Patent ID: 7220075
Filing Date: 2007-05-22
Classification: A01B,F16D,Y10S,Y10T

Abstract:
1. A coupling device, used for driving, or in drives of, agricultural implements or machinery, comprising: a first universal joint with a first outer yoke with two arms and a first inner yoke connected to the two arms of said first outer yoke; a second universal joint with a second outer yoke with two arms and a second inner yoke connected to the two arms of said second outer yoke; a connecting member for connecting the first inner yoke and the second inner yoke to one another in a rotationally fast way; a first coupling element connected to the first outer yoke in a rotationally fast way, said first coupling element including at least one first driving member; a second coupling element, said second coupling element including at least one second driving member, said second driving member driving said first and second universal joints via said first driving member; a pressure spring axially supported against and pretensioned between a supporting element and said first coupling element, said supporting element forming part of the connecting member; and a longitudinal adjusting mechanism enabling an axial displacement of the first coupling element relative to the supporting element for axially engaging or disengaging said first coupling element first driving member with said second coupling element second driving member said pressure spring biasing said first driving member into engagement with said second driving member.