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JP2000097277A5 - - Google Patents

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Publication number
JP2000097277A5
JP2000097277A5 JP1998287230A JP28723098A JP2000097277A5 JP 2000097277 A5 JP2000097277 A5 JP 2000097277A5 JP 1998287230 A JP1998287230 A JP 1998287230A JP 28723098 A JP28723098 A JP 28723098A JP 2000097277 A5 JP2000097277 A5 JP 2000097277A5
Authority
JP
Japan
Prior art keywords
characteristic
damping
cylinder
damping force
valve body
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP1998287230A
Other languages
Japanese (ja)
Other versions
JP2000097277A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP10287230A priority Critical patent/JP2000097277A/en
Priority claimed from JP10287230A external-priority patent/JP2000097277A/en
Publication of JP2000097277A publication Critical patent/JP2000097277A/en
Publication of JP2000097277A5 publication Critical patent/JP2000097277A5/ja
Pending legal-status Critical Current

Links

Description

【特許請求の範囲】
【請求項1】 油液が封入されたシリンダと、該シリンダ内に摺動可能に嵌装されて前記シリンダ内を2つのシリンダ室に画成するピストンと、一端が前記ピストンに連結され他端が前記シリンダの外部へ延出されたピストンロッドと、前記シリンダ室に連通する油路と、前記ピストンの摺動によって生じる前記油路内の油液の流動を制御して減衰力を発生させるとともに該減衰力を調整可能とした減衰力調整機構とを備えた減衰力可変ダンパであって、前記減衰力調整機構は、該減衰力発生機構に所定の加速度が生じたとき、その慣性力によって前記油路の流路面積を調整する弁体を有し、前記弁体が一方に移動した際に、伸び行程の減衰特性をハード特性とすると共に縮み行程の減衰特性をソフト特性とし、前記弁体が他方に移動した際に、伸び行程の減衰特性をソフト特性とすると共に縮み行程の減衰特性をハード特性とすることを特徴とする減衰力可変ダンパ。
[Claims]
1. A cylinder in which an oil solution is sealed, a piston that is slidably fitted in the cylinder and defines the inside of the cylinder into two cylinder chambers, and one end connected to the piston and the other end. Controls the flow of the piston rod extending to the outside of the cylinder, the oil passage communicating with the cylinder chamber, and the oil liquid in the oil passage caused by the sliding of the piston to generate a damping force. A damping force variable damper including a damping force adjusting mechanism capable of adjusting the damping force, wherein when a predetermined acceleration is generated in the damping force generating mechanism, the inertial force causes the damping force adjusting mechanism. It has a valve body that adjusts the flow path area of the oil passage, and when the valve body moves to one side, the damping characteristic of the extension stroke is made a hard characteristic and the damping characteristic of the contraction stroke is made a soft characteristic. A variable damping force damper characterized in that the damping characteristic of the expansion stroke is a soft characteristic and the damping characteristic of the contraction stroke is a hard characteristic when the cylinder moves to the other side.

【0006】
【課題を解決するための手段】
上記の課題を解決するために、請求項1の発明は、油液が封入されたシリンダと、該シリンダ内に摺動可能に嵌装されて前記シリンダ内を2つのシリンダ室に画成するピストンと、一端が前記ピストンに連結され他端が前記シリンダの外部へ延出されたピストンロッドと、前記シリンダ室に連通する油路と、前記ピストンの摺動によって生じる前記油路内の油液の流動を制御して減衰力を発生させるとともに該減衰力を調整可能とした減衰力調整機構とを備えた減衰力可変ダンパであって、前記減衰力調整機構は、該減衰力発生機構に所定の加速度が生じたとき、その慣性力によって前記油路の流路面積を調整する弁体を有し、前記弁体が一方に移動した際に、伸び行程の減衰特性をハード特性とすると共に縮み行程の減衰特性をソフト特性とし、前記弁体が他方に移動した際に、伸び行程の減衰特性をソフト特性とすると共に縮み行程の減衰特性をハード特性とすることを特徴とする。
0006
[Means for solving problems]
In order to solve the above problems, the invention of claim 1 is a cylinder in which an oil liquid is sealed and a piston that is slidably fitted in the cylinder and defines the inside of the cylinder into two cylinder chambers. A piston rod having one end connected to the piston and extending to the outside of the cylinder, an oil passage communicating with the cylinder chamber, and an oil liquid in the oil passage generated by sliding of the piston. A damping force variable damper including a damping force adjusting mechanism capable of controlling the flow to generate a damping force and adjusting the damping force, wherein the damping force adjusting mechanism is predetermined to the damping force generating mechanism. It has a valve body that adjusts the flow path area of the oil passage by the inertial force when acceleration occurs, and when the valve body moves to one side, the damping characteristic of the extension stroke is made a hard characteristic and the contraction stroke. When the valve body moves to the other side, the damping characteristic of the expansion stroke is the soft characteristic and the damping characteristic of the contraction stroke is the hard characteristic .

【0041】
【発明の効果】
以上詳述したように、請求項1の発明の減衰力可変ダンパによれば、減衰力調整機構に加速度が生じると、弁体がその慣性力によって移動して、前記弁体が一方に移動した際には、伸び行程の減衰特性をハード特性とすると共に縮み行程の減衰特性をソフト特性に、前記弁体が他方に移動した際には、伸び行程の減衰特性をソフト特性とすると共に縮み行程の減衰特性をハード特性に自動的に切り換わるので、電動アクチュエータ等を設けることなく、容易にスカイフック理論に基づくセミアクティブダンパ制御が可能となる
[0041]
【Effect of the invention】
As described in detail above, according to the damping force variable damper of the invention of claim 1, when acceleration is generated in the damping force adjusting mechanism, the valve body moves due to the inertial force, and the valve body moves to one side. In some cases, the damping characteristic of the extension stroke is set to the hard characteristic and the damping characteristic of the contraction stroke is set to the soft characteristic, and when the valve body moves to the other side, the damping characteristic of the extension stroke is set to the soft characteristic and the contraction stroke is set to the soft characteristic. Since the damping characteristic of is automatically switched to the hard characteristic, semi-active damper control based on the skyhook theory can be easily performed without providing an electric actuator or the like .

JP10287230A 1998-09-24 1998-09-24 Variable damping force damper Pending JP2000097277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10287230A JP2000097277A (en) 1998-09-24 1998-09-24 Variable damping force damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10287230A JP2000097277A (en) 1998-09-24 1998-09-24 Variable damping force damper

Publications (2)

Publication Number Publication Date
JP2000097277A JP2000097277A (en) 2000-04-04
JP2000097277A5 true JP2000097277A5 (en) 2005-12-08

Family

ID=17714731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10287230A Pending JP2000097277A (en) 1998-09-24 1998-09-24 Variable damping force damper

Country Status (1)

Country Link
JP (1) JP2000097277A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8770360B2 (en) 2001-08-30 2014-07-08 Fox Factory, Inc. Front bicycle suspension assembly with inertia valve

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7128192B2 (en) 2001-08-30 2006-10-31 Fox Factory, Inc. Inertia valve shock absorber
JP4910291B2 (en) * 2004-07-16 2012-04-04 日産自動車株式会社 Shock absorber for vehicles
US7699146B1 (en) 2006-04-02 2010-04-20 Fox Factory, Inc. Suspension damper having inertia valve and user adjustable pressure-relief
JP5453654B2 (en) * 2010-03-29 2014-03-26 日立オートモティブシステムズ株式会社 Cylinder device
JP5517129B2 (en) * 2010-09-30 2014-06-11 日立オートモティブシステムズ株式会社 Cylinder device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8770360B2 (en) 2001-08-30 2014-07-08 Fox Factory, Inc. Front bicycle suspension assembly with inertia valve

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