JPH1134625A - Car suspension and auxiliary spring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the up-down movement of a vehicle body by making a suspension easily absorb shocks caused by the uneven spots on the road by helping a spring supporting the weight of a vehicle body to contract by adding an auxiliary spring for applying force to contract the spring and by preventing the movement of the suspension extended by the reactive force of the spring. SOLUTION: An auxiliary spring 5 which reduces a force for contracting a suspension in a state in which a suspension is contracted and increases the force as the suspension is being extended is added to parts constituting the suspension such as damper, spring, link, and stabilizer, which applies a force for contracting the spring supporting the weight of the vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile suspension.

[0002]

[Prior art]

[0003] When the suspension is extended, a spring is attached to the suspension that has a weak force to extend the suspension and increases in force to extend the suspension as the suspension contracts. It serves to absorb the shock when passing through unevenness.

[0004] The suspension always exerts a force in the direction of extension by the force of the spring, and the suspension holds the posture of the vehicle body in a state where the load applied to the spring and the reaction force of the spring to be balanced are balanced.
In the conventional suspension, the spring rate and the free length of the spring are determined so as to maintain a predetermined height and posture of the vehicle body when the spring is compressed by the weight of the vehicle body. However, when the load on the suspension increased, the spring contracted, and when the load decreased, the spring extended and changed the posture of the vehicle body. Conventionally, the spring rate of the spring has been set high or the damper has been set hard to reduce the change in the posture of the vehicle body with respect to the change in load.

When a vehicle passes over a convex portion of the road surface, the spring of the suspension is contracted by pushing up the wheel, and immediately after passing through the convex portion or when passing through a concave portion, the suspension spring is compressed by a reaction force of the spring which has been contracted. Is stretched. In order to absorb the impact of unevenness, it is necessary for the spring to expand and contract smoothly according to the unevenness of the road surface, and in the past it was necessary to set the spring softly and the damper softly so that the spring could expand and contract smoothly. I was

[0006]

In the conventional suspension, when it is desired to reduce the change in the posture of the vehicle body with respect to the change in the load applied to the vehicle body, the suspension is set to be hard so that the impact due to the unevenness of the road surface is easily absorbed. Had a soft suspension. Conventionally, the hardness of the suspension was set according to the performance that the suspension emphasizes, but if the suspension is set hard, it becomes difficult to absorb the impact due to uneven road surface, and if the suspension is set softly, the body of the There is a disadvantage that the posture change becomes large.

According to the present invention, the weight of the vehicle body is increased by adding an auxiliary spring in which the force for shrinking the suspension is weak when the suspension is shrunk and the force for shrinking the suspension increases as the suspension elongates. A suspension that applies force to compress the spring that supports the body and reduces the amount of expansion and contraction of the spring with respect to changes in the load applied from above the spring that supports the weight of the vehicle body, thereby reducing changes in the posture of the vehicle body It is intended to be.

[0008] Further, by applying a force to compress the spring supporting the weight of the vehicle body, the suspension assists the movement of contracting the spring supporting the weight of the vehicle body and also expands by the reaction force of the contracted spring. It is an object of the present invention to provide a suspension capable of suppressing the movement of the vehicle body, easily absorbing the impact due to the unevenness of the road surface, and suppressing the vertical vibration of the vehicle body.

[0009]

Conventionally, by increasing the spring rate of a spring supporting the weight of a vehicle body, the amount of expansion and contraction of the suspension with respect to a change in load is reduced, or the movement of the suspension is increased by making the damper harder. Although the change in body posture was suppressed by limiting, the amount of expansion and contraction of the suspension with respect to changes in load was reduced by applying a force to the spring that supports the weight of the body and compressing it in advance without increasing the spring rate Can be done.

The length of the spring is determined by the free length of the spring and the amount by which the spring is contracted. The amount of contraction when a load is applied to the spring depends on the spring rate of the spring and the magnitude of the applied load. If a load is applied to the spring that has been compressed to some extent by applying a force to the spring in advance, the sum of the previously applied force and the applied load acts as a load to compress the spring, and the spring It is reduced to a length corresponding to the load.

