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Title:
DAMPING VALVE
Document Type and Number:
Japanese Patent JP2011185390
Kind Code:
A
Abstract:

To surely perform a damping force adjustment and fail-safe operation and to prevent free movement in a hole which is an arranged part of a main valve including a poppet valve element for making the damping force adjustment.

The damping valve includes the poppet valve element 7 disposed in a passage L allowing an operating fluid from the upstream side in a shock absorber to pass downstream in the shock absorber. The passage L includes a reduced diameter part 14d formed of a hole for setting a passage area in the passage L, and an enlarged diameter part 14e continuous with the reduced diameter part 14d, and the poppet valve element is housed in the enlarged diameter part 14e. The poppet valve element 7 includes a tip part 7c with a pointed end facing an opening in the reduced diameter part 14d, and a base end sliding part 7a slidably housed in the enlarged diameter part 14e with a sliding clearance S while being continuously provided with the tip part 7c. When the operating fluid flowing out of the reduced diameter part 14d passes through the enlarged diameter part 14e, the base end sliding part 7a is radially decentered in the enlarged diameter part 14e by fluid force caused by the flow of the operating fluid, to prevent the radial free movement of the base end sliding part 7a in the enlarged diameter part 14e.


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JP5961129Shock absorber
Inventors:
OTAKE KOJI
KAMAKURA RYOSUKE
MORI TOSHIHIRO
MATSUSHITA YUSUKE
Application Number:
JP2010052909A
Publication Date:
September 22, 2011
Filing Date:
March 10, 2010
Export Citation:
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Assignee:
KYB CO LTD
International Classes:
F16F9/50; F16K1/00; F16K31/06; F16K47/02
Domestic Patent References:
JP2001123887A2001-05-08
JPS61154369U1986-09-25
JPS6169566U1986-05-13
JP2008045746A2008-02-28
JP2003262282A2003-09-19
JPH0291276U1990-07-19
JPS4836363B11973-11-05
JP2009222136A2009-10-01
JPH0434576U1992-03-23
JPH0861554A1996-03-08
JPS5351451Y21978-12-09
JPS6236836U1987-03-04
JP2001123887A2001-05-08
JPS61154369U1986-09-25
JPS6169566U1986-05-13
JP2008045746A2008-02-28
JP2003262282A2003-09-19
JPH0291276U1990-07-19
JPS4836363B11973-11-05
JP2002523703A2002-07-30
JPS631979U1988-01-08
Attorney, Agent or Firm:
Izumi Amano
Ken Ishikawa



 
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