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1. 发明授权

US06202327B1 Ice scraper having non-rotary tools with shielded cutting inserts 失效
标题翻译：冰刮刀具有带有屏蔽切削刀片的非旋转工具
公开(公告)号：US06202327B1
公开(公告)日：2001-03-20
申请号：US09305333
申请日：1999-05-05
申请人： Gary A. Fuller , Roland Thomas Disinger , Larry J. McSweeney
发明人： Gary A. Fuller , Roland Thomas Disinger , Larry J. McSweeney
IPC分类号： E01H400
CPC分类号： E01H5/12
摘要： A vehicle-mounted ice-scraping mechanism includes a tool carrier mounted on the vehicle, and a plurality of non-rotatable ice-scraping tools mounted on the tool carrier and depending downwardly therefrom. Each tool includes a shank mounted to the tool carrier, and a cutting head depending downwardly from the shank. The cutting head is formed of a steel main body, and a carbide insert is mounted in the steel body at a location spaced from a front end of the steel body. During a wear-in period, front and bottom surfaces of the steel body define a rake face and a clearance face, respectively, of the tool. After the wear-in period, front and bottom surfaces of the insert define the rake face and clearance face, respectively. The tool is oriented such that the shank and the rake face extend upwardly and forwardly to define a positive rake angle. The tool shanks are cylindrical and are mounted in cylindrical bores in the tool carrier. The cutting heads are situated so closely together that they abut one another and thereby prevent rotation of the tools relative to the tool carrier.
摘要翻译：车载式刮冰机构包括安装在车辆上的工具架，以及安装在工具架上并从其向下倾斜的多个不可旋转的刮冰工具。每个工具包括安装到工具托架上的柄和从柄部向下悬垂的切割头。切割头由钢主体形成，并且碳化物刀片安装在钢体中与钢体前端隔开的位置处。在磨损期间，钢体的前表面和底表面分别确定了工具的前刀面和间隙面。磨损期后，刀片的前下表面分别定义了前刀面和间隙面。工具被定向成使得柄和前刀面向上和向前延伸以限定正的前角。工具柄是圆柱形的，并且安装在工具架中的圆柱形孔中。切割头紧密地定位在一起，使得它们彼此邻接，从而防止工具相对于工具架的旋转。

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