| 摘要 |
The invention relates to a supporting frame comprising at least one pair of legs (1), whereby the pair of legs consists of two particularly pivotable contiguous legs. In one leg (3) there is a pull-out support (4). The support (4) bears a supporting unit (5), for example, a roller or a table support which is especially pivotable around the point of engagement. The support (4) can be fixed in different pull-out positions on the leg (3) and is protected against complete extraction from the leg (3) by means of a tongue (17) knocking against a resistance. The aim of the invention is to provide a continuously reliable protection against the extraction of said support. The tongue (17) is thus formed with a hook (18) on the free end thereof. When extracting the support (4) from the leg (3), the hook (18) glides along the supporting wall (4') and enters a supporting wall recess (19) in order to catch onto the recess wall (21). |
