WO2008108444A1 - Damper - Google Patents

Damper Download PDF

Info

Publication number
WO2008108444A1
WO2008108444A1 PCT/JP2008/054088 JP2008054088W WO2008108444A1 WO 2008108444 A1 WO2008108444 A1 WO 2008108444A1 JP 2008054088 W JP2008054088 W JP 2008054088W WO 2008108444 A1 WO2008108444 A1 WO 2008108444A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
torque acting
damper
spaces
increasing
Prior art date
Application number
PCT/JP2008/054088
Other languages
French (fr)
Japanese (ja)
Inventor
Aiko Inaba
Motoharu Takai
Original Assignee
Nifco Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nifco Inc. filed Critical Nifco Inc.
Publication of WO2008108444A1 publication Critical patent/WO2008108444A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
    • F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

Since spaces formed by a trochoid tooth profile portion and the trochoid tooth profile portion of an inner member are allowed to communicate by the arcuate groove in a plate to enable silicon oil to flow, compression resistance is reduced and a torque acting on the rotor is reduced accordingly, thus reducing the damping force of a damper. When the plate is rotated to close one end side of the arcuate groove thus interrupting communication state of adjoining spaces, compression resistance of silicon oil is increased in the spaces thus increasing the torque acting on the rotor and increasing the damping force of the damper. In other words, the torque acting on the rotor can be varied depending on the rotational speed of the rotor.
PCT/JP2008/054088 2007-03-07 2008-03-06 Damper WO2008108444A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007057481A JP5064064B2 (en) 2007-03-07 2007-03-07 damper
JP2007-057481 2007-03-07

Publications (1)

Publication Number Publication Date
WO2008108444A1 true WO2008108444A1 (en) 2008-09-12

Family

ID=39738311

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/054088 WO2008108444A1 (en) 2007-03-07 2008-03-06 Damper

Country Status (4)

Country Link
JP (1) JP5064064B2 (en)
KR (1) KR20080082474A (en)
TW (1) TW200905102A (en)
WO (1) WO2008108444A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102713337A (en) * 2010-01-25 2012-10-03 株式会社利富高 Damper

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5113799B2 (en) * 2009-04-22 2013-01-09 株式会社ニフコ Rotating damper
CN102549295B (en) * 2009-09-30 2014-02-12 思嘎茨讷工业株式会社 Rotary damper
JP5751880B2 (en) * 2011-03-25 2015-07-22 日本電産サンキョー株式会社 Damper device and method for manufacturing damper device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5459572A (en) * 1977-10-20 1979-05-14 Tokico Ltd Hydraulic shock absorber
JPH09132189A (en) * 1996-05-27 1997-05-20 Unic Ab Hydraulic damping device for handle of motorcycle
JPH10246268A (en) * 1997-02-28 1998-09-14 Kayaba Ind Co Ltd Rotary damper
JP2000009169A (en) * 1998-04-22 2000-01-11 Unisia Jecs Corp Damper for vehicle
JP2002155925A (en) * 2000-11-20 2002-05-31 Fuji Seiki Co Ltd Rotary movement support mechanism
JP2002340076A (en) * 2001-05-16 2002-11-27 Strawberry Corporation Mechanical speed governing device
JP2003056620A (en) * 2001-08-17 2003-02-26 Somic Ishikawa Inc Rotary damper with lock function
JP2003222175A (en) * 2002-01-29 2003-08-08 Toyota Motor Corp Rotary damper and rotary damper device
JP2007309377A (en) * 2006-05-17 2007-11-29 Fuji Latex Kk Rotary damper device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6232243U (en) * 1985-08-13 1987-02-26
JP3342228B2 (en) * 1995-03-31 2002-11-05 株式会社ニフコ Rotary damper

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5459572A (en) * 1977-10-20 1979-05-14 Tokico Ltd Hydraulic shock absorber
JPH09132189A (en) * 1996-05-27 1997-05-20 Unic Ab Hydraulic damping device for handle of motorcycle
JPH10246268A (en) * 1997-02-28 1998-09-14 Kayaba Ind Co Ltd Rotary damper
JP2000009169A (en) * 1998-04-22 2000-01-11 Unisia Jecs Corp Damper for vehicle
JP2002155925A (en) * 2000-11-20 2002-05-31 Fuji Seiki Co Ltd Rotary movement support mechanism
JP2002340076A (en) * 2001-05-16 2002-11-27 Strawberry Corporation Mechanical speed governing device
JP2003056620A (en) * 2001-08-17 2003-02-26 Somic Ishikawa Inc Rotary damper with lock function
JP2003222175A (en) * 2002-01-29 2003-08-08 Toyota Motor Corp Rotary damper and rotary damper device
JP2007309377A (en) * 2006-05-17 2007-11-29 Fuji Latex Kk Rotary damper device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102713337A (en) * 2010-01-25 2012-10-03 株式会社利富高 Damper
CN102713337B (en) * 2010-01-25 2014-10-08 株式会社利富高 Damper

Also Published As

Publication number Publication date
JP2008215578A (en) 2008-09-18
TW200905102A (en) 2009-02-01
KR20080082474A (en) 2008-09-11
JP5064064B2 (en) 2012-10-31

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