| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a sheet material using a code containing edge material or the like produced in a tire manufacturing process as a raw material and extremely excellent in strength such as pressure breaking resistance or the like especially against large load. <P>SOLUTION: A material sheet (2) containing codes (31) and having required thickness and a required shape is formed by heating and pressurizing the raw material (1) and the material sheet (2) is cut into a size possible to keep a sheet shape, to produce a large number of sheet pieces (3). The amount of the sheet pieces is specified so as to become the same weight as the sheet material being a predetermined molded product and the whole amount of the sheet pieces are laminated in the thickness direction of the sheet pieces so as to fill the space of a mold having a sheet material moldable space to be put in the mold. The sheet pieces put in the mold in a laminated state are heated and pressurized from the front and rear sides of the sheet pieces to bond the codes and a rubber part to mold them. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
