JPH0330015B2 - - Google Patents
Info
- Publication number
- JPH0330015B2 JPH0330015B2 JP58233341A JP23334183A JPH0330015B2 JP H0330015 B2 JPH0330015 B2 JP H0330015B2 JP 58233341 A JP58233341 A JP 58233341A JP 23334183 A JP23334183 A JP 23334183A JP H0330015 B2 JPH0330015 B2 JP H0330015B2
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- stopper part
- vibration
- stopper
- circumferential surface
- 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
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
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/387—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、自動車のエンジンマウント用ブツ
シユの改良に関する。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION This invention relates to improvements in bushings for mounting automobile engines.
従来の技術とその問題点
周知のように、自動車のエンジンを車体に支持
させるにあたつては、防振体たるマウントブツシ
ユを介して弾性支持させるのが通常であり、その
ためのマウントブツシユとして例えば第１図に示
す構造のものが知られている（特開昭58−50395
号公報）。このマウントブツシユ１は、エンジン
側に連結される外筒２と、外筒２内に偏心配置さ
れ、かつ車体側に連結される内筒３と、これら内
外筒間に充填接着された略山形状の防振ゴム体４
とからなり、防振ゴム体４には、内筒３を挟んで
ほぼ対向する位置に略円弧状の空〓部５，６を形
成し、さらに空〓部６側の外筒内周面にはストツ
パー部７を形成してある。Conventional technology and its problems As is well known, when an automobile engine is supported on the vehicle body, it is normally supported elastically through a mount bushing that serves as a vibration isolator. For example, the structure shown in Figure 1 is known (Japanese Patent Laid-Open No. 58-50395).
Publication No.). This mount bushing 1 consists of an outer cylinder 2 connected to the engine side, an inner cylinder 3 arranged eccentrically within the outer cylinder 2 and connected to the vehicle body side, and a substantially mountainous portion filled and bonded between these inner and outer cylinders. Anti-vibration rubber body 4
The anti-vibration rubber body 4 has substantially arc-shaped hollow parts 5 and 6 formed at positions substantially opposite to each other with the inner cylinder 3 in between, and is further formed on the inner circumferential surface of the outer cylinder on the side of the hollow part 6. A stopper portion 7 is formed.
このようなマウントブツシユにあつては、エン
ジンの静的負荷（荷重）が作用することによつて
内筒３が空〓部６側に移動し、内筒３が外筒２と
ほぼ同心状となることによつて防振効果を発揮す
る。 In such a mount bushing, the inner cylinder 3 moves toward the hollow part 6 due to the static load of the engine, and the inner cylinder 3 is almost concentric with the outer cylinder 2. This results in an anti-vibration effect.
ところで、上記のマウントブツシユの荷重−た
わみ特性についてみた場合、第３図の破線で示す
ように対接面４ａがストツパー部７に当たつたＰ
点以後は線形となるものの、Ｐ点に至るまではほ
とんど線形とならない。これは過渡的にばね定数
が変化することを意味するものであるが、さらに
ばね定数とエンジンのロール角との関係について
見た場合、ばね定数の変化に伴つてエンジンのロ
ール剛性が変動することから、マウントブツシユ
本来の振動減衰性能、とりわけ第４図の斜線部で
示すように発進時や加減速時等の実用領域におけ
る振動減衰性能が悪化することになつて好ましく
ない。ここで、エンジンのロールとは、車体前後
方向における水平軸回りにエンジンが揺動する現
象をいう。 By the way, when looking at the load-deflection characteristics of the above-mentioned mount bushing, as shown by the broken line in FIG.
Although it becomes linear after the point, it is hardly linear until it reaches the P point. This means that the spring constant changes transiently, but when we look at the relationship between the spring constant and the engine roll angle, we find that the engine roll stiffness changes as the spring constant changes. Therefore, the inherent vibration damping performance of the mount bushing, especially the vibration damping performance in practical areas such as when starting, accelerating and decelerating, as shown by the shaded area in FIG. 4, deteriorates, which is undesirable. Here, engine roll refers to a phenomenon in which the engine swings around a horizontal axis in the longitudinal direction of the vehicle body.
