JP2002310218A - Bump stopper device of damper for vehicle - Google Patents
Bump stopper device of damper for vehicleInfo
- Publication number
- JP2002310218A JP2002310218A JP2001112447A JP2001112447A JP2002310218A JP 2002310218 A JP2002310218 A JP 2002310218A JP 2001112447 A JP2001112447 A JP 2001112447A JP 2001112447 A JP2001112447 A JP 2001112447A JP 2002310218 A JP2002310218 A JP 2002310218A
- Authority
- JP
- Japan
- Prior art keywords
- damper
- core
- bump stopper
- bump
- shell
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/30—Spring/Damper and/or actuator Units
- B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
- B60G2202/312—The spring being a wound spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/128—Damper mount on vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/418—Bearings, e.g. ball or roller bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/45—Stops limiting travel
- B60G2204/4502—Stops limiting travel using resilient buffer
Landscapes
- Vibration Dampers (AREA)
- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
- Springs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は，車輪支持部材に結
合されるダンパ本体，このダンパ本体内を摺動するピス
トン，このピストンに結合されてダンパ本体の上方に延
びるピストンロッド，及びこのピストンロッドの上端部
に設けられて車体に取り付けられる取り付け板を備える
車両用ダンパに関し，特に，ダンパ本体及び取り付け板
の上下に相対向する一方及び他方の面に，ダンパの収縮
限界近傍で互いに衝合する第１及び第２バンプストッパ
をそれぞれ設けた，車両用ダンパのバンプストッパ装置
の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper body connected to a wheel supporting member, a piston sliding in the damper body, a piston rod connected to the piston and extending above the damper body, and the piston rod. Vehicle damper provided with a mounting plate provided on the upper end of the vehicle and attached to the vehicle body, and in particular, abuts the upper and lower surfaces of the damper body and the mounting plate opposite to each other near the contraction limit of the damper. The present invention relates to an improvement in a bump stopper device for a vehicle damper, which is provided with first and second bump stoppers.
【０００２】[0002]
【従来の技術】従来，かゝる車両用ダンパのバンプスト
ッパ装置として，肉厚が下方に向かって減少する蛇腹状
の弾性バンプストッパを前記取り付け板に取り付け，ダ
ンパが収縮限界に近づいたとき，ダンパ本体がその上端
面により弾性バンプストッパに下方から圧縮変形を与
え，車体に対する突き上げ衝撃を緩和するものが知られ
ている（例えば，特開平１０−６８４３９号公報参
照）。2. Description of the Related Art Conventionally, as a bump stopper device of such a vehicle damper, a bellows-like elastic bump stopper whose wall thickness decreases downward is attached to the mounting plate, and when the damper approaches a shrinkage limit, It is known that a damper body applies compressive deformation from below to an elastic bump stopper by its upper end surface to reduce a thrust impact on a vehicle body (for example, see Japanese Patent Application Laid-Open No. 10-68439).
【０００３】[0003]
【発明が解決しようとする課題】上記従来のものでは，
ダンパの収縮限界近傍での緩衝ストロークを比較的長く
設定する必要があり，ローダウン型サスペンションを備
える車両のダンパには適用が困難である。SUMMARY OF THE INVENTION In the above conventional device,
It is necessary to set a relatively long shock absorbing stroke near the contraction limit of the damper, which is difficult to apply to a damper of a vehicle having a low-down type suspension.
【０００４】本発明は，かゝる事情に鑑みてなされたも
ので，ダンパの収縮限界近傍で比較的短い緩衝ストロー
クをもって車体に対する突き上げ衝撃を違和感なく効果
的に緩和するすることができる，車両用ダンパのバンプ
ストッパ装置を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a relatively short damping stroke near the contraction limit of a damper, and can effectively mitigate a thrust-up impact on a vehicle body without a sense of discomfort. An object of the present invention is to provide a bump stopper device for a damper.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に，本発明は，車輪支持部材に結合されるダンパ本体，
このダンパ本体内を摺動するピストン，このピストンに
結合されてダンパ本体の上方に延びるピストンロッド，
及びこのピストンロッドの上端部に設けられて車体に取
り付けられる取り付け板を備える車両用ダンパにおい
て，ダンパ本体及び取り付け板の上下に相対向する一方
及び他方の面に，ダンパの収縮限界近傍で互いに衝合す
る第１及び第２バンプストッパをそれぞれ設け，その第
１バンプストッパを，比較的硬質の弾性材からなってい
て中空部及びこの中空部を外端面に開放する開口部を有
するシェルと，比較的軟質の弾性材からなっていて前記
中空部及び開口部に充填されたコアとで構成する一方，
第２バンプストッパには，第１バンプストッパの外端面
に対向する当接面及びこの当接面から***して前記開口
部のコアに対向する突起を形成し，第１及び第２バンプ
ストッパの衝合時には，前記突起がコアに食い込み，そ
の後，前記当接面がシェル及びコアを押圧することを第
１の特徴とする。To achieve the above object, the present invention provides a damper body connected to a wheel supporting member,
A piston sliding within the damper body, a piston rod coupled to the piston and extending above the damper body,
And a vehicle damper having a mounting plate provided at the upper end of the piston rod and mounted on the vehicle body, the upper and lower surfaces of the damper body and the mounting plate opposing each other near the shrinking limit of the damper. First and second bump stoppers are provided, and the first bump stopper is compared with a shell made of a relatively hard elastic material and having a hollow portion and an opening opening the hollow portion to the outer end surface. A core made of a relatively soft elastic material and filled in the hollow portion and the opening,
The second bump stopper has an abutting surface facing the outer end surface of the first bump stopper and a projection protruding from the abutting surface facing the core of the opening. The first feature is that, at the time of abutment, the protrusion bites into the core, and then the abutment surface presses the shell and the core.