The amount by which the spring is contracted is determined by the load applied to the spring. To contract the spring to a certain length, it is necessary to apply a load corresponding to the spring rate. If a spring with no load applied is contracted by applying a force in some way in advance, it is necessary to apply a load greater than that required to shrink the spring to the previously reduced length in order to further reduce the spring is there.

When a load is applied which is greater than the load required to reduce the spring to the previously reduced length, the spring is reduced to a length corresponding to the increased load. The amount by which the length of the spring changes due to an increase in the load is calculated by subtracting the length of the spring, which has been shortened due to the increased load, from the length of the spring, which was previously shrunk when the spring was previously shrunk. It has been deducted. In the case of a long spring that has not been pre-stressed, it is the length of the long spring minus the length of the spring that was contracted due to the increased load.
If the length of the spring contracted by the increased load is the same, the amount of change in the length can be reduced by the amount of contraction by applying a force in advance. The more the amount of pre-compression of the spring is increased, the smaller the amount of change in the length of the spring.

[0013] By applying a force to the spring of the suspension in advance and compressing it using this principle, the amount of change in the length of the spring with respect to the change in the load applied to the suspension can be reduced. If the amount of change in the length of the spring with respect to the change in the load decreases, the change in the posture of the vehicle body with respect to the change in the load also decreases.

The spring supporting the weight of the vehicle body attached to the conventional suspension is reduced to some extent in advance by the weight of the vehicle body. In order to further contract the spring, a force may be applied so as to contract the spring in some way. By adding an auxiliary spring acting to reduce the spring supporting the weight of the vehicle body, the spring compressed by the weight of the vehicle body can be further reduced.

In the state where the suspension is contracted, any part of the suspension is constituted by an auxiliary spring in which the force for contracting the suspension is weak and the force for contracting the suspension increases as the suspension elongates. , A force can be applied so as to contract a spring supporting the weight of the vehicle body.

When the strength of the auxiliary spring acting to shorten the spring supporting the weight of the vehicle body is increased, the amount by which the spring supporting the body weight is contracted increases, and the length of the spring changes when the load increases. Can be reduced. Also, by increasing the amount by which the spring supporting the weight of the vehicle body is contracted, the suspension is contracted as compared with the case where no auxiliary spring is added, and the vehicle height is reduced.

In the state where the suspension is contracted, when the auxiliary spring is attached so that the force for contracting the suspension is weak and the force for contracting the suspension increases as the suspension elongates, the load applied to the suspension is reduced. As the suspension is increased and the suspension is contracted, the force of the auxiliary spring to contract the spring supporting the weight of the vehicle body decreases. Conversely, when the load applied to the suspension decreases and the spring supporting the weight of the vehicle body expands, the force by which the auxiliary spring attempts to contract the spring supporting the weight of the vehicle body increases.

When the load applied to the suspension increases and the spring starts to contract, the force of the auxiliary spring to compress the suspension decreases. When the load applied to the suspension decreases and the spring starts to expand, the force of the auxiliary spring to contract the suspension decreases. With the increase, the increase / decrease in the load applied to the suspension is offset by the increase / decrease in the force of the auxiliary spring, and the change in the load combining the load applied to the suspension and the force of the auxiliary spring is reduced. The smaller the change in the load applied to the spring supporting the weight of the vehicle body, the smaller the amount of expansion and contraction of the spring.

In order to reduce the amount of change in the load obtained by combining the load applied to the suspension and the force of the auxiliary spring, it is preferable to increase the spring rate of the auxiliary spring to approach the spring rate of the spring supporting the weight of the vehicle body.

When the spring is compressed under a load, the contracted spring generates a reaction force to return to the original length. The reaction force that the spring tends to extend increases as the spring is contracted, and is reduced to a point where the load applied to the spring and the reaction force of the spring balance.

In the conventional suspension, the posture of the vehicle body is held horizontally based on the length of the spring contracted by the weight of the vehicle body. The suspension expanded and contracted based on the length of the spring, absorbing the impact of road surface irregularities while keeping the body level.

When the vehicle passes over the convex portion of the road surface, the wheels are pushed up and the spring of the suspension is contracted. However, if the spring rate of the spring is high or the damper is hard and the spring cannot be quickly contracted, the vehicle body is lifted and causes up and down sway. In the past, a spring with a low spring rate was attached or the damper was set soft to make the spring easier to contract.

In order to make the spring of the suspension easy to contract when passing through the convex portion of the road surface, an auxiliary spring for applying a force to reduce the spring supporting the weight of the vehicle body is added instead of setting the spring rate of the spring low. This can help the spring to shrink and make the suspension spring easier to shrink.

After passing through the convex portion of the road surface, the suspension is extended by the reaction force of the contracted spring.
If the convex portion of the road surface is large and the amount of the spring contracted is large, the reaction force for the spring to expand is also increased. If the reaction force of the spring is large, the spring tends to extend beyond the reference length reduced by the weight of the vehicle body. If the force of the spring that attempts to extend beyond the reference length is large, the vehicle body will be lifted and cause up and down shaking.

In the conventional suspension, the direction in which the damper extends is set to be hard so that the spring is prevented from extending and the vertical swing of the vehicle body is suppressed. If the direction in which the damper extends is set to be hard so that the spring tends to extend when the spring is greatly contracted, the movement due to the reaction force of the contracted spring can be suppressed, but when passing through the concave part The movement of the spring to be extended is hindered by the damper, so that the suspension cannot be extended smoothly and the ground contact of the wheel is reduced.

Instead of setting the damper hard, a reaction force is applied to compress the spring supporting the weight of the vehicle body, thereby reducing the reaction force of the spring. The spring supporting the weight of the vehicle body is extended by the reaction force. It is possible to suppress the movement to be performed. If the movement of the spring to be extended is suppressed, the damper can be set softer accordingly.

When the vehicle passes through a concave portion of the road surface, the suspension is extended by the reaction force of the spring contracted by the weight of the vehicle body. The reaction force of the spring that supports the weight of the vehicle body has a force that balances the load due to the weight of the vehicle body, and is too large as a force for pushing down wheels, links, and the like attached to the lower portion of the spring that supports the weight of the vehicle body. Instead of suppressing the movement of the suspension, which tends to expand rapidly due to the reaction force of the spring by making the damper stiff, the installation of an auxiliary spring reduces the reaction force of the spring, which supports the weight of the body, tends to expand. By setting the damper to be softer by the amount corresponding to the reduction of the reaction force, it is possible to smoothly move the suspension when the vehicle passes through the concave portion of the road surface.

In the state where the suspension is contracted, the weight of the vehicle body is reduced by adding a spring as an auxiliary spring, which has a weak force for contracting the suspension and an increasing force for contracting the suspension as the suspension elongates. Force can be applied to compress the supporting spring.

In the state where the suspension is contracted, the force for contracting the suspension is weakened when the auxiliary spring is contracted and the force for contracting the suspension is increased as the suspension is extended. The length of the auxiliary spring may be set to be equal to or close to the free length of the spring, and the auxiliary spring may be mounted such that the auxiliary spring is extended or contracted as the suspension is extended.

In the case where the auxiliary spring is attached so as to be extended, if the auxiliary spring is extended when attached to the suspension, the force for compressing the spring supporting the weight of the vehicle body can be increased.
Increasing the difference between the free length of the auxiliary spring and the free length of the spring supporting the weight of the vehicle body increases the amount of extension of the auxiliary spring. When the auxiliary spring is mounted so as to be contracted, if the auxiliary spring is mounted so that the amount of contraction of the auxiliary spring when the suspension is extended is increased, the force for compressing the spring supporting the weight of the vehicle body can be increased. Further, by increasing the spring rate of the auxiliary spring, it is possible to increase the force of contracting the spring supporting the weight of the vehicle body.

