DE2447970A1 - DEVICE FOR CONNECTING A VARIETY OF ELECTRICAL LADDERS - Google Patents

Description

PATENT ADVOCATES A. GRÜNECKER

DIPt -.- INQ.

H. KINKELDEY

*. DR.-ΙΝβ.

W. STOCKMAIR

Ο Ii Δ 7 Q 7 Π DR.-ING. AoE (CALTECH)

K. SCHUMANN

DR. RER. NAT. · DIPL.-PHYS.

- P. ~ H: -SJAKOB

DIPL.-INQ.

G. BEZOLD

DR. RER. NAT. · DIPL-CHEM.

MUNICH

E. K. WEIL

DR. RER. OEC. INTO THE.

8 MUNICH 22

MÄXIIWILIANSTRASSE 43

P 8613-02 / Eä

LINDAU

10/4/1974-

Bunker Eamo Corporation
9OO Commerce Drive
Oak Brook, Illinois
United States

Device for connecting a large number of electrical conductors

The invention relates to a device for connecting a plurality of insulated electrical conductors to a corresponding one Plurality of insulation piercing contacts; carried by an electrical connector.

One such device is commonly known as the Warren machine is used to make soldered connections, widely used between a plurality of conductors and associated electrical connections. Have machines of this type usually a pivotally mounted ladder separating and holding device that spaced the ladder from an associated one Pair of cutting edges of a cutting and stripping

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keep direction. The cutting edges cut the conductors so that they are each the same distance from the holding device and the blade will cut and hold the insulation firmly to strip them off when the holding device is pivoted away from the cutter. The cutting device is carried by a carriage that moves transversely is mounted on the conductor holder, and a terminal strip holder is movably mounted on the slide for the visible setting up of a connection strip by hand next to the associated stripped ends of the conductors when the holding device is pivoted towards the slide. The single ones Conductors and their associated terminals are then connected by soldering, the simplest technique in use a soldering iron by the operator.

Good electrical and mechanical connections are made in this way and a skilled operator can use benches Make soldered contacts with very few short circuits or bridges.

However, the technique described has various disadvantages overall. In particular, bridging can occur and thus lead to a very large increase in the assembly time. Second, a soldering machine and quite a great craftsmanship for continuous soldering is in mass production necessary.

There is therefore a need for an improved embodiment of the machine described, in which the disadvantages no longer exist can occur and the required equipment and manual skills to produce the soldered connections are lower are.

The object of the invention is to create a new device of the type mentioned, with the solderless connections with a plurality

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electrical connections can be produced.

In a device of the type mentioned, this object is achieved according to the invention by a conductor holding device for holding the conductor with the spacing of the contacts corresponding distance from each other, by a conductor cutting device, which in a Position and is mounted movable away from this, which is located next to the ladder holding device to the ladder on a same level from the conductor holder extending distance and cut by a connector holder which is in the Position next to the holding device and movable away from it is mounted and an alignment device for holding the connecting piece with the contacts in an aligned position parallel and next to the ladders when the connector shark is te device is in said position, and includes an insertion device with which each of the conductors in the associated, the insulation piercing contacts can be swung into it.

The device according to the invention is therefore a ladder holding device on, with which a plurality of insulated electrical conductors separated from one another and in essentially the same manner Level are held, this device is pivotably mounted to the ladder in the path of movement of a slide and to move out of this trajectory. The Schiit ten can be moved between two positions and carries a cutting device for the ladder, which in one position cuts off the ladder carried by the holding device, that they extend from the holding device by a certain length. The carriage also carries a connector retainer and an insertion means which are movable together with the carriage so that the parallel and horizontal aligned channels of the connector in an aligned position with the individual of the holding device

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carried ladders is movable. The inserter is pivotally supported and received by the ladder holder a force with which all conductors can be inserted into their respective insulation-piercing contacts, which are in separate conductor channels are arranged.

After inserting the conductors on one side of the connector if the connector is released from its holding device, the cutting process with the remaining conductors, the the other side of the connector are assigned, performed again, then the connector again on the Fixed holding device and inserted the remaining conductors, as was the case with the first insertion process.

