| 摘要 |
<p>PURPOSE:To obtain an anchoring effect, by setting a cut notch constituted of a cavity penetrating a wall part at an end of an extruded molding to the direction of the thickness and a neck part penetrating both the cavity and the end of the extruded molding and whose width is narrower than that of the cavity and by forming a projection at the cavity whose thickness is almost the same as that of the wall part when rubbery or plastic material is poured. CONSTITUTION:After a rubbery or plastic material is molded by extrusion molding, the molding is cut to prepare a straight parts 41, 51, from the almost center part of whose bottom wall 40 a cut notch 42 is then prepared to the longitudinal direction. These straight parts 41, 51 is then set in a metal mold 6, which has a cavity 61 forming a corner part 31 and a plasticized rubbery or plastic material is poured from the supplying nozzle 62 to this cavity 61. The rubbery or plastic material being poured is filled in the cavity 61, flows to the end surface 34 of the straight parts 41, 51, then penetrates into cut notches 42, 52 and finally solidified there.</p> |
