CN101631682B - 用于可缩进器具的密封组件 - Google Patents

用于可缩进器具的密封组件 Download PDF

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CN101631682B
CN101631682B CN2007800507387A CN200780050738A CN101631682B CN 101631682 B CN101631682 B CN 101631682B CN 2007800507387 A CN2007800507387 A CN 2007800507387A CN 200780050738 A CN200780050738 A CN 200780050738A CN 101631682 B CN101631682 B CN 101631682B
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D·A·戴尔基维奇
R·G·查尔曼
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Abstract

公开了一种用于具有涂覆器元件(22)的可缩进器具(10)的密封组件(32)，密封组件(32)包括基部(34)、被附接到基部(34)的至少两个指状件(36)和围绕基部(34)的套筒(38)。当可缩进器具(10)处于缩进位置中时，套筒(38)约束指状件(36)从而指状件(36)处于完全关闭状态中并且密封涂覆器元件(22)。基部(34)相对于套筒(38)的伸出允许指状件(36)打开，由此暴露出涂覆器元件(22)。因此，密封组件打开以暴露出涂覆器元件从而该涂覆器元件处于涂覆位置中；然而，密封组件无任何元件接触该涂覆器元件以从该涂覆器元件转移流体，由此消除了密封退化的可能性。

Description

用于可缩进器具的密封组件
技术领域
本公开主要涉及用于器具的密封组件，并且更加具体地涉及一种用于例如可缩进标记器之类可缩进器具的密封组件。
背景技术
无帽器具例如无帽式可缩进标记器已被研制出来以解决与具有外帽的可缩进器具相关联的问题和不便。这种不便包括必须使用两只手来“对带有外帽的标记笔进行摘帽和戴帽”，并且当对涂覆器元件(例如书写尖端)进行戴帽或者摘帽时易于丢失外帽。参见例如美国专利No.6,981,812(′812专利)(提供对于与使用帽体的现有技术书写器具相关联的问题的说明)。一种无帽式可缩进器具包括将无帽式可缩进标记笔的罩体隐藏在笔管内，并且利用安装于在笔管顶部中的致动装置来控制书写尖端的伸出和缩进。
虽然无帽式可缩进书写器具与具有外帽的标记器或者笔相比具有优越的竞争优势，但是无帽器具有若干问题。例如，在可缩进器具中的目前的密封元件是不可靠的，这是因为在长期的使用、时间或者调节之后它们经常无法形成密封。另外，这种密封组件经常是不可重复的，即，它们无法在每次使用之后均提供适当的密封。另外，“组装过程是复杂的、耗时的”并且难以“在大批量生产中提速”。参见例如′812专利第2栏、第63至65行(解释了“常规的无帽式可缩进标记笔仍然具有需要解决的很多问题”)。
用以解决这些问题的大部分尝试损害了密封可靠性和可重复性之一或这两者。更加具体地，很多目前的设计直接地或者间接地依赖于在涂覆器元件组件(例如笔尖组件)与阀门之间的接触以推压阀门从关闭状态打开。然而，由于在涂覆器元件和阀门这两者上均产生磨损，这种接触损害了阀门密封的可靠性。另外，因为涂覆器元件通常在接触时沉积流体，在涂覆器元件与阀门之间的任何相互作用均导致流体被沉积在阀门的密封结构上。反复的相互作用导致额外的流体沉积在密封结构上，由此引起密封品质退化以致密封失效并且将涂覆器元件暴露于周边环境。由于在涂覆器元件和阀门之间的连续接触而导致流体沉积物的积聚能够进一步在缩进期间引起涂覆器元件和储液器保持器组件结合或者粘着。
