CN101346501A - 乘客输送装置扶手滑动层的处理 - Google Patents

乘客输送装置扶手滑动层的处理 Download PDF

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CN101346501A
CN101346501A CNA2005800524171A CN200580052417A CN101346501A CN 101346501 A CN101346501 A CN 101346501A CN A2005800524171 A CNA2005800524171 A CN A2005800524171A CN 200580052417 A CN200580052417 A CN 200580052417A CN 101346501 A CN101346501 A CN 101346501A
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C·郭
J·M·米尔顿-博努瓦
J·P·韦森
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Otis Elevator Co
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Abstract

一种乘客输送装置扶手(30)包括滑动织物层(36),在所述滑动织物层的至少一侧(38)上面具有低摩擦涂层(40)。一个已披露的实例包括设置在所述滑动织物层(36)的一侧(38)的选定部分上面的低摩擦涂层(40)。另一个已披露的实例包括设置在所述滑动织物层(36)的两侧(38,39)上面的涂层。还描述了多种生产工艺技术。

Description

乘客输送装置扶手滑动层的处理
技术领域
本发明总体上涉及乘客输送装置。更具体地,本发明涉及应用在乘客输送装置扶手上面的滑动层。
背景技术
乘客输送装置如自动扶梯和自动人行道典型地包括用于在输送装置的相对端部处的不同层站之间运送乘客的移动的梯级或移动的传送带。扶手随所述梯级或传送带进行移动从而为站在乘客输送装置上面的乘客提供一个抓握表面以使他们自己稳定平衡。典型的扶手构造包括为乘客提供抓握表面的橡胶或热塑性材料本体。所述本体的下侧上面典型地涂覆有滑动织物,例如棉或聚酯。该滑动织物有利于扶手沿着导引装置进行滑动。
理想地,滑动织物层将会具有在滑动层与导引装置之间能够提供低摩擦系数的表面特征。常规的扶手驱动组件使将低摩擦滑动层结合到扶手上面的能力受到限制。常规的扶手驱动组件利用摩擦和压紧辊与扶手的两侧相接合,从而推动扶手与梯级或移动的传送带相一致地进行移动,从而使得扶手随站在乘客输送装置上面的乘客一起进行移动。如果所述滑动织物层过于光滑,那么就不能达到对扶手驱动机构与扶手之间的摩擦方面的要求。这样一种“摩擦对立”(例如在滑动层在导引装置上面滑动时对低摩擦系数的需求与在滑动层与驱动机构相接合时对高摩擦系数的需求)已经限制了对作为滑动织物层的织物的选择范围。
在选择滑动织物时的另一个考虑因素是确保在织物与用于形成扶手本体的材料之间形成良好的结合。
滑动织物层的磨损是对修理或更换乘客输送装置扶手的需求的主要贡献因素。需要的是一种能够减少滑动织物层上面的磨损量从而延长扶手寿命并且节省相关成本的经过改进的布置。本发明致力于满足这些需求。
发明内容
一种用作乘客输送装置扶手的至少一部分的典型制品包括滑动织物层,在所述滑动织物层的一侧的至少一部分上面具有低摩擦涂层。
在一个实例中,所述织物层的一侧的选定部分上面涂覆有利于沿着导引装置进行滑动的低摩擦涂层。所述织物层的一侧的其它部分上面未经涂覆从而有利于与驱动机构适当地接合。
另一实例包括设置在所述滑动织物层的两侧上面的涂层。一个实例中包括两种不同的涂层;一种涂层被选择用于实现低摩擦,而另一种涂层用于与用以形成扶手本体的材料形成良好地结合。
另一实例包括设置在所述滑动织物层的两侧上面的相同的涂层。
用于将低摩擦涂层施涂到所述滑动织物层的一侧的至少一部分上面的示例性的施涂技术包括在用于形成低摩擦涂层的材料上面进行刷涂、喷涂或滚压。另一实例包括将滑动织物层浸没在用于形成涂层的材料内。
在一个实例中,在将织物紧固到扶手本体上面之前施涂所述滑动织物层。在另一个实例中,在施涂低摩擦涂层之前将扶手与位于适当位置的滑动织物层组装在一起。
由下面对当前优选实施例的描述,本领域的技术人员对本发明的各种特征和优点会更加清楚。下面对伴有详细描述的附图作简要说明。
附图说明
图1示意性地示出了一个示例性的乘客输送装置,该乘客输送装置包括有根据本发明的一个实施例设计出的扶手;
图2是沿图1中的线A-A截取的剖视图;
图3示意性地示出了一个示例性的织物层;
图4示意性地示出了一个示例性的滑动织物层的另一个实施例;
图5是沿图1中的线A-A截取的另一个实施例的剖视图;
图6是从与图2和图5相同角度观察到的另一个实施例的剖视图;
图7示意性地示出了本发明的一个实施例中的将涂层施涂到扶手层上面的一种示例性方法;和
图8示意性地示出了另一种示例性方法。
具体实施方式
图1示出了一个示例性的乘客输送装置20。多个梯级22在层站24与26之间进行移动从而沿所需方向输送乘客。扶手30沿循着沿导引装置(图中未示出)的路径,从而为站在乘客输送装置20上面的乘客提供抓握表面。
图2示出了一个示例性的扶手构造,其中扶手30包括例如包含橡胶或热塑性材料的本体32。本体32形成了朝向沿着例如由站在乘客输送装置20上面的乘客进行抓握的方向的抓握表面34。扶手本体32上的一个相对的朝向内(如图中所示)的表面具有被紧固在适当位置处的滑动织物层36。当扶手按照已公知方式进行移动时,该滑动织物层36沿着常规的导引装置(图中未示出)进行滑动。
图3示出了滑动织物层36的一个示例性的实施例。在该实例中,滑动织物层36具有一个侧面38和一个相对朝向的侧面39。在一个实例中,滑动织物层36中包含棉。在另一个实例中,滑动织物层36中包含聚酯。
如图3中可见,示例性的滑动织物层36的一个侧面38具有被施加到所述一个侧面38的至少一部分上面的涂层40。该涂层40是在滑动织物层36与扶手导引装置之间产生较小摩擦系数的低摩擦涂层。
本发明的不同的示例性的实施例包括不同的用于形成低摩擦涂层40的材料。示例性的低摩擦材料是可固化的、热塑性的或基于溶剂的。示例性的涂层材料包括环氧树脂、含氟环氧树脂、聚酯、聚酰胺、聚氨酯和硅酮。在一些实例中选定的材料形成了具有坚固的外皮从而在扶手30的整个工作范围内呈现出不粘结的表面以有利于低摩擦的柔性涂层。一些示例性的涂层中包含降低摩擦的添加剂例如聚四氟乙烯、固体含氟聚合物、低蒸气压流体含氟聚合物、脂肪酸、脂肪酸的衍生物(包括但不限于硬脂酸酯、月桂酸酯或棕榈酸酯)、石墨或二硫化钼。在一个实例中,降低摩擦的添加剂分散在用于形成低摩擦涂层40的材料整体中。
图4示出了滑动织物层36的另一实施例,其中滑动织物层36具有上面涂覆有涂层40的一个侧面38和上面涂覆有另一涂层42的朝向相对的侧面39。如前面的实例,涂层40包括在滑动织物层36与扶手导引装置之间产生较小摩擦系数的低摩擦涂层和扶手将会在其上行进的导引装置。该实例中的涂层42包含一种被选定用以增强滑动织物层36与形成扶手30本体的材料之间的结合的不同材料。
在另一个实例中,涂层40和涂层42中包含相同的材料。在该实例中,选择能够在侧面38上提供低摩擦系数并且不会妨碍滑动织物层36与形成扶手本体的材料之间的结合的材料。在一些实例中,涂层42,即便是在侧面38上提供了低摩擦涂层,增强了将滑动织物层36结合到扶手本体上面的能力。
根据扶手的构造和在乘客输送装置工作过程中推进扶手的驱动机构,可以采用不同方式以将低摩擦涂层施加到滑动织物层36的一个侧面38上。
图5示出了扶手30的一个示例性的实施例,该扶手包括多个齿48,不要求压紧扶手的驱动机构啮合所述齿,从而使得驱动机构不依靠所述驱动机构与位于每个齿48的端部表面上面的滑动织物层36之间的摩擦。在这样一个实例中,低摩擦涂层40延伸跨过滑动织物层36的整个一个侧面38。在图5所示的实例中,低摩擦涂层40延伸跨过如图中所示的滑动织物层36的每一个部分的整个一个侧面38。
图6示意性地示出了另一个示例性的实施例,其中传统的扶手驱动机构依靠所述驱动机构与滑动织物层36之间的摩擦从而根据需要推进扶手30。在该实例中,施加低摩擦涂层40,从而形成沿着滑动织物层36的长度纵向进行延伸(例如进入到图纸中)的至少两条横向隔开的条带。一个侧面38的中央部分50保持未经涂覆从而被扶手驱动机构接合。具有低摩擦涂层40的涂覆部分将会在滑动织物层36与扶手导引装置之间提供更好的摩擦系数,而未经涂覆的部分50利于与所述驱动机构实现适当的摩擦接合。
图7示意性地示出了制造包括具有低摩擦涂层的滑动织物层的扶手组件的一种示例性方法。用于滑动织物层36的存料以自动方式移动通过涂层施涂站60。在该实例中,滑动织物层36在被紧固到扶手的剩余部分上面之前进行涂覆。在该实例中,涂层施涂站以多种方式中的一种方式施加涂层。对于具有涂覆有低摩擦涂层40的滑动织物层36的仅一个侧面的实施例而言,涂层施涂站60包括用于在低摩擦涂层材料上面进行刷涂、喷涂或滚压的适当的机械装置。在滑动织物层36的两个侧面都涂覆有相同的涂层材料的另一个实例中,织物层被浸没在用以形成低摩擦涂层的未经固化的材料浴中。
与施加涂层的技术无关,图7所示的实例中包括具有适当的热源、干燥器或以上二者用于使形成低摩擦涂层40的材料产生固化的固化站62。根据所选定的特定涂层材料,采用适当的固化技术以在低摩擦涂层材料与滑动织物层之间形成良好的粘接。在一些实例中进行固化的结果是:形成了带有坚固的不剥落的外皮的柔性涂层,所述柔性涂层提供了低摩擦涂层40与最终用于引导施加有滑动织物层36的扶手进行移动的导引装置之间的所需的摩擦系数。图7所示的实例中包括扶手组装站64,在扶手组装站处,经过涂覆的滑动织物层36被紧固到扶手的剩余部分上面。
在图8所示的实例中,在扶手组装站64中,在将低摩擦涂层40施加到滑动织物层36上面之前,滑动织物层36被紧固到扶手的剩余部分上面。在这样一种布置中,在施加涂层前滑动织物层36已被紧固到扶手30的本体32上面时,滑动织物层36的仅一个侧面将会被典型地涂覆。一个实例包括涂覆示例性滑动织物层36的侧面39,然后将滑动织物层36紧固到扶手本体上并且随后将低摩擦涂层40施加到滑动织物层36的一个侧面38上面。
在图8所示的实例中,在涂层施涂站70中施加低摩擦涂层40。在该实例中的用于施加涂层的刷涂或滚压技术具有以下优点:例如如果采用喷涂工艺的话,则不用必须遮盖住扶手上面不应进行涂覆的多个部分。一个实例中包括将低摩擦涂层材料40挤出到滑动织物层36上面。在一个实例中,当扶手本体材料被挤出从而使得在扶手组装站66与涂层施涂站70之间不存在物理差别时出现这种挤出,以上为便于进行讨论而单独示意性地示出。在该实例中,同时工作的机械装置的不同部分提供了所需的结果。
一旦涂层得到适当地施加,涂装站72使涂层40的材料发生固化并且完成扶手材料所要求的任何涂装。
与现有技术扶手设计相比,所披露的实例具有多个优点。利用低摩擦涂层40减小了当扶手沿着导引装置进行滑动时的摩擦系数。这样就延长了扶手的使用寿命。由于摩擦系数是影响扶手使用寿命的主要因素,因此利用本发明的一个示例性的实施例减小摩擦系数延长了使用寿命并且提供了明显的成本节约。所披露的实例的另一个优点在于:允许降低使扶手进行移动的功率消耗量。低摩擦系数允许使用更小的功率以使扶手根据需要进行移动。另一个优点在于:在滑动表面处热生成量更小,这样就对扶手提供了更好的温度控制并且可以允许在一些情况下使用成本更低的材料。
另一个优点包括降低了扶手导引装置的复杂度。许多常规的系统包括与中柱相关联的辊,从而减小位于中柱位置处的摩擦力。附加上这些辊则增大了乘客输送装置组装的复杂度和成本。利用低摩擦涂层40降低摩擦系数则允许去掉这些辊,而不存在任何不利效应,这样从材料和安装角度来看,节约了成本。
前面的描述是示例性的而非对本发明的限制。对本领域的技术人员而言对已公开实施例所作的各种变型和修改都是显而易见的,并不脱离本发明的精神。本发明所要求的保护范围仅由下面的权利要求书决定。

Claims (20)

1、一种用作乘客输送装置扶手的至少一部分的制品,包括:
滑动织物层,在所述滑动织物层的一侧的至少一部分上面具有低摩擦涂层。
2、根据权利要求1所述的制品,其中所述滑动织物层具有上面涂覆有低摩擦涂层的第一侧面和上面涂覆涂层的朝向相反的第二侧面。
3、根据权利要求2所述的制品,其中所述第二侧面上面的涂层与所述第一侧面上面的低摩擦涂层是相同的。
4、根据权利要求2所述的制品,其中所述第二侧面上面的涂层与所述第一侧面上面的低摩擦涂层是不相同的。
5、根据权利要求1所述的制品,其中所述低摩擦涂层中包含环氧树脂、含氟环氧树脂、聚酯、聚酰胺、聚氨酯或硅酮中的至少一种。
6、根据权利要求1所述的制品,其中所述低摩擦涂层中包含聚四氟乙烯、固体含氟聚合物、低蒸气压流体含氟聚合物、脂肪酸、脂肪酸的衍生物、石墨或二硫化钼中的至少一种。
7、根据权利要求1所述的制品,其中所述低摩擦涂层是柔性的且包括坚固的外皮。
8、根据权利要求1所述的制品,其中所述滑动织物层中包含棉或聚酯中的至少一种。
9、根据权利要求1所述的制品,其中所述低摩擦涂层中包括设置在一个侧面上面的沿横向隔开的被涂覆部分并且所述一个侧面上包括位于沿横向隔开的被涂覆部分之间的中央未涂覆部段。
10、一种制造乘客输送装置扶手的至少一部分的方法,所述方法包括以下步骤:
将低摩擦涂层施涂到滑动织物层的一侧的至少一部分上面。
11、根据权利要求10所述的方法,包括在低摩擦涂层上面进行刷涂、喷涂或滚压中的至少一种。
12、根据权利要求10所述的方法,包括将低摩擦涂层施涂到滑动织物层的整个一个侧面上面。
13、根据权利要求10所述的方法,包括在一个侧面上面形成低摩擦涂层的至少两个沿横向隔开的部分并且留出该一个侧面的中央部段未进行涂覆。
14、根据权利要求10所述的方法,包括将涂层施涂到滑动织物层的第二朝向相反的侧面上面。
15、根据权利要求14所述的方法,包括分别向所述一个侧面和所述第二侧面上面施涂不同的涂层。
16、根据权利要求14所述的方法,包括向所述一个侧面和所述第二侧面上面施涂相同的涂层。
17、根据权利要求16所述的方法,包括将滑动织物层浸没在用于形成低摩擦涂层的材料中。
18、根据权利要求10所述的方法,包括在将滑动织物紧固到扶手的本体部分上面之前施涂低摩擦涂层。
19、根据权利要求18所述的方法,包括在将滑动织物紧固到扶手的本体部分上面之后施涂低摩擦涂层。
20、根据权利要求18所述的方法,包括将低摩擦涂层挤出到滑动织物层的一个侧面上面。
CN2005800524171A 2005-12-28 2005-12-28 乘客输送装置扶手滑动层的处理 Expired - Fee Related CN101346501B (zh)

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