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Patent Searching and Data


Title:
SEALING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/178292
Kind Code:
A1
Abstract:
Provided is a sealing device configured so as to prevent a dust lip from being reversed or damaged by the insertion of a shaft. Provided is a sealing device (100) which is characterized in that: a bumper section (125) consisting of a rubber-like elastic material is provided on the opposite side of a dust lip (122) from a sealed region (O), the bumper section (125) cushioning impact to which the dust lip (122) is subjected when a shaft is inserted into the sealing device (100); and the inner diameter of the inner peripheral-side tip of the bumper section (125) is set to be larger than the outer diameter of the portion of the shaft, on which a main lip (121) and the dust lip (122) slide, and smaller than the inner diameter of a part of the portion where the main lip (121) and the dust lip (122) are connected, the part being where the inner diameter of the portion is largest.

Inventors:
HAMAMOTO KOKICHI (JP)
NAKAGAWA TAKEHIRO (JP)
NAGAHAMAYA HIDEAKI (JP)
SATO SHIHO (JP)
Application Number:
PCT/JP2015/063971
Publication Date:
November 26, 2015
Filing Date:
May 15, 2015
Export Citation:
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Assignee:
NOK CORP (JP)
International Classes:
F16J15/32
Foreign References:
JPS5751870U1982-03-25
JP2005233218A2005-09-02
Other References:
See also references of EP 3147544A4
Attorney, Agent or Firm:
SERA Kazunobu et al. (JP)
Kazunobu Sera (JP)
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