JP2000085390A - Supporting structure for differential device - Google Patents
Supporting structure for differential deviceInfo
- Publication number
- JP2000085390A JP2000085390A JP10259572A JP25957298A JP2000085390A JP 2000085390 A JP2000085390 A JP 2000085390A JP 10259572 A JP10259572 A JP 10259572A JP 25957298 A JP25957298 A JP 25957298A JP 2000085390 A JP2000085390 A JP 2000085390A
- Authority
- JP
- Japan
- Prior art keywords
- propeller shaft
- car body
- differential device
- connecting parts
- bracket
- 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
Links
Landscapes
- Motor Power Transmission Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、左右のドライブシ
ャフトにプロペラシャフトからの駆動力を伝達するため
のディファレンシャル装置の支持構造に関するものであ
る。The present invention relates to a differential device supporting structure for transmitting a driving force from a propeller shaft to left and right drive shafts.
【０００２】[0002]
【従来の技術】例えばフロントエンジン／リアドライブ
の車両（所謂ＦＲ車）の居室部分の床下には、剛性の高
いプロペラシャフトが延在しているため、これが突っ張
っていると、前面衝突時に居室部分に作用する減速度を
下げることができない。そこでこのような不都合を改善
するために、前面衝突時の衝突エネルギがプロペラシャ
フトを伝わってリアディファレンシャル装置に入力する
と、リアディファレンシャル装置を車体に連結するマウ
ント部が破断してリアディファレンシャル装置を後方へ
移動させるようにしたものが、例えば特開平９−２７２
３５１号公報などに提案されている。2. Description of the Related Art For example, a rigid propeller shaft extends under the floor of a living room portion of a front engine / rear drive vehicle (a so-called FR vehicle). Cannot reduce the deceleration acting on the Therefore, in order to improve such inconvenience, when the collision energy at the time of a frontal collision is transmitted to the rear differential device through the propeller shaft, the mount connecting the rear differential device to the vehicle body is broken and the rear differential device is moved rearward. What is moved is disclosed in, for example, JP-A-9-272.
No. 351, for example.
【０００３】[0003]
【発明が解決しようとする課題】しかるに、この従来構
造によると、マウント部が破断に至るまでのストローク
が小さいために破断が突然に起こり、衝突エネルギが急
激に放出されてしまうことから、衝撃吸収効果が十分と
は言えなかった。However, according to this conventional structure, since the stroke until the mount portion is broken is small, the break occurs suddenly, and the collision energy is rapidly released, so that the shock absorption is reduced. The effect was not enough.
【０００４】本発明は、このような従来技術の問題点を
解消するべく案出されたものであり、その目的は、衝突
時に車体の居室部分に作用する減速度をより一層低下さ
せることができるように改良されたディファレンシャル
装置の支持構造を提供することにある。[0004] The present invention has been devised to solve such problems of the prior art, and its object is to further reduce the deceleration acting on the living room portion of the vehicle body in the event of a collision. It is an object of the present invention to provide an improved differential device support structure.
【０００５】[0005]
【課題を解決するための手段】このような目的を果たす
ために、本発明においては、デフケース１の左右両側方
におけるドライブシャフト（例えば実施の形態中のリア
ドライブシャフト２）の軸心を挟んでプロペラシャフト
３から遠い側かつプロペラシャフトの軸心よりも上方に
設けた第１対車体連結部（例えば実施の形態中の後部対
車体連結部６）と、ディファレンシャル装置とプロペラ
シャフトとの連結部１０よりもエンジン側かつプロペラ
シャフトの軸心よりも上方で車体に連結される第２対車
体連結部（例えば実施の形態中の前部対車体連結部
９）、デフケースの側面に対する固定部（例えば実施の
形態中の水平部７ｈ）、及び第２対車体連結部と固定部
との間に設けられた脆弱部１１を備えたブラケット７と
を有するものとした。このようにすれば、プロペラシャ
フトに軸力が加わると、ディファレンシャル装置とプロ
ペラシャフトとの連結部が逆への字形に折れ曲がるよう
にディファレンシャル装置の変位方向が規制される。こ
れにより、先ずブラケットの脆弱部が塑性変形してエネ
ルギ吸収作用が発揮され、さらに軸力が加わると、脆弱
部が破断してプロペラシャフトが脱落することとなる。In order to achieve the above object, in the present invention, the drive shaft (for example, the rear drive shaft 2 in the embodiment) on both left and right sides of the differential case 1 is sandwiched. A first vehicle body connecting portion (for example, a rear vehicle body connecting portion 6 in the embodiment) provided farther from the propeller shaft 3 and above the axis of the propeller shaft, and a connecting portion 10 between the differential device and the propeller shaft; A second body-to-vehicle connection portion (for example, the front-to-vehicle connection portion 9 in the embodiment) connected to the vehicle body on the engine side and above the axis of the propeller shaft, and a fixing portion (for example, 7h), and the bracket 7 having the fragile portion 11 provided between the second vehicle body connecting portion and the fixed portion. With this configuration, when an axial force is applied to the propeller shaft, the displacement direction of the differential device is regulated such that the connecting portion between the differential device and the propeller shaft is bent in an inverted shape. As a result, first, the fragile portion of the bracket is plastically deformed to exhibit an energy absorbing effect, and when an axial force is further applied, the fragile portion is broken and the propeller shaft falls off.
