JPS63280941A - Single cylinder hydraulic buffer - Google Patents
Single cylinder hydraulic bufferInfo
- Publication number
- JPS63280941A JPS63280941A JP11509387A JP11509387A JPS63280941A JP S63280941 A JPS63280941 A JP S63280941A JP 11509387 A JP11509387 A JP 11509387A JP 11509387 A JP11509387 A JP 11509387A JP S63280941 A JPS63280941 A JP S63280941A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- free piston
- oil chamber
- piston
- dust lip
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 11
- 230000035939 shock Effects 0.000 claims description 16
- 239000006096 absorbing agent Substances 0.000 claims description 15
- 239000011162 core material Substances 0.000 claims description 15
- 239000012528 membrane Substances 0.000 claims description 12
- 239000013013 elastic material Substances 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 10
- 239000002184 metal Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/066—Units characterised by the partition, baffle or like element
- F16F9/067—Partitions of the piston type, e.g. sliding pistons
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は車両のサスペンションなどに用いられる単筒
式の油圧緩衝器に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a monotube hydraulic shock absorber used in vehicle suspensions and the like.
従来の技術
例えば自動車のサスペンションには、衝撃の緩和および
振動の減衰のために緩衝器（ショックアブソーバ）が設
けられていることは広く知られているところであり、そ
の緩衝器のうち単筒式油圧緩衝器は、気泡の発生がない
ことにより減衰力が安定し、また取付姿勢に制約がない
等の利点がある。この単筒式油圧緩衝器の基本的な構成
は第４図に示す通りであり、チューブ１内にフリーピス
トン２が摺動自在に配置されて、チューブ１の内部が油
室３とガス至４とに区画され、油￥３にはオイルが充填
されるとともに、バルブ５を有しかつロッド６を連結し
たピストン７が設けられ、またガス至４には高圧ガスが
封入されている。したがって単筒式油圧緩衝器では、伸
び工程および縮み工程において油室３内におけるロッド
６の容積が増減するので、そのロッド６の容積に応じて
フリーピストン２が油室３側あるいはガス至４側に移動
し、それによりオイルが負圧になったりキャビテーショ
ンを起こしたりすることを防止する。Conventional Technology For example, it is widely known that automobile suspensions are equipped with shock absorbers to cushion shocks and dampen vibrations. The shock absorber has the advantage that the damping force is stable due to the absence of air bubbles, and there are no restrictions on the mounting position. The basic structure of this monotube hydraulic shock absorber is as shown in FIG. The oil tank 3 is filled with oil and is provided with a piston 7 having a valve 5 and connected to a rod 6, and the gas tank 4 is filled with high pressure gas. Therefore, in the single-tube hydraulic shock absorber, the volume of the rod 6 in the oil chamber 3 increases or decreases during the extension process and the contraction process, so the free piston 2 is moved toward the oil chamber 3 side or the gas chamber 4 side depending on the volume of the rod 6. This prevents the oil from becoming under pressure and causing cavitation.
またオイルが気体に接触することもないので、気泡の発
生が確実に阻止される。Furthermore, since the oil does not come into contact with gas, the generation of air bubbles is reliably prevented.
しかるにフリーピストン２は、油室３とガス室４との間
を確実にシールすることができ、また油室３側およびガ
ス室４側へ圧力に応じてスムースに移動し得るものであ
ることが要求される。そこで従来一般には、フリーピス
トン２を、金属製の本体部分の外周に０リングを嵌めた
構成としていた。しかしながら上記の一般的なフリーピ
ストン２では、油室３側もしくはガス室４側に移動する
際に金属製の本体部分がチューブ１の内周面に接触し、
摩耗や焼付きあるいは傷付き等を生じることがあり、ま
たチューブ１の内周面との間に微小な異物を噛み込んで
チューブ１の内周面やフリーピストン２の本体部分の外
周面もしくはシールのためのＯリングを傷付けることが
あり、ざらにはシールのためのＯリングとチューブ１の
内周面との間の摩擦が大きいためにフリーピストン２の
動き始めがスムースでなく、急激に移動するなどの各種
の問題があった。However, the free piston 2 is capable of reliably sealing between the oil chamber 3 and the gas chamber 4, and is capable of smoothly moving toward the oil chamber 3 side and the gas chamber 4 side according to the pressure. required. Therefore, in general, the free piston 2 has conventionally been configured such that an O-ring is fitted around the outer periphery of a metal main body portion. However, in the above-mentioned general free piston 2, the metal main body comes into contact with the inner peripheral surface of the tube 1 when moving to the oil chamber 3 side or the gas chamber 4 side,
Abrasion, seizure, or scratches may occur, and minute foreign objects may become trapped between the inner circumferential surface of the tube 1 and the outer circumferential surface of the inner circumferential surface of the tube 1, the outer circumferential surface of the main body of the free piston 2, or the seal. This may damage the O-ring for sealing, and in general, the friction between the O-ring for sealing and the inner circumferential surface of tube 1 is large, so the free piston 2 does not start moving smoothly and moves suddenly. There were various problems such as:
このような状況を背景として、従来、フリーピストンの
金属製の本体部分とチューブとの接触を避けるために、
シールのためのＯリングの外に合成樹脂製のピストンリ
ングを本体部分の外周に嵌め込んだ構成が実公昭５８−
２４０２９号によって提案されている。Against this background, conventionally, in order to avoid contact between the metal body of the free piston and the tube,
In addition to the O-ring for sealing, a synthetic resin piston ring is fitted around the outer periphery of the main body.
