JPH11115427A - Suspension - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly control a degree of freedom which necessitates restraining of a wheel support member by merely providing one control link member by providing a strut member with a function which restrains a degree of freedom of the wheel support member. SOLUTION: For example, a wheel support member 1 supporting a wheel 2 rotatably is extended to a front side of a vehicle, and the extended end is connected to a bracket 5 of a car body side member by a first connection means constituted by an elastic body bush. A rear side of the wheel support member 1 is connected to a bracket 11 fixed on a car body support member by a control link member 8 extended in the direction of car width, and a strut member 16 is arranged between the wheel support member 1 and the car body side member. The wheel support member 1 and the strut member 16 are mutually connected by a second connection means 12 which allows the turn around an axis L in the direction of car width and restrains it in the direction in which the axis L is wrenched to restrain the change in the direction of camber of the wheel support member 1 by the strut member 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle suspension, and more particularly to a suspension having a wheel support member, a control link member and a strut member connected to the wheel support member.

[0002]

2. Description of the Related Art Conventional suspension devices include, for example, Japanese Patent Application Laid-Open No. 58-209605 (hereinafter referred to as a first conventional example) and Japanese Utility Model Application Laid-Open No. 63-34603 (hereinafter, referred to as a first conventional example).
(Referred to as a second conventional example).

In the first prior art, a lateral link is provided between a front and rear end of a lower portion of a wheel supporting member and a vehicle body-side member in a C-shape when viewed from a plane. A trailing link extending forward of the vehicle is disposed between the vehicle and the wheel-side members, and a strut that extends rearward and extends in a vertical direction is attached to the upper end of the wheel support member. A rear suspension of an automobile having a configuration in which a rubber member is mounted on a vehicle body side member is described.

[0004] In a second prior art, a trailing arm integrally formed with a kingpin for rotatably supporting a wheel is extended forward of a vehicle body, and an extended end of the cross member becomes a vehicle body-side member via a bush. The upper and lower ends of the kingpin constitute lateral arms, respectively, and are connected at a position rearward from the trailing arm attachment portion of the cross member via an upper link and a lower link extending in the vehicle width direction. A rear suspension device for a so-called parallel link vehicle in which a shock absorber is interposed between side members is described.

[0005]

However, the suspension of the first prior art requires two front and rear lateral links in order to restrict the degree of freedom of the wheel supporting member. An unsolved problem is that large space is required for the body-side mounting structure at the link position, which results in a large dead space when placing gasoline tanks, spare tires, mufflers, etc. under the floor, and lowers the layout efficiency of the vehicle. There are issues.

Further, the suspension of the second prior art has a lateral arm structure having a pair of upper and lower links, so that the unsolved problem of the first prior art can be solved. In order to allow the side member members of the vehicle body to pass through, it is necessary to avoid the swing range of the upper link, and as a result, the arrangement of the side members of the vehicle body is increased, the rear floor surface is raised, and the space in the vehicle interior is increased. There is an unresolved issue that will limit the space and trunk space.

Accordingly, the present invention has been made in view of the above-mentioned unresolved problems of the prior art, and the strut member has a function of restraining the degree of freedom of the wheel supporting member, thereby enabling one control. It is an object of the present invention to provide a suspension that can effectively support a wheel supporting member only by providing a link.

[0008]

To achieve the above object, a first aspect of the present invention provides a wheel supporting member which rotatably supports a wheel and extends in a front-rear direction with respect to a rotation axis of the wheel. First connecting means for swingably connecting an extended end of the wheel support member to a vehicle body-side member; and first and second swing means for vertically connecting to the wheel support side of the wheel support member so as to be vertically swingable. A suspension provided with a control link member pivotally connected to a side member and a strut member having an upper end connected to the vehicle body-side member and a lower end connected to the wheel support member; The member and the strut member are connected to each other by a second connecting means formed on the wheel supporting member and allowing rotation about an axis in the vehicle width direction and restricting rotation in the direction in which the axis is twisted. It is characterized in that.

