CN1094136A - 带编码装置的密封装配装置 - Google Patents

带编码装置的密封装配装置 Download PDF

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CN1094136A
CN1094136A CN94101102A CN94101102A CN1094136A CN 1094136 A CN1094136 A CN 1094136A CN 94101102 A CN94101102 A CN 94101102A CN 94101102 A CN94101102 A CN 94101102A CN 1094136 A CN1094136 A CN 1094136A
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assembly apparatus
sealing assembly
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sealing
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CN1071007C (zh
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克里斯蒂昂·弗朗塞·阿杰勒
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SNR BEARING CO
NTN SNR Roulements SA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
    • F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
    • F16C33/7883—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7859—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element
    • F16C33/7863—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element mounted to the inner race, e.g. a flinger to use centrifugal effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
    • F16C33/7873—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a single sealing ring of generally L-shaped cross-section
    • F16C33/7876—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a single sealing ring of generally L-shaped cross-section with sealing lips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
    • F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7896—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members with two or more discrete sealings arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/443—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sealing Of Bearings (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

在带编码装置的密封装配装置里，有一个径向盘 安装在旋转的支撑轴上。编码装置的外侧面有一个 固定在径向盘上的密封径向唇口。这个侧面很容易 与支撑物的侧面P取平。这个支撑物可能带有一个 装配在环形腔中的密封件。这个环形腔是由支撑物 的侧面P轴向限定的。

