JPH0650331A - Elastic supporter - Google Patents

Abstract

PURPOSE: To obtain satisfactory use characteristics by slight time and labor for manufacture and assembly and simply adapt spring characteristics of a supporting device to use examples, given respectively. CONSTITUTION: A damping body 5 is formed by at least one stopper damper 6, and the stopper damper is formed into a conical shape when viewed in the axial direction for a virtual plane 7 in the radial direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is an elastic bearing device provided with an inner ring and an outer ring surrounding the inner ring at radial intervals.
The outer ring and the inner ring jointly define an axially extending gap and are radially elastically connected to each other by a substantially C-shaped intermediate ring of elastically flexible material. A damping body disposed inside the gap is attached to one of the rings, and the damping body is made of a rubber elastic material, and the damping body and the other ring are supported. Between, in the form of being radially spaced in the absence of vibration.

[0002]

PRIOR ART German Federal Patent No. 2347446
An elastic bearing device of this type known from U.S. Pat.
It is formed as a separate damping ring and is formed for the intermediate ring from a soft elastic material or a hard elastic material. This damping body is provided with a reinforcing enclosure in the area of the mounting surface. This damping ring is fixed by means of a press fit to the inner ring provided on the elastic bearing device. The advantages of this known bearing device are found in the following points. That is, the desired spring properties can be easily adapted to the respective requirements. However, it should be noted here that this known elastic bearing device consists of a number of components which must be assembled separately. As a result, the manufacturability is not sufficient from the economical point of view, and the assembly is relatively troublesome.

[0003]

SUMMARY OF THE INVENTION The object of the present invention is to improve the elastic bearing device of the type mentioned at the outset, so that good use characteristics are obtained with little manufacturing and assembly work, and It is an object of the present invention to provide a bearing device in which the spring characteristics of the bearing device can be easily adapted to the respective application case.

[0004]

In order to solve this problem, in the arrangement according to the invention, the damping body is formed by at least one stop buffer, which is axial with respect to the virtual radial plane. It was made to have a conical shape when viewed in the direction.

Advantageous configurations of the invention are described in the subclaims.

[0006]

According to the invention, the spring properties can be adapted to the respective requirements in order to be relatively simple to manufacture by reducing the number of parts that have to be separately assembled. In order to
It is formed by a single stopper buffer, which is conical when viewed in the axial direction with respect to the virtual radial plane. The required spring eigenvalues and damping eigenvalues result in a stop buffer for the imaginary radial plane, due to the fact that the damping body is arranged in the gap limited by the shape-stable inner ring and outer ring It can be adjusted via the tilt of the vessel. The more acute the inclination angle of the stop bumper with respect to the radial plane, the stiffer the elastic bearing device. Furthermore, the maximum displacement movement of the inner ring with respect to the outer ring can be adjusted by the radial height of the stopper bumper. The greater the angle between the stopper bumper and the radial plane, assuming the same material is used, the weaker the spring properties.

The stopper bumper may be formed, for example, by an annular ridge extending annularly inside the gap. In this case, the advantage is that the use characteristics over a long use time are extremely advantageous. The surface pressure of this stopper buffer when contacting adjacent rings at a radial interval is relatively small and evenly distributed.

In another aspect of the invention, there are at least three stopper bumpers evenly distributed in the circumferential direction. Here, the elastic bearing device has a comparatively low weight, in the majority of the area of the intermediate ring undesired material deposition of rubber-elastic material is avoided and an annularly extending ridge is provided. This is advantageous in that die cutting becomes easier than in the case of.

In the arrangement according to the invention, the stop buffer is 0.25 to 0.66 times the radial gap height, preferably 0.
It has been found to be advantageous to have a radial length of 5 times. The mechanical load on the intermediate ring, which is C-shaped in cross section, can be reduced by limiting the extreme mutual displacement of both rings. This allows a relatively long usage time with good usage characteristics.

If stopper buffers are used at regular intervals in the circumferential direction, these stopper buffers may have a circumferential length which is at least equal to the radial length. As a result, it is possible to reliably prevent an extreme mechanical load on the elastic bearing device, and thus an early failure that may occur.

If the stopper shock absorber is formed integrally with the intermediate ring, an elastic bearing device is provided in a cost-effective manner.
And it can be manufactured easily. The additional fixing of a separately manufactured stopper bumper is thereby dispensed with. The spring properties are in this case mainly defined by the stopper dampers which are arranged conically when viewed in the axial direction. With regard to the angle and the dimensions of the stopper buffer, the stopper buffer can be adapted to the given service conditions.

The stopper bumper may be arranged in a separately formed ring body. In this case, the ring body can be fixed to the intermediate ring in a friction connection and / or in a form connection. Here, if wear occurs,
The advantage is that the stopper buffer can be easily replaced without the need for tedious repairs.

In order to obtain good service characteristics, it has proved to be advantageous for the stop buffer to make an angle of between 15 ° and 75 ° with the imaginary radial plane in relation to the requirements of the use case. It was

The stopper shock absorber can be assigned to adjacent rings at a radial distance adjacent to each other in the central region of the axial length of the rings, so that both rings are displaced relative to each other in the axial direction. Even if it does, the functional ability of the bearing device is maintained.

