| 摘要 |
<p>The tractive line (7) for lifts has a mechanism for pulling it in or letting it out, and on the line is positioned a return spring (4). The line is wound on a drum (6) provided with a centrifugal force brake weight (10) which has a cam-type projecting brake surface. When the line (7) is being paid out, the brake surface grips in the mechanism casing interior, and a brake caliper (25) is used when the line is being drawn in, moving automatically to an operating position and causing the cam-type projection to pull away from the casing interior.</p> |
