Connecting device

A connecting device comprising:

• first and second housing parts which are rotatable relative to one another and are coupled together to define a space therebetween;
• at least one flexible ribbon cable provided in the space defined by the housing parts;
• each cable having first and second end sections which are configured to be rolled and unrolled in a spiral or helix on associated contact surfaces of the housing parts, respectively;
• the end sections normally extending in opposite directions from each other circumferentially around the housing parts so that a U-shaped turning area at which cable movement reverses is formed in the space defined by the housing parts;
• and
• means for controlling the unrolling of each cable when the cable is rolled up or unrolled on the contact surfaces as the housing parts rotate relative to one another, wherein the means for controlled unrolling include magnetic areas arranged on each cable to cause the end sections of the cable to removably adhere to the respective contact surfaces of the housing parts, wherein the magnetic areas include a magnetic coating applied to each cable, wherein the magnetic coating has a strip-shaped geometry in which strip-shaped zones with uniform magnetization extend paralled to the longitudinal extension of the cable and adjacent strips have opposite polarity.

A connecting device comprising:

• an inner housing part and an outer housing part which are rotatable relative to one another, and which are coupled together to define a space therebetween for receiving transmission mediums which are spirally wound and housed in the space defined by the housing parts;
• a plurality of flexible cables provided in the space defined by the housing parts, each cable being a spirally wound transmission cable serving as a spirally wound transmission medium;
• each cable having inner and outer ends fixed to the inner housing part and the outer housing part, respectively;
• each cable having inner and outer end sections, the inner and outer end sections normally extending in opposite directions from each other circumferentially around the inner and outer housing parts, so that a direction reversal section at which cable movement reverses is formed in the space defined by the housing parts;
• wherein the inner and outer end sections of each cable and the inner and outer housing parts have magnetic areas which cause the end sections of the cable to removably adhere to the inner and outer housing parts with the direction reversal section of the cable being positioned in the space defined by the housing parts.

A connecting device comprising:

• first and second housing parts which are being rotatable relative to one another;
• a flexible ribbon cable between the housing parts, the cable having first and second end sections which can be rolled up or unrolled in a spiral or a helix on associated contact surfaces of the housing parts, respectively;
• the cable having a middle section, the middle section having a U-shaped turning area in which winding direction of the cable is reversed;
• means for controlling the unrolling of the cable when the cable is rolled up or unrolled on the contact surfaces of the housing parts as the housing parts rotate relative to one another, wherein the means for controlled unrolling include magnetic areas of the cable and the housing parts in which the magnetic areas are arranged to cause the end sections of the cable to removably adhere to the respective contact surfaces of the housing parts, wherein the magnetic area of the cable has a strip-shaped geometry in which strip-shaped zones with uniform magnetization extend paralled to the longitudinal extension of the cable and adjacent strips have opposite polarity.

A connecting device comprising:

• an inner housing part and an outer housing part which are rotatable relative to one another, and which are coupled together to define a space therebetween for receiving transmission mediums which are spirally wound and housed in the space defined by the housing parts;
• a plurality of flexible cables provided in the space defined by the housing parts, each cable being a spirally wound transmission cable serving as a spirally wound transmission medium;
• each cable having inner and outer ends fixed to the inner housing part and the outer housing part, respectively;
• each cable having inner and outer end sections, the inner and outer end sections normally extending in opposite directions from each other circumferentially around the inner and outer housing parts, so that a direction reversal section at which cable movement reverses is formed in the space defined by the housing parts;
• wherein the inner and outer end sections of the cables have magnetic areas which cause the end sections of the cables to removably adhere to the inner and outer housing parts with the direction reversal section of the cables being positioned in the space defined by the housing parts.