JPH0645286B2 - Vehicle suspension - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle suspension, and more particularly to a vehicle including a sub-frame in which suspension arms for supporting wheels are pivotally attached to left and right sides respectively. Regarding suspension.

(Prior Art) In a vehicle in which suspension arms for supporting wheels are pivotally attached to left and right side portions of a subframe, and the subframe is coupled to a vehicle body via rubber mounts, the suspension arm is directly coupled to the vehicle body. Compared with other vehicles, the assembly work on the vehicle assembly line can be simplified,
There are advantages that it is easy to ensure the accuracy of assembly and that it is easy to block road noise. On the other hand, the front and rear compliance for riding comfort, the lateral force rigidity for steering stability, and the vertical softness for vibration isolation are the characteristics of the rubber mount placed at the joint between the subframe and the vehicle body. Therefore, various improvements have been made to the shape, arrangement, hardness and the like of the rubber mount.

In the suspension device recorded in Japanese Utility Model Laid-Open No. 55-155605, a suspension member, that is, a support portion of a subframe at two front and left and right positions is provided with an elastic body so that the subframe can move forward, backward, leftward and rightward. At the same time, the support portion is attached to the vehicle body through the elastic body so that the sub-frame can move only in the front-rear direction.

In the suspension device disclosed in Japanese Utility Model Laid-Open No. 56-70408, the front mount member and the rear mount member, which are subframes, are connected to the vehicle body through four rubber mounts arranged in the front, rear, left, and right directions, and the rotation axis of the wheel is rotated. The distance from the front to the front rubber mount is different from the distance from the rotation axis to the rear rubber mount.

In the suspension device described in Japanese Utility Model Publication No. 59-9926, a sub frame is disposed outside the front and rear cross members, and is disposed in front of the front cross member and at the left and right ends via rubber mounts. A mount member to be connected to the vehicle body is provided, and the inner ends of the pair of suspension arms are connected to the cross member, while the front part of the differential carrier is mounted on the mount member and the rear part is mounted on the rear cross member by a rubber mount. Are connected through.

(Problems to be Solved by the Invention) In the suspension device described in the above publication, the subframe has four subframes.
Since it is connected to the vehicle body via rubber mounts arranged at three or three points, two front and rear parts are arranged on each side part of the subframe, or front side parts of the subframe and a rear central part. The shapes and spring constants of the two rubber mounts arranged at and are determined, and after the assembly is installed at a predetermined position, the longitudinal compliance and the steer characteristic when a lateral force acts are determined.

Generally, since the rear rubber mount is formed to be hard in the lateral direction, the selection range such as the spring constant and the mounting direction is small, and the mounting direction of the front rubber mount is restricted by the rear rubber mount. The degree of freedom in setting front and rear compliance and steer characteristics when applying lateral force is limited.

An object of the present invention is to provide a vehicle suspension that can increase the degree of freedom in setting front and rear compliance and steer characteristics when a lateral force is applied, and improve riding comfort and steering stability.

By the way, in the case of a suspension provided with a strut bar for restricting the front-back movement of the wheel support, one end of the strut bar is connected to the sub-frame in order to further enhance the effect of simplifying the assembly work by providing the sub-frame. There is a possibility (for example, the actual exploitation Sho 57-13430
No. 9, gazette, the actual development Sho 59-192407 gazette). In this case, since the longitudinal force transmitted to the subframe via the strut bar is large, it is necessary to increase the rigidity of the connecting portion of the subframe to the strut bar and its surroundings, which is an obstacle to reducing the weight of the subframe. .

Another object of the present invention is to provide a vehicle suspension capable of directly transmitting the longitudinal force transmitted via the strut bar to the vehicle body.

(Means for Solving the Problem) The present invention is a suspension including a sub-frame in which suspension arms for supporting wheels are pivotally attached to left and right sides, respectively, the sub-frame being a front and rear portion of a vehicle body. Is formed so as to be coupled to the vehicle body through six or five elastic mounts that are symmetrically located with respect to the central axis extending in the direction. When the number of the elastic mounts is 6, two of these elastic mounts are formed. A plurality of elastic mounts, one on each side of the sub-frame in front of or behind the axis of rotation of the wheel, spaced inward and outward, and one of the elastic mounts behind or in front of the axis of rotation, If the elastic mounts are arranged on each side without a mount and the number of the elastic mounts is 5, two of these elastic mounts are provided on each side of the subframe in front of or behind the rotation axis. And one of the elastic mounts is arranged at a center in the width direction of the vehicle body between the respective sides on the rear side or the front side of the rotation axis and without the two elastic mounts. To do.

The present invention also provides a vehicle suspension including a sub-frame in which suspension arms supporting a wheel support are pivotally attached to left and right sides, respectively, and a strut bar connected at one end to the wheel support or the suspension arm. The sub-frames are 6 or 5 located symmetrically with respect to a center line extending in the front-rear direction of the vehicle body.
The elastic mounts are formed so as to be coupled to the vehicle body through six elastic mounts, and when the number of the elastic mounts is six, each of the two subframes in front of or behind the rotation axis of the wheel of each of the elastic mounts. The elastic mounts are arranged inside and outside with a space, and one of the elastic mounts is arranged on each side of the rotation axis, which is behind or in front of which the two elastic mounts are absent. In the case of five, two of these elastic mounts are arranged inside and outside on each side of the sub-frame in front of or behind the rotation axis, and one of the elastic mounts is arranged behind or behind the rotation axis. It is arranged at the center in the width direction of the vehicle body between the respective side parts on the front side and without the two elastic mounts, and the other end of the strut bar is arranged on each side part of the subframe. Of One is coupled to the mounting portion to be mounted of sexual mount.

(Operation and effect) The shape, spring constant, non-linearity, etc., of the two elastic mounts arranged on each side of the subframe in front of or in the rear of the rotation axis of the wheel are set to be in the rear or front of the rotation axis. 1 on each side of the frame or in the middle between each side
Even if the elastic mounts individually arranged are the same as those of the conventional one, the elastic mounts can be selected with a certain degree of freedom in consideration of the mutual relation between the two elastic mounts. For example, the elastic constants of one of the two elastic mounts may be larger than the spring constant of the other elastic mount, or the elastic degree of one elastic mount may be sharper than that of the other elastic mount. Etc. can be arbitrarily selected over a considerable range. In addition, when each elastic mount is provided with a portion having a large spring constant and a portion having a small spring constant in the horizontal plane, the two elastic mounts on each side are mounted on the subframe so that the directions of the portions having a large spring constant are different from each other. Can be assembled. In this way, the degree of freedom in manufacturing and assembling the elastic mount is greatly increased.

Regarding the spring constant in the vertical direction, the vibration damping performance can be improved by forming the outer one of the two elastic mounts on each side larger than the inner one.

Regarding the spring constant in the front-rear direction, a portion having a large spring constant and a portion having a small spring constant are formed in the horizontal plane on each of the two elastic mounts on each side, or one elastic mount has a large spring constant. And a small portion and a large spring constant of the other elastic mount. And in the former case, the direction of the portion of each elastic mount having a large spring constant is at an angle with respect to the center line extending in the front-rear direction of the vehicle body, and By assembling so that the angle formed by the direction with the center line is smaller than the angle formed by the inner elastic mount with a large spring constant than the angle formed by the center line, and in the latter case, a large spring constant is formed. By arranging the elastic mount on the outside, riding comfort performance can be secured, and at the same time, steering stability when lateral force acts can be improved.

Regarding the spring constant in the front-back direction, of the two elastic mounts on each side, the spring constant of the elastic mount placed on the outside is made larger than the spring constant of the elastic mount placed on the inside, so that the lateral force is increased. The steering stability during operation can be improved.

When the spring constant of at least one of the two elastic mounts on each side is formed to be non-linear, the position of the apparent mount formed by the two elastic mounts depends on the magnitude of the lateral force when a lateral force is applied. Can be moved to change the steer characteristic.

When the suspension is provided with a strut bar, the strut bar is connected to a mounting portion to which one of the two elastic mounts on each side is mounted, so that the load from the strut bar is directly transmitted to the vehicle body. Thus, the rigidity of the subframe can be reduced and the weight can be reduced.

(Embodiment) As shown in FIG. 1, a suspension 10 includes a subframe in which suspension arms 12 for supporting wheels are pivotally attached to left and right side portions (the right side portion is shown in the figure). Including 14.

In the illustrated example, the suspension arm 12 includes an upper arm 16, a first lower arm 18, and a second lower arm 20. The upper arm 16 is formed in a V-shape in a plan view, and its wide end is pivotally attached to the sub-frame 14 inward in the width direction of the vehicle body as described later. The outer end of the upper arm 16 is connected to the wheel support pair 24 via a ball joint 22.

The outer ends of the first lower arm 18 and the second lower arm 20 have brackets 26 provided on the wheel support pair 24,
28, each of which is swingably connected about a horizontal axis by a bolt 30 via a rubber bush (not shown),
Ie pivotally attached. The inner ends of the first lower arm 18 and the second lower arm 20 are pivotally attached to the subframe 14, as described later.

As shown in FIG. 2, the sub-frame 14 is formed symmetrically with respect to the center line extending in the front-rear direction of the vehicle body, and is located in front of the rotation axis of the wheel 32 attached to the wheel support pair 24 on each side. The two elastic mounts 34, 36 arranged in the region and the one elastic mount 38 arranged in the region behind the rotation axis of the wheel 32 are coupled to the vehicle body as described later.

In the illustrated example, the sub-frame 14 is integrally formed by a pair of members 40 arranged in the front-rear direction and a pair of support members 42 and 44 which are provided between the members 40. The support member 42 is connected to the middle of the member 40, and the support member 44 is connected to the rear end of the member 40. The differential carrier 46 is supported by both support members in a structure known per se.

The two elastic mounts 34, 36 are arranged at the front end portion of the member 40, and the inner elastic mount 34 is located in front of the outer elastic mount 36. On the other hand, elastic mount 3
8 is arranged at the rear end of the member 40. Then, the brackets 50, 52 for the upper arm 16 and the first brackets 50, 52 are provided between the pair of support members 42, 44, which are substantially separated from the front and rear from the drive shaft 48 extending from the differential carrier 46.
A bracket 54 for the lower arm 18 and a bracket 56 for the second lower arm 20 are provided, and each arm is pivotally attached to each bracket by a bolt via a rubber bush (not shown).

Each elastic mount is made of rubber. In the example shown in FIG. 3, the two elastic mounts 34 and 36 on the front side are
The spring constant in the dimensional direction is different between the inside and the outside.

The elastic mount 34 includes an inner cylinder 58 adhered to the inner peripheral surface,
An outer cylinder 60 adhered to the outer peripheral surface. A pair of curls 62 are provided at symmetrical positions with respect to the middle cylinder 58, and these curls extend in the axial direction of the inner cylinder 58. Currant 6
The reference numeral 2 includes a portion 63a whose planar shape is formed into an arc and enlarged portions 63b at both ends of the portion 63a. A portion 35a of the elastic mount 34, which is sandwiched between the enlarging portions 63b facing each other, is filled with rubber. Therefore, this direction x is hard, that is, the spring constant is large, and the direction of y in the y direction orthogonal to the x direction is large. The portion 35b is soft because of the curls 62, that is, the spring constant is small.

The elastic mount 36 includes an inner cylinder 64 adhered to the inner peripheral surface,
And an outer cylinder 66 bonded to the outer peripheral surface. The elastic mount 36 further has a pair of iron plates 67 in a portion 37a filled with rubber at a symmetrical position with respect to the inner cylinder 64.
A pair of curls 68 are provided symmetrically with respect to the inner cylinder 64, and these curls extend in the axial direction of the inner cylinder 64. The currant 68 is a portion 6 in which the plane shape is formed into an arc.
9a and enlarged portions 69b at both ends of the portion 69a.

The circumferential length of the circular arc portion 69a of the currant 68 is shorter than the circumferential length of the circular arc portion 63a of the currant 6. That is, the amount of rubber in the soft portion 37b of the elastic mount 36 is smaller than that in the soft portion 35b of the elastic mount 34, and the curls 6 of the elastic mount 36 are accordingly reduced.
The enlarged portion 69b of 8 is formed large.

The operation differs as follows depending on the difference in shape or size of the curls 62 and 68 of the elastic mounts 34 and 36 and the presence or absence of the iron plate 67.

In the x direction, since the outer elastic mount 36 has the iron plate 67, the substantial rubber length in the horizontal direction becomes shorter, and the inner elastic mount 34 becomes softer.

