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21. 发明专利

JP2003194234A MANUFACTURING METHOD FOR ROTATING SHAFT SEAL 审中-公开
公开(公告)号：JP2003194234A
公开(公告)日：2003-07-09
申请号：JP2001401237
申请日：2001-12-28
申请人： MITSUBISHI CABLE IND LTD
发明人： SHIMOURA HITOSHI , FUJII MASANORI , BABA TAKESHI
IPC分类号： F16J15/32
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for a rotating shaft seal, in which seal element using polytetrafluoroethylene as its main ingredient is bonded to a metal case with high adhesive strength, capable of being manufactured highly efficiently and in a short time with a small number of processes and easy management of each process and simple manufacturing equipment. SOLUTION: Fluororesin having a hydroxyl group in molecules is inserted in between the seal element 3 using the polytetrafluoroethylene as its main ingredient and the metal case 2, and an loaded object 20 is heated and compressed. The loaded object is then cooled under a loading condition to melt and solidify the thermoplastic fluororesin. COPYRIGHT: (C)2003,JPO

22. 发明专利

JP2003113946A SHAFT SEALING DEVICE 审中-公开
公开(公告)号：JP2003113946A
公开(公告)日：2003-04-18
申请号：JP2001310299
申请日：2001-10-05
申请人： MITSUBISHI CABLE IND LTD
发明人： TAIRA SHIGEKI , OBATA HIROMI , BABA TAKESHI
IPC分类号： F16J15/3232 , F16J15/3244 , F16J15/32
摘要： PROBLEM TO BE SOLVED: To provide a shaft sealing device capable of coping with increase of rotation speed of a rotating shaft and a use condition under which pressure in a shaft seal back surface side fluctuates and of improving and keeping a sealing function. SOLUTION: This shaft sealing device is installed between a housing 2 and the rotating shaft 1 and includes a first seal element 3 keeping slide contact with the rotating shaft 1 and a second seal element 4 arranged in a back surface gas side A of the first seal element 3 and keeping slide contact with the rotating shaft 1. A screw groove 6 is formed on a slide contact surface 5 of the first seal element 3. Thickness of the second seal element 4 is thinner than that of the first seal element 3 and width of a side contact part of the second seal element 4 is narrower than that of the first seal element 3.

23. 发明专利

JP2002276818A OIL SEAL 失效
公开(公告)号：JP2002276818A
公开(公告)日：2002-09-25
申请号：JP2001074191
申请日：2001-03-15
申请人： MITSUBISHI CABLE IND LTD
发明人： FUJII MASANORI , KAMIBAYASHI HIROYUKI , MIYASHITA YOSHIJI , BABA TAKESHI , HAGIWARA SHOJI
IPC分类号： C09K3/10 , F16J15/3252 , F16J15/328 , F16J15/32
摘要： PROBLEM TO BE SOLVED: To provide an oil seal having a simple structure as compared with a conventional one, a sufficient heat-resistant property, durability and excellent sealing property. SOLUTION: The oil seal 1 is provided with an oil seal fitting 2 and a seal element 2 containing a fluororesin as a main component. The oil seal fitting 2 and the seal element 3 are adhered to each other through an adhesive layer comprising a blend type adhesive of a dispersion type fluororesin and a polyimide resin.

24. 发明专利

JP2002267024A OIL SEAL 失效
公开(公告)号：JP2002267024A
公开(公告)日：2002-09-18
申请号：JP2001064049
申请日：2001-03-07
申请人： MITSUBISHI CABLE IND LTD
发明人： FUJII MASANORI , KAMIBAYASHI HIROYUKI , MIYASHITA YOSHIJI , BABA TAKESHI , HAGIWARA SHOJI
IPC分类号： F16J15/324 , F16J15/3252 , F16J15/328 , F16J15/32
摘要： PROBLEM TO BE SOLVED: To provide an oil seal of simple structure having a sufficient heat resistance and durability and exerting excellent sealing performance. SOLUTION: The oil seal 1 is equipped with a metal piece 2 for oil seal and a seal element 3 containing fluoro-resin as major component, wherein the metal piece 2 and seal element 3 are adhered to each other with an adhesive layer consisting of an adhesive of denatured epoxy-polyimide resin type interposed there between.

