Patent ID: 6813851
Filing Date: 2004-11-09
Classification: E02F

Abstract:
A quick coupling (1) for coupling a tool to a boom (3), comprisinga quick coupling part (2) at a boom side and a quick coupling part (5) at a tool side which can be latched together via a pair of spaced latching axles (7, 8) in such a way that after engagement of only a first one (7) of said two latching axles (7,8), the two quick coupling parts (2, 5) are rotated towards each other about said first latching axle (7) and then said second latching axle (8) is locked, and a power circuit coupling (13), for automatic coupling of a power connector at the tool side to a power connector at the boom side, wherein the power circuit coupling (13) has a power coupling part (14) at the boom side and a power coupling part (15) at the tool side which are arranged at the quick coupling part (2) at the boom side and the quick coupling part (5) at the tool side, such that said power coupling parts (14, 15) are brought together on a circular path about said first latching axle (7) by rotating said two quick coupling parts (2, 5) about said first latching axle (7), thus automatically coupling said two power coupling parts (14, 15); at least one of said two power coupling parts (14, 15) is mounted pivotable about an axis parallel to said first latching axle (7) and movable in a direction perpendicular to said first latching axle (7), and a linear guide (23) is associated with the power circuit coupling (13) which compensates the pivoting movement of the two power coupling parts (14, 15) when bringing said two power coupling parts (14, 15) together on the circular path about said first latching axle (7) and urges said two power coupling parts (14, 15) to a pure linear movement relative to each other on a straight line when coupling.