Patent ID: 7788811
Filing Date: 2010-09-07
Classification: A01G,Y10T

Abstract:
1. A trimming machine having a pair of blades each of which has a plurality of trimming edges along a longitudinal direction of the blades and which are reciprocated along the longitudinal direction relative to each other by a rotary power unit, comprising: a substantially cylindrical eccentric cam eccentrically rotated by the rotary power unit; and a connecting rod having an annular larger end part slidably fitted around the eccentric cam, a smaller end part pivotally attached to one of the blades, a connecting rod axis passing through a central axis of the smaller end part and a central axis of the larger end part, and a transverse axis passing through the central axis of the larger end part and extending perpendicular to the connecting rod axis and the central axis of the larger end part, wherein the eccentric cam has a peripheral cutout located on the transverse axis when the connecting rod axis is aligned with the longitudinal direction.