The existence of extreme positions angle is a significant mark for the mechanism with quick return characteristic.
而极位夹角的存在是机构具有急回特性的一个明显标志。
The characteristic of quick-return of offset double crank slider mechanism was analyzed in this paper. The synthesis method and curve of this mechanism with minimum transmission angle were presented.
本文分析偏置双曲柄滑块机构的急回运动特性，给出了按最小传动角设计偏置双曲柄滑块机构的设计方法和设计曲线。
Practical application, the quick return characteristic of four bar linkage mechanism is utilized to shorten non-productive time and increase efficiency.
在实际生产中，四杆机构常利用急回特性缩短非生产时间，提高效率。
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