DE3411343C2 - - Google Patents

Description

The invention relates to an elastic pivot bearing ge according to the preamble of the only claim.

From DE-OS 32 25 927 an elastic pivot bearing is known whose rubber-elastic insert consists of rolls, which in the un strained state elliptical cross-section. The individual rolls are circumferential Bridges connected, but here the individual roles are not connected to one another by webs. For that points the end face of the rubber-elastic insert one ring each bulges over the outer metal sleeve radially and axially protrudes. Because such elastic pivot bearings in the vehicle in such Positions are arranged in which they are of pollution exposed from the street prevent the ring beads largely penetration of dirt into the bearing. The Be dealing with sealing problems between cavities of Rubber metal components and the outside world is also in the DE-OS 14 00 969 described.

The be in DE-OS 32 25 927 and in US-PS 32 02 410 Written elastic pivot bearings have been found in stabilizers well proven by motor vehicles. You can do the appropriate Torsional and deformation forces effective in the context of their task record, tape. Such pivot bearings are on the part of the automobile industry constantly exposed to growing demands.

The following additional requirements are made:

• a) low-friction seal
• b) softer response of the socket to torsion
• c) Decoupling the two functions torsion and sealing
• d) prevention of possible axial displacement the rubber insert.

The resulting task of the invention now by the characterizing features of the only patentee solved.

The invention will be used in conjunction with a drawing, for example described wisely. This shows in

Fig. 1 shows a cross section in the axial direction and in

Fig. 2 in the radial direction through the elastic bearing.

According to Fig. 1 is between the inner sleeve 1 and an outer sleeve 2, a rubber insert, which consists of rollers 3 with an elliptical cross section. This can be clearly seen in Fig. 2. The rollers 3 are connected to one another by webs 4 . In the case of relative twisting processes between the outer sleeve 2 and the inner sleeve 1 , rolling takes place without friction, so that corresponding restoring forces occur. The special design makes a strong angle of rotation possible without the rolling process going into a sliding process. The end faces of the rollers 3 merge into outer annular beads 5 and 6 . These each have an annular rib 7 and 8 , which are seated under tension on the inner sleeve 1 . Angular adjustments between the sleeve 1 and the sleeve 2 are possible without the ring ribs 7 and 8 lifting off as a result of a preload.

At the edges 9 of the outer sleeve 2 , the rubber insert has flat ring grooves 10 . This creates space for the rubber displacement. In addition, the possible friction on the edge 9 is significantly reduced. The standing in the undeformed radially aligned annular surface 12 serves the improved adaptation to possible shock loads.

Claims (1)

Elastic pivot bearing with two concentric, rigid sleeves, between which a rubber-elastic insert is seen before, which expediently consists of rollers which are clamped between the sleeves, with the end face of the rubber-elastic insert having an annular bead on the axially opposite side, which the Radially and axially protrudes from the outer metal sleeve, characterized in that the annular beads ( 5, 6 ) merges into an annular rib ( 7, 8 ) on the outer side, which is seated under tension on the cylindrical surface of the inner metal sleeve ( 1 ) and in that a flat annular groove ( 10 ) is arranged between the annular beads ( 5, 6 ) and the rubber-elastic insert.