Title:
ROTATION VARIATION ABSORPTION DAMPER
Document Type and Number:
Japanese Patent JP2019190508
Kind Code:
A
Abstract:
To obtain a characteristic which exerts large attenuation smaller than that at idling at the passage of a resonance point, can minimize the warpage of coupling rubber, and does not affect vibration resistance performance as extremely-small attenuation in a normal rotation area.SOLUTION: A rotation variation absorption damper for connecting a pulley 24 to a hub 2 via a cylindrical coupling rubber 23 comprises an annular slide member 33 located at an internal peripheral side of the coupling rubber 23, and fixed to the hub 2 side. The coupling rubber 23 is fixed to both end parts 23a, 23b in an axial direction, and contacts with the slide member 33 by the diameter contraction of an axial center part 23c when torsionally deformed at rotation. The slide member 33 is composed of a resin-made resin ring, a metal ring, or a metal ring coated with a resin coating at an external peripheral face.SELECTED DRAWING: Figure 2
Inventors:
NARITA NOBUHIKO
Application Number:
JP2018081139A
Publication Date:
October 31, 2019
Filing Date:
April 20, 2018
Export Citation:
Assignee:
NOK CORP
International Classes:
F16F15/129; F16F15/126; F16H55/36
Domestic Patent References:
| JP2007107637A | 2007-04-26 | |||
| JP2007100852A | 2007-04-19 | |||
| JP2004176880A | 2004-06-24 | |||
| JP2013036530A | 2013-02-21 |
Attorney, Agent or Firm:
Kiriyama Dai
Yoichi Nomoto
Yoichi Nomoto