JPS5845925Y2 - hollow stabilizer for automobile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hollow stabilizer for automobiles with an improved tip joint.

An automobile stabilizer includes an intermediate portion extending laterally and attached to the vehicle body, and leg portions connected to the intermediate portion via a curved portion and having distal ends connected to the wheel side.

And, for a hollow starizer in which the intermediate acoustic curved portion and the leg portion are integrally formed from a tubular material,
A flat connecting portion is formed by pressing the tips of the legs in the diametrical direction, and a through hole is formed in the connecting portion through which a connecting rod erected on the wheel side is inserted. There is.

When the leg portion and the connecting rod are connected to each other, conventionally, rubber shock absorbers are immovably provided on both sides of the flat connecting portion through metal bowl-shaped washers, and these washers and The connecting rod was inserted into a through hole formed in each central portion of the shock absorber, and the connecting rod was configured to tighten the connecting portion via the shock absorber and the washer.

Therefore, the number of parts was large, and the assembly work required a lot of effort.

Therefore, it is conceivable to attach the shock absorber directly without using the washer, but in this case, there is a problem that the shock absorber is likely to move, causing damage to the shock absorber and the connecting rod.

In order to stop the shock absorber from moving, it is conceivable to integrally form a countersink-shaped recess in the connection part and fit the buffer member into this recess, but it is possible to prevent the shock absorber from moving. When it is necessary to press-form a part of the material using a press mold, etc., it is difficult to form the recessed part in an accurate shape that follows the outline of the press mold because the part to be press-formed is hollow. Therefore, there is a risk that the buffer member may not bud or not fit properly, or the buffer member may move unnecessarily within the recess, causing damage to the buffer member or the connecting rod.

The present invention was developed based on the above circumstances, and its purpose is to eliminate the need for washers and reduce the number of parts by forming a countersink-like recess in the flat end connecting part, and to An object of the present invention is to provide a hollow stabilizer for an automobile in which the countersink-like recess can be molded into an accurate shape and the vicinity of the through hole can be reinforced.

Hereinafter, the present invention will be described with reference to an illustrated embodiment.

Intermediate portion 1 extending laterally in FIGS. 1 to 3
and a leg portion 3 connected to this intermediate portion 1 via a curved portion 2.
is integrally formed from tubular material.

The leg portion 3 is provided with a connecting portion 4 formed by pressing the tip of a tubular material forming the leg portion into a flat shape.

A through hole 5 that penetrates the tubular material in the diametrical direction is cut in the connecting portion 4, and countersink-shaped recesses 6 are provided on the periphery of the through hole 5 on both sides of the connecting portion 4. It is formed.

When forming the connecting portion 4, an appropriate metal rod is inserted in advance into the tip of the tubular material forming the leg portion 3, and integrally press-molded from the outside. A reinforcing member 11 is formed inside the connecting portion 4.

When using the device configured as described above, the intermediate portion 1 is attached to the vehicle body side of the automobile, and the connecting portion 4 is connected to the wheel side.

When connecting the connecting part 4 to the wheel side, as illustrated in FIG. The connecting portion 4 is held between the washer 8 arranged at each other end of the body 7, and the through hole 5 of the connecting portion 4, the buffer body 7, and the washer 8 are provided upright on the wheel side of the vehicle. Connecting rod 9 such as a bolt that is commonly inserted into each through hole
As a result, the connecting portion 4 is tightened in the axial direction via the buffer body 7 and washer 8.

That is, since the concave portion 6 into which each end of the buffer body 7 is fitted is formed in the connecting portion 4, the buffer body 7 can be inserted into the connecting portion 4 as in the conventional device.
There is no need to provide a washer between the connecting portion 4 and the connecting portion 4.

Therefore, the number of parts is small and the number of man-hours required for assembly is reduced.

Moreover, according to the above stabilizer, since the solid reinforcing member 11 is present inside the connecting portion 4, when compression molding is performed using a press mold or the like, since this pressing portion is solid, the reinforcing member 11 is solid. The countersunk recess 6 can be formed in an accurate shape along the outer shape of the mold.

Accordingly, it is possible to obtain an accurate recess 6 into which the buffer 7 just fits, and it is possible to prevent the buffer 7 from moving unnecessarily within the recess 6.

Therefore, this is very effective in preventing damage to the buffer body 7 and the connecting rod 9.

Moreover, the reinforcing member 1 is integrally pressed and molded within the connecting portion 4.
1 can reinforce the vicinity of the through hole 5 and is also effective in increasing the strength of the connecting portion 4.

In the present invention, as described above, a countersink-shaped recess is formed at the periphery of the through hole formed in the end connecting part of the leg that is press-formed into a flat shape. It is possible to prevent the shock absorber from moving without using a washer, thereby reducing the number of parts and the number of man-hours required for assembly.

Furthermore, since a reinforcing member made of a rod is inserted in advance into the tip of the tubular material forming the legs, and this portion is compressed into a flat shape, the tubular material can be used as the material for the stabilizer. It is possible to form a countersink-like recess in an accurate shape along the outer shape of the press mold etc. when press molding, and the reinforcement member can reinforce the vicinity of the through hole, which is a great effect in hollow stabilizers. be able to.

[Brief explanation of drawings]

Fig. 1 is a top view showing an embodiment of the present invention, Fig. 2 is a top view showing an enlarged view of the main parts on the same side, and Fig. 3 is a top view showing the main parts of the same side.
It is a cross-sectional view along the line. 1... Middle part, 2... Curved part, 3... Leg part, 4...
... Connecting paper 5... Through hole, 6... Recess, 9... Connecting rod, 11... Reinforcement member.

Claims (1)

[Scope of utility model registration request] It is integrally formed from a tubular material and has an intermediate part to be attached to the vehicle body side of the automobile, and leg parts connected to the intermediate part via a curved part, and is formed at a connecting part at the tip of the leg part. In the hollow stabilizer for an automobile having a diametrical through hole, a reinforcing member made of a rod is inserted into the tip of the tubular material forming the leg, and this portion is press-molded into a flat shape to form the connecting portion. A hollow stabilizer for an automobile, characterized in that a countersink-like recess is formed at a peripheral edge of the through hole.