JPS6264623A - Support device for power unit - Google Patents

Support device for power unit

Info

Publication number
JPS6264623A
JPS6264623A JP20553585A JP20553585A JPS6264623A JP S6264623 A JPS6264623 A JP S6264623A JP 20553585 A JP20553585 A JP 20553585A JP 20553585 A JP20553585 A JP 20553585A JP S6264623 A JPS6264623 A JP S6264623A
Authority
JP
Japan
Prior art keywords
power unit
thickness
vehicle body
support device
insulator
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
Application number
JP20553585A
Other languages
Japanese (ja)
Other versions
JPH0574489B2 (en
Inventor
Takanobu Ide
井手 孝信
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP20553585A priority Critical patent/JPS6264623A/en
Publication of JPS6264623A publication Critical patent/JPS6264623A/en
Publication of JPH0574489B2 publication Critical patent/JPH0574489B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/36Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38Springs 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
    • F16F1/387Springs 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)
  • Arrangement Of Transmissions (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)

Abstract

PURPOSE:To improve the engine shake by allowing an elastic member of a power unit support device to be inclined to the longitudinal direction of a car body and also by allowing the thickness of the member to be made different between one end and the other end of the member. CONSTITUTION:In a mounting device 15, an outer ring 15b is connected with a car body member 14 by way of a bracket 15d, an inner ring 15c is connected with a power unit by way of a bracket 10a, and an elastic member 15a joins the inner ring 15c with the outer ring 15b. And the elastic member 15a is inclined by the angle of theta deg. to the longitudinal direction of a car body from the vertical direction, and the member is formed so that the thickness 'a' of one end is made different from the thickness 'b' of the other end.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はパワーユニットの支持装置、詳しくは、エンジ
ンと変速機等を連結したパワーユニットを車体に支持す
るパワーユニットの支持装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a power unit support device, and more particularly, to a power unit support device for supporting a power unit in which an engine, a transmission, etc. are connected to a vehicle body.

(従来の技術) このようなパワーユニットの支持装置としては従来、た
とえば第4.5図に示されたようなものがあるにッサン
マーチ 整備要領書第B−4頁、1982年発行)。
(Prior Art) Conventionally, there is a support device for such a power unit as shown in FIG. 4.5 (Nissan March Maintenance Manual, page B-4, published in 1982).

第4図において1、図中下方(矢印A)は車体前方であ
り、パワーユニット1は、左右マウント装置2.3およ
びリヤマウント装置5を介して車体メンバ4に支持され
ている。そして、上記リヤマウント装置5は、第5図に
示すように、外筒5bがブラケットを介して車体メンバ
4に連結され、内筒5cがブラケットを介してパワーユ
ニットに連結され、弾性部材5aが車両前後方向に傾斜
配置されて、内筒5c、外筒5b間を連結して、エンジ
ンロールを充分許容すると共に、路面凹凸により上下入
力が働いたとき、この入力 エンジンが上下共m(シェ
イク)しようとするが、本マウント装置5は傾斜してい
るため、前後方向へも上記入力を分散させ、共振ピーク
を低減させるようにしている。
In FIG. 4, the lower part (arrow A) in the figure is the front of the vehicle body, and the power unit 1 is supported by the vehicle body member 4 via the left and right mount devices 2.3 and the rear mount device 5. In the rear mount device 5, as shown in FIG. It is arranged inclined in the longitudinal direction and connects the inner cylinder 5c and the outer cylinder 5b to allow sufficient engine roll, and when vertical input is applied due to uneven road surface, this input engine shakes both the upper and lower sides. However, since the mounting device 5 is tilted, the above-mentioned input is also dispersed in the front-rear direction, thereby reducing the resonance peak.

(発明が解決しようとする問題点) しかしながら、このような従来のパワーユニットの支持
装置にあっては、マウント装置5のインシュレータ(弾
性体)5aは車体前後方向に傾けて配置されているが、
そのインシュレータの厚さが、一方の半径方向部分と、
他方の半径方向部分とで同じ構造になっているため、上
下人力時、内筒と外筒とを連結しているインシュレータ
の各部分が、夫々外筒への取付部を中心に内筒を旋回さ
せるように働き、この両作用が互いに干渉して充分に意
図した方向へ内筒を案内できず、内筒の前後方向へ移動
化が小さくなって、第3図破線2の如く共振ピークを低
減できない問題点があった。
(Problems to be Solved by the Invention) However, in such a conventional power unit support device, the insulator (elastic body) 5a of the mount device 5 is arranged at an angle in the longitudinal direction of the vehicle body.
The thickness of the insulator is such that one radial portion and
Since it has the same structure as the other radial part, each part of the insulator that connects the inner cylinder and the outer cylinder rotates around the inner cylinder around the attachment point to the outer cylinder when the vertical part is manually operated. These two actions interfere with each other, making it impossible to guide the inner cylinder sufficiently in the intended direction, and the movement of the inner cylinder in the front-rear direction becomes smaller, reducing the resonance peak as shown by broken line 2 in Figure 3. There was a problem that I couldn't do it.

(問題点を解決するための手段) そこで本発明は前記問題点を解決するため、パワーユニ
ット又は車体の一方に連結する外側部材と、他方に連結
する内側部材と、前記外側部材と内側部材とを半径方向
2ケ所で連結する弾性体を備えたパワーユニットの支持
装置において、前記弾性体を車体上下方向に対して車体
前後方向に傾斜させると共に該弾性体の厚さを、一端部
と他端部との間で異ならしめて設けた構成とした。
(Means for Solving the Problems) Therefore, in order to solve the above-mentioned problems, the present invention includes an outer member connected to one of the power unit or the vehicle body, an inner member connected to the other, and the outer member and the inner member. In a support device for a power unit including an elastic body connected at two points in a radial direction, the elastic body is inclined in the longitudinal direction of the vehicle body with respect to the vertical direction of the vehicle body, and the thickness of the elastic body is set at one end and the other end. The structure was designed to differ between the two.

(作用) このようなパワーユニットの支持装置によれば、弾性体
の厚さが一方で厚く、他方で薄くなっているため内側部
材を、一方の弾性体により、他方の弾性体に大きく規制
されずに充分案内できるためタイヤ側からの振動入力に
よるパワーユニットの上下振動を前後振動に充分に連成
させて振動エネルギを効果的に分散させ、エンジンシェ
イクを改善することができる。
(Function) According to such a support device for a power unit, since the thickness of the elastic body is thick on one side and thin on the other side, the inner member is not greatly restricted by one elastic body and the other elastic body. Since the vertical vibration of the power unit caused by the vibration input from the tire side can be sufficiently coupled with the longitudinal vibration, the vibration energy can be effectively dispersed, and engine shake can be improved.

(実施例) 以下、本発明の実施例について図面に基づいて説明する
。第1〜2図は本発明によるパワーユニットの支持装置
の一実施例を示す図である。
(Example) Hereinafter, an example of the present invention will be described based on the drawings. 1 and 2 are diagrams showing an embodiment of a power unit support device according to the present invention.

第1図において、図中下方(矢印A)は車体前方であり
、エンジンと変速機等を連結したパワーュニッ)10は
車体幅方向に延在するよう配置された、いわゆる横置き
エンジンである。パワーユニット10の左右両端部は、
マウント装置(パワーユニットの支持装置)12.13
を介してサイドメンバ等の車体部材14に支持されてい
るゆパワーユニット10の後部(図中上部)はマウント
装置(パワーユニットの支持袋W)15を介して他の車
体部材14に連結されている。マウント装置15は第2
図に示すように、外筒15bがブラケフ)15dを介し
て車体部材14に連結され、内筒15Cがブラケフ)1
0aを介してパワーユニットIOに連結され、弾性部材
15aが内筒5cs外筒5b間を連結している。そして
、弾性部材15a (マウントインシュレータ)は車体
上下方向に対して車体前後方向にθ°傾斜させて設けら
れている。さらに、インシュレータ15aの一端部の厚
さaと他端部の厚さbとを異ならせて形成している。尚
、15e、15fは外筒15b内面に設けたストッパ部
である。
In FIG. 1, the lower part (arrow A) in the figure is the front of the vehicle body, and a power unit 10 that connects the engine, transmission, etc. is a so-called horizontal engine arranged so as to extend in the width direction of the vehicle body. Both left and right ends of the power unit 10 are
Mounting device (power unit support device) 12.13
The rear part (upper part in the figure) of the power unit 10 supported by a vehicle body member 14 such as a side member is connected to another vehicle body member 14 via a mounting device (power unit support bag W) 15. The mounting device 15 is the second
As shown in the figure, the outer cylinder 15b is connected to the vehicle body member 14 via the brake cylinder 15d, and the inner cylinder 15C is connected to the car body member 14 via the brake cylinder 15d.
It is connected to the power unit IO via 0a, and an elastic member 15a connects the inner cylinder 5c and the outer cylinder 5b. The elastic member 15a (mount insulator) is provided so as to be inclined by θ° in the longitudinal direction of the vehicle body with respect to the vertical direction of the vehicle body. Further, the insulator 15a is formed so that the thickness a at one end thereof is different from the thickness b at the other end thereof. Note that 15e and 15f are stopper portions provided on the inner surface of the outer cylinder 15b.

このようなパワーユニットの支持装置において、路面凹
凸等により車体に上下入力が働くと、それに伴って、車
体にマウント装置12.13.15により弾性支持され
ているパワーユニット10は、所定の入力周波数状態で
上下に共振しようとする(シェイクと称され通常10H
z前後の周波数を持つ)が、本実施例にあっては、マウ
ント装置15のマウントインシュレータ15aが、車体
前後方向に傾斜して配置されており、且つ、マウントイ
ンシュレータ15aの一端部の厚さaを他端部の厚さb
より厚肉に形成しているため、パワーユニット10の上
下振動持前後にも振動させる分力を生じさせ、しかも、
その前後方向への分力が確実に発生する。
In such a power unit support device, when a vertical input is applied to the vehicle body due to unevenness of the road surface, etc., the power unit 10, which is elastically supported on the vehicle body by the mount device 12, 13, 15, is moved at a predetermined input frequency state. Trying to resonate up and down (called shake, usually 10H)
In this embodiment, the mount insulator 15a of the mount device 15 is arranged to be inclined in the longitudinal direction of the vehicle body, and the thickness a of one end of the mount insulator 15a is The thickness of the other end b
Since it is formed thicker, it generates a component force that causes the power unit 10 to vibrate before and after vertical vibration, and also,
The component force in the front and back direction is reliably generated.

即ち、インシュレータ15aに上下振動が入力されると
、インシュレータ15aの一端部はPを支点として軌跡
mに沿って倒れようとし、インシュレータ15aの他端
部はQを支点として軌跡nに沿って倒れようとするが、
前述のようにその一端部と他端部との間でその厚さをa
とbとに異ならしめたため、厚さの大きい(aの方)イ
ンシュレータ15aの一端部がPを支点に軌跡mに沿っ
て倒れる方が、厚さの小さい(bの方)他端部がQを支
点に軌跡nに沿って倒れようとする力に打勝ち、マウン
ト装置15の内筒15cはインシュレータ15aの一端
部とともに軌跡mに沿って回動変位する傾向を持つ。
That is, when vertical vibration is input to the insulator 15a, one end of the insulator 15a tends to fall down along a trajectory m with P as a fulcrum, and the other end of the insulator 15a tends to fall down along a trajectory n with Q as a fulcrum. However,
As mentioned above, the thickness between one end and the other end is a
and b are different, so that one end of the insulator 15a with the larger thickness (a) falls down along the trajectory m with P as the fulcrum, and the other end with the smaller thickness (b) The inner cylinder 15c of the mount device 15 has a tendency to rotate and displace along the trajectory m together with one end of the insulator 15a, overcoming the force of falling down along the trajectory n using the mount device 15 as a fulcrum.

尚本実施例では、更に内筒15cの軌跡mに沿って回動
変位する傾向を向上させるため、インシュレータ15a
の他端部の外筒への取付点Qを若干ずらせて軌跡nが前
記軌跡mと重なり合うようにしており、内筒15cの案
内特性は更に向上されたものとなっている。
In this embodiment, in order to further improve the tendency of the inner cylinder 15c to rotate along the trajectory m, the insulator 15a is
The attachment point Q of the other end to the outer cylinder is slightly shifted so that the locus n overlaps the aforementioned locus m, and the guiding characteristics of the inner cylinder 15c are further improved.

インシュレータ15aの一端部と他端部が前記実施例の
ように同じ厚さを有しているときは、矢印C方向(圧縮
方向)のばね剛性と矢印り方向(せん断方向)のばね剛
性との比に支配されて、内筒15cは矢印り方向に変位
するだけだったのに比べ、本実施例によれば、前述のよ
うにマウント装置15の一端部(厚さaの方)が他端部
に規制されることなく軌跡mに沿って倒れるよう変形す
るため、通常走行状態において前記上下共振と前後共振
の達成度を向上させてエンジンシェイクをさらに改善す
ることができる。
When the one end and the other end of the insulator 15a have the same thickness as in the above embodiment, the spring stiffness in the direction of arrow C (compression direction) and the spring stiffness in the direction of arrow C (shear direction) In contrast to the case where the inner cylinder 15c was only displaced in the direction indicated by the arrow, as described above, one end (thickness a) of the mount device 15 is displaced at the other end as described above. Since the deformation is performed so as to fall down along the trajectory m without being restricted by the parts, it is possible to improve the degree of achievement of the vertical resonance and longitudinal resonance and further improve engine shake in normal running conditions.

この場合において、インシュレータ15aの一端部の厚
さaと他端部の厚さbとの比率は、一端部の倒れを他端
部が拘束しない必要があり、実験の結果、他端部の厚さ
bが一端部の厚さaに対し、3/4以下とすることが望
ましく、この比率としたマウント装置15を実車(15
00ccの排気量を持つ車両)に適用して、車体フロア
部に生ずる振動加速度を測定した結果、第3図実線の如
きデータを得た。
In this case, the ratio of the thickness a of one end of the insulator 15a to the thickness b of the other end is such that the other end does not restrain the collapse of the one end. It is desirable that the thickness b is 3/4 or less of the thickness a of one end, and the mounting device 15 with this ratio is installed on an actual vehicle (15
As a result of applying this method to a vehicle (with a displacement of 0.00 cc) and measuring the vibration acceleration generated in the floor portion of the vehicle body, data as shown by the solid line in FIG. 3 was obtained.

この第3図において、低次側のピークは、車体に生ずる
前後振動のピークであり、高次側のピークは車体上下振
動のピークであり、充分に上下方向と前後方向との振動
の達成が行なわれていることが明らかで、且つ振動のピ
ーク値も破線で示した従来装置に比較して低減されてい
ることが理解できる。
In this Fig. 3, the peak on the lower side is the peak of longitudinal vibration occurring in the vehicle body, and the peak on the higher side is the peak of vertical vibration of the vehicle body, and it is not possible to achieve sufficient vibration in the vertical direction and longitudinal direction. It is clear that this is the case, and it can be seen that the peak value of vibration is also reduced compared to the conventional device shown by the broken line.

(発明の効果) 以上説明したように本発明によれば、弾性体を車体の上
下方向に対して車体前後方向に傾斜させて設けると共に
前記弾性体の厚さを一端部と他端部との間で異ならしめ
たため、路面側からの振動入力によりパワーユニットの
上下振動を、車体前後振動に確実に連成させ、振動エネ
ルギを確実に分散させてエンジンシェイクを改善するこ
とができる。
(Effects of the Invention) As explained above, according to the present invention, the elastic body is provided so as to be inclined in the longitudinal direction of the vehicle body with respect to the vertical direction of the vehicle body, and the thickness of the elastic body is set to be equal to the thickness of the elastic body at one end and the other end. This makes it possible to reliably couple the vertical vibration of the power unit with the longitudinal vibration of the vehicle body due to vibration input from the road surface, thereby reliably dispersing vibration energy and improving engine shake.

【図面の簡単な説明】[Brief explanation of the drawing]

第1〜2図は本発明によるパワーユニットの支持装置の
一実施例を示す図であり、第1図は全体配置図、第2図
は第1図におけるII−n矢視断面図、第3図は車両の
シェイク振動の周波数特性を示す図、第4.5図は従来
のパワーユニットの支持装置を示す図であり、第4図は
その全体配置図、第5図は第4図におけるマウント装置
5のv−■矢視図である。 10・・・・・・パワーユニット、 12.13.15・・・・・・マウント装置(パワーユ
ニットの支持装置)、 15a1・・・・・・インシュレータ(弾性体)、15
b・・・・・・外筒、 15C・・・・・・内筒、 14・・・・・・車体部材。
1 and 2 are diagrams showing one embodiment of a power unit support device according to the present invention, in which FIG. 1 is an overall layout, FIG. 2 is a sectional view taken along the line II-n in FIG. 1, and FIG. 4.5 is a diagram showing the frequency characteristics of shake vibration of a vehicle, FIG. 4.5 is a diagram showing a conventional power unit support device, FIG. 4 is its overall layout, and FIG. It is a v-■ arrow view of FIG. 10...Power unit, 12.13.15...Mount device (power unit support device), 15a1...Insulator (elastic body), 15
b...Outer cylinder, 15C...Inner cylinder, 14...Car body member.

Claims (2)

【特許請求の範囲】[Claims] (1)パワーユニット又は車体の一方に連結する外側部
材と、他方に連結する内側部材と、前記外側部材と内側
部材とを半径方向2ヶ所で連結する弾性体を備えたパワ
ーユニットの支持装置において、前記弾性体を車体上下
方向に対して車体前後方向に傾斜させて設けると共に、
前記弾性体の厚さを一端部と他端部との間で異ならしめ
たことを特徴とするパワーユニットの支持装置。
(1) A support device for a power unit comprising: an outer member connected to one of the power unit or the vehicle body; an inner member connected to the other; and an elastic body connecting the outer member and the inner member at two points in the radial direction. The elastic body is provided to be inclined in the longitudinal direction of the vehicle body with respect to the vertical direction of the vehicle body, and
A power unit support device characterized in that the elastic body has a different thickness between one end and the other end.
(2)前記弾性体の厚さは、一端部と他端部とで、4/
3以上異なっている特許請求の範囲第1項記載のパワー
ユニットの支持装置。
(2) The thickness of the elastic body is 4/4 at one end and the other end.
The power unit support device according to claim 1, which has three or more different types.
JP20553585A 1985-09-18 1985-09-18 Support device for power unit Granted JPS6264623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20553585A JPS6264623A (en) 1985-09-18 1985-09-18 Support device for power unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20553585A JPS6264623A (en) 1985-09-18 1985-09-18 Support device for power unit

Publications (2)

Publication Number Publication Date
JPS6264623A true JPS6264623A (en) 1987-03-23
JPH0574489B2 JPH0574489B2 (en) 1993-10-18

Family

ID=16508496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20553585A Granted JPS6264623A (en) 1985-09-18 1985-09-18 Support device for power unit

Country Status (1)

Country Link
JP (1) JPS6264623A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0260615U (en) * 1988-10-28 1990-05-07
JPH0377830U (en) * 1989-11-30 1991-08-06
JP2015025472A (en) * 2013-07-24 2015-02-05 株式会社ブリヂストン Vibration control device
DE102022112467A1 (en) 2022-05-18 2023-11-23 WEGU GmbH Schwingungsdämpfung Elastic bearing with asymmetrical arrangement of elastomer springs

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0260615U (en) * 1988-10-28 1990-05-07
JPH0377830U (en) * 1989-11-30 1991-08-06
JP2015025472A (en) * 2013-07-24 2015-02-05 株式会社ブリヂストン Vibration control device
DE102022112467A1 (en) 2022-05-18 2023-11-23 WEGU GmbH Schwingungsdämpfung Elastic bearing with asymmetrical arrangement of elastomer springs
DE102022112467B4 (en) 2022-05-18 2024-03-28 WEGU GmbH Schwingungsdämpfung Elastic bearing with asymmetrical arrangement of elastomer springs

Also Published As

Publication number Publication date
JPH0574489B2 (en) 1993-10-18

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