Title:
DYNAMIC DAMPER
Document Type and Number:
Japanese Patent JP2018204709
Kind Code:
A
Abstract:
To provide a dynamic damper which adequately achieves an eccentricity suppression effect of an inertial mass body by a radial stopper, and does not obstruct a vibration absorption effect by a damper.SOLUTION: A shaft inside insertion type dynamic damper 1 mounted in a hollow portion of a rotational shaft 61, has a metallic holding member 11 attached to an inner peripheral side of the rotational shaft 61, a rubber foot 23 provided in an inner peripheral side of the holding member 11, an inertial mass body 31 connected to an inner peripheral side of the rubber foot 23, and a radial stopper 42 provided in the inner peripheral side of the holding member 11 and restricting an eccentric amount of the inertial mass body 31. The radial stopper 42 is constituted by combining a metallic protrusion part 43 provided in a part of a circumference of the holding member 11 so as to protrude inward in a radial direction, and a cover part 44 adhered on a surface of the protrusion part 43 and made of a rubber elastic body.SELECTED DRAWING: Figure 1
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Inventors:
IKEDA MASAHIRO
Application Number:
JP2017111256A
Publication Date:
December 27, 2018
Filing Date:
June 06, 2017
Export Citation:
Assignee:
NOK CORP
International Classes:
F16F15/12; F16C3/02; F16F15/124
Domestic Patent References:
| JP2003139196A | 2003-05-14 | |||
| JP2016070462A | 2016-05-09 | |||
| JPH05149386A | 1993-06-15 | |||
| JP2003247595A | 2003-09-05 | |||
| JP2010216579A | 2010-09-30 | |||
| JP2004150543A | 2004-05-27 | |||
| JP2008025799A | 2008-02-07 | |||
| JPS6269645U | 1987-05-01 |
Foreign References:
| US20030040370A1 | 2003-02-27 | |||
| US6837345B1 | 2005-01-04 |
Attorney, Agent or Firm:
Yoichi Nomoto
Kiriyama Dai
Kiriyama Dai