Spring devices – Vehicle – Elastomeric
Reexamination Certificate
1998-03-11
2001-06-05
Oberleitner, Robert J. (Department: 3613)
Spring devices
Vehicle
Elastomeric
C403S222000
Reexamination Certificate
active
06241225
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention is directed to a rubber bearing, particularly for the bearing support of a stabilizer bar in a motor vehicle, comprising two rubber half-shells. A side of one of the half-shells is connected with a side of the other one of the half-shells with a thin rubber connecting piece.
2. Description of the Related Art
Prior art rubber-metal bushings of the above-mentioned type are already known (see, for example, German reference DE-PS 39 03 350), wherein two outer bearing half-shells are clamped together to form a receptacle lug. These outer bearing half-shells receive two rubber-metal half-shells. For this purpose, a rubber layer is provided at the radial inner metal reinforcement, this rubber layer extending continuously from one metal half-shell to the other metal half-shell so that the two rubber-metal half-shells hold together and form a rubber film hinge at the continuous thin rubber layer. The two rubber-metal half-shells are foldable about this rubber film hinge to facilitate assembly. This prior art design is disadvantageous in that folding can only take place within a restricted angular area, namely in the area in which the outer bearing half-shells abut at one another.
SUMMARY OF THE INVENTION
It is the object of the invention to provide a rubber bearing which is not only easy to assemble, but can also be manufactured simply and economically.
To meet this object, a rubber connecting piece for connecting the two half-shells is arranged at the radially outermost region of the half-shells.
In one preferred embodiment, the rubber connecting piece has a length dimension that allows one half-shell to be rotated by approximately 180° relative to the other half-shell. Because one of the two half-shells is rotatable by approximately 180° relative to the other, it is possible to manufacture both half-shells with identical shapes. During manufacturing, each half-shell is located in a cavity of a die so that a hinge (i.e., rubber connecting piece) is formed by a corresponding rubber overrun or flash, wherein the hinge is designed to be completely flexible and is made from rubber.
According to another embodiment form, the rubber piece is arranged over approximately the entire axial length of the rubber bearing. Advantageously, a hinge of appropriate durability is provided by the rubber piece, which hinge is needed only for assembly, after which this rubber connecting piece no longer has any particular function.
According to another embodiment, at least one half-shell includes at least one reinforcement. In this embodiment, the reinforcement is a metal element is advantageously provided with at least one opening for an improved connection with the rubber half-shell.
To facilitate assembly and a defect-free fixing of the rubber bearing in its operable position, at least one of the half-shells is comprises at least one flange for positioning the rubber bearing and to absorb axial forces.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of the disclosure. For a better understanding of the invention, its operating advantages, and specific objects attained by its use, reference should be had to the drawing and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
REFERENCES:
patent: 3559979 (1971-02-01), Muller
patent: 5013166 (1991-05-01), Domer
patent: 5080334 (1992-01-01), Mihara et al.
patent: 5261748 (1993-11-01), Kameda
patent: 5437439 (1995-08-01), Brokamp et al.
patent: 5520465 (1996-05-01), Kammel
patent: 89 01 525 (1989-02-01), None
patent: 39 03 350 (1990-08-01), None
patent: 42 04 252 (1993-08-01), None
patent: 43 09 425 (1994-06-01), None
patent: 44 13 666 (1995-06-01), None
Cohen & Pontani, Lieberman & Pavane
Mannesmann Boge GmbH
Oberleitner Robert J.
Rodriguez Pamela J.
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