CN1418165A - 拉链式可反复闭合的闭合组件 - Google Patents
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Abstract
本发明提供一种用于闭合组件的拉链齿形。齿形包括凸元件(106)和凹元件(100)。凹元件具有一对爪(101、121)以及一对臂(103,123),这对爪绕一个公共支点区(102)相对另一方可移动,每一个臂在支点区与一对爪中对应的一个连接。每个臂具有一个背离支点区的末端(104、105),其形状能与滑扣(208)配合。爪具有打开位置和闭合位置。当臂绕支点区位移时,臂的设计使爪在闭合位置和打开位置之间位移。这种绕支点区的位移可以通过滑扣相对臂的运动实现。当爪在闭合位置时凸元件被凹元件卡住,当爪处于打开位置时则被松开。
Description
技术领域
本发明涉及能反复闭合的闭合组件,应用于储存容器和其它用途。
背景技术
能反复闭合的闭合组件已经成为储存容器行业中的固定装置。特别是,热塑性袋已经历经几代的闭合组件。
在先前工艺中,制造具有配对齿形的塑料袋是公知的,因此通过手指用力使齿形啮合可以闭合袋,并且通过手指用力使齿形分离可以打开袋。
对于闭合和打开恰当配合的塑料袋,闭合组件也是公知的。使用滑扣能够便于闭合和打开这种塑料袋。闭合组件包括具有凸元件和凹元件的齿形带,它们与跨骑在拉链带上的滑扣协同工作。当朝一个方向拉时,滑扣能将凹元件和凸元件啮合在一起;当朝相反方向拉时,将齿形分开。一般地,将分离手指放在滑扣的顶部内板上,将凸元件和凹元件分开。
发明内容
在第一实施例中,拉链组件的拉链齿形包括凸元件和凹元件。凹元件具有一对爪,这对爪绕一个公共支点区相对另一方可移动。凹元件还具有一对臂,每一个臂在支点区与一对爪中对应的一个连接。每个臂具有一个末端,背离支点区并且其形状能与滑扣配合。爪具有打开位置和闭合位置,当臂绕支点区位移时,臂的设计使爪在闭合位置和打开位置之间移动。这种绕支点区的位移是通过滑扣相对臂运动实现的。当爪在闭合位置时凸元件被凹元件卡住,当爪处于打开位置时则松开。
根据本发明的另一个实施例,凸元件包括与滑扣配合的末端区。在又一个实施例中,凹元件爪中的一个包括第一钩,凸元件包括具有第二钩的尖端。当爪闭合时第一钩和第二钩啮合。
在本发明的另一个实施例中,拉链组件包括具有凹元件的第一齿形带,其中凹元件具有一对爪,这对爪绕一个公共支点区相对另一方可移动。第一齿形带的凹元件还包括一对臂,在支点区臂与一对爪中对应的一个连接。一对臂中的每个臂具有一个末端,背离支点区并且其形状能与滑扣配合。爪具有打开位置和闭合位置,当臂绕支点区位移时,臂的设计使爪在闭合位置和打开位置之间移动。这种绕支点区的位移是通过滑扣相对臂运动实现的。拉链组件还包括具有凸元件的第二齿形带。当爪在闭合位置时凸元件被凹元件卡住,当爪处于打开位置时则松开。滑扣相对带在纵向可以移动,从而使臂绕支点区产生位移。
根据本发明的另一特征,第一齿形带在纵向末端附近具有停止位置。臂中的一个被截掉,因此当滑扣位于停止位置时,滑扣不能使臂绕支点区产生位移,爪仍保持闭合位置。
在本发明又一个实施例中,滑扣具有头端和尾端(在附图所示的实施例中“头端”是滑扣的宽端,“尾端”是滑扣的窄端)。滑扣的横截面上还包括卡住臂末端的第一通道和卡住凸元件末端区的第二通道。通道的间距沿纵轴方向是变化的,头端的间距大于尾端。以这种方式,滑扣朝尾端方向的运动将凸元件的末端区与臂的末端拉开,同时爪处于打开位置,凸元件远离开凹元件。另外,第二通道具有入口并包括一个限位,这个限位位于入口处靠近滑扣头端。限位限制凸元件尖端的斜向移动并且当爪处于闭合位置时使尖端容易与第一钩的啮合。在此实施例中,滑扣的横截面可以具有顶部和底部,并且第一和第二通道可以布置在横截面上使它们在垂直方向上相互偏移。另外,通道之间的间距在滑扣尾端附近的第一区可以保持不变,在滑扣头端附近的第二区可以逐渐增大,并且头端的间距可相对较大。第一通道的宽度在第二区也可以(或可供选择地)逐渐减小(宽度在尾端附近比较大)并且宽度在第一区保持基本不变。
