Title:
SEALING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/024566
Kind Code:
A1
Abstract:
The present invention is capable of inhibiting conductivity performance from being affected by a use state or use time, suppressing reduction in sealing performance, reducing sliding resistance, and further improving the conductivity performance. A sealing device (1) comprises a reinforcement ring (10), an elastic body portion (20), a conductive grease (G), and a conductive fabric (30) having an annular shape. The elastic body portion (20) has a dust lip (21) and a seal lip (22). The seal lip (22) has a lip contact surface (24) being a tubular surface formed so as to be contactable with a shaft. The conductive fabric (30) has: an inner-peripheral-side contact portion (31) having an annular shape and formed so as to be contactable with the shaft; and an outer-peripheral-side contact portion (32) having an annular shape and formed so as to be contactable with an outer-peripheral-side member. The conductive grease (G) is provided so as to be present in at least a part of the lip contact surface (24) and at least a part of the seal lip (22) and an inter-lip space (S).
Inventors:
KAMIYA YUSUKE (JP)
HAMAMOTO KOKICHI (JP)
HAMAMOTO KOKICHI (JP)
Application Number:
PCT/JP2021/022450
Publication Date:
February 03, 2022
Filing Date:
June 14, 2021
Export Citation:
Assignee:
NOK CORP (JP)
International Classes:
F16J15/3204; F16J15/3248
Domestic Patent References:
| WO2019131899A1 | 2019-07-04 |
Foreign References:
| JP2016020739A | 2016-02-04 | |||
| JP2014142065A | 2014-08-07 | |||
| JP2017155929A | 2017-09-07 | |||
| US5195757A | 1993-03-23 | |||
| JPS60167263U | 1985-11-06 | |||
| JP2015207534A | 2015-11-19 | |||
| JP2000244180A | 2000-09-08 | |||
| JP2015014296A | 2015-01-22 |
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
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