JPS6140581Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a stabilizer used in automobiles.

Generally, this type of stabilizer consists of a stabilizer bar made of spring steel, medium carbon steel, etc. in a substantially U-shape.
The stabilizer bar is disposed laterally on the chassis side of the vehicle and is rotatably supported on the chassis side at both ends, and the arm end of the stabilizer bar is attached to the axle side of the vehicle. Vehicles have been designed to reduce rolling of the vehicle body while driving and improve driving stability.

In recent years, there has been a tendency for such stabilizer bars to be formed in a hollow shape due to the reduction in weight of automobiles.

Therefore, normally, when the arm end of the hollow stabilizer bar is attached to the axle side of a vehicle, the arm end is crushed and the crushed arm end is connected to the axle side.

However, the hollow stabilizer bar
The outer diameter is thin, like those used in passenger cars.
In addition, even if the wall thickness is relatively thin, if the outer diameter is large and the wall thickness is relatively thick, such as those used for trucks, it is difficult to crush the end of the arm by press working. It was hot.

The object of this invention is to provide a stabilizer for use in automobiles which can easily and securely connect the arm end of the stabilizer bar to the axle of the automobile with sufficient strength, thereby reducing the rolling of the body while the automobile is moving and improving the running stability.

To solve these problems, the stabilizer used in the automobile of this invention consists of a hollow stabilizer bar placed laterally on the chassis side of the automobile, in which the clevis consists of a boss part and a clamping plate part, The feature is that the boss portion is fixed to the arm end of the hollow stabilizer bar.

Hereinafter, preferred specific examples of the stabilizer used in an automobile according to this invention will be described with reference to the drawings.

Figures 1 and 2 show a specific example of a stabilizer used in an automobile of this invention applied to a truck.
Showing 10.

The stabilizer 10 consists of a hollow stabilizer bar 11 disposed laterally below the chassis 20 at a position forward of the front suspension of the truck, with a clevis 13 connected to a boss 14 and to the boss 14. It consists of a pair of integrally formed clamping plate parts 15 and 16, and its boss part 14 is fitted into and fixed to the end of the arm 12 of the hollow stabilizer bar 11.

The hollow stabilizer bar 11 is made of a carbon steel tube for machine structural use, and is bent into a substantially U-shape with a predetermined curvature so as to integrally form arms 12 at both ends.

The central portion of the hollow stabilizer bar 11 acts as a so-called torsion bar,
It is twisted according to the relative displacement of the ends of each arm 12, and the torsion torque generated by the displacement of one end of one arm 12 is transmitted to the other arm.

Of course, the outer and inner diameters of the hollow stabilizer bar 11, the central portion of the hollow stabilizer bar 11, and the effective length of the arms 12 are determined according to the vehicle weight of the truck.

Further, a padding 28 is arranged inside the bent portion of the hollow stabilizer bar 11. The filling 28 is the hollow stabilizer.
Considering the weight reduction of the bar 11, a relatively light one,
For example, it is desirable to use a hollow disposable pipe. Of course, the stuffing 28 is applied to the hollow stabilizer bar 11 in advance before the hollow stabilizer bar 11 is bent as described above.
When the hollow stabilizer bar 11 is bent with a predetermined curvature, the padding 28 is bent in substantially the same way.

The clevis 13 is made of metal, for example cast iron, and the arm 1 of the hollow stabilizer bar 11
A boss portion 14 formed into a columnar shape with an outer diameter that can be fitted into the two ends, and a pair of clamping plate portions 15 and 16 integrally formed on both sides of the boss portion 14.
It is composed of.

Further, in the pair of clamping plate portions 15 and 16, pin holes 17 and
18 are formed respectively.

The clevis 13 thus configured has its boss portion 14 fitted into the end of the arm 12 of the hollow stabilizer bar 11, and further
It is fixed to the end of the arm 12 by deforming the end into a wave shape and caulking it.

A hollow stabilizer bar 11, whose clevis 13 is fixed to the end of the arm 12, is arranged laterally below the chassis 20 in a position in front of the leaf spring 24 as the front suspension of the truck.・Bar 11
is rotatably supported by the chassis 20 via brackets 26 at both ends of its central portion.

Of course, a rubber bushing (not shown) is located inside the bore in the bracket 26 that rotatably supports the hollow stabilizer bar 11.

Further, the clamping plate portions 15, 16 of the clevis 14 fixed to the ends of the arms 12 of the hollow stabilizer bar 11 are rotatably connected to the axle side of the truck, that is, to the leaf spring 24.

