| 主权项 |
1. An activity layer for a flooring module of the type that comprises an activity layer and a base layer,
said activity layer having a rectangular shape and including an upper surface and a lower surface and four sides; said sides extending between said upper and lower surfaces; said upper surface being adapted to be used for activities; said lower surface including first and second downwardly facing grooves, said grooves extending across the lower surface of said activity layer and being closer to two adjacent ones of said sides than the opposite ones of said sides, magnetic coupling means disposed in each of said downwardly facing grooves for being connected to a complementary magnetic coupling means on an adjacent base layer, said magnetic coupling means comprises a ferrous material, each of said magnetic coupling means comprises first and second members that are connected to each other by a pivot so that said first and second members can pivot between a first position where they can lie in substantial touching relation and a second position where they are angularly disposed relative to each other, means for connecting one of said members to the bottom of said downwardly facing groove, said other member having a distal edge which is remote from said pivot, and at least said distal edge of said second member is comprised of said ferrous material so that it can pivot around said pivot to engage a complementary magnetic coupling means on an adjacent base layer. |
