| 摘要 |
<p>The present invention relates to a cable tray. The convenience of a construction and the productivity of manufacturing a cable tray are maximized by improving the structure of a rung which supports a pair of side rails of the cable tray. In a cable tray which includes a pair of side rails to provide a cable tray for facilitating a post work such as installation change and dismantling, and a rung combined with a gap between the side rails, the lower end part of the side rail has an″U″-shaped bending part. The end part of the bending has an extension part (13) which is vertical to the side (12) of the side rail. A pair of side rails (10) is symmetrical to each other. A bending part (22) is formed in the lengthwise direction of the lower side. An extension part (13) has a hollow C-channel shape which is opened in the lengthwise direction and is extended to the end of the bending of the side rail (10). A slit (21) receives the extension part. Both sides of the slit are perforated. A rung (20) is symmetrical on an opposite side. The extension part (13) of the side rail is inserted into the slit (21) of the rung (20). A piece (30) penetrates the extension part of the side rail inserted into the slit.</p> |
