JP4013285B2 - Stabilizer mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stabilizer mounting structure, and more particularly to a stabilizer mounting structure in which a stabilizer is disposed in the vicinity of a leading arm.
[0002]
[Prior art]
Conventionally, there are four-wheeled vehicles that employ a three-link suspension composed of left and right leading arms and lateral rods on the front suspension.
In such a vehicle, the end portion of the arm portion 1a of the stabilizer 1 is supported by the suspension-type axle housing 2, and the torsion portion 1b of the stabilizer is supported by the cross member 4 via the brackets 3 and 3. (See FIGS. 9 and 10).
In the figure, 5 is a leading arm, 6 is a propeller shaft, 7 is a tie rod, 8 is a drag rod, 9 is a lateral rod, 10 is a differential gear carrier, and 11 is a front wheel.
[0003]
[Problems to be solved by the invention]
By the way, in the conventional stabilizer mounting structure, there are a steering system drag rod 8 and a tie rod 7 around the suspension system, and in the case of a suspension system having driving wheels, there are a differential gear carrier 10 and a propeller shaft 6. It was. For this reason, the stabilizer 1 needs to be laid out while maintaining a sufficient clearance with these components, and has a large and complicated bent shape.
Further, when the stabilizer 1 is supported on the vehicle body side, a structure that can withstand the force generated by the operation of the stabilizer is required. Therefore, it is necessary to provide the stabilizer support bracket 3 at a position as close as possible to the strength member such as the cross member 4. was there. However, the portion to which the bracket 3 is fixed increases in rigidity and affects the deformation of the vehicle body when subjected to an impact, so that the degree of freedom in arranging the bracket is small. Due to these points, the shape of the stabilizer 1 is complicated.
Furthermore, in the conventional stabilizer attachment structure, the stabilizer 1, with the suspension of the operation is restricted by three links, the deviation of the operation between them occurs, the cross member 4 the stabilizer 1 via the link stabilizer To absorb the above deviation.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a stabilizer mounting structure that has a simple shape, a high degree of freedom in layout, and can be realized at low cost.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, a stabilizer is provided in the vicinity of the leading arm in the front suspension , and the stabilizer is mounted only on the leading arm, and the stabilizer is attached to the inner surface of the leading arm. an arm portion extending along, and substantially U-shaped in a torsion portion, along the inner surface of the leading arm so that the torsion portion becomes front wheel side is disposed the arm portion to the leading arm, the arm part The support portion near the torsion portion is supported by a mount rubber on the inner side surface of the leading arm so that the axial direction of the arm portion is elastically supported, and the support portion at the tip portion of the arm portion It is the leading arm by axial vertical bolt of the arm portion While supported by the side surface, the torsion portion, together are disposed along the tie rod extending between the left and right front wheels, it is disposed below the tie rod.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a stabilizer mounting structure according to the present invention will be described below in detail with reference to the accompanying drawings.
1 to 8 show an embodiment of a stabilizer mounting structure according to the present invention.
In the stabilizer mounting structure of the present embodiment, the arm portion 20a of the stabilizer 20 is placed along the inner side surfaces of the left and right leading arms 21 and 21 of the three-link suspension, and the torsion portion 20b is disposed below the tie rod 22. (See FIGS. 1 and 2).
[0006]
That is, the arm portions 20a and 20a of the stabilizer 20 are supported on the inner surface of the leading arms 21 and 21 at two points of the support portions 23 and 24, respectively.
The support portion 23 supports a portion near the torsion portion 20b of the arm portion 20a on the front portion of the inner side surface of the leading arm 21 via the mount rubber 25 and the bracket 26 (see FIGS. 3 and 4). Here, the arm portion 20 a of the stabilizer 20 is passed through the mount rubber 25, and the mount rubber is fixed to the front portion of the inner side surface of the leading arm 21 using the bracket 26. As a result, the portion of the stabilizer 20 near the torsion portion 20b of the arm portion 20a is elastically supported by the leading arm (see FIGS. 3 and 4).
[0007]
The support portion 24 rotatably supports the distal end portion of the arm portion 20a of the stabilizer 20 on the rear portion of the inner side surface of the leading arm 21 via the bolt / nut means 27 and the bush 28 (FIGS. 5 and 5). 6). Here, the bush 28 is rotatably supported on the rear portion of the inner side surface of the leading arm 21 via the bolt and nut means 27. The support portion 24 has a hole 29 formed at the tip of the arm portion 20a of the stabilizer 20, and a built-up portion 30 is formed on the inner side surface of the leading arm 21. You may comprise so that it may be rotatably supported by the leading arm (refer FIG. 7 and FIG. 8).
In FIGS. 1 and 2, 32 is a propeller shaft, 33 is a drag rod, 34 is a lateral rod, 35 is a differential gear carrier, 36 is a front wheel, and 37 is an axle housing.
[0008]