根据本发明的另一个特征,提供了可拆开的闭合第一侧面与第二侧面的方法。第一侧面具有第一齿形带,其中第一齿形带包括具有一对爪的凹元件,爪具有打开位置和闭合位置并通过滑扣的纵向运动实现打开和闭合。第二侧面具有第二齿形带,其中第二齿形带包括凸元件。此实施例的方法包括提供相对带可纵向移动的滑扣。滑扣的第一纵向区用于保持爪处于打开位置,同时使凸元件移入爪中;滑扣的第二纵向区用于使爪从打开位置移到闭合位置。滑扣沿带的纵向滑动,使带过渡到一个状态,在此状态中,沿带的至少一部分,凸元件位于爪中并且爪闭合。
根据本发明的又一个实施例,制造闭合组件的方法包括提供具有凹元件的第一齿形带,第一齿形带具有一对臂,每一个臂具有一个末端,其形状与滑扣配合;还提供具有凸元件的第二齿形带,第二齿形带具有与滑扣配合的末端区;以及滑扣,滑扣具有从顶部一端垂下的第一侧腿和从顶部相反一端垂下的第二侧腿。凸元件的末端区被废弃一段长度,废弃的长度大于滑扣的长度;凹元件的顶臂也被废弃一段长度,废弃的长度大于滑扣的长度。滑扣第一侧腿的下端与凹元件的底臂配合,旋转滑扣的顶部直到滑扣跨骑在齿形带上。
在另一实施例中,制造闭合组件的方法包括提供第一侧面和第二侧面,第一侧面从凹元件的下爪垂下,第二侧面从凸元件垂下。旋转滑扣的顶部后,滑扣沿齿形移动,与母齿形未截掉的臂与公齿形末端区配合。这种方法还包括切下齿形和侧面形成可反复闭合的闭合组件的零件。
在本发明的另一个实施例中,形成齿形带用于可反复闭合的闭合组件的方法包括通过模具挤压熔融材料。模具具有与所需齿形形状相近的开口。熔融材料从模具中拉出使熔融材料落入水池中。接着在水池中调整熔融材料。熔融材料可以用调整装置调整,该调整装置具有将外边界放在熔融材料上的第一部分和保持熔融材料内部空间的第二部分。
根据本发明的再一个实施例,形成用于可反复闭合的闭合组件的齿形带的方法包括通过模具挤压熔融材料。模具具有与所需齿形形状相近的开口。熔融材料从模具中拉出并落入水池中。水池具有第一区和第二区,控制第一区的温度,使其与第二区相比处于一个选定的较热温度。
附图说明
结合附图,并参考下面的详细描述,能更容易理解本发明的上述特征。附图中:
图1是根据本发明实施例的拉链齿形的横截面视图;
图2是一个实施例从滑扣窄端截取的横截面视图;
图3是图2实施例从滑扣中部截取的横截面视图;
图4是图2实施例从滑扣宽端截取的横截面视图;
图5是图2实施例的横截面视图,表示处于停止区的齿形修改;
图6表示根据本发明另一个实施例制造拉链组件方法的步骤的流程图;
图7是表示图6实施例中装滑扣方式的横截面视图;
图8是根据本发明方法实施例使用的调整装置的横截面。
具体实施方式
图1是根据本发明实施例的拉链齿形的横截面视图。凹元件100具有一对爪101和121,绕支点区102相对另一方而运动。一对臂103和123在支点区102与一对爪101和121对应连接。臂103和123每个都有一个背离支点区102的末端104和105,其形状与滑扣配合,配合方式参考附图在下面讨论。当爪101和121处于闭合位置时可以卡住凸元件106,而当爪处于打开位置时可以松开凸元件。元件100和106的每一个可以分别看成用于是啮合和分离的齿形部分131和132,以及用于连接到,例如,适于闭合的壁上的翼片部分133和134。我们有时将带有与之相关的齿形部分的元件称为“齿形带”。
图2-4是表示根据本发明一个实施例的闭合组件的剖视图。图2是一个实施例从滑扣窄端截取的横截面视图,图3是图2实施例从滑扣中部截取的横截面视图,图4是图2实施例从滑扣宽端截取的横截面视图(我们有时将窄端称为“尾端”,将宽端称为“头端”)。第一齿形带210的凹元件100有一对爪101和121,绕支点区102相对另一方而运动。一对臂103和123中的每一个在支点区102与一对爪101和121对应连接。臂103和123的每一个都有一个背离支点区102的末端104和105,其形状与滑扣208配合。第二齿形带220的凸元件106包括与滑扣208啮合的末端区207。凹元件100的一个爪121包括第一钩209,凸元件106包括具有第二钩211的尖端201。如下面将要详细描述的一样,在此实施例中,臂103和123,通过支点区102的作用,挤压在一起以打开爪101和121,其方式类似于挤压装有弹簧的晒衣夹的末端打开晒衣夹。
滑扣208的横截面包括用于卡住臂103和123的末端104和105的第一通道212,以及用于卡住凸元件106的末端区207的第二通道213。通道212和213的间隔在其纵轴截面上是变化的。在图2的尾端和图3的中部之间没有变化。然而,当滑扣相对齿形的一点移动时,此点从尾端移动到中部,也就是滑扣向尾端方向运动,使爪打开,但凸元件仍保留在其中。爪的打开是因为第一通道212的宽度在图2中的尾端和图3中的中部之间逐渐变窄,宽度的变窄使臂103和123被压在一起,从而打开爪101和121。与爪的工作相协调,一旦爪在滑扣的中部打开,通道212和213的间隔从滑扣的中部到图4所示的头端逐渐增大。以这种方式,滑扣208向尾端方向的运动将凸元件106完全从臂103和123的末端拉出,而此时爪101和102保持在打开位置。因此,将凸元件106从凹元件100中拉出。当然,使用涉及滑扣的术语“中部”是相对的。通道212和213之间的间距在无变化和逐渐变化之间的过渡的精确位置与设计时的选择有关,并且同样地,通道212的宽度在无变化和逐渐变化之间的过渡的位置也与设计时的选择有关。此外,这些过渡的位置不需要精确地处于相同位置。
在此实施例中,滑扣208的横截面具有顶227和底228。第一通道212和第二通道213位于横截面中,二者在垂直方向相互偏移。
图2表示当爪101和121在滑扣的208的窄端处于闭合位置时第一钩209和第二钩211之间是如何啮合的。在滑扣208的窄端,通道212和213相互比较靠近。因此,将凹元件100和凸元件106相互推近。第一钩209钩住尖端201,并且凸元件的钩211与第一钩209相互锁住以保证紧密的闭合。当图2中的滑扣窄端通过齿形带210和220时,带之间相互扣紧。由于上述过程是可逆的,滑扣沿相反方向的运动产生打开带的结果。
图3是图2实施例从滑扣中部截取的横截面视图。图中表示,当滑扣208开始朝尾端方向移过齿形带210和220时,第一通道212的宽度变窄,因此将凹元件100的臂103和123压向一起。臂103和123绕支点区102位移,爪101和121打开,将第一钩209与第二钩201分离。
图4是图2实施例从滑扣宽端截取的横截面视图。图中表示,在滑扣208的宽端,凹元件100的爪101和121处于打开位置,滑扣208的通道212和213之间的距离最大。凸元件106与凹元件100全部分开,凸元件106完全从爪101和121中释放出来。突起401在通道213处提供限位,以防止凸元件106的尖端211相对末端区207的斜向移动。以这种方式,尖端211被突起401限制,不能移向末端区207,而仍保持在原位置;当滑扣沿头端方向运动时,尖端能容易地重新进入凹元件100的爪101和121中。
