Patent ID: 8177543

Claim:
A demolding device for demolding a work piece from a mold comprising an upper mold component and a lower mold component with the mold components being movable relative to each other along a stroke direction, said demolding device further comprising: a hold-down element, which in the closed state of the mold is arranged at least partially between the mold components and extends toward a cavity provided for manufacturing the work piece, where it forms a portion of a shape-giving surface; a piston connected to the hold-down element and coupled in a form-fitting manner via a guide device with one of the mold components, wherein the piston (a) is movable along a first path distance w 1 , which is limited by the guide device along the stroke direction, and (b) is supported in a pivoting manner in the guide device, and wherein, at a pivoting movement, an end of the piston ( 11 ; 11 ′) that points toward the cavity is moved away from it; and a first control element that is connected to the other mold component and that blocks pivoting of at least one of the piston and the hold-down element during the first path distance w 1 .