JP2001080327A - Lower arm adaptor for changing vehicle height - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change a vehicle height at low cost without preparing a lower arm different in a specification when a vehicle height of an existent car of a strut type suspension. SOLUTION: This lower arm adaptor for changing a vehicle height comprises: a block 41 whose plane upper and lower surfaces from a predetermined angle; a ball 42 for ball joint provided on the upper surface side of the block 41; and an attaching part 43 provided on the lower surface side of the block 41. In a strut type suspension, the block 41 is attached by the attaching part 43 to the tip 24A of the lower arm inversely attached to a vehicle body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strut-type suspension system in which the height of an existing vehicle is reduced without having to prepare a lower arm having different specifications. The present invention relates to a lower arm adapter for changing a vehicle height.

[0002]

2. Description of the Related Art FIG. 5 shows a side view of a strut 10 and a lower arm 20 of a strut type suspension system for a vehicle which is generally known in the prior art.

The strut 10 is a tire house 1 of a vehicle body.
It is mounted between the wheel 4 and the wheel 30 and absorbs vibration from the wheel 30 and includes a cylinder 11, a piston rod 12, and a coil spring 15 provided on the cylinder 11 and the piston rod 12.

A coil spring 15 includes an upper spring receiver 16 attached to the upper end of the piston rod 12,
The upper and lower portions are locked by a link-shaped lower spring receiver 17 attached to the cylinder 11. Piston 12
Is attached to the tire house 14 of the vehicle body via a rubber bush 19 above the upper spring receiver 16. A mounting bracket 18 is mounted on a lower end of the cylinder 11, and the mounting bracket 18 is mounted on the wheel 30 via a hub (not shown).

[0005] The lower arm 20 is rotatably attached to the vehicle body by a pin (not shown) inserted into a pin hole 22, and a tip of the strut 1 is connected via a ball joint 21.
0 is attached to the lower end.

[0006]

However, the conventional strut type suspension has the following problems.

In recent years, there has been a strong demand for diversification of automobiles,
There is a need to change the height of existing vehicles to obtain driving stability that meets the driver's needs.

The vehicle height of the above-mentioned strut type suspension device is as follows.
For example, the strut 10 may be replaced by replacing the coil spring 15 with a shorter one or mounting a vehicle height adjusting mechanism.
There is a way to change the length.

FIG. 6 is a side view from the rear of the suspension when the vehicle height is lower than that in FIG. When the strut 10 is shortened to lower the vehicle height, the position of the pin hole 22 moves downward as shown in FIG. 6, and the lower arm 20 moves from the position shown by the dotted line to the position shown by the solid line and tilts.

An arm (not shown) is attached to the arm portion 23 of the lower arm 20 in the front-rear direction between the vehicle body and the front of the arm portion 23 in order to obtain strength so that the tip does not shift in the front-rear direction of the vehicle body. Have been. This arm lowers the vehicle height, and when the arm 23 moves to the position shown by the solid line and inclines upward, the arm 23 moves in the forward and backward directions together. Will be out of balance. Therefore, simply shortening the strut 10 in order to lower the vehicle height will disturb the balance of the direction of the wheels 30 and affect the running characteristics of the wheels 30.

Therefore, in order to lower the vehicle height without affecting the traveling characteristics of the wheels 30, it is necessary to replace the lower arm 20 with a lower arm having a different shape, resulting in an increase in cost. Was. In addition, strut 1
It is possible to provide a spacer between the lower arm 20 and the ball joint 21.
It is not preferable because it may hit the zero wheel.

The present invention has been made in view of the above, and when changing the strut-type suspension system to lower the height of an existing vehicle, there is no need to prepare lower arms having different specifications, and the vehicle height can be reduced. It is an object of the present invention to provide a lower arm adapter for changing the vehicle height, which can be changed at low cost.

[0013]

According to the present invention, there is provided a lower arm adapter for changing a vehicle height, comprising: a block having a flat upper surface and a lower surface having a predetermined angle; and a ball for ball joint provided on the upper surface side of the block. And a mounting portion provided on the lower surface side of the block, wherein the strut type suspension device is configured such that the block is mounted to the distal end portion of a lower arm mounted on the vehicle body with the upside down being mounted on the vehicle body by the mounting portion.

Further, the lower arm adapter for changing the vehicle height according to the present invention comprises a block having a flat upper surface and a lower surface having a predetermined angle, a shaft formed in the shape of a square, and an upper portion of the shaft formed in the shape of a square. A ball joint ball penetrating through a through hole of the block and coupled to an upper end of the upper portion; and a mounting portion provided at a lower portion of the U-shaped shaft. The block is attached to the tip of a lower arm attached to the vehicle body with the attachment portion by the attaching portion.

[0015]

Embodiments of the present invention will be described below.

FIG. 1 is an external view of a strut type suspension system for a vehicle for explaining a lower arm adapter 40 for changing the vehicle height according to the present invention.

The strut suspension of FIG. 1 is, for example,
A lower arm adapter 40 for changing the vehicle height is attached via a ball joint 21A between a strut 10A that lowers the vehicle height by a coil spring 15A that has been replaced with a shorter one and a tip of a lower arm 20A. .

The lower arm 20A is obtained by mounting the lower arm 20 shown in FIG.
It is rotatably attached to the vehicle body by a pin (not shown) inserted into 2A. Pin hole 22 (see FIG. 5) of lower arm 20 (see FIG. 5) attached to the vehicle body
However, when the lower arm 20A is oriented parallel to the front-rear direction of the vehicle body, the lower arm 20A may be mounted upside down.
When the pin holes 22 (see FIG. 5) of the vehicle body (see FIG. 5) are not oriented parallel to the front-rear direction of the vehicle body, the lower arms 20 (see FIG. 5) mounted on the left and right sides of the vehicle body are replaced with each other to be turned upside down. Just attach it.

A wheel 30 is mounted on a mounting bracket 18 at the lower end of the strut 10A via a hub (not shown) as in FIG.

Therefore, the arm portion 23 of the lower arm 20A
FIG. 6A shows a case where the vehicle height is not lowered even if the vehicle height is lowered.
Since the arm portion 23 of the lower arm 20 shown by a dotted line is kept substantially horizontal, and the arm (not shown) attached between the lower arm 20A and the vehicle body is also kept substantially horizontal. When the vehicle travels without affecting the traveling characteristics of the wheels 30, the lower arm tip portion 24A
Moves smoothly up and down.

FIG. 2 shows a situation where the lower arm adapter 40 for changing the vehicle height according to the present invention is attached to the lower arm 20A, FIG. 2 (A) is a plan view, and FIG. 2 (B) is a side view. .

The lower arm 20A has a lower arm tip 2
The lower arm adapter 40 for changing the vehicle height is mounted on the upper part of the lower arm 4A, is rotatably mounted on the vehicle body through the pin hole 22A, and an arm (not shown) in the front-rear direction is mounted between the lower arm 20A and the vehicle body through the mounting hole 25A. Can be

FIG. 3 is a vertical sectional view of the lower arm adapter 40 for changing the vehicle height according to the present invention.

This lower arm adapter 40 for changing the vehicle height
Is composed of a block portion 41 having a triangular cross section in which a planar upper surface 41U and a lower surface 41D have a predetermined angle, a ball joint ball 42, and a mounting portion 43 to the lower arm tip portion 24A.

The ball for ball joint 42 is connected to a shaft 45 in which a thread groove is formed, and the shaft 45 is screwed into a screw hole 41A of the block portion 41 and locked by a lock nut 46, so that the ball is attached to the block portion 41. Can be The ball for ball joint 42 is inserted into a receiving portion (not shown) of the ball for ball joint 42 to form the ball joint 21A shown in FIG.

The mounting portion 43 has a bolt 47 having a thread groove formed at the tip thereof. The bolt 47 passes through the through hole 24B and is screwed into the screw hole 41B of the block portion 41. Is fixed to the lower arm tip 24A.

Therefore, even if the vehicle height is lowered, as described above, by attaching the vehicle height changing lower arm adapter 40 having a simple structure, the lower arm can be used during traveling without affecting the traveling characteristics of the wheels 30 (see FIG. 1). Tip 24
A moves smoothly up and down.

FIG. 4 is a vertical sectional view of a lower arm adapter 50 for changing the vehicle height according to another embodiment of the present invention.

This lower arm adapter 50 for changing the vehicle height
Are a block portion 51 having a triangular cross section with a flat upper surface 51U and a lower surface 51D;
And a shaft 55 formed in a U-shape, and a mounting portion 53 to the distal end portion 24A of the lower arm.

The shaft 55 formed in a U shape has an upper portion 55A having a U shape in which the through hole 51A of the block portion 51 is formed.
A ring 56 and a ball 52 for a ball joint are attached to the upper end thereof, and the lower part 55B of the U shape has an attachment part 53 at the lower end. The ball joint ball 52 is inserted into a receiving portion (not shown) of the ball joint ball 52 to form the ball joint 21A shown in FIG.