【０００６】この第１の特徴によれば，第１及び第２バ
ンプストッパの衝合時，前記突起のコアへの食い込み当
初は，反力を比較的緩やかに上昇させ，その食い込み後
半では比較的硬質のシェルを膨張させることにより，反
力を２次曲線的に上昇させ，次いで，前記当接面がシェ
ル及びコアを押圧することにより，反力を連続的に更に
急増させることができる。したがって，比較的短い緩衝
ストロークをもって車体への突き上げ衝撃を違和感なく
効果的に緩和し，乗り心地の向上を図ることができる。According to the first feature, when the first and second bump stoppers abut against each other, the reaction force is relatively gradually increased at the beginning of the engagement of the projection into the core, and is relatively increased in the latter half of the engagement. By expanding the hard shell, the reaction force can be raised in a quadratic curve, and then the reaction force can be continuously and rapidly increased by the contact surface pressing the shell and the core. Therefore, it is possible to effectively mitigate the upward impact on the vehicle body with a relatively short buffer stroke without a sense of incongruity, and to improve the riding comfort.
【０００７】また本発明は，第１の特徴に加えて，前記
シェルの周壁に，前記コアが充填されるアンカ孔を設け
たことを第２の特徴とする。According to a second feature of the present invention, in addition to the first feature, an anchor hole for filling the core is provided in the peripheral wall of the shell.
【０００８】この第２の特徴によれば，アンカ孔が，シ
ェル及びコアの結合力の強化に資する外，突起のコアへ
の食い込み時，コアの圧力逃がしにも役立ち，コアの柔
軟性を高めることができる。According to the second feature, the anchor hole contributes to strengthening of the bonding force between the shell and the core, and also serves to relieve the pressure of the core when the projection bites into the core, thereby enhancing the flexibility of the core. be able to.
【０００９】[0009]
【発明の実施の形態】本発明の実施の形態を，図面に示
す本発明の実施例に基づき以下に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on embodiments of the present invention shown in the drawings.
【００１０】図１は本発明の第１実施例に係る自動車用
油圧ダンパの縦断面図，図２は図１の要部拡大図，図３
は図２に対応した作用説明図，図４は図２の４−４線断
面図，図５は本発明の第２実施例を示す，図２に対応す
る断面図，図６は本発明のバンプストッパ装置の緩衝特
性線図である。FIG. 1 is a longitudinal sectional view of a hydraulic damper for an automobile according to a first embodiment of the present invention, FIG. 2 is an enlarged view of a main part of FIG. 1, and FIG.
2 is an operation explanatory view corresponding to FIG. 2, FIG. 4 is a sectional view taken along line 4-4 of FIG. 2, FIG. 5 shows a second embodiment of the present invention, a sectional view corresponding to FIG. It is a buffer characteristic diagram of a bump stopper device.
【００１１】先ず，図１〜図４に示す本発明の第１実施
例の説明から始める。図１及び図２において，自動車の
車体Ｂと車輪支持部材Ａ間に油圧ダンパＤが介裝され
る。この油圧ダンパＤのダンパ本体１は，下端を閉塞し
たアウタシリンダ２と，このアウタシリンダ２内に配設
されるインナシリンダ３と，このインナシリンダ３の下
端に固着されてアウタシリンダ２の底壁に支持される隔
壁体４と，インナシリンダ３の上端に結合されると共に
アウタシリンダ２の内周面に支承される摺動軸受体５
と，この摺動軸受体５の上端面当接しながらアウタシリ
ンダ２の上端部内周面に油密に嵌合する栓体６と，アウ
タシリンダ２の上端部外周に嵌着されて栓体６を覆うキ
ャップ７とで構成され，隔壁体４及び摺動軸受体５は協
働して両シリンダ２，３を相互に同心状に保持する。First, a description will be given of the first embodiment of the present invention shown in FIGS. 1 and 2, a hydraulic damper D is interposed between a vehicle body B and a wheel supporting member A of an automobile. The damper body 1 of the hydraulic damper D includes an outer cylinder 2 having a lower end closed, an inner cylinder 3 disposed in the outer cylinder 2, and a bottom wall of the outer cylinder 2 fixed to the lower end of the inner cylinder 3. And a sliding bearing member 5 coupled to the upper end of the inner cylinder 3 and supported on the inner peripheral surface of the outer cylinder 2.
And a plug 6 which is fitted on the inner peripheral surface of the upper end of the outer cylinder 2 in an oil-tight manner while being in contact with the upper end surface of the sliding bearing 5, and the plug 6 which is fitted on the outer periphery of the upper end of the outer cylinder 2. The partition 4 and the sliding bearing 5 cooperate to hold the cylinders 2 and 3 concentrically with each other.
【００１２】インナシリンダ３には，その内部を上部油
室１０及び下部油室１１に区画するピストン１２が摺動
可能に嵌装され，このピストン１２の中心部に結合した
ピストンロッド１３が摺動軸受体５に摺動自在に支承さ
れながら栓体６及びキャップ７を貫通して上方に延びて
いる。ピストン１２には，これがインナシリンダ３内を
昇降する際，上部及び下部油室１０，１１間での作動油
の流通を許容する油路１４と，この油路１４を通過する
作動油に抵抗を与えて減衰力を発生する公知の主緩衝弁
１５とが設けられる。また隔壁体４にも，下部油室１１
と両シリンダ２，３間の外側室１６との間での作動油の
流通を許容する油路１７と，この油路１７を通過する作
動油に抵抗を与えて減衰力を発生する公知の補助緩衝弁
１８とが設けられる。A piston 12 for partitioning the inner cylinder 3 into an upper oil chamber 10 and a lower oil chamber 11 is slidably fitted in the inner cylinder 3, and a piston rod 13 connected to the center of the piston 12 slides. It extends upward through the plug 6 and the cap 7 while being slidably supported by the bearing 5. When the piston 12 moves up and down in the inner cylinder 3, an oil passage 14 that allows the flow of the hydraulic oil between the upper and lower oil chambers 10 and 11 and a resistance to the hydraulic oil passing through the oil passage 14 are formed. A well-known main buffer valve 15 for generating a damping force is provided. The lower oil chamber 11 is also provided on the partition 4.
And an oil passage 17 for permitting the flow of hydraulic oil between the outer chamber 16 between the two cylinders 2 and 3, and a known auxiliary for generating a damping force by applying resistance to the hydraulic oil passing through the oil passage 17 A buffer valve 18 is provided.
【００１３】ダンパ本体１外に突出したピストンロッド
１３の上端部は一段細くなっており，その部分に弾性マ
ウント部材２０を介して取り付け板２１が取り付けら
れ，この取り付け板２１と，アウタシリンダ２の外周に
溶接したフランジ板２２との間に，油圧ダンパＤを伸長
方向に付勢するコイル状の懸架ばね２３が縮設される。
そして取り付け板２１が車体Ｂにボルト結合され，アウ
タシリンダ２の下端部が，車体Ｂに上下揺動自在に軸支
される車輪支持部材Ａに連結される。The upper end of the piston rod 13 protruding out of the damper body 1 is one step narrower, and a mounting plate 21 is mounted on the upper end via an elastic mounting member 20. The mounting plate 21 and the outer cylinder 2 Between the flange plate 22 welded to the outer periphery, a coil-shaped suspension spring 23 for urging the hydraulic damper D in the extension direction is contracted.
The mounting plate 21 is bolted to the vehicle body B, and the lower end of the outer cylinder 2 is connected to a wheel support member A that is pivotally supported by the vehicle body B so as to be vertically swingable.
【００１４】上記取り付け板２１とダンパ本体１との間
に，油圧ダンパＤの収縮限界を緩衝的に規制する本発明
のバンプストッパ装置２５が設けられ，それはダンパ本
体１の上端，即ちキャップ７の上端に溶接された支持板
２８に取り付けられる第１バンプストッパ２６と，取り
付け板２１に取り付けられる第２バンプストッパ２７と
で構成される。Between the mounting plate 21 and the damper body 1, there is provided a bump stopper device 25 of the present invention for buffering the shrinkage limit of the hydraulic damper D. It comprises a first bump stopper 26 attached to a support plate 28 welded to the upper end, and a second bump stopper 27 attached to the attachment plate 21.
【００１５】第１バンプストッパ２６は，比較的硬質の
弾性材からなる中空ドーナツ状のシェル２９と，比較的
軟質の弾性材からなり，シェル２９の環状中空部３０に
充填されてシェル２９に結合されるコア３１とから構成
される。中空部３０は，シェル２９の上面に開口する環
状の開口部３０ａ（図４参照）を有しており，コア３１
はその開口部３０ａまで埋め尽くしていて，シェル２９
の上面と面一になっている。シェル２９は，支持板２８
上に載置され，そして，シェル２９の下端部周縁の環状
係止部２９ａを支持板２８の外周縁に嵌め込むことによ
り支持板２８に取り付けられる。The first bump stopper 26 is formed of a hollow donut-shaped shell 29 made of a relatively hard elastic material, and made of a relatively soft elastic material. The first bump stopper 26 is filled in the annular hollow portion 30 of the shell 29 and joined to the shell 29. And a core 31 to be formed. The hollow portion 30 has an annular opening 30a (see FIG. 4) opening on the upper surface of the shell 29, and the core 31
Is filled up to the opening 30a, and the shell 29
It is flush with the upper surface of. The shell 29 is a support plate 28
It is mounted on the support plate 28 and is attached to the support plate 28 by fitting an annular locking portion 29 a at the periphery of the lower end of the shell 29 to the outer periphery of the support plate 28.
