| 摘要 |
PURPOSE: A pantograph type variable safety rail is provided to improve the working time like falling of a worker and to facilitate the installation. CONSTITUTION: A pantograph type variable safety rail is composed of a vertical support(1), a horizontal support(2), an upper connecting member(30), a lower connecting member(31), an operating cylinder(5), and a control box(6). The vertical support is installed on a workbench(10). The horizontal support is connected to the upper end of the vertical support. The upper connecting member connects the vertical support and the horizontal support. The lower connecting member is installed in the lower end of the vertical support. The operating cylinder moves the vertical and horizontal supports up and down. The control box operates the control box. |
