| 摘要 |
<p>Thinning-out work for grape berries is one portion of the most difficult work in a grape farm. The work is hard, and is a great distress to a grape farm as efficiency never improves. Even if many inventors try to develop a thinning-out device for grape berries, the result remains a serious problem in work for grape berries. The conclusion is defined as the best way to work by hand. According to a thinning-out hit device for grape berries, with a method for directly hitting grape berries to be removed, an impact is weakly transmitted to a stem of a bunch of grapes or other grape berries. Moreover, a hitting body for hitting is operated with an external high-capacity battery to use one blade for accuracy and various blades for rapidity in daily use.</p> |