更加具体地，这种流体蓄积继续进行以致由流体(或者流体的残余组分)的粘性产生的作用力防止了涂覆器元件和储液器保持器部件的正确伸出和缩进之一或这两者。在缩进期间，流体沉积物可以在阀门本体的内壁内、在涂覆器元件组件中的管子的外壁内、以及在这二者之间蓄积。在伸出期间，先前被沉积到阀门上的流体还可以被转移回涂覆器元件组件中的管子的外壁上。这种流体转移是可能的，这是因为，在涂覆器元件推压阀门使之打开后，已经接触涂覆器元件的阀门继续保持与管子的外壁接触。
目前的设计还依靠各种为可缩进器具(例如标记器)提供可重复密封的依赖于机械或者材料的装置。这些方法中的每一种看起来都提供了不同程度的密封可重复性。然而，依靠材料弹性来返回关闭位置的密封的可重复性的设计均遭受循环和老化的影响。例如，在长期使用和被暴露于各种条件之后，密封可重复性受到损害以致涂覆器元件被暴露于周边环境。依靠机械装置提供可重复密封的设计看起来为可缩进器具提供了一种较为具有可重复性的密封；然而，这种设计的复杂性经常引起机械故障。参见例如美国专利No.5,022,773(′773专利)。该′773专利披露了一种具有柔韧钢制构件(24)的设计，该构件带有为密封构件提供关闭作用力的弹簧夹(22)。这个密封部件设计遭受与先前所述相同的流体(例如墨水)的蓄积问题，这是因为书写尖端(34)自身在推进穿过密封构件时推压弹簧夹打开。而且，因为由弹簧夹产生的径向作用力的大小，书写尖端在穿过密封部件而伸出和缩进时经常受损。
发明内容
本发明改进了用于可缩进器具例如笔、标记器等的密封组件的可靠性和可重复性。具体地，密封组件被联接到内部器具组件，由此允许当该器具伸出和缩进时该密封组件进行约束运动。
根据本公开的一个方面，一种用于可缩进器具的密封组件包括基部、被联结到该基部的至少两个指状件，和部分地围绕该基部的套筒。当该可缩进器具处于缩进位置中时，该套筒约束该指状件从而该指状件处于完全关闭状态中，由此有效地密封该器具的涂覆器元件。该基部相对于该套筒的伸出允许该指状件打开，由此暴露出该涂覆器元件。该密封组件可以被联接到涂覆器元件组件，以允许该密封组件和该涂覆器元件组件同时地伸出。该密封组件的基部还可以包括凸缘，从而该基部的凸缘与置于可缩进器具的管子的内侧表面上的内凸缘相接合。
该密封组件可以还包括端部密封，所述端部密封置于组件上与该涂覆器元件相对以密封该基部。此外，该密封组件的该套筒为处于缩进位置中的该组件的指状件提供承座。
该基部和指状件继续伸出，直至该器具的鼻部中的限位器接合该套筒的限位器，由此约束该基部和指状件的伸出、并且同时地允许该涂覆器元件完全伸出该可缩进器具并且进入涂覆位置中。此外，在该涂覆器元件缩进期间，置于该套筒上的一组限位器与置于该器具本体上的一组限位器相接合，由此防止进一步缩进并且允许该指状件围绕该涂覆器元件关闭并且密封该该涂覆器元件。
该密封组件可以进一步包括筒夹或者筒夹式阀。
根据本公开的另一个方面，一种可缩进书写器具包括本体和被置于该本体的第一端部处的鼻部，和被置于该本体内的并且包括笔尖的内部书写组件。该可缩进书写器具还包括被联接到该内部书写组件的密封组件；该密封组件包括基部、被附接到该基部的至少两个指状件，和部分地围绕该基部的套筒。当该可缩进书写器具处于缩进位置中时，该套筒约束该指状件从而使得该指状件处于完全关闭状态中，由此有效地密封该笔尖。该基部相对于该套筒的伸出允许该指状件打开，由此暴露出该笔尖。
