JPS62215137A - Urethane bound bumper - Google Patents
Urethane bound bumperInfo
- Publication number
- JPS62215137A JPS62215137A JP5639286A JP5639286A JPS62215137A JP S62215137 A JPS62215137 A JP S62215137A JP 5639286 A JP5639286 A JP 5639286A JP 5639286 A JP5639286 A JP 5639286A JP S62215137 A JPS62215137 A JP S62215137A
- Authority
- JP
- Japan
- Prior art keywords
- spring seat
- contact
- bound bumper
- bumper body
- bound
- 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
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 title claims description 6
- 239000006096 absorbing agent Substances 0.000 claims abstract description 8
- 230000035939 shock Effects 0.000 claims abstract description 8
- 230000037431 insertion Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 4
- 239000006260 foam Substances 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000010008 shearing 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
- F16F9/32—Details
- F16F9/58—Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Dampers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明はサス・ペンションに使用されるウレタンバウ
ンドバンパに関スル。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to urethane bound bumpers used in suspensions.
従来の技術
第９図に示すように、サスペンション、とシゎけストラ
ット型サスペンションにあっては、ショックアブソーバ
１のピストンロッド２の外側にバウンドバンバ３を設け
ると共にこのバウンドバンパ３の下側にダス・トブーツ
４を取付けてピストンロッド２をダストから保護すると
共にバウンドバンバ３のもつばね特性を有効利用するよ
うにしたものがある。BACKGROUND TECHNOLOGY As shown in FIG. 9, in the case of a suspension, a shock absorber strut type suspension, a bound bumper 3 is provided on the outside of the piston rod 2 of the shock absorber 1, and a bumper is provided on the underside of the bound bumper 3.・There is one in which a boot 4 is attached to protect the piston rod 2 from dust, and the spring characteristics of the bound bumper 3 are effectively utilized.
上記バウンドバンパ３はゴム等よシも非線形なばね特性
を有する発泡ウレタンで形成されコイルスプリング５の
スプリングシート６下面に圧接される際にある程度のつ
き上げ力を荷重分担できると共に圧縮変形時における外
方へのふくらみ量が少ない点で有利である。The above-mentioned bound bumper 3 is made of foamed urethane which has non-linear spring characteristics as well as rubber, and can share a certain amount of uplifting force when pressed against the lower surface of the spring seat 6 of the coil spring 5, as well as being able to bear the load when compressed and deformed. It is advantageous in that the amount of bulge in the direction is small.
発明が解決しようとする問題点
上記のようにバウンドバンパ３は補助ばね的にある程度
の入力荷重を分担できる点で優れているが、その反面、
スプリングシート６の下面にバウンドバンパ３の上面３
ａが圧接している場合に両者の接触面積が大きいため車
両操舵時等において剪断方向に力がかかるとこすれ音等
が発生してしまう点が指摘されている。Problems to be Solved by the Invention As mentioned above, the bound bumper 3 is excellent in that it can share a certain amount of input load as an auxiliary spring, but on the other hand,
The upper surface 3 of the bound bumper 3 is attached to the lower surface of the spring seat 6.
It has been pointed out that when a is in pressure contact, the contact area between the two is large, so that when a force is applied in the shearing direction during vehicle steering, etc., a rubbing sound or the like is generated.
そこで、この発明は、バウンドバンバのもつ荷重分担機
能に支障をきたすことなく、車両操舵時においてスプリ
ングシートとの間で発生するこすれ音等の異常発生を阻
止できるウレタンバウンドバンパを提供するものである
。SUMMARY OF THE INVENTION Therefore, the present invention provides a urethane bound bumper that can prevent abnormalities such as rubbing noise between the spring seat and the spring seat during vehicle steering without interfering with the load sharing function of the bound bumper. .
問題点を解決するための手段
ショックアブソーバのピストンロッドの挿通孔を有する
と共にコイルスプリングを受けるスプリングシート下面
に当接するバウンドバンバ本体のスプリングシート当接
面に突部が設けられている。Means for Solving the Problems A protrusion is provided on the spring seat abutting surface of the bound bumper body, which has an insertion hole for the piston rod of the shock absorber and comes into contact with the lower surface of the spring seat that receives the coil spring.
作用
下からのつき上げ力に対してはコイルスプリングのスプ
リングシート下面に圧接することで荷重分担を行ない車
両操舵時等にスプリングシートの下面とバウンドバンバ
上面との間に相対移動があっても、スプリングシート下
面に当接するのは突部だけであるため接触面積が小さく
こすれ音等の異音発生が阻止される。The load is shared by the coil spring being in pressure contact with the lower surface of the spring seat against the lifting force exerted by the action, and even if there is relative movement between the lower surface of the spring seat and the upper surface of the bound bumper during vehicle steering, etc. Since only the protrusion comes into contact with the lower surface of the spring seat, the contact area is small and the generation of abnormal noises such as rubbing noises is prevented.
実施例
以下、この発明の実施例を図面と共に前記従来の構成と
同一部分に同一符号を付して詳述する。Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, with the same reference numerals assigned to the same parts as in the conventional structure.
第１〜４図において、３は発泡ウレタン製のバウンドバ
ンバ本体であって、バウンドバンパ本体３の下端外周に
はダストブーツ４が取付けられている。In FIGS. 1 to 4, reference numeral 3 denotes a bound bumper body made of urethane foam, and a dust boot 4 is attached to the outer periphery of the lower end of the bound bumper body 3. As shown in FIGS.
パウンドバンバ本体３はショックアブソーバ１のピスト
ンロッド２が挿通される挿通孔７を備えると共に内外の
周壁は荷重変形特性を高める丸めに波形状に成形されて
いる。また、バウンドバンバ本体３のスプリングシート
６当接面としての上面３ａには第２図に示すように挿通
孔７の両側に一対と、挿通孔７を中心としてクロス状に
突部としての突条８が合計８カ所配設され、スプリング
シート６の下面との接触面積を小さくしである。The pound bumper main body 3 includes an insertion hole 7 through which the piston rod 2 of the shock absorber 1 is inserted, and the inner and outer peripheral walls are formed into a round wave shape to enhance load deformation characteristics. In addition, on the upper surface 3a of the bound bumper body 3 as the contact surface for the spring seat 6, as shown in FIG. 8 are disposed at a total of eight locations to reduce the contact area with the lower surface of the spring seat 6.
そして、上記各突条８のバウンドバンパ本体３の外周端
側は、基部側が斜状にカットされて切欠部９が設けられ
ている。The outer peripheral end side of the bound bumper main body 3 of each of the protrusions 8 is cut obliquely on the base side, and a notch 9 is provided.
尚、上記突条８の高さＨは１．０〜５．０箇、厚さＬは
０．５〜５．０ｍ に設定するのが望ましい。また、
上記挿通孔７の内周壁には挿通方向に半円形状の凹部１
０が形成されている。It is preferable that the height H of the protrusion 8 is set to 1.0 to 5.0 m, and the thickness L thereof is set to 0.5 to 5.0 m. Also,
The inner peripheral wall of the insertion hole 7 has a semicircular recess 1 in the insertion direction.
0 is formed.
以上の実施例構造によれば、車両走行時にサスペンショ
ンに対して上方向に突き上げ力がかかると、この突き上
げ力は図外のコイルスプリングによシ吸収されると共に
バウンドバンパ本体３がスプリングシート６に圧接され
て縮少することによっても十分に吸収され良好な乗シご
こち感が確保される。According to the structure of the above embodiment, when an upward thrust force is applied to the suspension while the vehicle is running, this thrust force is absorbed by the coil spring (not shown) and the bound bumper body 3 is moved to the spring seat 6. Even when the material is compressed and compressed, it is sufficiently absorbed and a good feeling of riding comfort is ensured.
また、車両操舵時等にスプリングシート６とバウンドバ
ンパ本体３とが当接している状態で横方向に力が作用し
両者にずれを生じたとしてもスプリングシート６の下面
に当接しているバウンドバンバ本体３上面３ａの突条８
の接触面積が小さいため、こすれ音等の異音が生ずるこ
とはカい。Furthermore, even if a force is applied in the lateral direction while the spring seat 6 and the bound bumper main body 3 are in contact with each other during vehicle steering and the like, causing a shift between the two, the bound bumper body 3 that is in contact with the lower surface of the spring seat 6 Projection 8 on top surface 3a of main body 3
Since the contact area is small, there is no chance of any abnormal noises such as scraping.
また、第５，６図に示すのはこの発明の他の実施例のバ
ウンドバンパ本体３であシ、このバウンドバンパ本体３
においては、上面３ｍに設ける突部として環状突条８Ａ
ｆ、二重に設けたものである。5 and 6 show a bound bumper body 3 according to another embodiment of the present invention.
In this case, an annular protrusion 8A is provided as a protrusion on the upper surface 3m.
f, it is double installed.
次に、第７，８図に示すのは、この発明の他の実施例の
バウンドバンバ本体３であシ、このパウンドバンパ本体
３にあっては、突部として同意円上であって所定間隔に
複数の突起８Ｂを設けたものである。Next, FIGS. 7 and 8 show a bound bumper body 3 according to another embodiment of the present invention. In this pound bumper body 3, the protrusions are on the same circle and are spaced at predetermined intervals. A plurality of protrusions 8B are provided.
尚、上記第５〜８図に示す各実施例においては、前述実
施例と同一部分については同一符号を付して説明を省略
する。In each of the embodiments shown in FIGS. 5 to 8, the same parts as those in the previous embodiment are designated by the same reference numerals, and the explanation thereof will be omitted.
