| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus including a linkage and a balancing mechanism coupled to the linkage around a pivotal joint.SOLUTION: The linkage 246 couples to a support structure at a first end and supports a weight applied to a second end. The balancing mechanism balances the weight applied to the second end of the linkage. As the linkage is deformed to vertically adjust the height of the weight with a different moment arm length, the balancing mechanism varies a cable path length to modify the compression of a spring 515 and a tension in a cable 501 to adjust the amount of counter balance force applied to the linkage. |
