Patent ID: 6213221
Filing Date: 2001-04-10
Classification: A01B

Abstract:
A flexible frame towed agricultural implement comprising:a) a first frame section;b) a second frame section positioned adjacent said first frame section;c) a male hinge member extending from said first frame section; said male hinge member having a front wall and a rear wall and a pivot pin receiving bore extending through said front and rear walls;d) an outer cylindrical bearing sleeve secured within said male hinge member in alignment with said pivot pin receiving bore;e) a female hinge member extending from said second frame section and having a hinge clevis formed on a distal end thereof; said hinge clevis comprising front and rear hinge ears positioned in overlapping relationship with said front and rear walls of said male hinge member respectively;f) an inner flanged cylindrical bearing sleeve having a cylindrical sleeve portion and an outwardly extending flange formed at one end thereof; said inner flanged cylindrical bearing sleeve positioned within said outer cylindrical bearing sleeve such that said flange extends between said front wall of said male hinge member and said front ear of said hinge clevis; andg) a pivot pin extending through said inner flanged cylindrical bearing sleeve and said pivot pin receiving bore of said male hinge member and secured to said front and rear ears of said hinge clevis.