Title:
HYDRAULIC AUTO-TENSIONER
Document Type and Number:
WIPO Patent Application WO/2016/129411
Kind Code:
A1
Abstract:
In the present invention a rod (15) is inserted into a bottomed cylinder (10) filled with operating oil, and a hydraulic damper (30) that absorbs pressing force in the direction causing the cylinder (10) and the rod (15) to retract relative to one another is provided in the cylinder (10). A cogwheel-shaped retaining ring (42) is formed integrally with an oil seal (40) sealing the end opening of the cylinder (10), thereby preventing a dust lip (40c) provided at the inner circumference of the oil seal (40) from being pulled into a center hole of the cogwheel-shaped retaining ring (42) by relative axial movement or relative tilting of the rod (15) and the cylinder (10).
Inventors:
MOCHIZUKI YUTA (JP)
KITANO SATOSHI (JP)
KITANO SATOSHI (JP)
Application Number:
PCT/JP2016/052605
Publication Date:
August 18, 2016
Filing Date:
January 29, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16H7/08; F16J15/3204
Foreign References:
| JP2011226564A | 2011-11-10 | |||
| JPH08303537A | 1996-11-19 | |||
| JP2005098321A | 2005-04-14 | |||
| JP2003166607A | 2003-06-13 |
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
Naoya Kamata (JP)
Naoya Kamata (JP)
Download PDF: