DE1223911B - Contact device for ribbon cable - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

HOIr

German class: 21c-21/01

Number:
File number:
Registration date:
Display day:

J 25001 VIII d / 21c
December 21, 1963
September 1, 1966

The invention relates to a releasable connection of two ends of ribbon cables by means of a zip fastener.

Ribbon cables are known which are made up of at least two layers of flexible insulating material with inserted Conductor tracks exist. For connecting components or devices that have a large number of connection points have, they are used in extensive circuits such. B. in telephony used. Wide application of such tape- ίο cables for wiring purposes, however, face difficulties in connecting to the terminals of each Components against. On the one hand, there is namely the application of soldered connections to the conductor ends of the ribbon cable, taking into account the permissible thermal stress on the film-like insulating material, is undesirable. On the other hand, however, the band body offers its flexibility about that of a strong one Corresponds to the paper strip, there is hardly any possibility of attaching a conventional plug-in connection Construction.

In addition, these plug connections would be simpler in view of the mostly large number of conductors Design have an undesirably high space requirement.

It is also known to create electrical connections by means of a zip fastener. Here is z. B. an electrically conductive plate by a zipper connection electrically conductive, form-fitting and releasably connected to a chassis. Because all contact elements (teeth) of the zipper are electrically connected to each other, this arrangement is only suitable for electrical Surface connections. A large number of mutually isolated contact points can be detached, form-fit and It is not possible with this arrangement to connect it to the corresponding counter-elements in an electrically conductive manner possible.

The object of the invention is therefore to avoid the disadvantages of the known designs and a To create multiple contact device for ribbon cables that take up the least amount of space on the flexible Belt body can be attached. According to the invention this is achieved in that the conductor ends are designed as isolated from each other arranged contact elements, which as components of a Zipper corresponding counter elements of the cable end to be connected detachable, form-fitting and connect electrically conductive.

According to one embodiment of the invention are attached as a zipper along the tape end edge Insulation strips with profile grooves pre-contact device for ribbon cables

Applicant:

International Standard Electric Corporation,

New York, N.Y. (V. St. A.)

Representative:

Dipl.-Ing. H. Ciaessen, patent attorney,

Stuttgart 1, Rotebühlstr. 70

Named as inventor:
Ralph Angelo DeRose, Villa Park, JIl .;
Heinrich Erhard Tauscher, Chicago, JIl.
(V. St. A.)

Claimed priority:
V. St. v. America December 26, 1962
(247111)

see, wherein formed as contact members end sections of the ribbon cable conductors engage in the profile grooves.

According to a further embodiment of the invention, the zipper consists of along the end channels of the ribbon cable in rows arranged closing elements, which are designed as contact elements and at least one of which is connected to a ribbon cable conductor.

According to another embodiment of the invention, the contact elements are designed as spring clips, the temple ends of which, when the connection is closed, have curvature sections that coincide.

According to a further embodiment of the invention, one on each side is provided for mutual contact Certain group of contact elements made of insulating material arranged closing elements.

According to a further embodiment of the invention are for centering the abutting ribbon cable ends on both side edges of the ribbon cable ends overlapping approaches of the ribbon body intended for mutual positive connection.

According to a further embodiment of the invention, the overlapping lugs are the band bodies separated by stapling.

609 658/284

3 4

According to a further embodiment of the invention, the disadvantages mentioned. This will essentially be

to connect the overlapping approaches, a combination of the well-known conductor printing technology

form-fitting push-button connection provided. with tear-offs designed in a certain way

According to a further embodiment of the invention, locking contacts are achieved. In the present case

the zipper by an additional push button 5 is essentially out of contact with the zipper

Connection against tension in the longitudinal direction of the cable, a pair extending across the width of the cable

burdens. Profile strips 30, 31 made of a semi-flexible, insulating

According to a further embodiment of the invention, yielding plastic. The cross section of this strip is

the zipper consists of a W-shaped channel profile in the transverse direction of the tape. The public

juxtaposed individual sections. 10 sides of both profiles face each other,

According to a further embodiment of the invention is so that the zip fastener connection by joining

at least one of the ribbon cable conductors can be closed to shield both strips,

Adjacent conductors within the contact device. Both profiles run out into flat web sections that

electrically connected to ground. with the ends of the insulating strips of the tape body

