JPH0541441B2 - - Google Patents
Info
- Publication number
- JPH0541441B2 JPH0541441B2 JP58176744A JP17674483A JPH0541441B2 JP H0541441 B2 JPH0541441 B2 JP H0541441B2 JP 58176744 A JP58176744 A JP 58176744A JP 17674483 A JP17674483 A JP 17674483A JP H0541441 B2 JPH0541441 B2 JP H0541441B2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle body
- bracket
- rear wheel
- casing
- elastic member
- 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
- 239000000725 suspension Substances 0.000 claims description 12
- 239000006096 absorbing agent Substances 0.000 description 10
- 230000035939 shock Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 241001247986 Calotropis procera Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/011—Modular constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/60—Subframe construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/13—Small sized city motor vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
Description
【発明の詳細な説明】
本発明は乗心地を改善した小型車両の後輪懸架
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rear wheel suspension system for a small vehicle that improves riding comfort.
後輪駆動にした小型車両の後輪懸架装置とし
て、第１図に示すようなものがある。この装置は
後輪２３を支持するケーシング２４と、この後輪
２３を駆動するエンジン２５を搭載するブラケツ
ト２６とを一体にしており、この一体構成体のブ
ラケツト２６側を車体２１に対し回動可能に枢支
し、かつケーシング２４側を緩衝器２７により支
持している。 There is a rear wheel suspension system for a small vehicle with rear wheel drive, as shown in FIG. This device integrates a casing 24 that supports a rear wheel 23 and a bracket 26 that mounts an engine 25 that drives this rear wheel 23, and the bracket 26 side of this integrated structure is rotatable with respect to the vehicle body 21. The casing 24 side is supported by a shock absorber 27.
ところがこの構成では、後輪２３に伝達された
エンジン２５の駆動トルクT1に対しその反トル
クT2がブラケツト２６に作用するため、この反
トルクT2に拮抗して力Fa，Fbが車体に作用する
ことになる。そのためエンジン２５の駆動トルク
T1が変動すると力Fa，Fbも変動して車体に伝達
される。このうち力Faは緩衝器２７により緩衝
されるが、力Fbは車体に対し直接伝達されるた
め車両の乗心地を悪くする原因になつている。 However, in this configuration, since the counter torque T 2 of the driving torque T 1 of the engine 25 transmitted to the rear wheels 23 acts on the bracket 26, forces Fa and Fb are applied to the vehicle body counteracting this counter torque T 2 . It will work. Therefore, the driving torque of the engine 25 is
When T 1 changes, the forces Fa and Fb also change and are transmitted to the vehicle body. Of these forces, the force Fa is damped by the shock absorber 27, but the force Fb is directly transmitted to the vehicle body, which causes a worsening of the ride comfort of the vehicle.
本発明の目的は上述の問題に鑑み、乗心地を一
層改善した小型車両の後輪懸架装置を提供せんと
することある。 SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a rear wheel suspension system for a small vehicle that further improves riding comfort.
上記目的を達成する本発明の小型車両の後輪懸
架装置は、後輪を支持するケーシングと前記後輪
を駆動するエンジンを搭載するブラケツトとを一
体に構成し、該一体構成体を車体に懸架するよう
にした小型車両において、車体に対し前記ケーシ
ングの左右両端部をそれぞれ緩衝器を介して支持
すると共に、前記ブラケツトの前端部を弾性部材
を介して車体幅方向の略中央位置で支持し、さら
に前記ブラケツトの左右両側にそれぞれ前記ケー
シングと車体とを連結する複数のアーム部材を実
質的に同一の枢支軸によつて枢支し、かつ側面視
で前記ブラケツトの前記弾性部材による支持位置
と前記アーム部材の車体への連結位置とを互いに
近接させたことを特徴とするものである。 A rear wheel suspension system for a small vehicle according to the present invention that achieves the above object integrally comprises a casing that supports a rear wheel and a bracket that mounts an engine that drives the rear wheel, and the integrated structure is suspended on a vehicle body. In a small vehicle, the left and right ends of the casing are supported with respect to the vehicle body through shock absorbers, and the front end of the bracket is supported at a substantially central position in the width direction of the vehicle body through an elastic member, Further, a plurality of arm members connecting the casing and the vehicle body are pivoted on substantially the same pivot shaft on both left and right sides of the bracket, and when viewed from the side, the support position of the bracket by the elastic member is different from that of the bracket. The present invention is characterized in that the arm member and the connecting position to the vehicle body are located close to each other.
