JPS5824291B2 - Differential gear case support device for rear wheel drive vehicles - Google Patents
Differential gear case support device for rear wheel drive vehiclesInfo
- Publication number
- JPS5824291B2 JPS5824291B2 JP14234179A JP14234179A JPS5824291B2 JP S5824291 B2 JPS5824291 B2 JP S5824291B2 JP 14234179 A JP14234179 A JP 14234179A JP 14234179 A JP14234179 A JP 14234179A JP S5824291 B2 JPS5824291 B2 JP S5824291B2
- Authority
- JP
- Japan
- Prior art keywords
- mount
- differential gear
- rubber
- mount member
- gear 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
Links
Description
【発明の詳細な説明】
本発明は、後輪駆動の自動車において、プロペラシャフ
トの回転を、左右の後輪駆動軸に伝達する差動歯車装置
、とくにその支持構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a differential gear device for transmitting the rotation of a propeller shaft to left and right rear wheel drive shafts in a rear wheel drive automobile, and particularly to a support structure thereof.
一般に、上記の如き後輪駆動車において独立懸架方式を
採用する場合には、車幅方向のフロントマウントメンバ
ーとリヤマウントメンバとによって差動歯車ケースの前
部および後部を夫々支持し、これらフロント、リヤのマ
ウントメンバを車体に計４個のラバーマウントを介して
取付ける支持構造が採用されている。Generally, when an independent suspension system is adopted in a rear-wheel drive vehicle such as the one described above, the front and rear parts of the differential gear case are respectively supported by a front mount member and a rear mount member in the vehicle width direction. A support structure is adopted in which the rear mount member is attached to the vehicle body via a total of four rubber mounts.
しかしながら、かかる支持構造では、急発進、急加速時
において、差動歯車ケースがプロペラシャフトから受け
る回転トルクによって生ずる各ラバーマウントの支持反
力と、差動歯車ケースが左、右７駆動軸の駆動に際して
受ける同じ向きの回転トルクによって生ずる各ラバーマ
ウントの支持反力とは、ラバーマウントの位置によって
、向きが一致する場合と、反対向きの場合とがあり、し
かもフロントマウントメンバとリヤマウントメンバとで
は、一致する側、反対向きの側とが異なるといった支持
構造上の非対称性が問題となる。However, in such a support structure, during a sudden start or sudden acceleration, the differential gear case receives the support reaction force of each rubber mount caused by the rotational torque received from the propeller shaft, and the differential gear case drives the left and right seven drive shafts. The support reaction force of each rubber mount caused by the rotational torque in the same direction received at the time of rotation may be in the same direction or in the opposite direction depending on the position of the rubber mount, and moreover, the support reaction force on the front mount member and rear mount member is , the asymmetry in the support structure such that the matching side and the opposite side are different poses a problem.
即ち、両回転トルクに基づく支持反力が合致するラバー
マウントでは、大きな支持反力によってラバーマウント
がストッパに当接するまで大きくたわみ、差動歯車装置
の振動が車体に直接的に伝達されるため雑音を生ずるの
みならず、フロント、リヤマウントメンバにまたがって
後輪の懸架装置を取付けた構造では、車体が左右方向お
よび前後方向に傾斜し、その結果、走行安定性が悪化す
るといった問題があった。In other words, in a rubber mount where the support reaction forces based on both rotational torques match, the large support reaction force causes the rubber mount to deflect significantly until it comes into contact with the stopper, and the vibration of the differential gear is directly transmitted to the vehicle body, resulting in noise. In addition to this, the structure in which the rear wheel suspension system is mounted across the front and rear mount members causes the vehicle body to tilt in the left-right and front-rear directions, resulting in poor driving stability. .
本発明は、したがって、自動車の急発進時や急加速時に
生ずる支持構造の非対称性を可及的に防止することがで
き、したがって、マウントメンバの過度の傾斜を防止す
ることができ、雑音の発生を防止することができ、走行
安定性を向上させることができる後輪駆動車の差動歯車
ゲースの支持装置を提供することを目的としている。Therefore, the present invention can prevent asymmetry of the support structure that occurs when a car suddenly starts or accelerates as much as possible, and can therefore prevent excessive inclination of the mount member, which can cause noise. It is an object of the present invention to provide a support device for a differential gear gate of a rear wheel drive vehicle, which can prevent this and improve running stability.
このため、本発明においては、入力軸廻りの回転トルク
による支持反力と出力軸廻りの回転トルりによる支持反
力とが同じ向きに作用するラバーマウントのはね定数を
、反対向きに作用するラバーマウントのばね定数に比し
て大きく設定し、はね定数の大きいラバーマウントで急
発進、急加速時に同じ方向に作用する支持反力の合力を
受合うようにしたことを基本的な特徴としている。Therefore, in the present invention, the spring constant of the rubber mount, where the support reaction force due to the rotational torque around the input shaft and the support reaction force due to the rotational torque around the output shaft act in the same direction, is changed to The basic feature is that the spring constant is set larger than that of the rubber mount, so that the rubber mount with a large spring constant receives the resultant force of support reaction forces that act in the same direction during sudden starts and sudden accelerations. There is.
以下、図示の実施例について本発明をより具体的に説明
する。Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments.
第１図において、１，１は車体の前後方向に伸びた両側
一対のシャシ−フレーム、２，２はシャシ−フレーム１
，１の外側に独立懸架した左、右の後輪、３はプロペラ
シャフト４にユニバーサルジヨイント５を介して連結さ
れた入力軸６と、後輪２，２を駆動する左、右の駆動軸
７，７を有するそれ自体周知の差動歯車装置で、該装置
３のケーシング８の前部はフロントマウントメンバ９の
中央に、後部はリヤマウントメンバ１０の中央に夫々固
定され、フロントマウントメンバ９、リヤマウントメン
バ１０によりシャシ−フレーム１゜１に支持される。In Fig. 1, 1 and 1 are a pair of chassis frames on both sides extending in the longitudinal direction of the vehicle body, and 2 and 2 are chassis frames 1 and 2, respectively.
, left and right rear wheels independently suspended on the outside of 1, 3 an input shaft 6 connected to a propeller shaft 4 via a universal joint 5, and left and right drive shafts that drive the rear wheels 2, 2. 7, 7, the front part of the casing 8 of the device 3 is fixed to the center of the front mount member 9, the rear part to the center of the rear mount member 10, and the front mount member 9 , is supported on the chassis frame 1°1 by a rear mount member 10.
上記フロントマウントメンバ９、リヤマウントメンバ１
０の各端部は、第３図に示すように、シャシ−フレーム
１にボルトにかり固定したラバーマウント１１のマウン
トラバー１２の外周に取付けることにより、シャシ−フ
レーム１側と弾性的に結合している。Above front mount member 9, rear mount member 1
As shown in FIG. 3, each end of 0 is elastically connected to the chassis frame 1 side by being attached to the outer periphery of the mount rubber 12 of the rubber mount 11 fixed to the chassis frame 1 by bolts. ing.
再び第１図において、１４，１４は上記駆動軸に結合さ
れた後輪２，２の車軸を夫々軸受は支持する車輪支持部
材、１５，１５は各車輪支持部材１４の前部側側部とフ
ロントマウントメンバ９の中央寄りに設けた一対のブラ
ケット部９ａとを連結するフロントラテラルリンク、１
６，１６は各車輪支持部材１４の後部側側部とリヤマウ
ントメンバ１０の中央寄りの部分とを連結するりャラテ
ラルリンク、１７，１７は各車輪支持部材１４の下部を
フロントマウントメンバ９のラバーマウント１１ａ、１
１ｂの前方のシャシ−フレーム１゜１に連結するトレー
リングリンクで、これら各リンク１５，１６，１７の各
端部の連結は、例えば第４図に示すように、各連結部に
設けた一対のブラケット１８間にボルトで支持したラバ
ーマウント１９のラバーブツシュ２０の外周に各端部を
嵌合させることにより行なう。Referring again to FIG. 1, reference numerals 14 and 14 denote wheel support members whose bearings respectively support the axles of the rear wheels 2 and 2 connected to the drive shaft, and 15 and 15 denote the front side portions of each wheel support member 14. A front lateral link 1 connects a pair of bracket parts 9a provided near the center of the front mount member 9;
Reference numerals 6 and 16 denote lateral links that connect the rear side portions of each wheel support member 14 and the central portion of the rear mount member 10; 17 and 17 connect the lower part of each wheel support member 14 to the front mount member 9 Rubber mount 11a, 1
1b is a trailing link that is connected to the chassis frame 1.1 in front of the chassis frame 1. The ends of each of these links 15, 16, and 17 are connected by a pair provided at each connection part, for example, as shown in FIG. This is done by fitting each end to the outer periphery of a rubber bush 20 of a rubber mount 19 supported by bolts between brackets 18.
第２図に示すように、上記車輪支持部材１４゜１４は、
上下方向のストラット２２の下端部に結合支持され、ス
トラット２２に設けたコイルスプリング２３およびスト
ラットタワ２４に支持したマウントラバー２５により、
弾性的に支持されている。As shown in FIG. 2, the wheel support member 14°14 is
The mount rubber 25 is coupled to and supported by the lower end of the strut 22 in the vertical direction, and is supported by the coil spring 23 provided on the strut 22 and the strut tower 24.
Elastically supported.
上記の差動歯車ケース８の支持構造において、自動車の
急発進、急加速時の支持反力について考察すると、第５
図に図式的に示す通りである。In the support structure of the differential gear case 8 described above, when considering the support reaction force when the car suddenly starts or accelerates, the fifth
As shown schematically in the figure.
即ち、自動車の急発進、急加速時においては、入力軸６
廻りの回転トルクＴおよび出力軸７，７廻りの回転トル
クｔが、差動歯車ケース８に負荷される。That is, when the car suddenly starts or accelerates, the input shaft 6
The rotational torque T around the output shafts 7 and the rotational torque t around the output shafts 7, 7 are loaded on the differential gear case 8.
いま、プロペラシャフト４、シたがって入力軸６が図に
矢印で示すように左廻りに回転駆動（自動車の前進方向
の駆動）されるとすると、入力軸６廻りの回転トルクＴ
も左廻りとなり、この人力軸６廻りの回転トルクＴによ
って、フロントマウントメンバ９、リヤマウントメンバ
１０の各ラバーマウント１１が受ける支持反力は、上向
きの矢印Ｆ１． Ｆ、で示すように、図の右側のラバー
マウンＮ１ａ、１１ｄにおいて上向きであり、逆に図の
左側のラバーマウンｈｌｌｂ、１１ｃでは、下向きの矢
印Ｆ２．Ｆ３で示すように下向きである。Now, if the propeller shaft 4 and therefore the input shaft 6 are rotated counterclockwise as shown by the arrow in the figure (drive in the forward direction of the vehicle), the rotational torque T around the input shaft 6 is
also rotates counterclockwise, and the support reaction force that each rubber mount 11 of the front mount member 9 and rear mount member 10 receives due to the rotational torque T around the human power shaft 6 is as indicated by the upward arrow F1. As shown by F, the rubber mounds N1a, 11d on the right side of the figure are pointing upward, and conversely, the rubber mounds HLLB, 11c on the left side of the figure are pointing downward, as shown by arrows F2. It is pointing downward as shown by F3.
一方、出力軸７廻りの回転トルクｔによる支持反力は、
点線の矢印ｆｌｙｆ２で示すように、フロントマウント
メンバ９のラバーマウント１１ａ。On the other hand, the supporting reaction force due to the rotational torque t around the output shaft 7 is
As shown by the dotted arrow flyf2, the rubber mount 11a of the front mount member 9.
１１ｂにおいて上向きであり、リヤマウントメンバ１０
のラバーマウンＮ１ｃ、１１ｄにおいて、点線の矢印ｆ
３．ｆ４で示すように下向きである。11b, facing upward, and the rear mount member 10
In the rubber mounts N1c and 11d, the dotted arrow f
3. It is directed downward as shown by f4.
したがって、両回転トルクＴ、ｔによる支持反力の合力
は、両方の支持反力が同じ向きとなるフロントマウント
メンバ９の右側のラバーマウント１１ａおよびリヤマウ
ントメンバ１０の左側のラバーマウント１１ｃにおいて
大きくなり、向きの異なる支持反力が作用するフロント
マウントメンバ９の左側のラバーマウンＮ１ｂ、 リ
ヤマウントメンバ１０の右側のラバーマウント１１ｄに
おいて小さくなる。Therefore, the resultant force of the support reaction forces caused by both rotational torques T and t becomes larger at the right rubber mount 11a of the front mount member 9 and the left rubber mount 11c of the rear mount member 10, where both support reaction forces are in the same direction. , the rubber mount N1b on the left side of the front mount member 9 and the rubber mount 11d on the right side of the rear mount member 10, on which support reaction forces of different directions act, are smaller.
したがって、本発明においては、入力軸廻りの回転トル
クＴと出力軸廻りの回転トルクｔによる支持反力が同じ
向きに作用するラバーマウント１１ａ、１１ｃのばね定
数Ｋａ、Ｋｃを、支持反力が相互にキャンセルする向き
に作用するラバーマウント１１ｂ、１１ｄのばね定数Ｋ
ｂ、Ｋｄに比して大きく設定する（Ｋａ 、Ｋｃ＞Ｋｂ
、Ｋｄ）。Therefore, in the present invention, the spring constants Ka and Kc of the rubber mounts 11a and 11c, in which the support reaction forces due to the rotational torque T around the input shaft and the rotational torque t around the output shaft act in the same direction, are changed to The spring constant K of the rubber mounts 11b and 11d that acts in the direction of canceling
b, set larger than Kd (Ka, Kc>Kb
, Kd).
かかるばね定数の設定は、硬度の異なるラバーを用いた
ラバーマウントを用いるか、厚みの異なるラバーを用い
ること等によって行なうことができる。Such a spring constant can be set by using a rubber mount using rubbers with different hardnesses, or by using rubbers with different thicknesses.
また、第６図に示すように、フロントマウントメンバ９
に対して、リヤマウントメンバ１０１を短尺とし、リヤ
マウントメンバ１０′の支持剛性をたかめるとともに、
リヤマウントメンバ１０′の左側のラバーマウント１１
ｃのみのばね定数Ｋｃを他のラバーマウント１１ａ、１
１ｂ、１１ｄのばね定数Ｋａ、Ｋｂ、Ｋｄに比して大き
くするようにしてもよい。In addition, as shown in FIG. 6, the front mount member 9
In contrast, the rear mount member 101 is made shorter to increase the support rigidity of the rear mount member 10', and
Rubber mount 11 on the left side of rear mount member 10'
The spring constant Kc of only the other rubber mounts 11a, 1
It may be made larger than the spring constants Ka, Kb, and Kd of 1b and 11d.
また、具体的には図示しないが、フロントマウントメン
バ９の右側のラバーマウント１１ａのばね定数Ｋａのみ
を他のラバーマウンＮ１ｂ。Further, although not specifically shown, only the spring constant Ka of the right rubber mount 11a of the front mount member 9 is different from that of the other rubber mount N1b.
１１ｃ、１１ｄのばね定数Ｋｂ、Ｋｃ、Ｋｄに比して大
きく設定するようにしてもよい。The spring constants Kb, Kc, and Kd of 11c and 11d may be set larger.
要するに、かかるばね定数の設定を通じて、急発進や急
加速時においても、ラバーマウント１１のマウントラバ
ー１２が過度に変化し、シャシ−フレーム１にボルトで
支持したストッパ２６に、フロントおよびリヤマウント
メンバ９，１０の端部が当接するといった状態を生じな
いようにすればよい。In short, by setting such a spring constant, the mount rubber 12 of the rubber mount 11 changes excessively even during a sudden start or sudden acceleration, and the front and rear mount members 9 , 10 should be prevented from coming into contact with each other.
また、一般にマウントラバーのはね定数を大きくすると
、振動減衰特性も大きくなり、このことが急激なトルク
変化による差動歯車ケースの振動を防止する効果を有す
ることになる。In addition, generally, when the spring constant of the mount rubber is increased, the vibration damping property is also increased, which has the effect of preventing vibration of the differential gear case due to sudden torque changes.
以上の説明から明らかなように、本発明は、差動歯車ケ
ースの前後部を、左右方向のフロントマウントメンバと
リヤマウントメンバにより車体に支持する後輪駆動車の
差動歯車ケース支持装置において、上記フロントマウン
トメンバーとリヤマウントメンバの左右の端部に、各マ
ウントメンバを弾性を持たせて車体に接続するラバーマ
ウント部を設け、前進駆動時に、差動歯車ケースを前後
方向の入力軸を中心に回転させるトルクと左右方向の出
力軸を中心に回転させるトルクによる力が合致する方向
で作用する側のラバーマウント部の内、少なくとも一つ
を、該ラバーマウント部の付くマウントメンバの他側の
ラバーマウント部よりもはね定数を大きく設定すること
によって、差動歯車装置をフロントマウントメンバおよ
びリヤ７ウントメンバを介してフレームに連結した場合
に生じうる雑音や車体の傾斜を防止するようにした後輪
駆動車の差動歯車ケース支持装置を提供するものである
。As is clear from the above description, the present invention provides a differential gear case support device for a rear wheel drive vehicle in which the front and rear portions of the differential gear case are supported on the vehicle body by a front mount member and a rear mount member in the left and right direction. Rubber mounts are provided at the left and right ends of the front mount member and rear mount member to connect each mount member to the vehicle body with elasticity, and when driving forward, the differential gear case is centered around the input shaft in the longitudinal direction. At least one of the rubber mount parts on the side that acts in the direction in which the torque to rotate it and the torque to rotate it around the left-right output shaft match, is attached to the other side of the mount member to which the rubber mount part is attached. By setting the spring constant larger than that of the rubber mount part, noise and tilting of the vehicle body that may occur when the differential gear device is connected to the frame via the front mount member and rear mount member are prevented. A differential gear case support device for a wheel drive vehicle is provided.
したがって、本発明に係る差動歯車ケースの支持構造に
よれば、急発進や急加速に際して雑音を生じることなく
、車輛の走行安定性を確保することができる利点が得ら
れる。Therefore, the differential gear case support structure according to the present invention has the advantage that running stability of the vehicle can be ensured without generating noise during sudden start or sudden acceleration.
第１図は本発明に係る後輪駆動車の差動歯車ケース支持
装置を示す平面説明図、第２図は同じく側面説明図、第
３図はマウントメンバのラバーマウントの断面図、第４
図はリンクのラバーマウントの断面図、第５図は急発進
、急加速時に生じる回転トルク、支持反力を示す支持装
置の要部斜視図、第６図は本発明の他の実施例を示す要
部斜視図である。
１．１・・・フレーム、２，２・・・後輪、６・・・入
力軸、７．７・・・出力軸、８・・・差動歯車ケース、
９・・・フロントマウントメンバ、１０，１０′・・・
リヤマウントメンバ、１１・・・ラバーマウント、１１
ａ、 １１ｃ・・・両回転トルクによる力が一致する側
のラバーマウント、１１ｂ、１１ｄ・・・一致しない側
のラバーマウント。1 is an explanatory plan view showing a differential gear case support device for a rear wheel drive vehicle according to the present invention, FIG. 2 is an explanatory side view of the same, FIG. 3 is a sectional view of the rubber mount of the mount member,
The figure is a sectional view of the rubber mount of the link, Figure 5 is a perspective view of the main part of the support device showing the rotational torque and support reaction force generated during sudden start and acceleration, and Figure 6 is another embodiment of the present invention. FIG. 3 is a perspective view of main parts. 1.1... Frame, 2,2... Rear wheel, 6... Input shaft, 7.7... Output shaft, 8... Differential gear case,
9...Front mount member, 10, 10'...
Rear mount member, 11...Rubber mount, 11
a, 11c...Rubber mount on the side where the forces due to both rotational torques match, 11b, 11d...Rubber mount on the side where the forces do not match.
Claims (1)
ウントメンバとリヤマウントメンバにより車体に支持す
る後輪駆動車の差動歯車ケース支持装置において、 上記フロントマウントメンバとリヤマウントメンバの左
右の端部に、各マウントメンバを弾性を持たせて車体に
接続するラバーマウント部を設け、前進駆動時に、差動
歯車ゲースを前後方向の入力軸を中心に回転させるトル
クと左右方向の出力軸を中心に回転させるトルクによる
力が合致する方向で作用する側のラバーマウント部の内
少なくとも一つを、該ラバーマウント部の付くマウント
メンバの他側のラバーマウント部よりもはね定数を大き
くしたことを特徴とする後輪駆動車の差動歯車ケース支
持装置。[Scope of Claims] 1. A differential gear case support device for a rear wheel drive vehicle in which the front and rear portions of a differential gear case are supported on a vehicle body by a front mount member and a rear mount member in the left and right directions, wherein the front mount member and the rear A rubber mount part is provided at the left and right ends of the mount member to connect each mount member to the vehicle body with elasticity, and when driving forward, the torque that rotates the differential gear gear around the input shaft in the front and rear direction and the left and right At least one of the rubber mount parts on the side on which the force of torque to rotate around the output shaft of the direction acts in the matching direction is repelled from the rubber mount part on the other side of the mount member to which the rubber mount part is attached. A differential gear case support device for a rear wheel drive vehicle characterized by a large constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14234179A JPS5824291B2 (en) | 1979-11-01 | 1979-11-01 | Differential gear case support device for rear wheel drive vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14234179A JPS5824291B2 (en) | 1979-11-01 | 1979-11-01 | Differential gear case support device for rear wheel drive vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5667631A JPS5667631A (en) | 1981-06-06 |
| JPS5824291B2 true JPS5824291B2 (en) | 1983-05-20 |
Family
ID=15313099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14234179A Expired JPS5824291B2 (en) | 1979-11-01 | 1979-11-01 | Differential gear case support device for rear wheel drive vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824291B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS635933Y2 (en) * | 1981-06-25 | 1988-02-19 | ||
| JPS58106232U (en) * | 1982-01-18 | 1983-07-19 | トヨタ自動車株式会社 | rear suspension |
| DE3507081C1 (en) * | 1985-02-28 | 1986-06-26 | Bayerische Motoren Werke AG, 8000 München | Rear wheel suspension for motor vehicles, especially for driven rear wheels |
| JP4049644B2 (en) | 2002-09-13 | 2008-02-20 | 川田工業株式会社 | Shock absorption mechanism of walking robot |
-
1979
- 1979-11-01 JP JP14234179A patent/JPS5824291B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5667631A (en) | 1981-06-06 |
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