图5是图2实施例的横截面视图,表示处于停止区的齿形修改。停止区形成在第一齿形带210的纵向末端附近,并且图5所示的就是这一末端。通过当拉链闭合时为滑扣208的宽端提供放置的空间用于停止区能防止漏出。在停止区,凹元件500的一个臂103被截掉,因此当滑扣208处于停止区时,滑扣不能引起臂103和123绕支点区102的位移,并且爪101和121处于闭合位置。优选地,凸元件的末端部分207也被截掉。因为位于滑扣208宽端中的齿形部分不完整,缺少一对臂中一个并且优选地也缺少凸元件的末端部分207,所以滑扣不能打开爪101和121或者将凸元件106从凹元件500中拉出。因此,凸元件106和凹元件500保持闭合状态。需要注意的是,截掉臂103的长度或者截掉臂的第一齿形带210的长度优选地小于滑扣208的长度,因此整个齿形210恰好在滑扣208的窄端啮合。以这种方式,齿形210在滑扣208中保持扣接,因此当滑扣208朝尾端方向拉以分离凸和凹元件时,整个齿形210移入滑扣208的整个长度内,打开齿形。
图6表示根据本发明另一个实施例制造闭合组件方法的步骤的流程图。过程601提供包括凹元件的第一齿形带,其中凹元件具有一对臂。每个臂具有末端,其形状与滑扣配合。过程602提供第二齿形带。第二齿形带包括凸元件,其末端区与滑扣配合。并且,过程603提供滑扣,滑扣具有第一侧腿从顶部分的一端垂下,以及第二侧腿从顶部分相反的一端垂下。
过程604将凸元件的末端区废弃,废弃部分的长度大于滑扣长度。另外,过程605将凹元件的顶臂废弃,废弃部分的长度大于滑扣长度。如同下面参考图7的详细描述一样,过程606将滑扣第一侧腿的下端与凹元件的底臂配合,过程607将滑扣的顶部分旋转直到它跨骑在齿形带上。
图7是表示图6实施例中装滑扣方式的横截面。再一次,将第一侧腿700的下端701与凹元件703的底臂702配合,旋转滑扣705的顶部分704直到滑扣第一侧腿700和第二侧腿706跨骑在齿形带上。为了提供间隙用于以这种方式并在长度大于滑扣的部分上旋转滑扣,凹元件的顶臂703和凸元件707的末端区被废弃。一种废弃的方法是简单地切除它们。另外的方法是,可以使用合适的热成形设备将其整平,或者也可以部分去除它们得到足够的间隙。随后,当滑扣705沿齿形带运动时,滑扣离开凹元件703的顶臂和凸元件707的末端区被废弃的区域,将凹元件703的未去除臂和凸元件707的未去除末端区(以图2-4所示的方式)卡在滑扣705的适当通道中。
如果闭合组件应用于塑料膜制作能反复闭合的塑料袋,袋与袋之间的切断通过废弃区,并且具有端部中止,恰好留下足够的废弃区仅与滑扣705的宽端配合,因此形成如前所述的停止区。
本发明的齿形带可以用任何适合的方法制成,可以通过模具挤压或注塑成形制得。例如,可以将熔融的塑料挤压过一个模具,模具具有开口,开口的形状与所需齿形带相近,但尺寸较大。熔融齿形通常(尽管不是必需)被从模具中拉出,拉出速度高于熔融材料离开模具的速度,从而将齿形拉制成较小的横截面尺寸。接着,通常通过浸入水池中或通过喷水冷却熔融的齿形。
在形成齿形带时,必须注意能影响性能的凹元件100的形状。爪101和121以及臂103和123的形状决定闭合的效果,以防止无意的打开,并且使用这种组件能容易地拉上和拉开拉链。
一种制造的方法是设计模具,使其具有所需的齿形形状,接着将熔融塑料挤压到水中,调节操作条件以精确控制得到的产品形状。对于凹元件100,发现很多操作参数影响它的形状。特别是,凹元件爪的形状通过下面方法将更加接近(形成紧密的闭合):1)较大的模具与水面之间的距离;2)较热的水;3)较高的速度;4)较小的拉制(较低的取出速度)。
这种方法的实施例是建立间距、速度和拉制以满足其它产品和过程的需要,接着,调节水温控制形状。但是,用最冷的水能达到最高的速度,因此用较热的水需要降低速度。为了达到控制而不降低速度,水池可以分区,因此有一个熔融材料首先进入的部分,也就是控制在较高温度的部分,并且水池其余部分尽可能达到实际中的最低程度。在一个实施例中,这个分区的区域约占水下路径的20%。
制造方法的另一个实施例包括通过模具挤压凹元件的熔融齿形,模具的尺寸约为最终齿形尺寸的1.5~2倍,并向下挤入水池中。通过一个调整装置80形成最终形状,图8表示此装置的横截面,此装置位于水下。调整装置80具有多个零件,零件能收回,接着移入到位进行生产。其总垂直长度约12英寸。与熔融塑料接触的零件是金属的,并具有槽使水到达塑料进行冷却。调整装置80的横截面开口81略大于齿形以防止阻塞,也能以所需的形状推压和保持齿形。调整装置80是模拟模具,但具有较大的公差以适应齿形尺寸的通常变化。调整装置80具有第一部分82,放置在凹元件100的爪101和121的外边界,当齿形冷却时将其保持在闭合位置;以及第二部分83,作为芯棒放置在爪101和121内,以保持爪101和121之间的内部空间,并且当在使用过程中形成闭合时能有效卡住凸元件106。
在本发明的不同实施例中,每个齿形带具有两个不同的部分:互锁的齿形部分和封闭在闭合物壁中的翼片部分,例如用于可反复闭合袋的塑料膜(例如,参见图1,其中,凹元件100具有齿形部分131和翼片部分133,凸元件106具有齿形部分132和翼片部分134)。这两部分,齿形部分和翼片部分,可以用相同的熔融物质源制成,或者由两台不同挤压机完成。如果是单独的熔融物质源,那么确定模具中翼片相对于齿形的厚度。如果有不同的熔融物质源,可以在生产过程中通过控制两台挤压机的相对速度调整翼片的厚度,也可以使用不同材料制作翼片和齿形。单独的挤压机简单并且在设备投资方面成本低,但是双物质源提供了更大的制造灵活性和过程的控制能力。
在另一个实施例中,使用单独的挤压机,并且材料是高压低密度聚乙烯。模具和水面之间的空气间距保持在实际能达到的尽可能小的值,为1.3cm。如果此间距较大,就有较大距离将翼片拉入水,使翼片较窄并较厚。这不是所需的,因为这需要模具中的间隙较窄。此间隙已经是最小值了,是机加工的限制所确定的。
类似地,滑扣可以模铸成整个零件,或者生产成不同部件然后组装。滑扣也可以注射工艺成形或者以任何合适的方式模制。
Claims (32)
1.一种用于闭合组件的拉链齿形,包括:
凸元件和凹元件,
凹元件具有:(i)一对爪,这对爪绕一个公共支点区相对另一方可移动;(ii)一对臂,每一个臂在支点区与上述的一对爪中对应的一个连接,并且每个臂具有一个背离支点区的末端,末端形状能与滑扣配合;
爪具有打开位置和闭合位置,当臂绕支点区位移时,臂的设计使爪在闭合位置和打开位置之间位移,这种位移是通过滑扣相对臂的运动实现的;和
当爪在闭合位置时凸元件被卡住,当爪处于打开位置时凸元件则被松开。
2.如权利要求1所述的拉链齿形,其特征在于凸元件包括与滑扣配合的末端区。
3.如权利要求1所述的拉链齿形,其特征在于爪中的一个包括第一钩,并且凸元件包括具有第二钩的尖端,当爪闭合时第一钩和第二钩啮合。
4.一种闭合组件,包括:
