The present invention relates to an opening means (1) for a closing unit (14), having a bearing (2) which can be fastened on a closing unit (14), and having two pivotable lever arm parts (3, 4), of which one circle sector-like pivoting plane is perpendicular, and a further pivoting plane is essentially parallel to the plane of the closing unit (14), wherein one lever arm part is a force arm (4) and one lever arm part is a load arm (3), characterized in that when the force arm (4) is pivoted in its circle sector-like plane which is perpendicular to the plane of the closing unit (14), the load arm (3) is simultaneously pivoted via a coupling, in the opposite direction to the force arm (4), in its circle sector-like plane perpendicular to the plane of the closing unit (14).