CN1256675A - 改进的塑料瓶盖 - Google Patents

改进的塑料瓶盖 Download PDF

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CN1256675A
CN1256675A CN98805231A CN98805231A CN1256675A CN 1256675 A CN1256675 A CN 1256675A CN 98805231 A CN98805231 A CN 98805231A CN 98805231 A CN98805231 A CN 98805231A CN 1256675 A CN1256675 A CN 1256675A
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CN1091056C (zh
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埃里克·里查德·巴尔奇
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Beverage Holdings Limited Liability Company
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D41/00Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/46Snap-on caps or cap-like covers
    • B65D41/48Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics

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Abstract

本发明涉及了压紧瓶盖的撕开手把的一种改进设计。特别是,本发明设计了瓶盖撕开手把(28)的设计,在把瓶盖装在瓶子上时,它防止了在大作用力下瓶盖撕开裙部(24)的损坏;本发明还提供了一个易于被消费者去除的撕开裙部。一个减弱区(46)设在撕开手把(28)和撕开裙部壁相交处的底边(38)上。瓶盖的减弱区(46)被设计成这样:由于与瓶颈接触,使撕开裙部处于拉伸状态,减弱区(46)吸引了拉力,使得瓶盖撕开裙部的相邻弱点(42)免受应力,防止了该区域的损坏,这个损坏将会引起消费者的不快和造成废品。

