JPH04103424A - Stabilizer fitting structure - Google Patents

Abstract

PURPOSE:To dissolve a stabilizer reaction direction acting as force loosening bolts, by putting a stabilizer middle portion into a holding portion whose vertical section is of a horizontal U type, and then, fixing a plate at the opening portion of the holding portion. CONSTITUTION:A bracket 43 whose vertical section is of a horizontal U type, is fixed at the front FR side tip portion 31a of a front suspension member 31, and the middle portion of a stabilizer 13 is supported at the bracket 32 through a mount rubber 34. In this instance, a holding portion 32a whose opening portion is formed on the front FR side and whose vertical section is of an approximately horizontal U type, is provided at the bracket 32. And the middle portion of the stabilizer 13 is put in the holding portion 32a through the mount rubber 34. Also, a plate 36 is weldingly arranged at the opening portion 32b of the portion 32a, and in addition, screwed to the bracket 32 by means of bolts 38. As a result, the reaction of the stabilizer 13 is received by means of the portion 32a, and it is dissolved that reaction from the stabilizer 13 acts upon a direction loosening the bolts 38.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a structure for attaching a stabilizer to a suspension member or a vehicle body side member of a vehicle.

Conventional technology A normal automobile suspension is equipped with a stabilizer that connects the left and right suspension members to control the inclination of the vehicle body and prevent it from shaking.
Regarding the above, for example, Japanese Utility Model Application Publication No. 61-199409 discloses the configuration shown in FIGS. 6 and 7.

FIG. 6 is a side view showing the suspension on one side 9 of the vehicle, on the left side in the illustrated example, and 1 is a knuckle, and an axle 21 that rotatably supports a wheel (not shown) projects on the outer surface of the knuckle 1. A curved arm 3 extends upward from the upper end of the knuckle 1 on the rear RR side, and the curved arm 3 is pivotally connected to an upper arm (not shown).

Further, on the front FR side of the knuckle 1, bifurcated portions 5a and 5b, which are divided in the vertical direction, are projectingly provided. 7 is a trailing arm, and the rear R of this trailing arm 7 is
Bifurcated portions 7a and 7b protruding toward the R side are bolted to the bifurcated portions 5a and 5b on the knuckle 1 side. The trailing arm 7 is made of a leaf spring material that has high rigidity in the direction of the plate surface and sufficient elasticity in the direction of the thickness of the plate. One end 7C of the trailing arm 7 is pivotally connected to a member on the vehicle body side (not shown), and a connecting rod 9 is disposed inside the approximately intermediate portion of the trailing arm 7. The front (FR) side of the stabilizer 13 is pivotally connected by a ball joint 11 provided at the front.

The stabilizer 13 extends from the ball joint 11 in the rear RR direction, and is bent in the vehicle width direction at a bent portion 13a to form an intermediate portion 13b, with a mount rubber 15 interposed between the stabilizer 13 and the stabilizer 13. It is pivotally supported by the rear wall portion 17a of the subframe 17, and further extends to the suspension on the right side of the vehicle. This subframe 17 is
It constitutes the cross beam of the main frame (not shown).

Furthermore, on the rear RR side of knuckle 1, one end is attached to knuckle 1.
a lower arm 1 which is pivotally connected to the subframe 17 and whose other end extends in the vehicle width direction and is pivotally connected to the subframe 17;
9 are arranged. Further, a bracket 23 protruding from the lower part of the knuckle 1 is connected to the vehicle body via a hydraulic damper (not shown).

In this way, the knuckle 1 with the axle 21 protruding in the vehicle width direction has a curved arm 3. A subframe 17 to which a lower arm 19 is pivotally connected. It is supported by the vehicle body via a hydraulic damper connected to the trailing arm 7 and the bracket 23.

FIG. 7 is a sectional view showing details of a portion where the intermediate portion 13b of the stabilizer 13 is pivotally supported on the rear wall portion 17a of the subframe 17, and as shown in the figure, the intermediate portion 13b of the stabilizer 13 is
The mount rubber 15 that supports 3b has a cross-sectional shape of horizontal U.
It is supported by the rear wall portion 17a using a mold stay 25. This stay 25 includes a holding part 25a having a hemispherical cross section, and a mounting piece 25b formed at the lower end of this holding part 25a.
and a locking pawl 25C formed at the upper end of the holding portion 25a, and the mounting piece 25b is fixed to the rear wall portion 17a with a bolt 27 and a nut 29.