第一齿形带,第一齿形带包括凹元件,其中凹元件具有:(i)一对爪,这对爪绕一个公共支点区相对另一方可移动;(ii)一对臂,每一个臂在支点区与上述的一对爪中对应的一个连接,并且每个臂具有一个背离支点区的末端,末端的形状能与滑扣配合;
爪具有打开位置和闭合位置,当臂绕支点区位移时,臂的设计使爪在闭合位置和打开位置之间位移,这种位移是通过滑扣相对臂的运动实现的;
第二齿形带,第二齿形带具有凸元件,当爪在闭合位置时凸元件被卡住,当爪处于打开位置时凸元件则被松开;和
滑扣,相对带在纵向可以移动,用于使臂绕支点区产生位移。
5.如权利要求4所述的闭合组件,其特征在于第一齿形带在纵向末端附近具有停止区,其中臂中的一个被截掉,因此当滑扣位于停止区时,(i)滑扣不能使臂绕支点区产生位移,并且(ii)爪仍保持在闭合位置。
6.如权利要求4所述的闭合组件,其特征在于凸元件包括与滑扣配合的末端区。
7.如权利要求5所述的闭合组件,其特征在于凸元件包括与滑扣配合的末端区,并且在停止区凸元件的末端区被截掉。
8.如权利要求6所述的闭合组件,其特征在于滑扣具有头端和尾端以及横截面,横截面包括卡住臂末端的第一通道和卡住凸元件末端区的第二通道,所述通道的间距沿纵轴方向是变化的,通道在头端的间距大于尾端的间距,滑扣朝尾端方向的运动将凸元件的末端区与臂的末端拉开,同时爪处于打开位置,以这种方式使凸元件远离开凹元件。
9.如权利要求4-8中任一项所述的闭合组件,其特征在于爪中的一个包括第一钩,并且凸元件包括具有第二钩的尖端,当爪闭合时第一钩和第二钩啮合。
10.如权利要求8所述的闭合组件,其特征在于第二通道具有入口并包括一个限位,所述限位位于入口处靠近滑扣头端,从而限制凸元件尖端相对末端区的斜向移动,并且当爪处于闭合位置时使尖端容易与第一钩啮合。
11.如权利要求8所述的闭合组件,其特征在于滑扣的横截面具有顶和底,并且第一和第二通道布置在横截面上使它们在垂直方向相互偏移。
12.如权利要求8所述的闭合组件,其特征在于间距在尾端附近的第一区保持基本不变,间距在头端附近的第二区逐渐增大,从而在头端间距较大。
13.如权利要求8所述的闭合组件,其特征在于第一通道的宽度在滑扣尾端附近的第二区逐渐减小,从而宽度在尾端较大,并且宽度在滑扣头端附近的第一区保持基本不变。
14.一种可反复闭合的袋,包括:
第一齿形带,其中第一齿形带包括凹元件,其中凹元件具有:(i)一对爪,这对爪绕一个公共支点区相对另一方可移动;(ii)一对臂,每一个臂在支点区与一对爪中对应的一个连接,并且每个臂具有一个背离支点区的末端,其形状能与滑扣配合;
爪具有打开位置和闭合位置,当臂绕支点区位移时,臂的设计使爪在闭合位置和打开位置之间位移,这种位移是通过滑扣相对臂的运动实现的;
第二齿形带,第二齿形带具有凸元件,当爪在闭合位置时凸元件被卡住,当爪处于打开位置时则被松开;
从凹元件上垂下的第一侧面;和
从凸元件上垂下的第二侧面。
15.如权利要求14所述的可反复闭合的袋,其特征在于,还包括:
滑扣,相对带在纵向可以移动,用于使臂绕支点区产生位移。
16.如权利要求15所述的可反复闭合的袋,其特征在于第一齿形带在其纵向末端附近具有停止区,其中臂中的一个被截掉,因此当滑扣位于停止区时,(i)滑扣不能使臂绕支点区产生位移,并且(ii)爪仍保持在闭合位置。
17.如权利要求15所述的可反复闭合的袋,其特征在于凸元件包括与滑扣配合的末端区。
18.如权利要求15所述的可反复闭合的袋,其特征在于滑扣具有头端和尾端以及横截面,横截面包括卡住臂末端的第一通道和卡住凸元件末端区的第二通道,通道的间距沿纵轴方向是变化的,通道在头端的间距大于尾端,滑扣朝尾端方向的运动将凸元件的末端区与臂的末端拉开,同时爪处于打开位置,以这种方式凸元件远离开凹元件。
