Patent ID: 7310937

Claim:
A clean room chain used for a clean room, comprising: link bodies ( 10 ) each having an elastic link ( 16 ), wherein the elastic link ( 16 ) includes a polygonal connector ( 14 ) and an elastic piece ( 15 ) connected to the polygonal connector ( 14 ), wherein a polygonal recess ( 12 ) formed in a center of the link body ( 10 ) opens to a lead-in path ( 13 ), wherein the polygonal connector ( 14 ) protrudes on a side of the recess ( 12 ) opposite the lead-in path ( 13 ), wherein the polygonal connector ( 12 ) of one of the link bodies ( 10 ) is fittingly inserted through the lead-in pass ( 13 ) into the polygonal recess ( 12 ) of another corresponding one of the link bodies ( 10 ); and first and second connector units ( 20 ) to connect a parallel adjacent pair of the link bodies ( 10 ), wherein the first connector unit connects each upper end of the pair of the link bodies ( 10 ) and the second connector unit connects each lower end of the pair of the link bodies ( 10 ).