CN102727109A - 用于食物混合器的一次性扭矩限制搅拌器 - Google Patents

用于食物混合器的一次性扭矩限制搅拌器 Download PDF

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CN102727109A
CN102727109A CN2012100913468A CN201210091346A CN102727109A CN 102727109 A CN102727109 A CN 102727109A CN 2012100913468 A CN2012100913468 A CN 2012100913468A CN 201210091346 A CN201210091346 A CN 201210091346A CN 102727109 A CN102727109 A CN 102727109A
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E·J·科兹洛夫斯基
R·索伊佛特
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    • AHUMAN NECESSITIES
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    • AHUMAN NECESSITIES
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    • A23G9/08Batch production
    • A23G9/12Batch production using means for stirring the contents in a non-moving container
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23GCOCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G9/00Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
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    • A47J43/0705Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the upper side
    • A47J43/0711Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the upper side mixing, whipping or cutting tools
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    • B01F27/07Stirrers characterised by their mounting on the shaft
    • B01F27/071Fixing of the stirrer to the shaft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
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    • BPERFORMING OPERATIONS; TRANSPORTING
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Abstract

一种搅拌器包括杆部(11),在该杆部(11)的一端具有适于与食品搅拌机的可旋转的轴(25)连接的轴连接部(12)。所述杆部(11)的另一端具有勺头形状的混合片(13)。所述杆部(11)的形状类似具有由中心壁(21)间隔开的侧壁(20)的I型杆。所述侧壁(20)具有相对的缺口(22),并在所述缺口之间形成有梁腹部(23),所述中心壁(21)具有与所述梁腹部(23)对齐的孔(24)。所述梁腹部(23)与所述孔(24)共同限定出薄弱部位,当所述杆部(11)受到预定扭矩时将在所述薄弱部位断裂,所述预定扭矩基于所混合的食物产品(27)的硬度来确定。