【０００６】[0006]
【発明の実施の形態】以下に添付の図面に示された具体
的な実施の形態を参照して本発明について詳細に説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to specific embodiments shown in the accompanying drawings.
【０００７】図１並びに図２は、左右のリアドライブシ
ャフトにプロペラシャフトからの駆動力を伝達するため
のリアディファレンシャル装置ＲＤ回りを示している。FIGS. 1 and 2 show the periphery of a rear differential device RD for transmitting a driving force from a propeller shaft to left and right rear drive shafts.
【０００８】デフケース１におけるリアドライブシャフ
ト２の軸心を挟んでプロペラシャフト３から遠い側（本
実施の形態の場合はリアドライブシャフト２の軸心より
も後方）であり、かつプロペラシャフト３の軸心よりも
上方には、左右方向に延在する横バー４が一体的に結合
されている。この横バー４の左右各端には、ラバーブッ
シュ５を備えた後部対車体連結部６が設けられてい
る。、The differential case 1 is located on the side farther from the propeller shaft 3 with respect to the axis of the rear drive shaft 2 in the differential case 1 (in the case of the present embodiment, behind the axis of the rear drive shaft 2) and the axis of the propeller shaft 3. Above the center, a horizontal bar 4 extending in the left-right direction is integrally connected. A rear-to-vehicle connecting portion 6 having a rubber bush 5 is provided at each of the left and right ends of the horizontal bar 4. ,
【０００９】デフケース１の側面には、概ねＬ字形をな
す板状のブラケット７の水平部７ｈがボルト等を用いて
固定されている。このブラケット７の垂直部７ｖには、
ラバーブッシュ８を介して車体に連結される前部対車体
連結部９が設けられている。この前部対車体連結部９の
中心は、プロペラシャフト３とリアディファレンシャル
装置ＲＤとの連結部１０よりもエンジン側（本実施の形
態の場合は連結部１０の前方）かつプロペラシャフト３
の軸心よりも上方に位置している。またブラケット７の
水平部７ｈと垂直部７ｖとの間には、くびれた形状の脆
弱部１１が形成されている。A horizontal portion 7h of a generally L-shaped plate-shaped bracket 7 is fixed to the side surface of the differential case 1 using bolts or the like. In the vertical part 7v of this bracket 7,
A front-to-vehicle connecting portion 9 connected to the vehicle body via a rubber bush 8 is provided. The center of the front-to-vehicle connecting portion 9 is closer to the engine than the connecting portion 10 between the propeller shaft 3 and the rear differential device RD (in the present embodiment, in front of the connecting portion 10) and the propeller shaft 3
Is located higher than the axis of. Further, between the horizontal portion 7h and the vertical portion 7v of the bracket 7, a fragile portion 11 having a constricted shape is formed.
【００１０】次に図３を併せて参照して本発明の作用に
ついて説明する。車体前面に衝突による衝撃荷重が加わ
り、エンジン（図示せず）が後方へ移動すると、プロペ
ラシャフト３に後向きの軸力が加わり、これがリアディ
ファレンシャル装置ＲＤに伝わる。ここでデフケース１
の後部対車体連結部６は、リアドライブシャフト２の軸
心よりも後方かつプロペラシャフト３の軸心よりも上方
に位置しているので、リアディファレンシャルＲＤに後
向きの軸力が加わると、後部対車体連結部６を中心とし
て図１における時計回りの回動モーメントがリアディフ
ァレンシャル装置ＲＤに作用する。このため、リアディ
ファレンシャル装置ＲＤとプロペラシャフト３との連結
部１０が逆への字形に折れ曲がり、その結果、先ず水平
部７ｈと垂直部７ｖの挟み角（図３−Ａの角度α）が開
く向きにブラケット７の脆弱部１１が塑性変形して衝突
エネルギの吸収作用が発揮される（図３−Ａ）。さらに
軸力が加わると、脆弱部１１が破断してプロペラシャフ
ト３が脱落する（図３−Ｂ）。これにより、プロペラシ
ャフト３が突っ張って車体の変形を阻害する不都合が生
じないようにしている。Next, the operation of the present invention will be described with reference to FIG. When an impact load due to a collision is applied to the front of the vehicle body and an engine (not shown) moves rearward, a rearward axial force is applied to the propeller shaft 3 and transmitted to the rear differential device RD. Here is differential case 1
The rear-to-vehicle connecting portion 6 is located behind the axis of the rear drive shaft 2 and above the axis of the propeller shaft 3, so that when a rearward axial force is applied to the rear differential RD, the rear pair A clockwise turning moment in FIG. 1 around the vehicle body connection portion 6 acts on the rear differential device RD. For this reason, the connecting portion 10 between the rear differential device RD and the propeller shaft 3 is bent in an inverted shape, and as a result, first, the sandwiching angle (the angle α in FIG. 3A) between the horizontal portion 7h and the vertical portion 7v opens. Then, the fragile portion 11 of the bracket 7 is plastically deformed to exhibit an impact energy absorbing action (FIG. 3-A). When an axial force is further applied, the fragile portion 11 breaks and the propeller shaft 3 falls off (FIG. 3-B). This prevents the inconvenience that the propeller shaft 3 stretches and hinders the deformation of the vehicle body.
