JPH0730416Y2 - Independent suspension diff case support structure - Google Patents
Independent suspension diff case support structureInfo
- Publication number
- JPH0730416Y2 JPH0730416Y2 JP12337288U JP12337288U JPH0730416Y2 JP H0730416 Y2 JPH0730416 Y2 JP H0730416Y2 JP 12337288 U JP12337288 U JP 12337288U JP 12337288 U JP12337288 U JP 12337288U JP H0730416 Y2 JPH0730416 Y2 JP H0730416Y2
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- support structure
- vehicle
- independent suspension
- differential case
- 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 - Fee Related
Links
Landscapes
- Motor Power Transmission Devices (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Prevention Devices (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は独立懸架装置のデフケース支持構造に関し、特
にその振動伝達防止構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a differential case supporting structure for an independent suspension system, and more particularly to a vibration transmission preventing structure thereof.
［従来の技術］ 第５図には独立懸架装置における車両リアデフケースの
支持構造の一例を示す。デフケケース１は車両前後方向
（図の左右方向）へ配設され、その前端にはプロペラシ
ャフト51の後端が接続されるとともに、左右の側面から
はアクスルシャフト52が突出している（一方のみ図
示）。[Prior Art] FIG. 5 shows an example of a support structure for a vehicle rear differential case in an independent suspension system. The differential case 1 is arranged in the vehicle front-rear direction (left-right direction in the drawing), the rear end of the propeller shaft 51 is connected to the front end thereof, and the axle shafts 52 project from the left and right side surfaces (only one is shown). .
上記デフケース１には後面および傾斜する頂面にブラケ
ットアーム11、２が突設してあり、ブラケットアーム11
の先端は、これに装着した筒状防振ブッシュ12を介して
車幅方向に配したサスペンションメンバF3の上面に連結
支持されている。また、上記ブラケットアーム２の先端
は、筒状防振ブッシュ３を介して車幅方向に延びるクロ
スメンバF2の下面に連結支持せしめてある。The differential case 1 has bracket arms 11 and 2 projecting from the rear surface and the inclined top surface.
The tip of is connected to and supported by the upper surface of a suspension member F3 arranged in the vehicle width direction via a cylindrical vibration-isolating bush 12 attached to the same. The tip of the bracket arm 2 is connected and supported by the lower surface of a cross member F2 extending in the vehicle width direction via a cylindrical vibration-proof bushing 3.
［考案が解決しようとする課題］ 上記支持構造において、プロペラシャフト51の回転トル
ク変動等により上記デフケース１はアクスルシャフト52
回りの、いわゆるワインドアップ共振を生じ（図中矢
印）、これはブラケットアーム２を経て上記防振ブッシ
ュ３に上下方向の振動として入力する（図中矢印）。こ
の振動は、クロスメンバF2より車両フロアＬに至ってこ
れを加振し、低速こもり音の原因となっている。[Problems to be Solved by the Invention] In the above support structure, the differential case 1 is attached to the axle shaft 52 due to fluctuations in the rotational torque of the propeller shaft 51.
A so-called wind-up resonance occurs around the arrow (indicated by an arrow in the figure), which is input to the vibration-proof bush 3 via the bracket arm 2 as vertical vibration (indicated by an arrow in the figure). This vibration reaches the vehicle floor L from the cross member F2 and excites it, causing a low-speed muffled noise.
かかるこもり音を低減するために、上記クロスメンバを
支持するサイドメンバの肉厚を厚くしたり、上記フロア
の制振用アスファルトを増量し、あるいはデフケースに
ダイナミックダンパを設ける等の対策がなされている
が、これらはコストおよび重量の増加を招く割には効果
が十分でないという問題があった。In order to reduce the muffled noise, measures are taken such as increasing the thickness of the side member supporting the cross member, increasing the amount of asphalt for damping the floor, or installing a dynamic damper in the differential case. However, there is a problem in that they are not sufficiently effective despite the increase in cost and weight.
本考案はかかる背景に鑑みてなされたもので、必要以上
のコストアップや重量増を招くことなく、デフケースか
らの振動伝達を防止し、もって車内こもり音を効果的に
低減することができる独立懸架装置のデフケース支持構
造を提供することを目的とする。The present invention has been made in view of such a background, and it is possible to prevent vibration transmission from the differential case without incurring unnecessary cost increase and weight increase, thereby effectively reducing the muffled sound in the vehicle. An object is to provide a differential case support structure for a device.
［課題を解決するための手段］ 本考案の構成を第１図で説明すると、本考案のデフケー
ス支持構造は、車両前後方向へ延びるサイドメンバF1
（第３図）間に架設された前後位置のクロスメンバF2間
に、上記サイドメンバF1と平行に補助メンバ４を架設
し、該補助メンバ４の中間位置に防振マウント３を設け
て、これにデフケース１より突出するブラケットアーム
２の先端を連結したものである。[Means for Solving the Problems] The structure of the present invention will be described with reference to FIG. 1. The differential case support structure of the present invention is a side member F1 extending in the vehicle longitudinal direction.
(FIG. 3) An auxiliary member 4 is installed between the front and rear cross members F2 installed in parallel with the side member F1 and an anti-vibration mount 3 is provided at an intermediate position between the auxiliary members 4. The tip of a bracket arm 2 protruding from the differential case 1 is connected to the.
［作用］ 上記支持構造において、デフケース１のワインドアップ
共振に伴い、防振マウント３には上下方向の振動が入力
する。ここにおいて、上記防振マウント３は、クロスメ
ンバF2間に架設した補助メンバ４の中間位置に設けてあ
るから、入力振動は分散して上記各クロスメンバF2に入
力し、この結果、車両フロアＬの振動が小さくなって車
室こもり音が低減される。[Operation] In the above support structure, vertical vibration is input to the vibration-proof mount 3 in accordance with wind-up resonance of the differential case 1. Here, since the vibration-proof mount 3 is provided at an intermediate position of the auxiliary member 4 installed between the cross members F2, the input vibration is dispersed and input to each of the cross members F2. As a result, the vehicle floor L Vibration is reduced and the muffled noise in the passenger compartment is reduced.
［実施例］ 第２図には車両後車輪の独立懸架装置を示し、デフケー
ス１は車両前後方向に配設されてその前端にはプロペラ
シャフト51が連結され、左右の側面からはアクスルシャ
フト52が突出している。上記デフケース１には頂面と後
面にそれぞれブラケットアーム２、11が突設してあり、
ブラケットアーム11の先端上下面には筒状防振マウント
12が装着されて（第１図）、これらを貫通するボルトに
よって、車幅方向へ配したサスペンションメンバF3の上
面に上記ブラケットアーム先端を連結固定している。[Embodiment] FIG. 2 shows an independent suspension system for the rear wheels of a vehicle. The differential case 1 is disposed in the vehicle front-rear direction, a propeller shaft 51 is connected to the front end thereof, and axle shafts 52 are provided from the left and right side surfaces. It is protruding. Bracket arms 2 and 11 are provided on the top surface and the rear surface of the differential case 1, respectively.
Cylindrical anti-vibration mounts on the top and bottom surfaces of the bracket arm 11
12 is mounted (FIG. 1), and the tip of the bracket arm is connected and fixed to the upper surface of the suspension member F3 arranged in the vehicle width direction by bolts penetrating these.
上記デフケース１の前上方には、前後位置にクロスメン
バF2が設けてあり、これらは車両両側部を前後方向へ延
びるサイドメンバF1（第３図）間に架設されている。上
記クロスメンバF2の内、前側に位置するものは断面形状
を大きくしてあり、これらクロスメンバF2の中央を結ん
で前後方向へ補助メンバ４が設けてある。Cross members F2 are provided at the front and rear positions above the front of the differential case 1 and are provided between side members F1 (see FIG. 3) extending in the front and rear directions on both sides of the vehicle. Of the cross members F2, the one located on the front side has a large cross-sectional shape, and an auxiliary member 4 is provided in the front-rear direction by connecting the centers of these cross members F2.
上記補助メンバ４はハット断面をなして前端に向けて漸
次太くしてあり（第１図）、上記デフケース１より延び
るブラケットアーム２先端は、これに装着した筒状防振
マウント３内を貫通せしめたボルトによって、上記補助
メンバ４の、前端に近いハット断面内に連結固定してあ
る。The auxiliary member 4 has a hat cross-section and is gradually thickened toward the front end (FIG. 1). The tip of the bracket arm 2 extending from the differential case 1 is passed through the tubular vibration-proof mount 3 attached thereto. The bolts are connected and fixed in the hat section of the auxiliary member 4 near the front end thereof.
上記支持構造において、デフケース１がアクスルシャフ
ト52回りにワインドアップ共振すると（第１図矢印）、
これはブラケットアーム２を経て上下方向振動（図中矢
印）として上記防振マウント３に入力する。防振マウン
ト３で一部が吸収されて補助メンバ４に伝達した振動
は、ここで分散せしめられ、前後のクロスメンバF2には
十分に小さい加振力で入力する。特に、ブラケットアー
ム２の連結部に近い前側クロスメンバF2は、断面形状が
大きくしてあるから、剛性が大きく、振動伝達を有効に
阻止する。In the above support structure, when the diff case 1 resonates around the axle shaft 52 in wind-up (arrow in FIG. 1),
This is input to the vibration isolation mount 3 as vertical vibration (arrow in the figure) via the bracket arm 2. The vibration that is partly absorbed by the vibration-proof mount 3 and transmitted to the auxiliary member 4 is dispersed here, and is input to the front and rear cross members F2 with a sufficiently small vibration force. In particular, since the front cross member F2 near the connecting portion of the bracket arm 2 has a large cross-sectional shape, it has a large rigidity and effectively prevents vibration transmission.
かくして、クロスメンバF2より車両フロアＬに入力する
振動が十分に低減される結果、車室こもり音は小さく抑
えられる。この効果を第４図に示す。As a result, the vibration input to the vehicle floor L from the cross member F2 is sufficiently reduced, and as a result, the muffled noise in the passenger compartment is suppressed to a low level. This effect is shown in FIG.
図中、線ｘが本考案、線ｙが従来例であり、これによる
と、40〜80Hzの低速こもり音が効果的に低減せしめられ
ている。In the figure, the line x represents the present invention and the line y represents the conventional example. According to this, the low-speed muffled sound of 40 to 80 Hz is effectively reduced.
［考案の効果］ 以上の如く、本考案の支持構造によれば、前後のクロス
メンバ間に補助メンバを設けて、これの中間位置に防振
マウントを介してデフケースのブラケットアーム先端を
連結支持せしめたことにより、デフケースからの入力振
動が分散せしめられ、大幅なコストアップや重量増を招
くことなく、車両のこもり音を大幅に低減することがで
きる。[Advantages of the Invention] As described above, according to the support structure of the present invention, the auxiliary member is provided between the front and rear cross members, and the tip of the bracket arm of the differential case is connected and supported at an intermediate position between the cross members through the vibration isolating mount. As a result, the input vibration from the differential case is dispersed, and the muffled noise of the vehicle can be significantly reduced without causing a significant increase in cost or weight.
また、本考案によれば、従来の如くクロスメンバの下面
に防振マウントを設置しないから、車高規制の限度内
で、上記クロスメンバの断面を大きくすることができる
とともに筒状防振マウントの大形化によりそのバネ定数
を低減することができ、これによっても、こもり音の低
減が実現される。Further, according to the present invention, since the vibration isolating mount is not installed on the lower surface of the cross member as in the prior art, it is possible to increase the cross section of the cross member within the limit of the vehicle height regulation and to make the tubular vibration isolating mount of the cross member. By increasing the size, the spring constant can be reduced, and this also reduces the muffled sound.
さらに、上記防振マウントの位置が従来に比して上方へ
移動するため、ブラケットアーム長を長くすることがで
き、この結果、防振マウントへの振動入力が低下して、
これがこもり音の低下に寄与するという効果もある。Furthermore, since the position of the vibration isolation mount moves upward compared to the conventional case, the bracket arm length can be increased, and as a result, the vibration input to the vibration isolation mount is reduced,
This also has the effect of contributing to the reduction of muffled sound.
第１図ないし第４図は本考案の一実施例を示し、第１図
は支持構造の一部断面全体側面図、第２図は車両後輪懸
架装置の全体斜視図、第３図は車両フレームの要部斜視
図、第４図は騒音低減効果を示す図、第５図は従来の支
持構造を示す一部断面全体側面図である。 １……デフケース ２……ブラケットアーム ３……防振マウント ４……補助メンバ 51……プロペラシャフト 52……アクスルシャフト F1……サイドメンバ F2……クロスメンバ1 to 4 show an embodiment of the present invention, FIG. 1 is a partial sectional side view of a support structure, FIG. 2 is a perspective view of a vehicle rear wheel suspension system, and FIG. 3 is a vehicle. FIG. 4 is a perspective view showing a main part of the frame, FIG. 4 is a view showing a noise reduction effect, and FIG. 5 is a partial cross-sectional side view showing a conventional support structure. 1 …… Differential case 2 …… Bracket arm 3 …… Anti-vibration mount 4 …… Auxiliary member 51 …… Propeller shaft 52 …… Axle shaft F1 …… Side member F2 …… Cross member
Claims (1)
アームの先端を防振マウントを介して車両フレームに連
結してなる独立懸架装置のデフケース支持構造におい
て、車両前後方向へ延びるサイドメンバ間に架設された
前後位置のクロスメンバ間に、上記サイドメンバと平行
に補助メンバを架設し、該補助メンバの中間位置に上記
防振マウントを設けて、これに上記ブラケットアーム先
端を連結したことを特徴とする独立懸架装置のデフケー
ス支持構造。1. In a differential case support structure of an independent suspension system in which a tip of a bracket arm projecting from a diff case of a vehicle is connected to a vehicle frame via a vibration-proof mount, the structure is provided between side members extending in the vehicle front-rear direction. An auxiliary member is installed between the cross members at the front and rear positions in parallel with the side member, the vibration isolating mount is provided at an intermediate position of the auxiliary member, and the tip of the bracket arm is connected to this. Independent suspension diff case support structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12337288U JPH0730416Y2 (en) | 1988-09-20 | 1988-09-20 | Independent suspension diff case support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12337288U JPH0730416Y2 (en) | 1988-09-20 | 1988-09-20 | Independent suspension diff case support structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0243707U JPH0243707U (en) | 1990-03-26 |
| JPH0730416Y2 true JPH0730416Y2 (en) | 1995-07-12 |
Family
ID=31372164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12337288U Expired - Fee Related JPH0730416Y2 (en) | 1988-09-20 | 1988-09-20 | Independent suspension diff case support structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730416Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2528246Y2 (en) * | 1989-09-08 | 1997-03-05 | セイレイ工業株式会社 | Axle case support device for vehicles |
| JP7322497B2 (en) * | 2019-05-14 | 2023-08-08 | スズキ株式会社 | Vehicle drive system |
-
1988
- 1988-09-20 JP JP12337288U patent/JPH0730416Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0243707U (en) | 1990-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |