed of insulation material and having openings for an electrical connection between the connections to an external electrical circuit, with at least two lateral housings made of insulation material with first and second ends, hinge webs which connect the first end of each of the side housings to the Connect base to create a unitary structure and an articulated movement of the housing from a closed position, which extends substantially longitudinally and encloses the ports, to allow an open position, which is the makes connections for wiring accessible and a plurality of locking parts, of which at least one is arranged on each of the side parts in the vicinity of its first end and at least a corresponding number on the base part, one on the base part cooperating with each of the side housings and the locking parts respectively Keep transverse and longitudinal tensions away from the joint boxes when the lateral housings are closed and the base part locks the latter against relative displacement transversely and parallel to the longitudinal axis, the electrical connections each having a conductive receiving surface for receiving an insulated electrical conductor Cable and for cutting through the insulation around the conductor to produce an electrical contact and this receiving surface each in the direction of one of the side housings and the receiving surface of the first connection closer to the first lateral housing than the receiving surface Surface of the second connection extends and the one lateral housing after a closing movement an insulated conductor against the receiving surface of the first 909829/0606 Terminal presses, after which another insulated conductor is pressed against the receiving surface of the second terminal. 15. Housing with electrical connections to which a conductor can be wired with an electrical cable, and a longitudinal axis, consisting of: a base made of insulated material, which extends transversely to the longitudinal axis, electrical connections in the housing, each housing openings for has an electrical connection between the terminals and the external electrical circuits, at least two lateral ones Housings each made of electrically insulated material and enclosing terminals are provided, each this housing has first and second ends, respectively, hinge webs that connect the first end of each side housing with Connect the base part to a side structure, and a pivoting option the side housing creates, each about axes transverse to the longitudinal axis of a generally in Longitudinally extending closed position, in which the connections are enclosed, to a transverse open position, which allow accessibility of the connections, locking means outside the articulation webs in the vicinity of the first end of each side housing, around the side housing on the base part against relative displacement transversely to the longitudinal axis when closed To lock housings, the locking means having mutually engaging parts, one of which is a ::. Basic part and one is provided on each of the two lateral housings, these parts being connected to one another when the housing is closed come into engagement when the respective housing is closed and a projection for at least one of the side housings and form a shoulder for the other, the projection engaging behind the shoulder when a side housing is closed is to keep the latter firmly in the closed position. 909829/0606