| 摘要 |
<p>A portable workbench comprising a worktop structure and a collapsible supporting structure. The working surface is formed by two vice beams, one of which is fixed, while the other can be moved by two clamping screws to clamp a workpiece between the beams. The supporting structure comprises two frames pivoted to the top structure and connected by a pair of rigid links; the various pivot points are so positioned that, although the frames are symmetrically spaced apart when the bench is in use, they lie parallel to one another and to the working surface when the bench 18 collapsed. Each frame is also provided with a pair of retractable lower legs; when these are in use, the worktop is at roughly the height of a normal workbench, while when the lower legs are retracted, the bench is at a convenient height for use as a sawhorse. It is possible to fold the bench for storage with the lower legs in either of their positions. The bench can conveniently be sold as a collection of five major sub-assemblies, which are assembled by the customer.</p> |