19.如权利要求14所述的可反复闭合的袋,其特征在于爪中的一个包括第一钩,并且凸元件包括具有第二钩的尖端,当爪闭合时第一钩和第二钩啮合。
20.如权利要求18所述的可反复闭合的袋,其特征在于第二通道具有入口并包括一个限位,所述限位位于入口处靠近滑扣头端,从而限制凸元件相对末端区的斜向移动,并且当爪处于闭合位置时使尖端容易与第一钩的啮合。
21.如权利要求18所述的可反复闭合的袋,其特征在于滑扣的横截面具有顶和底,并且第一和第二通道布置在横截面上,从而使第一和第二通道在垂直方向相互偏移。
22.如权利要求18所述的可反复闭合的袋,其特征在于间距在尾端附近的第一区保持不变,间距在头端附近的第二区逐渐增大。
23.如权利要求18所述的可反复闭合的袋,其特征在于第一通道的宽度在第一区逐渐减小,并且宽度在第二区保持基本不变。
24.一种可拆开地闭合第一侧面与第二侧面的方法,其中,
(i)第一侧面具有其中第一齿形带,第一齿形带包括具有一对爪的凹元件,爪具有打开位置和闭合位置,并通过滑扣的纵向运动实现爪的打开和闭合;
(ii)第二侧面具有第二齿形带,第二齿形带具有凸元件;
所述方法包括:
提供相对带可纵向移动的滑扣;
用滑扣的第一纵向区来保持爪处于打开位置,同时使凸元件移入爪中;
用滑扣的第二纵向区使爪从打开位置移到闭合位置;和
沿带的纵向滑动滑扣,使带过渡到一个状态,在这个状态中沿带的至少一部分,凸元件位于爪中并且爪是闭合的。
25.一种制造闭合组件的方法,所述方法包括
提供第一齿形带,第一齿形带包括凹元件,凹元件具有一对臂,每一个臂具有一个末端,末端的形状与滑扣配合;
提供第二齿形带,第二齿形带具有凸元件,凸元件具有与滑扣配合的末端区;
提供滑扣,滑扣具有从顶部一端垂下的第一侧腿和从顶部相反一端垂下的第二侧腿;
废弃凸元件的末端区一段长度,废弃的长度大于滑扣的长度;
废弃凹元件的顶臂一段长度,废弃的长度大于滑扣的长度;
将第一侧腿的下端与凹元件的底臂配合;和
旋转滑扣的顶部直到滑扣跨骑在齿形带上。
26.如权利要求25所述的方法,其特征在于,还包括:
提供第一侧面和第二侧面,第一侧面从凹元件的下爪垂下,第二侧面从凸元件垂下;
旋转滑扣的顶部后,沿齿形移动滑扣,使凹齿形未被截掉的臂与凸部分的末端区配合;和
切下齿形和侧面,以形成可反复闭合的闭合组件的零件。
27.一种形成齿形带的方法,所述齿形带用于可反复闭合的闭合组件,包括:
通过模具挤压熔融材料,所述模具具有与所需齿形形状相近的开口;
将熔融材料从模具中拉出,使熔融材料落入水池中;和
在水池中调整熔融材料。
28.如权利要求27所述的方法,其特征在于模具开口的容积是所需齿形的1.5~2倍。
29.如权利要求27所述的方法,其特征在于熔融材料用调整装置调整,调整装置具有将外边界放在熔融材料上的第一部分和保持熔融材料内部空间的第二部分。
30.如权利要求28所述的方法,其特征在于调整装置的横截面积大于所需齿形的横截面积。
31.一种形成齿形带的方法,所述齿形带用于可反复闭合的闭合组件,包括:
通过模具挤压熔融材料,模具具有与所需齿形形状相近的开口;
将熔融材料从模具中拉出,使熔融材料落入水池中,水池具有第一区和第二区,控制第一区的温度,使第一区与第二区相比处于一个选定的较高温度。
32.如权利要求31所述的方法,其特征在于第一区占据水池的10~40%。
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CNB018064582A Expired - Fee Related CN1206134C (zh) | 2000-03-15 | 2001-03-15 | 拉链式可反复闭合的闭合组件 |
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US (2) | US6439771B1 (zh) |
EP (1) | EP1263656A2 (zh) |
JP (1) | JP2003526582A (zh) |
CN (1) | CN1206134C (zh) |
AU (1) | AU2001245782A1 (zh) |
CA (1) | CA2403083C (zh) |
HK (1) | HK1053632A1 (zh) |
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-
2000
- 2000-06-13 US US09/592,327 patent/US6439771B1/en not_active Expired - Fee Related
-
2001
- 2001-03-15 JP JP2001566982A patent/JP2003526582A/ja not_active Withdrawn
- 2001-03-15 CA CA002403083A patent/CA2403083C/en not_active Expired - Fee Related
- 2001-03-15 AU AU2001245782A patent/AU2001245782A1/en not_active Abandoned
- 2001-03-15 CN CNB018064582A patent/CN1206134C/zh not_active Expired - Fee Related
- 2001-03-15 WO PCT/US2001/008394 patent/WO2001068465A2/en not_active Application Discontinuation
- 2001-03-15 EP EP01918739A patent/EP1263656A2/en not_active Withdrawn
-
2002
- 2002-06-28 US US10/184,203 patent/US20020168119A1/en not_active Abandoned
-
2003
- 2003-08-22 HK HK03106044A patent/HK1053632A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HK1053632A1 (en) | 2003-10-31 |
US20020168119A1 (en) | 2002-11-14 |
WO2001068465A3 (en) | 2002-05-23 |
AU2001245782A1 (en) | 2001-09-24 |
US6439771B1 (en) | 2002-08-27 |
JP2003526582A (ja) | 2003-09-09 |
WO2001068465A2 (en) | 2001-09-20 |
CN1206134C (zh) | 2005-06-15 |
EP1263656A2 (en) | 2002-12-11 |
CA2403083A1 (en) | 2001-09-20 |
CA2403083C (en) | 2004-11-23 |
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