The invention relates to a holding element for connecting a rod to the body or the chassis of a vehicle by means of an elastic bearing according to the preamble of the main claim.
The DE 39 25 107 A1 among others is describing a suspension for a vehicle in which a mounting element for the rod is held by means of a first and a second holding element from the inner side and the outer side, respectively, wherein the mounting member is projecting through the side of the body of the vehicle.
German Patent 937564 is describing an elastic bearing connecting a rod with a body. The elastic bearing is fixed to the rod by means of a hexagonal machine screw passing through the bearing and the rod and a hexagonal nut screwed thereon. Between the hexagonal nut and the inner sleeve of the elastic bearing, a washer is positioned slightly concavely outwardly directed to the free end of the elastic bearing. This washer is overlying the circumference of the outer sleeve of the elastic bearing at the free end thereof with the external circumference to form an abutment for the rubber bearing under axial load. The exterior flank of the rubber is parallelly positioned in a distance with respect to the interior surface of the washer to avoid the occurrence of transverse forces in the case of an axial support.
It is the task to be solved by the present invention to provide for a holding element for connecting a rod to the body or the chassis of a vehicle by means of an elastic bearing in which the rod on one side is connected with the rubber bearing in such a way that the latter cannot be displaced axially in case the adherence of the rubber bearing is defective leading to a substantial deterioration of the driving properties of the vehicle.
This task according to the invention is solved by the characterizing features of claim 1. Further improvements of the invention can be learnt from the sub-claims.
According to the invention, a holding element for connecting a rod to the body or the chassis of a vehicle by means of an elastic bearing consisting of at least one outer sleeve and one inner sleeve provided with an elastic material, especially a rubber material, in the annular space remaining there-between, wherein the outer sleeve is fixed to the body or the chassis and the inner sleeve is fixed to the rod by means of a bolt which is passing through the inner sleeve and which is carrying a securing disk on its free end which secures the elastic bearing against a damaging offset in the event of defective adhesion of its individual parts in the axial direction by extending at least up to the outer sleeve in a radial direction, wherein at least a part of its outer circumference is embodied in such a way that it is oriented in an essentially concave manner away from the elastic bearing.
This has the advantage that by the use of only one disk the weight and the costs of the holding element are decreased. The substantially increased section modulus of the adaptation of the securing disk enables the use of a comparatively thin securing disk. Further, the elastic bearing cannot slide out of the bushing due to defective adhesion.
A preferred embodiment according to the invention is characterized in that the securing disk at least over a part of its outer circumference is bent away from the elastic bearing such that a nut screwed onto the free end of the bolt or the head of a machine screw is held safely against rotation.
In an advantageous way therefore the safety against rotation and loss is combined in a simple way.
In an advantageous embodiment according to the invention the securing disk is bent several times, especially three times, away from the elastic bearing over a part of its circumference, whereby the section modulus is optimally increased.
Two preferred embodiments of the invention are more detailly described in the specification below and the drawings. In the drawings show:
In
Number | Date | Country | Kind |
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02 28 653.1 | Jun 2002 | DE | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/DE03/02117 | 6/25/2003 | WO | 11/4/2004 |