构件呈平行四边形的平面连杆机构。它是一种铰链四杆机构﹐根据曲柄存在条件属於双曲柄机构(见图 平行四边形机构 )。
自动开关门功能是采用反平行四边形机构实现的，针对这一机构的运动特性及力学性能进行了分析并得出最佳的运动方案。
Automatic opening function is realized by contra - parallelogram mechanism. Optimal kinematic scheme is obtained by the kinematic and mechanical analysis of the contra-parallelogram.
利用平行四边形连杆和齿轮的组合设计了一种外骨骼机构。
A new type of exoskeleton mechanism has been developed by combination of parallelogram link and gear.
根据对用于镗孔加工刀具补偿的微位移技术的分析以及对柔性铰链机构的研究，研发了一套具有自主知识产权的平行四边形弹性镗杆结构的镗孔刀具微量补偿装置。
Based on the research on micro movement and elastic gemels, a boring cutter micro compensation device amounted on the parallelogram elastic boring rod is developed with self owned intelligence right.
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