| 摘要 |
The invention relates to a drag chain for guiding hoses, cables, and the like, comprising a number of chain links (1) which are connected to one another in an articulated manner and which are formed by parallel link plates (11, 12) that are connected into parallel link plate sections and by cross members (31) which connect said link plates. The link plates can be pivoted relative to one another about a pivot axis which is common to each two adjacent link plates. The drag chain can be moved so as to form a loop with an upper run, a lower run, and a deflection region which connects said upper run and lower run, whereby an inner face and an outer face are defined on the chain links with respect to the loop. The cross members (31a) on the outer face of the chain links (1) can be released from the link plate at least at one end and pivoted in order to open the chain link (1), whereas the cross members (31i) on the inner face of the chain links are rigidly connected to the link plates. Rollers (21) are introduced into at least some of the link plates, and the rollers protrude out of the narrow faces (17) of the link plates and can roll on the narrow faces (17) of the link plates of the opposite run when the chain is moved. The rigid connection of the cross members (31i) is produced on the link plate surfaces facing the interior of the chain link. |
