Joints and connections – With adjunctive protector – broken parts retainer – repair,... – Position or guide means
Patent
1999-06-16
2000-09-05
Kim, Harry C.
Joints and connections
With adjunctive protector, broken parts retainer, repair,...
Position or guide means
403168, 280 8675, 280 93511, F16B 500
Patent
active
061132993
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a position-variable face-side clamping of a ring body, particularly in the case of a bearing for wheel control arms of motor vehicles. The ring body is clamped in use between oppositely situated bearing legs by means of a bolt which can be axially inserted into aligned openings in the bearing legs as well as the ring body and having stops which can be provided on the end sides of the bolt for bracing the legs with respect to the ring body.
Position-variable linkings of the above-mentioned type are customary, for example, when wheel control arms for motor vehicles are linked in order to be able to fix eccentric positions deviating to both sides starting from a center position endeavored in series-type assembling. In addition to having other reasons, this is endeavored in order to be able to correct changes of the camber and caster, which occurr after slight collisions, such as a violent contact with the curb, to such an extent that the tolerance field for the caster and the camber permitted within the framework of the series production and for a safe operating behavior is maintained again. Otherwise, such corrections would require interventions in the vehicle body, for example, by realigning it, which is required after more serious accidents but would lead to unacceptable expenditures in the case of less serious collisions.
In the case of a construction known from German Patent Document DE 4327021 C1, the adjusting possibilities are, among other things, achieved by an especially profiled shape of the openings of the bearing legs together with washers which are profiled in an adapted manner and by using screw bolts with machined-in profiled recesses. An especially profiled screw bolt is required only for a position offset from the center. In contrast, for a centric position of the screw bolt, a conventional screw bolt can be used, for example, in a standardized construction, which has a cylindrical shaft and a thread which is not interrupted with respect to its circumference. This profiling of the openings in the bearing legs consists of the fact that, in the case of a basic oblong hole shape, one guide web respectively which projects into the opening is provided on the opposite short sides so that each of the bearing leg openings has a pair of oppositely situated guide webs. As a result of these guide webs, a screw bolt which is closed with respect to its circumference can be introduced in a centric manner. However, if a screw bolt is to be situated eccentrically in the opening of a bearing leg, a screw bolt must be used which is especially provided with a guide groove. In that the screw bolt reaches by means of this one guide groove over the guide web of the oblong hole bore of the bearing leg, it is situated eccentrically inside this opening. In order to be held in this position during the assembly, a ring disk must be used which can be inserted into the opening of the bearing leg such that the screw bolt cannot slide out of its eccentric position. The ring disk must therefore be provided with a cam which reaches into the opening.
From German Patent Document DE 42 06 415 C1, a clamping of the above-mentioned type is also known in the case of which the screw bolt is at least partially toothed on its circumference and, in the bearing legs, can be slid in one oblong hole respectively, with an identically toothed edge transversely to the axis of the ring body. In the case of this construction, particularly no desired position of the screw bolt can be predetermined within the bearing leg openings. On the contrary, this desired position must in each case be adjusted because the screw bolt may take up positions which basically deviate from a center position within the oblong hole. In practice, this is sometimes undesirable.
In view of the above, the invention is mainly based on the problem of further developing the position-variable clamping of the above-mentioned type such that the position fixing of the bolt can be achieved without additional auxiliary devices. Thus, on the one hand, i
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patent: 5647606 (1997-07-01), Jordan
Jeglitzka Maximilian
Reichelt Helmut
Daimler-Chrysler AG
Kim Harry C.
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