| 摘要 |
The invention relates to a cable ladder formed by two beams (1a) and a number of crossbars (2A), all formed by extruded profiles made of a polymeric material. The beams (1) have a channel (4a) that receives a corresponding end of the crossbars. The channel (4a) has a lower wing (5a) and an upper wing (6a). A recess (7a, 8a) of the lower wing (5a) or upper wing (6a) has a number of openings (9a) along the longitudinal direction of the beam (1). The ends of the crossbars (2A) pass through the opening (9a) of the recess (8a) and have a reduction (10A) into which a corresponding part of the channel (4a) clips. The lower wing (5a) of the beams (1a) is folded over itself via a folding line (19a), such that a final section of the lower wing (5a) undergoes a lowering by means of elastic bending when the end of the crossbar (2A) is introduced. (Fig. 2) |
