| 摘要 |
The device comprises a holder (4) comprising two obtuse-angled, joined rectangular hollow profiles (5,6) of different lengths, the long part (5) of which is arranged parallel to the side surface of the support (2) and adjustable horizontally on it. In its front part (6) a post holder insert (13) is longitudinally displaceably fixed. Connected to the plate is a rectangular hollow profile provided with long holes, in which a post holder insert is longitudinally displaceably and securably arranged. The short part (6) is provided with long holes (12) and the post holder insert with tapped holes. |
