Gewichtsausgleichsvorrichtung.

摘要

The invention relates to a balancing device for a two-component supporting arm arrangement for an X-ray unit, with a first and a second supporting arm. The one end of the first supporting arm is mounted pivotably about a horizontal first shaft on the X-ray unit. The other end is connected pivotably about a second shaft to the one end of the second supporting arm, at whose other end an apparatus is secured. In order to obtain a balancing device which is of simple and straightforward construction and is therefore relatively inexpensive, the invention proposes that each supporting arm (7, 8) be provided in each case with a lever arm (12, 13) which is part of a parallelogram system whose connection nodes (15 to 18) are arranged at the free end of the lever arm (12) on the first supporting arm (7), on the second shaft (10) and at the free end of the lever arm (13) of the second supporting arm (8), the remaining connection nodes (18) in the parallelogram system being acted upon by a force which acts as a balance for the supporting arm arrangement (7, 8) around the first shaft (9), so that the supporting arm arrangement is balanced in every position. ……