KR20030026563A - Anti-roll apparatus for vehicles - Google Patents

Abstract

PURPOSE: A vehicle anti-roll device is provided to move an anti-roll device to the wanted location in a car by moving a location of a spring into a necessary location. CONSTITUTION: An anti-roll device comprises a lower control arm(41) and an upper control arm(42) connecting with a knuckle of left and right wheels(31,32) and a car body(30); a first link(43) connecting with the side of the car body and the lower control arm; a second link(44,44') installed perpendicularly on the left and right sides of the car body; a spring member(45) connecting with a top and a bottom of the second link like a cross. A third connection part(C,F) attaches a revolute joint in the middle of the second link to connect the lower control arm with a first connection part(A,D) of the first link, the first link with the second connection part(B,E) of the second link, and the second link with the car body. The distance(L1,L2) between the top and the bottom having the spring member centering around the third connection is identical.

Description

Anti-Roll Device for Vehicles {ANTI-ROLL APPARATUS FOR VEHICLES}

The present invention relates to an anti-roll device of a vehicle, and more particularly, to an anti-roll device of a vehicle improved to prevent interference between the anti-roll device and the vehicle body and to move the anti-roll device to a desired position. It is about.

The stabilizer of the vehicle functions as an auxiliary spring for supporting the left and right wheels generated when the body rolls, and attaches both ends of the torsion bar to the left and right suspensions. Reaction forces only work when there is a difference in movement. For example, when the height difference of the left and right wheels is generated by cornering, a reaction force to reduce the height difference occurs, but it does not work when the left and right wheels simultaneously jounce or rebound.

In order to prevent the vehicle body from tilting (roll motion) due to the lateral force at the time of turning the vehicle, a stabilizer is mounted in a normal passenger car.

However, there are some cases in which the stabilizer is not easy to install due to the vehicle design, especially in a structure in which the suspension links are extremely long and the body is arranged low to achieve high mobility, such as a racing car. There is a problem that the mounting of the riser bar is difficult.

Therefore, to solve the above problems, the anti-roll device 10 as shown in FIG. 1 was created. The anti-roll device shown in FIG. 1 is disclosed in Korean Laid-Open Patent Publication 2001-0002259.

As shown, the anti-roll apparatus 10 is comprised with the lower control arm 12 and the stop member 14. The lower control arm 12 is formed by integrally forming the vertical rod portion 18 and the horizontal rod portion 20.

The vertical rod portion 18 is installed by the hinge shaft 24 in a vertical position on the vehicle body 22 side, and one end of the finger member 14 is connected to the upper and lower ends A and B, and the horizontal rod portion 20 extends from the middle of the vertical rod portion 18 and is connected to the knuckle of the wheel.

The finger member 14 is installed by connecting the vertical rod portions 18 of the lower control arm 12 which are installed to face the left and right sides of the vehicle body 22.

In this case, the connection member 14 is connected to the upper and lower ends A, B, C, and D of the vertical rod parts 18A and 18B in a cross shape, and the finger member 14 is connected in a cross shape. 14) is possible if the spring can absorb the impact while retaining the elastic force.

On the other hand, reference numeral 16, which is not described in FIG. 1, is an upper control arm.

In order to operate the anti-roll device 10 of the vehicle configured as described above, the lengths to A and B points must be the same with respect to 24 having a revolute joint. In other words, if the lengths of L1 and L2 are different, the anti-roll function is not performed.

However, in order to make the lengths of L1 and L2 equal to 24 points, L2 points should be sufficiently lowered down to 24 points. However, it is impossible to secure enough space to arrange L2 at the bottom of 24 points on the layout. Do.

In addition, if the L2 is placed at the bottom of the 24 points, it may collide with road obstacles while driving, and the wheel travel during bumping will also be reduced.

The present invention has been made to solve the above problems, the object of the present invention is to provide an anti-roll device of the vehicle to move the anti-roll device to the desired position of the vehicle body by moving the position of the spring to the required position. have.

1 is a view schematically showing the configuration of an anti-roll device of a vehicle according to the prior art.

2 is a view schematically showing the configuration of an anti-roll device of a vehicle according to the present invention.

3 and 4 are schematic views for explaining the operation of the anti-roll device of the vehicle of FIG.

<Description of the symbols for the main parts of the drawings>

30. Body

31,32. Left and right wheel

41. Lower control arm

42. Upper control arm

43. First Link

44,44 '. 2nd link

45. Spring member

An anti-roll device of a vehicle of the present invention for achieving the above object, a knuckle of the wheels installed on the left and right of the vehicle body and a lower control arm connected to the vehicle body; A first link having one end connected to the lower control arm and the other end connected to one side of the vehicle body on an upper side of the upper control arm; A second link connected to the other end of the first link and vertically installed at left and right sides of the vehicle body; And a spring member connected to each other in a cross shape at upper and lower ends of the second link.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 schematically shows an anti-roll device of a vehicle according to the invention.

Here, the description of the configuration of the anti-roll device of the general vehicle will be omitted, and only the configuration according to the features of the present invention will be described.

Referring to the drawings, the anti-roll device of the vehicle according to the present invention is installed on the left and right sides of the vehicle body 30, that is, the lower control arm connected to the knuckles of the left and right wheels 31 and 32 and the vehicle body 30 ( A first link (41), an upper control arm (42), and one end connected to the lower control arm (41), and the other end connected to one side of the vehicle body (30) on the upper side of the upper control arm (42). 43 and second links 44 and 44 ', which are connected to the other ends of the first link 43 and installed vertically on the left and right sides of the vehicle body 30, and the second links 44 and 44'. It is configured to include a spring member 45 connected to each other in a cross form at the upper and lower ends.

And a first connection portion A and D of the lower control arm 41 and the first link 43, and a second connection portion B and E of the first link 43 and the second link 44 and 44 '. ), And the third connection portions C and F provided at the center of the second links 44 and 44 'to connect the second links 44 and 44' to the vehicle body 30 are equipped with a levolute joint. .

In addition, the distances L1 and L2 between the upper and lower ends where the spring members 45 are installed around the third connection parts C and F have the same length.

Referring to the operation of the anti-roll device of the vehicle according to the present invention having the configuration as described above are as follows. Here, the description of the operation of the anti-roll device of the general vehicle will be omitted, and only the operation according to the features of the present invention will be described.

Referring back to the drawings, the anti-roll device of the vehicle according to the present invention is capable of moving the position of the X-shaped spring 14 (see FIG. 1) of FIG. 1 which performs the anti-roll function, that is, Revolute joints are mounted at three positions of the first, second, and third connecting portions A, D, B, E, C, and F based on the left wheel 31, and the cross or X-shaped spring member 45 is provided with c1. Arrange the left and right sides at the positions of and c2. At this time, the lengths of L1 and L2 are mounted equally.

Therefore, the conventional anti-roll device 10 (see Fig. 1) is located at the lower end of the vehicle body 22 (see Fig. 1), the interference occurs, the present invention can prevent it to move the anti-roll device to the desired position of the vehicle body 30 Will be.

More specifically, as shown in FIG. 3, when the left and right wheels 31 and 32 have a jounce together, the second link 44 is counterclockwise, and the second link is rotated. The other second link 44 'on the side opposite to 44 is rotated clockwise.

Therefore, the length between c2 and f1 and the length between c1 and f2 are kept constant so that the force by the X-shaped spring member 45 is not generated. Similarly, if both the left and right wheels 31 and 32 are rebounded, the second link 44 is turned clockwise, and the other second link 44 'is turned counterclockwise so that no force is generated.

On the other hand, when a roll is generated to generate a rebound on the left wheel 31 and a resonance on the right wheel 32 as shown in FIG. 4, both of the second links 44 and 44 ′ rotate clockwise.

Therefore, the length of c2 and f1 is reduced to compressive force, and the length of c1 and f2 is increased to generate tensile force. Accordingly, a force resisting the roll angles of the left and right wheels 31 and 32 is produced by the spring member 45. Similarly, when the rebound occurs in the left wheel 31 and the right wheel 32, both the second links 44 and 44 'rotate counterclockwise to generate a force against the roll.

As described above, the anti-roll device of the vehicle according to the present invention has the following effects.

By moving the conventional B point (see Fig. 1) position to the upper end of the vehicle body, interference with the vehicle body can be avoided, and the mounting of the X-shaped spring member can be facilitated, and the anti-roll device can be moved to the desired vehicle body position. .

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (3)

A knuckle of a wheel provided on the left and right sides of the vehicle body, a lower control arm connected to the vehicle body, and an upper control arm; A first link having one end connected to the lower control arm and the other end connected to one side of the vehicle body on an upper side of the upper control arm; A second link connected to the other end of the first link and vertically installed at left and right sides of the vehicle body; And a spring member connected to each other in a cross shape at upper and lower ends of the second link. The method of claim 1, A third provided at the center of the second link to connect the lower control arm and the first connection portion of the first link, the second connection portion of the first link and the second link, and the second link to the vehicle body; The connecting portion anti-roll device of the vehicle, characterized in that the revolute joint is mounted. The method of claim 2, The distance L1 and L2 between the upper and lower ends of the spring is installed around the third connecting portion has the same length, characterized in that the vehicle anti-roll device.