Extruder head with pivotal parts

Abstract

An extruder head has a stationary head part and upper and lower head parts pivotal about respective upper and lower axes on the stationary part between inner positions closely juxtaposed with each other and with the stationary part and outer positions separated from each other and from the stationary part. Respective upper and lower latches engageable between the respective movable head parts and the stationary head part retain the movable parts against the stationary part. A crosswise latch engageable between the movable head parts retains the movable parts against each other in the inner positions thereof. The crosswise latch includes an actuator mounted on one of the movable head parts and a retaining member engageable with the other of the movable head parts. The actuator is a hydraulic cylinder having a piston rod forming the retaining member. More particularly the cylinder is mounted on the upper movable head part.

Dependencies are inferred from the claim text.