As the auxiliary spring increases the force for compressing the spring supporting the weight of the vehicle body, the amount of the spring supporting the weight of the vehicle body is reduced, and the vehicle height is reduced. To maintain the vehicle height at the original height, the free length of the spring supporting the weight of the vehicle body may be increased. Increasing the free length of the spring that supports the weight of the vehicle body can increase the suspension stroke.

In order to apply a force to compress a spring supporting the weight of the vehicle body, an auxiliary spring for applying a force to compress the suspension may be attached to any part of the suspension. The spring characteristics of the suspension combined with the spring supporting the weight of the vehicle body can be changed by setting the spring rate and the free length of the auxiliary spring that applies a force to compress the spring supporting the weight of the vehicle body.

The main components of the suspension include a damper, a spring, a link, a stabilizer and the like, and an auxiliary spring can be attached to any of these components. Auxiliary springs can be attached to any of these parts depending on the type of suspension.

When the auxiliary spring is built into the damper, when the suspension is contracted, the force for contracting the suspension is weak and the force for contracting the suspension increases as the suspension elongates. The auxiliary spring is built in between the cylinder and the piston so that the auxiliary spring is contracted when it is pressed.

When the suspension is contracted, the force for contracting the suspension is weak, and the force for contracting the suspension increases as the suspension elongates. One side of the auxiliary spring, which has a shorter free length than the spring supporting the weight of the vehicle body so that the auxiliary spring is stretched when mounted, is connected to the outside of the cylinder and the other side is connected to the end of the piston.

When the auxiliary spring is directly attached to the spring supporting the weight of the vehicle body, when the suspension is contracted, the force for contracting the suspension is weak and the force for contracting the suspension increases as the suspension elongates. The auxiliary spring, whose free length is shorter than that of the spring supporting the weight of the vehicle body, is extended and incorporated into the spring supporting the weight of the vehicle body. Instead of the auxiliary spring having a shorter free length, an elastic material such as rubber may be stretched and incorporated into a spring that supports the weight of the vehicle body.

In a state where the suspension is contracted, an auxiliary spring is provided separately from the spring and the damper so that a force for contracting the suspension is weak and a force for contracting the suspension increases as the suspension elongates. When mounting the auxiliary spring, one side of the auxiliary spring having a shorter free length than the spring supporting the weight of the vehicle body so that the auxiliary spring is stretched when mounted on the vehicle body is connected to the vehicle body, and the other side is connected to the link.

When an auxiliary spring is attached to a link of the suspension, the force for contracting the suspension is weak when the suspension is contracted, and the force for contracting the suspension increases as the suspension elongates. The auxiliary spring may be attached between the vehicle body and the link extending inside the hinge in a shape extending inside the hinge, and may be attached so as to apply a force for pushing down the link inside the hinge.

When the stabilizer is to function as an auxiliary spring in which the force for shrinking the suspension is weak when the suspension is shrunk and the force for shrinking the suspension increases as the suspension elongates, the stabilizer should be linked. In a single state that is not connected to the body, lift the stabilizer so that the position of the part connecting the stabilizer and the left and right links is higher than the position of the link when the suspension is contracted due to the weight of the body, and put it on the body Fix it. When the stabilizer and the link are connected, the stabilizer is pushed down together with the link by the force of the spring supporting the weight of the vehicle body. The stabilizer is twisted by being depressed together with the link, and the twisted stabilizer tends to return, so that a force can be applied to compress a spring supporting the weight of the vehicle body. An auxiliary spring may be attached to a portion where the stabilizer and the vehicle body are fixed, and a force may be applied so as to lift a joint between the left and right links of the stabilizer.

[0040]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings.