So with the new device, a connector is worn and automatically connected to a variety of isolated electrical Aligned conductors, this device being an insertion device for the conductors into the corresponding insulation having piercing contacts which are arranged in separate channels of the connector.

Further, the special training of the new device concerned Refinements of the invention are given in the subclaims.

The invention is explained in more detail using an exemplary embodiment shown in the drawing. Show in detail:

Pig. 1 is a perspective view of the new Vorridtung, wherein the ladder holding device is pivoted away from the carriage,

Fig. 2 is a view in FIG. Λ shown device, said conductor holding means is pivoted back to the carriage,

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Mg. 3 is a further representation of the device shown in FIG. 1, wherein the ladder holding device is pivoted towards the slide and the slide is in one position is moved, in which the connector holding device and the insertion device relative to the ' ladders carried by the holding facility are located,

Pig. Fig. 4 is a side view of the connector retainer and the introducer;

J ¹ Ig. 5 a rear view of the devices shown in FIG. 4,

Fig. 6 is a front view of the lower part of the devices shown in Fig. 4 and

7 shows a partial sectional view along the line VII-VII of FIG. 5.

The new device 10 shown in FIGS. 1 to 3 has a Frame 12, which comprises a slide base plate and a base plate 16 for the conductor holding device, which can be pivoted at 18 is mounted on the slide base plate 14.

A cable clamp 20 and a fastener 22 for holding the cable above the base plate 16 are used to clamp a multi-core cable Cable in the device 10. The base plate 16 of the holding device has a pair of upstanding arms 24 and 26, which extend from the pivot axis 18 and a rake 28 separating the ladder carries on an arm which is pivotable is mounted at 32 and carries a clamping rod 34- which is pivotable is mounted at 36 for rotation over the ladder. A Vei - locking mechanism 38 clamps the arm over the ladder to this to hold in a separate, longitudinally extending position.

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The carriage has a pair of upstanding end portions 4-0 and 42 on opposite ends of the carriage base 14- are attached. The end parts 40 and 42 serve as end stops for the carriage and carry a pair at a distance mutually arranged carriage rails 44 and 46, which the carriage J? 0 on a plurality of carriage bearings 48 for Store movement along the slide rails.

A cutter 52 is mounted on the carriage and has a spring 54 adjacent to the cut ends of the conductors to be picked up and held after the cutting process. The cutting device 52 has a lower cutting rod 56, which is mounted transversely to the conductors on a holding member 66, and a cutting bar 58> which has a handle 60 and is pivotably mounted in Virk connection with the cutting rod 56 at is. The attachment 66 for the lower cutter bar extends to provide a limit stop 64 for the cutter impaired, which is carried by the ladder holding device. It is easy to see that mutual Impairment of the bracket 66 and the limit stop 64 disappears when the ladder holding device from the slide is pivoted away.

The carriage 50 also carries an insertion device 68 at a point remote from the cutter 52 such that that the introduction device 68 exactly matches the individual Aligns conductors separated and supported by the rake 28 and also aligns an electrical carried thereby Connector exactly. The insertion device 68 has a base plate 70 on which a connector holding device 72 is attached. The connector retainer 72 has at least one projection 74 for receiving of a connector in abutment with this to the contact channels of the connector with the held conductors.

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align. The connector retainer 72 has a shoulder 75 with a spaced apart retaining spring 76 for releasably clamping a connector cooperates in the introduction device.

A block 78 is attached to the rear of the base plate 70 and carries an insertion tool holder 80 that is rotatable about an axis 82. The insertion tool holder 80 also carries a handle 84 for rotating the tool holder and an insertion head 86 which has a plurality of insertion blades 88 for applying and pressing associated insulated conductors into the associated, the insulation piercing contacts that are in separate, horizontally aligned channels of the retained electrical connection " Piece are arranged. The insertion tool holder 80 also has a pair of spring loaded pins 90 and 92 to to facilitate stripping of the connector from the insertion head after the insertion process.

The insertion tool holder 80 also carries a protrusion 94 with an arcuate cam surface 96. A pair of C-shaped Arms 98 and 100 are rotatable about a "pin" shape Axis 102 are mounted and carry a handle 104 which is rotatable on a cylinder 106 for rotation about an axis 108 is stored. The cylinder 106 also carries a crook 110 that is rotatable into engagement with the cam surface 96 on the boss 94 carried by the insertion tool holder 80 is. When the handle 104 is rotated backwards, the insertion tool holder is therefore pressed downwards and the insertion blades 88 of the insertion head 86 force the individual conductors through the respective connector channels through into the insulation piercing contacts which are arranged in them.

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To the handle 104 in a halfway locked position, in this embodiment in an upright position, out of the way of an operator and in a ladder holder during the movement of the carriage to a position in which the insertion device is adjacent to the Ladder holding device is located, not to be able to hold the impairing position, the handle 104 'is with a spring changeover mechanism Mistake. The switching mechanism can be provided at both ends of the cylinder 106 and can preferably have the shape shown in Fig. 7 in which the cylinder 106 is provided with a pair of flat surface portions 118 and 120, which are arranged substantially at right angles to each other and have a rounded part between them. A feather is fixed at one end in a bore 114 and with attached to the upright part by means of a screw 116. The other end of the spring 118 is shaped to fit the respective Corresponds to the angular position of the flat surface parts 118 and 120 and presses against these surfaces to turn the handle 104 in to maintain the upright position.

A pin 124 is carried by the insertion tool holder 80 in alignment with the handle 104 and serves as a limit to the to determine the maximum depth of the conductor entry and to limit the forces applied via the connector.

During operation, the carriage is moved so that the cutting device 52 is next to the ladder holding device. An operator then lifts the cutter bar 58 with assistance of the handle 56 to remove the cutter bar 58 from the cutter bar 56 to move to a substantially vertical position. The operator then releases the lock 38 for the clamp rod and pivots the clamp rod 34 from the conductor separating Calculate 28. The conductors are then moved by the rake 28 over the cutting rod 56 into the spring 54 accordingly

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of a desired wiring plan introduced. The clamp rod 34 is then pivoted downward and to hold the ladder in a parallel and separate position locked to each other ·.

Then the operator moves the cutter bar 58 downwards, so that it cooperates with the cutting bar 56 and the ladder equidistant from the ladder holding means cuts off. The cutter bar 58 is then pivoted back up to clear the cut-off zone and the holding device is swiveled backwards in order to prevent the held ladder from interfering with the movement path of the slide Bring out location and remove limit stops 64 and 66 from the carriage. A connector, provided there is has not previously been attached, is in the connector retainer 72 of the insertion device 68 attached and the slide is moved to its end stop, whereby the channels of the clamped connector are flush with the ladders held in place. The ladder holding device is then swiveled forward again about the axis 18, to align the aligned conductors and channels parallel and immediately adjacent to one another. The insertion process is then accomplished by rotating the handle 104 downward carried out in the manner described.

After insertion, the lock 38, the clamping rod, is released 28 pivoted to ireigeben the connected conductor and removing the connector from the introducer. The connector is then moved back and held in place by the attached conductors.

The ladder holding device is then swiveled backwards, so that the cutting device 52 again next to the conductor holding device can be moved back. The cut ends of the previously cut conductors are taken from the spring 54.

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removed and a new set of ladders inserted in the rake and in the spring in the manner previously explained. The cutting device 52 is then actuated to cut off these conductors as well, the ladder holding device is pivoted backwards again to release the carriage which becomes the carriage moved to bring the inserter 68 adjacent the ladder holder, the connector is placed under the arm JO brought and on the connector holder upside down based on the position previously assumed on the holding device, the ladder shark The device is swiveled forward again in order to arrange the conductors next to the respective connector channels and the inserter 68 is actuated again to insert the ladder to be connected on the second side of the connector.

Around the fully wired connector from the connector To release, the lock 38 is released and the clamping rod is pivoted upward to release the individual conductors. Thereafter, the connector is removed from the connector holder 72 removed, the arm 30 disengaged from pivoted the upstanding arm and the connector with the attached ladders over the end of the arm 30 removed.

