| 摘要 |
This invention provides for a modified mechanism for an adjusting valve coupled to a hydraulic cylinder of a stepper exercise type machine. In particular, there is provided a rotational joint mounted on opposing ends of a valve with a flexible duct located between the opposing joints. A ball roller contacts the flexible duct within the valve responsive to a rotation of a pressure adjusting rod. The rotational joints on opposing ends of the valve may be mounted directly to the oil guide holes of respective hydraulic cylinders or positionally fitted to an extension duct. In this manner, the distance between the hydraulic cylinders may be adjusted by the manufacturer or user and through use of the flexible duct allows the hydraulic cylinders to alternately provide rotative displacement.
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