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    • 3. 发明专利
    • Rotating shaft seal
    • 旋转轴封
    • JP2011202755A
    • 2011-10-13
    • JP2010071511
    • 2010-03-26
    • Mitsubishi Cable Ind Ltd三菱電線工業株式会社
    • FUJII NOBUKAZUOIDA HIROKI
    • F16J15/32
    • F16J15/3228F16J15/3232F16J15/324
    • PROBLEM TO BE SOLVED: To provide a rotating shaft seal capable of maintaining stable sealing performance for a long time even when strict requests such as high rotation and low leakage are made.SOLUTION: In the rotating shaft seal, first and second seal elements 1, 2 curved into an approximately J-shaped cross section via curved wall parts 5 and into a basic thickness T are curved along a shaft axial center L in opposite directions. Strip-shaped recessed circumferential grooves 7 are formed on opposing surfaces 6 of the respective curved wall parts 5 of the first and second seal elements 1, 2. Tip edges 8 come into contact with an outer surface 9a of a rotating shaft 9 with the contact surface pressure at a peak and the contact width E not greater than twice the basic thickness T.
    • 要解决的问题:提供一种能够长时间保持稳定的密封性能的旋转轴密封,即使在严格要求如高旋转和低泄漏时也是如此。解决方案:在旋转轴密封件中,第一和第二密封元件1, 2通过弯曲的壁部分5弯曲成大致J形的横截面,并且基本厚度T沿着轴向中心L在相反的方向上弯曲。 在第一和第二密封元件1,2的相应弯曲壁部分5的相对表面6上形成有带状的凹形周向槽7,顶端边缘8与旋转轴9的外表面9a接触, 峰值处的表面压力和接触宽度E不大于基本厚度T的两倍。
    • 4. 发明专利
    • Rotary shaft seal
    • 旋转轴密封
    • JP2014025501A
    • 2014-02-06
    • JP2012164603
    • 2012-07-25
    • Mitsubishi Cable Ind Ltd三菱電線工業株式会社
    • OIDA HIROKIFUJII NOBUKAZU
    • F16J15/32F16J15/16
    • PROBLEM TO BE SOLVED: To provide a rotary shaft seal with a capability that one kind of rotary shaft seal is sufficient even in a case of being used to a rotary shaft performing bidirectional rotation (capable of being used as both for right rotation and for left rotation), and capable of significantly improving sealability.SOLUTION: In a rotary shaft seal having a resin seal element 4, the seal element 4 has a circular ring sheet shape with an inner peripheral circle 6 and an outer peripheral circle 7 in a free state before assembly, and one or more independent circular grooves 8 formed so as to surround the inner peripheral circle 6 are disposed eccentrically with respect to the outer peripheral circle 7.
    • 要解决的问题:为了提供一种旋转轴密封,其具有即使在用于执行双向旋转的旋转轴的情况下也能够使用一种旋转轴密封(能够用于右旋转和向左) 旋转),并且能够显着提高密封性。解决方案:在具有树脂密封元件4的旋转轴密封件中,密封元件4具有圆形环片形状,具有自由状态的内圆周6和外周圆7 在组装之前,并且围绕内周圆6形成的一个或多个独立的圆形槽8相对于外周圆7偏心地设置。