Further, a slide hole 17b is opened in the rear wall portion 17a of the sub-frame 17, into which the locking claw 25c can be inserted and removed. The vertical dimension B of this slide hole 17b is set to be larger than the vertical dimension A of the locking pawl 25c.

At the time of assembly, after interposing the mount rubber 15 on the intermediate part 13b of the stabilizer 13, the intermediate part 13b is fitted into the holding part 25a of the stay 25, and the locking claw 25c of the stay 25 is attached to the rear wall. The stay 25 is inserted into the slide hole 17b of the section 17a, and then the stay 25 is slid upward by applying the mounting piece 25b of the stay 25 to the surface of the rear wall section 17a.
c is locked to the upper edge of the slide hole 17b, and then the bolt 27 and nut 29 are used to fix the mounting piece 25b to the rear wall 17a.

According to the above mounting structure, the stay 25 and the lower arm 19
The stay 25 can be attached to the subframe 17 without interfering with the
It becomes possible to attach it to the rear wall portion 17a of the camera, and a narrow space can be used effectively.

Furthermore, instead of the above-described mounting structure, a bracket 32 is fixed to one end 30a of the suspension member 30 as shown in FIG.
A mounting structure is also known in which the mounting piece 25b of the stay 25 that covers the mount rubber 15 that supports the stabilizer 13 is fixed to the bracket 32 with bolts 28 as in the conventional example.

Problems to be Solved by the Invention However, in such a conventional stabilizer mounting structure, particularly in the structure shown in FIG. The reaction force direction F of the stabilizer 13 is a vertical direction, so to speak, the reaction force direction F of the stabilizer 13 is a sliding input to the wall surface of the rear wall portion 17a, and this sliding input acts as a force to loosen the bolt 27. To deal with this,
It is an essential requirement that the fastening force by the bolt 27 be extremely strong, and the bolt 27 itself must be increased in size, which leads to an increase in cost and weight. have.

Furthermore, due to the above-mentioned sliding input, the locking claw 2 of the stay 25
5c and the rear wall portion 17a of the sub-frame 17 may occur due to "rubbing" or rusting of the rear wall portion 17a due to wear during long-term use may cause the sub-frame 17 to rust.
The problem is that the lifespan of the device may be shortened.

On the other hand, in the case of the configuration shown in FIG. 8, the distance between the bracket 32 and the suspension member 30 is such that the tip of the bolt 28 that fixes the mounting piece 25b of the stay 25 to the bracket 32 does not interfere with the suspension member 30. This bolt 28
Bracket 32 with the above clearance added to the total length of
A thickness of X is required. Therefore, the input point from the stabilizer 13, the suspension member 30 and the bracket 3
Since the distance between the connecting portion and the bracket 32 becomes larger and a large moment is input to the bracket 32 with this connecting portion as the center of rotation, it is necessary to increase the cost and weight in order to strengthen the joint strength of the connecting portion. This has the problem of causing an increase.

Therefore, the present invention solves the problems that the conventional stabilizer mounting structure has and provides a stabilizer mounting structure that can reduce the weight without increasing the size of fastening bolts. The purpose is to

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention has adopted a method in which the intermediate portion of a stabilizer that connects the left and right suspensions of a vehicle is supported by a suspension member or a vehicle body side member by inserting a mount rubber. In the stabilizer mounting structure, a holding part having a horizontal U-shape in vertical section is formed at an appropriate position on the suspension member or the vehicle body side member, and after fitting the middle part of the stabilizer together with the mount rubber into the holding part, This is a stabilizer mounting structure in which a plate is fixed to the opening of the holding part.

According to this stabilizer mounting structure, even if the reaction force direction from the stabilizer is perpendicular to the suspension member or the vehicle body side member, that is, it is a slip input,
This sliding input is stopped by the horizontal U-shaped holding part, and in particular, the direction of the stabilizer's reaction force does not act as a force to loosen the bolt, making it possible to downsize the bolt itself, thereby reducing cost and weight. It is possible to reduce the

EXAMPLE Hereinafter, an example of a stabilizer mounting structure according to the present invention will be described in detail based on the drawings.

FIG. 1 is a plan view showing the main parts of a suspension to which a first embodiment of the present invention is applied, and FIG. 2 is a left side view as seen from the direction (■) in FIG. In this embodiment, a structure for attaching a stabilizer to a front suspension of an automobile is illustrated, but the stabilizer can also be supported by a vehicle body side member (not shown).

