07-11-2013 дата публикации
Номер: US20130291467A1
Принадлежит:
Flooring material including sheet-shaped floor elements with a mainly square or rectangular shape. The floor elements are provided with edges, a lower side and an upper decorative layer. The floor elements are intended to be joined by means of joining members. The floor elements are provided with male joining members on a first edge while a second edge of the floor elements are provided with a female joining member. The male joining member is provided with a tongue and a lower side groove while the female joining member is provided with a groove and a cheek, the cheek being provided with a lip. The floor elements are provided with a male vertical assembly joining member on a third edge while a fourth, opposite, edge is provided with female vertical assembly joining member. 1. A system of surface elements forming a surface comprising: an upper surface;', 'a lower surface;', 'a first edge and a second edge, opposite said first edge, joining said upper surface to said lower surface; and', 'a third edge and a fourth edge, opposite said third edge, joining said upper surface to said lower surface;', 'wherein said third edge comprises a separate locking part positioned in a cavity, said separate locking part being formed from at least one member selected from the group consisting of a thermoplastic, a thermosetting resin, and a metal;, 'a first surface element comprisinga second surface element, comprising an edge sized and shaped to join with said first edge of said first surface element through relative rotational movement, wherein said first edge of said first surface element and said edge of said second surface element lock said first surface element to said second surface element to limit relative vertical movement; anda third surface element, comprising an edge sized and shaped to join with said third edge of said first surface element through relative vertical movement, wherein said third edge of said first surface element and said edge of said third surface ...
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