Patent ID: 6318063
Filing Date: 2001-11-20
Classification: F16G,H02G,Y10S

Abstract:
A cable drag chain comprising:a plurality of link members connected together contiguously in a bendable manner;each of the link members being molded of synthetic resin and including a pair of opposed left and right side plates, a lower connecting plate connecting lower edges of the left and right side plates, and an upper connecting plates connecting upper edges of the left and right side plates;a resiliently deformable hinge portion being provided between an end of the upper connecting plate and one of the left and right side plates and having a flexural rigidity smaller than that of the upper connecting plate;the upper connecting plate and the one side plate being formed integrally with each other via the hinge portion;the other side plate including an engagement portion for interlocking engagement with the opposite end of the upper connecting plate, the engagement portion having a recess formed in the upper edge of the other side plate and a retaining beam disposed in the recess and bridging across the recess in a longitudinal direction of the cable drag chain; anda locking portion being provided on the opposite end of the upper connecting plate and being releasably engaged in the recess of the other side plate below the retaining beam to keep the upper connecting portion in a recumbent assembled position against the resiliency of the hinge portion, said locking portion having an upwardly-projecting locking prong formed at the tip end thereof to releasably interlock with the retaining beam.