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    • 5. 发明专利
    • Dust cover
    • JP3988024B2
    • 2007-10-10
    • JP2001373631
    • 2001-12-07
    • Nok株式会社
    • 秀和 丹羽
    • F16C11/06
    • PROBLEM TO BE SOLVED: To provide a dust cover capable of reinforcing coupling of a dust cover body 12 and a seal lip member 13, reducing the number of parts and the cost, and facilitating assembling, while providing breakage resistance and the seal performance of the dust cover 11. SOLUTION: This dust cover comprises the dust cover body 12 made form an elastic element such as elastic plastic resin integrally molded with a film portion 12c between a first end installing portion 12a disposed on outer periphery of a ball stud 4 and a second end installing portion 12b attached to a socket 2, and the seal lip member 13 made from a elastic element such as rubber disposed on an inner periphery of the first end installing portion 12a in the dust cover body 12 and tightly contacted with an peripheral surface of the ball stud 4. The dust cover body 12 and the seal lip member 13 are integrated with each other by interposing and molding the seal lip member 13 when the dust cover body 12 is molded after molding the seal lip member 13. COPYRIGHT: (C)2003,JPO
    • 6. 发明专利
    • Ball-joint dust cover
    • JP5376237B2
    • 2013-12-25
    • JP2009212653
    • 2009-09-15
    • Nok株式会社
    • 秀和 丹羽
    • F16C11/06F16J3/04F16J15/52
    • F16C11/0671
    • To provide a durable ball-joint dust cover (6) capable of efficiently preventing dust from entering into a dust cover even when a small diameter opening slides inside a ferrule toward a spherical head portion (2) in the case where an inclined angle of a ball stud with respect to a socket is large (in the case where an oscillation angle is large). A ball-joint dust cover formed of a rubberlike elastic material and having a configuration in which a spherical head portion (2) formed at one end of a ball stud (1) is held inside a socket, a shaft at the other end of the ball stud is clamped and fixed to a knuckle (5), a one-end large diameter opening (8) is fixed and held to the outer peripheral surface of the socket (3) by an annular pressing ring (7), and the other-end small diameter opening is held to the shaft through a ferrule (9) having a substantially U-shaped cross-section, wherein a front end (911) of a radial portion (91) of the ferrule on the side of the knuckle is bent toward the small diameter opening (15) so as to form an outer-peripheral-side cylindrical portion (92).
    • 7. 发明专利
    • Fixed structure of the dust cover
    • JP5146646B2
    • 2013-02-20
    • JP2007294407
    • 2007-11-13
    • Nok株式会社
    • 善行 石垣宇善 岩坂秀和 丹羽
    • F16J3/04F16B21/04F16C11/06F16J15/52
    • F16C11/0671
    • PROBLEM TO BE SOLVED: To provide a structure for fixing a fixed portion of a dust cover in which a reinforcing ring is embedded, to a mounting member such as a socket, while improving fixing force. SOLUTION: The reinforcing ring 21 has an engaging protrusion 24 formed on part of the circumference by protruding part of the inner periphery from the inner peripheral face of the fixed portion 12 inward in the radial direction, and the mounting member 2 has an engaging groove 6 formed in part of the circumference for inserting the engaging protrusion 24. The engaging groove 6 serially has an one-end opening portion 7 as an insertion port for the engaging protrusion 24, a first groove portion 8 extending from the one-end opening portion 7 in one axial direction, a second groove portion 9 extending from the first groove portion 8 in one circumferential direction, and a third groove portion 10 extending from the second groove portion 9 in the other axial direction in a terminated shape. The engaging protrusion 24 is inserted from the one-end opening portion 7 into the first groove portion 8 and consequently into the second groove portion 9 during mounting, to engage with the third groove portion 10 with spring-back due to the rubber elasticity of the dust cover fixed portion 12. COPYRIGHT: (C)2009,JPO&INPIT