CN1311745A - 带有具有间断加强筋的盖子的容器 - Google Patents

带有具有间断加强筋的盖子的容器 Download PDF

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CN1311745A
CN1311745A CN99809124A CN99809124A CN1311745A CN 1311745 A CN1311745 A CN 1311745A CN 99809124 A CN99809124 A CN 99809124A CN 99809124 A CN99809124 A CN 99809124A CN 1311745 A CN1311745 A CN 1311745A
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杰弗里·J·泽特尔
唐纳德·E·霍奇
埃里克·B·沙佩尔
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S C JOHNSON STORAGE CORP
SC Johnson Home Storage Inc
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Abstract

一种容器(10),包括一个碗(12)和一可选择取下的盖子(14)的组合体。碗为整体式结构,其包括一向上凸起的壁(18),该壁具有一沿周边延伸的大致U形密封凸缘(32)。可选择取下的盖子也为整体式结构,其包括一具有周边密封凸缘(32)的主体(30)及至少一个横向延伸的突耳件(40),以有助于从碗上取下盖子,其中,盖子主体上的密封凸缘与碗的密封凸缘相配合。碗和盖最好由适于冷冻和微波再加热的弹性聚合物制成。

Description

带有具有间断加强筋的盖子的容器
技术领域
本发明通常涉及一种用于存放和输送例如食物物品的容器，尤其涉及一种包括一个碗和可选择取下的盖子的容器，该盖子包括一间断的加强筋以有助于可选择地使盖子与碗分离。
技术背景的说明
容器，特别是那些通常用于在微波炉中加热食品的容器应成本较低且易于使用。另外，这种容器应该是多用途的，即，能够承受例如在将该容器直接从冰箱或冷冻装置中输送至微波炉时出现的不同环境的急剧变化。
对于这些可微波加热的容器来说，在该技术中主要焦点在于在盖子和碗之间提供良好的密封。然而，我们已认识到许多已知的可密封微波容器在密封装置方面产生了不必要的复杂性。例如，美国专利US.5,377,860要求沿密封边缘的相对侧设置一种特殊形状的双密封结构。根据该专利，基底和盖子都需要一个向内设置的逐渐变细的截头圆锥形密封区域以及带有配合切口的一个向下并向外延伸的边缘。虽然这样可以完成一个高度完整的密封，但是我们认为，其需要不必要的较大力才能分离盖子和碗。而这样会使这种容器更易于溅出，从而造成令人非常不满意的结果。
该技术在很大程度上未考虑突耳件的结构是如何结合密封装置来影响盖子与碗分离的分离力的大小。迄今为止，弹性可微波加热容器通常包括一个较薄的突耳结构(当存在突耳件时)，其在与盖子连接处弯曲，从而需要不必要的较大的分离力才能从碗上取下盖子。
发明概述
因此，本发明的主要目的在于提供了这样一种容器，其包括一个碗和一个可选择取下的盖子，该盖子包括一密封装置，该密封装置允许能较容易地安装和取下盖子。
本发明的另一个目的在于提供一种由弹性材料制成的低成本高产量的容器。
