发明名称 Connection of a lifting arm on the drive shaft of a three-point hitch unit
摘要 <p>Connection arrangement comprises lifting arms (32, 34) with an assembly region (46, 48) having a polygonal cross-section and a lifting shaft (36) with an assembly region (42, 44) having a polygonal cross-section. The lifting arms form a polygonal connection with the lifting shaft when mounted on the lifting shaft. An independent claim is also included for a lifting shaft of a three-point attachment for an agricultural vehicle. Preferred Features: The polygonal connection has a cross-sectional shape which corresponds to an equilateral triangle with rounded sides and/or corners, especially in the form of an obiform curve.</p>
申请公布号 EP1886547(A2) 申请公布日期 2008.02.13
申请号 EP20070113738 申请日期 2007.08.02
申请人 DEERE & COMPANY 发明人 HEITLINGER, MARTIN
分类号 A01B63/10;A01B59/06 主分类号 A01B63/10
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