【００１１】上記、実施の形態は、ＦＲ車の後車軸側に
設けたディファレンシャル装置を例にとって述べたが、
本発明は、ミッドシップエンジンの前車軸にも適用可能
である。In the above embodiment, the differential device provided on the rear axle side of the FR vehicle has been described as an example.
The invention is also applicable to the front axle of a midship engine.
【００１２】[0012]
【発明の効果】このように本発明によれば、衝突により
プロペラシャフトに軸力が加わると、ディファレンシャ
ル装置とプロペラシャフトとの連結部が逆への字形に折
れ曲がることができる。このため、先ずブラケットの脆
弱部が塑性変形してエネルギ吸収作用が発揮され、さら
に軸力が加わると脆弱部が破断してプロペラシャフトが
脱落する。これにより、前後車軸間にプロペラシャフト
が延在した車両における衝突時の居室部分の減速度を抑
えることができ、所謂クラッシャブルゾーンの低減とキ
ャビンスペースの拡大とを両立する上に大きな効果を奏
することができる。As described above, according to the present invention, when an axial force is applied to the propeller shaft due to a collision, the connecting portion between the differential device and the propeller shaft can be bent in an inverted shape. For this reason, the fragile portion of the bracket is first plastically deformed to exert an energy absorbing effect, and further when an axial force is applied, the fragile portion is broken and the propeller shaft falls off. As a result, it is possible to suppress the deceleration of the living room portion at the time of a collision in a vehicle in which the propeller shaft extends between the front and rear axles, which is a great effect in achieving both reduction of the so-called crushable zone and expansion of the cabin space. be able to.
【図１】本発明によるリアディファレンシャル装置の対
車体連結部を示す斜視図FIG. 1 is a perspective view showing a connecting portion of a rear differential device according to the present invention with respect to a vehicle body.
【図２】本発明によるリアディファレンシャル装置の対
車体連結部を示す側面図FIG. 2 is a side view showing a connecting portion with respect to a vehicle body of the rear differential device according to the present invention.
【図３】本発明の作用の説明図FIG. 3 is a diagram illustrating the operation of the present invention.
１ デフケース ２ リアドライブシャフト ３ プロペラシャフト ６ 後部対車体連結部（第１対車体連結部） ７ ブラケット ７ｈ 水平部（固定部）、７ｖ 垂直部 ９ 前部対車体連結部（第２対車体連結部） １０ 連結部 １１ 脆弱部 ＲＤ リアディファレンシャル装置 DESCRIPTION OF SYMBOLS 1 Differential case 2 Rear drive shaft 3 Propeller shaft 6 Rear part to vehicle body connection part (first part to vehicle body connection part) 7 Bracket 7h Horizontal part (fixed part), 7v vertical part 9 Front part to vehicle body connection part (second part to vehicle body connection part) ) 10 connecting part 11 fragile part RD rear differential device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田所 英俊 埼玉県和光市中央１丁目４番１号 株式会 社本田技術研究所内 (72)発明者 香月 敦史 埼玉県和光市中央１丁目４番１号 株式会 社本田技術研究所内 Ｆターム(参考） 3D042 AA08 AB01 CB03 CB13 DA11 DC02 DC04 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hidetoshi Tadokoro 1-4-1 Chuo, Wako-shi, Saitama Prefecture Inside Honda R & D Co., Ltd. (72) Atsushi Katsuki Inventor 1-4-1 Chuo, Wako-shi, Saitama No. F-term in Honda R & D Co., Ltd. (Reference) 3D042 AA08 AB01 CB03 CB13 DA11 DC02 DC04
Claims (1)
フトからの駆動力を伝達するためのディファレンシャル
装置の支持構造であって、 デフケースの左右両側方における前記ドライブシャフト
の軸心を挟んで前記プロペラシャフトから遠い側かつ前
記プロペラシャフトの軸心よりも上方に設けた第１対車
体連結部と、 当該ディファレンシャル装置と前記プロペラシャフトと
の連結部よりもエンジン側かつ前記プロペラシャフトの
軸心よりも上方で車体に連結される第２対車体連結部、
前記デフケースの側面に対する固定部、及び前記第２対
車体連結部と前記固定部との間に設けられた脆弱部を備
えたブラケットとを有することを特徴とするディファレ
ンシャル装置の支持構造。1. A support structure for a differential device for transmitting a driving force from a propeller shaft to left and right drive shafts, wherein the support structure is far from the propeller shaft with the drive shaft shaft centers on both left and right sides of a differential case. A first body-to-vehicle connecting portion provided on the side of the propeller shaft and above the axis of the propeller shaft; and a vehicle body above the connecting portion between the differential device and the propeller shaft on the engine side and above the axis of the propeller shaft. A second anti-body connecting portion to be connected,
A support structure for a differential device, comprising: a fixing portion to a side surface of the differential case; and a bracket having a fragile portion provided between the second body coupling portion and the fixing portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25957298A JP3730417B2 (en) | 1998-09-14 | 1998-09-14 | Support structure for differential device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25957298A JP3730417B2 (en) | 1998-09-14 | 1998-09-14 | Support structure for differential device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000085390A true JP2000085390A (en) | 2000-03-28 |