本发明的另一个目的在于提供一种容器盖，其包括一结构上加强的突耳件，该突耳件能使盖子被容易地取下。
本发明的另一个目的在于提供一种扩张式突耳件，其能固定至盖子的密封凸缘的较大部分，从而使分离力分布在邻近密封区域的大范围内。
本发明的另一个目的在于提供一种加强型突耳件，其能够抵抗在固定至盖子之处的弯曲且允许分离力从突耳件直接传送至密封区域。
本发明的另一个目的在于提供一种弹性容器，该容器可以用在各种环境中，例如冷冻装置和微波炉。
上述目的可以通过提供这样一种容器而得以实现，所述容器包括一个碗和一个由弹性聚合材料制成的可选择性取下的盖子。所述盖子部分通常包括一具有周边密封凸缘的主体，所述盖子部分包括从所述密封凸缘向外延伸的刚性突耳件。所述突耳件设有多个分离的直立肋条，这些肋条能使突耳件的刚性达到最大，以便更有效地将分离力从突耳件输送至邻近突耳件的密封区域。每一直立肋条均朝密封凸缘向上倾斜，而其本身有助于使突耳件抵抗在与密封凸缘的固定处的弯曲。
通过多种已知热塑性树脂中的任意一种能经济地热成形制造出本发明的容器，在这些已知热塑性树脂包括但不局限于聚酰氨，聚丙烯酸，多芳基化合物，聚碳酸酯，聚酯，聚醚酰亚胺，聚醚酮，聚烯烃，聚苯，聚氯乙烯，以及各种苯乙烯和液晶聚合物。
从下面附图和发明的详细描述中，能够更清楚地理解本发明的各个特征、目的和优点。
附图的简要说明
图1为容器组件的分解透视图，根据本发明的教导，该容器组件包括一个碗和可选择取下的盖子；
图2为根据本发明教导的盖子突耳件的第一实施例的局部剖视图；
图3为沿图1中线3-3所示的剖面图，其描述了这样的盖子，根据本发明的一个实施例，所述盖子包括一具有卡锁装置的突耳件，所述卡锁装置通过从碗伸出的一凸起啮合；
图4为沿图1中线4-4所示的剖面图；
图5为一种容器的剖面图，根据本发明的第二实施例，所述容器包括一个盖子，该盖子具有一包括一个凸起的突耳件，所述凸起与碗凸缘上的凹槽啮合；
图6为一种盖子的透视图，根据本发明的第三实施例，所述盖子包括一个突耳件，该突耳件以搭接方式与一从碗凸缘伸出的凸起啮合；
图7为沿图6中线7-7所示的剖面图。
实现本发明的方式
通常参照图1，该图给出了一个容器10，根据本发明，其包括一个碗12和可选择取下的盖子14。首先应指出的是，虽然该容器通常为矩形结构，但是该容器可采用非限定性实施例给出的其它各种结构，例如圆形、椭圆形或方形。
碗12通常包括一个底部(未示出)和一从底部垂直延伸的连续侧壁18。一个L形边缘20整体连接在垂直延伸的侧壁上，该边缘包括一个从侧壁向外伸出的第一侧边24和一个从第一侧边向下延伸的第二侧边26。从图3中可更清楚地看出，侧壁18的上部22最好包括一个向内延伸的环形节点(nub)28，如将在下面非常详细说明的那样的一样，该节点有助于确定盖子和碗之间的密封啮合。
盖子14通常包括一个具有一个圆周设置的凸缘32的中央盘形主体30，该边缘在安装时盖住了设置在碗12上凸缘20的一部分。如在图3中可以最清楚地看出，凸缘32的横截面通常为倒U形，其包括一个从主体延伸的第一侧边34，一个第二侧边36以及一个设在它们之间的腹板38。因此，在把盖子14连接在碗12时，第一侧边34在环形节点28上方推进直到密封点与侧壁的内部表面啮合以在盖子和碗之间形成过盈配合。一刚性突耳件40从凸缘32的第二侧边向外延伸，其结构应能防止在固定至密封凸缘的地方产生弯曲。
参照附图1和2，形状为大致三角形的突耳件40如图所示，包括一个底面42和一个圆周边缘44。底面42设有多个隔开的直立肋条46，这些肋条包括第一肋条50，所述第一肋条沿由参考标号48所示的穿过突耳件的纵向中心线而设置。第二和第三肋条52和54分别设置在该第一肋条的相对侧上，这两个肋条远离纵向中心线48倾斜延伸。每条肋条均限定有非常陡的边缘，这些边缘进一步提高了突耳件的结构刚度。
这些肋条位于特定的位置处以使突耳件的刚度达到最大，从而增强了分离力从突耳件至密封区域的转移，即当需要时能够增强盖子从碗上脱开的能力。例如，第一肋条50包括一个相对于底面、以与纵向中心线的角度成大约3°至7°延伸的第一横向边缘56，及一个与纵向中心线的角度成大约-3°至-7°延伸的第二横向边缘58。因此，该第一肋条通常为梯形。
第二肋条52包括一个与纵向中心线的角度成大约8°至20°延伸的第一横向边缘60及一个与纵向中心线的角度成大约20°至40°延伸的第二横向边缘62。与上述第二肋条52成镜像状态设置的第三肋条54沿第一横向边缘64以大约-8°至-12°的角度延伸并且沿第二横向边缘66与纵向中心线成大约-20°至-40°的角度延伸。因此，如根据这些理想的角度取向所描述和显示的那样，所述第二和第三肋条远离中心线倾斜延伸且其形状大致为三角形。
应该指出的是，为清楚起见，此处使用了相对于纵向中心线的负角度符号(-°)以强调第二和第三肋条最好彼此成镜像状态设置。因而，本领域普通技术人员应该易于认识到，例如在采用标准半径表示时，-3°等于357°而-7°等于353°。
根据一最佳实施例，每一直立肋条均包括在边缘32附近终止的第一端部70和在突耳件周边44附近终止的第二端部72。直立肋条通常以大约12°至18°之间的平均倾斜角从第二端部朝第一端部向上倾斜，以便肋条在腹板38和第二侧边36之间的连接点76附近与边缘32相连。突耳件的周边最好包括一个向下凸缘7，该凸缘在底面42下方延伸从而提供了一个用以防止使用者的拇指或指头滑离突耳件的阻碍物。
如本领域有经验的技术人员所理解的那样，直立肋条的一定角度倾斜取向确保了突耳件具有理想的刚性以便抵抗弯曲，特别是在与密封凸缘固定处的弯曲。其本身允许分离力从突耳件高速传递至密封凸缘以便更容易地克服合乎要求的过盈配合。
参见附图3和图4，碗凸缘20的第二侧边26可任意设置一向外延伸的凸起80，该凸起80位于设置在第一肋条50下侧的一卡锁装置82上。另外，如图6和7所示，小突耳件80A的形状与第一肋条50下侧的卡锁装置相一致，以便突耳件20以搭接方式啮合所述凸起。
另外，如图5所示，突耳件40可以有选择地设置一个或多个沿侧壁方向伸出的凸起84，所述凸起与设置在碗凸缘20的第二侧边26上的一凹槽86啮合。例如，凸起84从沿凹槽区域形成的凸缘部分延伸，所述凹槽区域设置在中心线48的相对侧，在所述中心线48处设有两个凸起。在图3-7所示的每一实施例中，设有这样的装置，其用以使盖子相对于碗对准且能确定充分的连接以获得相互配合密封。因此，如果凸起或小突耳件没有位于对准的凹槽或卡锁装置内，则不能正确地固定盖子，从而提供了未形成相互密封的指示。
如上所述，虽然盖子和碗可以由多种不同聚合材料中的一种热成形制成，但是含有可选择的增滑剂的聚丙烯均聚物被认为是较理想的。通过采用一种聚丙烯均聚物，可以将盖子和碗热成形以使其平均厚度大约在10至50密耳并且还能提供必要的结构完整性。
显然，虽然所公开的本发明最佳实施例能良好地满足所提到的目的，但应理解在不脱离本发明思想的情况下，能够容易地对本发明进行改进，变化和改变。
工业实用性
可以以低成本制造这些容器，以提供在使用之后可再次使用或处理的经济型存储容器。