根据本公开的另一个方面，一种可缩进器具包括：本体、和被置于该本体的第一端部处的鼻部、以及被置于该本体内且包括着涂覆器元件的内部组件。该可缩进器具还包括被联接到该内部组件的密封组件，其中该密封组件包括基部、被附接到该基部的至少两个指状件，和部分地围绕着该基部的套筒。当该可缩进器具处于缩进位置中时，该套筒约束该指状件从而使得该指状件处于完全关闭状态中并且密封该涂覆器元件，并且该基部相对于该套筒的伸出允许该指状件打开，由此暴露出该涂覆器元件。
附图说明
当与下图之一或者多图相结合地阅读以下说明时，本公开的目的、特征和优点将变得清楚。
图1是具有根据本公开的密封组件的、处于伸出位置中的无帽式可缩进器具的透视图；
图2是被联接到内部器具组件的、本公开的密封组件的前透视图；
图3是处于伸出位置中的、本公开的密封组件的前视图；
图4是处于伸出位置中的、图1的无帽式可缩进器具的截面视图；
图5是本公开的密封组件的截面视图，其中被部分地示出的可缩进器具处于缩进位置中；
图6是本公开的密封组件的截面视图，其中被部分地示出的可缩进器具处于伸出位置中；
图7是本公开的密封组件的透视图，其中该密封组件的指状件处于打开位置中；并且
图8是本公开的密封组件的前视图，其中该密封组件的指状件处于打开位置中。
具体实施方式
现在参考图1，示出可缩进器具10。可缩进器具10包括本体12和鼻部14，其中该鼻部被置于本体12的第一端部处。例如，如在图1中所示，按钮或者致动器16被置于本体12的第二或者致动端部处，并且夹子18被置于本体12上。更加具体地，可以采用为人熟知的敲击式致动系统，该系统包括具有朝向致动端部延伸的轴杆的插塞，和置于该轴杆上的冲杆(plunger)。弹簧被置于该冲杆与该致动器或者按钮16之间。当被联接到一起时，该插塞、冲杆、弹簧和致动器或者按钮16提供为人熟知的敲击式致动系统。如已知的那样，通过反复地压下该致动器，该致动系统交替地将涂覆器元件例如笔尖置于缩进位置中和伸出或者涂覆位置(例如书写位置)中。除了敲击式致动系统，能够采用其它类型的致动系统。例如也能够使用如在美国专利公开No.2006-0216103A1中所示的侧部按钮致动系统，该公开通过引用而被合并。在该实例中，本公开的致动器已被侧部致动器替代，该侧部致动器穿过书写用具或器具的本体的侧壁中的狭槽延伸。
现在参考图2和3，可缩进器具10包括内部器具组件20(图2)。内部器具组件20包括涂覆器元件组件22，涂覆器元件组件22在该实施例中包括笔尖24和笔尖适配器26、管子28和储液器保持器30。密封组件32被联接到内部器具组件20并且包括基部34、指状件36和套筒38。当处于缩进位置中时，本体12容纳涂覆器元件组件22和密封组件32这两者(见图5)。因为涂覆器元件组件22被关联到密封组件32，则涂覆器元件组件22和密封组件32同时地伸出和缩进。
现在参考图4，示出可缩进器具10的内部部件。密封组件32被联接到内部器具组件20(图2)，例如涂覆器元件组件22、管子28和储液器保持器30。储液器保持器30提供用于存储流体(例如墨水)的装置，并且管子28保持涂覆元件24(例如笔尖)，并且将流体从储液器保持器30转移到涂覆器元件24。还示出弹簧40。如本领域技术人员熟知的那样，对本体12上的按钮16进行的致动引起储液器保持器30、涂覆器元件24、管子28和涂覆器元件适配器26以被直接关联的方式伸出。