[0041]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows that, when the suspension is contracted, the auxiliary spring is attached to the suspension so that the force for contracting the suspension is weak and the force for contracting the suspension increases as the suspension elongates. The parts of the suspension that can be used are shown, and an auxiliary spring can be attached to the damper 1, the spring 2 supporting the weight of the vehicle body, the link 3 or the stabilizer 4. In addition, a force can be applied by using the stabilizer 4 so as to contract the spring 2 that supports the weight of the vehicle body. A specific embodiment in which an auxiliary spring is attached to each component will be described below.

FIG. 2 shows an auxiliary spring 5 in which the force for shrinking the suspension is weak when the suspension is contracted and the force for shrinking the suspension is increased as the suspension elongates as shown in FIG. 1 shows an embodiment in which a cylinder 6 is mounted so that the auxiliary spring 5 can be contracted when mounted on a vehicle body.
The auxiliary spring 5 is built in between the piston and the piston 7.

In FIG. 3, when the suspension is contracted, the auxiliary spring, whose force for contracting the suspension is weak and the force for contracting the suspension increases as the suspension expands, is a damper 1 shown in FIG. In this embodiment, one end of the auxiliary spring 8 has a free length shorter than that of a spring supporting the weight of the vehicle body so that the auxiliary spring 8 is stretched when mounted on the vehicle body. And the other end of the auxiliary spring 8 is connected to the end 1 of the piston.
It is linked to 0.

FIG. 4 shows an auxiliary spring 11 shown in FIG. 1 in which the force for shrinking the suspension is weak when the suspension is contracted and the force for shrinking the suspension is increased as the suspension expands. In this embodiment, the auxiliary spring 11 having a shorter free length than the spring 2 supporting the weight of the vehicle body is stretched, and the hook 2 is used to support the weight of the vehicle body. It has been incorporated into.

FIG. 5 shows an auxiliary spring 13 in which the force for shrinking the suspension is weaker when the suspension is contracted and the force for shrinking the suspension is increased as the suspension elongates as shown in FIG. In this embodiment, an elastic material 14 such as rubber is stretched in place of a coil spring, instead of a coil spring.
Is incorporated in the spring 2 for supporting the weight of the vehicle body.

FIG. 6 shows an auxiliary spring 16 shown in FIG. 1 in which the force for shrinking the suspension is weak when the suspension is contracted, and the force for shrinking the suspension is increased as the suspension elongates. Shows an embodiment attached to link 3 of
The auxiliary spring 16 has a free length shorter than that of the spring 2 that supports the weight of the vehicle body, so that the auxiliary spring 16 is stretched to apply a force to lift the link 3 when mounted on the vehicle body. It is combined with

FIG. 7 shows that when the suspension is contracted, the auxiliary spring 18 is weakened by the force for contracting the suspension, and the force for contracting the suspension is increased as the suspension elongates. FIG. 3 shows an embodiment in which the link 3 shown in FIG. 1 is extended inside the hinge 19 and the auxiliary spring 18 is connected to the vehicle body 20 and the hinge 1.
9, the auxiliary spring 18 is contracted when mounted on the vehicle body so that a force is applied to push down the link 21 inside the hinge.

FIG. 8 shows an auxiliary spring in which, when the stabilizer 4 shown in FIG. 1 is in a state where the suspension is contracted, the force for contracting the suspension is weak and the force for contracting the suspension is increased as the suspension is extended. In a single state in which the stabilizer 22 is not connected to the link, the portion 23 connecting the stabilizer 22 and the left and right links has a suspension reduced by the weight of the vehicle body. The stabilizer 22 is attached to the vehicle body 25 so as to be higher than the position 24.

FIG. 9 shows an auxiliary spring in which, when the stabilizer 4 shown in FIG. 1 is in a state where the suspension is contracted, the force for contracting the suspension is weak and the force for contracting the suspension is increased as the suspension is extended. In the single state where the stabilizer 26 is not connected to the link, the portion 27 connecting the stabilizer 26 and the left and right links is a link 27 at the time of steady running in which the suspension is reduced by the weight of the vehicle body. An auxiliary spring 30 for applying a force to lift the joint portion 27 between the stabilizer and the link is attached to a portion fixing the stabilizer 26 and the vehicle body 29 so as to be higher than the position 28.

