JPWO2018163868A1 - 緩衝器 - Google Patents
緩衝器 Download PDFInfo
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- JPWO2018163868A1 JPWO2018163868A1 JP2019504474A JP2019504474A JPWO2018163868A1 JP WO2018163868 A1 JPWO2018163868 A1 JP WO2018163868A1 JP 2019504474 A JP2019504474 A JP 2019504474A JP 2019504474 A JP2019504474 A JP 2019504474A JP WO2018163868 A1 JPWO2018163868 A1 JP WO2018163868A1
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- damping force
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 34
- 230000035939 shock Effects 0.000 title claims abstract description 34
- 238000013016 damping Methods 0.000 claims abstract description 164
- 230000007246 mechanism Effects 0.000 claims abstract description 108
- 239000012530 fluid Substances 0.000 claims abstract description 27
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 description 32
- 239000007788 liquid Substances 0.000 description 26
- 238000003825 pressing Methods 0.000 description 11
- 239000000758 substrate Substances 0.000 description 11
- 230000008602 contraction Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
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- 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
-
- 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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
-
- 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
-
- 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
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
-
- 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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
- F16F9/3482—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body the annular discs being incorporated within the valve or piston body
-
- 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
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
- F16F9/437—Drainage arrangements
-
- 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
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/185—Bitubular units
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
本願は、2017年3月10日に日本に出願された特願2017−046270号について優先権を主張し、その内容をここに援用する。
本発明に係る第1実施形態を図1〜図6に基づいて説明する。なお、以下においては、説明の便宜上、図面における上側を「上」とし、図面における下側を「下」として説明する。
次に、第2実施形態を主に図7,図8に基づいて第1実施形態との相違部分を中心に説明する。なお、第1実施形態と共通する部位については、同一称呼、同一の符号で表す。
次に、第3実施形態を主に図9,図10に基づいて第2実施形態との相違部分を中心に説明する。なお、第1実施形態と共通する部位については、同一称呼、同一の符号で表す。
次に、第4実施形態を主に図11,図12に基づいて第2実施形態との相違部分を中心に説明する。なお、第2実施形態と共通する部位については、同一称呼、同一の符号で表す。
2 シリンダ
18 ピストン
19 上室(第1シリンダ室)
20 下室(第2シリンダ室)
21 ピストンロッド(軸状部材)
28 軸部(取付軸部)
41 減衰力発生機構(第1減衰力発生機構)
54 バネディスク(バネ手段)
56 ケース部材
67 貫通穴(第1貫通穴)
68 貫通穴(第2貫通穴)
69 ディスク
71 底部
82,116 通路部(導入オリフィス)
101 背圧室(第1室)
102 可変室(第2室)
130 通路(第1通路)
135 通路部(バイパス通路)
140 通路(第2通路)
145 減衰力発生機構(第2減衰力発生機構)
Claims (8)
- 作動流体が封入されるシリンダと、
前記シリンダ内に摺動可能に嵌装され、該シリンダ内を第1シリンダ室、第2シリンダ室に区画するピストンと、
一端側が前記ピストンに連結されると共に他端側が前記シリンダの外部に延出されるピストンロッドと、
前記ピストンの移動により一方の前記シリンダ室から作動流体が流れ出す第1通路と、
前記第1通路と並列に設けられる第2通路と、
前記第1通路に設けられて減衰力を発生させる第1減衰力発生機構と、
軸状部材に貫通し、内部に前記第2通路の少なくとも一部が形成される有底筒状で環状のケース部材と、
前記軸状部材に貫通し、前記ケース部材内の該ケース部材の底部に対向して配置され、前記ケース部材内の作動流体により撓み可能な環状のディスクと、
前記ケース部材内を前記ディスクにより画成されて設けられ、前記第1シリンダ室と連通する第1室および前記第2シリンダ室と連通する第2室と、
前記ケース部材の前記底部に設けられ、前記第2室と連通する第1貫通穴と、
該第1貫通穴と並列に設けられ、前記第1室と前記第2シリンダ室とを連通するバイパス通路と、
該バイパス通路に設けられ、第1室内の圧力が所定圧力に達した時に開弁して減衰力を発生させる第2減衰力発生機構と、
を有する緩衝器。 - 前記ディスクは、バネ手段で付勢されるフローティングタイプである請求項1記載の緩衝器。
- 前記ディスクは、部分的にクランプされるクランプタイプである請求項1記載の緩衝器。
- 前記第2減衰力発生機構は、前記ケース部材外に前記底部に対向して配置されており、
前記底部には、前記第2減衰力発生機構と対向して第2貫通穴が設けられている請求項1乃至3のいずれか一項記載の緩衝器。 - 前記第1貫通穴は、前記底部の前記第2貫通穴よりも外側に設けられている請求項4記載の緩衝器。
- 前記第1貫通穴は、前記底部の前記第2貫通穴よりも内側に設けられている請求項4記載の緩衝器。
- 前記第1減衰力発生機構は、前記ケース室の圧力により開弁が調整されることになり、
前記第1通路と前記ケース室との間に導入オリフィスが設けられている請求項1乃至6のいずれか一項記載の緩衝器。 - 前記導入オリフィスが直列に複数設けられている請求項7記載の緩衝器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017046270 | 2017-03-10 | ||
JP2017046270 | 2017-03-10 | ||
PCT/JP2018/006759 WO2018163868A1 (ja) | 2017-03-10 | 2018-02-23 | 緩衝器 |
Related Child Applications (1)
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JP2021003767A Division JP7224383B2 (ja) | 2017-03-10 | 2021-01-13 | 緩衝器 |
Publications (2)
Publication Number | Publication Date |
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JPWO2018163868A1 true JPWO2018163868A1 (ja) | 2019-11-07 |
JP6838220B2 JP6838220B2 (ja) | 2021-03-03 |
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JP2019504474A Active JP6838220B2 (ja) | 2017-03-10 | 2018-02-23 | 緩衝器 |
JP2021003767A Active JP7224383B2 (ja) | 2017-03-10 | 2021-01-13 | 緩衝器 |
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JP2021003767A Active JP7224383B2 (ja) | 2017-03-10 | 2021-01-13 | 緩衝器 |
Country Status (6)
Country | Link |
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US (1) | US11199241B2 (ja) |
JP (2) | JP6838220B2 (ja) |
KR (1) | KR102232127B1 (ja) |
CN (1) | CN110214239B (ja) |
DE (1) | DE112018001280T5 (ja) |
WO (1) | WO2018163868A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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KR102651283B1 (ko) * | 2019-01-18 | 2024-03-25 | 히다치 아스테모 가부시키가이샤 | 완충기 |
CN113631832A (zh) * | 2019-03-26 | 2021-11-09 | 日立安斯泰莫株式会社 | 缓冲器 |
KR102554152B1 (ko) * | 2019-06-05 | 2023-07-10 | 히다치 아스테모 가부시키가이샤 | 감쇠력 조정식 완충기 |
DE102019218008A1 (de) * | 2019-11-22 | 2021-05-27 | Zf Friedrichshafen Ag | Frequenzselektives Dämpfventil |
US11009094B1 (en) * | 2021-01-08 | 2021-05-18 | Factory Kahne, Llc | System and method for using a piston face and shim in a shock absorber with varying port configurations |
CN117043490A (zh) * | 2021-05-27 | 2023-11-10 | 日立安斯泰莫株式会社 | 缓冲器以及频率感应机构 |
CN117980622A (zh) * | 2021-09-15 | 2024-05-03 | 日立安斯泰莫株式会社 | 阻尼力产生机构 |
WO2024009629A1 (ja) * | 2022-07-08 | 2024-01-11 | 日立Astemo株式会社 | 減衰力発生機構 |
WO2024116546A1 (ja) * | 2022-11-28 | 2024-06-06 | 日立Astemo株式会社 | 緩衝器および減衰力発生機構 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03113139A (ja) * | 1989-09-25 | 1991-05-14 | Tokico Ltd | 油圧緩衝器 |
JP2005344911A (ja) * | 2004-06-07 | 2005-12-15 | Hitachi Ltd | 油圧緩衝器 |
JP2011202801A (ja) * | 2010-03-03 | 2011-10-13 | Hitachi Automotive Systems Ltd | 緩衝器 |
JP2012067880A (ja) * | 2010-09-24 | 2012-04-05 | Showa Corp | 周波数応答型液圧緩衝装置 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5115657A (en) * | 1974-07-31 | 1976-02-07 | Morinaga Milk Industry Co Ltd | Yokiirimukintofuno seizoho |
US6644445B2 (en) * | 2001-11-19 | 2003-11-11 | Tenneco Automotive Operating Company Inc. | Floating port blocker |
JP3978707B2 (ja) * | 2001-11-29 | 2007-09-19 | 株式会社日立製作所 | 減衰力調整式油圧緩衝器 |
FR2883612B1 (fr) * | 2005-03-22 | 2010-09-10 | Peugeot Citroen Automobiles Sa | Dispositif d'amortissement a flux croises a deux couvercles sans indexage |
JP4987283B2 (ja) * | 2005-11-09 | 2012-07-25 | カヤバ工業株式会社 | 緩衝器のバルブ構造および緩衝器 |
US8746423B2 (en) | 2010-03-02 | 2014-06-10 | Hitachi Automotive Systems, Ltd. | Shock absorber |
JP5639865B2 (ja) | 2010-03-02 | 2014-12-10 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
JP5518561B2 (ja) * | 2010-04-28 | 2014-06-11 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
DE102011075909B4 (de) * | 2011-03-28 | 2018-01-11 | Zf Friedrichshafen Ag | Verstellbare Dämpfventileinrichtung für einen Schwingungsdämpfer |
JP5924979B2 (ja) * | 2011-05-31 | 2016-05-25 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
JP5684925B2 (ja) | 2011-11-30 | 2015-03-18 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
US9182005B2 (en) * | 2012-04-23 | 2015-11-10 | Beijingwest Industries, Co. Ltd. | Hydraulic suspension damper with a floating disc valve |
NL2010038C2 (en) * | 2012-12-21 | 2014-06-24 | Koni Bv | Shock absorber. |
JP6188207B2 (ja) * | 2013-07-31 | 2017-08-30 | 日立オートモティブシステムズ株式会社 | シリンダ装置 |
KR101671967B1 (ko) * | 2014-03-28 | 2016-11-03 | 주식회사 만도 | 쇽업소버의 피스톤 어셈블리 |
JP2015194198A (ja) * | 2014-03-31 | 2015-11-05 | 日立オートモティブシステムズ株式会社 | 減衰力調整式緩衝器 |
KR102370708B1 (ko) * | 2015-05-11 | 2022-03-07 | 주식회사 만도 | 감쇠력 가변식 쇽업소버 |
JP6487784B2 (ja) * | 2015-06-10 | 2019-03-20 | Kyb株式会社 | 緩衝器 |
JP6528609B2 (ja) | 2015-08-28 | 2019-06-12 | 株式会社Ihi | 中継サーバ、中継方法、および中継プログラム |
KR102482569B1 (ko) | 2015-09-17 | 2022-12-29 | 에이치엘만도 주식회사 | 쇽업소버 |
KR102471853B1 (ko) * | 2015-10-22 | 2022-11-30 | 에이치엘만도 주식회사 | 감쇠력 가변식 쇽업소버 |
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2018
- 2018-02-23 US US16/491,657 patent/US11199241B2/en active Active
- 2018-02-23 DE DE112018001280.8T patent/DE112018001280T5/de active Pending
- 2018-02-23 KR KR1020197024222A patent/KR102232127B1/ko active IP Right Grant
- 2018-02-23 CN CN201880008761.8A patent/CN110214239B/zh active Active
- 2018-02-23 WO PCT/JP2018/006759 patent/WO2018163868A1/ja active Application Filing
- 2018-02-23 JP JP2019504474A patent/JP6838220B2/ja active Active
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2021
- 2021-01-13 JP JP2021003767A patent/JP7224383B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03113139A (ja) * | 1989-09-25 | 1991-05-14 | Tokico Ltd | 油圧緩衝器 |
JP2005344911A (ja) * | 2004-06-07 | 2005-12-15 | Hitachi Ltd | 油圧緩衝器 |
JP2011202801A (ja) * | 2010-03-03 | 2011-10-13 | Hitachi Automotive Systems Ltd | 緩衝器 |
JP2012067880A (ja) * | 2010-09-24 | 2012-04-05 | Showa Corp | 周波数応答型液圧緩衝装置 |
Also Published As
Publication number | Publication date |
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CN110214239B (zh) | 2020-12-01 |
WO2018163868A1 (ja) | 2018-09-13 |
JP6838220B2 (ja) | 2021-03-03 |
US11199241B2 (en) | 2021-12-14 |
DE112018001280T5 (de) | 2019-12-05 |
JP2021055850A (ja) | 2021-04-08 |
KR102232127B1 (ko) | 2021-03-25 |
US20200003272A1 (en) | 2020-01-02 |
JP7224383B2 (ja) | 2023-02-17 |
CN110214239A (zh) | 2019-09-06 |
KR20190109469A (ko) | 2019-09-25 |
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