虽然大体上在本文中示出可缩进器具10的一个实施例，大体上能够利用在Brand等人的美国专利No.6,964,534(′534专利)中所示构造中的任何一种来构造可缩进器具10，该′534专利的说明通过引用而被本文合并。换言之，密封组件32如在下面详细描述的那样能够如本领域技术人员将会看到的那样仅加以微小修改地结合到如′534专利所示的任何一种书写用具实施例内。据此，如本领域技术人员充分理解地那样，密封组件32能够被与纤维性笔尖相组合地使用，该纤维性笔尖允许流体墨水通过在多孔储液器中形成的毛细管流动。另外，密封组件32能够被与设计成自由墨水书写用具(包括使用多孔缓冲器系统的那些)的书写用具相组合地使用，其中该储液器是其中包含有流体墨水的空间。此外，密封组件32能够与其它的常规圆珠笔相组合地使用。
参考图5和6，通过使用结合于管子28以及基部34这两者上的干涉凸缘结构，也将密封组件32的基部34、指状件36和套筒38结合到这种伸出内。更加具体地，如在图5中所示，管子28包括凸缘42，并且基部34也包括凸缘44。如在图5中所示，在标记器起初地伸出时，干涉凸缘42、44相接合。
密封组件32还可以包括置于该组件上的与涂覆器元件24相对的端部处的另外的密封，用于针对大气将密封组件32的后部密封。例如，可以利用置于管子28的外壁和基部34的内壁之一或这两者上的密封条提供该端部密封。
当处于缩进状态中时，套筒38物理地约束指状件36并且还提供承座。具体地，在套筒38的内壁与指状件36的外表面之间的干涉导致将指状件36靠到彼此上以密封涂覆器元件24与环境隔开。
当伸出开始时，密封组件32被关闭直至基部34的干涉凸缘44接触到套筒38(图6)，并且管子28和基部34上的干涉凸缘42、44受压制。然后密封组件的指状件36开始打开并且伸出继续进行，直至在鼻部14上的前向限位器48与受约束套筒38的相应的前向限位器50相接合，由此约束了基部34和指状件36的伸出。此时，指状件36被打开，从而允许涂覆器元件24例如笔尖完全伸出鼻部14并且进入涂覆位置中。在这个过程期间，密封组件32无任何密封结构接触着涂覆器元件24以从涂覆器元件24转移流体，由此消除了可能发生的密封退化。
为了将涂覆器元件24缩回到本体12中，在基部上的干涉凸缘44与管子28的干涉凸缘42接合，这是由致动机构的缩进作用力(例如弹簧作用力或者拉伸)引起的。回想到虽然当涂覆器元件24处于完全缩进位置中时基部上的干涉凸缘44与管子28的干涉凸缘42相接合(见，例如，图5)，但是在伸出期间管子28的干涉凸缘42压制着基部的干涉凸缘44(见例如图6)。因此，当涂覆器元件24处于完全伸出位置中时，管子28的干涉凸缘42被置于密封组件32的指状件36内或者恰好紧邻密封组件32的指状件36(图6)。这样，当缩进开始时，涂覆器元件组件22开始移回到本体12内并且缩进继续进行直至套筒38的限位器50接合本体12上的限位器54(见图5)，从而使得指状件36完成围绕涂覆器元件24的关闭。换言之，指状件36被紧贴着靠近彼此以形成可靠的和可重复的密封。另外，当限位器50接合限位器54时，凸缘42、44相接合并被定位用于下一伸出循环。
利用这种设计组件，密封组件32从外部环境可靠地并且一致地密封该器具的涂覆器元件24以防止书写器具的涂覆器元件24干透。而且，不象现在例如用于标记器等的、目前的阀组件人工组装方法，上述用于可缩进器具10的密封组件32的组装方法可以被结合于高速组装过程中而无需大量的人工组装工作。
例如，如在图7和8中所示，密封组件32可以是筒夹或者筒夹式阀组件。例如，筒夹式阀组件32a包括基部34a、指状件36a和套筒38a。