Description

用于食物混合器的一次性扭矩限制搅拌器
技术领域
本发明涉及一种一次性搅拌器,用于混合食物产品,比如冰激凌之类。该搅拌器形成为勺子形状,从而使用者在食物混合完之后能够利用该搅拌器食用食物。更具体地,本发明涉及一种搅拌器及其制造方法,当食物产品过硬时,该搅拌器会在使用者可识别的预定位置整齐地断裂。
背景技术
便利店、快餐店等场所普遍使用食品混合机,尤其是将调味品或者其他食物混合到容器中盛装的冰激凌中,以供顾客用勺子食用。通常这种混合通过安装在旋转轴底部的搅拌器来实现。提供给顾客的冰激凌和待混合的其他食物盛放于容器内,搅拌器置于冰激凌中以混合食品。使用完后,为避免弄脏下次需混合的食品,需要清洗搅拌器。
为了避免清洗搅拌器的步骤,研制出了一次性塑料搅拌器,使用之前将该一次性塑料搅拌器安装在旋转轴上,使用之后将其从旋转轴上卸下。这样,不用在每次使用时清洗轴。
部分这种一次性搅拌器形成为勺子形状。在这些器具中,勺头用于混合食品,而勺杆是中空的,使用者将勺杆安装在食品混合机的旋转轴的至少一部分上。所述勺杆上设置有夹子,该夹子夹在位于旋转轴上的肋部上,以将勺子连接到轴上。然后使用者将食品混合,并将勺子从轴上卸下。这种系统的优点在于,不仅因为不用每次使用后清洗搅拌器因而节省了时间,而且因为顾客能够使用勺子来食用食品由此节省了为顾客提供普通勺子的成本。
但是,如果使用这些塑料搅拌器混合冰激凌或者其他过硬的食品,则因为温度太低,当勺头置于冰激凌中且搅拌器旋转时,搅拌器可能由于扭曲而断裂。这种断裂如果不加控制则会沿着勺杆发生在任意位置,从而沿着勺杆产生尖锐的或者参差不齐的边缘。这种随意的断裂也会发生在勺头,并导致勺头的碎片进入已混合的产品中,或者导致勺头形成尖锐的边缘。无论哪种情况,对于在使用勺子食用已混合的产品之前疏于检查勺子的人来说,勺子的这种断裂都构成了潜在的安全风险。
因此,需要有一种一次性塑料勺状搅拌器,如果发生断裂,其也不会随意断裂,而是会在顾客容易识别的位置上整齐地断裂。
发明内容
本发明一方面的目的是提供一种用于食物混合机的可旋转的搅拌器,当受到抵抗旋转的预定大小的扭力时,该搅拌器会在预定位置断裂。
本发明的另一方面的目的是提供一种搅拌器,如上所述,当使用该搅拌器混合冰激凌时,该搅拌器将在冰激凌达到预定温度时发生断裂。
本发明的再一方面的目的是提供一种制造具有上述特征的搅拌器的方法。
本发明的这些和其它目的以及优于现有技术的优点,将通过下面的描述而变得明显,并能够通过下文所描述和主张的改进而实现。
一般来说,适于连接于可旋转的轴以混合食物的搅拌器包括:杆部,位于所述杆部的一端适于连接于所述轴的轴连接部,以及位于所述杆部的另一端用于混合食物的片状部。所述杆部具有薄弱部位,当所述搅拌器受到预定量的扭矩时,所述杆部将在所述薄弱部位断裂。
一种制造搅拌器的方法,该搅拌器用于混合食物并具有杆部,所述杆部当受到预定扭矩时将断裂,所述方法包括沿所述杆部在所述杆部上的所需的可识别位置形成薄弱部位。
另一种制造搅拌器的方法,该搅拌器用于混合食物并具有杆部,所述杆部在受到预定扭矩时将断裂,所述方法包括在所述杆部上形成薄弱部位,并依据所述预定扭矩的大小确定所述薄弱部位的尺寸。
在所附的附图中以实例的方式显示了根据本发明构思的优选的示例性的可旋转的搅拌器,而并没有试图显示本发明可能包括的所有的形式和改进,本发明由所附的权利要求书而不是由说明书中的具体细节来衡量。
附图说明
图1为根据本发明的搅拌器的立体图;
图2为图1所示搅拌器的正视图;
图3为图1所示搅拌器的侧视图;
图4为显示连接于可旋转的轴并混合杯中的冰激凌的搅拌器的示意图。
具体实施方式
根据本发明的食品混合搅拌器用数字10标示。搅拌器10优选由共聚多脂或聚乙烯塑料材料制成,并可以采用任何常规形状,但是优选为勺子形状。搅拌器10包括:杆部(用数字11标示);形成在杆部11的一端的轴连接部(用数字12标示);以及具有勺头形状且形成在杆部11的另一端的片状部13。
搅拌器10的轴连接部12包括大体为矩形的中空插口(用数字14标示),该插口具有敞开的顶部。插口14由底面15、相对的侧壁16以及相对的偏置板条17限定,所述相对的侧壁16从底面15向上延伸,所述相对的偏置板条17在所述侧壁16之间延伸。柔性夹片18安装于其中一个侧壁16上并且向上延伸高过插口14的顶部。倒锁钩19形成于夹片18上并高于插口14的顶部。
搅拌器10的杆部11具有I型杆的形状,杆部11包括由中心壁21连接(span)的相对的侧壁20。壁20和壁21从插口14的底面15向下延伸至片状部13。该I型杆形状为勺状搅拌器10提供强度,以在操作时抵抗潜在的扭矩和断裂。
但是,如果使用搅拌器10混合非常冰冻或者坚硬的材料,则片状部13或者甚至是I型杆形状的杆部11的断裂可能会随机发生,特别是在使用者没有注意的情况下可能会如之前所述的对使用者造成伤害。为了确保断裂总是发生在一个可识别的位置,I型杆的侧壁20形成有相对的狭槽或缺口22,该狭槽或缺口22朝向彼此向内延伸并在其间形成梁腹部23。孔24贯通中心壁21形成,并优选地与缺口22和梁腹部23大体上对齐。由此,缺口22、梁腹部23和孔24限定出搅拌器10的杆部11的薄弱部位。如在下文中将要详细描述的,如果搅拌器10发生折断,侧壁20将会在梁腹部23的薄弱部位断裂,中心壁21将会在孔24的区域处折断。
搅拌器10主要与用于混合食物产品的机器联合使用。为了充分理解具有代表性的机器及其操作,请参考2009年7月17日申请的序列号为12/460,273的未决的美国专利申请,该申请通过引用结合于此。
在这种机器中,搅拌器10连接于轴25以与轴25一起旋转,如图4所示。该功能可以通过将轴25的驱动端定位于插口14内来实现。当搅拌器10向上移动以实现此种连接时,夹片18弯曲,直到倒锁钩19与轴25的驱动端上的凸缘26接合。搅拌器10可以通过仅仅下拉搅拌器10而手动地与轴25脱离,或者混合机可以设置有自动搅拌器弹出系统。
如图4所示,当搅拌器10放置在食物产品27中时,例如杯子28中的冰激凌,轴25开始旋转,接着片状部13开始混合食物27。但是如果食物太硬因此阻碍了片状部13的旋转,并且如果杆部11上产生的扭矩超出了预定量,那么在发生任何破损之前,杆部11将在由缺口22、梁腹部23和孔24限定的薄弱部位发生断裂。这实质上将在薄弱部位撕裂搅拌器10的共聚多脂材料,而不会允许搅拌器10在其他部位随意断裂。
缺口22、梁腹部23和孔24的尺寸以及搅拌器10的材料决定了杆部11断裂所需的扭矩量。例如,将梁腹部23做小一些,杆部11将在较小的扭矩下断裂。类似地,将孔24做大一些,杆部11也将在较小的扭矩下断裂。因此,杆部11断裂所需的扭力值可以通过调整梁腹部23的尺寸和/或者孔24的尺寸来控制。
当混合冰激凌时,作用于杆部11的扭矩主要是冰激凌温度的函数。典型地,冰激凌杯在运送至便利店等类似场所时可能被冷冻到-15°F。当其在店里储存时,为方便顾客食用,冰激凌杯的温度可能被加热到6°F。在这种温度下,杆部断裂通常不是问题。但是,如果提供服务时杯的温度太低,例如为-6°F,则杆部断裂将成为问题。因此,如果冰激凌例如在-6°F下具有一定的食品硬度,则至少作为初始点,可以设定梁腹部23的尺寸和孔24的尺寸,以允许杆部11在薄弱部位断裂。已经发现,梁腹部23的尺寸大约为0.2英寸并且孔24具有大约相同的尺寸时,杆部会在-6°F时断裂。
鉴于上述情况,根据本文所述制造的用于食品混合机的搅拌器基本上改进了现有技术并且实现了本发明的目的。