Description

本发明是关于带编码装置的密封装配装置。这种装置里，一个旋转园盘带有多极磁化编码装置，以便在传感器前产生一个移动的磁场。
发表的EP-A-495323号专利对密封件进行了描述。该密封件含有一个用磁性材料制作的或复盖的旋转导流板。
当传感装置工作时，需要一个强磁场，编码装置的尺寸应该增加。根据发表的FR-A-2660975号专利，旋转盘的里面朝着密封料，而盘的外面带有编码装置。这样一个密封件的轴向尺寸使它对事先确定了轴向尺寸的滚球轴承和滚针轴承就不能再密封了。
本发明是关于密封的滚球轴承和滚针轴承的，在这种密封轴承里，密封装置的轴向位置不受上面得到的滚球轴承和滚针轴承尺寸的影响。
本发明同样也涉及密封得到改善的滚球轴承和滚针轴承，当密封装置和上述轴承的固定和活动部件相连时，密封就得到改善。
本发明还涉及到予装配的密封装置。这种密封装置在软唇口处涂有密封料。密封装置中的编码装置很容易制作，只要敷上带有铁氧体微粒的弹胶物即可。
根据本发明，编码装置的外表面有密封接头并固定在带编码装置的旋转盘上。这个外表面很容易与支撑物侧面取平。这个支撑物可能带有一个安装在环形腔里的密封件。这个环形腔是由支撑物的侧面轴向限定的。
所制造的密封装置之优点是能够密封地安装在滚珠轴承上，不需要特殊的予备措施。
嵌在密封装置里的编码装置有足够的体积以使传感器易于读出磁场变化。
本发明的其它特点及优点，在您看了几个密封装置装配的例子后，就显而易见了。请参看附图：
-图1所示是一个带编码装置的密封装置安装在旋转轴上的径向剖面图。这个轴与固定的框架上附加的密封装置相接触。
-图2是图1密封装置的改型。
-图3是在轴承内外环之间用密封肋安装带有编码装置的密封装置之径向剖面图。
-图4是图3所示的装置的第一种改型。
-图5是图3所示装置的第二种改型。
-图6所示是密封装置的简化型式。
-图7是图6所示装配装置的改型。
图1和图2表示出旋转的支撑轴1载有与管径3相连的径向盘2。这个管径3装卡在轴1上。盘2的一面敷有磁性弹胶物，使之构成编码装置4。
盘2和它的管径3共同组成了限定在固定于支撑物6上的外框架5里的内框架。外框架5也有一个装卡在支撑物6上的装配轴颈7和一个与轴1的旋转轴径向相同的固定径向盘8。
固定径向盘8有一层用复制模浇铸的密封弹胶层10，该层包含有轴向唇口11和径向唇口11′，它们分别靠在盘2空白面和管颈3的外表面上。密封弹胶物层10的一端和装配管颈7相连，并有一个环形肋12镶嵌在支撑物6的锪窝里或支撑物6的斜边处。
根据本发明，编码装置4外侧面连有一个固定在盘2上的密封径向唇口13，该唇口13紧靠在轴1上。这个外侧面和支撑物6的侧面61的面P很容易取平。
有密封弹胶物层4和10的盘2和8安装在环形腔15内，此环形腔在轴向以面P为界。
根据图1所示的装配特点，由径向盘2和编码装置4构成的组件园周表面在径向上是由间隙16与弹胶层10隔开的。
此外，如图2所示，径向盘2和编码装置4的外表面可以装配在固定密封唇口17下面。此密封唇口是密封弹胶物10的伸出部分，它还与旋转的编码装置4接触。
另外，径向盘2和固定径向盘8限定环形腔19、29。在腔内充满带磁性的液体，这种液体由编码装置4的磁性维持在那里。这种液体同样也可以充填在间隙16里。由于这种充有铁氧体的液体存在，可以提高密封装置的密封性能。
径向盘2同样也可以用磁性材料制作，目的是确保编码装置4发出的磁通量和磁场的集中。
图3和图4是图1和图2所示的带有编码装置的密封装配装置的改型。图3和图4中的装配零件和部件的功能与图1和图2中的零部件功能是一样的，所以图3和图4中零部件的编号与图1和图2的是一致的。
图示的密封装置装在环形腔中，此腔限定在一个滚球轴承的两个支撑环之间，内旋转环20和外固定环30。因此，环形密封肋21径向地限制径向盘2上编码装置4的直径。这个环形密封肋21是用来把编码装置4装卡在内环20的环形槽22中用的。同样，固定径向盘8的弹胶物层10由环形肋31限制它的外径。这个环形密封肋31是用来把盘8装卡在外环30上的环形槽32中用的。
以后，我们一般地是参照内旋转环20选取编码装置4的旋转支撑物，参照外固定环30选取密封装置之固定元件的可能支撑物。
在上述装配中，编码装置4的外侧面很容易与固定径向盘8的支撑物即轴承的外环30之外侧面P面取平。
根据图3，径向盘2和编码装置4的圆周表面由间隙16径向地限制着。这个间隙16把它们与滚球轴承的外环30分开。
根据图4，间隙16的轴向尺寸由唇口33决定。该唇口33径向延伸到编码装置4的外面，它与编码装置4有相同的构成物质。
另外，该环形密封肋21是由不含铁氧体的弹胶物构成的。
图5描述了带有编码装置的密封装配装置。该装置中，带编码装置的径向盘2与图3所描述的结构是一致的。在图5中，环形密封肋21是由不带铁氧体的弹胶物构成的。
在上述装配中，带有密封唇口11，11′的密封弹胶物层10的固定径向盘8与图1中所描述结构是一致的。譬如图1中的径向唇口11′支撑在一个滚球轴承的内旋转环20上。
图6描述了带编码装置的密封装置的简化型式。它安装在滚针轴承的内固定环30和外旋转环20之间。径向盘2通过安装的管径3从外面延伸到环形腔15里面，该腔限定在轴承环20，30和轴承侧面的P面之间。
编码装置4可以使
-外径向唇口33与外旋转环20的孔颈相接触。
-径向唇口34与内固定环30的锥颈相接触。
图7描述的是另一种带编码装置的密封装置的简化型式。它安装在滚球轴承的内固定环30和外旋转环20之间。在此例中，编码装置4的侧面很容易与轴承侧面的P面取平。
径向盘2带有一个大家知道的弹胶物装置。它有两个径向唇口35，在弹簧作用下，压紧在内固定环30上起双密封作用。

Claims (9)

1、一种带编装置的密封装配装置，它具有装在旋转的支撑物(1，20)上的园盘(2)，此园盘的一面敷有磁性弹胶物，另一面轴向地限定一个环形腔，这种装置的特征在于：编码装置(4)的外侧面有密封接头(13，21，33)，并固定在园盘(2)上，这个侧面很容易与支撑物(6，20)侧面的平面(P)取平，这个支撑物(6)可能带有一个安装在环形腔(15)里的密封装置(8)，这个环形腔是由支撑物侧面的面(P)轴向地限定的。
2、依照权利要求1的密封装配装置，其特征在于：连有编码装置的密封装置至少是由一个径向唇口（13，33）组成的。
3、依照权利要求1的密封装配装置，其特征在于：连有编码装置的密封装置是由环形密封肋（21）组成的，这个环形密封（21）与旋转的支撑物（20）的环形槽（22）相接触。
4、依照权利要求3的密封装配装置，其特征在于：编码装置的密封肋（21）是由不含磁粒的弹胶物组成的，并与编码装置（4）是分开的。
5、依照权利要求1至4中任何一项的密封装配装置，其特征在于：园盘和编码装置（2，4）的圆周表面是由间隙（16）径向地限定的。
6、依照权利要求1至5中任何一项的密封装配装置，其特征在于：园盘和编码装置（2，4）的圆周表面装配在固定的密封唇口（17）的下面，并且，密封唇口（17）与旋转的编码装置（4）相接触。
7、依照权利要求1至6中任何一项的密封装配装置，其特征在于：环形腔（19）是由带编码装置的径向盘（2）和带有密封弹胶物（10）的固定径向槽（8）轴向地限定的，磁性液体充满在此环形腔中。
8、依照权利要求5的密封装配装置，其特征在于：由径向盘和编码装置（2，4）的圆周表面所限定的间隙（16）中充有磁性液体。
9、依照权利要求1至8的任何一项的密封装配装置，其特征在于：编码装置（4）的旋转支撑物，即径向盘（2）是用磁性材料制成的，它集中了编码装置发出的磁通量。
CN94101102A 1993-01-19 1994-01-18 带编码装置的密封装配装置 Expired - Lifetime CN1071007C (zh)

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FR9300458A FR2700588B1 (fr) 1993-01-19 1993-01-19 Dispositif de montage à joint d'étanchéité à codeur incorporé.
FR9300458 1993-01-19

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CN1094136A true CN1094136A (zh) 1994-10-26
CN1071007C CN1071007C (zh) 2001-09-12

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Cited By (9)

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CN100392269C (zh) * 2003-06-23 2008-06-04 Ntn株式会社 车轮用滚动轴承及使用该轴承的半浮式车轮用轴承装置
CN104379952A (zh) * 2012-03-20 2015-02-25 舍弗勒技术有限两合公司 具有紧凑的静态外径密封件的密封轴承
CN104379952B (zh) * 2012-03-20 2018-03-23 舍弗勒技术股份两合公司 具有紧凑的静态外径密封件的密封轴承
CN104421343A (zh) * 2013-09-04 2015-03-18 Skf公司 特别用于滚动轴承的密封和信号装置
CN107002882A (zh) * 2014-11-27 2017-08-01 德国斯凯孚爱科诺莫斯有限责任公司 密封组件及监测密封组件的方法
CN107110221A (zh) * 2014-11-27 2017-08-29 斯凯孚公司 密封组件及监测密封组件的动态性能的方法
CN107002882B (zh) * 2014-11-27 2019-07-09 德国斯凯孚爱科诺莫斯有限责任公司 密封组件及监测密封组件的方法
US10458551B2 (en) 2014-11-27 2019-10-29 Aktiebolaget Skf Sealing assembly and method for monitoring a sealing assembly
US10788381B2 (en) 2014-11-27 2020-09-29 Aktiebolaget Skf Load measurement device and method for determining load

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Publication number Publication date
EP0890752A3 (fr) 2000-05-17
FR2700588A1 (fr) 1994-07-22
ES2343226T3 (es) 2010-07-26
DE69330201D1 (de) 2001-06-13
JP2004340979A (ja) 2004-12-02
ES2157212T3 (es) 2001-08-16
EP0890752A2 (fr) 1999-01-13
AU5313994A (en) 1994-07-28
EP0890752B1 (fr) 2010-02-17
DE69334336D1 (de) 2010-08-19
EP0890753A3 (fr) 2000-05-17
FR2700588B1 (fr) 1995-02-17
CN1071007C (zh) 2001-09-12
ES2347392T3 (es) 2010-10-28
EP0892185A2 (fr) 1999-01-20
BR9400118A (pt) 1994-08-09
EP0892185A3 (fr) 2000-05-17
AU663984B2 (en) 1995-10-26
EP0607719B1 (fr) 2001-05-09
EP0890753A2 (fr) 1999-01-13
KR940018655A (ko) 1994-08-18
DE69334334D1 (de) 2010-07-22
JPH06281018A (ja) 1994-10-07
JP4021432B2 (ja) 2007-12-12
EP0890753B1 (fr) 2010-06-09
US5431413A (en) 1995-07-11
EP0892185B1 (fr) 2010-07-07
TW308243U (en) 1997-06-11
DE69330201T2 (de) 2001-10-11
EP0607719A1 (fr) 1994-07-27
JP2007052036A (ja) 2007-03-01
KR100287042B1 (ko) 2001-05-02
DE69334321D1 (de) 2010-04-01

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