公开(公告)号：WO2005049434B1

公开(公告)日：2005-08-11

申请号：PCT/PL2004000092

申请日：2004-11-19

Applicant: INVENTO SPOLKA Z O O ,  MILKOWSKI BOGUMIL ,  LEWANDOWSKI DARIUSZ ,  TOBOROWICZA ANDRZEJ

Inventor： MILKOWSKI BOGUMIL ,  LEWANDOWSKI DARIUSZ ,  TOBOROWICZA ANDRZEJ

IPC: B29C49/00 ,  B29C49/06 ,  B65D1/02

CPC classification number: B65D1/023 ,  B29B2911/1402 ,  B29B2911/14026 ,  B29B2911/14033 ,  B29B2911/1404 ,  B29B2911/14326 ,  B29B2911/14331 ,  B29B2911/14333 ,  B29B2911/14337 ,  B29B2911/1442 ,  B29B2911/14473 ,  B29B2911/146 ,  B29B2911/14606 ,  B29B2911/14626 ,  B29B2911/14813 ,  B29C49/0073 ,  B29C49/06 ,  B29L2031/712 ,  B29L2031/716 ,  Y10T428/1352

Abstract: This invention relates to the preform to produce a plastic container for packaging foodstuffs, and especially to blow mould thin-walled containers which can be hermetically closed with a metal lid by double seaming. The preform (1) includes a body (4) and a convex hemispherical bottom (6). The body (4) has a conical shape that flares towards a cylindrical neck (2) surrounded by a flange (3) that terminates in a thickened rim (5). Preferably, the angle (alpha) at which the internal body surface (4) flares towards the cylindrical neck is greater than the angle (beta) at which the external body surface (4) opens upwards, and the thickness (g2) of the cylindrical neck (2) is less than the thickness (g3) of the bottom (6).

Abstract translation: 本发明涉及用于生产用于包装食品的塑料容器的预成型件，并且特别涉及通过双接缝用金属盖密封地吹塑薄壁容器。 预制件（1）包括主体（4）和凸起的半球形底部（6）。 本体（4）具有朝向由终止于加厚边缘（5）的凸缘（3）围绕的圆柱形颈部（2）扩张的圆锥形状。 优选地，内部体表（4）朝向圆柱形颈部张开的角度（α）大于外部体表（4）向上张开的角度（β），圆柱形部分的厚度（g2） 颈部（2）小于底部（6）的厚度（g3）。