発明の目的
この発明は以上のような問題点に鑑みてなされ
たもので、前述したばね特性を線形にすることに
よつて振動減衰性能を向上させることを目的とす
る。Purpose of the Invention The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to improve vibration damping performance by making the spring characteristics described above linear.
発明の構成
この目的のため本発明においては、防振ゴム体
の頂部と対向する外筒の内周面には、頂部との間
に略円弧状の空〓部を隔てて防振ゴム製のリバウ
ンドストツパーを形成する一方、防振ゴム体の反
頂部側の面と対向する外筒の内周面には、反頂部
側の面との間に略円弧状の空〓部を隔てて防振ゴ
ム製の第１のストツパー部を山形状に突出形成
し、第１のストツパー部の内部には、第１のスト
ツパー部の間に略円弧状の空〓部を隔てて第１の
ストツパー部と相似形をなす防振ゴム製の第２の
ストツパー部を外筒の内周面から突出形成したこ
とを特徴としている。Structure of the Invention For this purpose, in the present invention, a vibration-proof rubber body is provided on the inner peripheral surface of the outer cylinder facing the top of the vibration-proof rubber body, with a substantially arc-shaped hollow space between the top and the top. While forming a rebound stopper, on the inner circumferential surface of the outer cylinder facing the surface opposite to the top of the vibration isolating rubber body, a substantially arc-shaped hollow part is provided between the surface opposite to the top and the rebound stopper. A first stopper part made of vibrating rubber is formed in a protruding mountain shape, and inside the first stopper part, a substantially arc-shaped hollow part is separated between the first stopper parts. It is characterized in that a second stopper part made of anti-vibration rubber and having a similar shape is formed to protrude from the inner circumferential surface of the outer cylinder.
実施例
以下、この発明のより具体的な一実施例を図面
に基づき説明する。Embodiment Hereinafter, a more specific embodiment of the present invention will be described based on the drawings.
第２図に示すように、マウントブツシユ１０の
外筒１１内にはこの外筒１１の内部空間を直径方
向に横断するようにして略山形状の防振ゴム体１
２がブリツジ状に充填配置されている。そして、
外筒１１に対し偏心した内筒１３が防振ゴム体１
２に埋設されるようにして支持されている。 As shown in FIG. 2, within the outer cylinder 11 of the mount bushing 10 is provided a substantially mountain-shaped vibration isolating rubber body 1 that traverses the internal space of the outer cylinder 11 in the diametrical direction.
2 are arranged in a bridge-like manner. and,
The inner cylinder 13 that is eccentric with respect to the outer cylinder 11 is the anti-vibration rubber body 1.
It is supported by being buried in 2.
防振ゴム体１２の頂部１４と対向する外筒１１
の内周面には、頂部１４との間に略円弧状の空〓
部１５を隔てて防振ゴム製のリバウンドストツパ
ー１６が形成されている。一方、防振ゴム体１２
の反頂部側の面１７と対向する外筒筒１１の内周
面には、反頂部側の面１７との間に略円弧状の空
〓部１８を隔てて防振ゴム製の第１のストツパー
部１９が山形状の突出形成されている。 Outer cylinder 11 facing the top 14 of the vibration isolating rubber body 12
There is a substantially arc-shaped space between the inner circumferential surface of the
A rebound stopper 16 made of anti-vibration rubber is formed across the portion 15. On the other hand, the vibration-proof rubber body 12
On the inner circumferential surface of the outer cylindrical tube 11 facing the surface 17 on the side opposite to the top, there is a first groove made of anti-vibration rubber with a substantially arc-shaped hollow part 18 separated from the surface 17 on the side opposite to the top. The stopper portion 19 is formed in a protruding mountain shape.
そして、第１のストツパー部１９の内側には、
第１のストツパー部１９との間に略円弧状の空〓
部２０を隔てて、第１のストツパー部１９と相似
形すなわち山形状をなす防振ゴム製の第２のスト
ツパー部２１が外筒１１の内周面から突出形成さ
れているものである。 And, inside the first stopper part 19,
A substantially arc-shaped space is formed between the first stopper part 19 and the first stopper part 19.
A second stopper part 21 made of anti-vibration rubber and having a similar shape to the first stopper part 19, that is, a mountain shape, is formed to protrude from the inner circumferential surface of the outer cylinder 11, with the second stopper part 20 being separated from the first stopper part 19.
このような構造によると、外筒１１がエンジン
側に、内筒１３が車体側にそれぞれ連結されるこ
とから、例えば第２図において上下方向の振動入
力があつた場合に、防振ゴム体１２の撓み量に応
じて先ずその反頂部側の面１７が第１のストツパ
ー部１９の頂部２２に当接することにより第１の
ストツパー部１９が撓み、次いで第１のストツパ
ー部１９の内周面が第２のストツパー部２１に当
接することで第２のストツパー部２１が撓むこと
になり、荷重−たわみ特性としては第３図の実線
で示すように線形となる。したがつて、ばね定数
とエンジンのロール角との関係についても第４図
の実線で示すものとなり、特に前述した実用領域
における振動減衰性能が向上することになる。 According to such a structure, since the outer cylinder 11 is connected to the engine side and the inner cylinder 13 is connected to the vehicle body side, for example, when vertical vibration input is applied as shown in FIG. First, the surface 17 on the side opposite to the top contacts the top 22 of the first stopper 19, so that the first stopper 19 is deflected, and then the inner circumferential surface of the first stopper 19 is bent. The second stopper part 21 is deflected by coming into contact with the second stopper part 21, and the load-deflection characteristic becomes linear as shown by the solid line in FIG. Therefore, the relationship between the spring constant and the roll angle of the engine is also as shown by the solid line in FIG. 4, and the vibration damping performance is particularly improved in the above-mentioned practical range.
また、第１のストツパー部１９に対して斜め方
向から振動入力があつた場合には、第１、第２の
ストツパー部１９，２１がいずれも山形状をして
いるために、第１のストツパー部１９がせん断・
圧縮変形すると同時に第２のストツパー部２１が
圧縮変形し、上記と同様に荷重−たわみ特性の線
形性を確保できる。 Furthermore, when a vibration input is applied to the first stopper part 19 from an oblique direction, since both the first and second stopper parts 19 and 21 have a mountain shape, the first stopper part 19 Part 19 is sheared.
At the same time as the compressive deformation, the second stopper portion 21 is compressively deformed, and the linearity of the load-deflection characteristic can be ensured in the same manner as described above.
発明の効果
以上のように本発明によれば、防振ゴム体の頂
部と対向する外筒の内周面には、頂部との間に略
円弧状の空〓部を隔てて防振ゴム製のリバウンド
ストツパーを形成する一方、防振ゴム体の反頂部
側の面と対向する外筒の内周面には、反頂部側の
面との間に略円弧状の空〓部を隔てて防振ゴム製
の第１のストツパー部を山形状に突出形し、第１
のストツパー部の内部には、第１のストツパー部
との間に略円弧状の空〓部を隔てて第１のストツ
パー部と相似形をなす防振ゴム製の第２のストツ
パー部を外筒の内周面から突出形成したことによ
り、マウントブツシユとしてのばね特性が従来と
比べて一段と線形に近いものとなるため、特に発
進時や加減速時等の実用領域における振動減衰性
能が大幅に向上する。また、各ストツパー部を山
形状に形成したことによつて、各ストツパー部に
対して斜め方向から振動入力があつたとしても荷
重−たわみ特性の線形性を確保でき、これによつ
てもまた振動減衰性能が向上する。Effects of the Invention As described above, according to the present invention, the inner circumferential surface of the outer cylinder facing the top of the vibration isolating rubber body is made of vibration isolating rubber with a substantially arc-shaped hollow space separated from the top. On the other hand, on the inner peripheral surface of the outer cylinder facing the surface opposite to the anti-top side of the vibration isolating rubber body, a substantially arc-shaped hollow part is provided between the surface opposite to the anti-top side. The first stopper part made of anti-vibration rubber is protruded into a mountain shape, and the first stopper part is made of anti-vibration rubber.
