| 摘要 |
A beating device for a grape harvesting machine for the harvesting of grapes from a row of grapevines. The beating device comprises a pair of beaters mounted on the harvesting machine in opposing relationship to define thereinbetween a longitudinal space for the passage of a row of grapevines. Each of the beaters comprises a plurality of vertically spaced, horizontally disposed whips, the ends of which are mounted to a lever which, in turn, is pivotally carried by a first eccentric so as to impose a transverse beating action to the whips. A first shaft, rotatable about a vertical axis, carries the eccentric while the eccentric carries an arm member attached to an adjustable resilient return means which functions to automatically return the whip toward the longitudinal space with the resilient force increasing in response to the resistance of the whip when the same engages a grapevine offset from the normal plane of the row of grapes. The other end of the lever is attached by means of a connecting rod to a second eccentric mounted to and rotatable with a second vertical shaft. Motor means are provided for driving the second shaft. |
