Patent ID: 8969724
Filing Date: 2015-03-03
Classification: H01B,Y10T

Abstract:
1. An elastic signal transmission cable having an elasticity of 10% or more and transmission loss of 10 dB/m or less in a relaxed state at 250 MHz, and comprising an elastic cylindrical body having an elasticity of 10% or more and a conductor portion containing at least two conductor wires wound in parallel in the same direction around the elastic cylindrical body, wherein a wound diameter and winding pitch of the conductor wires are 0.05 to 30 mm and 0.05 to 50 mm in a relaxed state, respectively, an interval (d) between proximal conductor wires, which is defined as an average value of distance between the centers of proximal conductor wires measured in a relaxed state at 30 arbitrary locations, is 0.01 to 20 mm, and a variation r (a difference between the maximum value and minimum value) in the interval between proximal conductor wires is such that 0≦r≦4d, and wherein the conductor portion contains an insulating filamentous body alternately passing over the outside and inside (elastic cylindrical body side) of a single or plurality of conductor wires and wound in the opposite direction of the conductor wires.