Title:
DAMPER FOR ABSORBING ROTATIONAL VARIATION
Document Type and Number:
WIPO Patent Application WO/2017/006621
Kind Code:
A1
Abstract:
Provided is a damper for absorbing a rotational variation, the damper having improved torque transmission ability and vibration damping performance, which are achieved without increasing the size of the damper. This damper for absorbing a rotational variation is provided with: a hub (10); a pulley body (31) disposed so as to be coaxial with and rotatable relative to the hub (10); and coupling rubber (32) for connecting the hub (10) side and the pulley body (31) side so that the hub (10) and the pulley body (31) can be circumferentially displaced relative to each other. The hub (10) has a plurality of first protrusions (15) provided at predetermined circumferential intervals. The pulley body (31) has a plurality of second protrusions (36) provided at predetermined circumferential intervals so as to be located between the first protrusions (15). The coupling rubber (32) has formed thereon buffer sections (321) located between the first protrusions (15) and the second protrusions (36). When the amount of relative circumferential displacement between the hub (10) and the pulley body (31) is greater than or equal to a predetermined value, the first protrusions (15) and the second protrusions (36) are in contact with the buffer sections (321) from both circumferential sides.
Inventors:
NARITA NOBUHIKO (JP)
Application Number:
PCT/JP2016/064079
Publication Date:
January 12, 2017
Filing Date:
May 12, 2016
Export Citation:
Assignee:
NOK CORP (JP)
International Classes:
F16F15/126; F16F15/12; F16H55/36
Foreign References:
| JP2005201433A | 2005-07-28 | |||
| JP2004132492A | 2004-04-30 | |||
| JP2013036530A | 2013-02-21 | |||
| JP2011012688A | 2011-01-20 | |||
| JP2004028177A | 2004-01-29 | |||
| US20130337952A1 | 2013-12-19 | |||
| JP2006522288A | 2006-09-28 |
Other References:
See also references of EP 3318779A4
Attorney, Agent or Firm:
NOMOTO Yoichi et al. (JP)
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