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Safety shield for an excavation trench

机译:开挖沟安全防护罩

摘要

The safety shield of the invention consists of a plurality of vertical columns having horizontally disposed steps extending therefrom. The vertical columns are arranged in pairs along opposite walls of the trench. Horizontal sidewall members extend parallel to the walls of the trench and are located between the steps extending from the columns. Transverse bracing members are located between and supported by the columns of each opposed pair of columns. The transverse bracing members are pivoted at their midpoint and include pivotable clevises on opposite ends thereof to facilitate assembly and disassembly. Oversized holes formed on the steps of the vertical columns, horizontal sidewall members and transverse bracing members align with one another such that a single latchpin can be used to connect all three members together. Thus, the safety shield of the invention can be assembled quickly and easily.
机译:本发明的安全防护罩由多个竖直柱组成,该竖直柱具有从其延伸的水平布置的台阶。垂直列沿沟槽的相对壁成对布置。水平侧壁构件平行于沟槽的壁延伸并且位于从柱延伸的台阶之间。横向支撑构件位于每对相对的柱的柱之间并由其支撑。横向支撑构件在其中点枢转,并且在其相对端包括可枢转的U形夹,以利于组装和拆卸。在垂直柱,水平侧壁构件和横向支撑构件的台阶上形成的超大孔彼此对准,使得单个闩锁销可用于将所有三个构件连接在一起。因此,本发明的安全防护罩可以快速且容易地组装。

著录项

  • 公开/公告号US5080533A

    专利类型

  • 公开/公告日1992-01-14

    原文格式PDF

  • 申请/专利权人 COOPER;HUGH E.;

    申请/专利号US19900579162

  • 发明设计人 HUGH E. COOPER;

    申请日1990-09-07

  • 分类号E02D17/08;

  • 国家 US

  • 入库时间 2022-08-22 05:23:27

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