Other features and advantages of the invention are associated with 15 pers. The ladder sections of the tape go from the following description of Auskabeis are beyond the end of the tape body Leadership examples emerge that are continued in the drawings and cross over into the professional women are shown. This shows penetrating contact sections 32, 33 from. At the

Fig. 1 is a top view of a conventional ribbon cable, pressing together and closing the two profile

F i g. 2 the view of an end section of the tape ₂ o strip, the respective aligned contact cables according to FIG. 1, sections with each other in electrically conductive connection.

F i g. 3 shows the side view of a first embodiment. Contact pressure and holding force of the connection

the contact device according to the invention, can optionally by arranging several

Fig. 4 is a plan view which are reinforced with one another by parallel channel sections. Further

a contact device connected end sections 25 can the closing process with the help of a conventional

two ribbon cables, sliding lock are carried out. Furthermore, the

Fig. 5 shows another embodiment of the contact installation of the contact sections on the profile

direction according to fig. 4, also strip with the help of the well-known conductor

F i g. 6 and 7 side views of further printing technology are carried out,

gene of the contact device and 30 Fig. 4 shows the top view of a contact device

Fig. 8 shows a section of a contact device for connecting two colliding

during the closing or opening process. Ribbon cable. The arrangement essentially corresponds to

The ribbon cable according to FIG. 1 consists of flexible borrowed those according to F i g. 3, which is why

Strip material or a film 20 in which a large number of parts are numbered in the same way. An essential

number of conductor tracks 21 embedded as cable cores 35 Liches feature of the connection shown

are. The cable cores occur at their end sections in such a way that a separation by mere pulling in longitudinal

22, 23 from the insulating tape material and direction of the ribbon cable only through an extremely large

go over to soldering terminal A or B. Force action is possible. On the other hand, there is a

According to FIG. 2 is the insulating tape body from the connection by relative movement of the connection

two strips 24 and 25 of a flexible, resistance 40 profile strip in the profile direction or perpendicular to the

composed of capable plastic. Strip 25 carries tape level relatively easily possible. To a

to prevent such displacement in the closed state, for example, according to the known technology

The production of printed circuits, a special lock is provided in each case.

Conductor tracks 26, while strips 24 see finished.

position of the conductor arrangement, for example by gluing or 45 This is also the perfect escape thermoplastic Connection is applied. Abten the associated contact sections closed the end sections of the ladder are guaranteed.

Uncovered insulating material and in a known manner with According to FIG. 4 are on both of the colliding ones Provided solder terminals. This can e.g. B. by punching the cable ends on both edges of the tape body of the assembled band body and lugs 47 are provided which, when the closing end is closed Overlap inner metallization of the bond created in this way. If repeated loosening and Opening can be carried out. Closing the connection is out of the question,

The use of ribbon cables of the type described is advantageously a separable fastening instead of a type is mainly applied due to the need for a detachable one. In the example, the soldered connections are made more difficult, so that a strong heat 55 overlapping lugs 47 by staples acting on the flexible and generally 43, 44 connected to one another. For the same heat-sensitive material of the tape body, one can optionally be linked with the number 45, 46. On the other hand, the application also offers interpreted pin connections to be used. Bevon plug-in connections, for the actuation of which the relationship between the drawings and the assignment features of the connection-wise high force is required, no ribbon cables can be accommodated in the area 49 of the security against damage to the flexible ribbon attachments 47. Another body. Pullers, as they are already guiding the locking of both cable ends in are known for printed circuit boards, are for F i g. 4 indicated by tabs 48, which are attached to the application in plug connections of tape cable end and iron connections 48 a cables due to the lack of strength of the tape body 65 for the other cable end,
not very suitable. The fastening shown in Fig. 5 of both cable

The in Fig. The embodiment shown in FIG. 3 of an inventive end 41 and 42 also sees one another overlapping one another

according to the contact device for ribbon cables avoids lugs 41 'on the side edges of the ribbon body.

