JPS62155345A - Suspension - Google Patents
SuspensionInfo
- Publication number
- JPS62155345A JPS62155345A JP29557485A JP29557485A JPS62155345A JP S62155345 A JPS62155345 A JP S62155345A JP 29557485 A JP29557485 A JP 29557485A JP 29557485 A JP29557485 A JP 29557485A JP S62155345 A JPS62155345 A JP S62155345A
- Authority
- JP
- Japan
- Prior art keywords
- elastic body
- suspension
- coil spring
- spring
- covering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
-
- 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
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
- F16F3/12—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber spring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
この発明は、サスペンション、とくに、ショックアブソ
ーバの周囲にコイルスプリングを配して構成されるサス
ペンションの改良に関する。The present invention relates to a suspension, and particularly to an improvement in a suspension configured by disposing a coil spring around a shock absorber.
従来、この種のサスペンションは一般に、第４図に示す
構造が採用されている。
すなわち、このサスペンションは、ショックアブソーバ
の外筒１にコイルスプリング２の下端を受けるための下
部シート金具３を固定するとともにショックアブソーバ
の伸縮ロッド４の先端部に上記コイルスプリング２の上
端を受けるための上部シート金具５を取付け、これら両
シート金具３゜５間にコイルスプリング２を介装するこ
とにより基本的に構成される。そして、ロッド４の周囲
には、上端が上部シート金具５に当接させられたゴム製
のバウンドストッパ８が設けられ、さらに、ロッド４の
摺動部７へ塵や泥が付着するのを防止するための筒状防
塵カバー６が、その上端をコイルスプリング２の上端と
上部シート金具５との間に挟着するようにして、スプリ
ング２の内側に配される。Conventionally, this type of suspension generally has a structure shown in FIG. 4. That is, in this suspension, a lower sheet metal fitting 3 for receiving the lower end of the coil spring 2 is fixed to the outer cylinder 1 of the shock absorber, and a lower sheet metal fitting 3 for receiving the upper end of the coil spring 2 is fixed to the tip of the telescopic rod 4 of the shock absorber. It is basically constructed by attaching an upper sheet metal fitting 5 and interposing a coil spring 2 between these two sheet metal fittings 3.5. A rubber bound stopper 8 whose upper end is brought into contact with the upper sheet metal fitting 5 is provided around the rod 4 to further prevent dust and mud from adhering to the sliding part 7 of the rod 4. A cylindrical dustproof cover 6 is disposed inside the spring 2 with its upper end sandwiched between the upper end of the coil spring 2 and the upper sheet metal fitting 5.
上記したように従来のこの種のサスペンションの構造で
は、防塵カバー６が必須不可欠な部品であり、その分サ
スペンションの部品点数が多くなるとともに、組付は作
業も煩雑となる。
また、防塵カバー６は通常金属製であるので、これが何
らかの原因で傾いたときには、下端がコイルスプリング
２またはショックアブソーバ１に接触し、正常な伸縮動
作が得られなくなるなどの事態を招く。
さらに、バウンドストッパ８は、サスペンションがフル
ハンプしたときの衝撃を和らげるために必須の部材で、
しかもコイルスプリング２と独立した固有の圧縮高さｈ
“を持っているため、上部シート金具５のふところ長さ
ｈをこの圧縮高さｈｏに見合った量に設定しなければな
らず、これによりサスペンション全長が長くなって、そ
の分車室が圧迫される。
この発明は、以上の事情のもとで考え出されたもので、
上記従来例の問題を解決し、防塵機能を備えながら防塵
カバーを省略し、かつサスペンション全長を短縮しうる
新たなサスペンションを提供することをその課題とする
。As described above, in the conventional structure of this type of suspension, the dustproof cover 6 is an essential part, which increases the number of parts of the suspension and makes the assembly work complicated. Further, since the dustproof cover 6 is usually made of metal, if it is tilted for some reason, the lower end will come into contact with the coil spring 2 or the shock absorber 1, resulting in a situation where normal expansion and contraction cannot be achieved. Furthermore, the bound stopper 8 is an essential member to soften the impact when the suspension is fully humped.
Moreover, the unique compression height h independent of the coil spring 2
”, the length h of the upper seat metal fitting 5 must be set to an amount commensurate with the compression height ho, which increases the overall length of the suspension and compresses the passenger compartment accordingly. This invention was conceived under the above circumstances.
It is an object of the present invention to provide a new suspension that solves the problems of the conventional example, has a dustproof function, omits a dustproof cover, and can shorten the overall length of the suspension.
【問題を解決するための手段】
上記の問題を解決するため、この発明では、次の技術的
手段を講じている。
すなわち、ショックアブソーバの周囲にコイルスプリン
グを配してなるサスペンションにおいて、上記コイルス
プリングを、その線条の周囲を所定厚みで被覆する被覆
部と、隣り合う線条の被覆部どうしを結ぶ薄状の連結部
とで形成される弾性体で被覆している。[Means for Solving the Problems] In order to solve the above problems, the present invention takes the following technical measures. That is, in a suspension in which a coil spring is arranged around a shock absorber, the coil spring is covered with a covering part that covers the periphery of the filament with a predetermined thickness, and a thin coating part that connects the coating parts of adjacent filaments. It is covered with an elastic body formed with the connecting part.
この発明のサスペンションに使用されるコイルスプリン
グは、その線条が所定厚みの弾性体で被覆されているの
で、スプリングがフルバンプしたとき隣り合う線条を被
覆する弾性体どうしが実質的に接触して、従来のバウン
ドスト−／パと同等の緩衝作用をなす。
また、隣り合う線条を被覆する被覆部どうしは、薄状の
連結部で連結されているので、このように弾性体で被覆
されたコイルスプリングは、内部に閉じた筒状空間を形
成し、したがって塵や泥がコイルスプリングの内部に入
り込むことがない。The coil spring used in the suspension of this invention has its filaments covered with an elastic body having a predetermined thickness, so that when the spring fully bumps, the elastic bodies covering adjacent filaments substantially contact each other. , it has the same buffering effect as the conventional bound stopper/pa. In addition, since the covering parts that cover adjacent filaments are connected by a thin connecting part, the coil spring covered with the elastic body in this way forms a closed cylindrical space inside, Therefore, dust and mud will not get inside the coil spring.
以上の結果、本発明によれば、コイルスプリングの各線
条を被覆する弾性体被覆部がバウンドストッパと同等の
作用をなすので、従来のバウンドストッパを省略するこ
とができ、組付は部品点数が削減することができる。ま
た、この場合、バウンドストッパ収容空間が不要となる
ので、サスペンション全長をその分短縮することができ
る。さらに、各線条を被覆する弾性体被覆部どうしが薄
状の弾性体連結部で連結されているので、これが防塵効
果を発ｊｌＬ Ｌ、従来の防塵カバーが省略され、これ
によっても組付は部品点数が省略されるとともに、防塵
カバーがコイルスプリングまたはショックアブソーバに
接触することによる不具合も皆無となる。As a result of the above, according to the present invention, the elastic covering portion that covers each filament of the coil spring has the same effect as a bound stopper, so the conventional bound stopper can be omitted, and the assembly requires fewer parts. can be reduced. Further, in this case, since the bound stopper accommodation space is not required, the overall length of the suspension can be shortened accordingly. Furthermore, since the elastic covering parts that cover each filament are connected to each other by a thin elastic connecting part, this produces a dustproof effect, and the conventional dustproof cover is omitted. The number of points is omitted, and there are no problems caused by the dust cover coming into contact with the coil spring or shock absorber.
以下、本発明の実施例を図面を参照して具体的に説明す
る。
第１図は本発明のサスペンションの第一の実施例を示す
。
外筒１１と、これに対してダンパ効果をもって伸縮する
ロッド１４を備えるショックアブソーバは、外筒１１の
下端を車軸管やトレーリングアームなどの、いわゆるバ
ネ下部材に連結され、かつ、ロッド１４の先端を緩衝ゴ
ム１７を介して車体に連結することにより装着されてい
る。そして、外筒１１の適部に固定された下部シート金
具１３と、ロッド１４の適部に設けられた上部シート金
具１５との間に、ショックアブソーバを囲むようにして
コイルスプリング１２が介装されている点は従来例と同
様である。
本発明においては、上記コイルスプリング１２は、発泡
ウレタン樹脂などの弾性体によって連続被覆されている
。さらに具体的には、スプリング１２の各線条１２ａ、
１２ａは、所定厚みの弾性体被覆部１８で覆われるとと
もに、各弾性被覆部１８は、変形容易な薄状の弾性連結
部１９で連結される。
上記弾性体被覆部１８の厚みは、スプリング１２の圧縮
高さに応じて定められる。また、弾性体としての発泡ウ
レタン樹脂としては、たとえば、ポリエステル系高密度
ウレタン（密度： ０．４５ｇ ／ｃＪ）が推奨される
。
以上の構成において、コイルスプリング１２の各線条１
２ａ、１２ａ間は、弾性体連結部１９で封鎖されている
ので、これが防塵作用をなし、したがって従来の防塵カ
バーは省略される。また、スプリング１２がフルバンプ
したとき隣り合う弾性体被覆部１８が実質的に接触しあ
って緩衝作用をなすので、従来のバウンドストッパを省
略するか、または小さなものに変更することができる。
バウンドストソバを省略する場合、第４図に示す従来例
と第１図を比較すれば明らかなように、上部シート金具
１５のふところ高さｈｌｌを小さくすることができ、そ
の分サスペンション全体の長さが短縮される。
なお、荷重Ｆに対する変位δの特性をたとえば第２図（
従来の特性）に近付けるには、第３図に示すように、上
部シート金具５の内部に、従来の場合により小型のバウ
ンドストッパ２０を組み込むことにより、対応すること
ができる。
もちろん、この発明の範囲は上述した実施例に限定され
るものではない。たとえば、実施例では、コイルスプリ
ング１２の線条１２ａを被覆する弾性被覆部の断面形状
を、安定した圧縮状態を得られる略正方形としているが
、その他の断面形状としてもよい。Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 shows a first embodiment of the suspension of the present invention. A shock absorber includes an outer cylinder 11 and a rod 14 that expands and contracts with a damper effect with respect to the outer cylinder 11. The lower end of the outer cylinder 11 is connected to a so-called unsprung member such as an axle pipe or a trailing arm, and the rod 14 is It is mounted by connecting the tip to the vehicle body via a cushioning rubber 17. A coil spring 12 is interposed between a lower sheet metal fitting 13 fixed to an appropriate portion of the outer cylinder 11 and an upper sheet metal fitting 15 provided to an appropriate portion of the rod 14 so as to surround the shock absorber. The points are similar to the conventional example. In the present invention, the coil spring 12 is continuously covered with an elastic body such as foamed urethane resin. More specifically, each filament 12a of the spring 12,
12a is covered with an elastic covering part 18 having a predetermined thickness, and each elastic covering part 18 is connected by a thin elastic connecting part 19 that is easily deformable. The thickness of the elastic body covering portion 18 is determined according to the compression height of the spring 12. Further, as the foamed urethane resin as the elastic body, for example, polyester-based high-density urethane (density: 0.45 g /cJ) is recommended. In the above configuration, each filament 1 of the coil spring 12
Since the space between 2a and 12a is sealed by the elastic connecting portion 19, this provides a dustproof effect, and therefore the conventional dustproof cover is omitted. Furthermore, when the spring 12 makes a full bump, the adjacent elastic sheaths 18 substantially come into contact with each other to provide a buffering effect, so the conventional bound stopper can be omitted or replaced with a smaller one. When the bound suspension is omitted, as is clear from a comparison between the conventional example shown in FIG. 4 and FIG. length is shortened. The characteristics of the displacement δ with respect to the load F are shown in Fig. 2 (
In order to approximate the conventional characteristics, as shown in FIG. 3, a bound stopper 20, which is smaller than the conventional case, can be incorporated inside the upper sheet metal fitting 5. Of course, the scope of the invention is not limited to the embodiments described above. For example, in the embodiment, the cross-sectional shape of the elastic covering portion that covers the filament 12a of the coil spring 12 is approximately square to obtain a stable compressed state, but other cross-sectional shapes may be used.
第１図は本発明の第一実施例の縦断面図、第２図はサス
ペンションにかかる荷重に対する変位量の関係の一例の
グラフ、第３図は本発明の第二実施例の編断面図、第４
図は従来例の縦断面図である。
１１・・・外筒、１２・・・コイルスプリング、１４°
゛。
ロッド、１８・・・被覆部、１９・・・連結部。FIG. 1 is a longitudinal sectional view of the first embodiment of the present invention, FIG. 2 is a graph of an example of the relationship between the load applied to the suspension and the amount of displacement, and FIG. 3 is a cross-sectional view of the second embodiment of the present invention. Fourth
The figure is a longitudinal sectional view of a conventional example. 11...Outer cylinder, 12...Coil spring, 14°
゛. Rod, 18... Covering part, 19... Connecting part.
Claims (1)
配してなるサスペンションにおいて、上記コイルスプリ
ングを、その線条の周囲を所定厚みで被覆する被覆部と
、隣り合う線条の被覆部どうしを結ぶ薄状の連結部とで
形成される弾性体で被覆したことを特徴とする、サスペ
ンション。(1) In a suspension in which a coil spring is arranged around a shock absorber, the coil spring has a coating part that covers the periphery of the filament with a predetermined thickness, and a thin coating part that connects the coating parts of adjacent filaments. A suspension, characterized in that it is covered with an elastic body formed by a connecting portion of the suspension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29557485A JPS62155345A (en) | 1985-12-26 | 1985-12-26 | Suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29557485A JPS62155345A (en) | 1985-12-26 | 1985-12-26 | Suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62155345A true JPS62155345A (en) | 1987-07-10 |
Family
ID=17822397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29557485A Pending JPS62155345A (en) | 1985-12-26 | 1985-12-26 | Suspension |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62155345A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299786A (en) * | 1993-03-17 | 1994-04-05 | Freudenberg-Nok General Partnership | Noise suppression member |
| WO1998026193A1 (en) * | 1996-12-12 | 1998-06-18 | Mauro Bianchi S.A. | Vehicle wheel suspensions using spring combined with flexible armouring for modifying the stiffness curve |
| KR100383930B1 (en) * | 2000-09-21 | 2003-05-14 | 현대자동차주식회사 | The mounting structure of shock absorber spring for vehicle |
| JP2011137531A (en) * | 2009-12-30 | 2011-07-14 | Soft Puren Kogyo Kk | Soft resin foaming integrated spring |
| CN102834640A (en) * | 2010-04-10 | 2012-12-19 | 奥迪股份公司 | Air spring |
| FR2986292A1 (en) * | 2012-01-30 | 2013-08-02 | Peugeot Citroen Automobiles Sa | Safety device for use in helical spring of suspension of car to retain spring pieces in event of rupture of spring, has connectors exhibiting limited thickness and strong elasticity for not modifying curve of stiffness of spring |
| KR20140045831A (en) * | 2012-10-09 | 2014-04-17 | 현대모비스 주식회사 | In wheel type running gear |
| US20220106996A1 (en) * | 2019-01-29 | 2022-04-07 | Rpc Bramlage Gmbh | Plastic spring |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57120746A (en) * | 1981-01-16 | 1982-07-27 | Nhk Spring Co Ltd | Coil spring device |
| JPS6049145A (en) * | 1983-08-25 | 1985-03-18 | Kayaba Ind Co Ltd | Suspension spring of hydraulic shock absorber |
| JPS60245843A (en) * | 1984-05-21 | 1985-12-05 | Nhk Spring Co Ltd | Covering coil spring |
-
1985
- 1985-12-26 JP JP29557485A patent/JPS62155345A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57120746A (en) * | 1981-01-16 | 1982-07-27 | Nhk Spring Co Ltd | Coil spring device |
| JPS6049145A (en) * | 1983-08-25 | 1985-03-18 | Kayaba Ind Co Ltd | Suspension spring of hydraulic shock absorber |
| JPS60245843A (en) * | 1984-05-21 | 1985-12-05 | Nhk Spring Co Ltd | Covering coil spring |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299786A (en) * | 1993-03-17 | 1994-04-05 | Freudenberg-Nok General Partnership | Noise suppression member |
| WO1998026193A1 (en) * | 1996-12-12 | 1998-06-18 | Mauro Bianchi S.A. | Vehicle wheel suspensions using spring combined with flexible armouring for modifying the stiffness curve |
| FR2757107A1 (en) * | 1996-12-12 | 1998-06-19 | Bianchi Mauro Sa | VEHICLE WHEEL SUSPENSIONS USING A COMBINED SPRING WITH A SOFT ARMATURE INTENDED TO MODIFY ITS STIFFNESS CURVE |
| US6237901B1 (en) | 1996-12-12 | 2001-05-29 | Mauro Bianchi S.A. | Vehicle wheel suspensions using spring combined with flexible armoring for modifying the stiffness curve |
| KR100383930B1 (en) * | 2000-09-21 | 2003-05-14 | 현대자동차주식회사 | The mounting structure of shock absorber spring for vehicle |
| JP2011137531A (en) * | 2009-12-30 | 2011-07-14 | Soft Puren Kogyo Kk | Soft resin foaming integrated spring |
| CN102834640A (en) * | 2010-04-10 | 2012-12-19 | 奥迪股份公司 | Air spring |
| WO2011124325A3 (en) * | 2010-04-10 | 2013-02-28 | Audi Ag | Air spring |
| FR2986292A1 (en) * | 2012-01-30 | 2013-08-02 | Peugeot Citroen Automobiles Sa | Safety device for use in helical spring of suspension of car to retain spring pieces in event of rupture of spring, has connectors exhibiting limited thickness and strong elasticity for not modifying curve of stiffness of spring |
| KR20140045831A (en) * | 2012-10-09 | 2014-04-17 | 현대모비스 주식회사 | In wheel type running gear |
| US20220106996A1 (en) * | 2019-01-29 | 2022-04-07 | Rpc Bramlage Gmbh | Plastic spring |
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