MAST DEVICE OF FORK LIFT PROVIDED WITH HINGED FORK

摘要

PROBLEM TO BE SOLVED: To forcibly press a specific structures downward using the degree of the freedom of a hinged fork. SOLUTION: A carriage 5 is mechanically locked to an outer mast 3 to make the outer mast 3 bear the upward reaction applied to the carriage 5 when a specific structure is pressed downward by hinged forks. A locking device 25 is arranged in the carriage 5, and a lock pin 21 is projected by a lock cylinder 22 to be engaged with the lock groove 14 formed in a side bar 13 on the side of the outer mast 3.