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    • 1. 发明授权
    • Oil seal for reciprocation motion
    • 用于往复运动的油封
    • US08282107B2
    • 2012-10-09
    • US12310667
    • 2007-09-04
    • Kazuyoshi HoribaKazuhiko YonezawaShinichi SumimotoSeiji Miyazawa
    • Kazuyoshi HoribaKazuhiko YonezawaShinichi SumimotoSeiji Miyazawa
    • F16J15/32
    • F16J15/3216F16J15/322F16J15/56
    • An oil seal for reciprocation motion including a seal main body, a resin backup ring, and a holding member. The seal main body includes a seal lip that can be in sliding contact with a reciprocating shaft. The backup ring is disposed such as to support the seal lip from the atmosphere side to ensure durability of the seal lip. In the backup ring, at least a single annular groove is provided on the inner peripheral surface opposing the reciprocating shaft. The annular groove can hold a lubricating material. The holding member holds the backup ring between the holding member and the seal main body in a sandwiched-state. The inner peripheral surface of the backup ring forms a taper that increases in diameter from a sealed side towards an atmosphere side in the axial direction.
    • 一种用于往复运动的油封,包括密封主体,树脂支撑环和保持构件。 密封主体包括可与往复轴滑动接触的密封唇。 支撑环设置成从大气侧支撑密封唇,以确保密封唇的耐久性。 在支撑环中,在与往复轴相对的内周面上至少设有一个环形槽。 环形槽可以容纳润滑材料。 夹持构件在夹持构件和密封主体之间夹持支撑环。 支撑环的内周面形成从轴向方向从密封侧向大气侧直径增大的锥形。