专利名称：Snowplow blade with spring-loaded edge flaps
发明人：Theodor Haring
申请号：US06/621514
spring framework和spring的关系申请日：19840618
公开号：US04635387A
公开日：
19870113
专利内容由知识产权出版社提供
摘要：A snowplow with a blade having a lower edge to which several spring flaps are hingeably linked. Reset springs retain the spring flaps in their working positions, and return the spring flaps to their working positions after having been deflected. To prevent overload of the reset springs, each is supported to be movable in the same sense as the pivoting direction of the associated spring flap, so that the increase in spring force, while the spring flap is being deflected, is at least partially counteracted.
申请人：HAERING; THEODOR
代理人：George E. Kersey
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