Claims (20)

1.一种搅拌器,该搅拌器适于连接于可旋转的轴,以用于混合食物,所述搅拌器包括:杆部;位于所述杆部的一端并适于连接于所述轴的轴连接部;以及位于所述杆部的另一端用于混合食物的片状部,所述杆部具有薄弱部位,当所述搅拌器受到预定量的扭矩时,所述杆部将在所述薄弱部位断裂。
2.根据权利要求1所述的搅拌器,其中所述薄弱部位包括形成在所述杆部上的梁腹部。
3.根据权利要求2所述的搅拌器,其中所述薄弱部位包括形成在所述杆部上并与所述梁腹部对齐的孔。
4.根据权利要求3所述的搅拌器,其中所述梁腹部的尺寸和所述孔的尺寸取决于所述预定量的扭矩。
5.根据权利要求4所述的搅拌器,其中所述预定量的扭矩基于所混合的食物的硬度。
6.根据权利要求1所述的搅拌器,其中所述杆部包括相间隔的第一壁和第二壁,以及在所述第一壁和所述第二壁之间延伸的第三壁。
7.根据权利要求6所述的搅拌器,其中所述薄弱部位包括缺口,所述缺口形成在所述第一壁和所述第二壁中的至少一个上,并且所述缺口之间形成梁腹部。
8.根据权利要求7所述的搅拌器,其中所述薄弱部位包括形成在所述第三壁上的孔,所述孔与所述梁腹部对齐。
9.根据权利要求8所述的搅拌器,其中所述梁腹部的尺寸和所述孔的尺寸取决于所述预定量的扭矩。
10.根据权利要求9所述的搅拌器,其中所述预定量的扭矩基于所混合的食物的硬度。
11.根据权利要求1所述的搅拌器,其中所述片状部具有勺头的形状。
12.根据权利要求1所述的搅拌器,其中所述预定量的扭矩根据食物的硬度来确定,混合食物时所述片状部所受到的扭矩取决于食物的硬度。
13.一种制造搅拌器的方法,该搅拌器用于混合食物并具有杆部,所述杆部当受到预定扭矩时将断裂,所述方法包括沿所述杆部在所述杆部上的所需的可识别位置形成薄弱部位。
14.根据权利要求13所述的制造搅拌器的方法,所述方法还包括依据所述预定扭矩的大小确定所述薄弱部位的尺寸。
15.根据权利要求13所述的制造搅拌器的方法,其中形成薄弱部位的步骤包括在所述杆部上形成梁腹部。
16.根据权利要求15所述的制造搅拌器的方法,其中形成薄弱部位的步骤包括在所述杆部上形成孔。
17.根据权利要求16所述的制造搅拌器的方法,其中形成薄弱部位的步骤包括使所述梁腹部与所述孔对齐。
18.一种制造搅拌器的方法,该搅拌器用于混合食物并具有杆部,所述杆部在受到预定扭矩时将断裂,所述方法包括在所述杆部上形成薄弱部位,并依据所述预定扭矩的大小确定所述薄弱部位的尺寸。
19.根据权利要求18所述的制造搅拌器的方法,所述方法包括根据待由所述搅拌器混合的食物的硬度确定所述预定扭矩。
20.根据权利要求18所述的制造搅拌器的方法,其中形成薄弱部位的步骤包括在所述杆部上形成梁腹部和与该梁腹部对齐的孔。
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