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公开(公告)号：EP2813975B1
公开(公告)日：2017-07-05
申请号：EP13746973.0
申请日：2013-01-25
申请人： NOK Corporation
发明人： NAKANO Tomoko , MIYAJIMA Keiichi
IPC分类号： G06K19/07 , G06K19/077 , G06K19/02
CPC分类号： G06K19/0775 , G06K19/027 , G06K19/0772 , G06K19/07728
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公开(公告)号：EP3174143A1
公开(公告)日：2017-05-31
申请号：EP15824972.2
申请日：2015-06-16
申请人： NOK Corporation
发明人： SHIMAZOE Toshihiro
IPC分类号： H01M8/02 , B29C45/14 , F16J15/10 , H01M8/10 , H01M8/0284 , H01M8/0286 , H01M8/0254
CPC分类号： H01M8/0286 , B29C45/14065 , B29C45/14336 , B29C2045/14098 , B29C2045/14459 , B29K2021/00 , B29K2905/00 , B29K2995/0046 , B29L2031/265 , B29L2031/3468 , F16J15/108 , H01M8/0254 , H01M8/0276 , H01M8/0284 , Y02P70/56
摘要： To effectively prevent a breakage of a plate (1) when a gasket body formed of a rubber-like elastic material is integrally molded at both faces of the plate formed of a brittle material such as carbon. In order to attain this object, there is provided a method of manufacturing a plate-integrated gasket in which a gasket body formed of a rubber-like elastic material is integrally formed at both sides of a portion along a peripheral edge of a plate (1) in the thickness direction, where an area (15) located between gasket molding cavities (23, 24) defined by clamping the plate (1) between split dies (21, 22) of a metal mold (2) in the plate (1) is formed to be a relatively thick portion (15a) at a position, facing an opening (25a) of a gate (25) through which a molding material is injected into the cavities (23, 24), and in the vicinity thereof.
摘要翻译： 当由诸如碳之类的脆性材料形成的板的两个面一体地模制由橡胶状弹性材料形成的垫圈体时，为了有效地防止板（1）的断裂。 为了实现该目的，提供了一种制造集成板的垫圈的方法，其中由橡胶状弹性材料形成的垫圈体一体地形成在沿着板的周边的部分的两侧（1 ）在金属模（2）的分割模（21,22）之间夹持板（1）而形成的垫圈成型用模腔（23,24）之间的区域（15） ）形成为在浇口（25）的开口（25a）的位置处形成为相对较厚的部分（15a），浇口（25）通过该开口将模制材料注入空腔（23,24）中及其附近。
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公开(公告)号：EP3156699A1
公开(公告)日：2017-04-19
申请号：EP15806192.9
申请日：2015-06-09
申请人： NOK Corporation
IPC分类号： F16J15/32
CPC分类号： F16J15/3204 , F16J15/164 , F16J15/32 , F16J15/3244 , F16J15/3256 , F16J15/3264 , F16J15/3456
摘要： A seal device provided with a sealing flange and a sealing lip in slidable contact with the sealing flange, wherein the occurrence of still leakage is suppressed when a rotating shaft stops rotating. To achieve this purpose, the invention provides a seal device for sealing the space between a housing and a rotating shaft inserted through a shaft hole provided in the housing to prevent a sealed fluid inside the device from leaking out of the device, a sealing lip fitted to the inner periphery of the shaft hole of the housing being in slidable contact with the entire periphery of a sealing flange fitted to the outer periphery of the rotating shaft; and the seal device being characterized in that a screw groove is provided for exerting a fluid pumping action when the rotating shaft rotates, and the screw groove is provided to a position where the screw groove does not cross the contact area in which the sealing lip is in slidable contact with the entire periphery of the sealing flange.
