JP2004155325A

JP2004155325A - Power plant mount device

Info

Publication number: JP2004155325A
Application number: JP2002323221A
Authority: JP
Inventors: Shigeteru Matsuda; 栄輝松田; Junji Komatsu; 順二小松
Original assignee: Mitsubishi Motors Corp
Current assignee: Mitsubishi Motors Corp
Priority date: 2002-11-07
Filing date: 2002-11-07
Publication date: 2004-06-03
Anticipated expiration: 2022-11-07
Also published as: JP3896948B2

Abstract

<P>PROBLEM TO BE SOLVED: To easily change the mounting position of a mount member on a side member of a vehicle, when elastically supporting a power plant on the side member by the mount member. <P>SOLUTION: The mount member 30 makes the side member 2 of the vehicle support the power plant 1. In the mount member 30, an arm 31 of a supporting member 33 is fixed to the power plant 1 and a shaft part 32 at the other end is arranged within an outer cylinder 34, an insulator 35 is provided between the shaft part 32 and the outer cylinder 34, a flat plate shaped flange part 36 is fixed to the outer cylinder 34, the flange part 36 is mounted on an inside surface 37 by a stud bolt 38 and a nut 39 of the side member 2 inserting into an oblong hole of the flange part 36, and most of the shaft part 32, the outer cylinder 34 and the insulator 35 are arranged within the side member 2. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、車両のサイドメンバによってパワープラントを弾性支持する装置に関する。
【０００２】
【従来の技術】
車両における従来のパワープラントマウント装置は、図４〜図６に例示されているように、エンジン及びトランスミッションが一体的に結合されて横置きとされたパワープラント１の上部と車両前後方向に延びて閉断面構造である左サイドメンバ２との間に設置されたマウント部材３、パワープラント１の上部と車両前後方向に延びて閉断面構造である右サイドメンバ４との間に設置されたマウント部材５、及び、パワープラント１の下部とパワープラント１の車両後方で車幅方向に延びるシャシクロスメンバ６との間に跨がって設置されたロールロッドマウント部材７により構成され、マウント部材３とマウント部材５とロールロッドマウント部材７との上下３個所でパワープラント１を車体に支持させるようにしている。
【０００３】
マウント部材３は、断面略コ字状で底部が左サイドメンバ２の内側面に溶接され両先端が車幅方向内側へ突出するマウントブラケット１０と、間にゴム状弾性体からなるインシュレータ１１が設置された内筒１２及び外筒１３と、内筒１２内を挿通して車両前後方向に配置された状態でマウントブラケット１０の先端に両端部がそれぞれ係止されたボルト１４とから構成され、外筒１３のアーム１５がパワープラント１の上部にボルト止めされている。
【０００４】
マウント部材５は、間にゴム状弾性体からなるインシュレータが設置された図示しない内筒及び外筒１６と、その内筒内を挿通して上下方向に配置されアーム１７を介してパワープラント１の上部に固定された図示しないボルトとから構成され、外筒１６が右サイドメンバ４の上面にボルト止めされている。
【０００５】
ロールロッドマウント部材７は、シャシクロスメンバ６に固定されて車両前方に両先端が突出する二股状のマウントブラケット１８と、パワープラント１の下部に一端が連結されて他端に外筒１９が一体的に形成されたロッド２０と、図示しない内筒及び外筒１９間に設置されたゴム状弾性体からなるインシュレータ２１と、その内筒内を挿通して車幅方向に配置され両端部がマウントブラケット１８の両先端にそれぞれ係止されたボルト２２とから構成されて、パワープラント１がマウント部材３とマウント部材５とロールロッドマウント部材７とにより車体に上下３点で３軸支持されている。
【０００６】
しかしながら、パワープラント１の稼動から生じる振動や騒音をマウント部材３によって効果的に低減させるためには、左サイドメンバ２に対するマウント部材３の固定個所をパワープラント１の種類毎に最適位置へ設定する必要があるので、パワープラント１の種類毎にマウント部材３の固定位置を適宜変更した多種類の左サイドメンバ２を準備しなければならないという問題があった。
【０００７】
なお、車両におけるパワープラントマウント装置として、下記特許文献１及び特許文献２に記載されたものが従来から知られている。
【０００８】
【特許文献１】
特開２０００−１２０７７０号公報
【特許文献２】
特開平９−２４０２９１号公報
【０００９】
【発明が解決しようとする課題】
本発明は、車両のサイドメンバにマウント部材でパワープラントを弾性支持する場合に、サイドメンバに対するマウント部材の取付け位置を容易に変更できるようにしようとするものである。
【００１０】
【課題を解決するための手段】
このため、本発明にかかるパワープラントマウント装置は、車両前後方向に延びるサイドメンバとパワープラントとの間に設けられ軸部と外筒と上記軸部及び上記外筒間に環状に配置された弾性体とをそなえたマウント部材を有し、上記軸部及び上記外筒の少なくとも一部が上記サイドメンバ内に配置されて、上記軸部が上記パワープラントに連結されていると共に、上記外筒と一体的に形成されたフランジ部に長孔が設けられ、上記長孔を挿通するボルトによって上記フランジ部が上記サイドメンバに固定されている。
【００１１】
すなわち、マウント部材の軸部及び外筒の少なくとも一部がサイドメンバ内に配置されているため、サイドメンバの外方にマウント部材が設置されている場合と比較すると、マウント部材の設置に必要なスペースを容易に縮小することができて、マウント部材の設定場所に関する自由度を容易に大きくすることが可能となり、かつ、外筒と一体的に形成されたフランジ部の長孔を挿通するボルトによりフランジ部がサイドメンバに固定されていて、長孔内をボルトが相対的に移動することにより、サイドメンバに対するマウント部材の取付け位置を容易に適宜変更させることができる。
【００１２】
【発明の実施の形態】
以下、本発明の実施形態例について、前記従来装置との同等部分にはそれぞれ同一符号を付けて説明する。
【００１３】
図１〜図３において、車両用パワープラントマウント装置は、エンジン及びトランスミッションが一体的に結合されて横置きとされたパワープラント１の上部と車両前後方向に延びて閉断面構造である左サイドメンバ２との間に設置されたマウント部材３０、パワープラント１の上部と車両前後方向に延びて閉断面構造である右サイドメンバ４との間に設置されたマウント部材５、及び、パワープラント１の下部とパワープラント１の車両後方で車幅方向に延びるシャシクロスメンバ６との間に跨がって設置されたロールロッドマウント部材７により構成され、マウント部材３０とマウント部材５とロールロッドマウント部材７との上下３個所でパワープラント１を車体に支持させるようにしている。
【００１４】
マウント部材３０は、アーム３１と車幅方向の軸部３２とをそなえた支持部材３３、軸部３２の外周を囲む外筒３４、軸部３２と外筒３４との間に環状に配置されゴム状弾性体からなるインシュレータ３５、及び、外筒３４が圧入、溶接等の手段で一体的に固定された略平板状のフランジ部３６により構成され、支持部材３３のアーム３１がパワープラント１の上部へボルト止めされている一方、左サイドメンバ２の内側面３７に固定された４本のスタッドボルト３８が、フランジ部３６に形成された各長孔４０をそれぞれ挿通してナット３９で締め付けられることにより、フランジ部３６が左サイドメンバ２の内側面３７へ固定されていて、このとき、支持部材３３の軸部３２及び外筒３４がそれぞれ略車幅方向の軸心をもち、かつ、軸部３２、外筒３４及びインシュレータ３５の大部分が左サイドメンバ２内に配置され、各長孔４０が車両前後方向へ直線的に延びている。
なお、２´は左サイドメンバ２の内面に取り付けられたリンホースである。
【００１５】
マウント部材５及びロールロッドマウント部材７は前記従来装置の場合ととくに変わるところがないので、説明を省略する。
【００１６】
このパワープラントマウント装置においては、マウント部材３０の支持部材軸部３２、外筒３４及びインシュレータ３５の大部分が左サイドメンバ２内に配置されているため、左サイドメンバ２の内側方にマウント部材３が設置されている上記従来装置の場合と比較すると、パワープラント１と左サイドメンバ２との車幅方向距離、すなわち、両者間の所要スペースを容易に縮小させることができるので、マウント部材３０の設定場所に関する自由度を大きくすることが可能となる。
【００１７】
また、フランジ部３６の長孔４０を挿通するスタッドボルト３８及びナット３９によりマウント部材３０の外筒３４を左サイドメンバ２の内側面３７に固定していて、長孔４０に沿って相対的にスタッドボルト３８を車両前後方向へ適宜変位させることにより、左サイドメンバ２に対するマウント部材３０の取付け位置を容易に変更させることができる。
【００１８】
従って、パワープラント１の仕様が異なった場合に、パワープラント１の稼動から生じる振動や騒音を効果的に低減させうる左サイドメンバ２へのマウント部材３の取付け位置が車両前後方向に多少相違しても、左サイドメンバ２に対するマウント部材３０の取付け位置を車両前後方向へ容易に変更させることができて、上記振動や騒音の効果的低減を図ることができ、このため、パワープラント１の仕様変更等にそなえて、スタッドボルト３８の固定位置が異なった多種類の左サイドメンバ２を準備する必要性が減少して、左サイドメンバ２のコストを容易に軽減させることが可能となる。
【００１９】
しかも、従来使用されていなかった左サイドメンバ２内の空間をマウント部材３０の配置に利用することにより、エンジンルーム内のスペースをそれだけ有効に活用できることとなるという利点がある。
【００２０】
なお、上記実施形態例では、フランジ部３６の各長孔４０が車両前後方向へ直線的に延びているが、上下方向、または、車両前後方向へ直線的にもしくは緩やかな弧状に適宜傾斜して延びるようにしても、上記実施形態例と同様な作用効果を奏することができ、また、マウント部材におけるインシュレータとしては、ゴム状弾性体の外に、液体を封入した既知の弾性体等を適用できることはいうまでもない。
【００２１】
【発明の効果】
本発明にかかるパワープラントマウント装置にあっては、マウント部材の軸部及び外筒の少なくとも一部がサイドメンバ内に配置されていて、パワープラントとサイドメンバとの間でマウント部材の設置に必要なスペースを比較的小さくすることができるため、マウント部材の設定場所に関する自由度を容易に大きくして、好適な場所にマウント部材を設置しやすくなり、かつ、外筒と一体的に形成されたフランジ部の長孔を挿通するボルトによりフランジ部がサイドメンバに固定されていて、長孔内をボルトが相対的に移動することにより、サイドメンバに対するマウント部材の取付け位置を容易に適宜変更させることができるので、パワープラントの振動等をマウント部材により効果的に低減させることが可能となり、また、パワープラントの仕様変更等にそなえて、マウント部材の取付け位置が異なった多種類の左サイドメンバを準備する必要性も減少する長所がある。
【図面の簡単な説明】
【図１】本発明の実施形態例における概略配置図。
【図２】図１のＩＩ−ＩＩ縦断面拡大図。
【図３】図２のＩＩＩ−ＩＩＩ矢視図。
【図４】従来装置における概略配置図。
【図５】図４のＶ矢視拡大図。
【図６】図５のＶＩ−ＶＩ縦断面矢視図。
【符号の説明】
１パワープラント
２左サイドメンバ
４右サイドメンバ
５マウント部材
６シャシクロスメンバ
７ロールロッドマウント部材
３０マウント部材
３１アーム
３２軸部
３３支持部材
３４外筒
３５インシュレータ
３６フランジ部
３８スタッドボルト
３９ナット
４０長孔[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device for elastically supporting a power plant by a side member of a vehicle.
[0002]
[Prior art]
As illustrated in FIGS. 4 to 6, a conventional power plant mounting apparatus for a vehicle extends in the vehicle front-rear direction with an upper portion of a horizontally disposed power plant 1 in which an engine and a transmission are integrally coupled. A mount member 3 installed between the left side member 2 having a closed cross-sectional structure and a mount member installed between the upper part of the power plant 1 and a right side member 4 extending in the vehicle front-rear direction and having a closed cross-sectional structure. 5, and a roll rod mount member 7 laid across a lower portion of the power plant 1 and a shacyclos member 6 extending in the vehicle width direction behind the vehicle of the power plant 1; The power plant 1 is supported on the vehicle body at three positions above and below the mount member 5 and the roll rod mount member 7.
[0003]
The mount member 3 has a substantially U-shaped cross section, a bottom portion welded to the inner side surface of the left side member 2 and both ends protruding inward in the vehicle width direction, and an insulator 11 made of a rubber-like elastic body is interposed therebetween. Inner cylinder 12 and outer cylinder 13, and bolts 14, each of which is inserted into the inner cylinder 12 and fixed at both ends to the distal end of the mount bracket 10 while being disposed in the front-rear direction of the vehicle. The arm 15 of the cylinder 13 is bolted to the upper part of the power plant 1.
[0004]
The mount member 5 includes an inner cylinder and an outer cylinder 16 (not shown) in which an insulator made of a rubber-like elastic body is installed, and is vertically disposed through the inner cylinder through the arm 17 to mount the power plant 1 via the arm 17. An outer cylinder 16 is bolted to the upper surface of the right side member 4.
[0005]
The roll rod mount member 7 is fixed to the shacyclos member 6 and has a bifurcated mount bracket 18 having both ends protruding forward of the vehicle, and one end connected to a lower portion of the power plant 1 and an outer cylinder 19 integrated at the other end. An insulator 21 made of a rubber-like elastic body installed between an inner cylinder (not shown) and an outer cylinder 19 (not shown), is inserted in the inner cylinder and arranged in the vehicle width direction, and both ends are mounted. The power plant 1 is composed of bolts 22 locked to both ends of the bracket 18, respectively, and the power plant 1 is triaxially supported on the vehicle body at three points vertically by the mount member 3, the mount member 5, and the roll rod mount member 7. .
[0006]
However, in order to effectively reduce the vibration and noise generated by the operation of the power plant 1 by the mount member 3, the fixing position of the mount member 3 to the left side member 2 is set to an optimum position for each type of the power plant 1. Therefore, there is a problem that various types of left side members 2 in which the fixing position of the mounting member 3 is appropriately changed for each type of the power plant 1 must be prepared.
[0007]
Note that, as a power plant mounting device for a vehicle, those described in Patent Literature 1 and Patent Literature 2 below are conventionally known.
[0008]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2000-120770 [Patent Document 2]
JP-A-9-240291
[Problems to be solved by the invention]
SUMMARY An advantage of some aspects of the invention is that when a power plant is elastically supported by a mount member on a side member of a vehicle, the mounting position of the mount member on the side member can be easily changed.
[0010]
[Means for Solving the Problems]
For this reason, the power plant mounting device according to the present invention is provided with an elastic member provided between the side member extending in the vehicle front-rear direction and the power plant, the shaft portion, the outer cylinder, and the annular member disposed between the shaft portion and the outer cylinder. A body having a mount member, at least a part of the shaft and the outer cylinder are arranged in the side member, and the shaft is connected to the power plant, and the outer cylinder and An elongated hole is provided in the integrally formed flange portion, and the flange portion is fixed to the side member by a bolt passing through the elongated hole.
[0011]
That is, since the shaft portion of the mount member and at least a part of the outer cylinder are arranged in the side member, it is necessary to install the mount member as compared with the case where the mount member is installed outside the side member. The space can be easily reduced, the degree of freedom with respect to the setting position of the mount member can be easily increased, and the bolt is inserted through the long hole of the flange formed integrally with the outer cylinder. Since the flange portion is fixed to the side member and the bolt relatively moves in the elongated hole, the mounting position of the mount member on the side member can be easily changed as appropriate.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described by giving the same reference numerals to the same parts as those of the conventional device.
[0013]
1 to 3, a vehicle power plant mounting device includes a left side member having a closed cross-sectional structure that extends in the vehicle front-rear direction with an upper portion of a power plant 1 in which an engine and a transmission are integrally coupled and placed horizontally. 2, a mounting member 5 installed between the upper part of the power plant 1 and the right side member 4 extending in the vehicle front-rear direction and having a closed cross-sectional structure, and a power plant 1. A roll rod mounting member 7 is provided so as to straddle between a lower portion and a chassis cyclos member 6 extending in the vehicle width direction behind the vehicle of the power plant 1, and includes a mounting member 30, a mounting member 5, and a roll rod mounting member. The power plant 1 is supported by the vehicle body at three points above and below the power plant 7.
[0014]
The mounting member 30 includes a support member 33 having an arm 31 and a shaft portion 32 in the vehicle width direction, an outer cylinder 34 surrounding the outer periphery of the shaft portion 32, and a ring-shaped rubber member disposed between the shaft portion 32 and the outer cylinder 34. An insulator 35 made of a rubber-like elastic body, and an outer cylinder 34 are constituted by a substantially flat plate-like flange portion 36 integrally fixed by means such as press-fitting, welding, or the like, and the arm 31 of the support member 33 is located above the power plant 1. The four stud bolts 38 fixed to the inner side surface 37 of the left side member 2 while being bolted to the left side member 2 are inserted into the respective long holes 40 formed in the flange portion 36 and fastened with the nuts 39. As a result, the flange portion 36 is fixed to the inner side surface 37 of the left side member 2, and at this time, the shaft portion 32 and the outer cylinder 34 of the support member 33 each have an axis substantially in the vehicle width direction, and 2, the majority of the outer cylinder 34 and the insulator 35 are disposed on the left side member 2, the elongated holes 40 extend linearly in the vehicle longitudinal direction.
Reference numeral 2 'denotes a phosphorus hose attached to the inner surface of the left side member 2.
[0015]
Since the mounting member 5 and the roll rod mounting member 7 are not particularly different from those of the conventional device, the description is omitted.
[0016]
In this power plant mounting apparatus, since most of the support member shaft portion 32, the outer cylinder 34, and the insulator 35 of the mount member 30 are disposed in the left side member 2, the mount member is provided inside the left side member 2. 3, the distance between the power plant 1 and the left side member 2 in the vehicle width direction, that is, the required space therebetween can be easily reduced. It is possible to increase the degree of freedom with respect to the setting place.
[0017]
Further, the outer cylinder 34 of the mount member 30 is fixed to the inner surface 37 of the left side member 2 by stud bolts 38 and nuts 39 that pass through the long holes 40 of the flange portion 36, and relatively along the long holes 40. By appropriately displacing the stud bolt 38 in the vehicle front-rear direction, the mounting position of the mount member 30 on the left side member 2 can be easily changed.
[0018]
Therefore, when the specifications of the power plant 1 are different, the mounting position of the mount member 3 on the left side member 2 which can effectively reduce the vibration and noise generated from the operation of the power plant 1 is slightly different in the vehicle front-rear direction. However, the mounting position of the mount member 30 with respect to the left side member 2 can be easily changed in the front-rear direction of the vehicle, and the above-described vibration and noise can be effectively reduced. In preparation for a change or the like, the necessity of preparing various types of left side members 2 having different fixing positions for the stud bolts 38 is reduced, and the cost of the left side members 2 can be easily reduced.
[0019]
In addition, there is an advantage that the space in the engine room can be more effectively utilized by using the space in the left side member 2 which has not been conventionally used for the arrangement of the mount member 30.
[0020]
In the above-described embodiment, the long holes 40 of the flange portion 36 extend linearly in the vehicle front-rear direction, but are appropriately inclined in the vertical direction, or in the vehicle front-rear direction, linearly or in a gentle arc. Even if it is made to extend, the same operation and effect as the above embodiment can be obtained, and as the insulator in the mount member, in addition to the rubber-like elastic body, a known elastic body or the like in which a liquid is sealed can be applied. Needless to say.
[0021]
【The invention's effect】
In the power plant mounting apparatus according to the present invention, at least a part of the shaft portion of the mount member and the outer cylinder are disposed in the side member, and are necessary for installation of the mount member between the power plant and the side member. Space can be made relatively small, so that the degree of freedom regarding the setting place of the mount member can be easily increased, and the mount member can be easily installed in a suitable place, and formed integrally with the outer cylinder. The mounting position of the mount member with respect to the side member can be easily changed appropriately by the bolt being inserted into the long hole of the flange portion so that the flange portion is fixed to the side member, and the bolt relatively moves in the long hole. The mounting member can effectively reduce vibrations and the like in the power plant. Equipped bets of specification changes, an advantage also reduces the need to prepare many kinds of the left side member attachment position of the mount member is different.
[Brief description of the drawings]
FIG. 1 is a schematic layout diagram in an embodiment of the present invention.
FIG. 2 is an enlarged longitudinal sectional view taken along the line II-II of FIG.
FIG. 3 is a view taken in the direction of arrows III-III in FIG. 2;
FIG. 4 is a schematic layout diagram of a conventional device.
FIG. 5 is an enlarged view of FIG.
FIG. 6 is a vertical sectional view taken along the line VI-VI in FIG. 5;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Power plant 2 Left side member 4 Right side member 5 Mounting member 6 Shacyclos member 7 Roll rod mounting member 30 Mounting member 31 Arm 32 Shaft 33 Supporting member 34 Outer cylinder 35 Insulator 36 Flange 38 Stud bolt 39 Nut 40 Slot

Claims

A shaft member provided between the side member extending in the vehicle front-rear direction and the power plant, a mount member having a shaft portion, an outer cylinder, and an elastic body annularly disposed between the shaft portion and the outer tube; A part and at least a part of the outer cylinder are arranged in the side member, the shaft part is connected to the power plant, and a long hole is provided in a flange part integrally formed with the outer cylinder. A power plant mounting device, wherein the flange portion is fixed to the side member by a bolt inserted through the elongated hole.

The power plant mounting device according to claim 1, wherein the elongated hole extends in a vehicle front-rear direction.

2. The power plant mounting device according to claim 1, wherein the elongated hole extends in a vertical direction or in a longitudinal direction of the vehicle.

The power plant mounting device according to any one of claims 1 to 3, wherein the bolt is a stud bolt fixed to the side member.

The power plant mounting device according to any one of claims 1 to 4, wherein the side member forms a closed cross section.

The power plant mounting device according to any one of claims 1 to 5, wherein the shaft portion is connected to an upper portion of the power plant.

7. The power plant according to claim 6, wherein the power plant is elastically supported by a second mount member on the other side member, and is elastically supported by a roll rod mount member on a Shacyclos member located at the rear of the vehicle of the power plant. A configured power plant mounting device.

The power plant mounting apparatus according to claim 7, wherein the second mount member is connected to an upper part of the power plant, and the roll rod mount member is connected to a lower part of the power plant.

The power plant mounting device according to any one of claims 1 to 8, wherein the flange portion is fixed to a vertical wall of the side member.