31 in the figure is a front suspension member having a figure 8 shape as a whole, and a reinforcement 33 installed in the vehicle width direction is in contact with the lower surface of the front PR side tip 31a of this front suspension member 31. This reinforcement 33 connects and supports the left and right image end portions 31a of the front suspension member 31.

A stabilizer support bracket 32 having a transverse U-shape in longitudinal section is fixed to the front FR side tip 31a of the front suspension member 31. A mount rubber 34 is inserted into the stabilizer support bracket 32, and a middle portion of the stabilizer 13 is mounted. is supported. 36 is a plate for preventing the mount rubber 34 from being removed, and this plate 36 is used for bolts 38, 38 and nuts 42, 42.
The stabilizer support bracket 32 is screwed into the opening portion of the stabilizer support bracket 32 using a screw. Note that details of the support structure and operation of the stabilizer 13 will be described later based on FIG. 3.

The stabilizer 13 has a bending portion 13a that allows the stabilizer 13 to
The stabilizer 13 is bent in the R direction, and a lower ball joint 40 disposed at the lower end of a connecting rod (not shown) is pivotally attached to the rear end 13e of the stabilizer 13. That is, the upper end of the connecting rod pivotally supported by the lower ball joint 40 is pivotally supported by an upper ball joint (not shown) and connected to the strut unit.

Reference numeral 35 designates a knuckle, and an axle 37 that rotatably supports a wheel (not shown) is protruded from the outer surface of the knuckle 35. 39 is a strut unit with a built-in hydraulic shock absorber, 41 is an engine mount bracket, 43 is a steering rack mount bracket, and 45 is a transverse link.
is swingably supported by the front suspension member 31 via an insulator 47. Furthermore, the transverse link 45 and the front suspension member 3
1, a tension rod 49 is arranged with a tension rod bush 51 interposed therebetween.

53 is a side member on the left side of the vehicle body, and a mount insulator 59 is fixed to the lower side of a rod 57 that is fixed to the upper side of the side member 35 by a fastener 55 and a metal fitting 56 and hangs down. An outer cylinder 61 fixed around the insulator 59 is fixed to the front suspension member 31.

Next, the mounting structure of the stabilizer 13 will be explained based on the enlarged sectional view of FIG.

That is, the front F of the front suspension member 31
The stabilizer support bracket 32 fixed to the R side tip 31a has a holding part 32a with an opening on the front FR side and a substantially horizontal U-shaped vertical section. The middle part of the stabilizer 13 is fitted with the mount rubber 34 inserted, and the plate 36 is closely arranged in the opening part 32b of the holding part 32H, so that the plate 3
6 is screwed onto the stabilizer support bracket 32 by bolts 38 and 38.

According to this configuration, the reaction force of the stabilizer 13 is received by the holding portion 32a of the stabilizer support bracket 32, so that as a result, the reaction force direction F from the stabilizer 13 is
38. Even if there is a sliding input in the direction 2 perpendicular to the tightening direction of 38, this reaction force is not directly applied to the plate 36. Therefore, since the reaction force from the stabilizer 13 does not act in the direction of loosening the bolt 38, the bolt 38
The fastening force of the bolt 38 itself is not required to be extremely strong, so the bolt 38 can be downsized, and the overall weight and cost can be reduced accordingly.

Furthermore, in this embodiment, while it is possible to increase the thickness b of the stabilizer support bracket 32 in the longitudinal direction, the dimension a from the center point P of the stabilizer 13 to the tip end 3 ], a of the front suspension member 31 On the contrary, it is possible to make the front suspension member 31 and the stabilizer support bracket 3 smaller.
Since the moment input to the joint with the stabilizer support bracket 32 and the front suspension member 31 is reduced, the strength of the joint between the stabilizer support bracket 32 and the front suspension member 31 is not required to be as high.
Cost and weight reductions can be achieved.

Further, by reducing the above-mentioned dimension a, the layout of this embodiment allows the overall length of the stabilizer 13 itself to be shortened, which has the advantage of increasing the operational efficiency of the stabilizer 13 and reducing its weight.

FIG. 4 shows a second embodiment of the present invention. In this embodiment, a plate 71 is fixed to the upper part of the stabilizer support bracket 32, and this plate 71 is bolted to the lower surface 31b of the front suspension member 31. 73.73
It is fixed using. The mounting structure of the intermediate portion of the stabilizer 13 to the stabilizer support bracket 32 is the same as the structure shown in FIG. 3, and is indicated by the same reference numerals.

