CN101484741B - 环形管状护套及制造这种护套的装置 - Google Patents
环形管状护套及制造这种护套的装置 Download PDFInfo
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Abstract
环形管状护套,包括两个开口壳(33、37),称为外壳(33)和内壳(37),它们具有相同的直径(D),其中之一的外壳(33)具有小于直径(D)的开口(E1),从而借助于弹性变形以闭合状态咬合在内壳(37)之上,在该咬合过程中,外壳(33)的开口(E1)经受拉伸变形直至其通过对应于内壳(37)的直径(D)的点,超过该点,返回不拉伸状态。在本发明中,该两壳(33、37)连接到铰链(17),以该铰链(17)为轴旋转咬合,小于直径(D)的外壳(33)的开口(E1)从该铰链(17)伸出到壳的对面边缘(34)。
Description
技术领域
本发明涉及一种环形管状保护护套,特别是包括两个开口壳,称为内壳和外壳,它们具有相同的直径,其中之一的外壳具有小于直径的开口,因此靠弹性变形在封闭状态咬合于内壳之上。
背景技术
我们应记得在汽车中使用的电缆束通常都是由多股导线绞合而形成圆型横截面。一旦形成这些绞合线,电缆束在固定到车辆的不同部件如发动机和车体之前要以各种保护材料捆扎。
环形管状护套就是汽车工业中通常使用的导线束保护类型之一。环形管状护套通过挤压管材模制成型为一连串的圈而形成,是常规地从模压塑料材料如聚丙烯、聚酰胺或聚酯生产出的。这些护套在维持高水平的挠性使得所保护的电缆易于生产和包装的同时提供有效的耐磨损和抗破碎性能。但是,将电缆束穿入环形护套中很困难,特别是穿过所述护套长的部分。这就是开口环形护套经常被使用的原因,即在生产过程的末尾将护套沿纵向直线切开。这使得随后导线和电缆可直接进入护套的任意部分。
开口环形护套可能包含或多或少复杂的封闭系统以防止导线在易于再打开的开口部位从管中脱离。这些闭合系统被发现在曲率半径小的部位相对低效,或使护套变得过于刚性。这种类型的护套的一个实例见文献EP-A-860921。
开口环形护套也可以在已经定位到电缆束上时用胶带完全封闭,这样就有效地锁定了开口,但是需要安装电缆人员增加额外的操作。
另一个解决办法,可以从例如EP-A-268869了解到,涉及使用一个由定位在环绕电缆束的第一开口壳和具有与第一开口壳同样直径但壁厚与第一开口壳不同的第二开口壳组成的组合装置。第二开口壳又称为外壳,其具有一个小于直径的开口,这样靠弹性变形咬合在第一开口壳之上,第一开口壳又称为内壳。在咬合过程中,外壳开口承受抗拉变形,直至通过对应于内壳直径的点,在这点以后,外壳开口回到不拉伸状态。在文献JP 2000-115942中,两壳用纵向带连接以弥补两个分离部分组成的组件复杂化的缺点,还涉及了沿保护材料的切割和敷设电缆人员的安装操作。
这两个文献披露的解决方法借助于外壳的开口刚刚返回到不拉伸状态使得环形管状护套保持封闭状态,换言之,不需要其它锁定措施保持两壳在封闭状态。但是,这个解决方法需要相对高水平的力使外壳咬合内壳,因为内壳不但不使插入过程容易进行而且以相反的趋势抵抗外壳开口的变形直至开口通过相对于直径的点。
发明内容
本发明的目的是根据上述总结修改已知的环形管状护套,减小两套咬合在封闭状态所需要的力,从而简化护套的使用。
为达到此目的,本发明涉及一种环形管状护套,其包括两个开口壳,称为外壳和内壳,它们具有相同的直径,其中之一的外壳具有一个小于直径的开口,从而借助于弹性变形以闭合状态咬合在内壳之上,其特征在于,两壳连接到一个铰链,以铰链为轴旋转咬合,小于直径的外壳开口从铰链伸出到壳的对面边缘。
内壳最好具有一个从铰链伸出到壳的对面边缘的开口,该开口小于外壳的开口,两壳在封闭状态以145°到155°之间的重叠角重叠,重叠角的大小决定于壳的两个对立边缘。
这样获得的环形护套防止电缆从套中脱离,特别是当电缆束在小曲率半径的部位延伸时,甚至当护套是100%充满时。这种护套是对于现有解决方法的有利替代,在简化零件编号管理、纵向切口和电缆敷设人员安装操作的同时保证电缆在小曲率半径部位的保护。
本发明进一步涉及一个生产根据本发明的环形管状护套的装置,包括一个带有挤压喷嘴的挤压机构,用来挤压出管子,一个配备有模具的模压机构,模具具有环形轮廓,沿同一配合平面成对布置,以将管子模压成为环形管壁,其特征在于,挤压喷嘴和两个成对的模具的环形轮廓在一个中心平面中向内弯曲使得挤压出的管子的两个管状部分具有相同的直径且在内弯曲线中心平面中互相连接,在两个管状部分分别同时地模压成为环形,两个成对的模具之一的环形轮廓在内弯曲线中心平面中具有一个非环形部分以产生一条非环形的纵向带状壁,一个切割纵向带状材料的切割工具布置在内弯曲线中心平面的两侧且面对非环形纵向带以形成相同直径的两个壳,两壳通过非环形纵向带互相连接,非环形纵向带形成铰链,通过切割纵向带状材料使两壳分别产生从铰链延伸到壳对面边缘的开口。
挤压喷嘴和两个成对模具的环形轮廓最好具有被刻为两个圆周的横截面,圆周的中心互相靠近以在中心平面中重叠,切割工具布置为相对于内弯曲线中心平面非对称。
附图说明
附图有助于更清楚地理解本发明,这些附图以非限定性的示例给出:
图1示出环形护套的挤压模制过程。
图2示出挤压喷嘴和模具的截面。
图3是向内弯曲曲线椭圆形模的正视图。
图4是一对模具的正视图。
图5是环形护套上铰链部位的放大视图。
图6示出切割环形护套的过程。
图7是这样切割出的环形护套的正视图。
图8示出与导线束配合的已切割环形护套。
图9示出外壳已经定位在内壳上的状态。
图10示出护套已经包住电缆束的状态。
图11是如此获得的护套的截面。
图12是根据本发明的护套的一个横截面,其中在外壳与内壳重叠部位的环形高度与此部位以外的环形高度相同。
图13a和13b是沿图12中的线A-A和线B-B分别在外壳与内壳重叠部位之内和之外的截面。
具体实施方式
根据本发明的一个实施例,参考图1、2和6,将热塑材料管子挤压成为向内弯曲的椭圆形,然后在管子上切割一条纵向带,就得到环形护套9。
参考图1、2和3,热塑材料如聚丙烯在挤压机构1中加热到大约190℃的最低挤压温度,然后通过一个挤压头3。装配在模具11中的挤压喷嘴12将材料挤压成为椭圆形管5的形状,沿着中心平面29向内弯曲。为了获得此效果,挤压喷嘴12在其中心平面29中具有内弯曲线14从而挤压出向内弯曲的椭圆管5,如第一管状部分51和第二管状部分52,两者具有相同的直径D且在内弯曲线中心平面29中相互连接。在模压机构7中,管5被吹向两个成对的模具47、49的壁和被冷却,模具47和49具有环形轮廓48的半壳形状13,向挤出方向延伸并沿配合平面13与沿管5的长度L互相面对,从而获得具有环形壁的管。两个成对的半壳47、49的环形轮廓48在所述半壳的中心平面29中也具有内弯曲线14以在两个管状部分51、52中同时模压出环形43、45。
在所示例中,挤压喷嘴12和两个成对的模具47、49的环形轮廓48具有被刻为两个圆周的横截面,其圆心O1、O2的位置互相接近,使两个圆周在它们的中心平面29处有重叠。
参考图4和5,模压出管5的每对半壳形状13的模具49的环形轮廓48在内弯曲线中心平面29处具有平坦区15。
由于有此平坦区15,就可以模压出具有非环形纵向带17的管5,非环形纵向带17的厚度21和宽度19使其保持充分的灵活性以靠塑性变形而作为铰链,同时保证护套9不会变得过分僵硬。作为实例,直径为23mm的环形管,其厚度21为0.4mm,宽度19为0.45mm。
参考图6,环形护套9由一个移送系统41向两个切割刀片25传送,以切割和除掉在形成铰链的非环形纵向带17对面的材料纵向带23。切割刀片25可以由一个旋转刀片系统更换。
参考图7,从平坦区17对面的壁上去除材料带,结果在向内弯曲的椭圆管5的第一和第二管状部分51和52形成两个开口壳33、37。这两个壳,称为外壳33和内壳37,因而具有相同的直径D和由形成铰链的非环形纵向带17连接。外壳33具有小于直径D的开口E1以便以铰链17为轴旋转咬合在内壳37上。外壳33的开口E1从铰链17延伸到由切除材料带23形成的壳对面边缘34。以铰链17为轴旋转两壳33、37使外壳在内壳上滑动,内壳同时在外壳下滑动。外壳33的开口E1的弹性变形减小直到它达到相应于内壳37直径D的点,这样靠咬合关闭护套就更加容易。
切割最好偏离相对于内弯曲线中心平面29的中心进行,也就是说切割工具25关于内弯曲线中心平面29非对称布置,以使内壳中形成的开口E2小于外壳33中形成的开口E1。如同外壳33的开口E1,内壳37的开口E2从铰链17延伸到由切除材料带23形成的壳对面边缘38。这种安排进一步简化了两壳以铰链17为轴相对旋转进入关闭状态。作为实例,直径D为23mm的环形管,内弯曲线中心平面29与外壳33的边缘34之间的距离27为9mm,内弯曲线中心平面29与内壳37的边缘38之间的距离31为2.5mm。距离27足够使被保护的电缆束35容易插入,但不能过大以保证外壳覆盖内壳时护套保持关闭状态。
参考图8,由内壳37和外壳33构成的护套是这样装配的,由操作人员将其装设到受保护的电缆束上。
参考图9和10,外壳33以铰链17为轴旋转,结果靠由于撑开外壳33的开口E1而产生的弹性变形和由于压缩内壳37的开口E2而产生的弹性变形,使外壳33咬合在内壳37上。在闭合状态,外壳33的环45咬合在内壳37的环43上。
参考图11,外壳33与内壳37的重叠角39的大小取决于两壳在铰链17对面的边缘34、38。作为实施例,重叠角39在145°与155°之间,最好为150°。
参考图12和13,外壳33具有两个不同的环高H1和H2,以从同一直径D顶点到顶点测量,以形成与内壳37的厚度相等的收进41。外壳33具有沿着铰链17和收进41之间伸出的弧的环高H1。沿着收进41和在铰链17对面的边缘34之间伸出的并相应于两壳33、37的重叠角39的弧的环高是H2,H2小于H1。
沿着弧上有一个重叠,外壳33从内壳37的壁S的厚度上伸出的环高H2等于外壳33沿着没有重叠的弧上的环高H1。这种安排使得内壳37在铰链17对面的边缘38邻接收进41处没有向护套内部的凸起,以避免形成边刃摩擦或切割护套内的电缆束35。
为了产生不同的环高H1和H2,两个成对模具47、49具有两个环高的环形轮廓48,两环高从同一直径测量,与模压管5的两个管状部分51、52的直径D相对应,以获得所需的高度差,以与形成内壳37的两管状部分51和52之一的51的环壁43的厚度S相对应。
Claims (8)
1.一种环形管状护套,包括两开口壳(33、37),称为外开口壳(33)和内开口壳(37),它们具有相同的直径(D),其中之一的外开口壳(33)具有小于直径(D)的开口(E1),从而借助于弹性变形以闭合状态咬合在内开口壳(37)之上,在该咬合过程中,外开口壳(33)的开口(E1)经受拉伸变形直至其通过对应于内开口壳(37)的直径(D)的点,超过该点,返回到不拉伸状态,该环形管状护套的特征在于,该两开口壳(33、37)连接到形成铰链的非环形纵向带(17),以该非环形纵向带(17)为轴旋转咬合,小于直径(D)的外开口壳(33)的开口(E1)从该非环形纵向带(17)伸出到外开口壳的相对边缘(34)。
2.根据权利要求1所述的环形管状护套,其特征在于,所述内开口壳(37)具有从非环形纵向带(17)伸出到内开口壳(37)的相对边缘(38)的开口(E2),该开口(E2)小于外开口壳(33)的开口(E1)。
3.根据权利要求2所述的环形管状护套,其特征在于,所述两开口壳(33、37)在闭合状态以145°到155°之间的重叠角(39)重叠,该重叠角(39)的大小决定于壳的两个相对边缘(34、38)。
4.根据权利要求3所述的环形管状护套,其特征在于,所述外开口壳(33)具有两环高(H1、H2),该两环高(H1、H2)从直径(D)处测量,该两环高(H1、H2)的高度差等于内开口壳(37)的环形壁的厚度(S),从而形成与内开口壳(37)的与非环形纵向带(17)相对的相对边缘(38)邻接的收进(41)。
5.一种用于生产根据权利要求1至4所述的环形管状护套的装置,包括:带有挤压喷嘴(12)的挤压机构(1),用来挤压出管(5);配备有模具(47、49)的模压机构(7),该模具(47、49)中的每一个均具有环形型面(48),该模具(47、49)沿同一配合平面(13)成对布置,以将管(5)模压成具有环形壁(43、45)的管,该装置的特征在于,挤压喷嘴(12)和成对的两个模具(47、49)的环形型面(48)在中心平面(29)中具有内弯曲线(14),以将管(5)挤压成具有相同的直径(D)且在内弯曲线的中心平面(29)中互相连接的两个管状部分(51、52),在两个管状部分(51、52)上分别同时地模压环形壁(43、45),成对的两个模具之一(49)的环形型面(48)在内弯曲线的中心平面(29)中具有非环形部分(15)以产生壁的非环形纵向带(17),切割纵向带(23)材料的切割工具(25)布置在内弯曲线中心平面(29)的两侧且面对非环形纵向带(17)以形成具有相同直径(D)的两开口壳(33、37),该两开口壳(33、37)通过非环形纵向带(17)互相连接,通过切割纵向带(23)材料使两开口壳(33、37)分别产生从非环形纵向带(17)延伸到开口壳相对边缘(34、38)的开口(E1、E2)。
6.根据权利要求5所述的装置,其特征在于,挤压喷嘴(12)和成对的两个模具(47、49)的环形型面(48)具有被刻为两个圆周的横截面,该圆周的中心(O1、O2)互相靠近以在中心平面中形成重叠。
7.根据权利要求5或权利要求6所述的装置,其特征在于,切割工具(25)布置为相对于内弯曲线的中心平面(29)非对称。
8.根据权利要求5所述的装置,其特征在于,成对的两个模具(47、49)具有两环高的环形型面(48),该两环高从同一直径测量,并与管(5)的两个管状部分(51、52)的直径(D)相对应,成对的两个模具(47、49)具有所需的高度差以与形成两开口壳(33、37)中外开口壳(33)的两个管状部分(51、52)中的那个管状部分(51)的环形壁(43)的厚度(S)相对应。
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FR0606089 | 2006-07-05 | ||
FR0606089A FR2903475B1 (fr) | 2006-07-05 | 2006-07-05 | Gaine tubulaire annelee de protection comprenant une charniere et dispositif pour fabriquer une telle gaine |
PCT/EP2007/005937 WO2008003485A1 (fr) | 2006-07-05 | 2007-07-05 | Gaine tubulaire annelee et dispositif pour fabriquer une telle gaine |
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DE102006005720B3 (de) * | 2006-02-08 | 2007-05-16 | Wampfler Ag | Endklemme für eine Schleppleitung |
FR2935555B1 (fr) * | 2008-09-03 | 2010-10-08 | Delfingen Fr Anteuil S A | Gaine tubulaire annelee a protection contre l'abrasion et procede et installation de fabrication |
FR2935556B1 (fr) * | 2008-09-03 | 2010-10-08 | Delfingen Fr Anteuil S A | Gaine tubulaire annelee etanche et procede et installation de fabrication |
JP5798775B2 (ja) | 2011-04-04 | 2015-10-21 | 矢崎総業株式会社 | コルゲートチューブ |
GB2500669B (en) * | 2012-03-29 | 2016-03-30 | Icon Polymer Group | Hose for conveying fluid |
CN102832489A (zh) * | 2012-08-28 | 2012-12-19 | 中航光电科技股份有限公司 | 一种低损耗电连接器 |
JP6171244B2 (ja) * | 2013-12-27 | 2017-08-02 | 古河樹脂加工株式会社 | コルゲート管、ケーブル構造、コルゲート管の製造方法およびコルゲート管素材の製造方法 |
FR3017178B1 (fr) * | 2014-02-06 | 2016-09-02 | Delfingen Fr-Anteuil S A | Gaine tubulaire annelee comportant un moyen de serrage interieur |
DE102014108757A1 (de) * | 2014-06-23 | 2015-12-24 | Schlemmer Gmbh | Wellrohr aus Kunststoff zum Ummanteln von Leitungen sowie Verfahren zur Herstellung eines solchen Wellrohres |
FR3024922B1 (fr) * | 2014-08-13 | 2018-04-20 | Delfingen Fr Anteuil Sa | Gaine tubulaire annelee a bande longitudinale detachable |
DE102014116447A1 (de) * | 2014-11-11 | 2016-05-12 | Schlemmer Gmbh | Wellrohranordnung zur Aufnahme von Leitungen und Verfahren zur Herstellung einer solchen Wellrohranordnung |
DE102015112272B4 (de) * | 2015-07-27 | 2020-12-17 | Schlemmer Gmbh | Aufklappbarer Wellschlauch, Kabelbaum und Verfahren zum Herstellen eines derartigen aufklappbaren Wellschlauchs |
EP3125383B1 (de) | 2015-07-27 | 2019-10-30 | Schlemmer Gmbh | Aufklappbarer wellschlauch, kabelbaum und verfahren zum herstellen eines derartigen aufklappbaren wellschlauchs |
US10288197B2 (en) * | 2016-07-11 | 2019-05-14 | Benjamin Grossman | Conduit with latch system |
DE102016123040A1 (de) * | 2016-11-29 | 2018-05-30 | Schlemmer Gmbh | Aufklappbarer Wellschlauch und Kabelbaum |
DE102017105787B3 (de) * | 2017-03-17 | 2018-06-28 | Schlemmer Holding GmbH | Verbundschlauch |
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RU2436008C2 (ru) | 2011-12-10 |
US7891383B2 (en) | 2011-02-22 |
BRPI0713230B8 (pt) | 2018-12-11 |
EP2035735B1 (fr) | 2010-10-13 |
CN101484741A (zh) | 2009-07-15 |
US20090140105A1 (en) | 2009-06-04 |
FR2903475B1 (fr) | 2011-10-21 |
EP2035735A1 (fr) | 2009-03-18 |
WO2008003485A1 (fr) | 2008-01-10 |
BRPI0713230A2 (pt) | 2012-04-10 |
JP5198444B2 (ja) | 2013-05-15 |
WO2008003485A9 (fr) | 2009-02-26 |
JP2009542180A (ja) | 2009-11-26 |
EP2035735B2 (fr) | 2014-09-17 |
RU2008151294A (ru) | 2010-08-20 |
ATE484704T1 (de) | 2010-10-15 |
DE602007009837D1 (de) | 2010-11-25 |
FR2903475A1 (fr) | 2008-01-11 |
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