Foundation device e.g. screwing foundation, for anchorage of units in ground, has cover and/or screwing coil provided with surface, where surface has surface design that hinders rotation of device after its anchorage in ground
摘要
<p>The foundation device (1) has a cover and/or a screwing coil provided with a surface, where the surface has a surface design (2) that hinders rotation of the device after its anchorage in a ground. The surface design is provided in uprisings and/or recesses. The uprisings and/or recesses are formed as an axial knurl circulating in a circumferential direction.</p>
