| 摘要 |
<p>The spotlight suspension includes pantographs attached at the top and bottom to a stirrup (10) and respectively. Height adjustment is provided by a manually operated pulley wheel and cable system with a gear train transmission. Two vertical cables (40, 42) may extend from the bottom pantograph axis to pulley wheels (44, 46) mounted on an axle (48) spanning the legs of the stirrup. Final drive may be transmitted by bevelled gearing (50, 52, 54) the stirrup being suspended on rollers (18) from a monorail (20).</p> |
