Land vehicles – Wheeled – Running gear
Patent
1997-06-09
1998-11-03
English, Peter C.
Land vehicles
Wheeled
Running gear
267189, 267276, 267141, B60G 0000
Patent
active
058297693
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention refers to a damping device used in stabilizers for motor vehicles, of the kind comprising a resilient bushing with a through-hole, adapted under clamping to enclose the stabilizer, and to be clamped in a mounting device provided with attachment parts for dampening attachment to the body of the vehicle, wherein the bushing is constituted by a non-split sleeve with a substantially cylindrical external shape, and with its through-hole positioned concentrically in its cylindrical portion, whereby the mounting device is constituted by a sleeve having a cylindric through-opening and in a manner known per se equipped with attachment parts for attachment to the vehicle body.
The invention also encompasses a method for mounting such a damping device.
BACKGROUND OF THE INVENTION
In order to limit the swaying, to which a car is subjected due to the centrifugal forces, which act during cornering, stabilizers are used, which limit the swaying and equalize the load between the springs in the wheel suspension for the outer and inner front wheels. Such stabilizers consist of a rod having a substantially straight intermediate portion and angled end portions, attached to the different wheel suspensions. By subjecting the straight portion of the stabilizer to a torsion the swaying is counteracted, and for this purpose the stabilizer is attached to the vehicle body at or adjacent its straight intermediate portion via dampening rubber bushings.
Such rubber bushings earlier have been attached to the straight intermediate portion of the stabilizer, e.g. in that a profiled rubber body with a through-hole has been provided with a slot, which makes it easy to pull the bushing onto the stabilizer. Thereupon this slatted bushing has been attached to the vehicle body by means of a two-part attachment, in which the bushing has been clamped, preferably by tightening screw joints. This design however involves a risk that water during running of the vehicle will penetrate through the slot and thereby "lubricate" the cooperating surfaces, which gives rise to noise in form of squeaking and furthermore substantially reduces the service life of the bushing. Another method, which is used for eliminating these problems is that the stabilizer is positioned in a mould wherein the rubber bushing is vulcanized directly onto the arm. In this manner the problems of a short service life and high noise levels are highly reduced, but this method gives rise to a doubling of the manufacturing cost as compared to the slotted bushing. In both cases the profiled rubber body furthermore means that a large number of variants is needed for different car makes and models
SUMMARY OF THE INVENTION
The purpose of the invention is to provide a stabilizer with dampening bushings, which does not give rise to the above mentioned problems, at the same time as the manufacturing cost is the same as or even is below that of the earlier used slotted dampening bushings. The invention also incorporates a method for mounting such a dampening device.
BRIEF DESCRIPTION OF THE DRAWING FIGURES
Hereinafter the invention will be further described with reference to an embodiment illustrated in the accompanying drawings.
FIG. 1 shows in an exploded view a portion of a stabilizer equipped with a slotted rubber bushing according to the prior art and with the associated mounting members.
FIG. 2 shows a portion corresponding to FIG. 1 of a stabilizer with a bushing with associated mounting detail according to the present invention during mounting.
FIG. 3 shows a bushing according to the invention in a side view.
FIG. 4 is a side view of a mounting sleeve for the bushing according to FIG. 3, and
FIG. 5 shows in side view and partly in cross section, the bushing according to FIG. 3 mounted in the sleeve according to FIG. 4.
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1 is diagrammatically shown a portion of a stabilizer 1, which at both ends is equipped with an ear whereby the stabilizer by means of washers, rubber bushings and a l
REFERENCES:
patent: 2027577 (1936-01-01), Crane
patent: 2194832 (1940-03-01), McIntyre
patent: 3181885 (1965-05-01), Baracos et al.
patent: 3448994 (1969-06-01), King et al.
patent: 4113278 (1978-09-01), Rissberger
patent: 4192529 (1980-03-01), Shiratori et al.
patent: 5064216 (1991-11-01), Hynds
AB Volvo
English Peter C.
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