No. 24029.
また従来、油室とガス室とを仕切る弾性膜を設けたフリ
ーピストンが、特公昭６１−２２１７８号によって提案
されている。Furthermore, a free piston provided with an elastic membrane that partitions an oil chamber and a gas chamber has been proposed in Japanese Patent Publication No. 61-22178.
発明が解決しようとする問題点
しかるに上記の実公昭５８−２４０２９号によって提案
されているフリーピストンでは、０リングとピストンリ
ングとの２箇所でチューブの内周面に接触することにな
るので、軸心を中心とした揺動を防止して金属製の本体
部分とチューブとの接触およびそれに起因する摩耗や焼
付きなどの問題を解消できるが、チューブの内周面との
間に異物を噛み込むことを防止できないのみならず、チ
ューブの内周面との間で摩擦力を発生する部材が０リン
グとピストンリングとの２部材になるので、摩擦の増大
によって動き始めが更に急激になるなどの問題がある。Problems to be Solved by the Invention However, in the free piston proposed in the above-mentioned Japanese Utility Model Publication No. 58-24029, the 0 ring and the piston ring contact the inner peripheral surface of the tube at two places, so the shaft Although it prevents rocking around the center and eliminates problems such as contact between the metal main body and the tube and the wear and seizure caused by this, it can cause foreign objects to get caught between the tube and the inner circumferential surface of the tube. Not only is it impossible to prevent this from happening, but since there are two members, the O-ring and the piston ring, that generate frictional force between them and the inner circumferential surface of the tube, the increase in friction may cause the start of movement to become even more abrupt. There's a problem.
これに対して上記の特公昭６１−２２１７８＠によって
提案されているフリーピストンでは、油室もしくはガス
室の圧力の変動を弾性膜の変形によって吸収できるから
、スムースに動作させることができるが、特公昭６１−
２２１７８＠公報に示された構成では、本体部分を２分
割するとともに、その分割部分の間に弾性膜を挟み込ん
でいるから、構成が複雑であるうえに部品点数が多くて
コトス高になる問題があり、ざらにチューブの内周面と
の間に異物を噛み込むことを有効に防止し得ない問題が
ある。On the other hand, the free piston proposed by the above-mentioned Japanese Patent Publication No. 61-22178@ can absorb pressure fluctuations in the oil or gas chamber by deformation of the elastic membrane, so it can operate smoothly. Kosho 61-
In the configuration shown in the 22178@ publication, the main body is divided into two parts and an elastic membrane is sandwiched between the divided parts, so the configuration is complicated and there are many parts, making it expensive. However, there is a problem in that it is not possible to effectively prevent foreign matter from getting caught between the tube and the inner circumferential surface of the tube.
この発明は上記の各問題点を解消すべくなされたもので
、構成が簡単であり、しがもスムースな挙動を補償し、
ざらには耐久性に優れた単筒式油圧緩衝器を提供するこ
とを目的とするものである。This invention was made to solve each of the above-mentioned problems, and has a simple configuration, guarantees smooth behavior,
The main purpose of this invention is to provide a monotube hydraulic shock absorber with excellent durability.
