JP6771522B2 - 緩衝器 - Google Patents
緩衝器 Download PDFInfo
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- JP6771522B2 JP6771522B2 JP2018190871A JP2018190871A JP6771522B2 JP 6771522 B2 JP6771522 B2 JP 6771522B2 JP 2018190871 A JP2018190871 A JP 2018190871A JP 2018190871 A JP2018190871 A JP 2018190871A JP 6771522 B2 JP6771522 B2 JP 6771522B2
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- cylinder
- intermediate cylinder
- seal ring
- chamber
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- 239000007788 liquid Substances 0.000 claims description 22
- 239000006096 absorbing agent Substances 0.000 claims description 20
- 230000035939 shock Effects 0.000 claims description 20
- 238000013016 damping Methods 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000003754 machining Methods 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
-
- 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
-
- 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
- F16F9/187—Bitubular units with uni-directional flow of damping fluid through the valves
-
- 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
- F16F9/3257—Constructional features of cylinders in twin-tube type devices
-
- 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
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/369—Sealings for elements other than pistons or piston rods, e.g. valves
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
-
- 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
-
- 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
- F16F2226/00—Manufacturing; Treatments
- F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/30—Sealing 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
- F16F2230/00—Purpose; Design features
- F16F2230/36—Holes, slots or the like
-
- 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
- F16F2232/00—Nature of movement
- F16F2232/08—Linear
-
- 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
- F16F2234/00—Shape
- F16F2234/02—Shape cylindrical
-
- 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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/062—Bi-tubular units
-
- 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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/064—Units characterised by the location or shape of the expansion chamber
-
- 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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
- F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
Description
さらに、緩衝器は、リザーバから第2室へ向かう液体の流れのみを許容する吸込通路と、第2室から第1室へ向かう液体の流れのみを許容する整流通路と、シリンダ内からリザーバへ向かう液体の流れに抵抗を与える減衰弁と、を備えている。中間筒とシリンダと減衰弁との間には、シリンダ内に連通する排出通路が形成される。中間筒は、内周面に、排出通路を閉塞するシールリングを収容可能な断面凹状の溝を有している。中間筒の溝の両側面のうち中間筒の軸端側に位置する側面が中間筒の軸方向と直交する面との間に形成される角度をθ1とし、中間筒の軸中央側に位置する側面が前記面との間に形成される角度をθ2とした場合に、θ1<θ2の関係を満たすように設定されている。
実施形態1を、図1〜図4に基づいて説明する。実施形態1の緩衝器10は、図1に示すように、略円筒状のシリンダ11と、シリンダ11内に往復摺動可能に挿入される略円柱状のピストン12と、ピストン12に連結される略円柱棒状のピストンロッド13と、シリンダ11の外周を覆う略円筒状の中間筒14と、中間筒14の外周を覆う略円筒状の外筒15と、を備えている。シリンダ11内は、ピストン12を挟んでピストンロッド13が位置する側となる第1室16とその反対側となる第2室17とに分画される。
図5は、実施形態2の中間筒14の溝31を含む拡大断面図である。実施形態2の緩衝器は、バックアップリング33を有さず、中間筒14の溝31にシールリング32のみが装着されている。なお、実施形態2において、実施形態1と同一又は対応する部分には実施形態1と同一の符号を付す。
(1)第1側面と第2側面の少なくとも一方は、ストレート状の面ではなく湾曲状の曲面で形成されるものであってもよい。この場合、角度θ1及び角度θ2は、前記曲面の接線と中間筒の軸直交方向の面との間で形成される。
(2)シールリングは正面視して角環状の形態であってもよい。実施形態1の場合、シールリングが正面視角環状の形態であれば、バックアップリングも正面視角環状の形態であるとよい。
(3)シールリングは外周にリップが周設されていてもよい。
(4)中間筒の溝の第1側面は面に対して傾かず、角度θ1は実質的にゼロになっていてもよい。
Claims (4)
- シリンダと、
前記シリンダ内に移動可能に挿入されるピストンロッドと、
前記ピストンロッドに連結され、前記シリンダ内を前記ピストンロッドが位置する側である第1室とその反対側である第2室とに分けるピストンと、
前記シリンダの外周を覆う外筒と、
前記シリンダと前記外筒との間に形成される環状のリザーバと、
前記リザーバから前記第2室へ向かう液体の流れのみを許容する吸込通路と、
前記第2室から前記第1室へ向かう液体の流れのみを許容する整流通路と、
前記シリンダ内から前記リザーバへ向かう液体の流れに抵抗を与える減衰弁と、
前記リザーバの内側で且つ前記シリンダと前記外筒との間に配置され、前記シリンダの外周を覆う中間筒と、
前記中間筒と前記シリンダと前記減衰弁との間に形成され、前記シリンダ内に連通する排出通路と、を備え、
前記中間筒は、内周面に、前記排出通路を閉塞するシールリングを収容可能な断面凹状の溝を有し、
前記中間筒の前記溝の両側面のうち前記中間筒の軸端側に位置する側面が前記中間筒の軸方向と直交する面との間に形成される角度をθ1とし、前記中間筒の軸中央側に位置する側面が前記面との間に形成される角度をθ2とした場合に、
θ1<θ2
の関係を満たすように設定されている緩衝器。 - 前記θ1は、5度未満に設定されている請求項1に記載の緩衝器。
- 前記θ2は、10度以下に設定されている請求項1又は請求項2に記載の緩衝器。
- 前記溝は、前記中間筒の両端部に設けられており、
各前記溝内には、前記シールリング、及び前記中間筒の軸端側にて前記シールリングと隣接するバックアップリングがそれぞれ設けられている請求項1乃至請求項3のいずれか一項に記載の緩衝器。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018190871A JP6771522B2 (ja) | 2018-10-09 | 2018-10-09 | 緩衝器 |
DE112019005049.4T DE112019005049T5 (de) | 2018-10-09 | 2019-08-01 | Stoßdämpfer |
PCT/JP2019/030248 WO2020075372A1 (ja) | 2018-10-09 | 2019-08-01 | 緩衝器 |
US17/277,494 US11892055B2 (en) | 2018-10-09 | 2019-08-01 | Shock absorber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018190871A JP6771522B2 (ja) | 2018-10-09 | 2018-10-09 | 緩衝器 |
Publications (3)
Publication Number | Publication Date |
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JP2020060229A JP2020060229A (ja) | 2020-04-16 |
JP2020060229A5 JP2020060229A5 (ja) | 2020-10-15 |
JP6771522B2 true JP6771522B2 (ja) | 2020-10-21 |
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ID=70164660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2018190871A Active JP6771522B2 (ja) | 2018-10-09 | 2018-10-09 | 緩衝器 |
Country Status (4)
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US (1) | US11892055B2 (ja) |
JP (1) | JP6771522B2 (ja) |
DE (1) | DE112019005049T5 (ja) |
WO (1) | WO2020075372A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102020210538A1 (de) * | 2020-08-19 | 2022-02-24 | Thyssenkrupp Ag | Schwingungsdämpfer und ein Dämpferrohr für einen Schwingungsdämpfer |
CN116658564B (zh) * | 2023-07-26 | 2023-10-10 | 山西新环精密制造股份有限公司 | 一种减震液压油缸 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6017681B2 (ja) * | 1976-02-07 | 1985-05-04 | 松下電工株式会社 | 斜め突き合わせ化粧単板の製造法 |
JP3887760B2 (ja) * | 1996-08-09 | 2007-02-28 | 株式会社日立製作所 | 減衰力調整式油圧緩衝器 |
KR100317070B1 (ko) * | 1997-09-26 | 2002-01-16 | 다가야 레이지 | 유압완충기 |
DE10207102B4 (de) * | 2002-02-20 | 2005-09-15 | Zf Sachs Ag | Schwingungsdämpfer |
KR101776323B1 (ko) * | 2010-09-29 | 2017-09-07 | 히다치 오토모티브 시스템즈 가부시키가이샤 | 완충기 |
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 |
JP5769522B2 (ja) * | 2011-06-30 | 2015-08-26 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
JP5784741B2 (ja) * | 2011-09-21 | 2015-09-24 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
JP6108876B2 (ja) * | 2012-08-20 | 2017-04-05 | 日立オートモティブシステムズ株式会社 | 枝管付チューブ、緩衝器及びこれらの製造方法 |
JP2014069210A (ja) * | 2012-09-28 | 2014-04-21 | Hitachi Automotive Systems Ltd | チューブの加工方法及び緩衝器 |
DE112014002179T5 (de) * | 2013-04-26 | 2015-12-31 | Hitachi Automotive Systems, Ltd. | Rohr und Stoßdämpfer |
JP6351336B2 (ja) * | 2014-03-31 | 2018-07-04 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
KR102589604B1 (ko) * | 2015-10-27 | 2023-10-13 | 히다치 아스테모 가부시키가이샤 | 완충기 및 완충기의 조립 방법 |
-
2018
- 2018-10-09 JP JP2018190871A patent/JP6771522B2/ja active Active
-
2019
- 2019-08-01 DE DE112019005049.4T patent/DE112019005049T5/de active Pending
- 2019-08-01 WO PCT/JP2019/030248 patent/WO2020075372A1/ja active Application Filing
- 2019-08-01 US US17/277,494 patent/US11892055B2/en active Active
Also Published As
Publication number | Publication date |
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US20210317892A1 (en) | 2021-10-14 |
JP2020060229A (ja) | 2020-04-16 |
DE112019005049T5 (de) | 2021-06-24 |
WO2020075372A1 (ja) | 2020-04-16 |
US11892055B2 (en) | 2024-02-06 |
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