此外，密封组件32的密封结构例如指状件36可以由各种材料(例如也被称作TPE的热塑性弹性体)形成。热塑性弹性体是这样一种材料，它既是热塑性体(即它能够被熔化和冷却至相同状态)又是弹性体(即橡胶体)。大多数弹性体是热固性体；相反，热塑性弹性体例如通过注射模制而相对易于在制造过程中使用。因为它们能够被熔化和再利用，不象热固性体那样，热塑性弹性体具有被回收的可能性。参看：http://en.wikipedia.org/wiki/Thermoplasticelastomer；还参看：http://www.pslc.ws/mactest/tpe.htm。TPE包括还被称作TPU的热塑性聚氨酯橡胶。例如可从Ohio州Akron城的高级弹性体系统有限公司(Advanced Elastomer Systems，L.P.)获得各种TPE产品，例如
Figure G2007800507387D00071
产品。
可以利用热塑性聚合物形成密封组件32和可缩进器具10的其它模制部件。如在这里所使用地，热塑性聚合物通常包括当被暴露于热量时软化并且当被冷却至室温时恢复它们的初始状态的合成高聚合物。更加具体地，热塑性聚合物包括聚氯乙烯、尼龙、丙烯/α-烯烃共聚物、聚乙烯、乙烯/α-烯烃共聚物、聚亚安酯预聚物、聚苯乙烯例如苯乙烯/乙烯和氢化丁苯嵌段共聚物、聚丙烯、纤维素树脂和丙烯酸树脂。
虽然根据本公开的教导在这里已经说明了特定的无帽式可缩进器具，但是本专利的涵盖范围不限于此。相反，本专利涵盖适当地属于可容许的等价形式的范围内的本公开教导的所有的实施例。另外，如本领域技术人员可以理解地，具有上述密封组件32的可缩进器具可以在书写器具例如荧光笔、标记器、毡尖笔、圆珠笔等。除了书写器具，密封组件32也能够被应用于各种其它可缩进器具包括漆刷涂覆器、修正液涂覆器、化妆品涂覆器例如指甲油和眉毛油涂覆器、香水涂覆器和除臭剂涂覆器。

Claims (20)

1.一种用于具有涂覆器元件的可缩进器具的密封组件，所述密封组件包括：
基部；
被附接到基部的至少两个指状件；和
部分地围绕着基部的可缩进/可伸出套筒；
其中，当可缩进器具处于缩进位置中时，可缩进/可伸出套筒约束着指状件从而使得指状件处于完全关闭状态中并且密封着涂覆器元件，并且基部相对于可缩进/可伸出套筒的伸出允许指状件打开，由此暴露出涂覆器元件。
2.根据权利要求1的密封组件，其中，密封组件被关联到可缩进器具的涂覆器元件组件，从而允许密封组件和涂覆器元件组件同时伸出。
3.根据权利要求1的密封组件，其中，基部包括凸缘。
4.根据权利要求3的密封组件，其中，在缩进位置中，基部的凸缘与置于所述可缩进器具的管子上的凸缘相接合。
5.根据权利要求1的密封组件，其还包括置于组件上与涂覆器元件相对的端部密封，以用于密封该基部。
6.根据权利要求1的密封组件，其中，套筒为处于缩进位置中的指状件提供承座。
7.根据权利要求1的密封组件，其中，在涂覆器元件缩进期间，置于套筒上的一组限位器与置于器具的本体上的一组限位器接合，由此允许指状件围绕涂覆器元件关闭并且密封该涂覆器元件。
8.根据权利要求1的密封组件，其中，密封组件是筒夹阀门或者筒夹式阀组件之一。
9.根据权利要求1的密封组件，其中，可缩进器具是书写器具、漆刷涂覆器、修正液涂覆器、化妆品涂覆器、香水涂覆器和除臭剂涂覆器之一。
10.根据权利要求9的密封组件，其中，书写器具是荧光笔、标记器、毡尖笔和圆珠笔之一。
11.根据权利要求9的密封组件，其中，化妆品涂覆器是指甲油或者眉毛油涂覆器之一。
12.一种可缩进书写器具，包括：
本体和置于本体的第一端部处的鼻部；
被置于本体内并且包括笔尖的内部书写组件；和
被联接到内部书写组件的密封组件，该密封组件包括基部，被附接到基部的至少两个指状件，和部分地围绕着基部的可缩进/可伸出套筒；其中，当可缩进书写器具处于缩进位置中时，可缩进/可伸出套筒约束着指状件，从而指状件处于完全关闭状态中并且密封该笔尖，并且基部相对于可缩进/可伸出套筒的伸出允许指状件打开，由此暴露出笔尖。
13.根据权利要求12的可缩进书写器具，其中，内部书写组件还包括笔尖适配器，用于保持墨水的储液器保持器，和用于将墨水从储液器保持器转移到笔尖的管子。
14.根据权利要求13的可缩进书写器具，其中，基部包括凸缘，并且管子包括凸缘，从而基部凸缘和管子凸缘在缩进位置中相接合。
15.根据权利要求12的可缩进书写器具，其中，密封组件还包括置于组件上与笔尖相对的端部密封，以用于密封该基部。
16.根据权利要求12的可缩进书写器具，其中，在笔尖缩进期间，置于套筒上的一组限位器与置于本体上的一组限位器接合，由此允许指状件围绕涂覆器元件关闭并且密封该涂覆器元件。
17.根据权利要求12的可缩进书写器具，其中，密封组件是筒夹或者筒夹式阀组件之一。
18.一种可缩进器具，包括：
本体和置于本体的第一端部处的鼻部；
被置于本体内并且包括涂覆器元件的内部组件；和
被联接到内部组件的密封组件，该密封组件包括基部、被联结到基部的至少两个指状件，和部分地围绕着基部的可缩进/可伸出套筒；
其中，当可缩进器具处于缩进位置中时，可缩进/可伸出套筒约束着指状件从而指状件处于完全关闭状态中并且密封该涂覆器元件，并且基部相对于可缩进/可伸出套筒的伸出允许指状件打开，由此暴露出涂覆器元件。
19.一种用于具有涂覆器元件的可缩进器具的密封组件，所述密封组件包括：
基部；
被附接到基部的至少两个指状件；和
部分地围绕着基部的套筒；
其中，当可缩进器具处于缩进位置中时，套筒约束着指状件从而使得指状件处于完全关闭状态中并且密封着涂覆器元件，并且基部相对于套筒的伸出允许指状件打开，由此暴露出涂覆器元件，
且其中，基部和指状件的伸出继续进行，直至器具的鼻部的限位器与套筒的限位器接合，由此约束基部和指状件的伸出并且允许涂覆器元件完全伸出可缩进器具以外并且进入涂覆位置中。
20.一种可缩进书写器具，包括：
本体和置于本体的第一端部处的鼻部；
被置于本体内并且包括笔尖的内部书写组件；和
被联接到内部书写组件的密封组件，该密封组件包括基部，被附接到基部的至少两个指状件，和部分地围绕着基部的套筒；
其中，当可缩进书写器具处于缩进位置中时，套筒约束着指状件，从而指状件处于完全关闭状态中并且密封该笔尖，并且基部相对于套筒的伸出允许指状件打开，由此暴露出笔尖。
且其中，基部和指状件的伸出继续进行，直至鼻部的前向限位器与套筒的前向限位器接合，由此约束该基部和该指状件的伸出并且允许涂覆器元件完全地伸出本体以外并且进入书写位置中。
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JP4955072B2 (ja) 2012-06-20
AU2007345563B2 (en) 2012-08-02
US20090142124A1 (en) 2009-06-04
AU2007345563A1 (en) 2008-08-07
CN101631682A (zh) 2010-01-20
GB0909117D0 (en) 2009-07-01
US7775734B2 (en) 2010-08-17
US7488130B2 (en) 2009-02-10
TW200836941A (en) 2008-09-16
WO2008094376A1 (en) 2008-08-07
US20080187389A1 (en) 2008-08-07

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