問題点を解決するための手段
この発明は、上記の目的を達成するために、フリーピス
トンによってチューブ内を油室とガス室とに区画すると
ともに、バルブを有しかっロッドが連結されたピストン
を油室内に配置した単筒式油圧緩衝器において、前記フ
リーピストンを、前記チューブの内周面に摺接する複数
の環状の主リップと、軸線方向での一端部外周に形成さ
れてチューブの内周面に摺接するダストリップと、中心
部に形成された弾性膜とを備えた弾性材からなる被覆体
を、中心部に孔を設けた環状の芯材の外面に取付けて一
体化して構成したことを特徴とするものである。Means for Solving the Problems In order to achieve the above object, the present invention has a free piston that divides the inside of the tube into an oil chamber and a gas chamber, and a valve that separates the piston to which the rod is connected to the oil chamber. In a monotube hydraulic shock absorber placed indoors, the free piston includes a plurality of annular main lips that are in sliding contact with the inner peripheral surface of the tube, and a plurality of annular main lips that are formed on the outer periphery of one end in the axial direction and are arranged on the inner peripheral surface of the tube. A covering body made of an elastic material having a dust lip that slides into contact with the core material and an elastic membrane formed in the center part is attached to the outer surface of an annular core material having a hole in the center part. This is a characteristic feature.
−作 用
この発明の油圧緩衝器においても、油室の内部圧力の増
減に伴ってフリーピストンが移動する。-Function Also in the hydraulic shock absorber of the present invention, the free piston moves as the internal pressure of the oil chamber increases or decreases.
そのフリーピストンは複数の主リップによってチューブ
の内周面に接触しているから、移動の際に軸心を中心に
した傾きを生じることがなく、したがって硬度の高い芯
材がチューブの内周面に干渉することがない。またダス
トリップによってチューブの内周面との間に異物が侵入
することが防止される。さらに油室の内部圧力の増減に
よって弾性膜が撓むから、急激な圧力変動を弾性膜の変
形によって吸収し、急激な挙動が防止される。そしてこ
れらの主リップおよびダストリップならびに弾性膜を一
体に形成した被覆材を芯材に被せてフリーピストンが構
成されているから、部品点数が少ないうえに構成が簡単
になる。Since the free piston is in contact with the inner circumferential surface of the tube through multiple main lips, there is no inclination about the axis when it moves, and therefore the highly hard core material is in contact with the inner circumferential surface of the tube. without interfering with Further, the dust lip prevents foreign matter from entering between the tube and the inner circumferential surface of the tube. Furthermore, since the elastic membrane flexes as the internal pressure of the oil chamber increases or decreases, rapid pressure fluctuations are absorbed by the deformation of the elastic membrane, thereby preventing sudden behavior. Since the free piston is constructed by covering the core material with a covering material in which the main lip, the dust lip, and the elastic membrane are integrally formed, the number of parts is small and the construction is simple.
実施例 つぎにこの発明を実施例に基づいて説明する。Example Next, the present invention will be explained based on examples.
なお、この発明は前述した第４図に示す構成を基本構成
とした単筒弐油圧緩衝器を対象とし、そのフリーピスト
ンに特徴を有するものであり、したがって以下に述べる
実施例では、その特徴部分であるフリーピストンの構成
について説明する。The present invention is directed to a two-cylinder hydraulic shock absorber having the basic configuration shown in FIG. 4, which is characterized by its free piston. The structure of the free piston will be explained.
第１図はこの発明の一実施例を示す部分断面図であって
、チューブ１の内部を油室３とガス室４とに区画するフ
リーピストン１０は、芯材１１とその外面に被せた被覆
材１２とによって形成されている。この芯材１１は金属
や合成樹脂などの硬度の高い素材で形成され、その形状
は第２図に示すように、中心部に孔１３が形成されて全
体として環状をなし、かつ外周縁が軸線方向に屈曲され
、そして外径がチューブ１の内径より小ざく設定された
ものである。また被覆材１２はゴムなどの弾性材料から
なるもので必って、第３図に示すように円板部１４の外
周部に軸線方向に沿う周壁部１５を形成した形状であり
、前記芯材１１を内側に取付けるための溝１６が、周壁
部１５の端部および円板部１４の内面に形成されている
。また周壁部１５の外周面のうち軸線方向に互いにずれ
た２箇所に、前記チューブ１の内周面に摺接する突条す
なわち主リップ１７．１８が形成され、さらに円板部１
４と周壁部１５との境界部分すなわち軸線方向での一端
部に、軸線に対して斜め外側に向けて突出しかつ前記チ
ューブ１の内周面に摺接するダストリップ１９が形成さ
れている。そして円板部１４の中心部すなわち前記芯材
１１の孔１３に対応する位置に弾性的に撓む弾性膜２０
が形成されている。FIG. 1 is a partial cross-sectional view showing an embodiment of the present invention, in which a free piston 10 that divides the inside of a tube 1 into an oil chamber 3 and a gas chamber 4 is made up of a core material 11 and a coating on its outer surface. material 12. This core material 11 is made of a highly hard material such as metal or synthetic resin, and as shown in FIG. The outer diameter of the tube 1 is set to be smaller than the inner diameter of the tube 1. The covering material 12 is made of an elastic material such as rubber, and has a shape in which a peripheral wall portion 15 extending in the axial direction is formed on the outer peripheral portion of the disk portion 14 as shown in FIG. A groove 16 for attaching the groove 11 on the inside is formed at the end of the peripheral wall section 15 and on the inner surface of the disc section 14. Furthermore, protrusions or main lips 17 and 18 are formed at two locations on the outer circumferential surface of the peripheral wall portion 15 that are shifted from each other in the axial direction, and are in sliding contact with the inner circumferential surface of the tube 1.
A dust lip 19 is formed at the boundary between the tube 4 and the peripheral wall 15, that is, at one end in the axial direction, and projects obliquely outward with respect to the axis and slides into contact with the inner circumferential surface of the tube 1. An elastic membrane 20 is elastically bent at the center of the disk portion 14, that is, at a position corresponding to the hole 13 of the core material 11.
is formed.
これら芯材１１と被覆材１２とは、被覆材１２が芯材１
１の外面を覆い、かつ前記溝１６に芯材１１を嵌め込ん
だ状態で接着されて一体化され、この状態で前記主リッ
プ１７．１８およびダストリップ１９がチューブ１の内
周面に接触するようチューブ１内に挿入されている。The core material 11 and the covering material 12 are such that the covering material 12 is the core material 1
1 and is glued and integrated with the core material 11 fitted into the groove 16, and in this state, the main lip 17, 18 and the dust lip 19 contact the inner peripheral surface of the tube 1. It is inserted into the tube 1.
したがって上記のフリーピストン１０は、２条の主リッ
プ１７．１８によってチューブ１の内周面に接触してい
るから、軸心を中心とした傾きが防止されてチューブ１
の内面との異常摩擦やそれに起因する焼付きなどの不都
合が生じず、また摺動向への異物の侵入はダストリップ
１９によって有効に防止される。さらに油￥３の内部圧
力に変化が生じた場合、先ず前記弾性膜２０が撓むため
に、油室３内にあってロッドを連結したピストンがスム
ースに移動し、油室３の内部圧力が更に変化してフリー
ピストン１０に作用する力がチューブ１との間の最大摩
擦力以上になると、フリーピストン１０が移動し始め、
したがって緩衝器の全体としての挙動がスムースになる
。そしてフリーピストン１０は、前記芯材１１の外面に
前記被覆材１２を一体化するよう取付けた構成であるか
ら、部品点数が少なく構成の簡単なものとすることがで
きる。Therefore, since the above-mentioned free piston 10 is in contact with the inner circumferential surface of the tube 1 by the two main lips 17 and 18, the tube 1 is prevented from tilting about the axis.
The dust lip 19 effectively prevents inconveniences such as abnormal friction with the inner surface of the slider and seizure caused by it, and entry of foreign matter into the sliding movement. Furthermore, when a change occurs in the internal pressure of the oil 3, first the elastic membrane 20 bends, so the piston connected to the rod in the oil chamber 3 moves smoothly, and the internal pressure of the oil chamber 3 changes further. When the force acting on the free piston 10 exceeds the maximum frictional force with the tube 1, the free piston 10 begins to move,
Therefore, the overall behavior of the shock absorber becomes smooth. Since the free piston 10 has a structure in which the covering material 12 is integrally attached to the outer surface of the core material 11, the number of parts is small and the structure can be simple.
発明の効果
以上の説明から明らかなようにこの発明の油圧緩衝器で
は、フリーピストンの傾きによるチューブ内面のかじり
やフリーピストンとチューブとの間への異物の噛み込み
によるかじりなどが防止されるために、摩耗や焼付きあ
るいはチューブもしくはフリーピストンの損傷などによ
る耐用寿命の低下を防止でき、また弾性膜を設けたこと
により、スムースな動作を行なわせることができる。ざ
らにフリルピストンは芯材の外面に弾性材からなる被覆
材を取付けた簡単な構成であるから、必要部品点数の削
減と併せて製造工程の簡素化やコストの低減を図ること
ができ、さらには軽量化を図ることができる。Effects of the Invention As is clear from the above explanation, the hydraulic shock absorber of the present invention prevents galling of the inner surface of the tube due to the inclination of the free piston and galling due to foreign matter caught between the free piston and the tube. In addition, it is possible to prevent a reduction in service life due to wear, seizure, or damage to the tube or free piston, and by providing an elastic membrane, smooth operation can be achieved. Since the rough frill piston has a simple structure with a covering material made of elastic material attached to the outer surface of the core material, it is possible to reduce the number of required parts, simplify the manufacturing process, and reduce costs. The weight can be reduced.
第１図はこの発明に係る単筒式油圧緩衝器のフリーピス
トンの一例を示す断面図、第２図はその芯材の断面斜視
図、第３図は同被覆材の断面斜視図、第４図は単筒弐油
圧緩衝器の基本構成を示す概略図である。
１・・・チューブ、 ３・・・油室、 ４・・・ガス至
、５・・・バルブ、 ６・・・ロッド、 ７・・・ピ
ストン、１０・・・フリーピストン、 １１・・・芯
材、 １２・・・被覆材、 １３・・・孔、 １７．１
８・・・主リップ、１９・・・ダストリップ、 ２０・
・・弾性膜。FIG. 1 is a cross-sectional view showing an example of a free piston of a monotube hydraulic shock absorber according to the present invention, FIG. 2 is a cross-sectional perspective view of its core material, FIG. 3 is a cross-sectional perspective view of the covering material, and FIG. The figure is a schematic diagram showing the basic configuration of a two-cylinder hydraulic shock absorber. 1...Tube, 3...Oil chamber, 4...Gas to, 5...Valve, 6...Rod, 7...Piston, 10...Free piston, 11...Core Material, 12... Covering material, 13... Hole, 17.1
8... Main lip, 19... Dust lip, 20.
...Elastic membrane.
Claims (1)
区画するとともに、バルブを有しかつロッドが連結され
たピストンを油室内に配置した単筒式油圧緩衝器におい
て、 前記フリーピストンが、前記チューブの内周面に摺接す
る複数の環状の主リップと、軸線方向での一端部外周に
形成されてチューブの内周面に摺接するダストリップと
、中心部に形成された弾性膜とを備えた弾性材からなる
被覆体を、中心部に孔を設けた環状の芯材の外面に取付
けて一体化した構成であることを特徴とする単筒式油圧
緩衝器。[Scope of Claims] A monotube hydraulic shock absorber in which the inside of the tube is divided into an oil chamber and a gas chamber by a free piston, and a piston having a valve and connected to a rod is disposed in the oil chamber, The free piston includes a plurality of annular main lips that are in sliding contact with the inner peripheral surface of the tube, a dust lip that is formed on the outer periphery of one end in the axial direction and that is in sliding contact with the inner peripheral surface of the tube, and a dust lip that is formed in the center. 1. A single-tube hydraulic shock absorber characterized by having a structure in which a covering made of an elastic material and having an elastic membrane is attached to the outer surface of an annular core material having a hole in the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11509387A JPS63280941A (en) | 1987-05-12 | 1987-05-12 | Single cylinder hydraulic buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11509387A JPS63280941A (en) | 1987-05-12 | 1987-05-12 | Single cylinder hydraulic buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63280941A true JPS63280941A (en) | 1988-11-17 |
| JPH0512569B2 JPH0512569B2 (en) | 1993-02-18 |
Family
ID=14654030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11509387A Granted JPS63280941A (en) | 1987-05-12 | 1987-05-12 | Single cylinder hydraulic buffer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63280941A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998000653A3 (en) * | 1996-07-02 | 1998-02-12 | Lord Corp | Controllable vibration apparatus |
| DE10351353A1 (en) * | 2003-07-08 | 2005-02-10 | Thyssenkrupp Bilstein Gmbh | Vibration damper with an amplitude dependent damping effect, in particular, for a vehicle wheel comprises a separation piston with an elastically compliant buffer |
