Surface unit fixing device for space frame work, has base plate that is attached at support construction, and surface units fitted at base plate in third position of twist lock

摘要

The device has a base plate (20) that is attached at a support construction. A set of surface units (13a, 13b) is provided, where one surface unit is fitted at the base plate in one position of a twist lock. Another surface unit is fitted at the base plate in another position of the lock. The two surface units are fitted at the base plate in a third position of the lock. The surface units are supported on the plate by a teflon disk.