Patent ID: 9212483
Filing Date: 2015-12-15
Classification: E04B,E04F

Abstract:
1. A double-floor construction, comprising: floor plates; and a support structure to be built on a subfloor, the floor plates being placeable on the support structure with edges of the floor plates abutting each other, wherein the support structure comprises support rails, which extend underneath the butt joints between the floor plates and along the butt joints and which are held at a certain distance from the subfloor by uprights of the support structure, the uprights being configured to be arranged underneath corners of the floor plates; and the floor plates and the support rails comprise contrivances to allow the floor plates to be set vertically down onto the support rails under horizontal compression of the edges of the floor plates forming the butt joints, wherein each of the support rails comprises a horizontal channel extending under an associated butt joint, wherein the contrivances of the floor plates are hooking sidepieces formed on the edges of the floor plates, the hooking sidepieces being vertically insertable into the channel so that the hooking sidepieces of the abutting floor plates lock into place within the channel when vertically inserted and secure the floor plates against movement in both vertical directions by locking projections.