Building board and manufacturing method thereof
AssigneeNichiha Corporation
InventorMorimichi Watanabe
Life of this patent
Estimating the term…
Abstract
A building board which is provided on the surface thereof with a concave and convex pattern, and opposite sides thereof with overlying rabbeted portions (2-1, 6-1, 6-2) and underlying rabbeted portions (3-1, 3-2, 5-1), respectively, wherein each overlying rabbeted portion (2-1, 6-1, 6-2) is constituted by one end portion of the convex portion (2, 6) of said pattern; each underlying rabbeted portion (3-1, 3-2, 5-1) is constructed to have an area bigger than the area of corresponding overlying rabbeted portion (2-1, 6-1, 6-2) bearing said convex portion and formed on the opposite side; and each of said opposite sides is provided on the rear side thereof with a linear contact surface (7-1, 7-2).
Claims6
A building board comprising:
- a front surface having a protruding and recessed pattern;
- and
- opposite ends having at least one overlying rabbeted portion and at least one underlying rabbeted portion for respectively overlapping and fitting under corresponding underlying and overlying rabbeted portions;
- wherein at least one overlying rabbeted portion is formed by one end portion of a protruding portion of said pattern;
- each underlying rabbeted portion is constructed to have an area bigger than an area of a corresponding overlying rabbeted portion formed by said protruding portion of said pattern on the opposite end;
- and each of said opposite ends is provided with a linear end contact surface adjacent to a rear surface of said building board for matching with a corresponding end contact surface on an end of another building board, sad end contact surfaces having a constant height.
A building board comprising:
- a front surface having a protruding and recessed pattern;
- and
- opposite ends having at least one overlying rabbeted portion and at least one underlying rabbeted portion for respectively overlapping and fitting under corresponding underlying and overlying rabbeted portions;
- wherein an overlying rabbeted portion at a first end is formed by one end portion of a protruding portion of said pattern and an overlying rabbeted portion at a second end is formed by a cutout portion of a rear surface of the building board;
- an underlying rabbeted portion on the first end is formed by a cut-out portion in the front surface of the board and an underlying rabbeted portion at the second end is formed by a recessed portion of the pattern.
Dependencies are inferred from the claim text.