Connection device e.g. screw, for backrest of seating device, has flange units attached to backrest and fastening structure, and flexible unit arranged between units such that two different flexibility of units develops with each other
摘要
<p>The device has flange units (4, 5) attached to a backrest of a seating device and a fastening structure. A flexible unit (6) is arranged between the flange units in such a manner that two different flexibility of both flange units develops with each other. The flexible unit causes a small resetting moment at the flange units against pressure on the upper area of the backrest than the pressure on the lower area of the backrest.</p>