Inside the stopper part, a second stopper part made of anti-vibration rubber and having a similar shape to the first stopper part is installed with a substantially arc-shaped hollow part separated from the first stopper part. By protruding from the inner circumferential surface of the mount bushing, the spring characteristics of the mount bushing become more linear than before, which greatly improves vibration damping performance, especially in practical areas such as when starting, accelerating and decelerating. improves. In addition, by forming each stopper part into a mountain shape, even if vibration input is applied to each stopper part from an oblique direction, the linearity of the load-deflection characteristics can be ensured. Damping performance is improved.
第１図は従来のエンジンマウント用ブツシユの
一例を示す断面図、第２図は本発明の一実施例を
示す断面図、第３図はエンジンマウント用ブツシ
ユの荷重−たわみ特性を示す図、第４図は同じく
ばね定数とエンジンのロール角との関係を示す図
である。
１０…マウントブツシユ、１１…外筒、１２…
防振ゴム体、１３…内筒、１４…頂部、１５，１
８，２０…空〓部、１６…リバウンドストツパ
ー、１７…反頂部側の面、１９…第１のストツパ
ー部、２１…第２のストツパー部。
Fig. 1 is a sectional view showing an example of a conventional engine mount bushing, Fig. 2 is a sectional view showing an embodiment of the present invention, Fig. 3 is a diagram showing load-deflection characteristics of the engine mount bushing, Similarly, FIG. 4 is a diagram showing the relationship between the spring constant and the roll angle of the engine. 10...Mount bush, 11...Outer cylinder, 12...
Vibration-proof rubber body, 13... Inner cylinder, 14... Top, 15, 1
8, 20... Empty part, 16... Rebound stopper, 17... Surface opposite to the top, 19... First stopper part, 21... Second stopper part.
Claims (1)
断する山形状の防振ゴム体をブリツジ状に配置す
るとともに、外筒に対し偏心した内筒を防振ゴム
体に支持させ、エンジンの静的荷重が作用したと
きに前記外筒と内筒とが相対変位して両者がほぼ
同心状になるように構成されたエンジンマウント
用ブツシユにおいて、 防振ゴム体の頂部と対向する外筒の内周面には
頂部との間に略円弧状の空〓部を隔てて防振ゴム
製のリバウンドストツパーを形成する一方、 防振ゴム体の反頂部側の面と対向する外筒の内
周面には、反頂部側の面との間に略円弧状の空〓
部を隔てて防振ゴム製の第１のストツパー部を山
形状に突出形成し、 第１のストツパー部の内部には、第１のストツ
パー部との間に略円弧状の空〓部を隔てて第１の
ストツパー部と相似形をなす防振ゴム製の第２の
ストツパー部を外筒の内周面から突出形成したこ
とを特徴とするエンジンマウント用ブツシユ。[Scope of Claims] 1. A mountain-shaped anti-vibration rubber body is disposed in the outer cylinder in a bridge shape that traverses the internal space of the outer cylinder in the diametrical direction, and an inner cylinder eccentric to the outer cylinder is arranged as a vibration-isolating rubber body. An engine mount bushing is supported on a body, and is configured such that when a static load of the engine is applied, the outer cylinder and the inner cylinder are relatively displaced so that they become substantially concentric, On the inner circumferential surface of the outer cylinder facing the top, a rebound stopper made of anti-vibration rubber is formed with a substantially arc-shaped hollow space separated from the top. On the inner circumferential surface of the outer cylinder facing the
A first stopper part made of anti-vibration rubber is formed protrudingly in the shape of a mountain, and a substantially arc-shaped hollow part is provided inside the first stopper part between the first stopper part and the first stopper part. A bush for an engine mount, characterized in that a second stopper part made of anti-vibration rubber and having a similar shape to the first stopper part is formed to protrude from the inner circumferential surface of the outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23334183A JPS60125430A (en) | 1983-12-09 | 1983-12-09 | Bush for engine mound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23334183A JPS60125430A (en) | 1983-12-09 | 1983-12-09 | Bush for engine mound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60125430A JPS60125430A (en) | 1985-07-04 |
| JPH0330015B2 true JPH0330015B2 (en) | 1991-04-26 |
Family
ID=16953627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23334183A Granted JPS60125430A (en) | 1983-12-09 | 1983-12-09 | Bush for engine mound |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60125430A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6165935A (en) * | 1984-09-07 | 1986-04-04 | Tokai Rubber Ind Ltd | Bush type engine mount with liquid |
| JP3661060B2 (en) * | 2000-09-20 | 2005-06-15 | 東洋ゴム工業株式会社 | Vibration isolator |
| DE102005047018B4 (en) * | 2005-09-30 | 2014-05-08 | Carl Freudenberg Kg | Elastomeric bearing with hydraulic damping |
| JP4695584B2 (en) * | 2006-12-14 | 2011-06-08 | 東洋ゴム工業株式会社 | Vibration isolator |
| JP5391114B2 (en) * | 2010-03-15 | 2014-01-15 | 倉敷化工株式会社 | Vibration isolator set and manufacturing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS597601Y2 (en) * | 1978-09-11 | 1984-03-08 | 株式会社不二越 | Flow rate adjustment valve with built-in rotary switching valve |
| JPS5850395A (en) * | 1981-09-21 | 1983-03-24 | 日産自動車株式会社 | Supporter |
-
1983
- 1983-12-09 JP JP23334183A patent/JPS60125430A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60125430A (en) | 1985-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4786036A (en) | Resilient bushing structure filled with viscous fluid | |
| JP2642028B2 (en) | Switchable mount | |
| JPS6361536B2 (en) | ||
| JPH0457905B2 (en) | ||
| JP4171182B2 (en) | Engine mount | |
| JPH0330015B2 (en) | ||
| JP2894497B2 (en) | Anti-vibration device | |
| JPS60157539A (en) | Vibration-damping bushing | |
| JP3009402B2 (en) | Anti-vibration device | |
| JP2000337426A (en) | Fluid-filled cylindrical mount | |
| JPH04211742A (en) | Manufacture of liquid charged cylindrical vibration damper bushing | |
| JPH10132016A (en) | Liquid filling type vibration control mount | |
| JPS60151436A (en) | Mount insulator | |
| JPH0721937Y2 (en) | Liquid-filled mount | |
| JPH0716129Y2 (en) | Liquid-filled mount | |
| JPH06330983A (en) | Liquid-sealed type vibration isolating support device | |
| KR970001451Y1 (en) | Liquid-sealed insulators for engine mounting of automobiles | |
| JPS6317865Y2 (en) | ||
| JPH0534350Y2 (en) | ||
| JP2597075Y2 (en) | Liquid filled bush | |
| JPH0534351Y2 (en) | ||
| JP2678705B2 (en) | Fluid-filled cylindrical mount | |
| JPH05164163A (en) | Bush type vibration isolator | |
| JP3695619B2 (en) | Liquid filled vibration isolator | |
| JP3165222B2 (en) | Liquid-filled anti-vibration mount |