| 摘要 |
<p>The invention refers to a lifting device, comprising at least one fixed column and one slide, characterised by the fact that it comprises two parallel U-guides fixed in positions opposed to said column, and two pairs of strikers integral with the slide suitable for coming into contact respectively with each of the U-guides, each striker comprising one bushing fixed to the slide which bears, by means which confer them with mobility in a direction perpendicular to the guide, a pin realised in an antifriction material and suitable for insertion in the context of the guide. <IMAGE></p> |