Description

改进的塑料瓶盖
                    发明领域
本发明涉及了一种塑料瓶盖。本发明还提及了带有改进撕开手把的这种瓶盖。
                    发明背景
在先前技术中已经熟知了带有撕开手把的压紧瓶盖。一般说,这种瓶盖的先前实施例包括一个撕开手把,由消费者抓住并拉动撕开手把,使得瓶盖壁的易裂开区被断开,可去除瓶盖壁的环形区,从而容许消费者从瓶子上取下可重复使用的瓶盖上区。一条环形减弱线和一条垂直减弱线确定了瓶盖壁的可去除区,易于从留下的瓶盖重复使用的上区上去除该区。在美国专利号4,066,182、4,687,114和4,801,032中可看到先前的这种类型瓶盖。瓶盖撕开带的下区通常与瓶颈的向下倾斜区接触,以及在瓶子压盖过程中,通常在相当高的压力下把撕开带的下区和相应的瓶颈区压迫在一起;这在压盖时可能造成垂直减弱线的开裂。通常也把这些瓶盖制造成:使得瓶盖下区和瓶颈之间的配合较松,足以防止垂直减弱线在压盖时开裂。但是,这种松的配合也可能在瓶盖下区和瓶颈之间产生间隙,它可能促使瓶盖被压紧。
在先前技术中已详细说明了采用其它办法来消除这个间隙和改进防压紧能力的瓶盖,例如在美国专利号4,190,175、5,027,969和5,307,948中可以看到。这些设计在瓶子上设置了一个阻挡物,它防止瓶子进入瓶盖的下区。这消除了在瓶盖和瓶子之间紧配合的要求。但是,在典型的吹模制造的瓶子上很难精确和低廉地复制这些特征,它们在标准的喷射模制或压缩模制的瓶盖上是可能的。
本发明提供了一种新颖的撕开手把,当压盖期间有很大的力作用在瓶盖顶面时,它防止了在瓶盖壁的可去除区中垂直减弱线的损坏。撕开手把具有一个减弱区,它被设计成在压力下可以变形,并且保护垂直减弱线不受到可引起垂直减弱线断开的高的力。保护垂直减弱线不受到过度的压盖力,可容许把瓶盖设计成与瓶子配合得更紧密。在瓶盖和瓶子之间这个改进的配合,改进了在把瓶盖装在瓶子上时瓶盖的防压紧能力。
因此,希望具有一种改进的瓶盖,它具有改进的压紧撕开带,撕开带在压盖操作时不会断开,它提供了瓶子和瓶盖之间更好和更紧密的配合,以及比先前技术的撕开带更容易被消费者从瓶子上撕去。
                    发明概述
公开了瓶子的一种塑料瓶盖,它具有压盖区和环形撕开裙部,在瓶盖中形成的环形减弱线把裙部与压盖区连接。撕开裙部具有下周向边,以及在撕开裙部中从环形减弱线到下周向边形成的起始减弱线。一个撕开手把在起始减弱线附近与撕开裙部连接,使得拉动撕开手把可以使起始减弱线断开。在撕开手把与撕开裙部的连接点附近和在下周向边附近模制了一个卸载凹口。使得在把瓶盖装在瓶子上时,卸载凹口可以减少施加在下周向边上的拉力值,从而减少施加在垂直减弱线上的拉力值。
瓶盖可用于瓶子,瓶子的形式为:有一个瓶颈区、一个顶部开口、一个带有周边和内边的环形顶面,内边确定了顶部开口,一个从环形顶面的周边向下和向外延伸的顶部外边缘,顶部外边缘确定了第一平面、一个在顶部外边缘的下边上形成的唇部,以及一个从瓶颈区向外延伸的底部外边缘。瓶盖可具有一个盖住开口的压盖区。压盖区还可具有一个内表面和一个外表面,一个第一环形区,第一环形区确定了第二平面,第一平面基本上平行于第二平面,第一环形区还包括一个与唇部相接触的唇部密封区。
一个撕开裙部从压盖区向下延伸。撕开裙部具有一个底脚,它与底部外边缘形成加压接触,从而把压缩力施加在撕开裙部上,迫使唇部密封区与唇部接触。依靠在瓶盖中形成的环形减弱线,把撕开裙部与压盖区连接;撕开裙部还具有一个下周向边。在撕开裙部中从环形减弱线到下周向边形成了一条垂直减弱线。
在垂直减弱线附近,撕开手把与撕开裙部连接,从而拉动撕开手把可使垂直减弱线断开,从下周向边开始一直延续到环形减弱线。在撕开手把与撕开裙部的连接点附近和在下周向边附近,模制了一个卸载凹口。使得当把瓶盖装在瓶子上时,卸载凹口可减少施加在下周向边上的拉力值,从而减少施加在垂直减弱线上的拉力值。
                    附图简述
虽然本技术说明以权利要求来结束,权利要求特别指出和明确提出了本发明的专利范围,但从以下结合附图的描述,相信能更好地了解本发明,其中:
图1是一个压紧瓶盖实施例的透视图,它装在可用于本发明的瓶子上;
图2是图1瓶盖的正视图;
图3是通过图2中3-3线的剖视图;
图4是图1瓶盖下侧的透视图;
图5是撕开手把与撕开裙部连接点的分解图,它出现在图4中。
                  发明详述
现详细地参照附图,其中,所有视图中相同的编号表示同样的部分,在图1-3中表示了本发明瓶盖10的一个实施例,它放置在瓶子的顶上。这仅是可用于本发明的许多瓶盖类型中的一种。尤其是参照图3,瓶子通常具有一个瓶颈11和一个开口。开口被环形顶面12包围,而顶面具有内边14和周边16。顶部外边缘18从环形顶面12的周边16向下和向外倾斜。顶部外边缘18的下边从瓶颈的垂直区向外伸出,并形成唇部20。唇部20作为瓶盖密封区的“座”。底部外边缘32从瓶颈垂直区的下端向下和向外延伸,作为瓶盖一个区的“座”。
瓶盖10的压盖区22是瓶盖的保留部分,并且从瓶子上除去撕开裙部24后可重复使用。唇部密封区30是压盖区22的一部分;它与唇部20相配和贴合。撕开裙部24从压盖区22向下延伸。它们在环形减弱线26上连接,减弱线26设计成当消费者拉动撕开手把28时可被断开。在撕开裙部24的下端有一个底脚34,它的形状作成可与底部外边缘32贴合。相对于唇部20和外边缘32之间的瓶子部位来确定唇部密封区30和底脚34之间瓶盖10部位的尺寸,使得当把瓶盖10紧固在瓶子上时,在底脚34和唇部密封区30之间施加了一个压缩力。这在唇部20和唇部密封区30之间产生了增强的密封。
参照图1、2、4和5,下边38可从底脚34向下和向外延伸。在压盖操作时迫使下边38靠在瓶子表面40上(参见图3)。这个在压盖时向下和向外的运动使得一般在撕开裙部24内,但特别是在下边38附近施加了显著的拉力值。在先前技术的瓶盖中,这个拉力将积累在如图4和5所示的减弱线42上,尤其是在减弱线42的靠近下边38的点上。在压盖操作时,这会造成瓶子区域中减弱线42的断开,从而造成废品。这个问题是由于先前技术瓶盖中显著的材料厚度所造成,它被模制在撕开手把28与撕开裙部24的连接点上,形成一个增强区。在压盖操作时,这个增强区把拉力集中到最弱的环节中,即集中到垂直减弱线42中,并使它断开。
在撕开手把28和撕开裙部24之间靠近下边38的接触点上,提供了一个模制在瓶盖中的卸载凹口46(参见图4和5),这就解决了这个问题。在撕开手把28连接撕开裙部24的靠近下边28的地方,凹口46去除了撕开手把的一部分厚度。凹口46减少了在压盖操作时倾向于吸收拉力的这个区域的材料,从而使减弱线42免受这些拉力,防止了它的断开。申请者已用试验证明,采用这种改进,在压盖操作时施加过度的力,绝对不会损坏垂直减弱线42;事实上,在新颖瓶盖产生任何损坏之前瓶子已趋于变形。此外,由于减弱线42避免了上述的拉应力并且不易被断开,容许把减弱线42做得更薄,因而在消费瓶子中的物品时,凹口46可使消费者更容易从瓶盖10上撕去撕开裙部24。
尽管这里已经说明和描述了本发明的特殊实施例,对于熟悉该技术的人员来说,显然可以作出各种变化和修改而不背离本发明的精神和范围,在所附权利要求中打算包括在本发明范围内的所有修改。

