Finishing blow metallic parts of permanent molding box material and application manner null of permanent molding box

摘要

PURPOSE: To facilitate the temporary bearing operation of a permanent form material by fitting the upper edge of the joining section of permanent profiles in a single operation and fixing the upper edge of the joining section when the permanent form material is fastened temporarily. ;CONSTITUTION: A stud 4 is composed of a substrate 1 abutted against the surfaces of permanent form materials B₁, B₂, a flaw-shaped section 2 folded to the surface side of the form materials B₁, B₂ at the upper edge of the substrate 1 and a pair of clip sections 3, 3 elastically holding the form materials. Joining stepped sections D mutually fitted onto the end faces of the permanent form materials B₁, B₂ and recessed grooves C, C in rears are formed. The substrate 1 is mated with the surfaces of the two permanent form materials B₁, B₂ joined in one surface, and the clip sections 3 on the rear side of the substrate 1 are fitted into the recessed grooves C of the form materials, and driven in from the upper edge, thus holding both form materials B₁, B₂ by the substrate 1 and the clip sections 3. The flaw-shaped sections 2 on the substrate 1 are struck upwards and the substrate 1 is removed at the time of removal.;COPYRIGHT: (C)1996,JPO