| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide adjustment and control of stop gaps in a hydraulic jack.SOLUTION: A first adjustable stop 230 on a jack member selectively adjusts an incline stop gap 239 while a second adjustable stop 250 on a support element 210 selectively adjusts a decline stop gap 259. Stop surfaces 235 on the first adjustable stop and the support element may define the incline stop gap, while stop surfaces on the second adjustable stop and the first adjustable stop may define the decline stop gap. The number of turns of a stop needed to effect a desired adjustment may be determined using a pitch, a lead and/or the number of starts of threads used to mount the stops.</p> |