According to the first aspect of the invention, the front-rear direction of the wheel supporting member is restrained by the first connecting member, the vehicle width direction is restrained by the control link member, and the toe direction is controlled by the first connecting member and the control member. Restricted by the cooperation of the link members, the wind-up direction is
The camber direction is further restricted by the second connecting means for connecting the wheel supporting member and the strut member, and the required degree of freedom in the vertical direction of the wheel supporting member is released while the camber direction is open. The five degrees of freedom can be properly restrained.

[0010] The invention according to claim 2 is characterized in that, in the invention according to claim 1, the first connecting means is constituted by one of an elastic bush and a spherical joint.

In the invention according to the second aspect, the first
With this connection means, the wheel support member can be allowed to rotate in all directions around a predetermined center point. Furthermore, the invention according to claim 3 is characterized in that, in the invention according to claim 1 or 2, the wheel support member extends forward of the vehicle with respect to the rotation axis of the rear wheel.

The invention according to claim 3 can be applied as a rear suspension, and the occupation of the space on the vehicle rear side by the wheel support members can be suppressed.

Further, according to a fourth aspect of the present invention, in the first or second aspect, the wheel support member extends rearward of the vehicle with respect to the rotation axis of the front wheel.

The invention according to claim 4 can be applied as a front suspension, and can suppress the occupation of the space on the vehicle front side by the wheel supporting members.

Still further, according to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the second connecting means includes one rotary joint, one sliding bush, and two or more bush members. Is characterized by including any of the following.

According to the fifth aspect of the present invention, the strut member can be rotatably supported with respect to the rotating shaft, and the strut member exerts a restraining force in the camber direction of the wheel support member.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the control link member extends in a substantially vehicle width direction crossing a direction in which the wheel support member extends. It is characterized by having.

In the invention according to claim 6, since the control link member extends substantially in the vehicle width direction,
The degree of freedom in the vehicle width direction of the wheel support member is reliably restrained. Further, in the invention according to claim 7, in the invention according to any one of claims 1 to 5, the control link member extends substantially in the vehicle front-rear direction, and a connection point with a vehicle body side member is the first connection means. Are set at different positions in the vehicle width direction.

In the invention according to claim 7, since the wheel support member and the control link member are two sides forming a triangle, the control link member ensures the degree of freedom of the wheel support member in the vehicle width direction and in the front-rear direction. To be restrained.

Further, according to an eighth aspect of the present invention, in any one of the first to sixth aspects, the control link member is constituted by a drive shaft.

In the invention according to claim 8, the function of the control link member is exerted on the drive shaft. Still further, according to a ninth aspect of the present invention, in any one of the first to sixth aspects of the present invention, the vehicle body-side member connecting the control link member is a steering member.

According to the ninth aspect of the present invention, since the control link member is attached to the steering member, it can be applied to a steering wheel. Also,
According to a tenth aspect of the present invention, in any one of the first to fourth aspects, the toe angle of the wheel supporting member is restricted by the interaction of the first connecting means and the control link member. And

According to the tenth aspect, the toe angle of the wheel supporting member is reliably restrained by the first connecting means and the control link member. Further, the invention according to claim 11 is characterized in that, in any one of the inventions according to claims 1 to 4, the windup angle of the wheel support member is restrained by the action of the first connecting means. .

In the eleventh aspect, the windup angle of the wheel supporting member is restricted by the first connecting means. Furthermore, a twelfth aspect of the present invention is characterized in that, in any one of the first to fourth aspects, the camber angle of the wheel support member is restricted by the action of the strut member.

According to the twelfth aspect, the camber angle of the wheel supporting member is reliably restrained by the action of the strut member. Still further, according to a thirteenth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the movement of the wheel support member in the front-rear direction is restricted by the action of the first connecting means. And

According to the thirteenth aspect of the present invention, the movement of the wheel supporting member in the front-rear direction is reliably restrained by the first connecting means. The invention according to claim 14 is characterized in that, in the invention according to claim 6, the movement of the wheel support member in the vehicle width direction is restricted by the action of the control link member.

According to the fourteenth aspect, the movement of the wheel support member in the vehicle width direction is reliably restrained by the operation of the control link member. Further, the invention according to claim 15 is characterized in that, in the invention according to claim 7, the movement of the wheel support member in the vehicle width direction is restrained by the interaction of the first connecting means and the control link member. And

In the invention according to the fifteenth aspect, the movement of the wheel supporting member in the vehicle width direction is reliably restrained by the interaction between the first connecting means and the control link member.

[0029]

According to the first aspect of the present invention, the degree of freedom of the wheel supporting member to be restrained can be restrained only by the first connecting means, the control link member, the strut member and the second connecting means. Therefore, the efficiency of the suspension space under the floor of the vehicle has been increased, and parts such as gasoline tanks, mufflers, and spare pans can be functionally arranged without interfering with the suspension. As a result, it is possible to obtain an effect that the vehicle interior and the trunk room can be expanded.

According to the second aspect of the present invention, the first connecting means can allow the wheel support member to rotate in all directions around the predetermined center point, and can be used when the wheel bounces and rebounds. The effect is obtained that it is possible to prevent an excessive force from acting on the first connecting means.

According to the third aspect of the invention, the invention can be applied as a rear suspension, the occupation of the space on the vehicle rear side by the wheel support members can be suppressed, and the space of the trunk room can be expanded. Is obtained.

According to the fourth aspect of the present invention, it is possible to apply the present invention as a front suspension, and it is possible to suppress the occupation of the space on the front side of the vehicle by the wheel supporting members, thereby increasing the space of the engine room. Is obtained.

According to the fifth aspect of the present invention, the strut member can be rotatably supported with respect to the rotating shaft, so that the strut member allows the wheel support member to smoothly bounce and rebound. The effect that the restraining force of the member in the camber direction can be exerted is obtained.

According to the sixth aspect of the present invention, since the control link member extends in the vehicle width direction, an effect is obtained that the degree of freedom of the wheel support member in the vehicle width direction can be reliably restrained. .

According to the invention of claim 7, since the control link member extends in the vehicle front-rear direction, the space occupation in the vehicle width direction is eliminated, and the efficiency of suspension space under the floor of the vehicle can be further improved. The effect is obtained.

According to the eighth aspect of the present invention, since the function of the control link member is exerted on the drive shaft, there is no need to separately provide a control link member, and the number of parts can be reduced. .

According to the ninth aspect of the present invention, since the control link member is attached to the steering member, an effect is obtained that the control link member can be applied to steering wheels such as front wheel steering or rear wheel steering.

According to the tenth aspect, an effect is obtained that the toe angle of the wheel supporting member can be reliably restrained by the first connecting means and the control link member.

According to the eleventh aspect, an effect is obtained that the windup angle of the wheel supporting member can be reliably restrained by the first connecting means. According to the twelfth aspect of the present invention, the camber angle of the wheel support member can be reliably restrained by the action of the strut member, and there is no need to provide a separate link member to restrain the camber angle. .

According to the thirteenth aspect of the present invention, an effect is obtained that the first connecting means can reliably restrain the front and rear movement of the wheel support member. Claim 1
According to the fourth aspect, an effect is obtained that the movement of the wheel support member in the vehicle width direction can be reliably restrained by the operation of the control link member.

According to the fifteenth aspect, an effect is obtained that the movement of the wheel support member in the vehicle width direction can be reliably restrained by the interaction between the first connecting means and the control link member.

[0042]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a schematic configuration showing an embodiment when the present invention is applied to a rear suspension, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a side view of FIG. Is a wheel support member that rotatably supports the rear wheel 2, and extends in the vehicle front-rear direction.

