Patent ID: 8151960

Claim:
A coupling device for force and moment transmission, which coupling device comprises: at least one flexible element; and a plurality of force-transmitting elements that are held together by said flexible element, wherein said force-transmitting elements have a cross-section that is limited by two opposing contact sides comprising at least two opposing contact zones and two opposing side surfaces being oriented lateral to a longitudinal direction of the device, a cross-sectional dimension measured between parallel tangents for said contact sides having a first cross-sectional dimension and a second cross-sectional dimension, wherein said first cross-sectional dimension is less than said second cross-sectional dimension, in order by friction by wedge-action to be able to transmit forces and moments, wherein said plurality of elements are arranged in relation to said flexible element that, in combination and without external influence of said device, enable transmission of force(s) in two opposite torque directions, wherein a third cross-sectional dimension between said side surfaces laterally thereto is arranged to be larger than a fourth of said first cross-sectional dimension and wherein a curvature radius in said contact zones is larger than 0.4 times said first cross-sectional dimension, and wherein said flexible element is resilient in a direction that is lateral to the longitudinal direction of the force-transmitting elements, wherein said force-transmitting elements and flexible element together form a mat that can be rolled up.