JP3045903B2 - Suspension and adjustment method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension and a method for adjusting the suspension, and more particularly, to a vehicle body side member and a tie.
Suspension with both ends fixed to the gear side member
Are fixed to one of the two ends and fixed to the member.
A rod with a fitting attached to one end and the other end of the rod
The piston provided in the section consists of an inserted cylinder.
The coil spring is attached to the shock absorber
And a method for adjusting the suspension.

[0002]

2. Description of the Related Art In a vehicle such as an automobile, a suspension shown in FIG. 5 is widely used as a suspension for reducing a shock received by the vehicle. An upright suspension 100 shown in FIG. 5 has an upper mount 102 and a spring upper seat 106 fixed to the vehicle body integrally fixed to a tip end of a rod 108 by a nut 104. And a cylinder 110 in which a piston (not shown) provided at the rear end of the rod 108 is inserted.
Is installed. Such a coil spring 116
Screw part 112 whose rear end is engraved on the outer wall of cylinder 110
Abuts on a spring seat 114 screwed into the spring seat 114. still,
In the suspension 100 of FIG.
Oil is sealed therein, and a fixing member for fixing the cylinder 110 in an upright state on the tire side of the vehicle is mounted in a concave groove 118 provided at the rear end of the cylinder 110.

[0003] Such suspension 100 in mounting on the vehicle, as shown in FIG. 6 (a), usually, Sasupenshi
When the cylinder 100 is substantially in a no-load state and the cylinder 1
The protrusion length of the rod 108 protruding from 10 has been maximized.
At that time, that is , it is mounted in a state where the piston 120 of the rod 108 has reached the top dead center. At this time, in the suspension 100 shown in FIG. 5, a gap B is formed between the tip of the coil spring 116 and the spring upper seat 106. Therefore, the coil spring 116 is in a non-compressed state. Next, when the vehicle weight is applied to the suspension 100 mounted on the vehicle, as shown in FIG.
The piston 120 descends and the spring upper seat 1
06 and the coil spring 116 contact each other, and the vehicle weight is supported by the elastic force generated by the compression of the coil spring 116. By the way, the vehicle (automobile) is shown in FIG.
In the initial stage of starting to bend in the direction of arrow C shown in FIG.
A large initial force due to deceleration resistance, centrifugal force, etc. acts. Since the initial force is absorbed by the coil spring 116, the tire T side sinks. By changing the vehicle height and the resilience of the coil spring 116 with respect to this initial force, the cornering characteristics of the vehicle can be optimized.

[0004]

In a vehicle equipped with the suspension 100 shown in FIG. 5, when the vehicle height is to be changed, the distance A between the spring seat 114 and the concave groove 118 is adjusted. Can be done by
However, changing the vehicle height may not be possible depending on the unevenness of the road surface or the like, and it is desired that the cornering characteristics can be optimized without changing the vehicle height. On the other hand, the resilience of the coil spring 116 can be changed without changing the vehicle height without changing the cornering characteristics of the vehicle. However, it is very complicated and other characteristics such as ride comfort are greatly changed, so that it is difficult to implement. Note that, even if the position of the spring seat 114 is adjusted while the vehicle weight shown in FIG.
Is changed and the vehicle height is changed, but the elasticity of the coil spring 116 does not change. Therefore, an object of the present invention is to change the resilient force due to the compression of the coil spring and the vehicle height without changing the coil spring.
An object of the present invention is to provide a suspension that can be performed individually and a method of adjusting the suspension.

[0005]

Means for Solving the Problems The inventors of the present invention have repeatedly studied to achieve the above object, and as a result, have found that
2 and the spring upper sheet 106 are separated so that the spring upper sheet 106 can be mounted at an arbitrary position on the rod 108. When the piston 120 provided on the rod 108 reaches the top dead center, the spring upper sheet 106 When the coil spring 116 is in a compressed state by the seat 106 and the spring seat 114,
The piston 120 inserted into the cylinder 110 is still at the top dead center even after moving the spring seat 114. Therefore, by changing the distance between the spring upper seat 106 and the spring seat 114, the amount of compression of the coil spring 116 can be changed, and it has been found that the elasticity of the coil spring 116 can be changed. Reached.

That is, the present invention relates to a vehicle body side member of a vehicle.
Suspension with both ends fixed to tire side member
Are fixed to the member and constitute one of the ends.
A rod having a fixing tool attached to one end thereof;
Cylinder with piston inserted at the other end
Coil spring attached to shock absorber consisting of
A suspension comprising: a fixing member-side adjusting member for adjusting a distance between the fixing member and the rod;
An abutting member that abuts one end of the coil spring; and a cylinder that is provided on the outer wall of the cylinder so as to be adjustable in position and abuts the other end of the coil spring. Even when the coil spring is mounted in a compressed state between the side adjusting member and the suspension is substantially in a no-load state, and the projecting length of the rod projecting from the cylinder is maximized, the above-described position is maintained. The suspension is characterized in that a coil spring between the contact member and the cylinder-side adjustment member is in a compressed state. In the present invention having such a configuration, by using a plurality of shims as the fixing member-side adjusting member, the distance between the fixing member and the contact member can be easily adjusted.

The present invention also relates to a vehicle body side member and a tie
Suspension with both ends fixed to the gear side member
As one of the two ends and fixed to the member
A rod having a fixing tool attached to one end thereof;
Cylinder into which the piston provided at the other end of the valve is inserted
The coil spring is attached to the shock absorber consisting of
When adjusting the resilience of the coil spring by using a mounted suspension, the suspension is provided on a rod via a fixture-side adjusting member that allows adjustment of the distance between the coil spring and the fixture. Said coils
A contact member with which one end of the spring contacts, and the coil spring, which is provided on the outer wall of the cylinder so as to be adjustable in position.
A suspension in which the coil spring is mounted in a compressed state between the other end of the rod and the cylinder-side adjusting member with which the other end of the rod abuts; Even when is maximized, the distance between the fixing member and the contact member is kept constant so that the coil spring is in a compressed state between the contact member and the cylinder-side adjustment member. The position of the cylinder-side adjusting member is adjusted by using the adjusting member, or the distance between the fixing member and the contact member is adjusted by the fixing member-side adjusting member.

[0008]

According to the present invention, the fixing device and the contact member are separated from each other so that the distance between the fixing device and the fixing device can be adjusted.
Setting a predetermined distance between the fastener and the contact member through a member
With kicking a coil spring which is mounted in a compressed state between the contact member and the cylinder-side adjusting member, Suspension
Is substantially no load and protrudes from the cylinder.
Even when the protruding length of the rod is maximized, the rod can be compressed by the contact member and the cylinder-side adjusting member. As a result, there is virtually no suspension
Load is applied and the rod projecting from the cylinder
When the extension length is maximized , the piston is still at the same position as before the change, even if the position of the cylinder-side adjustment member resilient by the coil spring is changed . others
To maintain the distance between the fastener and the abutment member constant.
By changing the position of the cylinder side adjusting member changes the distance between the contact member and the cylinder-side adjusting member is of a resilient force generated due to the coil spring compression can be easily changed. Also, the fixing member side adjustment member
The distance between the fastener and the abutment member can be easily adjusted.
Therefore, keep the spring force of the coil spring constant and
Can be easily changed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings. FIG. 1 is an upright type showing one embodiment of the present invention.
It is a front view about the suspension of. The suspension 10 shown in FIG. 1 has a rod 18 in which an upper mount 12 as a fixing tool for fixing the suspension 10 to the vehicle body side of a vehicle is fixed to a tip end portion with a nut 14.
A coil spring 26 is mounted on a shock absorber composed of a cylinder 20 in which a piston (not shown) mounted on the rear end of the rod 18 is inserted.
The rear end of the coil spring 26 is screwed to a screw portion 22 engraved on the outer wall of the cylinder 20 over a length Z.
It is in contact with a spring seat 24 as a cylinder-side adjusting member. On the other hand, the tip of the coil spring 26 is in contact with the spring upper seat 16 as a contact member fixed to the rod 18 and spaced a distance X from the upper mount 12. The coil spring 26 is in a compressed state by the spring upper seat 16 and the spring seat 24, and resiliently springs the spring upper seat 16 and the spring seat 24. In addition, a plurality of shims 28 are inserted between the upper mount 12 and the spring upper sheet 16 as a fixing-side adjusting member. The vehicle height can be changed. In other words, by increasing or decreasing the number of inserted shims 28,
To adjust the position of the upper mount 12
The distance X without changing the position of the gupper sheet 16
The adjustment can be adjusted and the vehicle height can be changed. In the suspension 10 of FIG. 1, oil is sealed in the cylinder 20, and the cylinder 20 is fixed to the tire side of the vehicle in an upright state in the concave groove 18 provided at the rear end of the cylinder 20. A fixing member is mounted.

