| 摘要 |
<p>Tensioning device suitable for providing an adjustable, balanced tension to the power-supply and multiplexing cable (1) and to the coaxial video-transmission cable (2), these cables being connected to a camera turret supported by a carriage (C) for to-and-fro translational movement in a video surveillance tunnel, each of these two cables (1, 2) being anchored in a fixed manner to the carriage (C), as well as at its point (P1, P2) of penetration into the tunnel, coming from the outside of the latter, and being rigged over the pulley of a respective tensioning pulley block (M1, M2) before being anchored to the corresponding bracket (S1, S2) of the carriage (C), these two pulley blocks (M1, M2) being connected by a small flexible cable (3) passing over idler pulleys (4, 5, 7) and a tensioning-device roller (6). <IMAGE></p> |