25. 发明专利

JP2000179702A SHAFT SEALING DEVICE 失效
公开(公告)号：JP2000179702A
公开(公告)日：2000-06-27
申请号：JP36092298
申请日：1998-12-18
申请人： TOYODA AUTOMATIC LOOM WORKS , MITSUBISHI CABLE IND LTD
发明人： YOKOMACHI HISAYA , FUJII TOSHIRO , IMAI TAKAYUKI , MURAKAMI KAZURO , OBATA HIROMI , BABA TAKESHI
IPC分类号： F16J15/3244 , F16J15/3252 , F16J15/32
摘要： PROBLEM TO BE SOLVED: To provide such a shaft sealing device as insures high shaft sealing performance even against the gas showing relatively high gas permeability to the seal material in use. SOLUTION: A seal 32 for a revolving shaft 17 is provided with a rubber seal element 42 and a resin seal element 43. The inner periphery of the seal element 42 is closely adhered with a thin metallic plate 50 in its entire area except a sliding part 47. Because the metallic plate 50 is thin enough, if the seal element 42 deforms elastically, the plate 50 also deforms together with the element 42, keeping close adhesion between the two. Thus, the thin metallic plate 50 is closely an firmly adhered to the surface of the seal element 42 even when the seal element 42 is press-contacted with the periphery of the revolving shaft 17 after the assembling of the seal 32 for the revolving shaft 17. In this way, a path, through which gas (carbon dioxide) showing high gas permeability to rubber or resin leaks permeating the seal elements 42, 43, can nearly be cut off by the thin metallic plate 50.

26. 发明专利

JPH11280916A Rotary shaft seal 失效
标题翻译：旋转轴密封
公开(公告)号：JPH11280916A
公开(公告)日：1999-10-15
申请号：JP10046698
申请日：1998-03-26
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： BABA TAKESHI , OBATA HIROMI
IPC分类号： F16J15/32 , F16J15/00
摘要： PROBLEM TO BE SOLVED: To provide excellent sealing performance through prevention of deformation of an elastic lip of a seal segment even under a high pressure and provide an increased life.
SOLUTION: A rotary shaft seal comprises a seal element 2 having a seal lip 21 having a helical groove 22 formed in a contact surface with a rotary shaft 10, a seal segment 3 arranged on the fluid side of the seal element 2 and having an elastic lip 31 in approximately linear contact with the rotary shaft 10, and a pressure reduction seal 5 arranged on the fluid side of the seal segment 3 and having a plurality of annular recessed grooves 51 formed on the rotary shaft 10 side. The rotary shaft seal is held by and formed between an outer case 1 to cover the outer peripheral sides of respective seal members and an inner case 4 arranged inside the outer case 1.
COPYRIGHT: (C)1999,JPO
摘要翻译：要解决的问题：即使在高压下也能防止密封段的弹性唇缘的变形，从而提供优异的密封性能并提供寿命增加。解决方案：旋转轴密封件包括具有密封唇21的密封元件2，密封唇21具有形成在与旋转轴10的接触表面中的螺旋槽22，密封段3布置在密封元件2的流体侧上并且具有弹性与旋转轴10大致线性接触的唇缘31和布置在密封段3的流体侧上并具有形成在旋转轴10侧的多个环形凹槽51的减压密封件5。旋转轴密封件被保持并形成在外壳1之间以覆盖各个密封构件的外周侧以及布置在外壳1内的内壳体4。

27. 发明专利

JPH11218231A ROTARY SHAFT SEAL 失效
公开(公告)号：JPH11218231A
公开(公告)日：1999-08-10
申请号：JP3407098
申请日：1998-01-30
申请人： MITSUBISHI CABLE IND LTD
发明人： BABA TAKESHI , HIRAKI HIDEKI
IPC分类号： F16J15/3224 , F16J15/447 , F16J15/32
摘要： PROBLEM TO BE SOLVED: To provide a alignment properties on a rotary shaft, and provide a stable labyrinth effect by arranging a ring made of an elastic body around a housing side of a rotary shaft seal, in a rotary shaft seal provided with a seal segment having a plurality of recessed grooves on a surface of a rotary shaft side. SOLUTION: A seal segment 3 have a alignment properties on a rotary shaft 1 by an elasticity of an O-ring 4 arranged around the outer periphery of the seal segment 3. Namely, in the case where the seal segment 3 is off-centered with the rotary shaft 1, or in the case where the rotary shaft 1 is off-centered, the seal segment 3 is displaced in a radial direction on a contact part by means of elasticity of the O-ring 4 even if the rotary shaft 1 is brought into contact with a part of the seal segment 3, the seal segment 3 and the rotary shaft 1 are off-centered nearly concentrically with each other. Eccentric abrasion of the seal segment 3 is reduced, a clearance between the seal segment 3 and the rotary shaft 1 is held to some extent by a concentricity action, and thereby, stable labyrinth effect can be provided.

28. 发明专利

JP2007225088A Rotating shaft seal 有权
标题翻译：旋转轴封
公开(公告)号：JP2007225088A
公开(公告)日：2007-09-06
申请号：JP2006050097
申请日：2006-02-27
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： BABA TAKESHI , OIDA HIROKI
IPC分类号： F16J15/32
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive rotary shaft seal having durability enough to cope with increased rotational speed of a vacuum pump and also having an excellent sealing performance. SOLUTION: The rotary shaft seal includes a seal element 1 having a cross-sectional shape curved in a substantially J shape with a curved wall 6 arranged at the intermediate portion. In the rotary shaft seal, a strip-like shallow recess 7 is formed in the curved wall 6 of the seal element 1. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种廉价的旋转轴密封件，其具有足够的耐久性以应对真空泵的提高的转速并且还具有优异的密封性能。解决方案：旋转轴密封件包括密封元件1，其密封元件1具有弯曲大致J形的横截面形状，其中在中间部分设置弯曲壁6。在旋转轴密封件中，在密封元件1的弯曲壁6中形成带状的浅凹槽7.版权所有（C）2007，JPO＆INPIT

29. 发明专利

JP2007162803A Rotating shaft seal and its manufacturing method 审中-公开
标题翻译：旋转密封及其制造方法
公开(公告)号：JP2007162803A
公开(公告)日：2007-06-28
申请号：JP2005358840
申请日：2005-12-13
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： BABA TAKESHI , OIDA HIROKI
IPC分类号： F16J15/32
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive rotating shaft seal having improved manufacturing efficiency and stable quality. SOLUTION: Caulking work for a metal outer case 2 is eliminated. At the same time when a seal part 4 is formed with molding, the outer case 2, a seal element 7, and the seal part 4 are formed into one unit. The seal element 7 has a plurality of through-holes 28 into which rubber flows during molding to adhere it to an inner flange part 9 of the outer case 2 into one unit. COPYRIGHT: (C)2007,JPO&INPIT

30. 发明专利

JP2004019798A Rotating shaft seal 审中-公开
公开(公告)号：JP2004019798A
公开(公告)日：2004-01-22
申请号：JP2002175870
申请日：2002-06-17
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： OBATA HIROMI , BABA TAKESHI
IPC分类号： F16J15/32
摘要： PROBLEM TO BE SOLVED: To provide a rotating shaft seal having excellent wear resistance and durability under the severe working conditions such as high pressure, high speed and high temperature. SOLUTION: The Shore A hardness of a rubber-made lip part is set within a suitable range. That is, the lip part is formed of rubber composition material where HNBR or its compounding ingredient is added so that the hardness ranges from 88 to 94. COPYRIGHT: (C)2004,JPO

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