Patent attributes
A clean room chain comprises link bodies each having an elastic link which includes a polygonal connector and an elastic piece connected to the polygonal connector, a polygonal recess formed in a center of the link body opens to a lead-in path, the polygonal connector protrudes on a side of the recess opposite the lead-in path, the polygonal connector of one of the link bodies is fittingly inserted through the lead-in pass into the polygonal recess of another corresponding one of the link bodies. First and second connector units connect a parallel adjacent pair of the link bodies where the first connector unit connects each upper end of the pair of the link bodies and the second connector unit connects each lower end of the pair of the link bodies.