JPS5913139Y2 - Hollow stabilizer for automobiles - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an automobile stabilizer.

The stabilizer is composed of a base that is rotatably attached to the vehicle body and an arm that is integrally connected via a curved section.The end of the arm is attached to a wheel suspension part, and the base is equipped with a rubber bush or a rubber cushion. The base is attached to the vehicle body through an elastic body, and the base rotates about the axis of the base in response to the vertical movement of both left and right wheels, thereby supplementing the roll rigidity of the vehicle body.

In the above configuration, conventionally, solid round steel is used as the base material, and as shown in Fig. 1, the steel flange 2 is fixed to a predetermined position by means such as welding and a rubber bush is abutted, so that the so-called stopper function such as positioning guide etc. However, it requires heat treatment to remove welding strain and has the disadvantage that cracks often occur due to welding.

The present invention eliminates the above-mentioned conventional drawbacks, and furthermore, in response to the recent widespread use of hollow steel as the base material from the viewpoint of vehicle weight reduction and resource conservation, the present invention has a new stopper structure for the above-mentioned vehicle body anchoring elastic body. The purpose is to provide the following.

The following will be explained based on examples.

FIG. 2 shows one embodiment.

In the figure, an annular recess 4 whose diameter of the base material is reduced by external pressure processing is formed in a predetermined part of the base 1 according to the size of the elastic body to be fitted into the part, and then an elastic body 3 is inserted into the recess 4. It is characterized by being clamped and attached to the vehicle body in an elastic manner, and the cross-sectional shape of the recessed portion 4 is circular or rectangular as shown in Figs. It is a configuration that can be arbitrarily selected and applied in consideration of the difficulty of processing and the conditions of the elastic body 3.

Further, in the embodiment shown in FIG. 3, a convex annular bulge 5 is formed in the main part of the material of the base 1, and an elastic body 3 is inserted between the two annular bulges.
The cross-sectional shape perpendicular to the base axis of the annular bulge can be either circular or elliptical as shown in Figures 6 and 7, and can be selected and applied as above. In short, a bulge shape that satisfies the stopper function is sufficient.

The forming process in each of the above-mentioned Examples can be easily performed by forging plastic forming by utilizing the characteristics of hollow steel.

With the above structure, the elastic body 3 of the base 1 is provided with a stopper, and the hollow stabilizer can function smoothly against various external forces of the actual vehicle.

The stopper action of the annular recess 4 or the annular bulge 5 prevents the elastic body 3 from shifting laterally, and both end surfaces of the elastic body 3 meet the peripheral edges of the annular recess 4 or the annular bulge 5. Since they are always in elastic contact, the elastic body 3 and the base 1
This prevents foreign substances such as sand and mud from entering the contact area.

Therefore, there is a unique function and effect that prevents wear of the part, prevents breakage of the stabilizer, and stabilizes its performance.

As described above, the present invention completely eliminates the cracking defects in the conventional technology based on a configuration that is compatible with the characteristics of hollow steel, and also reduces the number of man-hours by omitting strain relief heat treatment, and at the same time improves the performance of hollow stabilizers. It has the effect of stably maintaining it, promoting its widespread use, and promoting weight reduction of automobiles and resource conservation.

[Brief explanation of drawings]

Figure 1: Plan view of conventional configuration, Figure 2: Plan view of the embodiment of the present invention, Figures 3 and 4: AA' sectional view thereof, Figure 5: Plan view of another embodiment, Figures 6 and 7. : Its BB' cross-sectional view. Explanation of the symbols: 1: (stabilizer) base, 2: flange, 3: elastic body, 4: annular concave portion, 5: annular bulge.

Claims (1)

[Scope of utility model registration request] At the base of the hollow stabilizer, an annular concave portion having a substantially circular or rectangular cross section, or an annular bulging portion having a generally circular or elliptical cross section is formed in the main part of the base material, and the annular concave portion or A hollow stabilizer characterized by a structure in which a vehicle body anchoring elastic body is elastically sandwiched between the annular bulges.