I 223

The approaches in turn overlap and in this case are connected by means of a hollow rivet 40.

For particularly increased contact pressure and high holding force, an arrangement according to FIG. 6 are provided. The profile strips 56, 57 consist of a high-strength material, for. B. metal, and are connected to the ribbon cables 54 on both sides by attached pins 50, 51, which reach through the band body at the cable ends and have welded locking heads 52, 53 on the opposite side. When the connection is closed, the claw-like profile sections E and F are expanded by pressing against each other and form a form-fitting connection after they have snapped into place.

According to Fi g. 7, a structure of a plurality of individual contact members 63 can be provided for the slide fastener. The latter are designed as bow springs and are arranged in rows next to one another along the abutting edges of the two band bodies. The bow ends of the contact members have congruent arcuate sections 60 which, when the connection is closed, come into mutual engagement and provide a form-fitting safeguard against contact separation. The mutual spacing of the contact members 63 is to be selected in such a way that sufficient tensioning of the bracket ends against one another is ensured. In the present case, a single contact member 63 on the one hand and a pair of adjacent contact members 63 on the other hand are provided for making contact between two associated conductor ends 64 a and 64 b. The conductor tracks lying next to one another are separated from one another by insulating members 61, 62, which at the same time serve as abutments for the clamping connection between the individual brackets. One advantage of this arrangement is that there are two parallel-connected contact points for each conductor connection, which ensure greater contact reliability. The number of contact points connected in parallel can optionally be increased even further, as in the case of the embodiments described above.

Another advantage of the embodiment according to FIG. 7 is the low actuation force during the closing process. As shown in FIG. 8, this results from the chronologically successive engagement of the individual contact members 71, 72, the engagement point 70 successively passes through all contact members and progresses across the width of the entire ribbon cable.

Claims (11)

50 claims: 1. Detachable connection of two ends of a ribbon cable by a zipper, thereby characterized in that the conductor ends (z. B. 26, 64 a) arranged as isolated from each other Contact elements (z. B. 32, 56,63) are formed as components of the zipper corresponding counter elements (e.g. 33, 57, 63) of the cable end to be connected can be detached, Connect positively and electrically conductive. 2. Contact device according to claim 1, for ribbon cables, which consist of a flexible strip of insulating material exist with embedded conductors, characterized in that as a zipper Strips of insulating material (30, 31) with profile grooves attached along the edge of the tape end are provided are and that designed as contact members end sections (32, 33) of the ribbon cable conductor in the Intervene profile grooves. 3. Contact device according to claim 1, characterized in that the zipper consists of closing elements (63) arranged in rows along the end edges of the ribbon cable, which are designed as contact elements and of which at least one is connected to a ribbon cable conductor (64 a, 64 b) . 4. Contact device according to claim 3, characterized in that the contact elements (63) are designed as spring clips, the clip ends of which when the connection is closed to Coinciding curved sections (60) have. 5. Contact device according to claim 3 or 4, characterized in that in each case on both sides a group of contact elements (63) made of insulating material intended for mutual contact existing closing elements (61, 62) are arranged. 6. Contact device according to one of the preceding claims, characterized in that that for centering the abutting ribbon cable ends on both side edges of the Ribbon cable ends overlapping lugs (47) of the ribbon body for mutual form-fitting Connection are provided. 7. Contact device according to claims, characterized characterized in that the overlapping lugs (47) of the tape body by stitching are separably connected to each other. 8. Contact device according to claim 6, characterized in that for connecting the overlapping lugs (47) a form-fitting push-button connection is provided. 9. Contact device according to one of the preceding claims, characterized in that that the zipper by an additional snap fastener connection (48, 48 a) against train in Cable longitudinal direction is relieved. 10. Contact device according to one of the preceding claims, characterized in that that the zipper consists of individual sections placed next to one another in the transverse direction of the tape. 11. Contact device according to one of the preceding claims, characterized in that that at least one of the ribbon cable conductors to shield adjacent conductors within the Contact device is electrically connected to ground. Considered publications:
German patent specification No. 970 716. 1 sheet of drawings 609 658/284 8.66 © Bundesdruckerei Berlin