The leaf spring 24 is equipped with a connecting plate 25 fixed to the lowest stage of a plurality of stacked leaf springs via a pair of U bolts 27, and the front eye of the leaf spring 24 is attached to the chassis 20. A rear bracket is rotatably connected to a fixed front bracket 21, and the rear eyepiece portion is spaced apart from the front bracket 21 by a predetermined distance, and is fixed to the chassis 20. 22 via a shackle 23 so as to be rotatable.

Of course, the connecting plate 25 fixed to the leaf spring 24 has an eye-shaped portion at its tip.

Therefore, the hollow stabilizer bar 11 described above
The clamping plate portions 15 and 16 of the clevis 14 fixed to the end of the arm 12 are connected to the connecting plate 25.
The eye part is rotatably attached.

Next, we will discuss the running of a truck to which the stabilizer 10 described above is applied. First, while the truck is running, the load is kept balanced on the left and right sides of the vehicle body, and due to vibrations on the axle side, If the leaf springs 24 are deformed under substantially the same conditions, the hollow stabilizer bar 11 will be
It is rotated following the deformation of the leaf spring 24 without being substantially twisted.

Further, when the truck turns and rolling occurs in the vehicle body, the displacement amount of the left and right leaf springs 24 is different, so the center portion of the hollow stabilizer bar 11 is twisted.
Due to the restoring force of the central part, the left and right arms 12
is returned to almost the same position.

That is, the stabilizer 10 bent by fitting the waste pipe 28 reduces the rolling of the vehicle body when the truck is running, and the running stability is improved.

FIG. 3 shows another example 30 of the stabilizer used in the automobile of this invention.

The stabilizer 30 consists of a hollow stabilizer bar 31 disposed laterally below the chassis at a position forward of the front suspension of the truck, with a clevis 33 connected to a boss 34 and the boss 34. Consisting of a pair of integrally formed holding plate parts, the boss part 34
The hollow stabilizer bar 31 of the arm 32
Welded on the ends.

Since the hollow stabilizer bar 31 is configured similarly to the hollow stabilizer bar 11 in the above-described specific example, a description of its configuration will be omitted.

The clevis 33 is formed in a cylindrical shape so that the boss portion 34 overlaps the end surface of the arm 32 of the hollow stabilizer bar 31.
Since it is constructed in the same manner as the clevis 13 of the tenth embodiment described above, the clamping plate portions are designated by the same reference numerals 15 and 16 as the clamping plate portions of the tenth embodiment, and a description of their construction will be omitted.

The clevis 33 is welded to the end of the arm 32 of the hollow stabilizer bar 31, with the boss portion 34 overlapping the end surface of the arm 32 of the hollow stabilizer bar 31.

Of course, if friction welding is used as a means for fixing the clevis 33 to the end of the arm 32, the strength of the welded portion will be increased and the working time will be extremely shortened.

Since the method for attaching the stabilizer 30 configured in this manner to the truck is the same as in the case of the above-mentioned specific example 10, the explanation of that method will be omitted. Of course, the same effects as those described in 10 can be obtained.

According to this invention, in a stabilizer used in an automobile, which is composed of a hollow stabilizer bar placed laterally on the chassis side of the automobile,
Since the clevis consists of a boss part and a clamping plate part, and the boss part is fixed to the arm end of the hollow stabilizer bar, the arm end of the stabilizer bar can be attached to the axle of the vehicle without being crushed. It is easily and reliably connected to the side with sufficient strength, reduces rolling when the vehicle is running, improves running stability, and becomes extremely practical.

[Brief explanation of drawings]

Fig. 1 is a partial perspective view showing the installation state of the stabilizer used in the automobile of this invention applied to a truck, Fig. 2 is a partial cross-sectional view showing the state where a clevis is fixed to the arm end of the stabilizer shown in Fig. 1, and Fig. 3 is a partial cross-sectional view showing another embodiment of the stabilizer used in the automobile of this invention applied to a truck. 10, 30 ... stabilizer used in the automobile, 11, 31 ... hollow stabilizer bar, 1
2, 32...Arm, 13, 33...Clevis,
14, 34...boss portion, 15, 16...clamping plate portion, 20...chassis.

Claims (1)

[Scope of Claim for Utility Model Registration] In a hollow stabilizer bar arranged laterally on the chassis side of an automobile, the clevis consists of a boss part and a clamping plate part, and the boss part is connected to the hollow stabilizer bar. A stabilizer used in automobiles that is fixed to the end of the arm.