CN1319194A - 光纤容箱和托盘 - Google Patents

光纤容箱和托盘 Download PDF

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CN1319194A
CN1319194A CN99811103A CN99811103A CN1319194A CN 1319194 A CN1319194 A CN 1319194A CN 99811103 A CN99811103 A CN 99811103A CN 99811103 A CN99811103 A CN 99811103A CN 1319194 A CN1319194 A CN 1319194A
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optical fiber
pallet
tray substrate
spool
tank
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CN1154862C (zh
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W·P·赖特迈耶
C·M·克努森
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Commscope Connectivity LLC
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ADC Telecommunications Inc
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4453—Cassettes
    • G02B6/4454—Cassettes with splices
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4441—Boxes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4452—Distribution frames
    • G02B6/44526—Panels or rackmounts covering a whole width of the frame or rack
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4453—Cassettes
    • G02B6/4455—Cassettes characterised by the way of extraction or insertion of the cassette in the distribution frame, e.g. pivoting, sliding, rotating or gliding

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Abstract

一种光纤容箱,内部具有位于轴向开口两侧的、相互对准的引导件。一拼接托盘具有一平的托盘底板,该底板具有一与其相垂直的托盘轴线。底板外周边的尺寸为,使外周边与相互对准的容箱引导件中的一对形成滑动配合。无论托盘底板处于围绕托盘轴线的哪一个位置,托盘底板总是可以滑动地配合在对准的引导件中。在托盘底板上设置了一光纤引导通道,以便在托盘底板围绕托盘轴线转动时接纳一卷光纤。

Description

光纤容箱和托盘
Ⅰ．发明背景
1．发明领域
本发明涉及用于光纤通信的设备。更具体地说，本发明涉及一种用于容纳光缆的容箱和托盘。