【００１６】一方，第２バンプストッパ２７は，弾性マ
ウント部材２０を介して取り付け板２１に連結される基
板３２と，前記コア３１より硬質の弾性材からなり，こ
の基板３２の下面に接合された緩衝体３３とで構成され
る。この緩衝体３３の下面が第１バンプストッパ２６の
上端面に対向する当接面３４になっており，この当接面
３４に，前記開口部３０ａのコア３１に対向する環状
の，もしくは環状配列の突起３５が形成され，油圧ダン
パＤの収縮限界近傍で，この突起３５が前記コア３１に
衝合し，食い込むようになっている。On the other hand, the second bump stopper 27 is made of a substrate 32 connected to the mounting plate 21 via the elastic mounting member 20 and an elastic material harder than the core 31 and is joined to the lower surface of the substrate 32. And a buffer 33. The lower surface of the buffer 33 is a contact surface 34 facing the upper end surface of the first bump stopper 26. The contact surface 34 has an annular shape or an annular array facing the core 31 of the opening 30a. The protrusion 35 is formed near the contraction limit of the hydraulic damper D, and the protrusion 35 abuts against the core 31 and bites there.
【００１７】また緩衝体３３の下端部外周縁には，第１
バンプストッパ２６及びアウタシリンダ２の上半部外周
を覆って防塵，防水を図る薄肉のブーツ３６が一体に連
設される。このブーツ３６の下端部はフランジ３６ａに
形成され，前記フランジ板２２と懸架ばね２３とで挟持
される。またブーツ３６の中間部には，伸縮可能の蛇腹
３６ｂが形成され，油圧ダンパＤの伸縮に応じてブーツ
３６が伸縮し得るようになっている。A first outer peripheral edge of the buffer 33 is
A thin boot 36 that covers the bump stopper 26 and the outer periphery of the upper half of the outer cylinder 2 to prevent dust and waterproof is integrally connected. The lower end of the boot 36 is formed on a flange 36 a and is sandwiched between the flange plate 22 and the suspension spring 23. An extendable bellows 36b is formed at an intermediate portion of the boot 36, so that the boot 36 can expand and contract in accordance with expansion and contraction of the hydraulic damper D.
【００１８】次に，この第１実施例の作用について説明
する。Next, the operation of the first embodiment will be described.
【００１９】自動車の悪路走行時，図示しない車輪の上
下振動に伴い車輪支持部材Ａが車体Ｂに対して上下に揺
動すると，懸架ばね２３及び油圧ダンパＤに伸縮運動が
与えられ，ピストン１２がインナシリンダ３内を昇降す
る。その際，インナシリンダ３内の上部及び下部油室１
１間ではピストン１２の油路１４及び主緩衝弁１５を通
して，また下部油室１１及び外側室１６間では隔壁体４
の油路１７及び補助緩衝弁１８を通して作動油が流通す
ることにより減衰力が発生し，車輪の上下振動を緩衝す
る。When the vehicle is running on a rough road, the wheel supporting member A swings up and down with respect to the vehicle body B due to the vertical vibration of the wheels (not shown), so that the suspension spring 23 and the hydraulic damper D expand and contract, and the piston 12 Moves up and down in the inner cylinder 3. At this time, the upper and lower oil chambers 1 in the inner cylinder 3
1 between the lower oil chamber 11 and the outer chamber 16 through the oil passage 14 of the piston 12 and the main buffer valve 15.
The hydraulic oil flows through the oil passage 17 and the auxiliary buffer valve 18 to generate a damping force, thereby damping the vertical vibration of the wheels.
【００２０】ところが，懸架ばね２３の反発力及び上記
減衰力を超える過度の突き上げ力が車輪に作用して，油
圧ダンパＤが収縮限界に近づいた場合には，先ず第２バ
ンプストッパ２７の突起３５が第１バンプストッパ２６
のコア３１の上面に衝合する。その突起３５はコア３１
より硬質であるため，コア３１に比較的容易に食い込ん
でいき，その食い込み量の増加により，コア３１より硬
質のシェル２９が膨張する（図３参照）。その結果，突
起３５のコア３１への食い込みに応じて発生する反力
は，当初，図６の線ａ−ｂに示すように比較的緩やかに
上昇し，後半になって２次曲線的に急増することにな
る。However, when the repulsive force of the suspension spring 23 and the excessive pushing force exceeding the damping force act on the wheels and the hydraulic damper D approaches the contraction limit, first, the protrusion 35 of the second bump stopper 27 is required. Is the first bump stopper 26
Abut on the upper surface of the core 31. The protrusion 35 is the core 31
Since it is harder, it penetrates into the core 31 relatively easily, and the shell 29, which is harder than the core 31, expands due to an increase in the bite amount (see FIG. 3). As a result, the reaction force generated in response to the protrusion 35 biting into the core 31 initially rises relatively slowly as shown by the line ab in FIG. 6, and rapidly increases in the second half in a quadratic curve. Will do.
【００２１】突起３５がコア３１に完全に食い込むと，
今度は第２バンプストッパ２７の当接面３４が第１バン
プストッパ２６の上端面に衝合し，両バンプストッパ２
６，２７全体が圧縮され，反力が図６の線ｂ−ｃに示す
ように更に増加するが，前記線ａ−ｂの後半が２次曲線
的に立ち上がるので，勾配の急な線ｂ−ｃは線ａ−ｂに
滑らかに連続することになる。したがって，油圧ダンパ
Ｄの収縮限界近傍において，極めて短い緩衝ストローク
をもって，車体Ｂへの突き上げ衝撃を違和感なく効果的
に緩和し，乗り心地の向上を図ることができるから，特
に，油圧ダンパＤのストロークを充分に確保することが
困難なローダウン型サスペンションを備える車両にこれ
を適用して有効である。When the projection 35 has completely dig into the core 31,
This time, the contact surface 34 of the second bump stopper 27 abuts against the upper end surface of the first bump stopper 26, and both bump stoppers 2
6 and 27 are compressed, and the reaction force further increases as shown by the line bc in FIG. 6, but since the latter half of the line ab rises in a quadratic curve, the steep line b- c will smoothly follow the line ab. Therefore, in the vicinity of the contraction limit of the hydraulic damper D, it is possible to effectively mitigate the thrusting impact on the vehicle body B with an extremely short buffer stroke without discomfort and to improve the ride comfort. This is effective when applied to a vehicle having a low-down type suspension in which it is difficult to sufficiently secure the vehicle.
【００２２】またコア３１やシェル２９の弾性率を異に
する複数の第１バンプストッパ２６を用意し，また突起
３５の形状を異にする複数の第２バンプストッパ２７を
用意し，それらを選択的に組み合わせれば，種々の特性
のバンプストッパ装置２５を得ることができる。A plurality of first bump stoppers 26 having different elastic moduli of the core 31 and the shell 29 are prepared, and a plurality of second bump stoppers 27 having different shapes of the projections 35 are prepared and selected. If combined, it is possible to obtain bump stopper devices 25 having various characteristics.
【００２３】次に，図５に示す本発明の第２実施例につ
いて説明する。Next, a second embodiment of the present invention shown in FIG. 5 will be described.
【００２４】この第２実施例では，第１バンプストッパ
２６及び第２バンプストッパ２７の配置が上記第１実施
例の場合と反対になっている。即ち，基板３２に結合さ
れた緩衝体３３に，コア３１を充填したシェル２９が形
成され，キャップ７と一体の支持板２８に環状係止部２
７ａを介して取り付けられる第２バンプストッパ２７に
当接面３４及び突起３５が形成される。In the second embodiment, the arrangement of the first bump stopper 26 and the second bump stopper 27 is opposite to that of the first embodiment. That is, a shell 29 filled with a core 31 is formed in a buffer 33 coupled to a substrate 32, and a ring-shaped locking portion 2 is formed on a support plate 28 integral with the cap 7.
The contact surface 34 and the projection 35 are formed on the second bump stopper 27 that is attached via 7a.
【００２５】またこの第２実施例の第１バンプストッパ
２６では，シェル２９の周壁に中空部３０に達する複数
のアンカ孔４０が設けられ，コア３１は，これらアンカ
孔４０にも充填，結合される。このアンカ孔４０は，シ
ェル２９及びコア３１の結合力の強化に資する外，突起
３５のコア３１への食い込み時，コア３１の圧力逃がし
にも役立ち，コア３１の柔軟性を高めることができる。
またコア３１の成形時には，このアンカ孔４０を利用し
て，コア３１の素材の注入又はガス抜きを行うことがで
きる。Further, in the first bump stopper 26 of the second embodiment, a plurality of anchor holes 40 reaching the hollow portion 30 are provided on the peripheral wall of the shell 29, and the core 31 is also filled and connected to these anchor holes 40. You. The anchor hole 40 not only contributes to strengthening the bonding force between the shell 29 and the core 31 but also helps to release the pressure of the core 31 when the protrusion 35 bites into the core 31, thereby increasing the flexibility of the core 31.
Further, at the time of molding the core 31, the material of the core 31 can be injected or degassed using the anchor holes 40.
