Patent ID: 6089073
Filing Date: 2000-07-18
Classification: B21D

Abstract:
Drawing apparatus, in a forming system, comprising at least one pressure cylinder, a pressure cheek, a blank holder supported by the pressure cheek and arranged to be acted upon by the at least one pressure cylinder, wherein one of blocking devices and detents act directly onto the pressure cheek or indirectly onto the pressure cheek via an articulated mechanism selectively to maintain the pressure cheek in a secured position and thereby protect personnel from unintended movement of the pressure cheek, further comprising two fixed stops on the pressure cheek or parts moved thereby, and two motor-driven spindles, of which a first spindle, on an end area thereof away from at least one driving device, is provided with a collar, during an upward movement, to be placed behind a first fixed stop, and of which the second spindle, on an end area thereof away from the at least one driving device, is configured with the collar which, during a downward movement, is arranged to be placed behind a second fixed stop.