| 摘要 |
A thermoplastic container or container blank having a neck (1) with a cylindrical inner wall is positioned in a predetermined angular orientation on a carrier mandrel (10) inside the neck (1), said mandrel (10) having a mandrel body (11) and a retaining member (13) actively engaging the neck (1) to secure it to said mandrel body. The retaining member (13) is freely rotatable on the mandrel body so that the neck (1) is axially secured to the mandrel body but freely rotatable thereon; a fixed abutment (14) radially projects from the mandrel body at a point thereon which is in a predetermined angular orientation and at least partially opposite a given axial portion of the inner wall of the neck (1) held on said mandrel; a radial projection (9) is at least partially located at an angularly predetermined point on the axial portion of the inner wall of the neck (1); and both the container secured to the retaining member and the mandrel body (11) are mutually rotated until the radial projection on the neck (1) engages the fixed radial abutment on the mandrel body. |
