| 摘要 |
For protecting cables, service lines and the like particularly in longwall face mining, an articulated arrangement is formed from a plurality of interconnected links. Each link has a central web (10) forming the common base for a pair of laterally open channels (16,18) on respective sides. At least some of the links have each channel side (12,14) formed with an inwardly extending bulge (28) which thereby define an entrance (30,32) for the respective channel of less width than the width of the respective channel. The apparatus is substantially formed of a plastics material with the channel sides being resiliently flexible whereby a cable or service line can be inserted into a respective one of the channels (16,18) by deflecting the channel legs apart. After the cable or service line passes through the channel entrance, the channel sides (12,14) regain their original position and prevent the line from moving inadvertently out of the channel. |