[0050]

The present invention is configured as described above, and provides the following effects.

In a state where the suspension is contracted, the force for contracting the suspension is weak and the force for contracting the suspension increases as the suspension elongates. By applying a force to contract the spring, the amount of expansion and contraction of the spring with respect to a change in the load applied from above the spring can be reduced, and the posture change of the vehicle body can be reduced.

When the force of the auxiliary spring for compressing the spring supporting the weight of the vehicle body is increased, the amount by which the spring supporting the weight of the vehicle body is reduced in advance increases, and the load applied to the spring supporting the weight of the vehicle body increases to further reduce the spring. The amount by which the length of the spring changes when it is applied can be reduced.

In a state where the suspension is contracted, the force applied to the suspension is reduced by adding an auxiliary spring which has a weak force for contracting the suspension and an increasing force for contracting the suspension as the suspension is extended. When the spring that supports the body weight increases and the spring starts to contract, the force of the auxiliary spring to contract the suspension decreases, and when the load on the suspension decreases and the spring starts to expand, the force of the auxiliary spring to contract the suspension Is increasing. The change in the force with which the auxiliary spring compresses the suspension reduces the change in the load that combines the load applied to the suspension and the force of the auxiliary spring, thereby reducing the amount of expansion and contraction of the spring that supports the weight of the vehicle body. .

Further, the auxiliary spring is added to apply a force to reduce the spring supporting the weight of the vehicle body, thereby assisting the operation of contracting the spring supporting the weight of the vehicle body and the reaction force of the contracted spring. This makes it possible to suppress the movement of the suspension, which tends to extend, to absorb the impact when passing over unevenness on the road surface, and to suppress the vertical vibration of the vehicle body.

The auxiliary spring, which applies a force so as to compress the spring supporting the weight of the vehicle body, acts to assist the movement of the wheel to be pushed up when the vehicle passes over a convex portion of the road surface and to compress the suspension. Can be easily contracted. By making the spring that supports the weight of the vehicle body easier to contract, it becomes easier to absorb the impact when the wheel runs on the convex part of the road surface.
The stronger the auxiliary spring, the easier the suspension can shrink.

The greater the amount of contraction of the spring supporting the weight of the vehicle body, the greater the reaction force to expand the spring, and the suspension tends to expand rapidly with a strong force. However, when the suspension is contracted, the suspension tends to contract. By adding an auxiliary spring that increases the force to weaken the suspension as the force is weak and the suspension expands, the suspension expands without much restraining the suspension from expanding when the suspension is contracted As the distance increases, the force for suppressing the movement of the suspension trying to extend can be gradually increased.

By adding an auxiliary spring, the suspension is rapidly expanded in a state of being greatly contracted and tends to return to the original length, and the movement of gradually expanding as the suspension is extended is suppressed. The spring of the present invention can be easily returned to the base length quickly, and the movement of the spring trying to extend beyond the base length can be suppressed.

By increasing the force with which the auxiliary spring compresses the suspension, the force for suppressing the reaction force of the spring supporting the weight of the vehicle body can be increased. The damper can be set softer by the amount by which the spring supporting the weight of the vehicle body can be prevented from expanding by the auxiliary spring. By setting the damper softly, the movement of the suspension becomes smooth and the ride comfort and the grounding of the wheels can be improved.

By adding an auxiliary spring that applies a force to compress the spring supporting the weight of the vehicle body,
The vehicle height can be reduced. Since the auxiliary spring expands and contracts in accordance with the expansion and contraction of the suspension, the suspension stroke does not decrease even when the vehicle height is lowered.

Although the vehicle height decreases when the auxiliary spring is added, the vehicle height before adding the auxiliary spring can be maintained by increasing the free length of the spring that supports the weight of the vehicle body. By adding the auxiliary spring, the free length of the spring that supports the weight of the vehicle body can be increased without changing the vehicle height, so that the suspension stroke can be increased without changing the vehicle height.