[0010] In the suspension 10 shown in FIG. 1
When adjusting the compression amount of the coil spring 26 and adjusting the resilience of the coil spring 26, the suspension
The cylinder 10 in a substantially no-load state,
When the protruding length of the protruding rod 18 is maximized,
2 (a), the piston 30 of the rod 18 is top dead.
It is easy to do it at the position of the point . In this embodiment,
2A, the position of the spring upper seat 16 is adjusted by the spring upper seat 16 and the spring seat 24 so that the coil spring 26 is in a compressed state. FIG. 2 (a)
In the state (1), even if the position of the spring seat 24 is changed, the position of the piston 30 is still at the position of the top dead center because the spring upper seat 16 is repelled upward. Therefore, even if the position of the spring seat 24 is changed, only the distance Y (FIG. 1) between the spring upper seat 16 and the coil spring 2 is changed.
6 can be adjusted, and the elasticity of the coil spring 26 can be adjusted.

Also, a suspension 1 mounted on a vehicle
When the vehicle weight is applied to zero, the vehicle weight is supported by the elastic force generated by the compression of the coil spring 26, as shown in FIG. At this time, coil spring 2
With the compression of 6, the position of the piston 30 changes. In the state shown in FIG. 2B, even if the position of the spring seat 24 is changed, the position of the piston 30 changes and the distance Y
Does not change. In the suspension 10 of this embodiment, the spring upper seat 16 is fixed to the rod 18 at a distance X (FIG. 1) between the spring upper seat 16 and the upper mount 12. Therefore, in the state where the piston 30 has reached the top dead center (FIG. 2A), the screw portion 22 having the length Z
The distance X is kept constant even when the spring seat 24 movably screwed to the position is moved. As described above, when the spring upper seat 16 is fixed at a predetermined position, the distance Y between the spring upper seat 16 and the spring seat 24 is substantially changed without changing the vehicle height.
By changing only (FIG. 1), the compression amount of the coil spring 26 can be changed.

Here, as shown in FIG. 3, when the coil spring 26 having the length G is compressed to the lengths F and E by changing the position of the spring seat 24, the load W and the coil spring are changed. FIG. 4 shows the relationship with the compression amount ΔL (the characteristic of the coil spring 26). That is, assuming that the coil spring 26 having the length G is represented by the straight line G in FIG. 4, the coil spring 26 having the length F that is compressed from the length G moves parallel to the straight line G, It is represented by a straight line F having a large resilience. Further, the coil spring 26 having a length E which is more compressed than the coil spring 26 having a length F
Is represented by a straight line E in which the straight line F moves in parallel and the resilience is greater than the straight line F. Thus, by changing the position of the spring seat 24, the amount of compression of the coil spring 26 can be changed, and the elastic force of the coil spring 26 can be arbitrarily changed. Therefore, as shown in FIG. 7, when the vehicle turns in the direction of the arrow C, the initial force (FIG. 8) acting on the tire T located on the outside with respect to the direction of the arrow C is adjusted to an appropriate resilient force. It is absorbed by the coil spring 16 and the cornering characteristics of the vehicle can be easily optimized. Further, in the suspension 10 of the present embodiment, even if the position of the spring seat 24 is changed in order to change the resiliency due to the compression of the coil spring 26, the gap between the spring upper seat 16 and the upper mount 12 is not changed. Is constant, and the amount of change in the spring seat 24 is small, so that only the elastic force of the coil spring 26 can be changed while the vehicle height is kept substantially constant. Therefore, the resilience of the suspension 10 can be changed regardless of the unevenness of the road surface.

As described above, when the coil spring 26 is compressed,
The suspension according to the present embodiment changes when the resulting elasticity is changed.
Then, the optimal vehicle according to the resilience of the coil spring 26
Can be high . This change in vehicle height is
Distance between Gupper Seat 16 and Spring Seat 24
While keeping Y constant, change the number of shims 28 to
Between the par mount 12 and the spring upper seat 16
Easily change the vehicle height by adjusting the distance X
be able to. In the present embodiment described above, the fixed
Although the shim 28 was used as the member for adjusting the clothing,
By using the cylinder, the vehicle height can be appropriately changed according to the road surface condition. Further, in the present embodiment, the screwing portion 22 for screwing the spring seat 24 is engraved on the upper end of the cylinder 20, but the position of the screwing portion 22 is arbitrary depending on the type of the coil spring 26 used and the like. Position. However, the upper end of the coil spring 26 comes into contact with the pulling sheet 24 screwed to the screwing portion 22 engraved at an arbitrary position of the cylinder 20 so that the upper end of the coil spring 26 comes into contact with the spring sheet 24 so as to be resilient. The shape and the like of the spring upper sheet 16 are changed.

[0014]

According to the present invention, the spring force generated by the compression of the coil spring can be reduced without changing the coil spring .
The change and the change of the vehicle height can be individually performed, and the cornering characteristics of the vehicle can be easily optimized.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a mounting state of a suspension 10 shown in FIG.

FIG. 3 is a front view of a coil spring 26 used for the suspension 10 shown in FIG.

4 is a graph showing a relationship between a compression amount of a coil spring 26 shown in FIG. 3 and an elastic force (coil spring characteristic).

FIG. 5 is a front view showing a conventional suspension 100.

FIG. 6 is an explanatory diagram illustrating a mounting state of the suspension 100 shown in FIG.

FIG. 7 is an explanatory diagram illustrating a state when a vehicle turns a curve.

FIG. 8 is a graph illustrating forces acting on tires located outside the curve when the vehicle turns the curve.

[Explanation of symbols]

Reference Signs List 10 Suspension 12 Upper mount (fixing member) 16 Spring upper seat (contact member) 18 Rod 20 Cylinder 24 Spring seat ( cylinder side adjusting member) 26 Coil spring 28 Shim ( fixing member side adjusting member) 30 Piston

 ──────────────────────────────────────────────────続 き Continued on the front page (56) References Japanese Utility Model Sho-61-139327 (JP, U) Japanese Utility Model Hei 2-6832 (JP, U)

Claims (3)

(57) [Claims] 1. A vehicle body side member and a tire side member of a vehicle.
A suspension to which each of the ends is fixed,
The fixing tool which constitutes one of the members and is fixed to the member is provided at one end.
Mounted rod, provided at the other end of the rod
Shock absorber comprising a cylinder having a piston inserted therein
Suspension with a coil spring mounted on a saw
A Deployment, provided on the rod via a fastener-side adjusting member which allows adjusting the distance between the solid swing fittings, the coil spring
A contact member with which one end of the coil spring contacts, and the other end of the coil spring, which is provided on the outer wall of the cylinder so as to be adjustable in position.
The coil spring is mounted in a compressed state between a cylinder side adjusting member with which the suspension comes into contact, and the suspension is substantially in a no-load state,
A suspension wherein the coil spring between the contact member and the cylinder-side adjustment member is in a compressed state even when the length of the rod projecting from the cylinder is maximized. 2. The suspension according to claim 1, wherein the fixing member-side adjusting member comprises a plurality of shims. 3. A vehicle body-side member and a tire-side member of a vehicle.
As a suspension to which each of the ends is fixed,
A fixing tool that constitutes one of the ends and is fixed to the member is
A rod attached to one end and a rod attached to the other end of the rod.
With a piston into which the piston is inserted.
When using a suspension in which a coil spring is mounted on a shock absorber, and adjusting the resilience of the coil spring , the suspension can adjust the distance between the suspension and the fixing tool. A contact member provided on the rod via a tool-side adjustment member, one end of the coil spring abutting on the rod, and a position adjustment provided on an outer wall of the cylinder ;
Between the other end of the coil spring and the cylinder-side adjustment member with which the coil spring is in contact, a suspension in which the coil spring is mounted in a compressed state is used. Even when the protrusion length is maximized, the distance between the fixing tool and the contact member is kept constant so that the coil spring is in a compressed state between the contact member and the cylinder-side adjustment member. A method of adjusting a suspension, comprising adjusting the position of the cylinder-side adjusting member while holding, or adjusting the distance between the fixing member and the contact member by the fixing member-side adjusting member.