PROBLEM TO BE SOLVED: To provide a simple lock device easy to use and a cage carriage with door equipped with the same.;SOLUTION: One end of a lock lever is retained to a horizontal pipe of one side door of double doors, which open outward and are constituted of a lattice of vertical and horizontal pipes, with a hooking tool freely turnably at least in a plane parallel to a plane vertical to the door surface, and the other end of the lock lever is hooked to a horizontal pipe of the other door with the hooking tool crossing the joint part of the doors from this lock part.;COPYRIGHT: (C)2007,JPO&INPIT
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