Title:
SEALING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/181227
Kind Code:
A1
Abstract:
Provided is a sealing device that can suppress the exudation of an object to be sealed regardless of the value of the rotation speed of a shaft, even when a pumping action is utilized. The sealing device (1) is provided with a sealing device body (2) and a slinger (3), wherein the sealing device body (2) is provided with: an annular reinforcing ring (10) and an annular elastic body part (20) provided as an elastic body mounted on the reinforcing ring (10). The slinger (3) includes a flange part (31) that is an annular part extending toward the outer peripheral side. The elastic body part (20) includes an annular end surface lip (21) that extends toward the inside (in the direction of arrow a) and contacts the flange part (31) from the outside (in the direction indicated by arrow b). At least one groove (33) is formed in the other side (outside) of the flange part (31) of the slinger (3). On the surface (inner circumferential surface (22)) on the inner circumferential side of the end surface lip (21), a plurality of radial projections (33) are formed side by side in the circumferential direction and at least one circumferential projection (24) is also formed.
Inventors:
ITO SOSUKE (JP)
INOUE MASAHIKO (JP)
SAKANO YUYA (JP)
MATSUI HIROKI (JP)
HAMAMOTO KOKICHI (JP)
NAKAGAWA TAKEHIRO (JP)
YONAI HISATO (JP)
INOUE MASAHIKO (JP)
SAKANO YUYA (JP)
MATSUI HIROKI (JP)
HAMAMOTO KOKICHI (JP)
NAKAGAWA TAKEHIRO (JP)
YONAI HISATO (JP)
Application Number:
PCT/JP2018/012236
Publication Date:
October 04, 2018
Filing Date:
March 26, 2018
Export Citation:
Assignee:
NOK CORP (JP)
International Classes:
F16J15/3204; F16J15/3244
Domestic Patent References:
| WO2015190450A1 | 2015-12-17 |
Foreign References:
| JP2015232364A | 2015-12-24 | |||
| JP2015072058A | 2015-04-16 | |||
| JP2000028005A | 2000-01-25 | |||
| JPS5637172B2 | 1981-08-29 |
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
Download PDF: