| 摘要 |
<p>A gear assembly (280) for a heavy duty spring motor (250) comprising a spring having multiple turns about a spring drive shaft (252), the spring motor adapted to be mounted to a reel (210) having hose to pay out or recoil back in, the reel mounted on a frame (14, 240, 246) supporting a spool (20) of the reel so that the spool rotates about a hub shaft, the frame adapted to support the spring motor, wherein the gear assembly operably modifies the ratio of turns of the spring motor relative to the rotations of the spool.</p> |
