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CN100482540C - 由热塑性材料制成的具有拱顶形基底的容器 - Google Patents

由热塑性材料制成的具有拱顶形基底的容器 Download PDF

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CN100482540C
CN100482540C CNB2004800203994A CN200480020399A CN100482540C CN 100482540 C CN100482540 C CN 100482540C CN B2004800203994 A CNB2004800203994 A CN B2004800203994A CN 200480020399 A CN200480020399 A CN 200480020399A CN 100482540 C CN100482540 C CN 100482540C
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米歇尔·布科布扎
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/0261—Bottom construction
    • B65D1/0276—Bottom construction having a continuous contact surface, e.g. Champagne-type bottom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/12—Cans, casks, barrels, or drums
    • B65D1/14—Cans, casks, barrels, or drums characterised by shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • B65D1/46—Local reinforcements, e.g. adjacent closures

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Floor Finish (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明涉及一种具有拱顶形底部类型的由热塑性材料(3)制成的容器(1)，它包括中央凸出的小突起(4)、周边承载区域(5)以及从中央小突起延伸至承载区域但是没有在其中的设有肋(7)的中间拱形部(6)，肋(7)具有一二面角形式，它在与容器的轴线(1a)基本上平行的中间面(7c)中具有V形直的截面并且没有中断地延伸进入彼此之中。肋(7)具有弯曲的纵向轮廓，这些肋的底部(7d)在其靠近中央小突起(4)的区域中高于所述中央小突起的底部地延伸，并且肋的底部(7d)和顶峰(7e)在其靠近承载区域的区域中具有紧接着在承载区域(5)之上逐渐汇合成曲率不中断的连续圆形，从而承载区域基本上为平面并且在其整个长度上连续。

Description

由热塑性材料制成的具有拱顶形基底的容器
技术领域
本发明涉及对由热塑性材料制成并设有称为“香槟瓶底”类型的底部(也就是说，成陡峭的圆顶状或者朝着容器的内侧凹入的底部)的容器的改进，所述底部包括：向下凸出的中央小突起(也就是说，在底部的凹面中的突起)；周边承载区域，容器借助于该区域可以稳定地立在基本上平的支撑体上；以及肋，从所述中央小突起辐射至所述周边承载区域。
背景技术
所谓的“香槟瓶底”具有可产生周边承载区域的优点，所述周边承载区域是平的，特别是其整体是连续的，从而它们可以为放置在基本上平的支撑体上的容器提供非常稳定的立足点。当容器填充有加压的液体(例如嘶嘶发泡的饮料)的时候，这种类型的底部是特别有利的，因为这些底部由于其高度地向内突起的形状，能够内在地承受从内部施加在它们之上的压力，并因此保持稳定。
但是，要获得这些优点，热塑性材料就必须具有足够的厚度，这种厚度明显大于容器体壁的厚度(例如参见文献FR2730471)，这样就使得由加热的预成型坯通过吹塑或者拉伸吹塑制造该容器变得更加棘手。
已经知道有多种香槟瓶底的实施方案变型，它们试图获得所述底部的更好的平整度和稳定性，并同时试图减小材料的厚度并因此减小这些容器的成本。
发明内容
本发明的一个目的是提出一种新型的香槟瓶底结构，它结合了这种类型底部固有的所有优点，同时允许节省用于制造容器所需的材料用量，并因此允许降低成本。
为此，本发明提供了一种由热塑性材料制成并设有“香槟瓶底”类型的底部的容器，所述底部包括：向下凸出的中央小突起；周边承载区域；以及设有从中央小突起延伸至承载区域的肋的中间拱形部，根据本发明布置的该容器的特征在于如下布置的结合：
-中央小突起呈向下凸起的圆形坪台的形状，
-所述肋从中央小突起延伸至承载区域，但是不包括该区域，
-所述肋是具有V形截面的二面角形状，它的中平面基本与容器的轴线平行，并彼此接续而不间断，以及
-所述肋具有弯曲的纵向轮廓，在它们的与中央小突起相邻的区域中，肋的谷底上升成高于所述中央小突起的基部，肋的谷底和顶峰在它们的与承载区域相邻的区域中具有逐渐合成连续的圆形部分的弯曲部分，而不会在紧接着承载区域之上发生曲率中断，从而承载区域基本是平的，并且在其整个范围是连续的。
利用这种布置，香槟瓶底的在中央小突起和周边承载区域之间延伸的拱形部具有改进的机械强度，这不仅是因为存在肋，而且是因为接续的且没有间断的设置的肋的实际形状，其彼此承载并且彼此加强。由于每个肋的特定的纵向轮廓，其中每个肋的从中央小突起开始的谷底朝着容器的内侧上升至高于所述小突起，因此具有非常明显的弯曲部分，其凸出侧面朝着容器的内侧，能够使其更好的承受压力，从而改进了机械强度。
所有的这些单独的特征彼此结合，以获得一个比目前已知的底部更坚固的香槟瓶底，并因此它能够在与已知的底部具有同样厚度的情况下承受更高的压力而不会变形，或者能够有利地制成为更小的厚度来承受给定的压力。
这里应当指出，可能的厚度减小不仅涉及设有所述二面角的肋的拱形部，而且并且是首先涉及周边承载区域，该区域的厚度通常是最大的。
中央小突起是向下凸出的圆形坪台的形状的事实
稳定了底部的中心，并使其具有恒定的几何形状，而不管注塑预成型坯的过程所得到的结晶材料的小片的精确位置。就底部而言，这导致对称的改进的整体形状，从而更容易获得周边承载区域的平整性。
本发明的设置特别适用于容器由PET制成的情况。
本发明的设置优选适用于该容器是一个整体形状大致为旋转圆柱体的瓶的情况，其中承载区域是环形的，并与中央小突起基本上同轴，二面角肋沿径向延伸。优选的是，该容器包括每个都具有相同角幅度的肋。在这种情况下，在承载区域直径为45mm数量级的瓶的典型示例实施方案中，瓶的底部具有十个左右的肋，每个具有相同的角幅度。更普遍的是，可以设想，肋的数量基本上随承载区域的直径变化，特别是对于标准直径的瓶来说可以在8-16之间。
本发明的设置可以明显节省材料。例如，在瓶的容量是1.5升，底部直径为70mm数量级(在承载区域中测量)并且如上所述地具有10个肋的情况下，可以通过减少拱形部的厚度而节省8％-15％数量级的材料，并通过减少承载区域的厚度，节省同样数量级的材料，同时获得与已知的底部相比至少相同或者甚至有所提高的机械强度特征。
通过阅读以下结合附图举例说明的本发明一些设置的详细描述，可以更好的理解本发明。
附图说明
图1是带有根据本发明形成的底部的热塑性瓶的下部的剖面图；
图2是从图1所示的瓶下部的下面所观察的透视图；
图3是本发明的底部的肋的沿图1线III-III截取的剖面图。
具体实施方式
图1和图2通过举例的方式显示了瓶1的下部，该瓶的整体形状大致是旋转圆柱体，其侧壁2在最下部连接至“香槟瓶底”(也就是成陡峭的圆顶状或者朝着容器的内侧凹入)类型的底部3上。
瓶1由热塑性材料尤其是PET制成，并通过吹塑或者拉伸吹塑预成型坯的工艺制造。
底部3包括：中央小突起4(包括或者由注塑预成型坯过程所得到的结晶材料小片构成)，它有利地形成为向下凸出的圆形坪台形状；在该示例中为环形的周边承载区域5，其基本在一个平面内延伸，从而该容器可以稳定的靠在平的支撑体上；以及中间区域或者拱形部6，其设有从中央小突起4辐射至承载区域5的肋7。
根据本发明，肋7从中央小突起4延伸至承载区域5，但是不包括该区域；换句话说，肋不会侵占到承载区域5，从而该承载区域连续延伸为环形。
另外，从图2尤其是图3中可以看出，肋7是二面角形，也就是它们由两个平的壁7a和7b形成，这两个壁彼此倾斜且具有相对于基本与瓶的轴线1a平行并且穿过所述轴线的中平面7c对称的V形截面。
如图2所示，所有的二面角肋7一个接一个而没有任何的间断，从而分布在一个圆上的所有的肋彼此依靠，并彼此加强，形成一个拱形部6，该拱形部具有更好的机械强度，并且能更好的承受施加在其上的压力。
特别是如图1所示，肋7具有弯曲的纵向轮廓。肋的谷底7d在它们的靠近中央小突起4的区域中升高至高于所述小突起4的基部，这意味着该区域中的谷底7d具有非常明显的弯曲部分，而在同一个区域中，肋7的顶峰7e从中央小突起以相对轴线1a基本成直角发散。这种设置起到了加强拱形部6的作用。
肋7的谷底7d和顶峰7e具有各自的纵向轮廓，从而朝着底部的周边，它们具有逐渐合并至连续圆形部分的弯曲部分，而不会在紧接着承载区域5之上(在8处)发生曲率中断，从而该区域是平的，并且在其整个范围是连续的。

