Title:
PACKING AND SEALING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2008/069234
Kind Code:
A1
Abstract:
A packing and a sealing system capable of enhancing an accumulation avoiding
function. A packing (1) fitted to an annular groove provided in one member out
of a housing having a shaft hole and shaft to be inserted into the shaft hole to seal
the annular gap between the two members, which comprise a base (10) and a lip portion
(12) projecting from the groove bottom side of the annular groove in the base (10)
toward a sealed object side, and which is constituted such that, when the peripheral
surfaces on the groove bottom side of the annular grooves in the base (10) and the
lip portion (12) tightly contact the groove bottoms of the annular grooves and
a pressure on a non-sealed object side goes higher than a pressure on a sealed object
side, the base (10) and the lip portion (12) deform to allow the sealed object side
to communicate with the non-sealed object side at contact portions with the groove
bottoms of the annular grooves and thereby reduce a pressure on the non-sealed
object side, wherein the base (10) is provided with a pressure guide path for allowing
a contact portion between the lip portion (12) and the groove bottom of the annular
groove to communicate with the non-sealed object side.
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Inventors:
TADANO, Hikaru (Miyado Nihonmatsu-sh, Fukushima 33, 9648533, JP)
▲但▼野光 (〒33 福島県二本松市宮戸３０番地 ＮＯＫ株式会社内 Fukushima, 9648533, JP)
▲但▼野光 (〒33 福島県二本松市宮戸３０番地 ＮＯＫ株式会社内 Fukushima, 9648533, JP)
Application Number:
JP2007/073493
Publication Date:
June 12, 2008
Filing Date:
December 05, 2007
Export Citation:
Assignee:
NOK CORPORATION (12-15, Shiba Daimon 1-chome Minato-k, Tokyo 85, 1058585, JP)
ＮＯＫ株式会社 (〒85 東京都港区芝大門１丁目１２番１５号 Tokyo, 1058585, JP)
TADANO, Hikaru (Miyado Nihonmatsu-sh, Fukushima 33, 9648533, JP)
ＮＯＫ株式会社 (〒85 東京都港区芝大門１丁目１２番１５号 Tokyo, 1058585, JP)
TADANO, Hikaru (Miyado Nihonmatsu-sh, Fukushima 33, 9648533, JP)
International Classes:
F16J15/32; F15B15/14
Attorney, Agent or Firm:
SERA, Kazunobu et al. (Acropolis 21 Building 6th floor, 4-10 Higashi Nihonbashi 3-chom, Chuo-ku Tokyo 04, 1030004, JP)
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