Claims (3)

1.瓶子的一种塑料瓶盖,瓶盖的特征在于:
(a)一个压盖区;
(b)一个环形撕开裙部,它依靠在瓶盖中形成的环形减弱线与压盖区连接,撕开裙部具有一个下周边;
(c)一个起始减弱线,它从环形减弱线到下周边形成在撕开裙部中;
(d)一个撕开手把,它在起始减弱线附近与撕开裙部连接,从而拉动撕开手把可以使起始减弱线断开;
(e)一个卸载凹口,它在撕开手把与撕开裙部的连接点附近和下周边附近,使得在把瓶盖装在瓶子上时,卸载凹口可以减少施加在下周向边上的拉力值,从而减少施加在垂直减弱线上的拉力值。
2.瓶子的一种瓶盖,瓶子的形式为:有一个瓶颈区、一个顶部开口、一个带有周边和内边的环形顶面,内边确定了顶部开口,一个从环形顶面周边延伸的顶部外边缘,一个在顶部外边缘的下边上形成的唇部,以及一个从瓶颈区延伸的底部外边缘,瓶盖的特征在于:
(a)一个盖住开口的压盖区,压盖区具有一个内表面和一个外表面,压盖区还包括一个与唇部相接触的唇部密封区;
(b)一个从压盖区延伸的撕开裙部,撕开裙部具有一个底脚,底脚与底部外边缘形成加压接触,从而把压缩力施加在撕开裙部上,迫使唇部密封区与唇部形成密封接触,依靠在瓶盖中形成的环形减弱线,把撕开裙部与压盖区连接,撕开裙部还具有一个下周向边;
(c)一条垂直减弱线,它从环形减弱线到下周向边形成在撕开裙部中;
(d)一个撕开手把,它在垂直减弱线附近与撕开裙部连接,从而拉动撕开手把可使垂直减弱线断开;以及
(e)一个卸载凹口,它在撕开手把与撕开裙部的连接点附近和在下周向边附近,使得当把瓶盖装在瓶子上时,卸载凹口可减少施加在下周向边上的拉力值,从而减少施加在垂直减弱线上的拉力值。
3.瓶子的一种瓶盖,瓶子的形式为:有一个瓶颈区、一个顶部开口,一个带有周边和内边的环形顶面,内边确定了顶部开口,一个从环形顶面的周边向下和向外延伸的顶部外边缘,顶部外边缘确定了第一平面,一个在顶部外边缘的下边上形成的唇部,以及一个从瓶颈区延伸的底部外边缘,瓶盖的特征在于:
(a)一个盖住开口的压盖区,压盖区具有一个内表面和一个外表面,压盖区还包括一个第一环形区,第一环形区确定了第二平面,第一平面基本上平行于第二平面,第一环形区还包括一个与唇部相接触的唇部密封区;
(b)一个从压盖区向下延伸的撕开裙部,撕开裙部具有一个底脚,底脚与底部外边缘形成加压接触,从而把压缩力施加在撕开裙部上,迫使唇部密封区与唇部形成密封接触,依靠在瓶盖中形成的环形减弱线,把撕开裙部与压盖区连接,撕开裙部具有一个下周向边;
(c)一条垂直减弱线,它从环形减弱线到下周向边形成在撕开裙部中;
(d)一个撕开手把,它在垂直减弱线附近与撕开裙部连接,从而拉动撕开手把可使垂直减弱线断开,从下周向边开始一直延续到环形减弱线;以及
(e)一个卸载凹口,它在撕开手把与撕开裙部的连接点附近和在下周向边附近,使得当把瓶盖装在瓶子上时,卸载凹口可减少施加在下周向边上的拉力值,从而减少施加在垂直减弱线上的拉力值。
CN98805231A 1997-04-17 1998-04-14 改进的塑料瓶盖 Expired - Fee Related CN1091056C (zh)

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JP2001523197A (ja) 2001-11-20
AU6515098A (en) 1998-11-11
US5860545A (en) 1999-01-19
ES2186142T3 (es) 2003-05-01
DE69808448D1 (de) 2002-11-07
EP0975525B1 (en) 2002-10-02
EP0975525A1 (en) 2000-02-02
ATE225290T1 (de) 2002-10-15
CA2286818A1 (en) 1998-10-22
DE69808448T2 (de) 2003-08-14
CN1091056C (zh) 2002-09-18
WO1998046492A1 (en) 1998-10-22
CA2286818C (en) 2003-06-10
BR9808936A (pt) 2000-08-01

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