Claims (4)

1.一种由热塑性材料制成并设有“香槟瓶底”类型的底部(3)的容器(1)，所述底部包括：向下凸出的中央小突起(4)；周边支承区域(5)，所述支承区域(5)是平的且沿着其整个长度连续；以及中间拱形部(6)，其设有从中央小突起向周围延伸至支承区域的肋(7)，在所述底部中：
-肋(7)从中央小突起(4)延伸至支承区域(5)，但是不包括该区域，
-肋(7)具有弯曲的纵向轮廓，肋的谷底(7d)在它们的与中央小突起(4)相邻的区域中上升成高于所述中央小突起的基部，肋的谷底(7d)和顶峰(7e)在它们的与支承区域相邻的区域中具有在支承区域(5)上方逐渐合成圆形部分的弯曲部分，
其特征在于：
-中央小突起(4)呈向下凸起的圆形坪台的形状；
-肋(7)呈具有V形截面的二面角形状，它的中平面(7c)与容器的轴线(1a)平行，并彼此接续而不间断，以及
-肋的谷底(7d)和顶峰(7e)在它们的与支承区域相邻的区域中具有逐渐合成连续的圆形部分的弯曲部分，而不会在支承区域(5)的正上方发生曲率中断，所述支承区域是平的，并且沿着其整个长度连续，
由此可以提高底部的刚性，同时可以减少其厚度，包括在支承区域中的厚度。
2.如权利要求1所述的容器，其特征在于，它由PET制成。
3.如权利要求1或2所述的容器，其特征在于，它是整体形状为旋转圆柱体的瓶(1)，所述支承区域(5)是环形的并且与中央小突起(4)同轴，所述二面角肋(7)沿径向延伸。
4.如权利要求3所述的容器，其特征在于，它包括多个肋(7)，每个肋具有相同角幅度。
CNB2004800203994A 2003-06-19 2004-06-11 由热塑性材料制成的具有拱顶形基底的容器 Expired - Fee Related CN100482540C (zh)

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CA2529757C (fr) 2009-08-11
JP4174063B2 (ja) 2008-10-29
US7416088B2 (en) 2008-08-26
CN1894136A (zh) 2007-01-10
KR20060028697A (ko) 2006-03-31
EP1638849B1 (fr) 2007-08-15
US20070000858A1 (en) 2007-01-04
JP2006527692A (ja) 2006-12-07
CA2529757A1 (fr) 2005-01-13
EP1638849A1 (fr) 2006-03-29
FR2856380A1 (fr) 2004-12-24
FR2856380B1 (fr) 2005-10-21
WO2005002982A1 (fr) 2005-01-13
ES2291929T3 (es) 2008-03-01
MXPA05013794A (es) 2006-03-13
PT1638849E (pt) 2007-11-23
ATE370071T1 (de) 2007-09-15
DE602004008280T2 (de) 2008-05-08
DE602004008280D1 (de) 2007-09-27

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