With the new device can therefore usually by soldered connections Established connections would be improved to provide a faster and more reliable mechanical and electrical connection a plurality of conductors with associated, insulation piercing contacts of an electrical connector. In particular, the known machine has been advantageously adapted for quick, positive and accurate alignment the conductors and contacts "adapted and provided with a device, to make electrical connections without the need for stripping and soldering.

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Although the invention has been explained using an exemplary embodiment, it is of course not limited to this, Rather, all of the features that can be inferred from the description, the drawing and the claims can be used for essential to the invention alone as well as in any combination be.

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Claims (11)

Claims 1. Device for connecting a plurality of insulated electrical conductors to a corresponding plurality of the insulation piercing contacts by 'an electrical Connecting piece are carried, marked by a ladder holding device (16,28) for holding the conductor with the spacing of the contacts corresponding to a distance from one another, by a conductor cutting device (52), which in a position and is supported movable away from this, which is located next to the ladder holding device to the ladder on a cut off equal length extending from the conductor holder and through a connector holder (72), which is mounted in the position next to the ladder holding device and movable away from it, and an alignment device (74-j75> 76) to hold the connector with the contacts in an aligned position parallel to and adjacent to the conductors when the connector retainer is in said one Position is, and includes an insertion device (68) with which each of the conductors in the associated, the insulation piercing contacts is swingable. 2. Apparatus according to claim 1, characterized in that a carriage (50) for movement is mounted transversely to the ladders between a first and a second position and that the cutting device (52) and the connector retainer (72) is mounted on the carriage. 3- Device according to claim 2, characterized in that g e k e η η that the ladder holding device (16,28) holds the ladder in a planar relationship to one another and 509818/0290 is pivotally mounted to keep the ladder out of the path of movement of the carriage when it is moved from one position to the other. 4. Device according to one of claims 1 to 3 »characterized in that the Verbindungss'tückhalteeinrichtung (72) has a base plate (70) for receiving the connecting piece with a horizontally oriented contacts that the aligning means (74,75i76) ^s with the holding means cooperating Means (75 * 76) for releasably loading and holding the connecting piece in a horizontal orientation, that the insertion device (68) has an insertion tool (86) which is pivotably held on the base plate for rotation next to the held connecting piece, that the individual conductors received between the connector and the insertion tool are aligned parallel to the contacts of the connector, that the insertion tool has a plurality of insertion members (68) for biasing and forcing the conductors into the respective insulation piercing contacts, and that means (84- ) for applying and forcing the insertion tool (86) in the direction of the fixed connector. 5.'Vorrichtung according to claim 4, characterized in that that a device (124) for limiting the movement of the insertion tool (86) and thus for limiting the depth the introduction of the ladder is planned. 6. Apparatus according to claim 5 »characterized in that that the insertion device (68) is a switching mechanism comprising a rotatable handle (104) and a projection (94) which is arranged for acting on the insertion tool (86), and that the limiting device (124) has a stop that extends from the introducer 5098 187 0290 sum limiting the rotation of the handle is carried. 7. Apparatus according to claim 4, characterized in that that the insertion device (68) is spring-loaded Has ejection devices (90,92) for the connector, around the connector when the insertion device is rotated away from the connector retainer (72) after the insertion process away from the insertion device to force. 8. Apparatus according to claim 7 »characterized marked chn e t, "that the spring-loaded ejection devices (90, 92) a pair of spaced apart spring loaded Have pistons for acting on the connecting piece. 9. Apparatus according to claim 6, characterized in that the switching mechanism is a pair at a distance from one another provided members (98,100) which are pivotally connected to the base plate (70) on respective sides of the insertion tool (86) that the handle (104) between these members are rotatably mounted and that the insertion tool comprises a ring-shaped member (110), which is acted upon by the projection (94) and held in place Connector is forced out. 10. The device according to claim 9, characterized by a resilient device (114 to 120) for holding .The handle (104) in a predetermined position. 11. The device according to claim 10, characterized in that the handle (104) on a shaft (106) is rotatably held between the members (98,100) and that the resilient means (114 to 120) is a pair of flat surface parts (118,120) on the shaft, which are arranged at an angle to each other, and a spring 112, which on one of the Member (98) is attached and against both of the flat surface portions is pressed. 809818/0 ^ 2 90 Blank page