Unboarding device for a formwork element

An unboarding device for a formwork element, comprising a base element, a tension/compression rod, and at least one boarding/unboarding element to extend or retract the at least one boarding/unboarding element coupled laterally with the base element through a linear movement of the tension/compression rod essentially parallel to its rod axis relative to the base element into a boarding or unboarding position, wherein the unboarding device comprises:

• a) a first unboarding element that includes a contact element and a cylinder section of a lifting device rigidly arranged to the contact element, the lifting device being drivable by a drive unit, wherein the contact element is designed such that a piston end section of the lifting device can move away from the base element when the cylinder section supports itself on the base element through the contact element, and
• b) a second unboarding element that includes an arm reversibly attachable to a rod end section of the tension/compression rod and, in the attached state, extending from the tension/compression rod, and a tilting element rotatably coupled to the arm around a tilting axis, wherein the tilting element is rotatably couplable to the piston end section of the lifting device around a joint axis and is designed to be able to support itself on the base element when the piston end section moves away from the formwork element, wherein when the arm is attached to the rod end section, a first lever arm extending perpendicular to the rod axis and the tilting axis between the rod axis and the tilting axis has a first lever arm length smaller than a second lever arm length of a second lever arm extending between the rod axis and the joint axis, which second lever arm being perpendicular to the rod axis and the joint axis.