JPH0226725Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stabilizer mainly used for cushioning in automobiles.

Conventionally, this type of stabilizer was made using a long, solid bar-shaped steel material to maintain strength.
In this case, the strength is maintained, but the weight increases, which poses a problem during transportation and processing.

Recently, in order to eliminate such problems, a technique has been proposed in which the stabilizer is made of hollow tubular steel material.

However, while the above-mentioned hollow stabilizer can reduce the weight, there is a risk of water ingress into the hollow part, and therefore, as disclosed in Japanese Patent Publication No. 57-33455, this type of stabilizer has separate parts at both ends. It has been proposed to seal the hollow portion by fitting a sealing member, but in such a configuration, since the sealing member is fitted to both ends of the stabilizer body, the accuracy of the sealing member may be limited. There are disadvantages in that the manufacturing process becomes complicated and that the sealing member is required, and there is also a disadvantage in that there is a risk that the sealing member may fall off.

For this purpose, it was considered to flatten the end of the hollow stabilizer and thereby seal the inside of the stabilizer, but with such a configuration, a complete sealing effect could not be obtained due to the low surface pressure. According to experiments, after 72 hours of salt water spraying, water seepage from the flattened end was observed, and rust was observed in the hollow interior.

This proposal aims to provide a stabilizer that eliminates the disadvantages mentioned above.

The stabilizer of the present invention will be explained below with reference to the drawings. Fig. 1 is a perspective view of the stabilizer of the present invention. The stabilizer main body 1 is formed into a long tube shape from carbon steel or the like, and has a hollow portion S inside, and both ends 11 , 11 is the stabilizer main body 1
They are bent in directions toward each other so that they have a symmetrical shape when viewed from the front.

Both end portions 11, 11 are pressed flat, respectively, and a flat portion 1 in which opposing wall surfaces overlap each other.
2, 12, and the two end portions 11, 11 are configured as mounting portions.

Furthermore, as shown in FIG. 2, each of the end portions 11, 11 is provided with narrow crushed grooves 13, 1 which intersect perpendicularly to the axial direction of the stabilizer body 1.
3 is provided so as to crush and seal the flat portions 12, 12, and by forming these crush grooves 13, 13, the flat portions 12, 12 of the above-mentioned both end portions 11,
12 and their opposing wall surfaces are brought into close contact with each other to seal the hollow portion S.

At least one crushed groove 13 is provided so as to traverse the entire surface of the flat portion 12, and therefore, as shown in FIG. 2A, both side edges of the flat portion 12 are also crushed.

The crushed grooves 13, 13 can be easily formed by cold or hot caulking.

Furthermore, the crushed grooves 13, 13 may be provided at one location facing each other on each of the front and back surfaces of the flat portions 12, 12, as shown in FIG. 2, or alternatively, as shown in FIG. As shown, the flat portions 12, 12 may be provided at two opposing positions on both the front and back surfaces of the flat portions 12, 12, or
As shown in FIG. 4, they may be provided alternately on both the front and back surfaces of the flat portions 12, 12.

The stabilizer main body 1 has both ends 11, 11 as shown in FIG.
There is a model that has a through hole 14 for mounting.
In this case, the crushed grooves 13, 13 are placed at a position where the hollow portion S is sealed, as shown in FIG. It is sufficient to set it at an intermediate position.

Since the stabilizer of this invention has the above configuration, the following effects can be expected.

The above-mentioned crushed groove 13 is connected to both ends 1 of the stabilizer.
By providing the flat parts 12, 12 formed in the stabilizer body 1, the flat parts 12, 12 can be completely crushed and sealed, thereby effectively preventing moisture and water from entering the hollow part S of the stabilizer main body 1. Therefore, it is possible to prevent rust from forming in the hollow portion S of the stabilizer body 1.

That is, in the stabilizer of the present invention, the flat part 1
2 is partially crushed to form the grooves 13, the surface pressure at the crushed grooves 13 is high. The sealing effect was extremely good, and experiments showed that even after 100 hours of salt water spray, no water leaked into the interior.

Since the crushed grooves 13 can be formed at the same time during the manufacturing process of the stabilizer body 1, a separate sealing member is not required, and therefore it is possible to manufacture the stabilizer in large quantities and at low cost compared to conventional stabilizers.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the stabilizer of the present invention, Fig. 2 is a partial view showing the end of the above stabilizer, in which A is a front view, B is a sectional view, and Figs. 3 to 5 are other embodiments of the above stabilizer. FIG. 4 is a cross-sectional view of an end portion showing an example. In the figure, 1 is the stabilizer body, 11 is the end, 1
2 is a flat portion, 13 is a crushed groove, 14 is a through hole for attachment, and S is a hollow portion.

Claims (1)

[Scope of utility model registration request] Both ends of the hollow stabilizer main body are pressed to form a flat part, and the flat part has at least one crushed groove extending perpendicularly to the axial direction of the stabilizer main body. A stabilizer installed across the entire surface of the flat part.