発明の効果
以上説明してきたようにこの発明によれば、ショックア
ブソーバのピストンロッドの挿通孔を有すると共にコイ
ルスプリングを受けるスプリングシート下面に尚接する
バウンドパンバ本体のスプリングシート当接面に突部が
設けられていることによシ、バウンドバンパ本体のスプ
リングシート下面に対する接触面積が小さくなシ、した
がって、車両操舵時にスプリングシート下面とバウンド
バンパ本体に横ずれを生じた場合であってもこすれ音等
の異音が発生することはなく商品品質をよシ一層高めら
れるという実用上多大な効果を有する。Effects of the Invention As described above, according to the present invention, a protrusion is provided on the spring seat contacting surface of the bound pump body which has an insertion hole for the piston rod of the shock absorber and is in contact with the lower surface of the spring seat that receives the coil spring. Due to this, the contact area of the bound bumper body with the bottom surface of the spring seat is small. Therefore, even if there is a lateral shift between the bottom surface of the spring seat and the bound bumper body when the vehicle is steered, abnormal noises such as rubbing noises may occur. This has a great practical effect in that it does not occur and the quality of the product can be further improved.
第１〜８図は、この発明の実施例を示し、第１図はダス
トブーツを取付けた状態の斜視図、第２図は平面図、第
３図は第２図の■−■断面図、第４図は第２図のＩＶ−
ＩＶ断面図、第５図は他の実施例の平面図、第６図は第
５図のＶＩ−ＶＩ断面図、第７図は別の実施例の平面図
、第８図は第７図の■−■断面図、第９図は従来技術の
断面図である。
１・・・ショックアブソーバ、２・・・ピストンロッド
、３・・・バウンドバンパ本体、３＆・・・上面（当接
面）、５・・・コイルスプリング、６・・・スプリング
シート、８・・・突条（突部）、８Ａ・・・環状突条（
突部）、８Ｂ・・・突起（突部）。1 to 8 show embodiments of the present invention, FIG. 1 is a perspective view with a dust boot attached, FIG. 2 is a plan view, and FIG. 3 is a sectional view taken along Figure 4 is IV- of Figure 2.
5 is a plan view of another embodiment, FIG. 6 is a VI-VI sectional view of FIG. 5, FIG. 7 is a plan view of another embodiment, and FIG. 8 is a plan view of another embodiment. 9 is a sectional view of the prior art. DESCRIPTION OF SYMBOLS 1...Shock absorber, 2...Piston rod, 3...Bound bumper body, 3&...Top surface (contact surface), 5...Coil spring, 6...Spring seat, 8...・Protrusion (protrusion), 8A... annular protrusion (
protrusion), 8B... protrusion (protrusion).
Claims (1)
有すると共にコイルスプリングを受けるスプリングシー
ト下面に当接するバウンドバンパ本体のスプリングシー
ト当接面に突部が設けられていることを特徴とするウレ
タンバウンドバンパ。(1) A urethane bound bumper having an insertion hole for a piston rod of a shock absorber and having a protrusion provided on a spring seat contacting surface of a bound bumper body that contacts the lower surface of a spring seat that receives a coil spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5639286A JPS62215137A (en) | 1986-03-14 | 1986-03-14 | Urethane bound bumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5639286A JPS62215137A (en) | 1986-03-14 | 1986-03-14 | Urethane bound bumper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62215137A true JPS62215137A (en) | 1987-09-21 |
| JPH0356333B2 JPH0356333B2 (en) | 1991-08-28 |
Family
ID=13025946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5639286A Granted JPS62215137A (en) | 1986-03-14 | 1986-03-14 | Urethane bound bumper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62215137A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0292709A (en) * | 1988-09-27 | 1990-04-03 | Kinugawa Rubber Ind Co Ltd | Bound bumper for vehicle |
| JP2002181102A (en) * | 2000-12-15 | 2002-06-26 | Nippon Mektron Ltd | Bump stopper |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS571927U (en) * | 1980-06-05 | 1982-01-07 | ||
| JPH0356333A (en) * | 1989-07-24 | 1991-03-11 | Ricoh Co Ltd | Two stage paper feed apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS571927B2 (en) * | 1975-02-12 | 1982-01-13 |
-
1986
- 1986-03-14 JP JP5639286A patent/JPS62215137A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS571927U (en) * | 1980-06-05 | 1982-01-07 | ||
| JPH0356333A (en) * | 1989-07-24 | 1991-03-11 | Ricoh Co Ltd | Two stage paper feed apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0292709A (en) * | 1988-09-27 | 1990-04-03 | Kinugawa Rubber Ind Co Ltd | Bound bumper for vehicle |
| JP2002181102A (en) * | 2000-12-15 | 2002-06-26 | Nippon Mektron Ltd | Bump stopper |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0356333B2 (en) | 1991-08-28 |
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