以下、本発明を図に示す実施例により説明す
る。 Hereinafter, the present invention will be explained with reference to embodiments shown in the drawings.
第２図は本発明の概要を示すもので、１は車
体、２，３はそれぞれ車体１の前後に設けた前輪
と後輪である。後輪３を支持するケーシング４
は、エンジン５を搭載するブラケツト６と一体構
成になつており、かつエンジン５は動力伝達手段
１０を介して後輪３を駆動するようになつてい
る。上記一体構成体のケーシング４の左右両端部
はそれぞれ緩衝器７を介して車体１に支持され、
ブラケツト６の前端部は弾性部材８を介して車体
幅方向の略中央位置で車体１に支持されている。
さらにブラケツト６の左右両側において、それぞ
れケーシング４と車体１との間に複数のアーム部
材９がその両端を枢支させて回動自在に連結され
ている。ブラケツト６の弾性部材８による支持位
置と、アーム部材９の車体１への連結位置とは、
側面視で互いに近接するように配置されている。 FIG. 2 shows an outline of the present invention, in which 1 is a vehicle body, and 2 and 3 are front wheels and rear wheels provided at the front and rear of the vehicle body 1, respectively. Casing 4 supporting rear wheel 3
is integrated with a bracket 6 on which an engine 5 is mounted, and the engine 5 drives the rear wheels 3 via a power transmission means 10. Both left and right ends of the integrally constructed casing 4 are supported by the vehicle body 1 via shock absorbers 7, respectively,
A front end portion of the bracket 6 is supported by the vehicle body 1 via an elastic member 8 at a substantially central position in the width direction of the vehicle body.
Further, on both left and right sides of the bracket 6, a plurality of arm members 9 are rotatably connected between the casing 4 and the vehicle body 1, with both ends of the arm members 9 being pivotally supported. The position where the bracket 6 is supported by the elastic member 8 and the position where the arm member 9 is connected to the vehicle body 1 are as follows.
They are arranged close to each other in side view.
第３〜９図は具体的な実施例の詳細を示すもの
である。 3 to 9 show details of specific embodiments.
この具体例ではエンジン５から後輪３への動力
伝達はベルト１０′を使用している。またケーシ
ング４とブラケツト６との一体構成体は、ブラケ
ツト６側の端部を支持する弾性部材８をゴム材
８′としており、ゴム材８′はブラケツト６先端に
固定した断面Ｌ状のフランジ１１と車体フレーム
１′に固定した断面Ｕ状のフランジ１２との間を
掛渡すように接着されている。 In this specific example, power is transmitted from the engine 5 to the rear wheels 3 using a belt 10'. Further, in the integrated structure of the casing 4 and the bracket 6, the elastic member 8 supporting the end on the side of the bracket 6 is a rubber material 8', and the rubber material 8' is a flange 11 with an L-shaped cross section fixed to the tip of the bracket 6. and a flange 12 having a U-shaped cross section fixed to the vehicle body frame 1'.