【００２６】その他の構成は，上記第１実施例と同様で
あるので，図５中，第１実施例との対応部分には同一の
参照符号を付して，その説明を省略する。またその作用
効果も，基本的に第１実施例と変わりがないので，その
説明も省略する。Since other structures are the same as those of the first embodiment, the same reference numerals in FIG. 5 denote the same parts as in the first embodiment, and a description thereof will be omitted. The operation and effect are basically the same as those of the first embodiment, and therefore, the description thereof is omitted.
【００２７】本発明は，上記実施例に限定されるもので
はなく，その要旨を逸脱しない範囲で種々の設計変更が
可能である。例えば，第２実施例のアンカ孔４０は，第
１実施例の第１バンプストッパ２６に設けることもでき
る。The present invention is not limited to the embodiment described above, and various design changes can be made without departing from the gist of the present invention. For example, the anchor hole 40 of the second embodiment can be provided in the first bump stopper 26 of the first embodiment.
【００２８】[0028]
【発明の効果】以上のように本発明の第１の特徴によれ
ば，車輪支持部材に結合されるダンパ本体，このダンパ
本体内を摺動するピストン，このピストンに結合されて
ダンパ本体の上方に延びるピストンロッド，及びこのピ
ストンロッドの上端部に設けられて車体に取り付けられ
る取り付け板を備える車両用ダンパにおいて，ダンパ本
体及び取り付け板の上下に相対向する一方及び他方の面
に，ダンパの収縮限界近傍で互いに衝合する第１及び第
２バンプストッパをそれぞれ設け，その第１バンプスト
ッパを，比較的硬質の弾性材からなっていて中空部及び
この中空部を外端面に開放する開口部を有するシェル
と，比較的軟質の弾性材からなっていて前記中空部及び
開口部に充填されたコアとで構成する一方，第２バンプ
ストッパには，第１バンプストッパの外端面に対向する
当接面及びこの当接面から***して前記開口部のコアに
対向する突起を形成し，第１及び第２バンプストッパの
衝合時には，前記突起がコアに食い込み，その後，前記
当接面がシェル及びコアを押圧するので，比較的短い緩
衝ストロークをもって車体への突き上げ衝撃を違和感な
く効果的に緩和し，乗り心地の向上を図ることができ
る。As described above, according to the first aspect of the present invention, a damper body connected to a wheel support member, a piston sliding in the damper body, and a piston connected to the piston and above the damper body. A damper for a vehicle, comprising a piston rod extending to an end of the piston rod and a mounting plate provided on an upper end portion of the piston rod and mounted on a vehicle body, the damper body and the mounting plate being shrunk on one and the other surface opposite to the upper and lower surfaces. First and second bump stoppers which abut each other near the limit are provided, and the first bump stopper is formed of a relatively hard elastic material and has a hollow portion and an opening for opening the hollow portion to the outer end surface. And a core made of a relatively soft elastic material and filled in the hollow portion and the opening, while a second bump stopper has a first bump stopper. A contact surface facing the outer end surface of the bump stopper and a protrusion protruding from the contact surface to form a protrusion facing the core of the opening, and the protrusion bites into the core when the first and second bump stoppers abut. Then, since the contact surface presses the shell and the core, the thrust to the vehicle body can be effectively alleviated with a relatively short shock-absorbing stroke without discomfort, and the riding comfort can be improved.
【００２９】また本発明の第２の特徴によれば，第１の
特徴に加えて，前記シェルの周壁に，前記コアが充填さ
れるアンカ孔を設けたので，アンカ孔が，シェル及びコ
アの結合力の強化に資する外，突起のコアへの食い込み
時，コアの圧力逃がしにも役立ち，コアの柔軟性を高め
ることができる。According to the second aspect of the present invention, in addition to the first aspect, an anchor hole for filling the core is provided in the peripheral wall of the shell. In addition to contributing to the strengthening of the bonding force, it also helps to relieve the pressure of the core when the projections bite into the core, thereby increasing the flexibility of the core.
【図１】本発明の第１実施例に係る自動車用油圧ダンパ
の縦断面図。FIG. 1 is a longitudinal sectional view of an automotive hydraulic damper according to a first embodiment of the present invention.
【図２】図１の要部拡大図。FIG. 2 is an enlarged view of a main part of FIG.
【図３】図２に対応した作用説明図。FIG. 3 is an operation explanatory view corresponding to FIG. 2;
【図４】図２の４−４線断面図。FIG. 4 is a sectional view taken along line 4-4 of FIG. 2;
【図５】本発明の第２実施例を示す，図２に対応する断
面図。FIG. 5 is a sectional view corresponding to FIG. 2, showing a second embodiment of the present invention;
【図６】本発明のバンプストッパ装置の緩衝特性線図。FIG. 6 is a buffer characteristic diagram of the bump stopper device of the present invention.
Ａ・・・・車輪支持部材 Ｂ・・・・車体 Ｄ・・・・ダンパ（油圧ダンパ） １・・・・ダンパ本体 １２・・・ピストン １３・・・ピストンロッド ２１・・・取り付け板 ２５・・・バンプストッパ装置 ２６・・・第１バンプストッパ ２７・・・第２バンプストッパ ２９・・・シェル ３０・・・中空部 ３０ａ・・開口部 ３１・・・コア ３４・・・当接面 ３５・・・突起 ４０・・・アンカ孔 A: Wheel support member B: Body D: Damper (hydraulic damper) 1: Damper body 12: Piston 13: Piston rod 21: Mounting plate 25 ··· Bump stopper device 26 ··· First bump stopper 27 ··· Second bump stopper 29 ··· Shell 30 ··· Hollow part 30a ··· Opening 31 ··· Core 34 ··· Contact surface 35 ... Projection 40 ... Anchor hole
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ１６Ｆ 7/00 Ｆ１６Ｆ 9/54 9/54 Ｂ６０Ｇ 15/06 // Ｂ６０Ｇ 15/06 Ｆ１６Ｆ 9/32 Ｅ Ｆターム(参考） 3D001 AA02 AA18 DA03 3J059 AA04 BA01 BA41 BA54 BB03 BB09 BD01 CA02 CB09 GA02 3J066 AA07 AA22 BA01 BB01 BC01 BD01 BD05 BE08 3J069 AA50 CC06 CC07 DD39 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) F16F 7/00 F16F 9/54 9/54 B60G 15/06 // B60G 15/06 F16F 9/32 EF Terms (reference) 3D001 AA02 AA18 DA03 3J059 AA04 BA01 BA41 BA54 BB03 BB09 BD01 CA02 CB09 GA02 3J066 AA07 AA22 BA01 BB01 BC01 BD01 BD05 BE08 3J069 AA50 CC06 CC07 DD39
Claims (2)
本体（１），このダンパ本体（１）内を摺動するピスト
ン（１２），このピストン（１２）に結合されてダンパ
本体（１）の上方に延びるピストンロッド（１３），及
びこのピストンロッド（１３）の上端部に設けられて車
体（Ｂ）に取り付けられる取り付け板（２１）を備える
車両用ダンパ（Ｄ）において，ダンパ本体（１）及び取
り付け板（２１）の上下に相対向する一方及び他方の面
に，ダンパ（Ｄ）の収縮限界近傍で互いに衝合する第１
及び第２バンプストッパ（２６，２７）をそれぞれ設
け，その第１バンプストッパ（２６）を，比較的硬質の
弾性材からなっていて中空部（３０）及びこの中空部
（３０）を外端面に開放する開口部（３０ａ）を有する
シェル（２９）と，比較的軟質の弾性材からなっていて
前記中空部（３０）及び開口部（３０ａ）に充填された
コア（３１）とで構成する一方，第２バンプストッパ
（２７）には，第１バンプストッパ（２６）の外端面に
対向する当接面（３４）及びこの当接面から***して前
記開口部（３０ａ）のコア（３１）に対向する突起（３
５）を形成し，第１及び第２バンプストッパ（２６，２
７）の衝合時には，前記突起（３５）がコア（３１）に
食い込み，その後，前記当接面（３４）がシェル（２
９）及びコア（３１）を押圧することを特徴とする，車
両用ダンパのバンプストッパ装置。1. A damper body (1) connected to a wheel supporting member (A), a piston (12) sliding in the damper body (1), and a damper body (1) connected to the piston (12). ), A damper body (D) including a piston rod (13) extending upward and a mounting plate (21) provided at an upper end of the piston rod (13) and mounted to a vehicle body (B). 1) and first and second surfaces opposed to each other on the upper and lower sides of the mounting plate (21) in contact with each other in the vicinity of the contraction limit of the damper (D).
And a second bump stopper (26, 27). The first bump stopper (26) is made of a relatively hard elastic material and has a hollow portion (30) and the hollow portion (30) on the outer end surface. A shell (29) having an opening (30a) to be opened, and a core (31) made of a relatively soft elastic material and filled in the hollow (30) and the opening (30a). , A second bump stopper (27), a contact surface (34) facing the outer end surface of the first bump stopper (26), and a core (31) of the opening (30a) protruding from the contact surface. (3)
5), and forming the first and second bump stoppers (26, 2).
At the time of abutment of 7), the projections (35) bite into the core (31), and then the abutment surface (34) is connected to the shell (2).
9) A bump stopper device for a vehicle damper, wherein the bump stopper device presses a core and a core (31).
トッパ装置において，前記シェル（２９）の周壁に，前
記コア（３１）が充填されるアンカ孔（４０）を設けた
ことを特徴とする，車両用ダンパのバンプストッパ装
置。2. The bump stopper device for a vehicle damper according to claim 1, wherein an anchor hole (40) filled with the core (31) is provided in a peripheral wall of the shell (29). ， Bump stopper device for vehicle damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001112447A JP3975062B2 (en) | 2001-04-11 | 2001-04-11 | Bump stopper device for vehicle damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001112447A JP3975062B2 (en) | 2001-04-11 | 2001-04-11 | Bump stopper device for vehicle damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002310218A true JP2002310218A (en) | 2002-10-23 |
| JP3975062B2 JP3975062B2 (en) | 2007-09-12 |
Family
ID=18963861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001112447A Expired - Fee Related JP3975062B2 (en) | 2001-04-11 | 2001-04-11 | Bump stopper device for vehicle damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3975062B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2005044391A1 (en) * | 2003-11-06 | 2005-05-19 | Tanren Co., Ltd. | Training machine |
| JP2007009968A (en) * | 2005-06-29 | 2007-01-18 | Kayaba Ind Co Ltd | Cushioning structure |
| EP1842701A1 (en) * | 2006-04-07 | 2007-10-10 | Ford Global Technologies, LLC | Strut mount assembly |
| DE102006026822A1 (en) * | 2006-06-09 | 2007-12-20 | Audi Ag | Motor vehicle shock absorber, with a tube to take the piston rod from the vehicle, has additional elastomer and plate springs between the vehicle structure and the tube for rough ground |
| WO2008141697A1 (en) * | 2007-05-23 | 2008-11-27 | Progress-Werk Oberkirch Ag | Method for producing a component made of metal, particularly for a head bearing housing of a shock strut, and such a component |
| JP2009030731A (en) * | 2007-07-27 | 2009-02-12 | Nissan Motor Co Ltd | Shock absorber |
| CN101837717A (en) * | 2009-02-25 | 2010-09-22 | 通用汽车环球科技运作公司 | Vehicular jounce bumper assembly |
| CN104696405A (en) * | 2013-12-06 | 2015-06-10 | 通用汽车环球科技运作有限责任公司 | Systems and methods for damper having an insert |
| DE102014206756A1 (en) * | 2014-04-08 | 2015-10-08 | Bayerische Motoren Werke Aktiengesellschaft | Spring arrangement for a vehicle |
| DE102016216009A1 (en) | 2016-08-25 | 2018-03-01 | Volkswagen Aktiengesellschaft | Buffer assembly of elastomeric material for placement between a vibration damper and a damper bearing a suspension of a motor vehicle |
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2001
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101085384B1 (en) * | 2003-11-06 | 2011-11-21 | 가부시키가이샤 탄렌 | Training machine |
| WO2005044391A1 (en) * | 2003-11-06 | 2005-05-19 | Tanren Co., Ltd. | Training machine |
| US8187155B2 (en) | 2003-11-06 | 2012-05-29 | Tanren Co., Ltd. | Training machine |
| CN100515526C (en) * | 2003-11-06 | 2009-07-22 | 株式会社锻炼 | Training machine |
| JP2007009968A (en) * | 2005-06-29 | 2007-01-18 | Kayaba Ind Co Ltd | Cushioning structure |
| JP4579780B2 (en) * | 2005-06-29 | 2010-11-10 | カヤバ工業株式会社 | Cushion structure |
| EP1842701A1 (en) * | 2006-04-07 | 2007-10-10 | Ford Global Technologies, LLC | Strut mount assembly |
| DE102006026822A1 (en) * | 2006-06-09 | 2007-12-20 | Audi Ag | Motor vehicle shock absorber, with a tube to take the piston rod from the vehicle, has additional elastomer and plate springs between the vehicle structure and the tube for rough ground |
| DE102006026822B4 (en) * | 2006-06-09 | 2011-12-01 | Audi Ag | Vibration damper for a vehicle |
| WO2008141697A1 (en) * | 2007-05-23 | 2008-11-27 | Progress-Werk Oberkirch Ag | Method for producing a component made of metal, particularly for a head bearing housing of a shock strut, and such a component |
| JP2009030731A (en) * | 2007-07-27 | 2009-02-12 | Nissan Motor Co Ltd | Shock absorber |
| CN101837717A (en) * | 2009-02-25 | 2010-09-22 | 通用汽车环球科技运作公司 | Vehicular jounce bumper assembly |
| DE102010008466C5 (en) * | 2009-02-25 | 2020-12-24 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Suspension stop assembly for a vehicle |
| CN104696405A (en) * | 2013-12-06 | 2015-06-10 | 通用汽车环球科技运作有限责任公司 | Systems and methods for damper having an insert |
| DE102014117752B4 (en) | 2013-12-06 | 2022-05-19 | Gm Global Technology Operations, Llc | Systems and methods for a damper with an insert |
| DE102014206756A1 (en) * | 2014-04-08 | 2015-10-08 | Bayerische Motoren Werke Aktiengesellschaft | Spring arrangement for a vehicle |
| DE102016216009A1 (en) | 2016-08-25 | 2018-03-01 | Volkswagen Aktiengesellschaft | Buffer assembly of elastomeric material for placement between a vibration damper and a damper bearing a suspension of a motor vehicle |
| DE102016216009B4 (en) | 2016-08-25 | 2020-07-09 | Volkswagen Aktiengesellschaft | Buffer arrangement made of elastomer material for arrangement between a vibration damper and a damper bearing of a wheel suspension of a motor vehicle |
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| JP3975062B2 (en) | 2007-09-12 |
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