Prolonging the use time is achieved by the following. That is, it is achieved by arranging the stopper buffer from the radial plane so as to be inclined in the axial opening direction of the intermediate ring having a C-shaped cross section. Even if the two stoppers come into contact with the adjacent rings that are spaced apart in the radial direction due to the extreme mutual displacement of the two rings in the radial direction, the intermediate ring is not damaged. This is because the stopper buffer does not come into contact with the surface of the so-called bellows-like partial area of the intermediate ring during extreme displacements. This prevents premature wear and thus failure of the elastic bearing device.

To further increase the service life, the intermediate ring and / or the stopper bumper can be provided at least partially with a reinforcement. The reinforcement is particularly significant in the area of the top of the intermediate ring with a C-shaped cross section and in the area of the pivot points of the stopper damper. This causes a number of load alternations without wear phenomena.

[0017]

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIGS. 1 and 2 show an elastic bearing device used for an intermediate bearing of a cardan shaft provided in, for example, an automobile. This elastic bearing device comprises a rigid inner ring 1 and a rigid outer ring 2, for example made of metallic material. The inner ring 1 and the outer ring 2 are elastically supported to each other by an intermediate ring 4 of C-shaped cross section made of an elastically flexible material. Inside the gap 3 straddled by the intermediate ring 4, a damping body 5 is arranged in the form of a stopper buffer which extends annularly along the peripheral surface, which stopper buffer is formed as an annular ridge. ing. The stopper shock absorber 6 is formed integrally with the intermediate ring 4, and surrounds the inner ring 1 with a rubber elastic material. An intermediate ring 4 is adhesively fixed to the inner surface of the outer ring 2 facing the gap 3. The stopper buffer 6 makes an angle of 35 ° with the imaginary radial plane 7 in this example. The outer ring 2 is connected to a holding device 8 by means of which the elastic bearing device can be fixed, for example, on the lower bottom of the vehicle body. The intermediate ring 4 with a C-shaped cross section has an axial length which is at least 1.5 times the axial length of the inner ring 1 and the outer ring 2 which adjoin on both sides in the radial direction.

The mechanical load on the intermediate ring 4 can be reduced thereby. Inner ring 1
Is completely surrounded by the elastomeric material of the intermediate ring 4 in this embodiment, so that additional vibration damping / isolation is obtained due to the rolling bearings mounted in this elastic bearing. .

[Brief description of drawings]

1 is a longitudinal sectional view of an elastic bearing device according to the invention.

FIG. 2 is a front view of the bearing device shown in FIG.

[Explanation of symbols]

1 inner ring, 2 outer ring, 3 gap, 4 intermediate ring, 5 damping body, 6 stopper shock absorber, 7 radial plane, 8 holding device

 ─────────────────────────────────────────────────── —————————————————————————————————————————————————————————————————————————— In An Inventor Arnold Zimtis Germany Bad Kreuzner Happfinkstowiese 3

Claims (10)

[Claims] 1. A resilient bearing device comprising an inner ring and an outer ring surrounding the inner ring at radial intervals, the outer ring and the inner ring being provided. And a ring jointly defining an axially extending gap, which are radially elastically supported to one another by an intermediate ring of substantially C-shaped cross section made of an elastically flexible material. One of which is provided with a damping body disposed inside the gap, the damping body being made of a rubber-elastic material, and a vibration-free state between the damping body and the other ring. Of the type in which the radial spacing is maintained, the damping body (5) is formed by at least one stopper buffer (6), which stopper buffer is an imaginary radial plane (7).
Elastic support device, characterized in that it is conical when viewed in the axial direction. 2. The elastic bearing device according to claim 1, wherein the stopper damper (6) is formed by an annular ridge extending annularly inside the gap (3). 3. At least 3 evenly distributed in the circumferential direction
2. One stop buffer (6) is provided.
The elastic bearing device described. 4. The stopper buffer (6) according to claim 1, wherein the stopper buffer (6) has a radial length of 0.25 to 0.66 times the radial gap height. The elastic bearing device described. 5. The elastic bearing device according to claim 3, wherein the stopper buffer has a circumferential length at least equal to the radial length. 6. The stop buffer (6) is formed integrally with the intermediate ring (4).
The elastic bearing device according to any one of the above. 7. The stopper damper (6) forms an angle of 15 ° to 75 ° with an imaginary radial plane (7).
An elastic bearing device according to any one of claims 1 to 6. 8. The stopper damper (6) is assigned to the rings (1, 2) adjacent to each other at a radial interval in the range of the center of the axial length of the rings. 1
The elastic bearing device according to any one of claims 1 to 7. 9. The stop buffer (6) is arranged inclined from the radial plane (7) in the axial opening direction of the intermediate ring (4). The elastic bearing device according to any one of 1. 10. Resilient bearing device according to claim 9, wherein the intermediate ring (4) and / or the stop bumper (6) are at least partially provided with a reinforcement.