緩衝器７はケーシング４の両端に２本設けら
れ、上方に配置した車体フレーム１′との間に介
在している。また、アーム部材９も左右両側に２
本設けられ、それぞれは前後両端に設けた円筒状
のゴム製ブツシユ１３，１４と車軸に平行なピン
１５，１６を介してそれぞれ車体フレーム１′と
ケーシング４とに回動自在に連結されている。こ
のアーム部材９は、第１０図のように左右２本づ
つ合計４本設けるようにしてもよく、また第１１
図のように二股状に補強アーム９′を設けるよう
にしてもよい。いずれの場合においても、複数の
アーム部材９は実質的に同一の枢支軸によつて枢
支されており、これらが同様のリンク動作を行う
ようになつている。 Two shock absorbers 7 are provided at both ends of the casing 4, and are interposed between the shock absorbers 7 and the vehicle body frame 1' disposed above. In addition, the arm member 9 also has two parts on both the left and right sides.
These are rotatably connected to the vehicle body frame 1' and the casing 4 via cylindrical rubber bushes 13 and 14 provided at both front and rear ends and pins 15 and 16 parallel to the axle, respectively. . The arm members 9 may be provided with a total of four arm members, two on the left and right as shown in FIG.
The reinforcing arm 9' may be provided in a bifurcated shape as shown in the figure. In either case, the plurality of arm members 9 are pivoted by substantially the same pivot shaft, so that they perform similar link operations.
１６は横ロツドであつて、両端がケーシング４
の一側端部と車体フレーム１′の他側端部とにそ
れぞれ枢着され、横荷重を受け持つようにしてい
る。この横ロツド１６の端部は、上記アーム部材
９と同様に円筒状のゴム製ブツシユ１７を介して
連結されている。 16 is a horizontal rod with casing 4 at both ends.
It is pivotally connected to one end and the other end of the vehicle body frame 1', respectively, so as to bear the lateral load. The end of this horizontal rod 16 is connected via a cylindrical rubber bushing 17 similarly to the arm member 9 described above.
上述した後輪懸架装置によると、第１図に示す
ように、エンジン５の駆動トルクT1が変動する
とき、その反トルクT2に拮抗してブラケツト６
に作用する力Fa，Fbの変動は、力Faについては
緩衝器７を介することにより、また力Fbついて
は弾性部材８，８′を介することにより吸収され、
車体１に伝達される変動幅は小さくなる。そのた
め車両の乗心地を改善することができる。 According to the above - mentioned rear wheel suspension system, as shown in FIG.
Fluctuations in the forces Fa and Fb acting on are absorbed by the force Fa through the buffer 7 and the force Fb through the elastic members 8 and 8',
The range of fluctuation transmitted to the vehicle body 1 becomes smaller. Therefore, the riding comfort of the vehicle can be improved.
また、上述した構成の後輪懸架装置では、ブラ
ケツト６には主として反トルクT2が作用するの
に対し、路面からの反力Ｆは主としてアーム部材
９に作用する。そのためブラケツト６に作用する
圧縮力は第１図の従来装置に比べると小さくな
り、ブラケツト６自身の剛性、強度を小さくし、
重量を軽減することができる。 Further, in the rear wheel suspension system having the above-mentioned configuration, the reaction torque T2 mainly acts on the bracket 6, whereas the reaction force F from the road surface mainly acts on the arm member 9. Therefore, the compressive force acting on the bracket 6 is smaller than that of the conventional device shown in FIG. 1, which reduces the rigidity and strength of the bracket 6 itself.
Weight can be reduced.
また、急減速によるエンジン制動をかけたとき
ブラケツト６にはT3というトルクが働くが、こ
のトルクT3はFa′，Fb′という力に分解される。
しかし、この力Fa′，Fb′は弾性部材８，８′や緩
衝器７を介して車体１へ伝達されるため後輪３の
接地力を減少させるように作用することはなく、
安定した制動力を得ることができる。 Furthermore, when the engine is braked due to sudden deceleration, a torque T3 acts on the bracket 6, but this torque T3 is decomposed into forces Fa' and Fb'.
However, since these forces Fa' and Fb' are transmitted to the vehicle body 1 via the elastic members 8 and 8' and the shock absorber 7, they do not act to reduce the ground contact force of the rear wheels 3.
A stable braking force can be obtained.
さらに、ケーシング９と車体１とを連結する複
数のアーム部材９が実質的に１つの枢支軸の回り
に回動すると共に、ブラケツト６の弾性部材８に
よる支持位置がアーム部材９の車体１への連結位
置に近接するように配置されているため、弾性部
材８は後輪３が上下揺動しても大きく変形するこ
とはない。また、ブラケツト６の前端部は弾性部
材８を介して車体幅方向の略中央位置で支持され
ているため、後輪３の片輪のみが上下揺動した場
合でも、弾性部材８には主として捩じれ変形を生
じるだけであり、大きな変形を生じることはな
い。従つて、ゴム材８′などからなる弾性部材８
の耐久性を十分に確保することができる。 Further, the plurality of arm members 9 that connect the casing 9 and the vehicle body 1 rotate substantially around one pivot shaft, and the support position of the bracket 6 by the elastic member 8 is shifted toward the vehicle body 1 by the arm members 9. Since the elastic member 8 is disposed close to the connecting position, the elastic member 8 will not be significantly deformed even if the rear wheel 3 swings up and down. Furthermore, since the front end of the bracket 6 is supported via the elastic member 8 at a substantially central position in the width direction of the vehicle body, even if only one of the rear wheels 3 swings up and down, the elastic member 8 mainly has no torsion. Only deformation occurs, and no large deformation occurs. Therefore, the elastic member 8 made of rubber material 8' or the like
sufficient durability can be ensured.
上述したように本発明の後輪懸架装置は、後輪
を支持するケーシングと前記後輪を駆動するエン
ジンを搭載するブラケツトとを一体に構成し、該
一体構成体に懸架するようにした小型車両におい
て、車体に対し前記ケーシングの左右両端部をそ
れぞれ緩衝器を介して支持すると共に、前記ブラ
ケツトの前端部を弾性部材を介して車体幅方向の
略中央位置で支持し、さらに前記ブラケツトの左
右両側にそれぞれ前記ケーシングと車体とを連結
する複数のアーム部材を実質的に同一の枢支軸に
よつて枢支し、かつ側面視で前記ブラケツトの前
記弾性部材による支持位置と前記アーム部材の車
体への連結位置とを互いに近接させたことによ
り、エンジンの変動トルクの反力はブラケツトと
弾性部材及びケーシングと緩衝器を介して車体に
伝達され、従来装置のように直接伝達されること
がないため車両の乗心地を改善することができ、
しかも上記弾性部材の耐久性を十分に確保するこ
とができる。 As described above, the rear wheel suspension system of the present invention has a casing that supports a rear wheel and a bracket that mounts an engine that drives the rear wheel, which are integrally configured, and a small vehicle that is suspended on the integral structure. The left and right ends of the casing are supported relative to the vehicle body through shock absorbers, the front end of the bracket is supported at approximately the center in the width direction of the vehicle body through an elastic member, and the left and right ends of the bracket are supported through shock absorbers. A plurality of arm members each connecting the casing and the vehicle body are pivoted by substantially the same pivot shaft, and when viewed from the side, the support position of the bracket by the elastic member and the position of the arm member toward the vehicle body are determined. By arranging the connecting positions of the two parts close to each other, the reaction force of the engine's fluctuating torque is transmitted to the vehicle body via the bracket, the elastic member, the casing and the shock absorber, and is not directly transmitted as in conventional systems. Vehicle ride comfort can be improved,
Furthermore, sufficient durability of the elastic member can be ensured.
第１図は従来の後輪懸架装置の概略図、第２図
は本発明の後輪懸架装置の概略図、第３図は本発
明の実施例からなる装置を装備した車両を要部の
み詳細に示した側面図、第４図は同車両の後輪懸
架装置部分の平面図、第５図は同後面図、第６図
は要部の側面図、第７図は第３図の−矢視
図、第８図は第４図の部分の拡大図、第９図は
第８図の−矢視図、第１０図及び第１１図は
それぞれ他の実施例による後輪懸架装置の平面図
である。
１…車体、１′…車体フレーム、３…後輪、４
…ケーシング、５…エンジン、６…ブラケツト、
７…緩衝器、８，８′…弾性部材、９…アーム部
材。
FIG. 1 is a schematic diagram of a conventional rear wheel suspension system, FIG. 2 is a schematic diagram of a rear wheel suspension system of the present invention, and FIG. 3 is a detailed view of only the main parts of a vehicle equipped with a device according to an embodiment of the present invention. 4 is a plan view of the rear wheel suspension system of the same vehicle, FIG. 5 is a rear view of the vehicle, FIG. 6 is a side view of the main part, and FIG. 7 is a side view of the vehicle shown in FIG. 8 is an enlarged view of the portion shown in FIG. 4, FIG. 9 is a view taken along the - arrow in FIG. 8, and FIGS. 10 and 11 are plan views of rear wheel suspension systems according to other embodiments. It is. 1...Vehicle body, 1'...Vehicle frame, 3...Rear wheel, 4
...Casing, 5...Engine, 6...Bracket,
7...Buffer, 8, 8'...Elastic member, 9...Arm member.
Claims (1)
するエンジンを搭載するブラケツトとを一体に構
成し、該一体構成体を車体に懸架するようにした
小型車両において、車体に対し前記ケーシングの
左右両端部をそれぞれ緩衝器を介して支持すると
共に、前記ブラケツトの前端部を弾性部材を介し
て車体幅方向の略中央位置で支持し、さらに前記
ブラケツトの左右両側にそれぞれ前記ケーシング
と車体とを連結する複数のアーム部材を実質的に
同一の枢支軸によつて枢支し、かつ側面視で前記
ブラケツトの前記弾性部材による支持位置と前記
アーム部材の車体への連結位置とを互いに近接さ
せたことを特徴とする小型車両の後輪懸架装置。1. In a small vehicle in which a casing that supports a rear wheel and a bracket that mounts an engine that drives the rear wheel are integrally constructed, and the integral structure is suspended on the vehicle body, both left and right ends of the casing with respect to the vehicle body The front end of the bracket is supported via an elastic member at a substantially central position in the width direction of the vehicle body, and the casing and the vehicle body are connected to each of the left and right sides of the bracket. A plurality of arm members are pivotally supported by substantially the same pivot shaft, and a position where the bracket is supported by the elastic member and a position where the arm member is connected to the vehicle body are close to each other in side view. A rear wheel suspension system for small vehicles featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17674483A JPS6067208A (en) | 1983-09-24 | 1983-09-24 | Rear wheel suspension device for small vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17674483A JPS6067208A (en) | 1983-09-24 | 1983-09-24 | Rear wheel suspension device for small vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6067208A JPS6067208A (en) | 1985-04-17 |
| JPH0541441B2 true JPH0541441B2 (en) | 1993-06-23 |
Family
ID=16019038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17674483A Granted JPS6067208A (en) | 1983-09-24 | 1983-09-24 | Rear wheel suspension device for small vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6067208A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0698948B2 (en) * | 1985-08-16 | 1994-12-07 | ヤマハ発動機株式会社 | Anti-vibration device for vehicle engine |
| JPS6318303U (en) * | 1986-07-22 | 1988-02-06 | ||
| JPH10196387A (en) * | 1997-01-13 | 1998-07-28 | Yamaha Motor Co Ltd | Small vehicle |
| JP5069524B2 (en) * | 2007-09-10 | 2012-11-07 | 株式会社クボタ | Work vehicle body structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5620246U (en) * | 1979-07-25 | 1981-02-23 |
-
1983
- 1983-09-24 JP JP17674483A patent/JPS6067208A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5620246U (en) * | 1979-07-25 | 1981-02-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6067208A (en) | 1985-04-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |