A plurality of interlocking tile pieces form a generally flat traffic-carrying surface. The tile are locked together in a manner to form a plurality of non-bendable tile joints. The tile includes a hinge or fold line along a first axis and a hinge or fold line along a second axis. The hinges allow t
A plurality of interlocking tile pieces form a generally flat traffic-carrying surface. The tile are locked together in a manner to form a plurality of non-bendable tile joints. The tile includes a hinge or fold line along a first axis and a hinge or fold line along a second axis. The hinges allow the multi-tile traffic carrying surface to be rolled up into a hollow tube from any direction along one of the axes, beginning at any edge of the traffic carrying surface. The rolled-up floor covering is made up of a plurality of tile panels.
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1. Tile for use in forming a generally flat and multi-tile traffic-carrying surface, said tile comprising: a generally planar and square structural member having a 4d-by-4d outer dimension and having a top traffic-carrying surface and a bottom surface; said square structural member having a first e
1. Tile for use in forming a generally flat and multi-tile traffic-carrying surface, said tile comprising: a generally planar and square structural member having a 4d-by-4d outer dimension and having a top traffic-carrying surface and a bottom surface; said square structural member having a first edge, a second edge that is parallel to said first edge, a third edge, and a fourth edge that is parallel to said third edge; locking members located on said first, second, third and fourth edges for locking said tile to adjacent tile in a manner to form a generally non-bendable tile joint between said tile and said adjacent tile; a first set of two bend line areas formed in said tile, said two bend line areas of said first set being parallel to, and located at a distance d from, said first and second edges respectively; a second set of two bend line areas formed in said tile, said two bend line areas of said second set being parallel to, and located at a distance d from, said third and fourth edges respectively; such that a multi-tile traffic carrying surface having a plurality of said tile locked together can be rolled up, beginning at any edge of the traffic carrying surface, into a tube having an axis; said tube having tile panels of a width 2d that extend parallel to said axis. 2. The tile of claim 1 wherein said top surface is generally parallel to said bottom surface. 3. The tile of claim 1 wherein said top surface includes a relatively high friction surface pattern. 4. Tile for use in forming a generally flat and multi-tile traffic-carrying surface, said tile comprising: a generally planar and square structural member having a 4d-by-4d outer dimension and having a top traffic-carrying surface and a bottom surface; said square structural member having a first edge, a second edge that is parallel to said first edge, a third edge, and a fourth edge that is parallel to said third edge; locking members located on said first, second, third and fourth edges for locking said tile to adjacent tile in a manner to form a generally non-bendable tile joint between said tile and said adjacent tile; a first set of two bend line areas formed in said tile, said two bend line areas of said first set being parallel to, and located at a distance d from, said first and second edges respectively; a second set of two bend line areas formed in said tile, said two bend line areas of said second set being parallel to, and located at a distance d from, said third and fourth edges respectively; such that a multi-tile traffic carrying surface having a plurality of said tile locked together can be rolled up, beginning at any edge of the traffic carrying surface, into a tube having an axis; said tube having tile panels of a width 2d that extend parallel to said axis wherein said first and second bend line areas include bend lines formed in said top surface. 5. The tile of claim 4 wherein said tile is formed of a plastic material and wherein said bend lines are embossed into said top surface. 6. The tile of claim 4 wherein said first and second bend line areas including: stiffeners formed on said bottom surface of said tile in a manner to form a first set of two bend channels that do not include said stiffeners and that form said first set of bend line areas in said tile, and in a manner to form a second set of two bend channels that do not include said stiffeners and that form said second set of bend line areas in said tile. 7. The tile of claim 6 wherein said stiffeners include stiffening walls extending from said bottom surface. 8. The tile of claim 4 including: a first side wall extending downward a given distance from said first edge of said square structural member; a second side wall extending downward said given distance from said second edge of said square structural member; a first set of two bend notches formed in said first and second side walls respectively, said two bend notches in said first and second side walls being respec tively positioned to coincide with said first set of bend line areas; a third side wall extending downward said given distance from said third edge of said square structural member; a fourth side wall extending downward said given distance from said fourth edge of said square structural member; and a second set of two bend notches formed in said third and fourth side walls respectively, said two bend notches in said third and fourth side walls being respectively positioned to coincide with said second set of bend line areas. 9. The tile of claim 4 including: stiffeners formed on said bottom surface of said tile in a manner to form a first set of two bend channels that do not include said stiffeners and that cooperate with said first set of bend line areas in said tile, and in a manner to form a second set of two bend channels that do not include said stiffeners and that cooperate with said second set of bend line areas in said tile; a first side wall extending downward a given distance from said first edge of said square structural member; a second side wall extending downward said given distance from said second edge of said square structural member; a first set of two bend notches formed in said first and second side walls respectively, said two bend notches in said first and second side walls being respectively positioned to coincide with said first set of bend line areas in said tile; a third side wall extending downward said given distance from said third edge of said square structural member; a fourth side wall extending downward said given distance from said fourth edge of said square structural member; and a second set of two bend notches formed in said third and fourth side walls respectively, said two bend notches in said third and fourth side walls being respectively positioned to coincide with said second set of bend line areas in said tile. 10. The tile of claim 9 wherein said stiffeners include stiffening walls extending from said bottom surface of said tile. 11. The tile of claim 10 wherein said tile is formed of a plastic material and wherein said bend line areas include bend lines that are embossed into said top surface of said tile. 12. A method of making a generally rigid and flat floor that can be rolled up into a hollow tube for storage, comprising the steps of: providing a plurality of rigid, flat, and square tile; interlocking said plurality of tile to form a generally rigid and flat floor; providing that said plurality of tile are interlocked in a manner to form a plurality of generally non-bendable tile joints; providing that each of said tile has a 4d-by-4d outer dimension; providing two bend line areas in each of each of said tile parallel to, and at a distance d from, a first tile edge and its opposite tile edge; and providing two bend line areas in each tile parallel to, and at a distance d from, a second tile edge and its opposite tile edge; such that said generally rigid and flat floor can be rolled up into a hollow tube having an axis, beginning at any edge of said flat floor; said hollow tube being made up of flat panels having a width of 2d that extend parallel to said axis of said tube. 13. Tile for use in assembling a multi-tile floor that can be rolled up into a hollow tube, said tile comprising: a unitary and rigid tile member having a 90-degree quadrilateral planar shape; said rigid tile member having a first width-edge, an opposite width-edge, and a width W; said rigid tile member having a first length-edge, an opposite length-edge, and a length L; a first bend line area formed in said rigid tile member parallel to said first width-edge and spaced from said first width-edge by a distance W/4; a second bend line area formed in said rigid tile member parallel to said opposite width-edge and spaced from said opposite width edge by a distance W/4; a third bend line area formed in said rigid tile member parallel to said first length-edge and spaced from said first leng th-edge by a distance L/4; a fourth bend line area formed in said rigid tile member parallel to said opposite length-edge and spaced from said opposite length-edge by the distance L/4; and tile interlocking means formed on said first width-edge, said opposite width-edge, said first length-edge and said opposite length-edge for use in forming generally non-bendable tile joint lines between adjacent tile of said multi-tile floor. 14. The tile of claim 13 wherein said 90-degree quadrilateral planar shape is a square. 15. The tile of claim 13 wherein said rigid tile member includes a bottom surface, and tile stiffeners formed in portions of said bottom surface exclusive of said first, second, third and fourth bend line areas. 16. The tile of claim 13 wherein said 90-degree quadrilateral planar shape is a square. 17. Tile for use in assembling a multi-tile floor that can be rolled up into a hollow tube as desired, said tile comprising: a unitary and rigid tile member having a 90-degree quadrilateral planar shape; said rigid tile member having a first width-edge, an opposite width-edge, and a width W; said rigid tile member having a first length-edge, an opposite length-edge, and a length L; a first bend line area formed in said rigid tile member; said first bend line area being selectively located either parallel to said a first width-edge and spaced from said first width-edge by a distance W/4, or parallel to said first length-edge and spaced from said first length-edge by a distance L/4; a second bend line area formed in said rigid tile member; said second bend line area being located parallel to said opposite width-edge and spaced from said opposite width edge by a distance W/4 when said first bend line area is located parallel to said a first width-edge and is spaced from said first width-edge by said distance W/4; said second bend line area being located parallel to said opposite length-edge and spaced from said opposite length edge by a distance L/4 when said first bend line area is located parallel to said first length-edge and is spaced from said first length-edge by said distance L4; and tile interlocking means formed on said first width-edge, said opposite width-edge, said first length-edge and said opposite length-edge for use in forming generally non-bendable tile joint lines between adjacent tile of said multi-tile floor. 18. The tile of claim 17 wherein said 90-degree quadrilateral planar shape is a square. 19. The tile of claim 17 wherein said rigid tile member includes a bottom surface, and tile stiffeners formed in portions of said bottom surface exclusive of said first and second bend line areas. 20. The tile of claim 17 wherein said 90-degree quadrilateral planar shape is a square.
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