JPH06229437A - Bound bumper of vehicular suspension - Google Patents
Bound bumper of vehicular suspensionInfo
- Publication number
- JPH06229437A JPH06229437A JP1364093A JP1364093A JPH06229437A JP H06229437 A JPH06229437 A JP H06229437A JP 1364093 A JP1364093 A JP 1364093A JP 1364093 A JP1364093 A JP 1364093A JP H06229437 A JPH06229437 A JP H06229437A
- Authority
- JP
- Japan
- Prior art keywords
- bumper
- base body
- load input
- bumper base
- stiffness
- 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
- 239000000725 suspension Substances 0.000 title claims description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 239000006096 absorbing agent Substances 0.000 description 7
- 230000035939 shock Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車両用サスペンション
に用いられて、ショックアブソーバの過大変位を弾性的
に規制するバウンドバンパに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bound bumper which is used in a vehicle suspension and elastically restrains an excessive displacement of a shock absorber.
【０００２】[0002]
【従来の技術】車両用サスペンションとして、ショック
アブソーバのシリンダの下端をホイール側部材に取り付
ける一方で、このシリンダから延出するロッドの上端を
車体側部材に取り付け、このロッドの上部側に、ショッ
クアブソーバの過大変位を弾性的に規制するためのバウ
ンドバンパを取り付けるようにしたものがある。2. Description of the Related Art As a suspension for a vehicle, the lower end of a cylinder of a shock absorber is attached to a wheel side member, while the upper end of a rod extending from this cylinder is attached to a vehicle body side member, and the shock absorber is attached to the upper side of the rod. There is one that is equipped with a bound bumper for elastically restricting the excessive displacement of.
【０００３】このようなサスペンションに用いられるバ
ウンドバンパとして、従来、図５に示すようなものが案
出されている。As a bound bumper used for such a suspension, a bound bumper as shown in FIG. 5 has been conventionally devised.
【０００４】このバウンドバンパ１０は、バンパ基体１
が弾性部材によって蛇腹円筒状に形成され、このバンパ
基体１の大径部２の外周側に剛性リング３が埋設された
概略構造となっており、バンパ基体１の上端がブラケッ
ト４を介してロッド５の上部に取り付けられ、ショック
アブソーバ６が圧縮され、所定量変位したときに、シリ
ンダ７の端面がバンパ基体１の下端に当接するようにな
っている。ここで、剛性リング３はバンパ基体１の外径
方向の膨出を抑制し、バンパ基体１が軸方向に所定長圧
縮された後に機能して荷重入力後期におけるばね剛性
（ばね定数）を高めるようになっている。つまり、この
バウンドバンパ１０は、荷重入力初期にはバンパ基体１
の蛇腹形状によって低いばね剛性を得、荷重入力後期に
は剛性リング３によってより高いばね剛性を得るような
っている。This bound bumper 10 is a bumper base 1.
Is formed in a bellows cylindrical shape by an elastic member, and a rigid ring 3 is embedded on the outer peripheral side of the large diameter portion 2 of the bumper base body 1. The upper end of the bumper base body 1 is a rod via a bracket 4. 5, the shock absorber 6 is compressed, and when the shock absorber 6 is displaced by a predetermined amount, the end surface of the cylinder 7 comes into contact with the lower end of the bumper base 1. Here, the rigid ring 3 suppresses the bulging of the bumper base body 1 in the outer diameter direction, and functions after the bumper base body 1 has been compressed in the axial direction by a predetermined length to enhance the spring rigidity (spring constant) in the latter stage of load input. It has become. In other words, this bound bumper 10 has the bumper base 1 at the initial stage of load input.
A low spring rigidity is obtained by the bellows shape and a higher spring rigidity is obtained by the rigidity ring 3 in the latter stage of load input.
【０００５】尚、この類似技術は、例えば、実開昭６１
−２０３８０７号公報や同６２−１１００６号公報等に
開示されている。[0005] Incidentally, this similar technique is disclosed in, for example, Shokai Sho 61.
-203807 and 62-11006, etc. are disclosed.
【０００６】[0006]
【発明が解決しようとする課題】一般に、バウンドバン
パにおいてはサスペンションの機能上、荷重入力後期の
ばね剛性が高く、荷重入力初期の低ばね剛性となるスト
ロークが充分に長いことが望ましいが、上記従来のバウ
ンドバンパ１０においては、荷重入力後期におけるばね
剛性を高めようとすると、バンパ基体１に埋設する剛性
リング３の軸方向長さが長くなるため、バンパ基体１の
蛇腹形状部分が短くなって低ばね剛性のストロークを充
分に確保できなくなる。Generally, in the bound bumper, it is desirable that the spring stiffness in the latter half of load input is high and the stroke to be low spring stiffness in the initial load input is sufficiently long because of the function of the suspension. In the bound bumper 10, when the spring rigidity in the latter stage of load input is attempted to be increased, the axial length of the rigid ring 3 embedded in the bumper base body 1 becomes longer, so that the bellows-shaped portion of the bumper base body 1 becomes shorter and lower. The stroke of spring rigidity cannot be secured sufficiently.
【０００７】そこで本発明は、荷重入力後期のばね剛性
を高め、しかも、荷重入力初期の低ばね剛性となるスト
ロークを充分に確保することができる車両用サスペンシ
ョンのバウンドバンパを提供しようとするものである。Therefore, the present invention is intended to provide a bound bumper for a vehicle suspension which can increase the spring rigidity in the latter half of load input and can sufficiently secure a stroke having a low spring rigidity in the initial load input. is there.
【０００８】[0008]
【課題を解決するための手段】本発明は上述した課題を
解決するための手段として、弾性部材によって蛇腹円筒
状に形成されたバンパ基体の大径部に剛性リングが取り
付けられて成る車両用サスペンションのバウンドバンパ
において、前記剛性リングを、バンパ基体に対する埋設
部と、この埋設部から前記大径部の外周面に沿って軸方
向に延出する円筒部とから構成するようにした。As a means for solving the above-mentioned problems, the present invention provides a vehicle suspension in which a rigid ring is attached to a large diameter portion of a bumper base body formed in a bellows cylindrical shape by an elastic member. In the bound bumper, the rigid ring is composed of an embedded portion with respect to the bumper base body and a cylindrical portion axially extending from the embedded portion along the outer peripheral surface of the large diameter portion.
【０００９】[0009]
【作用】荷重入力後期には剛性リングの埋設部に加えて
円筒部がバンパ基体の外径方向への膨出を抑制してばね
剛性を急激に高める。また、バンパ基体に埋設されるの
は剛性リングの埋設部だけであるため、剛性リングがバ
ンパ基体の蛇腹形状部分を短くすることはなく、荷重入
力初期の低ばね剛性は充分なストローク確保される。In the latter stage of load input, the cylindrical portion, in addition to the embedded portion of the rigid ring, suppresses the bulging of the bumper base body in the outer diameter direction, and the spring rigidity is sharply increased. Further, since only the embedded portion of the rigid ring is embedded in the bumper base, the rigid ring does not shorten the bellows-shaped portion of the bumper base, and a low spring rigidity at the initial stage of load input ensures a sufficient stroke. .
【００１０】[0010]
【実施例】次に、本発明の一実施例を図１〜図３に基づ
いて説明する。尚、図５に示した従来のものと同一部分
には同一符号を用いるものとする。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to FIGS. Incidentally, the same parts as those of the conventional one shown in FIG.
【００１１】図面において、２０は、本発明にかかるバ
ウンドバンパであり、このバウンドバンパ２０は、バン
パ基体１が弾性部材によって蛇腹円筒状に形成され、こ
のバンパ基体１の下端の大径部２の外周に、金属等で形
成された剛性リング１１が取り付けられている。この剛
性リング１１は、バンパ基体１に対する埋設部１２と、
この埋設部１２から大径部２の外周面に沿って軸方向両
側（図中上下方向）に延出する円筒部１３とから構成さ
れている。In the drawings, reference numeral 20 denotes a bound bumper according to the present invention. In this bound bumper 20, the bumper base body 1 is formed of an elastic member into a bellows cylindrical shape, and the large diameter portion 2 of the lower end of the bumper base body 1 is formed. A rigid ring 11 made of metal or the like is attached to the outer circumference. The rigid ring 11 includes an embedded portion 12 for the bumper base 1,
It is composed of a cylindrical portion 13 extending from the embedded portion 12 along the outer peripheral surface of the large diameter portion 2 to both axial sides (vertical direction in the drawing).
【００１２】また、前記バンパ基体１の上部はダストブ
ーツ１４と共にブラケット４に嵌合され、この状態でシ
ョックアブソーバ６のロッド５の上部に取り付けられて
いる。そして、バンパ基体１の下端はショックアブソー
バ６が圧縮され所定量変位したときにシリンダ７の端面
と当接するようになっている。The upper portion of the bumper base 1 is fitted to the bracket 4 together with the dust boot 14, and is attached to the upper portion of the rod 5 of the shock absorber 6 in this state. The lower end of the bumper base 1 comes into contact with the end surface of the cylinder 7 when the shock absorber 6 is compressed and displaced by a predetermined amount.
