Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE511478ApublicationCriticalpatent/BE511478A/fr
Priority claimed from US244350Aexternal-prioritypatent/US2763229A/en
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
B21D43/02—Advancing work in relation to the stroke of the die or tool
B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
B21D43/105—Manipulators, i.e. mechanical arms carrying a gripper element having several degrees of freedom