In the present embodiment, the stabilizer 20 is disposed along the leading arm 21 and the tie rod 22, so that peripheral components (ie, the tie rod 22, the differential gear carrier 30, the front wheel 36, which operate in a complex manner by the vertical movement and steering of the suspension) Etc.) and can be disposed with a sufficient clearance from surrounding parts. For this reason, both the arm portions 20a and 20a and the torsion portion 20b of the stabilizer 20 can be substantially linear, and have a simple shape. Therefore, the stabilizer 20 is easy to be molded and is compact, and its cost merit is great. In addition, since it is not necessary to provide a vehicle body side bracket for supporting the stabilizer 20 on the cross member as in the prior art, the durability of the vehicle body against an impact is not deteriorated.
[0009]
Further, in this embodiment, the stabilizer 20 is supported only by the leading arm 21, so that there is no positional displacement during operation with respect to the conventional suspension, and the conventionally used stabilizer link becomes unnecessary. . Moreover, since the positions of the support portions 23 and 24 of the stabilizer 20 can be freely determined along the leading arm 21, the spring constant of the stabilizer can be arbitrarily selected by shifting the position. Therefore, the optimum spring constant of the stabilizer 20 can be easily set, and the stress generated in the stabilizer 20 during use can be controlled in the same manner, so that it is possible to design the stabilizer 20 with high efficiency and low cost. .
Furthermore, in this embodiment, by making the interval between the support portions 23 and 24 of the stabilizer 20 longer, it is possible to satisfactorily absorb the lateral displacement and twist of the stabilizer.
[0010]
【The invention's effect】
As described above, according to the stabilizer mounting structure according to the present invention, the stabilizer is disposed in the vicinity of the leading arm in the front suspension and is supported only by the leading arm, and the stabilizer is supported by the leading arm. an arm portion extending along the inner surface of the arm, between the torsion portion and a substantially U-shaped, arranged the arm portion along the inner surface of the leading arm so that the torsion portion becomes front wheel side to the leading-arm The support portion of the arm portion close to the torsion portion is supported by a mount rubber on the inner side surface of the leading arm so that the axial vertical direction of the arm portion is elastically supported. The leading end support is supported by the leading bolts in the direction perpendicular to the axis of the arm. While supported by the inner surface of the over arm, the torsion portion, together are disposed along the tie rod extending between the left and right front wheels, because it is disposed below the tie rod, complex It can be a compact, simple-shaped stabilizer without bending, enabling efficient layout and forming the stabilizer at a low cost, while maintaining good lateral displacement and twisting of the stabilizer. can be absorbed to, be disposed in front-wheel-side torsion unit in the stabilizer which is supported by the leading arm, it is possible to perform the mounting of the stabilizer to follow without hindrance to the movement of the front suspension. Moreover, according to the present invention, there is no positional displacement during operation with the front suspension as in the prior art, so that the stabilizer link used conventionally is not required and the cost is low.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a stabilizer mounting structure according to the present invention.
FIG. 2 is a side view conceptually showing an embodiment of a stabilizer mounting structure according to the present invention.
FIG. 3 is a plan view showing one support portion of the arm portion of the stabilizer in one embodiment of the stabilizer mounting structure according to the present invention.
FIG. 4 is a cross-sectional view showing one support portion of the arm portion of the stabilizer in one embodiment of the stabilizer mounting structure according to the present invention.
FIG. 5 is a plan view showing the other support portion of the arm portion of the stabilizer in one embodiment of the stabilizer mounting structure according to the present invention.
FIG. 6 is a cross-sectional view showing the other support portion of the arm portion of the stabilizer in one embodiment of the stabilizer mounting structure according to the present invention.
FIG. 7 is a partial cross-sectional view showing another example of the other support portion of the arm portion of the stabilizer in one embodiment of the stabilizer mounting structure according to the present invention.
FIG. 8 is a plan view showing a main part of another example of the other support portion of the arm portion of the stabilizer in one embodiment of the stabilizer mounting structure according to the present invention.
FIG. 9 is a plan view showing a conventional stabilizer mounting structure.
FIG. 10 is a side view conceptually showing a conventional stabilizer mounting structure.

Claims (1)

In a stabilizer mounting structure in which a stabilizer is disposed near the leading arm in the front suspension and supported only by the leading arm. and Jo, along the inner surface of the leading arm so that the torsion portion becomes front wheel side is disposed the arm portion to the leading arm, the support portions of the torsion portion near the arm portion, the leading The arm rubber is supported on the inner surface of the arm by a mounting rubber so that the axial direction of the arm part is elastically supported, and the support part at the tip of the arm part is supported by a bolt in the axial direction of the arm part. while supported by the inner surface of the leading arm, the Toshi Down section, the stabilizer attachment structure with which is disposed along the tie rod extending between the left and right front wheels, characterized in that disposed below the said tie rod.

Images