Title:
DAMPER DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/021501
Kind Code:
A1
Abstract:
Disclosed is a damper device wherein a cylinder element is divided by a partition wall into two chambers, i.e., a first chamber divided from the outside by a cap element and a second chamber in which a piston element is contained. A passage which communicates the first chamber with the second chamber is formed in the partition wall, and a shaft portion is projected from the partition wall within the first chamber. The cap element is provided with a through hole, and can be moved from a reference position in the axial direction of the cylinder element by inserting the shaft portion into the through hole. The cap element is provided with a throttle mechanism by which a clearance between the through hole and the shaft portion is altered when the cap element is moved from the reference position by the variation of pressure caused by a movement or a relative movement of the piston element.
Inventors:
KOIZUMI KAZUYOSHI (JP)
HARADA AKINORI (JP)
HARADA AKINORI (JP)
Application Number:
PCT/JP2010/063108
Publication Date:
February 24, 2011
Filing Date:
August 03, 2010
Export Citation:
Assignee:
NIFCO INC (JP)
KOIZUMI KAZUYOSHI (JP)
HARADA AKINORI (JP)
KOIZUMI KAZUYOSHI (JP)
HARADA AKINORI (JP)
International Classes:
F16F9/34; F16F9/02
Foreign References:
| JP2009024726A | 2009-02-05 | |||
| JP2008275138A | 2008-11-13 | |||
| JPS6453652U | 1989-04-03 | |||
| JP2008275138A | 2008-11-13 | |||
| JP2009189065A | 2009-08-20 |
Other References:
See also references of EP 2469121A4
Attorney, Agent or Firm:
OGAWA, Toshiharu et al. (JP)
Toshiharu Ogawa (JP)
Toshiharu Ogawa (JP)
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