| EP1496285A3 (en) * | 2003-07-08 | 2005-10-12 | ThyssenKrupp Bilstein GmbH | Vibration damper with amplitude-dependent damping |
| JP2007255446A (en) * | 2006-03-20 | 2007-10-04 | Fuji Latex Kk | Shock absorber |
| WO2009063304A1 (en) * | 2007-11-15 | 2009-05-22 | Toyota Jidosha Kabushiki Kaisha | Shock absorber component and shock absorber |
| DE102011083744A1 (en) * | 2011-09-29 | 2013-04-04 | Aktiebolaget Skf | Seal for separating gas volume in monotube damper system of e.g. shock absorber of motorcycle, has seal lips radially resting against cylinder, where seal is formed to be axially movable in cylinder to cause or ease change of gas volume |
| DE102008060515B4 (en) * | 2007-12-05 | 2015-08-06 | Mando Corporation | vibration |
| US9327797B2 (en) | 2011-10-04 | 2016-05-03 | Yamaha Hatsudoki Kabushiki Kaisha | Vehicle shock absorber |
| EP3112720A1 (en) * | 2015-07-01 | 2017-01-04 | Carl Freudenberg KG | Separating piston and single cylinder gas shock absorber with such a separating piston |
| DE102017004478A1 (en) * | 2017-05-10 | 2018-11-15 | Carl Freudenberg Kg | Sealing ring, its use and single-tube gas shock absorber, which includes the sealing ring |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5409272A (en) * | 1993-06-28 | 1995-04-25 | Southco, Inc. | Over-center latch assembly |
-
1987
- 1987-05-12 JP JP11509387A patent/JPS63280941A/en active Granted
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998000653A3 (en) * | 1996-07-02 | 1998-02-12 | Lord Corp | Controllable vibration apparatus |
| US5878851A (en) * | 1996-07-02 | 1999-03-09 | Lord Corporation | Controllable vibration apparatus |
| US7441639B2 (en) | 2003-07-08 | 2008-10-28 | Thyssenkrupp Bilstein Suspension Gmbh | Dashpot with amplitude-dependent shock absorption |
| EP1496285A3 (en) * | 2003-07-08 | 2005-10-12 | ThyssenKrupp Bilstein GmbH | Vibration damper with amplitude-dependent damping |
| DE10351353B4 (en) * | 2003-07-08 | 2005-12-22 | Thyssenkrupp Bilstein Gmbh | Vibration damper with an amplitude dependent damping effect, in particular, for a vehicle wheel comprises a separation piston with an elastically compliant buffer |
| DE10351353A1 (en) * | 2003-07-08 | 2005-02-10 | Thyssenkrupp Bilstein Gmbh | Vibration damper with an amplitude dependent damping effect, in particular, for a vehicle wheel comprises a separation piston with an elastically compliant buffer |
| JP2007255446A (en) * | 2006-03-20 | 2007-10-04 | Fuji Latex Kk | Shock absorber |
| WO2009063304A1 (en) * | 2007-11-15 | 2009-05-22 | Toyota Jidosha Kabushiki Kaisha | Shock absorber component and shock absorber |
| DE102008060515B4 (en) * | 2007-12-05 | 2015-08-06 | Mando Corporation | vibration |
| DE102011083744A1 (en) * | 2011-09-29 | 2013-04-04 | Aktiebolaget Skf | Seal for separating gas volume in monotube damper system of e.g. shock absorber of motorcycle, has seal lips radially resting against cylinder, where seal is formed to be axially movable in cylinder to cause or ease change of gas volume |
| US9327797B2 (en) | 2011-10-04 | 2016-05-03 | Yamaha Hatsudoki Kabushiki Kaisha | Vehicle shock absorber |
| EP3112720A1 (en) * | 2015-07-01 | 2017-01-04 | Carl Freudenberg KG | Separating piston and single cylinder gas shock absorber with such a separating piston |
| DE102015008401A1 (en) * | 2015-07-01 | 2017-01-05 | Carl Freudenberg Kg | Separating piston and monotube gas pressure shock absorber with such a separating piston |
| DE102017004478A1 (en) * | 2017-05-10 | 2018-11-15 | Carl Freudenberg Kg | Sealing ring, its use and single-tube gas shock absorber, which includes the sealing ring |
| DE102017004478B4 (en) | 2017-05-10 | 2019-01-31 | Carl Freudenberg Kg | Sealing ring, its use and single-tube gas shock absorber, which includes the sealing ring |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0512569B2 (en) | 1993-02-18 |
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