The parts and positions where the auxiliary spring is mounted are not limited, and can be freely selected in accordance with the type of suspension and a margin of space. The auxiliary spring can be attached to any conventional type of suspension, and the spring characteristics of the suspension can be greatly changed by selecting the spring rate and free length of the auxiliary spring.

When the spring characteristics of the suspension are changed by adding an auxiliary spring, the movement of the suspension can be further smoothed by changing the characteristics of the damper in accordance with the changed spring characteristics.

In a single state where the stabilizer is not connected to the link, the stabilizer is attached to the vehicle body such that the portion connecting the stabilizer and the left and right links is at a higher position than when the suspension is contracted due to the weight of the vehicle body. By fixing, instead of attaching the auxiliary spring, a force for compressing the spring supporting the weight of the vehicle body can be applied by using the torsional force of the stabilizer.

[0064]

[Brief description of the drawings]

FIG. 1 is a sectional view showing a suspension.

FIG. 2 is a sectional view showing a damper of the suspension.

FIG. 3 is a sectional view showing a damper of the suspension.

FIG. 4 is a cross-sectional view showing a suspension spring.

FIG. 5 is a cross-sectional view showing a suspension spring.

FIG. 6 is a sectional view showing a suspension.

FIG. 7 is a sectional view showing a suspension.

FIG. 8 is a side view showing how to attach a stabilizer of the suspension.

FIG. 9 is a side view showing how to attach a stabilizer of the suspension.

[Explanation of symbols]

1, damper 2, spring for supporting the weight of the vehicle body 3, link 4, 22, 26, stabilizer 5, 8, 11, 13, 16, 18, 30, auxiliary spring 6, 9, cylinder 7, piston 10, end of piston 12, 15, hook 14, rubber or other elastic material 17, 20, 25, 29 body 19, hinge 21, link 23, 27 extending inside the hinge 23, 27 Stabilizer and link connecting part 24, 28 During normal running Link location

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI F16F 7/00 F16F 7/00 G

Claims (6)

[Claims] When the suspension is contracted, the weight of the vehicle body is reduced by adding an auxiliary spring in which the force for contracting the suspension is weak and the force for contracting the suspension increases as the suspension expands. Automotive suspension with force applied to compress the supporting spring 2. The vehicle body weight is reduced by incorporating an auxiliary spring into the damper, in which the suspension is weakened when the suspension is contracted and the force for contracting the suspension is increased as the suspension is extended. 2. The vehicle suspension according to claim 1, wherein a force is applied so as to compress a spring supporting the vehicle. 3. An auxiliary spring, in which a force for shrinking the suspension is weak when the suspension is shrunk and a force for shrinking the suspension increases as the suspension elongates, is incorporated in a spring for supporting the weight of the vehicle body. 2. The automobile suspension according to claim 1, wherein a force is applied so as to reduce a spring supporting the weight of the vehicle body. 4. An auxiliary spring is added between the vehicle body and the link in which the force for shrinking the suspension is weak when the suspension is shrunk and the force for shrinking the suspension increases as the suspension elongates. 2. The automobile suspension according to claim 1, wherein a force is applied so as to reduce a spring supporting the weight of the vehicle body. 5. In a single state where the stabilizer is not connected to the link, the position of the portion connecting the stabilizer and the left and right links is higher than the position of the link when the suspension is contracted due to the weight of the vehicle body. 2. The vehicle suspension according to claim 1, wherein a force is applied so as to reduce a spring supporting the weight of the vehicle body by fixing the vehicle body to the vehicle body or attaching an auxiliary spring between the stabilizer and the vehicle body. 6. The system according to claim 1, wherein when the suspension is contracted, the force for contracting the suspension is weak, and the force for contracting the suspension is increased as the suspension expands. Auxiliary spring according to claim 2, claim 4, claim 4, or claim 5.