The mounting portion 53 is a lower portion 55 of the shaft 55.
B having a nut 48 screwed into a screw groove provided in B,
The lower portion 55B of the shaft 55 is inserted into the through hole 24B and screwed with the nut 48, and the lower arm adapter 50 for changing the vehicle height is fixed to the lower arm tip portion 24A.

Therefore, even when the vehicle height is reduced, the running characteristics of the wheels 30 (see FIG. 1) are affected similarly to the embodiment of FIG. 3 by attaching the vehicle height changing lower arm adapter 50 having a simple structure. During traveling, the lower arm tip portion 24A smoothly moves up and down.

The above-described block portion 41 is formed in a triangular cross section, and the shaft 45 is fixed in substantially the same direction as the strut 10A. Therefore, the ball joint ball 42 can be attached effectively in terms of strength. .

Further, similarly, the above-mentioned block portion 51 is formed in a triangular cross section, and
Since A is fixed in the same direction as the strut 10A, the ball joint ball 52 can be attached effectively in terms of strength.

The ball joint ball 42 of the vehicle height changing lower arm adapter 40 and the ball joint ball 52 of the vehicle height changing lower arm adapter 50 described above.
Means that the camber angle of the wheel 30 can be changed by changing the position in the left-right direction of the vehicle body.

[0036]

According to the present invention, there is provided a lower arm adapter for changing a height of a vehicle, comprising: a block having a flat upper surface and a lower surface having a predetermined angle; a ball for ball joint provided on the upper surface side of the block; And a mounting portion provided on the lower surface side of the lower arm, and in the strut type suspension device, the block is mounted to the distal end portion of the lower arm mounted on the vehicle body by turning the vehicle upside down. When making changes, by attaching the lower arm adapter for changing the vehicle height of the present invention,
During traveling, the tip of the lower arm moves smoothly in the vertical direction without affecting the traveling characteristics of the wheels, and the vehicle height can be changed at a low cost with a simple structure.

Further, the lower arm adapter for changing the vehicle height of the present invention,
A block having a plane upper surface and a lower surface having a predetermined angle, a shaft formed in a U-shape, and an upper portion of the U-shape shaft penetrates a through hole of the block and is at an upper end of the upper portion. A ball joint ball connected thereto, and a mounting portion provided at a lower portion of the V-shape shaft, wherein the mounting portion is mounted on a distal end portion of a lower arm mounted on a vehicle body with the strut type suspension device turned upside down. Because the block is attached by the part,
When making a change to lower the vehicle height, by attaching the vehicle height changing lower arm adapter of the present invention, the lower arm tip moves smoothly in the vertical direction during traveling without affecting the traveling characteristics of the wheels, and has a simple structure. The vehicle height can be changed at low cost.

[Brief description of the drawings]

FIG. 1 is an external view of a strut type suspension device for a vehicle for explaining a lower arm adapter for changing a vehicle height according to the present invention.

FIG. 2 shows a state in which a vehicle height changing lower arm adapter according to the present invention is attached to a lower arm, and FIG.
Shows a plan view, and (B) shows a side view.

FIG. 3 is a vertical sectional view of a lower arm adapter for changing the vehicle height according to the present invention.

FIG. 4 is a vertical sectional view of a lower arm adapter for changing a vehicle height according to another embodiment of the present invention.

FIG. 5 is a side view of a strut and a lower arm of a strut type suspension system for a vehicle generally known in the related art.

6 shows a side view from the rear of the suspension when the vehicle height is lower than in the situation of FIG. 5;

[Explanation of symbols]

 10, 10A strut 20, 20A lower arm 21, 21A ball joint 23, 23A arm part 24A lower arm tip part 40, 50 Lower arm adapter 41, 51 block height 42, 52 ball joint ball 43, 53 mounting part 45, 55 shaft

Claims (2)

[Claims] 1. A block in which a planar upper surface and a lower surface have a predetermined angle, a ball joint ball provided on the upper surface side of the block, and a mounting portion provided on the lower surface side of the block. A lower arm adapter for changing a vehicle height, wherein the block is attached to a distal end portion of a lower arm attached to a vehicle body in a strut type suspension device by turning upside down. 2. A block having a flat upper surface and a lower surface having a predetermined angle, a U-shaped shaft, and an upper portion of the U-shaped shaft passing through a through hole of the block. A ball joint ball connected to an upper end of an upper portion, and a mounting portion provided on a lower portion of the U-shaped shaft; A lower arm adapter for changing a vehicle height, wherein the block is attached to a distal end portion by the attaching portion.