| JP3730417B2 JP3730417B2 (en) | 2006-01-05 |
Family
ID=17335995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25957298A Expired - Lifetime JP3730417B2 (en) | 1998-09-14 | 1998-09-14 | Support structure for differential device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3730417B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011207343A (en) * | 2010-03-30 | 2011-10-20 | Mazda Motor Corp | Driving force transmission device of automobile and lower body structure of automobile including the same |
| JP2011207344A (en) * | 2010-03-30 | 2011-10-20 | Mazda Motor Corp | Lower body structure of automobile |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11668352B2 (en) | 2019-06-10 | 2023-06-06 | Honda Motor Co., Ltd. | Final drive assembly, powertrain for a vehicle, and method of containing a shaft |
-
1998
- 1998-09-14 JP JP25957298A patent/JP3730417B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011207343A (en) * | 2010-03-30 | 2011-10-20 | Mazda Motor Corp | Driving force transmission device of automobile and lower body structure of automobile including the same |
| JP2011207344A (en) * | 2010-03-30 | 2011-10-20 | Mazda Motor Corp | Lower body structure of automobile |
| CN103619630A (en) * | 2010-03-30 | 2014-03-05 | 马自达汽车株式会社 | Powertrain system for motor vehicle and motor vehicle lower structure having the same |
| US8794370B2 (en) | 2010-03-30 | 2014-08-05 | Mazda Motor Corporation | Powertrain system for motor vehicle and motor vehicle lower structure having the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3730417B2 (en) | 2006-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5244053A (en) | Structure of automotive vehicle suspension | |
| JPH08268322A (en) | Car body | |
| JP2006290111A (en) | Engine supporting structure | |
| JP3500897B2 (en) | Car front body structure | |
| EP1062110A1 (en) | Vehicle power unit mounting arrangements | |
| KR19990031878A (en) | Front wheel suspension | |
| JP3045337B2 (en) | Car front structure | |
| JP3507350B2 (en) | Vehicle drive unit mounting structure | |
| JP2000085390A (en) | Supporting structure for differential device | |
| JP3182973B2 (en) | Front body structure | |
| WO2024062584A1 (en) | Lower structure of vehicle | |
| JPH09221067A (en) | Cowl structure for vehicle | |
| JP3356978B2 (en) | Power unit mounting structure | |
| JPH1045022A (en) | Front structure of automobile body | |
| JP4304464B2 (en) | Front body structure of the vehicle | |
| JP2002321648A (en) | Body structure of vehicle | |
| JP3597028B2 (en) | Support structure for front differential case | |
| JP2532778Y2 (en) | Mounting structure of rear-wheel drive for automobile | |
| JP2002087321A (en) | Shock-absorbing car body and automobile | |
| US6641153B1 (en) | Engine room arrangement | |
| JP2910866B2 (en) | Powertrain mounting structure | |
| JPH02128923A (en) | Power unit supporting structure for vehicle | |
| KR200274548Y1 (en) | Lower arm of vehicle front suspension | |
| JPH0880866A (en) | Subframe for rear suspension | |
| JPH09263141A (en) | Front structure of automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20050309 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050405 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050602 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20050705 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050901 |
|
| A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20050906 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20051004 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20051006 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081014 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091014 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091014 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101014 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101014 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111014 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111014 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121014 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131014 Year of fee payment: 8 |
|
| EXPY | Cancellation because of completion of term |