【００１３】このバウンドバンパ２０は以上のような構
成であるため、荷重入力初期には、バンパ基体１がその
蛇腹形状によって軸方向に低ばね剛性でもって弾性変形
する（図１中の矢印参照）。また、荷重入力後期には、
バンパ基体１が軸方向の弾性変形と併せて外径方向に膨
出しようとするがしようとするが、外径方向の膨出は剛
性リング１１の埋設部１２と円筒部１３とによって抑制
されるため、このとき、急激に高いばね剛性となる（図
２参照）。Since the bound bumper 20 is constructed as described above, the bumper base body 1 is elastically deformed in the axial direction with low spring rigidity due to its bellows shape at the initial stage of load input (see the arrow in FIG. 1). . Also, in the latter half of load input,
The bumper base body 1 tries to bulge in the outer diameter direction along with the elastic deformation in the axial direction, but the bulging in the outer diameter direction is suppressed by the embedded portion 12 and the cylindrical portion 13 of the rigid ring 11. Therefore, at this time, the spring rigidity suddenly becomes high (see FIG. 2).
【００１４】バウンドバンパ２０は、このように荷重入
力後期で高いばね剛性を得ることができるが、バンパ基
体１の大径部２に埋設されるのは剛性リング１１の埋設
部１２だけであるため、バンパ基体１の蛇腹形状部分は
従来のものと同じ長さだけ確保することができる。この
ため、荷重入力初期において低ばね剛性となるストロー
クは従来のものと同様に充分に確保することができる。The bound bumper 20 can thus obtain a high spring rigidity in the latter stage of load input, but only the embedded portion 12 of the rigid ring 11 is embedded in the large diameter portion 2 of the bumper base 1. The bellows-shaped portion of the bumper base 1 can be secured for the same length as the conventional one. Therefore, a stroke having a low spring rigidity in the initial stage of load input can be sufficiently secured as in the conventional case.
【００１５】ここで、図３は本発明にかかるこのバウン
ドバンパ２０と従来のバウンドバンパの荷重−たわみ特
性を示すもので、同図中実線が本発明にかかるものを示
し、破線が従来のものを示す。この図からも明らかなよ
うに、本発明にかかるものは低ばね剛性部分のストロー
クＬ0を従来のものと同じに維持しつつ、総ストローク
Ｌ2を従来のものＬ1よりも短くすることができる。Here, FIG. 3 shows the load-deflection characteristics of the bound bumper 20 according to the present invention and the conventional bound bumper, in which the solid line shows the one according to the present invention and the broken line shows the conventional one. Indicates. As is clear from this figure, the one according to the present invention can make the total stroke L 2 shorter than the conventional one L 1 while keeping the stroke L 0 of the low spring rigidity portion the same as the conventional one. it can.
【００１６】尚、本発明の実施例はここで述べたものに
限るものでなく、例えば、剛性リング１１の円筒部１２
は、図４に示すもののように埋設部１２の片側だけに延
出させるようにしても良い。The embodiment of the present invention is not limited to the one described here, and for example, the cylindrical portion 12 of the rigid ring 11 is used.
May be extended to only one side of the embedded portion 12, as shown in FIG.
【００１７】[0017]
【発明の効果】以上のように本発明は、剛性リングを、
バンパ基体に対する埋設部と、この埋設部からバンパ基
体大径部の外周面に沿って軸方向に延出する円筒部とか
ら構成して、荷重入力後期に剛性リングの埋設部に加え
て円筒部がバンパ基体の膨出を抑制するようにしたた
め、荷重入力初期の低ばね剛性のストロークを短くする
ことなく、荷重入力後期のばね剛性を確実に高めること
ができる。As described above, according to the present invention, the rigid ring is
It is composed of an embedded portion for the bumper base body and a cylindrical portion that extends axially from the embedded portion along the outer peripheral surface of the large diameter portion of the bumper base body, and in addition to the embedded portion of the rigid ring in the latter stage of load input, the cylindrical portion. Since the swelling of the bumper base is suppressed, the spring rigidity in the latter stage of load input can be reliably increased without shortening the stroke of low spring rigidity in the initial stage of load input.
【図１】本発明の一実施例を示す断面図。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】同実施例を示す断面図。FIG. 2 is a sectional view showing the same embodiment.
【図３】本発明にかかるバウンドバンパと従来のバウン
ドバンパの荷重−たわみ特性を示すグラフ。FIG. 3 is a graph showing load-deflection characteristics of a bound bumper according to the present invention and a conventional bound bumper.
【図４】本発明の他の実施例を示す断面図。FIG. 4 is a sectional view showing another embodiment of the present invention.
【図５】従来の技術を示す断面図。FIG. 5 is a sectional view showing a conventional technique.
１…バンパ基体、 ２…大径部、 １１…剛性リング、 １２…埋設部、 １３…円筒部、 ２０…バウンドバンパ。 DESCRIPTION OF SYMBOLS 1 ... Bumper base, 2 ... Large diameter part, 11 ... Rigid ring, 12 ... Embedded part, 13 ... Cylindrical part, 20 ... Bound bumper.
Claims (1)
たバンパ基体の大径部に剛性リングが取り付けられて成
る車両用サスペンションのバウンドバンパにおいて、前
記剛性リングを、バンパ基体に対する埋設部と、この埋
設部から前記大径部の外周面に沿って軸方向に延出する
円筒部とから構成したことを特徴とする車両用サスペン
ションのバウンドバンパ。1. A bound bumper for a vehicle suspension, comprising a bumper base formed in a bellows cylindrical shape by an elastic member and having a large diameter portion attached to the large diameter part. A bound bumper for a vehicle suspension, comprising a cylindrical portion that extends from an embedded portion in the axial direction along the outer peripheral surface of the large diameter portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1364093A JP3294359B2 (en) | 1993-01-29 | 1993-01-29 | Bounce bumper for vehicle suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1364093A JP3294359B2 (en) | 1993-01-29 | 1993-01-29 | Bounce bumper for vehicle suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06229437A true JPH06229437A (en) | 1994-08-16 |
| JP3294359B2 JP3294359B2 (en) | 2002-06-24 |
Family
ID=11838843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1364093A Expired - Fee Related JP3294359B2 (en) | 1993-01-29 | 1993-01-29 | Bounce bumper for vehicle suspension |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3294359B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210805A (en) * | 1998-01-23 | 1999-08-03 | Nippon Mektron Ltd | Bump stopper |
| JP2000161419A (en) * | 1998-11-24 | 2000-06-16 | Tokai Rubber Ind Ltd | Bumper spring |
| JP2010007692A (en) * | 2008-06-24 | 2010-01-14 | Toyo Tire & Rubber Co Ltd | Dust cover with bound stopper |
| US7681897B2 (en) * | 2006-02-24 | 2010-03-23 | Zf Friedrichshafen Ag | Wheel suspension |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009127640A (en) * | 2007-11-19 | 2009-06-11 | Kurashiki Kako Co Ltd | Damper unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3151771C2 (en) | 1981-12-29 | 1986-10-23 | Metzeler Kautschuk GmbH, 8000 München | Stop buffer |
-
1993
- 1993-01-29 JP JP1364093A patent/JP3294359B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210805A (en) * | 1998-01-23 | 1999-08-03 | Nippon Mektron Ltd | Bump stopper |
| JP2000161419A (en) * | 1998-11-24 | 2000-06-16 | Tokai Rubber Ind Ltd | Bumper spring |
| US7681897B2 (en) * | 2006-02-24 | 2010-03-23 | Zf Friedrichshafen Ag | Wheel suspension |
| JP2010007692A (en) * | 2008-06-24 | 2010-01-14 | Toyo Tire & Rubber Co Ltd | Dust cover with bound stopper |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3294359B2 (en) | 2002-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8191692B2 (en) | Cylinder apparatus | |
| US4667943A (en) | Resilient bushing | |
| US4513990A (en) | Bushing structure in a vehicle suspension system | |
| US5257730A (en) | Bound stopper for vehicle suspension having rubber and foam elastic bodies | |
| US6199844B1 (en) | Striker cap for vehicle suspension system | |
| US3861661A (en) | Compression spring assembly | |
| EP2143972B1 (en) | Bump stopper | |
| JP5291926B2 (en) | Strut mount | |
| JPS6136006A (en) | Cushioning connection structure for rod-shaped suspension members | |
| US4210343A (en) | Automotive suspension system | |
| JPH06229437A (en) | Bound bumper of vehicular suspension | |
| JPH04345510A (en) | Suspension bush and suspension | |
| JPS632673Y2 (en) | ||
| JP2001193781A (en) | Upper support for suspension | |
| JPS6115322Y2 (en) | ||
| JPS6330532B2 (en) | ||
| JP2003191737A (en) | Bound stopper | |
| JPS6337537Y2 (en) | ||
| JPH0139202Y2 (en) | ||
| JPS60222306A (en) | Suspension for vehicles | |
| JP2007127173A (en) | Bound stopper | |
| JPH0514690U (en) | Fitting structure of bump cushion for vehicle shock absorber and dust cover | |
| JP3294358B2 (en) | Bound bumper mounting structure for vehicle suspension | |
| JP3694169B2 (en) | Anti-vibration stopper | |
| JPS5854245Y2 (en) | wheel suspension system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |