发明名称 Drawbar assembly
摘要 A drawbar assembly for transporting three point hitch implements in an elevated or lowered condition by a single point connector towing vehicle. The assembly is wheel supported and mountable between the connector of a towing vehicle and the three point connectors of a three point hitch trailing unit such as a plow or other farm implement. The three point connectors are movably mounted relative to a central supporting framework. A jack assembly and appropriate linkage interconnect the three point connectors with the framework to enable movement of the three point connectors and attached implement between an elevated carrying position and a lowered operating position. The jack assembly is operated through provision of conventional accessory drive units provided on the towing vehicle. A tongue load relieving mechanism is also provided, operatively connecting the implement and tractor to reduce the load normally transferred to the hitch members through the tongue of the drawbar assembly. Shock loads, received when the implement is in the elevated condition, are dampened through the stabilizer assembly. The drawbar assembly pivots about the axis of a pin near the tractor drawbar to avoid binding the tractor and drawbar hitch members together.
申请公布号 US4032169(A) 申请公布日期 1977.06.28
申请号 US19760693358 申请日期 1976.06.07
申请人 FILAN, ALTON N.;FILAN, A. LAVERNE 发明人 FILAN, ALTON N.;FILAN, A. LAVERNE
分类号 A01B51/04;(IPC1-7):B60D1/16;A01B59/04 主分类号 A01B51/04
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