Device for transmitting energy through electric wire or optical cable wound on drum

A device for transmitting signals between a multi-core optical cable and stationary terminal units corresponding to each core of said multi-core optical cable comprising:

• a rotatable drum rotatably mounted upon rotary shafts;
• a multi-core optical cable adapted to be wound upon said drum, one end of said optical cable being disposed through a through-hole in said drum, at least one of said rotary shafts being hollow;
• at least one rotary joint coupled to at least one of said rotary shaft, one core of said multi-core cable being operationally coupled through said rotary joint to a first stationary terminal unit;
• a plurality of dummy bobbins mounted upon and rotating with at least one of said rotary shafts;
• a plurality of coupling bobbins, one of said coupling bobbins being provided for each of said dummy bobbins, each of said coupling bobbins being mounted upon a corresponding rotary shaft;
• a plurality of dummy fibers, one of said dummy fibers being provided for each pair of said dummy bobbins and said coupling bobbins, each of said dummy fibers having a first end disposed through a through-hole in its corresponding dummy bobbin and being coupled to a corresponding core of said multi-core cable, each of said dummy fibers being adapted to be wound upon a corresponding dummy bobbin and coupling bobbin;
• means for rotating said coupling bobbins in response to rotation of said rotary shafts;
• a plurality of second rotary joints, one of said second rotary joints being provided at the end of each of said shafts upon which said coupling bobbins are mounted, each of said dummy fibers having a second end disposed through a through-hole in its corresponding coupling bobbin and being coupled to the corresponding rotary joint, each of said rotary joints being coupled at the end thereof away from said coupling bobbins to corresponding stationary units.

A device for transmitting signals between a multi-core optical cable and stationary terminal units corresponding to each core of said multi-core optical cable comprising:

• a drum;
• a rotary shaft, said drum being mounted on said rotary shaft to rotate therewith;
• a multi-core cable adapted to be wound upon said drum, said multi-core cable having one end thereof extending through a through-hole in said drum;
• a plurality of dummy bobbins mounted upon said rotary shaft and rotated therewith;
• a plurality of dummy fibers, one of said dummy bobbins being provided for and wound upon corresponding ones of said dummy bobbins, each of said dummy fibers being coupled to a corresponding core of said multi-core cable;
• a plurality of tensioning devices, one of said tensioning devices being provided for each of said dummy fibers;
• a plurality of bundle receiving units, one of said bundle receiving units being provided to receive each of said fibers unwound from a corresponding dummy bobbin, said tensioning devices providing tension to the corresponding fibers between said dummy bobbins and said bundle receiving units.