KR20020048790A - Rear suspension of s vehicle - Google Patents

Abstract

PURPOSE: A rear suspension of a vehicle is provided to make the assembling simple and to achieve satisfactory rigidity to a horizontal direction. CONSTITUTION: Right and left separable rear suspensions(10,10') are composed of knuckles(11,11'), disks(12,12') fixed to the knuckles, trail arms(13,13') connected to the knuckles, fixed to the vehicle body, and dampers(21,22) fixed to the knuckle, fixed to the vehicle body. The dampers have a spring. The distal end portion of the knuckle are fixed each to hinge-connecting members(32) installed to a cross member(30) by a hinge shaft so as to be turned. A hinge-connecting member is installed to the distal end portion of the knuckle and the hinge-connecting member of the distal end portion of the knuckle and the hinge-connecting member of the cross member are fixed by the hinge shaft to be turned. Therefore, satisfactory horizontal rigidity is achieved and productivity is improved.

Description

Rear suspension of s vehicle

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear suspension mounted on a vehicle, and more particularly, to a rear suspension of a vehicle which is easily assembled while stiffness in the lateral direction is satisfactorily obtained.

As is well known, the suspension is to cushion the impact from the road surface while driving the vehicle so that the riding comfort is improved, and various kinds of suspensions have already been developed and used.

Among them, an axle beam type suspension and a McPherson type suspension are mainly used as the rear suspension. The axle beam type suspension shown in FIG. 1 has an advantage that the assembly structure is simple, and the assembly structure is simple.

However, such an axle beam suspension, when an external force is applied in the lateral direction in the case of a lateral collision, the applied external force is transmitted through the cross member (not shown) through the laterally loaded rod (1; When the external force is largely applied, the entire suspension is pushed in the opposite direction to which the external force is applied, and stress is concentrated at the connection portion between the radial rod 1 and the cross member, and the connection portion is broken. Is generated. Thus, such axle beam type suspension has been limited in its use despite the advantages of being easy to assemble.

In addition, in the McPherson-type suspension as shown in FIG. 2, the left suspension 10 and the right suspension 10 'are completely independent, and each of these suspensions 10, 10' is a lateral rod 2; The cross member 3 is configured to be installed independently of each other, so that even when an external force is applied in the lateral direction, only one of the suspensions 10 and 10 'is pushed in the opposite direction to which the external force is applied. It has the advantage of superior lateral stiffness compared to suspensions.

However, such a McPherson suspension is assembled separately from the left and right suspensions (10, 10 '), and then the left and right suspensions (10, 10') are cross-membered (3) via a lateral rod (2). Since it must be connected to the individually, the assembly member is increased, thereby increasing the number of assembly labor caused a problem that the productivity is lowered.

Accordingly, the present invention has been invented to solve the above problems, and an object thereof is to provide a rear suspension of a vehicle which is easy to assemble and satisfactorily obtains rigidity in the lateral direction.

1 is a view showing an example of a rear suspension according to the prior art, a perspective view schematically showing an axle beam type suspension,

Figure 2 is a view showing an example of a rear suspension according to the prior art, a perspective view schematically showing a macpus suspension,

3 is a perspective view of a rear suspension according to the present invention;

4 is an enlarged perspective view of a portion X of FIG. 3 viewed from another direction;

5 is an enlarged perspective view of a portion Y of FIG. 3;

FIG. 6 is a diagram corresponding to FIG. 5 and illustrates another example.

-Explanation of terms for the main parts of the accompanying drawings-

10; Left suspension, 10 '; Right suspension,

11,11 '; Knuckles, 11a, 11a '; Knuckle Tip,

11b; Hinge shaft insertion holes, 12, 12 '; disk,

13,13 '; Trail arm, 14; Hinge connecting member,

14a; Seating portion 14b; Hinged Connections,

14c; Hinge shaft insertion holes 21 and 22; Spring damper,

30; Crossmember, 31,31 '; Fastener,

32,32 '; Hinge connecting member, 32a; main body,

32b; Seating portion, 32c; Hinge shaft insertion hole,

32d; Filling material.

The present invention for achieving the above object is a knuckle, a disk that is rotatably fixed to the knuckle, a trailing arm that one end is connected to the knuckle while the other end is rotatably fixed to the vehicle body, one end to the knuckle In the left and right separate type rear suspension of a vehicle, which is a damper with a spring fixed to the vehicle body and the other end is fixed to the vehicle body, the knuckle end of the left and right suspensions is connected to the hinge connecting member provided at the cross member via a hinge shaft. It is a structure characterized by being rotatably fixed.

