US Patent 7322641 Two-step connecting element

A device positioned within in a chair, especially a chair with an adjustable back of the chair and head rest, is disclosed. The device is configured such that between a section of the head rest and an attachment section on the chair construction is arranged a connecting element with, for example, a rod, which by movement of the adjustable back of the chair is arranged to affect the angle of the head rest in relation to the back of the chair. Further, the head rest, through use of a blocking device and a coupling organ which come into effect in the reclined position of the back of the chair, may be so adjusted either in a manual or automatic way.