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Adjustable corn head

阅读:572发布:2021-06-02

专利汇可以提供Adjustable corn head专利检索,专利查询,专利分析的服务。并且This disclosure relates to an improvement in corn heads for a forage harvester and provides a first pair of asymmetrical stationary knives coacting with a moving cutter knife for directing and severing stalks and wherein a second pair of knives can be substituted for said first pair of knives to direct stalks to a different portion of said moving cutter knife thereby permitting the forage harvester and/or towing tractor to be shifted laterally to keep one or both from running on a harvested row. A further part of this disclosure relates to a two-row corn head and with the use of a first asymmetrical pair of stationary cutting knives and a dissimilar asymmetrical pair of knives which can be substituted for the first asymmetrical pair in either row, a simple corn head is provided which can be readily adjusted for handling crop rows of various spacings by simply re-arranging the stationary knives.,下面是Adjustable corn head专利的具体信息内容。

1. A row crop header for a forage harvester including a frame defining first and second transversely spaced crop receiving throats, a transversely extending sickle bar having two sets of sickle sections each having first and second sections reciprocally carried on said frame with one set being positioned in said first throat and the other set being positioned in said second throat, a first pair of stationary blades mounted on said frame in transversely spaced relation to each other and coacting with one set of sickle sections in said first throat for severing crop material passing between said first pair of stationary blades, said first pair of stationary blades being asymmetrical so that crop material passing therebetween is directed to said first sickle section of said one set, a second pair of stationary blades mounted on said frame in transversely spaced relation to each other and coacting with the other set of sickle sections in said throat for severing crop material passing between said second pair of stationary blades, sAid second pair of stationary blades being asymmetrical the opposite of said first pair so as to direct material to said second sickle section of said other set, said first and second pairs of stationary blades being spaced to handle row crop of relatively wide row spacing and being interchangeable to handle row crop of relatively narrow row spacing and a third pair of blades identical to said first pair of blades interchangeable with said second pair of blades to handle row crop of intermediate row spacing.
2. A row crop header as recited in claim 1 and wherein each stationary blade is constructed to provide an L-shaped cross-section having a first portion extending vertically for fastening said stationary blade to said frame and a second portion extending from said first portion at an angle slightly greater than 90* with a rear part of said second portion being bevelled to present a cutting edge, said sickle sections being mounted in overlying contacting and coacting relation to said cutting edge for severing crop material positioned between said stationary blades and said sickle sections.
3. A row crop header as recited in claim 1 and wherein each stationary blade is provided with a vertical flange for fastening same to said frame and each flange is provided with a series of vertically oblong holes for receiving fastening members so that each stationary blade can be adjusted vertically to make cutting contact with said sickle bar.
4. A row crop header as recited in claim 1 and wherein each stationary blade is provided with a leading crop guiding portion trailed by a cutting portion coacting with said sickle bar for cutting the crop material.
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