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

Figure 3 is a perspective view of the rear suspension according to the present invention, the same reference numerals are attached to the same parts as in Figures 1 and 2 showing the prior art, and the description thereof will be omitted.

According to FIG. 3, the rear suspension according to the present invention includes knuckles 11, 11 ′, disks 12, 12 ′ rotatably fixed to the knuckles 11, 11 ′, and one end of the knuckles 11, 11 ′. Trail arm (13,13 '), the other end being rotatably fixed to the body, and one end being fixed to the knuckle (11,11') while the other end is fixed to the body A hinge comprising a left and right suspension (10, 10 ') consisting of (21, 22), the knuckle tip (11a, 11a') of the left and right suspension (10, 10 ') is provided on the cross member 30 Each of the connecting members 32 and 32 'is rotatably fixed via a hinge shaft.

In the present embodiment, the hinge connecting members 32 and 32 'of the cross member 30 include the hinge connecting members 14 provided at the knuckle tip portions 11a and 11a' or the knuckle tip portions 11a and 11a '. A main body which is formed to be rotatable seating portion 32b, a hinge shaft insertion hole 32c into which the hinge shaft is inserted, and a filler seating groove filled with the filler 32d is welded to the cross member 30. 32a and; It consists of the structure which consists of the filler 32d which fits and is fixed to the filler mounting groove of the main body 32a (refer FIG. 4).

On the other hand, as shown in Figure 5, the hinge shaft insertion hole (32c) is formed directly in the knuckle tip portion (11a, 11a '), the knuckle tip portion (11a, 11a') through the hinge axis through the cross member 30 The hinge connecting members 32 and 32 'may be directly rotatable, but since the knuckle tip portions 11a and 11a' are generally empty inside, as shown in FIG. 6, the knuckle tip portions 11a and 11a 'are rotated. The hinge connecting member 14 to the hinge connecting member 14, so that the knuckle tip portions 11a and 11a 'are indirectly connected to the hinge connecting members 32 and 32' of the cross member 30 via the hinge connecting member 14, respectively. It is preferable.

According to the present invention, since the knuckle tip portions 11a and 11a 'of the left and right suspensions 10 and 10' are individually hinged directly to the cross member 30, the assembly member and the assembly labor are greatly reduced, and the left and right sides are greatly reduced. Since the suspensions 10 and 10 'are installed independently of each other, even if an external force is applied in the lateral direction, the entire suspension 10 and 10' is not pushed in the direction opposite to the direction in which the external force is applied, thereby satisfying the required lateral rigidity. Can be obtained with confidence.

According to the present invention as described above, while the left and right suspensions are independently installed, the knuckle tips of these left and right suspensions are pivotally fixed to the crossmembers directly, so that the required lateral rigidity can be satisfactorily obtained. , The assembly member and the assembly labor is reduced, the productivity is improved.

Claims (3)

Knuckles 11 and 11 ', discs 12 and 12' rotatably fixed to knuckles 11 and 11 ', one end being connected to knuckles 11 and 11' while the other end is pivoted to the vehicle body Left and right sides of the vehicle comprising trail arms 13 and 13 'which are securely fixed, and dampers 21 and 22 with springs, one end being fixed to the knuckles 11 and 11' and the other being fixed to the vehicle body. In the separate rear suspensions 10 and 10 ', The knuckle tip portions 11a and 11a 'of the left and right suspensions 10 and 10' are rotatably fixed to the hinge connecting members 32 and 32 'provided in the cross member 30 via hinge shafts, respectively. Rear suspension of vehicle characterized by. The hinge connecting member 14 is provided at the knuckle tip portions 11a and 11a ', and the hinge connecting member 14 of the knuckle tip portions 11a and 11a' and the hinge of the cross member 30. A rear suspension of a vehicle, characterized in that the connecting members 32, 32 'are rotatably fixed via a hinge shaft. The hinge according to claim 1 or 2, wherein the hinge connecting members (32, 32 ') of the cross member (30) are provided at the knuckle tip portions (11a, 11a') or the knuckle tip portions (11a, 11a '). A seating portion 32b in which the connecting member 14 is rotatably seated, a hinge shaft insertion hole 32c in which the hinge shaft is inserted, and a filler seating groove in which the filler 32d is filled are formed, and thus the cross member 30 is formed. Main body 32a fixed by welding); A rear suspension of a vehicle, characterized in that it is made of a filling material (32d) is inserted into the filler mounting groove of the main body (32a).