The wheel support member 1 has a rear wheel 2
A cylindrical portion 1a for inserting and supporting the axle is formed, and a curved portion 1b for accommodating the tire of the rear wheel 2 is formed from the cylindrical portion 1a toward the front, and a distal end side of the curved portion 1b is the first side. Are rotatably supported on a support bracket 5 provided on the vehicle body-side member 4 via an elastic bush 3 such as a rubber bush constituting the connecting means. For this reason, the wheel support member 1 is allowed to rotate in all directions around the center point at the position of the elastic bush 3, and it is possible to suppress an excessive twisting force from acting. And secure rebound.

Further, support brackets 6a and 6b projecting downward are formed at the rear end of the wheel support member 1 at the inner side of the vehicle, and these support brackets 6a and 6b are connected via elastic bushes 7 such as rubber bushes. A control link member 8 extending slightly obliquely forward in the vehicle width direction is supported so as to be vertically swingable.

The inner end of the control link member 8 in the vehicle width direction is supported by a support bracket 11 provided on the vehicle body side member 10 via an elastic bush 9 such as a rubber bush so as to be vertically swingable. .

Further, a second connecting means 12 is provided at a wide portion of the wheel supporting member 1 at a position slightly forward of the cylindrical portion 1a. As shown in FIG. 4, the second connecting means 12 includes a pair of support brackets 13a and 13b formed at predetermined intervals in the vehicle width direction of the wheel support member 1, and between the support brackets 13a and 13b. The sliding bush 14 is provided, and a bolt-shaped rotating shaft 15 is inserted through the support brackets 13a and 13b and the sliding bush 14 and fastened with nuts.

Here, the sliding bush 14 is
And a pair of bush bodies 14b, 14 slidably contacting the outer periphery of the collar 14a.
c and an outer cylinder 14d that supports these bush bodies 14b and 14c.

For this reason, the sliding bush 14 is
Rotation about the center axis L in the vehicle width direction, which is the center axis of No. 5, is allowed, but rotation in the direction in which the center axis L is twisted is restricted.

The lower end of the strut member 16 is fixed to the outer cylinder 14d of the sliding bush 14. The strut member 16 includes a shock absorber 17 and a coil spring 18 disposed around a piston rod 17a of the strut member 16. The lower end of a cylinder tube 17b of the shock absorber 17 is fixed to the sliding bush 14,
The upper end of the piston rod 17a is supported by a rubber mount 19 attached to the vehicle body side member.

The coil spring 18 is interposed between a rubber seat 19 and a spring seat (not shown) formed on the upper end side of the cylinder tube 17b.

Next, the operation of the first embodiment will be described. The main function of the rear suspension is the wheel support member 1
By releasing the degree of freedom in the vertical direction of the vehicle, the five degrees of freedom of the vehicle front-rear direction, the vehicle width direction, the toe direction, the camber direction, and the wind-up direction are properly restrained while allowing the rear wheel 2 to bounce and rebound. It is to control while.

In the first embodiment, the front and rear restraint of the wheel supporting member 1 is performed by the front end of the wheel supporting member 1 via the elastic bush 3 constituting the first connecting means. Since the elastic bush 3 is connected to a member, the elastic bush 3 mainly performs the positioning operation.

In the vehicle width direction of the wheel support member 1, a control link member 8 is provided extending between the rear end of the wheel support member 1 and the vehicle body side member in the vehicle width direction. Therefore, the control is mainly performed by the operation of the control link member 8.

Further, the restraining of the wheel supporting member 1 in the toe direction is such that the front end side of the wheel supporting member 1
Since the rear end side is connected to the vehicle body side member via the control link member 8 via the control link member 8, the positioning operation of the elastic bush 3 and the operation of the control link member 8 are mainly performed.

Further, the restraining of the wheel supporting member 1 in the camber direction is performed by connecting the wheel supporting member 1 to the second connecting means 1.
A strut member 16 whose upper end is rubber-mounted to the vehicle body-side member is connected via the first connecting member 1. The second connecting means 11 is restrained against rotation in the direction of prying the center axis L in the vehicle width direction. Therefore, the operation is performed by the action of the strut member 16.

Further, the restraining of the wheel supporting member 1 in the wind-ad direction is mainly performed by the positioning action of the elastic bush 3. Therefore, in the first embodiment, only the wheel support member 1, the elastic bush 3 as the first connecting means, the control link member 8, the second connecting means 12, and the strut member 16 are provided.
It is possible to appropriately control the restriction of the degree of freedom required for the rear suspension.

Here, since only one control link member 8 needs to be provided in substantially the same plane as the wheel supporting member 1, a dead space around the vehicle-body-side mounting point is not required as in the above-described first conventional example. As shown in FIG. 5, only a slight dead space around the connecting portion between the control link member 8 and the vehicle body side member is generated, so that the degree of freedom in the layout of the gas tank 21, the muffler 22, and the spare pan 23 is improved, and the rear floor is improved. The lower space efficiency can be greatly improved.

Since there is no need to provide a control link member above the wheel support member 1, the vehicle body side member 25 is lowered to the upper limit of the swing range of the lower control link member 8 as shown in FIG. The rear floor can be lowered and the space in the vehicle interior and trunk can be expanded.

Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, by disposing the control link member in the forward direction of the vehicle,
This is to improve the space efficiency.

That is, the second embodiment corresponds to FIGS. 7 to 9 corresponding to FIGS. 1 to 3 in the first embodiment.
As shown in the figure, elastic bushes 7 and 9 formed at both ends of the control link member 8 are screwed bolts protruding from an inner end in the vehicle width direction of the cylindrical portion 1a of the wheel support member 1, respectively. The control link member 8 is extended in the vehicle front-rear direction by being supported by a support bracket 32 formed on the inner side in the vehicle width direction with respect to the support bracket 5 of the elastic bush 3 of the vehicle-side member 4 and the rotary shaft 31 having the shape of a circle. As shown in FIG. 8, the swing centers P1 of the elastic bushes 3, 7, and 9
The first embodiment described above, except that the line connecting P2 and P3 forms a triangle, and the second connecting means 12 is formed on the rear end side of the wheel supporting member 1. The same reference numerals are given to portions corresponding to those in FIGS. 1 to 3, and the detailed description thereof will be omitted.

Here, as shown in FIG. 10, the second connecting means 12 includes a plate-shaped support bracket 35 in which a through hole 35a extending in the vehicle width direction is formed in the wheel support member 1, and the support bracket 35. Bolt-shaped rotating shaft 36 inserted through
And sliding bushes 37A and 37B interposed on both sides of the support bracket 35 of the rotating shaft 36, and strut mounting brackets 38 bridged between the sliding bushes 37A and 37B.

Here, the sliding bushes 37A, 37B are
A collar 37a externally fitted to the rotating shaft 36;
Bush body 37b slidably in contact with the outer peripheral surface of 7a
And an outer cylinder 37c that supports the bush body 37b. A strut mounting bracket 38 is integrated with the outer peripheral surface of the outer cylinder 37c by fixing means such as welding.

According to the second embodiment, since the wheel support member 1, the control link member 8, and the vehicle body side member 4 form a triangle, the movement of the wheel support member 1 in the front-rear direction is mainly performed in the first direction. , And the movement of the wheel support member 1 in the vehicle width direction is restrained by the cooperative action of the wheel support member 1, the elastic bush 3 and the control link member 8,
The change in the toe direction of the wheel support member 1 is mainly restrained by the positioning action of the elastic bush 3 and the action of the control link member 8, and the change in the camber direction of the wheel support member 1 is controlled by the second connecting means 12 and the strut member 16. And the change in the wind-up direction of the wheel supporting member 1 can be restricted mainly by the positioning action of the elastic bush 2, and the degree of freedom requiring the restriction similarly to the first embodiment described above. Can be properly controlled.

Then, in the second embodiment,
Since the control link member 8 is disposed along the wheel support member 1 in the vehicle front-rear direction, as shown in FIG. 11, there is no dead space inside the vehicle width direction below the rear floor, and the gasoline tank 21, the muffler 22
In addition, the spare pan 23 and the like can be freely arranged, and the space efficiency can be further improved as compared with the first embodiment.

Also, in the second embodiment, the control link member is not required above the wheel supporting member 1, so that the vehicle body side member is connected to the lower control link member 8 in the same manner as in the first embodiment. Can be disposed down to the upper limit of the swing range of the vehicle, and the rear floor can be lowered to increase the space in the vehicle interior and trunk.

In the second embodiment, the case where the control link member 8 is disposed inside the wheel support member 1 in the vehicle width direction has been described. However, the present invention is not limited to this. The control link member 8 may be provided outside the vehicle width direction.

Next, a third embodiment of the present invention will be described with reference to FIG. In the third embodiment, a drive shaft is applied as a control link member in a rear suspension of a rear-wheel drive vehicle.

In the third embodiment, as shown in FIG. 12, the control link member 8 in the first embodiment described above is omitted, and instead, the axle inserted into the cylindrical portion 1a has a vehicle width. Drive shaft 4 provided with constant velocity joints without sliding function at both ends extending in the direction
1, except that it is connected to the output side of a final reduction gear unit 42 fixed to the vehicle body via a connector 1. The same reference numerals as in FIG. 1 denote the same parts as in FIG. However, a detailed description thereof will be omitted.

According to the third embodiment, the inner end in the vehicle width direction of the drive shaft 41 is connected to the final reduction gear unit 42 fixed to the vehicle body-side member, so that the same function as the control link member is provided. , The change in the vehicle width direction and the change in the toe direction of the wheel support member 1 can be restrained, and the degree of freedom requiring the restraint is the same as in the above-described first and second embodiments. Can be properly controlled.

Further, in the third embodiment,
Since the drive shaft 41 performs the function of the control link member, there is no need to separately provide a control link member, and there is an advantage that the number of components can be reduced.

Next, a fourth embodiment of the present invention will be described with reference to FIG. In the fourth embodiment, the present invention is applied to a rear suspension of a four-wheel steering vehicle.
The steering device 51 in which the vehicle width direction inner end of the control link member 8 in the first embodiment described above is fixed to the vehicle body side member instead of the vehicle body side member 10.
1 has the same configuration as that of FIG. 1 described above except that the output shaft is connected to the output shaft via a universal joint such as a ball joint. Omit this.

According to the fourth embodiment, since the control link member 8 is connected to the output shaft of the steering device 51, the toe angle of the suspension can be reduced by controlling the displacement of the steering member 51 in the vehicle width direction. This makes it possible to control the vehicle, thereby obtaining the effect of the rear suspension of the four-wheel steering vehicle and the same effect as that of the first embodiment.

In the fourth embodiment, if a sufficient amount of stroll of the steering device 51 is ensured, the steering device 51 can be applied to a front suspension. It is preferable to extend the rear end of the vehicle to improve the space efficiency of the engine room, and to connect the rear end of the rear end to the vehicle body side member by a ball joint to obtain a large steering angle.

In each of the above embodiments, the case where the first connecting means for connecting the wheel supporting member 1 to the vehicle body side member 4 is constituted by the elastic bush 3 has been described. However, the present invention is not limited to this. Instead, a spherical joint called a ball joint or a pillow ball can be applied. In this case, the positioning operation of the wheel support member 1 becomes more accurate, the degree of freedom around the center point is large, and It is possible to reliably prevent an excessive force from acting.

Further, in each of the above embodiments, the second
Of the bushing 14 and 37A, 37B
However, the present invention is not limited to this, and a rotary joint such as a rolling bearing can be applied, and in principle, rotation around the axis in the vehicle width direction is permitted, but the axis is twisted. It is sufficient that the strut member 16 exerts a restraining force in the camber direction by being restrained in the direction.

Further, in each of the above embodiments,
Although the case where the coil spring 18 is mounted on the shock absorber 17 has been described, the present invention is not limited to this, and the coil spring 18 may be omitted, and a spring member such as a coil spring that supports the vehicle body may be replaced with an optional spring member. May be provided, and in this case, the same effects as those of the above-described embodiment can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a suspension according to the present invention.

FIG. 2 is a schematic plan view of FIG.

FIG. 3 is a schematic side view of FIG. 1;

FIG. 4 is an enlarged sectional view showing a second connecting means.

FIG. 5 is an explanatory diagram showing an underfloor layout according to the first embodiment.

FIG. 6 is an explanatory diagram illustrating an arrangement state of side members according to the first embodiment.

FIG. 7 is a perspective view showing a second embodiment of the present invention.

FIG. 8 is a schematic plan view of FIG. 7;

FIG. 9 is a schematic side view of FIG. 7;

FIG. 10 is an enlarged cross-sectional view showing a second connecting means in the second embodiment.

FIG. 11 is an explanatory diagram showing an underfloor layout according to the second embodiment.

FIG. 12 is a schematic perspective view showing a third embodiment of the present invention.

FIG. 13 is a schematic perspective view showing a fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wheel support member 2 Rear wheel 3 Elastic bush (1st connection means) 4 Body side member 8 Control link member 11 Body side member 12 2nd connection means 13 Sliding bush 16 Strut member 17 Shock absorber 18 Coil spring 37A, 37B Sliding bush 41 Drive shaft 42 Final reduction gear device 51 Steering device

Claims (15)

[Claims] 1. A wheel support member rotatably supporting a wheel and extending in a front-rear direction with respect to a rotation axis of the wheel, and an extended end of the wheel support member is swingably connected to a vehicle body side member. A first linking means, a control link member connected to the wheel supporting side of the wheel supporting member so as to be swingable up and down, and a control link member connected to the vehicle body side member so as to be swingable up and down; In a suspension including a strut member connected to a vehicle body-side member and having a lower end connected to the wheel support member, the wheel support member and the strut member are formed on the wheel support member and extend in a vehicle width direction. The suspension is connected by a second connection means for restricting the rotation in the direction in which the axis is twisted around the axis. 2. The suspension according to claim 1, wherein said first connecting means is constituted by one of an elastic bush and a spherical joint. 3. The vehicle according to claim 1, wherein the wheel supporting member extends forward of the vehicle with respect to a rotation axis of a rear wheel.
Or the suspension according to 2. 4. The vehicle according to claim 1, wherein the wheel support member extends rearward of the vehicle with respect to a rotation axis of a front wheel.
Or the suspension according to 2. 5. The apparatus according to claim 1, wherein the second connecting means includes one of a rotary joint, a sliding bush, and two or more bush members. The suspension according to any one of the above. 6. The suspension according to claim 1, wherein the control link member extends substantially in a vehicle width direction intersecting a direction in which the wheel support member extends. 7. The control link member extends substantially in the front-rear direction of the vehicle, and has a connection point with the vehicle body-side member, the control link member being connected to the first member.
The suspension according to any one of claims 1 to 5, wherein the suspension is set at a different position in the vehicle width direction with respect to the connecting means. 8. The control link member according to claim 1, wherein the control link member comprises a drive shaft.
7. The suspension according to any one of items 1 to 6, wherein 9. The suspension according to claim 1, wherein the vehicle-body-side member connecting the control link member is a steering member. 10. The toe angle of the wheel supporting member is set to the first toe angle.
The suspension according to any one of claims 1 to 4, wherein the suspension is restrained by an interaction between the connecting means and the control link member. 11. The suspension according to claim 1, wherein the windup angle of the wheel support member is restrained by the action of the first connecting means. 12. The suspension according to claim 1, wherein the camber angle of the wheel support member is restrained by the action of the strut member. 13. The suspension according to claim 1, wherein the movement of the wheel support member in the front-rear direction is restrained by the action of the first connecting means. 14. The suspension according to claim 6, wherein the movement of the wheel support member in the vehicle width direction is restrained by the action of the control link member. 15. The suspension according to claim 7, wherein the movement of the wheel support member in the vehicle width direction is restrained by the interaction of the first connecting means and the control link member.