JPH0630486Y2 - Shock absorber for suspension system - Google Patents
Shock absorber for suspension systemInfo
- Publication number
- JPH0630486Y2 JPH0630486Y2 JP161587U JP161587U JPH0630486Y2 JP H0630486 Y2 JPH0630486 Y2 JP H0630486Y2 JP 161587 U JP161587 U JP 161587U JP 161587 U JP161587 U JP 161587U JP H0630486 Y2 JPH0630486 Y2 JP H0630486Y2
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- peripheral surface
- thin
- shock absorber
- cylinder
- 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.)
- Expired - Lifetime
Links
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- Fluid-Damping Devices (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、ナックルスピンドルを支持する懸架装置用シ
ョックアブソーバに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a shock absorber for a suspension device supporting a knuckle spindle.
（従来の技術） 従来の懸架装置用ナックルスピンドルとして、例えば、
実公昭４８−９５１６号公報に記載されているようなも
のが知られている。(Prior Art) As a conventional knuckle spindle for a suspension device, for example,
Those described in Japanese Utility Model Publication No. 48-9516 are known.
この従来のショックアブソーバは、下端部の段付部の下
側が薄肉の外筒薄肉部とされた外筒と、前記段付部に外
周端部の上面が係合され、前記外筒薄肉部の内周面に外
周面全体が当接する円板上のボトムと、前記外筒の外周
面に内周面が当接されるナックルスピンドルとを備え、
前記ボトムの外周端部と外筒薄肉部とナックルスピンド
ルとが溶接されて固着されていた。In this conventional shock absorber, an outer cylinder whose lower end is a thin-walled outer cylinder thin portion on the lower side of the stepped portion, and an upper surface of an outer peripheral end of the stepped portion is engaged with the outer cylinder thin-walled portion. A disc-shaped bottom whose entire outer peripheral surface contacts the inner peripheral surface, and a knuckle spindle whose inner peripheral surface contacts the outer peripheral surface of the outer cylinder,
The outer peripheral end of the bottom, the thin-walled outer cylinder, and the knuckle spindle were welded and fixed to each other.
また、このような従来の懸架装置用ショックアブソーバ
では、第４図に詳細に示すように、外筒０１の外筒薄肉
部０２がボトム０３の外周面０４の全体に当接する長さ
に形成され、また、外周面０４の全体が平滑に形成され
ているから、同図に示すようにボトム０３の下面側から
ボトム０３と外筒薄肉部０２とナックルスピンドル０５
とに跨って溶接を行なって溶接部０６を設けた場合、そ
れに伴なって生じる溶け込み部０７は、同図に示すよう
に、ボトム０３の外周端部の一部と、外筒薄肉部０２の
一部とナックルスピンドル０５との間に生じていた。Further, in such a conventional shock absorber for a suspension device, as shown in detail in FIG. 4, the outer cylinder thin portion 02 of the outer cylinder 01 is formed to have a length in contact with the entire outer peripheral surface 04 of the bottom 03. Also, since the entire outer peripheral surface 04 is formed smooth, as shown in the figure, the bottom 03, the outer thin-walled portion 02, and the knuckle spindle 05 are arranged from the lower surface side of the bottom 03.
When the welded portion 06 is provided by performing welding across and, the melted portion 07 that accompanies the welding is formed in a part of the outer peripheral end portion of the bottom 03 and the thin portion 02 of the outer cylinder as shown in FIG. It occurred between a part and the knuckle spindle 05.
（考案が解決しようとする問題点） しかしながら、このような従来の懸架装置用ショックア
ブソーバにあっては、第４図に示すように、溶け込み部
０７が、外筒０１において外筒薄肉部０２の一部にしか
生じていなかったために、例えば、旋回走行中、車両の
横すべり等で、路面の縁石等に車輪が衝撃的に接触し
て、スピンドルに横方向から衝撃的な荷重が作用した場
合に、一番強度が低い外筒薄肉部０２の溶け込み部０７
との境界部分０ｂで破損してしまう恐れがあるという問
題点があった。(Problems to be Solved by the Invention) However, in such a conventional shock absorber for a suspension device, as shown in FIG. 4, the melt-in portion 07 has the outer cylinder thin portion 02 of the outer cylinder 01. Since it occurred only in part, for example, when the wheel impacts on the curbstone of the road surface due to the side slip of the vehicle during turning, and the impact load is applied to the spindle from the lateral direction. , The penetration part 07 of the outer cylinder thin-walled part 02 with the lowest strength
There is a problem in that there is a risk of breakage at the boundary portion 0b between and.
（問題点を解決するための手段） 本考案は、上述のような従来の問題点を解決することを
目的として成されたもので、この目的達成のために本考
案では、円筒形状を成して設けられ、下端に一般筒部よ
りも板厚が薄い外筒薄肉部が形成されると共に、この板
厚変化に対応する段付部が形成された外筒と、該外筒の
下端部内周面に外周面が当接される円板形状を成し、外
周面の下部に前記段付部に係合されると共に、前記外筒
薄肉部に当接される薄肉で径方向のフランジ部が形成さ
れたボトムと、前記外筒下端部の外周面に対し内周面を
当接するナックルスピンドルと、前記ボトムの外周端部
と外筒下端部とナックルスピンドルとに跨り、前記外筒
薄肉部の全域及び一般筒部を含む外筒下端部と前記フラ
ンジ部及びナックルスピンドルとの間の範囲に溶け込み
部を有する溶接部と、を備えていることを特徴とする手
段とした。(Means for Solving Problems) The present invention has been made for the purpose of solving the above-mentioned conventional problems. To achieve this object, the present invention has a cylindrical shape. And an outer cylinder having a stepped portion corresponding to the change in the plate thickness, and an inner circumference of the lower end portion of the outer cylinder. The outer peripheral surface is in contact with the outer peripheral surface, and the outer peripheral surface is in the shape of a disk. The formed bottom, a knuckle spindle that abuts the inner peripheral surface against the outer peripheral surface of the outer cylinder lower end portion, straddles the outer peripheral end portion of the bottom, the outer cylinder lower end portion, and the knuckle spindle, and forms the outer cylinder thin wall portion. Between the lower end of the outer cylinder including the entire area and the general cylinder and the flange and the knuckle spindle And a welded portion having a melted portion in the range.
（作用） 従って、本考案の懸架装置用ショックアブソーバでは、
溶接を行なうと、フランジ部が薄肉であって外筒薄肉部
及び段付部に容易に溶け込むことから、外筒において溶
け込み部が薄肉となった外筒薄肉部及び段付部の全域か
らさらに一般筒部を含んで存在することとなり、強度的
に劣る溶け込み部との境界が外筒では板厚が厚い一般筒
部に生じるために、ナックルスピンドルからの入力荷重
に対する外筒の強度が向上する。(Operation) Therefore, in the shock absorber for the suspension device of the present invention,
When welding is performed, the flange portion is thin and easily melts into the outer cylinder thin-walled portion and the stepped portion. Since the outer cylinder includes the cylindrical portion and a boundary with the melted portion having poor strength occurs in the general cylindrical portion having a large plate thickness in the outer cylinder, the strength of the outer cylinder against an input load from the knuckle spindle is improved.
（実施例） 以下、本考案の実施例を図面に基づき説明する。尚、実
施例として自転車のフロントサスペンションに用いられ
るショックアブソーバを例にとる。Embodiment An embodiment of the present invention will be described below with reference to the drawings. A shock absorber used for a bicycle front suspension will be taken as an example.
まず、第１図及び第２図に示す第１実施例のショックア
ブソーバＡについて説明する。First, the shock absorber A of the first embodiment shown in FIGS. 1 and 2 will be described.
このショックアブソーバＡは、上端部を車体１に支持さ
れ、下端部をボールジョイント２を介してトランスバー
スリンク３に連結され、前輪４を懸架するもので、外筒
１０、ボトム２０、ナックルスピンドル３０、溶接部４
０を備えている。The shock absorber A has an upper end supported by the vehicle body 1 and a lower end connected to the transverse link 3 via the ball joint 2 to suspend the front wheel 4, and includes the outer cylinder 10, the bottom 20, the knuckle spindle 30. , Weld 4
It has 0.
外筒１０は、ショックアブソーバＡの外側を覆う円筒形
状を成すもので、第２図に示すように、この外筒１０
は、上部に外筒１０とほぼ同軸で設けられたコイルスプ
リング５を支持するスプリングシート１１が固着され、
また、第２図のＣ部拡大図である第１図に示すように、
下端部には一般筒部１２の板厚Ｔよりも薄肉の外筒薄肉
部１３が高さｈで形成され、また、一般筒部１２と外筒
薄肉部１３との間には板厚変化に対応した段付部１４が
形成されている。The outer cylinder 10 has a cylindrical shape that covers the outside of the shock absorber A, and as shown in FIG.
Is fixed to a spring seat 11 that supports a coil spring 5 provided on the upper portion of the outer cylinder 10 substantially coaxially.
Further, as shown in FIG. 1 which is an enlarged view of a C portion of FIG.
An outer cylinder thin-walled portion 13 having a thickness h smaller than the plate thickness T of the general cylindrical portion 12 is formed at a height h at the lower end portion. Corresponding stepped portions 14 are formed.
ボトム２０は、前記外筒１０の底部を形成するもので、
このボトム２０は、前記外筒１０の下端部の内周面に外
周面２１が当接する円板状に形成され、外周面２１には
前記段付部１４に係合されると共に、前記外筒薄肉部１
３の内周面に当接する薄肉のフランジ部２２が径方向に
形成されている。The bottom 20 forms the bottom of the outer cylinder 10,
The bottom 20 is formed in a disk shape in which an outer peripheral surface 21 abuts on an inner peripheral surface of a lower end portion of the outer cylinder 10. The outer peripheral surface 21 is engaged with the stepped portion 14, and the outer cylinder Thin part 1
A thin flange portion 22 that abuts on the inner peripheral surface of 3 is formed in the radial direction.
ナックルスピンドル３０は、前記前輪４を回転自在に支
持するスピンドル軸３１を有し、前記外筒１０の下端部
の外周面に対し内周面を当接している。The knuckle spindle 30 has a spindle shaft 31 that rotatably supports the front wheel 4, and an inner peripheral surface of the outer peripheral surface of the outer cylinder 10 is in contact with the outer peripheral surface of the lower cylinder.
溶接部４０は、前記外筒１０とボトム２０とナックルス
ピンドル３０を固着するためのもので、この溶接部４０
は、第１図に示すように、ボトム２０の下面側からボト
ム２０の外周端部と外筒１０の下端部とナックルスピン
ドル３０とに跨って設けられ、また、溶接に際してこれ
ら部材間に生じる溶け込み部４１を有している。The welded portion 40 is for fixing the outer cylinder 10, the bottom 20 and the knuckle spindle 30 to each other.
As shown in FIG. 1, is provided so as to extend from the lower surface side of the bottom 20 to the outer peripheral end of the bottom 20, the lower end of the outer cylinder 10 and the knuckle spindle 30. It has a section 41.
そして、前記溶け込み部４１は、第１図に示すように、
前記フランジ部２２が薄肉であることでこのフランジ部
２２の下側からの溶接熱が容易に段付部１４及び外筒の
一般筒部１２に伝達されるために、外筒薄肉部１３及び
段付部１４の全域から一般筒部１２の下端部を含む外筒
１０の下端部と、ボトム２０のフランジ部２２全体及び
フランジ部２２の基端部と、の間で形成され、また、外
筒薄肉部１３全域を含む外筒下端部とナックルスピンド
ル３０との間にも形成される。Then, the melt-in portion 41, as shown in FIG.
Since the flange portion 22 is thin, the welding heat from the lower side of the flange portion 22 is easily transmitted to the stepped portion 14 and the general cylindrical portion 12 of the outer cylinder. It is formed between the lower end portion of the outer cylinder 10 including the lower end portion of the general cylindrical portion 12 and the entire flange portion 22 of the bottom 20 and the base end portion of the flange portion 22 from the entire area of the attachment portion 14, and the outer cylinder. It is also formed between the lower end of the outer cylinder including the entire thin portion 13 and the knuckle spindle 30.
また、外筒１０の下端部において溶け込み部４１との境
界ｂは、板厚が厚い一般筒部１２に存在している。In addition, the boundary b with the melted portion 41 at the lower end of the outer cylinder 10 is present in the general cylindrical portion 12 having a large plate thickness.
次に、実施例の作用について説明する。Next, the operation of the embodiment will be described.
例えば、旋回走行中、車両の横すべり等で、路面の縁石
等に車輪が衝撃的に接触して、第１図に示すように、前
輪４を支持するナックルスピンドル３０に横方向から衝
撃的な荷重が作用した場合に外筒１０に対する回転モー
メントＭが生じ、特に、溶接部４０にあっては、スピン
ドル軸３１と反対側の部分（第１図では左側の部分）に
対し引張り方向に作用する。しかし、第１実施例のショ
ックアブソーバＡでは、引張りに対し最弱部である外筒
１０における溶け込み部４１との境界ｂが厚肉の一般筒
部１２に有るため、従来のように溶け込み部が薄肉の部
分に有るのに比べ強度が高くなる。For example, during turning, a wheel impacts a curb or the like on the road surface due to a side slip of the vehicle, and as shown in FIG. 1, a knuckle spindle 30 supporting the front wheel 4 receives a lateral impact load. Occurs, a rotational moment M with respect to the outer cylinder 10 is generated, and particularly in the welded portion 40, it acts on the portion opposite to the spindle shaft 31 (left portion in FIG. 1) in the pulling direction. However, in the shock absorber A of the first embodiment, the boundary b with the penetration portion 41 in the outer cylinder 10 which is the weakest portion against pulling is in the thick general cylinder portion 12, so that the penetration portion is different from the conventional one. Its strength is higher than that of the thin part.
このように、第１実施例ではボトム２０にフランジ部２
２を形成し、外筒１０もそれに対応する位置に外筒薄肉
部１３と段付部１４とを形成するという形状変化させる
だけの簡単な構成で、ショックアブソーバＡの外筒の強
度が向上でき、破壊の恐れが減るという効果が得られ
る。As described above, in the first embodiment, the flange portion 2 is provided on the bottom 20.
2 and the outer cylinder 10 is formed with the outer cylinder thin-walled portion 13 and the stepped portion 14 at the corresponding positions, so that the outer cylinder of the shock absorber A can be improved in strength by a simple configuration. The effect of reducing the risk of destruction is obtained.
次に、第３図に示す第２実施例のショックアブソーバＢ
について説明する。Next, the shock absorber B of the second embodiment shown in FIG.
Will be described.
尚、この第２実施例を説明するにあたり、第１実施例と
同じ構成には同じ符号を付して説明を省略する。また、
作用についても、第１実施例と同様の作用は説明を省略
する。In describing the second embodiment, the same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. Also,
Regarding the operation, the description of the same operation as that of the first embodiment is omitted.
この第２実施例は、ボトム２２０に形成されるフランジ
部を上面が上向きに傾斜したフランジ部２２２とすると
共に、それに対応して外筒２１０の段付部を傾斜面２１
４とした例である。In the second embodiment, the flange portion formed on the bottom 220 is a flange portion 222 whose upper surface is inclined upward, and the stepped portion of the outer cylinder 210 is correspondingly formed with the inclined surface 21.
4 is an example.
また、溶接部２４０の溶け込み部２４１は、外筒２１０
の一般筒部２１２に達する範囲で形成されている。尚、
２１３は外筒薄肉部である。Further, the welded portion 241 of the welded portion 240 is
It is formed in a range that reaches the general cylindrical portion 212. still,
Reference numeral 213 is a thin portion of the outer cylinder.
以上、本考案の実施例を図面により詳述してきたが、具
体的な構成はこの実施例に限られるものではなく、本考
案の要旨を逸脱しない範囲における設計変更等があって
も本考案に含まれる。Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and the present invention can be applied even if there is a design change or the like within a range not departing from the gist of the present invention. included.
例えば、実施例ではフロントサスペンション用のショッ
クアブソーバを例にとったが、リヤサスペンションにも
適用できる。For example, in the embodiment, the shock absorber for the front suspension is taken as an example, but it can be applied to the rear suspension.
また、フランジ部は溶け込みが容易な薄肉であれば、そ
の厚さや形状はどのようでもよく、ボトムや外筒の材質
や溶接温度等に応じて適宜定められるものである。The flange portion may have any thickness and shape as long as it can be easily melted, and is appropriately determined according to the material of the bottom and the outer cylinder, the welding temperature, and the like.
（考案の効果） 以上説明したように、本考案の懸架装置用ショックアブ
ソーバにあっては、ボトムにフランジ部を形成し、それ
に対応するように外筒薄肉部を配置することで、外筒に
おいて強度的に劣る溶け込み部との境界部分が板厚が厚
い一般筒部に存在するような範囲の溶け込み部を有する
手段としたために、ボトム及び外筒の僅かな形状変更と
いう簡単な構成でありながら、ナックルスピンドルから
入力される横方向荷重に対する外筒の強度が向上し、外
筒の破損の恐れが減るという効果が得られる。(Effect of the Invention) As described above, in the shock absorber for a suspension device of the present invention, the flange portion is formed on the bottom, and the thin wall portion of the outer cylinder is arranged so as to correspond thereto, so that Since the boundary portion with the welded portion having poor strength is provided with a welded portion in a range such that it exists in a general tubular portion having a large plate thickness, it has a simple configuration in which the shape of the bottom and the outer cylinder is slightly changed. The strength of the outer cylinder against the lateral load input from the knuckle spindle is improved, and the risk of damage to the outer cylinder is reduced.
第１図は本考案一実施例の懸架装置用ショックアブソー
バを示す要部断面図（第２図Ｃ部）、第２図は本考案第
１実施例のショックアブソーバを示す全体図、第３図は
本考案第２実施例のショックアブソーバの要部を示す断
面図、第４図は従来例を示す断面図である。 Ａ、Ｂ……ショツクアブソーバ １０、２１０……外筒 １２、２１２……一般筒部 １３、２１３……外筒薄肉部 １４、２１４……段付部 ２０、２２０……ボトム ２２、２２２……フランジ部 ３０……ナックルスピンドル ４０、２４０……溶接部 ４１、２４１……溶け込み部FIG. 1 is a sectional view of a main part of a shock absorber for a suspension device according to an embodiment of the present invention (part C in FIG. 2), and FIG. 2 is an overall view showing a shock absorber according to the first embodiment of the present invention, and FIG. Is a sectional view showing a main part of a shock absorber according to a second embodiment of the present invention, and FIG. 4 is a sectional view showing a conventional example. A, B: Shock absorber 10, 210 ...... Outer cylinder 12, 212 ...... General cylinder part 13, 213 ...... Outer cylinder thin wall part 14, 214 ...... Stepped part 20, 220 ...... Bottom 22, 222 ...... Flange part 30 ... Knuckle spindle 40,240 ... Welding part 41,241 ... Melting part
Claims (1)
部よりも板厚が薄い外筒薄肉部が形成されると共に、こ
の板厚変化に対応する段付部が形成された外筒と、 該外筒の下端部内周面に外周面が当接される円板形状を
成し、外周面の下部に前記段付部に係合されると共に、
前記外筒薄肉部に当接される薄肉で径方向のフランジ部
が形成されたボトムと、 前記外筒下端部の外周面に対し内周面を当接するナック
ルスピンドルと、 前記ボトムの外周端部と外筒下端部とナックルスピンド
ルとに跨り、前記外筒薄肉部の全域及び一般筒部を含む
外筒下端部と前記フランジ部及びナックルスピンドルと
の間の範囲に溶け込み部を有する溶接部と、を備えてい
ることを特徴とする懸架装置用ショックアブソーバ。1. An outer cylinder thin-walled portion formed in a cylindrical shape and having a plate thickness thinner than that of a general cylinder portion, and a stepped portion corresponding to this plate thickness change is formed. A cylinder, and a disk shape in which an outer peripheral surface abuts on an inner peripheral surface of a lower end portion of the outer cylinder, and the lower surface of the outer peripheral surface is engaged with the stepped portion,
A bottom having a thin radial flange portion that abuts the outer cylinder thin portion, a knuckle spindle that makes an inner peripheral surface contact an outer peripheral surface of the outer cylinder lower end portion, and an outer peripheral end portion of the bottom. A straddle over the outer cylinder lower end and the knuckle spindle, and a welded portion having a melted portion in the range between the outer cylinder lower end including the entire outer cylinder thin-walled portion and the general cylinder and the flange and the knuckle spindle, A shock absorber for a suspension device, characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP161587U JPH0630486Y2 (en) | 1987-01-09 | 1987-01-09 | Shock absorber for suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP161587U JPH0630486Y2 (en) | 1987-01-09 | 1987-01-09 | Shock absorber for suspension system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63109207U JPS63109207U (en) | 1988-07-14 |
| JPH0630486Y2 true JPH0630486Y2 (en) | 1994-08-17 |
Family
ID=30779691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP161587U Expired - Lifetime JPH0630486Y2 (en) | 1987-01-09 | 1987-01-09 | Shock absorber for suspension system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0630486Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160009440A (en) * | 2014-07-16 | 2016-01-26 | 주식회사 삼홍사 | Gas cyliner |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061697A (en) * | 2000-08-23 | 2002-02-28 | Showa Corp | Bottom structure of hydraulic shock absorber |
| KR20020088526A (en) * | 2001-05-18 | 2002-11-29 | 현대자동차주식회사 | Structure for combining cylinder of shock absorber for vehicles and method for the same |
| CN106499765B (en) * | 2015-09-06 | 2019-05-10 | 青岛三弘精密器械有限公司 | Cylinder |
-
1987
- 1987-01-09 JP JP161587U patent/JPH0630486Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160009440A (en) * | 2014-07-16 | 2016-01-26 | 주식회사 삼홍사 | Gas cyliner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63109207U (en) | 1988-07-14 |
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