| 摘要 |
In a support element with a flexible or inclinable head portion which faces a surface which is to be supported, the head portion is able to adapt to any changes in shape or position in order to maintain a parallel gap between the surface and the head portion. In order to support the head portion towards the surface which is to be supported, at least one pressure chamber is provided which can be acted upon by a pressure medium so that the force produced by this action of pressure medium acts on the head portion in the direction stated. A measuring device is provided, for measuring the size of the gap between the head portion and the surface to be supported. The pressure in the pressure chamber is regulated as a function of the measured size of the gap. |