In the y direction, the spring constant is determined by the shearing of the hard portions 35a, 37a of the elastic mount until the cursed arc portions 63a, 69a are crushed. Since the rubber length in the horizontal direction is long, it is softer than the outer elastic mount 36. If the arc parts 63a and 69a are crushed,
The compression of the y-direction portions 35b and 37b increases the spring constant. In this case, since the horizontal length of the portion 35b of the inner elastic mount 34 is larger than that of the outer portion 37b, the inner portion becomes harder.

In the z direction perpendicular to the paper surface, the hard portion 35 in the x direction
When the spring constant is determined by the shearing of a and 37a, the inner elastic mount 34 becomes softer because the horizontal length of the portion 35a of the inner elastic mount 34 is longer than that of the outer part.

The rear elastic mount 38 corresponds to the elastic mount 34 described above.
The same structure as

The outer cylinder of each elastic mount is pressed into a hole provided in the sub-frame 14. When press-fitting, as shown in Fig. 1,
Of the two elastic mounts 34 and 36, an angle θ ₁ formed by a portion 37a of the outer elastic mount 36 having a large spring constant from the front-rear direction of the vehicle body is a portion 35a of the inner elastic mount 34 having a large spring constant 35a in the front-rear direction. The elastic mounts are positioned such that the angle θ ₃ formed by the rear elastic mount 38 is smaller than the angle θ ₃ formed by the rear elastic mount 38 and the angle θ ₃ formed by the rear elastic mount 38 having the large spring constant is the largest.

In the example shown, θ ₁ is 30 °, θ ₂ is 45 ° and θ ₃
Is 90 °.

The sub-frame 14 is coupled to the vehicle body via the elastic mounts by bolts inserted into the inner cylinders of the elastic mounts. The elastic mounts 36 on the outside of the front when connecting
However, where the rigidity of the vehicle body is high, that is, the rocker plate 9
It is preferably positioned so as to face zero or the torque box 92.

A strut bar 70 pivotally mounted at a rear end of the wheel support 24 is obliquely arranged, and a front end of the strut bar 70 is connected to a mounting portion 72 to which an inner elastic mount 34 is mounted. Fourth
As shown in the figure, a bracket 74 is provided so as to project from the mounting portion 72 of the sub-frame, and within the interval formed by the bracket 74,
An eye 71 provided at the end of the strut bar 70 is arranged. A rubber bush 76 having a sleeve 78 is press-fitted into the eye 71, and a bolt 80 penetrating the sleeve 78 pivotally attaches the strut bar 70 to the bracket 74.

The mounting position of the bracket 74 is such that the extension of the axis of the strut bar 70 matches the axis of the elastic mount 34 in the plan view shown in FIG. 1, and the extension of the axis of the strut bar 70 is elastic in the front view shown in FIG. Mount 3
It is set to the center of the vertical length of 4. As a result, when the elastic mount 34 is coupled to the vehicle body by the stud bolts 84 and the nuts 86 implanted in the vehicle body 82, the load from the strut bar 70 does not generate any moment on the mounting portion 72 and thus on the sub-frame 14. ,
Alternatively, only a slight moment is generated, and the mounting portion 7
2, transmitted to the vehicle body 82 via the elastic mount 34 and the bolt 8. Thus, it is possible to reduce the rigidity of the subframe 14 and reduce the weight thereof. As shown in the figure, when the stud bolt 84 has a cantilever shape, it is preferable to reinforce the stud bolt 82 by bridging the reinforcing plate 88 between the vehicle body 82 and the stat bolt 84.

(Operation and Result of Embodiment) Of the two elastic mounts 34, 36 arranged on each side of the sub-frame 14, the spring constant above and below the outer elastic mount 36 is larger than that of the inner elastic mount 34. Action and effect of this: The outer elastic mount 36 is provided near the rocker panel 90 (FIG. 1) having a large rigidity of the vehicle body or the torque box 92.
, Which is where vibration is less sensitive. Since the upper and lower spring constants of the outer elastic mount 36 are larger than those of the inner elastic mount 36,
More load can be shared. As a result, when the vibration from the actuating gear device is transmitted to the sub-frame 14, more load is transmitted through the elastic mount 36 to a less sensitive portion of the vehicle body, and eventually the sensational vertical vibration transmitted to the vehicle body is transmitted. Less.

Of the two elastic mounts 34, 36 arranged on each side of the sub-frame 14, a portion 37a having a large spring constant of the outer elastic mount 36 forms an angle θ ₁ (FIG. 1) with respect to the front-rear direction of the vehicle body. , Action and effect of the portion 35a of the inner elastic mount 34 having a large spring constant being smaller than the angle θ ₂ formed from the front-rear direction: As shown in FIG. the spring constant and the combined spring constant of _{k 1, k 2, k 3} , k 1 and _{k 2} and _{k o,} the intersection of the left and right _{k o} and O. When the lateral force F due to turning acts, the front elastic mounts MR ₁ , MR ₂ , ML ₁ and ML ₂ receive the frontal lateral force Ff and try to rotate about O, respectively, mr ₁ and mr respectively.
Move to ₂ , ml ₁ , ml ₂ . Rear elastic mount MR ₃ ,
The ML ₃ receives the rearward shared lateral force Fr and moves to mr ₃ and ml ₃ . In this case, even if the sum of k ₁ and k ₂ is constant, k
_{If 2} <k ₁ , the intersection O of k _o moves to O _o .
This means that the amount of movement of the front elastic mount in the lateral direction increases, the suspension tends to understeer, and steering stability increases. Then, k ₁ and k
_Since the sum of ₂ and 1 is constant, the amount of increase in front-rear compliance is extremely small, and the deterioration of riding comfort does not substantially occur.

When the spring constant before and after the outer elastic mount 36 is larger than that of the inner elastic mount 34, that is, k ₂
If <k ₁ , the intersection point O of k _o can be moved to O _o, and the movement of the front elastic mount in the lateral direction can be ensured. As a result, the suspension tends to understeer, which increases steering stability.

The action and effect of at least one of the two elastic mounts 34, 36 arranged on each side of the sub-frame 14 in the front-rear direction having a non-linear spring constant: The spring characteristic of the elastic mount 34 is shown in FIG. A, when the spring characteristic of the elastic mount 36 is non-linear as shown in FIG. 9B, that is, when the increasing tendency of the load until reaching the deflection δ ₁ and the subsequent increasing tendency are given to different characteristics, the deflection δ Elastic mount 34 and elastic mount 36 after reaching ₁
The load sharing with and becomes different. As a result, the position of the virtual mount M (FIG. 6) in which both elastic mounts are replaced by one elastic mount moves according to the size of the deflection δ. Thus, as shown in FIG. 8, the sub-frame 14 in the case of the conventional four or three mount instructions has an angle C which is displaced by the load, but in the present invention, it is suddenly changed to D. , And the so-called steer characteristic can be changed significantly.

Since the steer characteristics can be changed significantly, when a lateral force is applied, the steer angle of the wheel can be set as designed depending on the magnitude of the lateral force. Performance can be improved.

The degree to which the inner elastic mount 34 is non-linear is
Since the outer elastic mount 36 is larger than the non-linear structure and the strut bar 70 is connected to the mounting portion 72 of the inner elastic mount 34, a large load generated when a curb is mounted is directly transmitted to the vehicle body. Greater effect.

(Another example) In the above-described embodiment, two elastic mounts 34, 36 are provided on each side of the sub-frame 14 in front of the rotation axis of the wheel.
However, one elastic mount 38 is arranged on the side portion of the subframe 14 which is a public information. Alternatively, particularly when the suspension 10 is used for the front wheels, two elastic mounts 34, 36 are provided on each side of the subframe 14, which is behind the wheel axis of rotation, to provide the front subframe 1.
One elastic mount 38 can be placed on the side of the four.

The elastic mounts on the rear side or the front side of the rotation axis may be arranged at one side portion of the sub-frame 14 and may be arranged at the center in the width direction of the vehicle body between the side portions. In this case, subframe 1
4 is connected to the vehicle body by a total of 5 elastic mounts.

The two elastic mounts 34, 36 arranged on each side of the sub-frame 14 have different spring constants in the three-dimensional direction. However, for example, the spring constant may be different only in the x direction, only in the y direction, or only in the z direction, or in any two directions.

Strut bar 70 is connected at one end to wheel support 24, but instead of suspension arm 12
Can be combined with. Further, the present invention can be applied even if the suspension arm 12 is composed of only a single arm.

[Brief description of drawings]

Fig. 1 is a plan view of the suspension showing the right half,
The figure is a perspective view of the subframe, and FIGS. 3A and 3B are cross-sectional views of elastic mounts arranged in front of the respective sides of the subframe.
FIG. 4 is a sectional view taken along line 4-4 of FIG. 1, FIGS. 5 and 6 are explanatory views showing the action, FIG. 7 is a characteristic view showing the relationship between deflection and load, and FIG. The figure is a characteristic diagram showing the relationship between the load and the steer angle of the sub-frame. 10: Suspension, 12: Suspension arm, 14: Subframe, 24: Wheel support, 32: Wheel, 34, 34, 38: Elastic mount, 62, 68: Currant, 70: Strut bar, 72: Mounting part.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shogo Tanaka, 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Co., Ltd. (72) Inventor, Hisashi Kumai, 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Co., Ltd. (56) References JP-A-57-205206 (JP, A) Actually opened 61-16907 (JP, U) Actually opened 58-192109 (JP, U)

Claims (6)

[Claims] 1. A suspension including subframes in which suspension arms for supporting wheels are pivotally attached to left and right sides, respectively, wherein the subframes are arranged with respect to a center line extending in the front-rear direction of the vehicle body. 6 symmetrically located
It is formed so as to be coupled to the vehicle body through one or five elastic mounts, and when the number of the elastic mounts is six, two of these elastic mounts are used as a sub unit in front of or behind the rotation axis of the wheel. Spaced inside and outside on each side of the frame, one of the elastic mounts is located on each side of the subframe, either behind or in front of the axis of rotation and without the two elastic mounts. However, when the number of the elastic mounts is 5, two of these elastic mounts are arranged inside and outside at a space on each side of the front or rear subframe of the rotation axis, and one of the elastic mounts is arranged. The rear or front of the rotation axis and the
A vehicle suspension that is located in the widthwise center of the vehicle between the sides of the subframe without the individual elastic mounts. 2. The elastic constant above and below the outer elastic mount of the two elastic mounts arranged on each side is larger than the upper and lower spring constants of the inner elastic mount. The vehicle suspension described in 1). 3. A spring constant before and after an outer elastic mount of the two elastic mounts arranged on each side is larger than a spring constant before and after an inner elastic mount. The vehicle suspension described in 1). 4. The two elastic mounts arranged on each side have a portion having a large spring constant and a portion having a small spring constant in a horizontal plane, and the direction of the portion having a large spring constant of each elastic mount is An angle formed with the center line in the plan view of the suspension, and the direction of the portion of the outer elastic mount having a large spring constant with respect to the center line is the portion of the inner elastic mount having a large spring constant. The vehicle suspension according to claim (1), wherein the direction is smaller than the angle formed with the center line. 5. The vehicle suspension according to claim 1, wherein the front and rear spring constants of at least one of the two elastic mounts arranged on each side are non-linear. 6. A vehicle suspension including a sub-frame in which suspension arms supporting a wheel support are pivotally mounted on each of left and right sides, and a strut bar connected at one end to the wheel support or the suspension arm. The sub-frames are 6 or 5 located symmetrically with respect to a center line extending in the front-rear direction of the vehicle body.
The elastic mounts are formed so as to be coupled to the vehicle body through the individual elastic mounts, and when the number of the elastic mounts is 6, two of these elastic mounts are provided to each of the subframes in front of or behind the rotation axis of the wheel. At one side of the elastic frame at one side and at the other side at a distance, one of the elastic mounts is disposed at each side of the subframe that is behind or in front of the rotation axis and does not have the two elastic mounts; If there are five elastic mounts, two of these elastic mounts are spaced inwardly and outwardly on each side of the subframe in front of or behind the axis of rotation, and one of the elastic mounts is located on the axis of rotation. Is arranged in the center of the width direction of the vehicle body between the respective side portions of the sub-frame, which is the rear or front of the sub-frame without the two elastic mounts, and the other end of the strut bar is provided with the sub-frame. One is coupled to the mounting portion to be mounted in one of the two resilient mounts are arranged on each side of the suspension of the vehicle.