Patent ID: 9541160
Date: 2017-01-10
CPC Classifications: F16G

Claim:
1. An anti-backbend chain comprising a plurality of alternate chain links having chain link plates, wherein the chain link plates of neighbouring chain links are joined by respective chain hinges; wherein a spring element comprising at least a first spring arm is provided, the spring element obstruct bending of the anti-backbend chain in a first pivot direction, wherein the spring element encircles a chain hinge, the first spring arm extending from a first vertical side of the chain hinge to the first vertical side of a neighbouring chain hinge and is movably in contact therewith under the biasing force of the spring element; and wherein a stiffening means is provided, which stiffens the anti-backbend chain in a second pivot direction, and that, for defining the stiffening means, chain link plates of neighbouring chain links include support portions for stiffening the anti-backbend chain in the second pivot direction.