Claims (23)

1．一种用于容器的盖子，所述盖子包括：
一个主体和一个从所述主体伸出的周边密封凸缘；
一个从所述密封凸缘整体延伸的刚性突耳件，其包括一底面及一周边，所述底面包括多个分离的直立肋条，所述肋条包括一沿纵向中心线设置的第一肋条及至少另一个离开所述纵向中心线倾斜延伸的肋条。
2．根据权利要求1所述的盖子，其特征在于：所述直立肋条包括一个在所述密封凸缘附近终止的第一端部以及一个在所述突耳件的周边附近终止的第二端部。
3．根据权利要求2所述的盖子，其特征在于：所述直立肋条从所述第二端部朝所述第一端部向上倾斜。
4．根据权利要求2所述的盖子，其特征在于：所述直立肋条以大约12°至18°之间的平均值倾斜。
5．根据权利要求1所述的盖子，其特征在于：所述第一肋条包括一个与纵向中心线的角度成大约3°至7°延伸的第一横向边缘，及一与纵向中心线的角度成大约-3°至-7°延伸的第二横向边缘。
6．根据权利要求1所述的盖子，其特征在于：所述至少另一肋条包括设置在所述第一肋条相对侧的第二和第三大致三角形的肋条。
7．根据权利要求6所述的盖子，其特征在于：所述第二肋条包括一与所述纵向中心线角度成大约8°至12°延伸的第一边缘以及一与所述纵向中心线角度成大约20°至40°延伸的第二边缘。
8．根据权利要求5所述的盖子，其特征在于：所述第三肋条包括一与所述纵向中心线角度成大约-8°至-12°延伸的第一边缘以及一与所述纵向中心线角度成大约-20°至-40°延伸的第二边缘。
9．根据权利要求1所述的盖子，其特征在于：所述突耳件的主体大致为三角形。
10．根据权利要求1所述的盖子，其特征在于：所述突耳件的所述周边包括在所述底面下方延伸的凸缘。
11．根据权利要求1所述的盖子，其特征在于：所述周边密封凸缘具有大致倒U形的横截面。
12．根据权利要求1所述的盖子，其特征在于：所述突耳件包括一与所述碗上的一个凹槽啮合的凸起。
13．根据权利要求1所述的盖子，其特征在于：所述突耳件包括一卡锁装置，该卡锁装置与一从所述碗延伸的凸起啮合。
14．根据权利要求13所述的盖子，其特征在于：所述突耳件搭接在一从所述碗伸出的小突耳凸起上。
15．一种可微波加热的容器，其包括：
一个碗，其包括一底部，一从底部向上延伸的连续侧壁及一从所述侧壁伸出的L形凸缘；
一可选择取下的盖子，其包括一具有周边密封凸缘的主体及一从所述密封凸缘伸出的刚性突耳件；
所述突耳件包括一个底面，其具有多个直立肋条，这些肋条包括一第一肋条，一第二肋条及一第三肋条，所述第一肋条沿一纵向中心线设置，其包括一与纵向中心线的角度成大约3°至7°延伸的第一横向边缘及一与纵向中心线的角度成大约-3°至-7°延伸的第二横向边缘，所述第二肋条包括一与所述纵向中心线角度成大约8°至12°延伸的第一边缘及一与所述纵向中心线角度成大约20°至40°延伸的第二边缘，所述第三肋条包括一与所述纵向中心线角度成大约-8°至-12°延伸的第一边缘及一与所述纵向中心线角度成大约-20°至-40°延伸的第二边缘。
16．根据权利要求15所述的盖子，其特征在于：所述直立肋条包括一个在所述密封凸缘附近终止的第一端部以及一个在所述突耳件的周边附近终止的第二端部。
17．根据权利要求16所述的盖子，其特征在于：所述直立肋条从所述第二端部朝所述第一端部向上倾斜。
18．根据权利要求17所述的盖子，其特征在于：所述直立肋条以大约12°至18°之间的平均值倾斜。
19．根据权利要求15所述的盖子，其特征在于：所述突耳件的主体大致为三角形。
20．根据权利要求15所述的盖子，其特征在于：所述突耳件包括一具有向下凸缘的周边。
21．根据权利要求15所述的盖子，其特征在于：所述突耳件包括一与所述碗上的一个凹槽啮合的凸起。
22．根据权利要求15所述的盖子，其特征在于：所述突耳件包括一卡锁装置，该卡锁装置与一从所述碗延伸的凸起啮合。
23．根据权利要求15所述的盖子，其特征在于：所述突耳件搭接在一从所述碗伸出的小突耳凸起上。
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KR20010071611A (ko) 2001-07-28
HK1038907B (zh) 2003-10-24
ZA200100097B (en) 2001-07-26
TW592205U (en) 2004-06-11
AR018949A1 (es) 2001-12-12
MY121410A (en) 2006-01-28
EP1091886B1 (en) 2004-03-17
NZ509482A (en) 2003-08-29
CN1106992C (zh) 2003-04-30
DE69915620D1 (de) 2004-04-22
HK1038907A1 (en) 2002-04-04
BR9911507A (pt) 2001-03-20
ATE261862T1 (de) 2004-04-15
EP1091886A1 (en) 2001-04-18
KR100396418B1 (ko) 2003-09-03
ES2217764T3 (es) 2004-11-01
WO1999067146A1 (en) 1999-12-29
US6032827A (en) 2000-03-07
AU764693B2 (en) 2003-08-28
CA2335982C (en) 2005-08-23
JP2002518263A (ja) 2002-06-25
AU4429699A (en) 2000-01-10
CA2335982A1 (en) 1999-12-29

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