CONNECTING UNIT AND MAT OF DETACHABLE FLOORING Russian patent published in 2010 - IPC A47G27/02 E01C13/04 

FIELD: construction.

SUBSTANCE: intended for application in manufacturing of floorings. Connecting unit comprises part of one flooring element provided with hole and pin of the other attached element arranged in this hole with facilities of fixation in the form of long tabs that surround through axial channel of rod and are bent till contact with side surface of hole by central spacer rod. Rod is inserted into channel between tabs on side opposite to their ends. Mat comprises upper and lower surfaces with upper and lower shelves arranged along edges with thickness that is less than mat thickness. Upper shelves are equipped with vertical pins that protrude downwards, and lower shelves comprises holes for the possibility of coupling with similar pins of another mat in process of flooring assembly by superposition of upper shelves of one mat over lower shelves of the other one. Pin comprises axial channel with flexible longitudinal tabs arranged along periphery. Free end part of pin produced by tabs in cross dimension is less than according section of hole, with the possibility to open as rod element is inserted into channel, which exceeds its cross dimension. Channel is equipped with through expanded section in upper shelf.

EFFECT: improved operational characteristics of detachable flooring.

15 cl, 10 dwg