A second embodiment of a flat cable in accordance with the invention shall be defined beneath with reference to FIGS. In order to attain the above object, the invention gives a flexible, shielded flat cable having a basic development which includes a base movie, a plurality of strips of circuit conductor Juxtaposed on the bottom movie, a strip of ground conductor arranged in parallel with the strips of circuit conductor, a cowl layer movie connected to the strips of circuit conductor and floor conductor, and a shield tape of a conductive metal foil, made for instance of aluminum, copper or the like, extending over the cover layer film, the ground conductor being conductively connected to the shield tape, wherein the cowl layer movie is of a double layered construction comprised of an upper cowl layer movie having an area provided with no higher layer movie therein, and a decrease cover layer movie, and wherein the bottom conductor is exposed, by way of the realm supplied with no higher layer movie, to the shield tape so as to be linked with the shield tape. A pair of shield tapes 5 of a conductive metal foil are connected to the outer surfaces of the cover layer movie 4 and base movie, respectively, in order to shield the cable.

The flat cable of a web-like configuration includes circuit conductors 1 of an online-like configuration Juxtaposed on a base movie 3, and ground conductors 2 of an online-like configuration disposed on the base film three in parallel relationship with the circuit conductors 1. The conductors 1, 2 are covered with a cowl layer film 4. A pair of shield tapes 5 of a conductive metal foil, product of aluminum, copper, for instance, are shieldingly connected to the cover layer movie 4, so that the ground conductors 2 and the shield tapes 5 are conductively linked. FIG. 1 is a perspective view illustrating the construction of a shielded flat cable in response to a first embodiment of the invention. A shielded flat cable according to a second embodiment is characterized by a construction whereby the decrease cowl layer film of a predetermined size is placed over the base film at a predetermined location thereof so as to electrically insulate the upper surface of the circuit conductors, the circuit conductors being supplied in the higher floor of the bottom movie, the bottom conductor is disposed on the decrease cowl layer movie, the ground conductor being arranged in parallel with the circuit conductors, and the upper cover layer movie is positioned over the bottom movie in an area together with the upper surfaces of the bottom conductor and the lower cowl layer movie so as to kind a cable physique, wherein an area having no higher cover layer movie is supplied which extends alongside the intermediate portion of the decrease cowl layer movie and transversely of the cable physique, wherein the shield tape is connected to the floor of the cable physique including the realm having no upper cover layer film so as to shield the cable physique, and whereby the ground conductor and the shield tape is conductively related with one another by the world having no upper cover layer movie.

A shielded flat cable in accordance with a primary embodiment is characterized by a development whereby the lower cover layer film is placed over the bottom film provided, within the upper floor thereof, with the circuit conductors juxtaposed thereon, the ground conductor is disposed on the lower cowl layer film in parallel relationship with the circuit conductors, and the higher cowl layer film is positioned over the decrease cowl layer movie and the upper floor of the ground conductor so as to type a cable body, whereby the cable body is offered, at predetermined places thereof, with areas having no higher cowl layer film which lengthen transversely of the cable physique, whereby the shield tape is positioned over the floor of the cable body including the areas having no higher cover layer movie in order to shield the cable body, and whereby the bottom conductor and the shield tape are conductively connected with one another by way of the areas having no higher cover layer film. Several embodiments of a shielded flat cable according to the invention will likely be explained below with reference to FIGS.

For convenience of illustration, shielded flat cables in prior art might be defined below with reference to FIGS. Thus, this type of flat cable is disadvantageous, since it doesn't meet the requirement in the art in view of miniaturization and value savings of the flat cables. With the secondly mentioned shielded flat cable in prior art, the ground conductor, 2 exposed exteriorly along the length thereof, could also be immediately connected to the shield tape 5. Thus, the "less workability", "limitation within the house between the conductors", and "much less reliability in electrical connection", because of the presence of the connection windows 6, mentioned above could also be eliminated. Thus, connection windows in the prior artwork may be obviated. The ground conductor and the shield tape may be electrically connected with one another by the world having no upper cowl layer film, with out using connection home windows in the prior artwork. The invention also permits floor-to-floor contact between the ground conductors and shield tape, so as to extend stability of efficiency in electrical connection and shielding ability. The efficiency in electrical connection between the ground conductor and the shield tape is improved as a result of floor-to-floor contact therebetween.