Patent ID: 6453708
Filing Date: 2002-09-24
Classification: B21D,Y10T

Abstract:
A press for forming a workpiece, comprising:a press frame; a stationary press member mounted to the frame, the stationary press member being adapted to support a lower forming tool; a reciprocating press member movably supported by the frame above the stationary press member so as to be movable toward and away from the stationary press member, the reciprocating press member being adapted to support an upper forming tool positioned such that the upper and lower tools engage the workpiece therebetween when the reciprocating press member is lowered to the bottom of its stroke; a drive system for causing the reciprocating press member to execute a stroke; a safety door movable between an open position allowing operator access to the lower forming tool and a closed position preventing said access; and an actuator system for automatically moving the safety door to the closed position prior to the upper forming tool being lowered into proximity with the lower forming tool, the actuator system including a fluid supply device linked to the reciprocating press member such that downward movement of the reciprocating press member forces fluid under pressure from the fluid supply device, and a fluid-powered actuator connected to the safety door and fluidly coupled to the fluid supply device such that the fluid forced from the fluid supply device activates the actuator to close the safety door.