Title:
DYNAMIC VIBRATION ABSORBER
Document Type and Number:
Japanese Patent JP2020097965
Kind Code:
A
Abstract:
To provide a dynamic vibration absorber capable of suppressing resonance of not only vibration in a rotating direction of a rotating shaft but also vibration in an inclination direction of the rotating shaft to a center axis of the rotating shaft, while suppressing occurrence of imbalance.SOLUTION: An outer peripheral face side of a slide bearing 120 is provided with an annular projecting portion 121 of which a cross-sectional shape obtained by cutting a slide bearing 120 at a face including a center axis of the slide bearing 120 is a circular arc shape projecting to a radial outer side, an inner peripheral face side of a vibration ring 130 is provided with an annular recessed portion 132a of which a cross-sectional shape obtained by cutting a vibration ring 130 at a face including a center axis of the vibration ring 130 is a circular arc shape recessed to a radial outer side, and the outer peripheral face of the annular projecting portion 121 and the inner peripheral face of the annular recessed portion 132a are slidably kept into contact with each other.SELECTED DRAWING: Figure 3
Inventors:
YAMAGUCHI TATSUYA
IWATA NAOYA
IWATA NAOYA
Application Number:
JP2018235594A
Publication Date:
June 25, 2020
Filing Date:
December 17, 2018
Export Citation:
Assignee:
NOK CORP
International Classes:
F16F15/126; F16C17/10; F16C23/04; F16C43/02
Domestic Patent References:
| JPH02253028A | 1990-10-11 | |||
| JPH04111941U | 1992-09-29 | |||
| JP2002242929A | 2002-08-28 | |||
| JPH0589999U | 1993-12-07 | |||
| JP2004257404A | 2004-09-16 | |||
| JPH08114220A | 1996-05-07 | |||
| JP2000283164A | 2000-10-13 |
Attorney, Agent or Firm:
Hidewa Patent Office