2．对已有技术的描述
目前已经有很多种用于容纳光纤光缆的容箱。这样的容箱可以包括用于容纳多余长度光缆的结构，并能借助光缆来执行各种功能，其中包括将两段光缆接合起来的拼接功能。这样的设备是设计成能便于光缆有规律地布置。在一通信中心会有很多光缆，因而希望设备能将这些光缆组织起来，并希望能以一种有规律的方式来触及光缆。
这种光纤设备的例子包括在1995年5月30日对美国专利4,995,688重新授权的专利34,955。该专利描述了能在一共同的框架内互换的各种容箱。在这些容箱中的一个特别的实施例中，包括一用于储存多余长度光纤的容箱。34,955专利的图29～32中示出了这种容箱。该储存容箱包括多个滑动托盘，每个托盘均包含一用于接纳光纤的转动卷轴。使卷轴转动，就能将多余长度的光纤以有规律的方式储绕于卷轴，在卷绕时有一个弯曲半径，从而使光纤不会弯曲过头而影响其传输性能。光纤容箱的另一个例子是美国专利5,093,885。该容箱包含在一前面板上的若干个连接器。它还包含一可储存在容箱内的搁架上的拼接托盘。拼接托盘包含用于将两段光纤拼接起来的拼接保持器。还有，美国专利5,208,894描述了一种光纤拼接容箱，其具有多个容纳在容箱中的滑动抽屉。每个抽屉均包含一用于接纳多个拼接头的拼接保持器。每个托盘均包含用于储存与拼接头相联系的光缆的引导件。该容箱包括一侧室，该侧室可允许一束光纤连接至容箱内侧，从而最终将各光纤分配给容箱内的各个托盘。
本发明的目的在于，提供一种容箱，它能以改进的方式来保持光纤并容纳多余长度的光纤。
此外，本发明的另一个目的在于，提供一种具有在其内进行拼接功能的容箱。
Ⅱ．发明概要
本发明的一个方面包括一拼接托盘。该拼接托盘包括一大致平的托盘底板，该托盘底板具有一垂直于底板的托盘轴线。在托盘上设置有一光纤引导通道，以便托盘底板围绕托盘轴线转动时接纳一卷光纤。
根据本发明的一个较佳实施例，揭示了一种光纤容箱和光纤托盘。容箱包括限定了一内腔以及一位于容箱前部供进出该内腔的开口的各壁。容箱还包含设置在位于开口两侧的内腔中的、相互对准的引导件。一托盘底板具有一外周边，其尺寸为，使外周边的两个相对的部分可以与相互对准的成对容箱引导件中的一对滑动配合。当托盘底板处于围绕托盘轴线的多个转动位置中的任意一个位置上时，托盘可与容箱引导件滑动配合。
附图简要说明
图1是根据本发明的容箱的前视、俯视和右视立体图，其中一托盘被从容箱中取出，并且该托盘上没有盖子；
图2是图1所示容箱的俯视平面图，其中一顶壁被除去以暴露出被接纳在容箱中的一托盘；
图3是根据本发明第一实施例的托盘的俯视平面图，其中光缆卷绕在托盘上；
图4是图3所示托盘的分解视图，其中有一个盖子，但是没有光缆卷绕在托盘上；
图5是根据本发明第二实施例的托盘和分开的盖子的立体图，在该托盘上没有光纤；
图6是图5所示托盘的俯视平面图，其中盖子被除去，并示出了卷绕在该托盘上的光纤；以及
图7是图5所示托盘的仰视平面图，其中没有盖子，并且示出了卷绕在托盘上的光纤。
对较佳实施例的详细描述
现请参见各附图，其中相同的构件用相同的标号来表示，下面将描述本发明的第一实施例。
在图1和2中，容箱10具有多个壁，包括一顶壁12、一底壁11、侧壁13、14和一后壁15。前壁16可枢转地固定于底壁11，因而在枢转离开时形成一通向内腔20的轴向开口18，所述内腔20由壁11～15限定。在内腔中包含有多个容箱引导件22。这些容箱引导件22设置得靠近两侧壁13、14，但与两侧壁相互间隔。引导件22包括多个导轨，导轨具有从前壁16延伸至后壁15的导槽22a，各导槽22a相互平行，靠近侧壁14的导槽22a与靠近侧壁13的导槽22a沿水平方向相应地对准。如图所示，在相邻的容箱引导件22之间设有一间隙24，该间隙24延伸至轴向开口18。
侧壁13、14与引导件22之间的空间形成了侧箱室13a、14a。相邻引导件22之间的间隙24连通于侧箱室13a、14a。一保持夹26固定于侧壁14，以便保持并组织光缆束。
顶壁11和底壁12包括连通于内腔20的孔28，这样就使光缆束可以通过孔28进入内腔20，并分配至侧箱室13a、14a，接着再通过间隙24来分配。
在内腔20中设置了一个新颖的拼接托盘30，该托盘可与容箱引导件22的各导轨滑动配合。在图1和2所示的例子中，有四对相互对准的容箱引导件22。因此，容箱10可以保持四个拼接托盘30。应该理解，这是一个有代表性的例子，只要简单地调节侧壁13、14的高度，就可以在容箱10的内腔中设置更多或更少的导轨22，以便根据需要容纳更多或更少的拼接托盘30。
拼接托盘30包括一大致平的、平面圆形底板32。该托盘底板32的尺寸为适于在水平对准的引导件22之间延伸，从而可将托盘底板32接纳在水平对准的引导件22的导槽22a中。托盘底板32的中轴线X-X垂直于托盘底板32所在的平面。托盘底板32围绕轴线X-X转动。当托盘底板32处于其围绕轴线X-X转动的任何一个位置上时，托盘底板32被接纳在容箱引导件22的导槽22a中。
最好是如图3和4所示，托盘底板32并不具有形成精确圆形的外周边32a。相反，外周边32a是由多个平直的或直线的段相互结合而成的一个近似圆形的外周边。利用平直的侧边缘32a可以使被接纳在导槽22a中的托盘底板32的材料数量变大。因此，可以将托盘底板32的附加材料接纳在引导件22的导槽22a中，以便将拼接托盘30完全支承在引导件22中。希望托盘底板32的尺寸为，即使当托盘底板32被可滑动地接纳在引导件22中时也可以自由地转动。然而，作为一种变化型设计，可以将托盘底板32设计这样，即，使沿直径方向相对的平直部分32a的间隔距离大致等于相对引导件22之间的间隔距离，因此，当托盘底板32被可滑动地接纳在引导件22中时，平直部分32a可以防止托盘30在导槽22a中转动。然而，出于下述原因，这并不是本发明的较佳实施方式。
在托盘底板32上设置了一卷轴34。该卷轴34包括一形成卷轴外表面的圆柱形壁部分，该部分限定了一从外周边32a向内延伸的第一纤维引导通道。卷轴34包括若干个从卷轴34的上边缘径向向外突伸的保持夹36。在下文中将会述及，各保持夹36可将光缆固定在第一纤维引导通道内。卷轴34的圆柱轴线相对于托盘轴线X-X同轴。
在位于卷轴34内侧的托盘底板32上设置有拼接保持器38。拼接保持器38在轴线X-X两侧的径向相对的位置上。在卷轴34的内侧还设置有光缆路导件40。
如图所示，卷轴34并不是一个完整的圆柱形，它只是一个圆柱形壁的几个部分，因而形成有若干个穿过卷轴34的间隙34a。这些间隙与光缆路导件40一起限定了第二光纤引导通道，藉以将光纤从第一光纤引导通道引导至卷轴34的内侧，并使各光纤到达拼接保持器38。
当把两根光纤拼接起来时，希望这两根光纤以光学对准的方式相互面对。在所有光缆都沿相同的方向(例如图1中箭头A所示的顺时针方向)卷绕于卷轴的情况下，必须使一对光纤之一重新对准并反向，从而便于对准一与之相配的光纤。内侧的光缆路导件40可允许一光纤在卷轴34内侧反向，以便与一相配的光纤精确地对准。
在每个间隙34a处设置有多个系固夹42。这些系固夹42可供一系固机构(例如一细绳、带子、粗线等)附连于其上并围绕光纤扎紧。
借助所述的构造，可以使光缆(如图1中的光缆50)从孔28进入容箱10的内腔20。光缆50进入侧箱室13a、14a。在把拼接托盘30从容箱10中取出的情况下，可以对光缆50进行修整，以暴露出每股光缆50中的多根光纤52、52a。光缆50的未被修整的端部可以固定于如前所述的系固夹42。
各光纤52通过间隙34a进入卷轴34内侧，并经过光缆路导件40，从而使多根光纤52中的一根沿着某个方向通至拼接保持器38，而另一根相配的光纤则反向地通过光缆路导件40，沿着与光纤52相对且对准的方向到达拼接保持器38。因此，光纤52、52a可以借助被保持在拼接保持器38(与传统的一样)中的拼接头而被拼接起来。光纤路导件40可防止光纤52、52a多余的弯曲。
在完成了所有拼接之后，托盘30围绕其轴线X-X转动。这种转动的结果是，光缆50在卷轴34的第一光纤引导通道中被卷绕到卷轴34上。当光缆50被卷绕到卷轴34上时，托盘30到达引导件22。当托盘30到达引导件22时，托盘底板32滑入对准的导槽22a，使托盘底板32滑配地接纳在引导件22中。在该较佳实施例中，托盘底板32可围绕其轴线X-X转动，即使当托盘底板32滑配地接纳在引导件22中时也是如此。因此，光缆50可以通过各引导件22之间间隙24，托盘30可以在进入容箱时转动，从而将光缆50连续地卷绕到卷轴34上，直到托盘底板被完全接纳到容箱10的内腔20中。在此点，可以将容箱10的前面板16枢转至一闭合位置，以防止对储存在容箱10内侧的光缆和其它元件造成意外的损坏。
在光纤52、52a被引导并最终位于卷轴34内侧时，可以将一盖子44(图4)盖到卷轴34上，以保护卷轴34内侧的光纤和拼接头。在光缆被卷绕到拼接托盘30上时，保持夹36可保持光缆50，使其不会意外地从卷轴34上脱落。卷轴34和光缆路导件40总是能防止光缆和光纤的过度弯曲。
图5至7示出了拼接托盘30的一个变化型实施例。该第二实施例的拼接托盘30’中与拼接托盘30的功能相同的构件添加一“’”来表示，以区分这两个实施例。
拼接托盘30’包括一圆形底板32’，在其外周边32a’上具有若干个平直部分，这样就使托盘底板32’既能围绕其垂直轴线转动，也能在容箱10的引导件22中滑动。
以卷轴34’的形式出现的第一光纤引导通道形成在底板32’上。该卷轴34’包括一平行并间隔于底板32’所在平面的平台35’。平台35’的上表面包含拼接保持器38’。卷轴34’中的间隙34a’可允许光纤从卷轴进入位于卷轴34’内侧的、包含有拼接保持器38’的平台35’的表面上方。在平台35’上形成有若干个开口37’，藉以使各光纤从平台35’的上表面到达平台35’的下表面。平台35’的下表面包含相互间隔的光缆路导件40’，这些路导件是以带有保持夹42’的卷轴的形式出现的。设置了一盖子44’，以便可释放地附连于平台35’的上表面而覆盖各光纤和拼接保持器38’。通过对这种变化型拼接托盘30’的描述，应该理解，各光缆50可以以与光缆50附连于卷轴34相同的方式(如图3所示的实施例)在卷轴34’的外表面上被固定和引导。来自于光缆的各光纤通过间隙34a进入位于卷轴34’内侧的平台35’的上表面上方。可以将各光纤中选定的那些光纤52’直接引导至拼接保持器38’。
当希望使光纤52a’反向而与拼接保持器38’上的光纤52’相配时，可以使光纤52a’通过开口37’进入平台35’的底侧。随后，光纤52a’围绕相对的卷轴40’，以“S”形的路径通过而反向，随后通过开口37’重新回到平台35’的上表面，这样就可以使光纤52a’对准拼接保持器38’中的光纤52’并相互拼接。
应该理解，图5至7所示实施例的结构与图3和4所示结构的区别在于，可以使光纤反向前进的光缆路导件40’设置在平台35’的底面上，而图3和4中使光纤反向前进的功能则发生在拼接托盘30的与拼接保持器38相同的层面上。
以上对本发明的详细描述已经说明了怎样以一种较佳的方式来实现本发明的目的。熟悉本领域的普通技术人员可以作出的改性和等同的变化应该落入由所附权利要求书所限定的保护范围内。

Claims (29)

1．一种光纤拼接托盘，包括：
一大致平的托盘底板，该底板具有一与其相垂直的托盘轴线，并具有一大致为圆形的外周边；
一设置在托盘底板上的第一光纤引导通道，用以在托盘底板围绕托盘轴线转动时接纳一卷光纤，其中第一光纤引导通道是设置在托盘底板上的卷轴，其尺寸为从外周边内缩，并具有一与托盘轴线相重合的卷轴轴线，其中卷轴包括一圆柱形壁的至少一部分，该圆柱形壁具有一与所述托盘轴线相重合的圆柱轴线，所述圆柱形壁的至少一部分固定于托盘底板并从托盘外边缘向内间隔，卷轴还包括在圆柱形壁的与托盘底板相对的那一侧上并沿径向向外延伸的第一多个保持夹；
一固定于托盘底板、从第一光纤引导通道径向向内的第一光纤拼接保持器，第一光纤引导通道限定了一用于使光纤从第一光纤引导通道到光纤拼接保持器的光纤通道，其中光纤拼接保持器固定于托盘底板的第一侧；托盘底板的另一个相对的第二侧具有光纤路导件和穿透托盘底板藉以使光纤从托盘底板的第一侧至第二侧的若干个开口，其中光纤路导件适于使一光纤的卷绕方向逆转。
2．如权利要求1所述的光纤托盘，其特征在于，所述光纤路导件包括在托盘底板第二侧上的两个相互间隔的副卷轴。
3．如权利要求1所述的光纤托盘，其特征在于，还包括在圆柱形壁的与所述托盘底板相对的那一侧上并沿径向向内延伸的第二多个保持夹。
4．如权利要求1所述的光纤托盘，其特征在于，所述外周边限定了多个成对且平行的平直部分，这些平直部分形成了所述大致圆形的外周边。
5．一种用于容箱的光纤托盘，所述容箱的各壁限定了一内腔以及一供进出该内腔的孔，该容箱还具有设置在所述内腔中的位于所述开口两侧的、相互对准的容箱引导件，所述托盘包括：
一大致平的托盘底板，该底板具有一与其相垂直的托盘轴线；
所述底板具有一外周边，其尺寸为，当托盘底板处于围绕托盘轴线的多个转动位置中的任何一个位置上时，并且在托盘可从开口滑动进入容箱内侧的情况下，所述外周边的两个相对的部分可以与相互对准的成对容箱引导件中的一对滑动配合；
一设置在托盘底板上的第一光纤引导通道，用以在托盘底板围绕托盘轴线转动时接纳一卷光纤。
6．如权利要求5所述的光纤托盘，其特征在于，当所述托盘底板被可滑动地接纳于容箱引导件中时，托盘底板可围绕托盘轴线转动。
7．如权利要求5所述的光纤托盘，其特征在于，只有当所述托盘底板位于围绕所述托盘轴线并且相对于容箱引导件而言的多个分开的转动位置中的任何一个位置上时，托盘底板才能与对准的容箱引导件滑动配合。
8．如权利要求5所述的光纤托盘，其特征在于，所述托盘底板包括与容箱引导件相协配的部分，藉以防止当托盘底板与容箱引导件滑动配合时发生围绕托盘轴线的转动。
9．如权利要求8所述的光纤托盘，其特征在于，所述部分包括所述外周边的多个成对且平行的平直部分，在托盘底板上的沿直径方向相对的每一对平直部分的间隔距离大致等于所述对准的容箱引导件的间距。
10．如权利要求5所述的光纤托盘，其特征在于，所述第一光纤引导通道是一设置在托盘底板上的卷轴，其尺寸为从所述外周边内缩，并具有一与所述托盘轴线重合的卷轴轴线。
11．如权利要求10所述的光纤托盘，其特征在于，所述卷轴包括一圆柱形壁的至少若干部分，所述圆柱形壁具有一与所述托盘轴线重合的圆柱轴线，该圆柱壁的所述若干部分固定于托盘底板，并从托盘外周边向内间隔。
12．如权利要求11所述的光纤托盘，其特征在于，还包括在所述圆柱形壁的若干部分与所述托盘底板相对的那一侧上的若干保持夹。
13．如权利要求5所述的光纤托盘，其特征在于，还包括一光纤拼接保持器，该保持器固定于托盘底板，并在从第一光纤引导通道径向向内的位置上，所述第一光纤引导通道限定了一用于让光纤从第一光纤通道到光纤拼接保持器的光纤通道。
14．如权利要求13所述的光纤托盘，其特征在于，所述光纤保持器固定于一固定在托盘底板上的平台的第一侧；所述平台的另一个相对的第二侧具有光缆路导件和穿透平台藉以使光纤从平台的第一侧至第二侧的若干个开口。
15．如权利要求14所述的光纤托盘，其特征在于，所述光纤路导件适于使一光纤的卷绕方向逆转。
16．如权利要求15所述的光纤托盘，其特征在于，所述光纤路导件包括在平台第二侧上的两个相互间隔的副卷轴。
17．如权利要求13所述的光纤托盘，其特征在于，还包括一第二光纤引导通道，用以将光纤从第一光纤引导通道引向光纤拼接保持器。
18．如权利要求11所述的光纤托盘，其特征在于，还包括：
一第一光纤拼接保持器，该保持器固定于托盘底板，并位于从所述卷轴径向向内的位置上；
以及所述圆柱形壁的所述若干部分中的相对的两个部分限定了一用于使光纤从卷轴到第一光纤拼接保持器的光纤通道。
19．如权利要求18所述的光纤托盘，其特征在于，还包括用于将光纤从所述卷轴引向所述第一光纤拼接保持器的第二光纤通道。
20．如权利要求19所述的光纤托盘，其特征在于，还包括：
一第二光纤拼接保持器，该保持器固定于托盘底板，并位于从所述卷轴径向向内的位置上，其中第一和第二光纤拼接保持器设置在托盘轴线的相对的两侧；
所述第二光纤引导通道适于将光纤从所述卷轴引导至所述第一和第二光纤拼接保持器中的任何一个。
21．如权利要求19所述的光纤托盘，其特征在于，还包括一支架，用于固定一从所述卷轴到所述第二光纤引导通道的光纤。
22．如权利要求18所述的光纤托盘，其特征在于，还包括一可拆卸地连接于所述卷轴的盖子，藉以覆盖所述第一光纤拼接保持器。
23．一种用于容箱的光纤托盘，所述容箱的各壁限定了一内腔以及一供进出该内腔的孔，该容箱还具有设置在所述内腔中的位于所述开口两侧的、相互对准的容箱引导件，所述拼接托盘包括：
一大致平的托盘底板，该底板具有一与其相垂直的托盘轴线；所述底板具有一外周边，其尺寸为，无论托盘底板处于围绕托盘轴线的多个转动位置中的哪一个位置，并且在托盘可从开口滑动进入容箱内侧的情况下，所述外周边的两个相对的部分可以与相互对准的成对容箱引导件中的一对滑动配合；
一设置在托盘底板上的第一光纤拼接保持器，用以提供一供光纤拼接用的位置。
24．如权利要求23所述的光纤托盘，其特征在于，还包括：
一设置在托盘底板上的卷轴，其尺寸为从所述外周内缩，并具有一与所述托盘轴线重合的卷轴轴线；
所述卷轴具有若干个开口，以便使光纤从卷轴外侧进入卷轴内侧；
所述第一光纤拼接保持器位于所述卷轴的内侧。
25．如权利要求24所述的光纤托盘，其特征在于，还包括一第二光纤拼接保持器，该保持器固定于托盘底板，并位于从所述卷轴径向向内的位置，其中第一和第二光纤拼接保持器设置在所述托盘轴线的相对两侧。
26．一种光纤容箱和托盘的组合，包括：
一容箱，具有：
限定了一内腔以及一供进出该内腔的开口的各壁；
设置在位于所述开口两侧的内腔中的、相互对准的引导件；
一拼接托盘，具有：
一大致平的托盘底板，该底板具有一与其相垂直的托盘轴线；所述底板具有一外周边，其尺寸为，无论托盘底板处于围绕托盘轴线的多个转动位置中的哪一个位置，并且在托盘可从开口滑动进入容箱内侧的情况下，所述外周边的两个相对的部分可以与相互对准的成对容箱引导件滑动配合；
一设置在托盘底板上的第一光纤引导通道，藉以在所述托盘底板围绕托盘轴线转动时，可接纳一卷光纤。
27．如权利要求26所述的组合，其特征在于，所述容箱包括一用于使所述光缆通过的侧箱室。
28．如权利要求27所述的组合，其特征在于，所述容箱包括从所述侧箱室至所述内腔的内通道，以供所述光缆从侧箱室进入内腔。
29．如权利要求28所述的组合，其特征在于，所述容箱包括多个相互对准的引导件，所述内通道形成在相邻的引导件之间。
CNB998111031A 1998-09-21 1999-08-25 光纤容箱和托盘 Expired - Lifetime CN1154862C (zh)

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