JPS61262242A - Damping rubber - Google Patents

Abstract

PURPOSE:To facilitate a mounting work by the method wherein a through-hole in the rodform part of dumping rubber used for the suspension of a car is formed in a natural shape having an opening communicated to the outside, and after it is engaged with the rodform part, the opening is firmly adhered thereto. CONSTITUTION:Damping rubber 22 providing at its interior with a through-hole 24 is formed about in a V-shape, and extension pieces 26 and 28 are extended from the forward end of the V-shape in a direction in which the extension pieces approache each other. A space between the extension pieces 26 and 28 forms an opening 30 through which the through-hole 24 is connected to the outside. A work to mount the damping rubber 22 to a stabilizer rod 12 is effected such that the extension pieces 26 and 28 are slightly deformed in a direction, in which the opening 30 is expanded, by pressing the opening 30 against the stabilizer rod 12, and the stabilizer rod 12 is easily contained in the through-hole 24. After mounting of the damping rubber to the stabilizer rod 12, the extension pieces 26 and 28 are firmly adhered to each other to bring the inner periphery of the through-hole 24 against the outer periphery of the stabilizer 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a vibration isolating rubber for absorbing vibrations, and more particularly to a vibration isolating rubber that is most suitable for a vehicle suspension.

[Foreground technology and issues to be solved] A stabilizer bush used in an automobile suspension is attached to the outer periphery of a stabilizer rod and held in a holding case.

As shown in FIG. 4, the vibration isolating rubber 10 has a circular hole 14 through which the stabilizer rod 12 passes, and is housed in a case 18 fixed to a vehicle body 16.

When attaching this vibration isolating rubber lO to the stabilizer rod 12, the vibration isolating rubber lO is molded with a circular hole 14 formed in advance, a notch 20 passing through the circular hole 14 to the outside is formed, and this notch 20 portion is formed. Then, spread the anti-vibration rubber 10 into a U-shape as shown by the imaginary line in FIG.
The stabilizer rod 12 is received into the circular hole 14 through the zero portion. After storage, the notches 20 are brought into close contact again to restore the molded state, and the case 18 is attached to the outer periphery and fixed to the vehicle body 16.

In this way, with conventional anti-vibration rubber, it is necessary to divide a part of the anti-vibration rubber 10 by forming a notch in a part of the anti-vibration rubber 10 that has been molded. It is necessary to widen the section and pass it through the stabilizer rod.

The present invention has been made in consideration of the above-mentioned facts, and an object of the present invention is to obtain a vibration isolating rubber that is easy to manufacture and easy to assemble.

[Summary and operation of the invention] The vibration isolating rubber according to the present invention is molded in a natural shape with an opening that communicates the through hole of a rod-shaped part such as a stabilizer rod with the outside, and the opening is closed after being fitted into the rod-shaped part. They are in close contact and surround the rod-shaped portion.

Therefore, in the present invention, there is no need to make a cut after molding, and since an opening is provided in advance, the attachment work to the rod-shaped part is facilitated.

[Embodiment of the Invention] FIG. 1 shows a vibration isolating rubber 22 of this embodiment. This anti-vibration rubber 22 has a substantially V-shape with a through hole 24 inside, and extension pieces 26 and 28 are formed from the tip of the V-shape in a direction toward each other. These extension pieces 26
．． 28 are arranged at a predetermined distance apart, and an opening 30 is formed between them to communicate the through hole 24 with the outside.

A protrusion 32 that increases the outer circumference is formed at both axial ends of the vibration isolating rubber 22. By being accommodated in the groove 36 of the U-shaped case 34, the protrusion 32
Axial movement relative to 4 is prevented.

The vibration-proof rubber 22 can be integrally manufactured by molding a rubber material, a synthetic resin material, or the like.

During use, since the opening 3o communicates the through hole 24 with the outside, there is no need to provide a cut to communicate the through hole 24 with the outside as in the conventional case.

In addition, the installation work to the stabilizer rod 12 is performed by attaching the opening 3 to the stabilizer rod 12.
0 onto the stabilizer rod 12, the extension piece 26
．． 28 is slightly deformed in the direction of enlarging the opening 3o, and the stabilizer rod 12 is easily accommodated in the through hole 24. In order to facilitate this insertion, the opening 3o is shaped so that its width increases as it moves away from the through hole 24.

After installation on the stabilizer rod 12, the extension piece 26.2
8 are brought into close contact with each other, and the inner periphery of the through hole 24 is brought into contact with the outer periphery of the stabilizer rod 12.

In order to ensure that the inner periphery of the through hole 24 is in close contact with the outer periphery of the stabilizer rod 12 when the opening 30 is in close contact with the opening 30, the shape of the through hole 24 at the time of molding is different from the perfect circle that is the outer diameter of the stabilizer rod 12. It can also be arcuate.

At this point, the case 34 is attached to the outer periphery of the vibration isolating rubber 22, and the case 34 is attached to the vehicle body 16 by tightening means such as bolts to complete the assembly.

The diameter of the opening 30 is large enough to allow the vibration isolating rubber 22 to be easily attached to the stabilizer rod 12;
The size may be sufficient as long as it can be in close contact with the vibration-proof rubber 22 when it is tightened.

Facing this opening 30, as shown in FIG. 5, a semicircular notch 40 may be provided in the extension piece 26, 28 so that the opening 30 partially fits tightly.

Note that the outer diameter shape of the vibration isolating rubber 22 and the shape of attachment to the case 34 can be arbitrarily changed as necessary.

[Effects of the Invention] As explained above, the vibration isolating rubber according to the present invention has a natural shape with an opening that communicates one through hole with the outside, and after being fitted into the rod-shaped part, the opening is tightly attached to the rod-shaped part. Since the structure is such that it surrounds, it is easy to manufacture and has an excellent effect that it is easy to assemble.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the vibration-proof rubber according to the present invention;
FIG. 2 is a front view showing the first embodiment, FIG. 3 is a side view of FIG. 2, FIG. 4 is a front view showing a conventional anti-vibration rubber, and FIG. FIG. 1 is a perspective view corresponding to FIG. 12... Stabilizer rod, 22...φ anti-vibration rubber, 24... Through hole, 30...φ opening, 34... Case.

Claims (1)

[Claims] (1) A vibration-proof rubber having a through-hole fitted into a rod-shaped part and whose outer periphery is housed in a holding case, which has a natural shape with an opening that communicates the through-hole with the outside, and the rod-shaped part A vibration isolating rubber characterized in that the opening portion is brought into close contact with the rod-shaped portion by elastic deformation after being fitted into the rod-shaped portion.