摘要翻译： 本发明提供一种密封装置，该密封装置设置有与密封凸缘滑动接触的密封凸缘和密封唇，其中当旋转轴停止旋转时抑制了仍然泄漏的发生。 为了实现该目的，本发明提供了一种用于密封壳体和旋转轴之间的空间的密封装置，所述空间通过设置在壳体中的轴孔插入，以防止装置内部的密封流体泄漏到装置外部，装配有密封唇 所述壳体的轴孔的内周与安装于所述旋转轴的外周的密封凸缘的整周可滑动地接触; 所述密封装置的特征在于，设置螺纹槽以在所述旋转轴旋转时施加流体泵送作用，并且所述螺纹槽设置在所述螺纹槽不与所述密封唇是所述接触区域的位置 与密封凸缘的整个周边滑动接触。
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公开(公告)号：EP3150885A1
公开(公告)日：2017-04-05
申请号：EP15800386.3
申请日：2015-05-15
申请人： NOK Corporation
发明人： HATANO Makoto
IPC分类号： F16J15/06
CPC分类号： F16J15/104 , F16J15/062 , F16J15/102 , F16J15/166 , F16J15/48
摘要： The present invention provides a sealing structure and a sealing device that can maintain sealing properties even when there is shaft eccentricity and can maintain the sealing properties over a long time even in an environment where there is cyclic variation in fluid pressure.
A sealing device 100 includes an O-ring 10 and a back-up ring 20. The back-up ring 20 includes a body part 21, and an annular protruding portion 23 protruding toward a sealed fluid side (A) on a radially outer side of the body part 21. An inner circumferential surface of the body part 21 has a second tapered surface 22 capable of sliding on a first tapered surface 211 formed at the bottom of an annular groove 210, the second tapered surface 22 being capable of sliding within a range of the first tapered surface 211.
An inner circumferential surface of the annular protruding portion 23 has an inclined surface radially increasing toward the sealed fluid side (A).摘要翻译： 本发明提供一种密封结构和密封装置，即使在存在轴偏心时也能够保持密封性，并且即使在流体压力的周期性变化的环境中也能够长时间保持密封性。 密封装置100包括O形环10和支撑环20.支撑环20包括主体部21和在径向外侧朝向密封流体侧（A）突出的环状突出部23 主体部分21的内圆周表面具有第二锥形表面22，该第二锥形表面22能够在形成于环形槽210的底部的第一锥形表面211上滑动，第二锥形表面22能够在主体部分21的内部滑动。 第一锥形表面211的范围。环形突出部23的内周表面具有朝向密封流体侧（A）径向增加的倾斜表面。
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公开(公告)号：EP3128210A1
公开(公告)日：2017-02-08
申请号：EP16177451.8
申请日：2013-03-11
申请人： NOK Corporation
发明人： SEKI, Kazunari , WATANABE, Koji , TOKUNAGA, Wataru , TAKAO, Yuki , XU, Fangman , MIZUTA, Hirotaka , NAKASHIMA, Keisuke , IGAWA, Takuya , YOSHIDA, Yusuke , WATANABE, Hideya , KONDO, Yosuke
IPC分类号： F16J15/18
CPC分类号： F01D11/003 , F16J9/20 , F16J15/164 , F16J15/18 , F16J15/181 , F16J15/3208 , F16J15/3244 , F16J15/442
摘要： A sealing device which is fitted into an annular groove formed in an outer periphery of a shaft so as to seal an annular gap between said shaft and a housing which rotate relative to each other, thereby to hold a fluid pressure in a region to be sealed which is constructed such that the fluid pressure therein changes, characterized by comprising:
an outer peripheral ring made of resin that is in intimate contact with a side wall surface of said annular groove at a low pressure side thereof, and slides with respect to an inner peripheral surface of a shaft hole in said housing through which said shaft is inserted; and
an inner peripheral ring made of a rubber-like elastic body that is in intimate contact with an inner peripheral surface of said outer peripheral ring and a groove bottom surface of said annular groove, respectively, thereby to push said outer peripheral ring toward an outer peripheral surface side thereof;
wherein said outer peripheral ring is formed on its outer peripheral surface with a plurality of concave portions which are spaced from one another in a circumferential direction and which each extend from an end of a high pressure side to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side; and
wherein convex portions each formed between adjacent concave portions are formed so as to extend from the high pressure side toward the low pressure side as they go in the sliding direction of said outer peripheral ring with respect to said housing.摘要翻译： 本发明提供一种密封装置，该密封装置嵌入形成于轴的外周的环状槽中，密封所述轴与壳体之间的相对旋转的环状间隙，从而将流体压力保持在密封对象区域 其构造成使得其中的流体压力发生变化，其特征在于包括：由树脂制成的外周环，所述外周环与所述环形凹槽的低压侧的侧壁表面紧密接触，并且相对于内部 所述轴插入的轴孔的外周表面; 以及由橡胶状弹性体制成的内周环，所述内周环分别与所述外周环的内周表面和所述环形凹槽的凹槽底表面紧密接触，从而将所述外周环推向外侧 其外周表面侧; 其中，所述外周环在其外周面上形成有多个凹部，所述多个凹部在周向上彼此间隔开，并且所述多个凹部分别从高压侧的端部延伸到未到达端部的位置 以便从高压侧向其中引入流体; 并且其中形成在相邻凹部之间的凸部形成为随着它们沿所述外周环相对于所述壳体的滑动方向而从高压侧朝向低压侧延伸。
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公开(公告)号：EP3115658A1
公开(公告)日：2017-01-11
申请号：EP16182921.3
申请日：2008-01-24
申请人： NOK Corporation
IPC分类号： F16J15/32 , F16J15/324 , F16J15/3268
CPC分类号： F16J15/324 , F16J15/3268
摘要： A sealing device comprising a sealing device main body (3) having a seal lip (33) which is slidably brought into close contact with an outer peripheral surface of a rotating shaft (2), and an oil injection port (12) for injecting oil (O) toward a position at an outer peripheral side from said seal lip (33) in the sealing device main body (3). The sealing device is provided with an oil scattering means (4) for rebounding the oil (O) injected from said oil injection port (12) to a portion in the vicinity of a sliding portion (S) of said seal lip (33) so as to scatter the oil (O). The oil scattering means (4) is constituted by a disc-shaped slinger (44) which rotates together with the rotating shaft (2), and the slinger (44) is provided with a plurality of holes (44c) which are arranged in a circumferential direction at radial positions where the oil (O) injected from the oil injection port (12) comes into collision.
摘要翻译： 1。一种密封装置，其特征在于，具备密封装置主体（3）和注油口（12），该密封装置主体具有与旋转轴（2）的外周面滑动接触的密封唇（33） （O）朝向密封装置主体（3）中的所述密封唇（33）的外周侧的位置。 密封装置设有用于将从所述注油口（12）注入的油（O）回弹到所述密封唇（33）的滑动部分（S）附近的部分的油散射装置（4） 以分散油（O）。 油散射装置（4）由与旋转轴（2）一起旋转的圆盘状抛油环（44）构成，抛油环（44）设置有多个孔（44c），所述多个孔 在从油注入口（12）注入的油（O）发生碰撞的径向位置处沿周向排列。
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公开(公告)号：EP3106687A1
公开(公告)日：2016-12-21
申请号：EP15749547.4
申请日：2015-02-05
申请人： NOK Corporation
发明人： YANAGI, Tokunori , HOSEN, Tatsuro
CPC分类号： F16C11/0671 , F16C2226/10 , F16J3/04 , F16J3/041 , F16J15/52
摘要： The objective of the present invention is to provide a dust cover for a ball joint which has good sealing performance at a small-diameter opening at the other end, and with which co-rotation of a plate member can be reliably prevented. In this dust cover for a ball joint, one end of a ball stud is held in a socket and the other end is secured by tightening, by means of a tightening means, a knuckle equipped with a notch part, a large-diameter opening at one end is affixed to and held on the socket side, a small-diameter opening on the other end is held on a shaft, and a plate member is held between the outer circumferential surface of the shaft and the inner circumferential surface of the knuckle on the small-diameter opening on the other end. This dust cover is configured such that the plate member is provided with an annular plate member, an annular seal part manufactured from a rubber-like elastic material and integrally formed on the inner circumferential side of the annular plate member, and an engaging protrusion that is manufactured from a rubber-like elastic material and engages the notch part on the knuckle-side surface of the annular plate member, with the annular seal part being compressed and held between the outer circumferential surface of the shaft and an annular step part provided on the inner circumferential surface of the knuckle.
摘要翻译： 本发明的目的是提供一种用于球接头的防尘罩，在另一端的小直径开口处具有良好的密封性能，并且可以可靠地防止板构件的共同旋转。 在该球窝接头的防尘罩中，球杆的一端被保持在一个插座中，另一端通过紧固来固定一个转向节，该转向节配有一个切口部分，一个大直径开口 将一端固定并保持在插座侧，另一端的小直径开口保持在轴上，板构件保持在轴的外周面和转向节的内周面之间， 另一端的小口径开口。 该防尘罩被构造成使得板构件设置有环形板构件，由橡胶状弹性材料制成并且一体地形成在环形板构件的内周侧上的环形密封部分和接合突起， 由橡胶状弹性材料制成，并且与环形板构件的转向节侧面上的切口部接合，环状密封部被压缩并保持在轴的外周面与设置在该环状板状的环状台阶部之间 转向节的内圆周表面。
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公开(公告)号：EP2883908B1
公开(公告)日：2016-12-21
申请号：EP13827844.5
申请日：2013-07-25
申请人： NOK Corporation
发明人： AOYAGI Ayako
摘要： An object is to provide an NBR composition excellent in cold resistance and heat resistance, which can be used with a wide range of temperatures, and an NBR composition excellent in oil resistance without substantially degrading compression set characteristics, and the object can be solved by an NBR composition comprising an NBR polymer, silica, an ether ester series plasticizer and a cross-linking agent, which comprises 100 parts by weight of the NBR polymer where an acrylonitrile content of the NBR polymer is within the range of 20 to 40%, 10 to 150 parts by weight of silica a primary particle size of which is within the range of 50 nm or bigger, and 3 to 20 parts by weight of an ether ester plasticizer a weight average molecular weight MW of which is 500 or more.
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公开(公告)号：EP2740763B1
公开(公告)日：2016-10-12
申请号：EP13194404.3
申请日：2013-11-26
申请人： NOK CORPORATION
发明人： Yokota, Atsushi
CPC分类号： C08L27/20 , C08K3/22 , C08K3/26 , C08K5/13 , C08K2003/222 , C08L27/16 , C08L27/18 , G11B25/043
摘要： Provided is a fluororubber composition which does not deteriorate workability during roll kneading, does not cause foaming during crosslinking and molding, and is capable of giving a crosslinked molded article which exhibits desired hardness and sealing property without using a reinforcing inorganic filler such as carbon black and silica. The fluororubber composition includes, relative to 100 parts by weight of a vinylidene fluoride-copolymerized, fluorine-containing elastomer copolymer having a glass transition temperature and a melting point, no reinforcing inorganic filler 5 to 100 parts by weight of a PTFE filler, 0.5 to 10 parts by weight of a polyol crosslinking agent, 1 to 15 parts by weight of magnesium oxide, and 0.1 to 2 parts by weight of hydrotalcite. Preferably, 0.1 to 10 parts by weight of a quaternary onium salt crosslinking accelerator is further included.
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公开(公告)号：EP3006788A1
公开(公告)日：2016-04-13
申请号：EP14808141.7
申请日：2014-05-26
申请人： NOK Corporation
发明人： WATANABE Koji , SEKI Kazunari
CPC分类号： F16J15/164 , F16J9/14 , F16J15/441 , F16J15/443
摘要： Provided is a seal ring that is designed to achieve a stable sealing performance while reducing the rotational torque. A seal ring (100) that makes intimate contact with a low-pressure-side (L) side wall surface of an annular groove (510) and slides against an inner circumferential surface of a shaft hole of a housing (600) through which a shaft (500) is inserted, is characterized in that, on an outer circumferential surface side thereof, a pair of concave portions (130) extending in a circumferential direction is provided on either side in a width direction, wherein a distance between a side surface on one side of a convex portion (120) that is disposed between the pair of concave portions (130) and a side surface on another side of the seal ring (100), and a distance between a side surface on another side of the convex portion (120) and a side surface on one side of the seal ring (100) are set to be shorter than a distance between an inner circumferential surface of the seal ring (100) and an outer circumferential surface of the convex portion (120).
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