According to this second embodiment, the center point P of the stabilizer 13
is close to the center point of the stabilizer support bracket 32, and as in the first embodiment, the reaction force from the stabilizer 13 does not act as a force to loosen the bolt 38, so the fastening force of the bolt 38, 38 itself is strong. However, the bolt 38 can be made smaller and the weight and cost can be reduced accordingly. Furthermore, the balance of the input to the stabilizer support bracket 32 is improved,
Stress on the fixing portion of the front suspension member 3 can be alleviated.

FIG. 5 shows a third embodiment of the present invention, and in the case of this embodiment, a holding portion 17C having a horizontal U-shaped cross section is formed near the upper end of the subframe 17 as shown in the figure. After fitting the mount rubber 15 that supports the stabilizer 13 into the holding part 17c, the plate 36 is tightly attached to the opening of the holding part 17c, and the plate 36 is attached to the holding part 17.
It is fixed to the subframe 17 using bolts 77 and nuts 79 on the lower side of c. A locking claw 36c is formed at the upper end of the plate 36, and a slide hole 1 in the subframe 17 allows the locking claw 36c to be inserted into and removed from the slide hole 1.
7b is open. The vertical dimension C of this slide hole 17b is set to be larger than the vertical dimension of the locking pawl 36c.

When assembling the third embodiment, after inserting the mount rubber 15 into the stabilizer 13 and fitting it into the holding part 17c of the subframe 17, the locking claw 36c of the plate 36 is inserted into the slide hole of the subframe 17. 17b, and slide the plate 36 upward against the surface of the subframe 17 until the locking pawl 36c is locked in the upper part of the slide hole 17b of the subframe 17, and then the bolt 77 is inserted into the subframe 17.
and nuts 79 to attach the plate 36 to the subframe 1.
Fixed at 7.

According to this third embodiment, the locking claw 36c of the plate 36
Since the first. As in the second embodiment, the vertical reaction force from the stabilizer 13 is applied to the plate 3.
6, the bolts 77 and nuts 79 can be made smaller and lighter in weight, and the generation of noise and rust at the contact area between the locking pawl 36C and the subframe 17 can be prevented. .

Therefore, according to each of the above embodiments, even when applied to a part such as a front suspension where the reaction force applied to the stabilizer is particularly large, the bolts for fixing the plate to the opening of the holding part can be made smaller and It is possible to reduce the weight.

Effects of the Invention As explained in detail above, according to the present invention, even if the direction of the reaction force from the stabilizer is perpendicular to the suspension member or the vehicle body side member, this input is stopped by the holding portion and is applied to the plate. without being affected by
In particular, since the reaction force from the stabilizer does not act in the direction of loosening the bolt, it is possible to downsize the bolt itself, thereby reducing cost and weight.

[Brief explanation of the drawing]

Figure 1 shows the first stabilizer mounting structure to which the present invention is applied.
2 is a side view of the main part of the embodiment, FIG. 2 is a side view of the main part of FIG. 1, FIG. 3 is an enlarged sectional view of the main part of FIG. 5th enlarged cross-sectional view of main parts showing
The figure is an enlarged sectional view of the main part showing the third embodiment of the present invention, Fig. 6 is a side view showing an example of a conventional suspension, Fig. 7 is an enlarged sectional view of the main part, and Fig. 8 is a conventional stabilizer installation. FIG. 7 is an enlarged view of main parts showing another example of the structure. 13... Stabilizer, 17... Subframe, 1
7b...Slide hole, 17c...Holding part, 31...
-Front suspension member, 32... Stabilizer support bracket, 32a... Holding part, 32b...
・Opening part, 34... Mount rubber, 35... Knuckle, 36... Plate, 36c... Locking claw, 4
0...Ball joint, 53...Side member. Figure 3

Claims (1)

[Claims] (1) In a stabilizer mounting structure in which the middle part of the stabilizer that connects the left and right suspensions of the vehicle is supported on the suspension member or the vehicle body side member by inserting a mount rubber, the appropriate position of the suspension member or the vehicle body side member is provided. The present invention is characterized in that a holding part having a substantially horizontal U-shape in longitudinal section is formed, and after the middle part of the stabilizer is fitted together with the mount rubber into this holding part, the plate is fixed to the opening of the holding part. Mounting structure of the stabilizer.