Bearings – Rotary bearing – Plain bearing
Patent
1999-03-08
2000-09-05
Hannon, Thomas R.
Bearings
Rotary bearing
Plain bearing
384 42, 384276, 384906, F16C 3302
Patent
active
061132756
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention concerns a sliding bearing for mounting shafts and the like, with a bearing body made of plastic and a housing supporting the bearing body, where the sliding bearing essentially encloses the full circumference of the shaft.
BACKGROUND OF THE INVENTION
In previously known sliding bearings with plastic bearing bodies, the bearing body enclosing the full circumference of the shaft is designed in one piece. If the bearing body needs to be exchanged on account of wear or other damage, the shaft and the sliding bearing have to be completely dismantled, so that the bearing body can be removed from the shaft in the axial direction of the shaft. The new bearing body subsequently has to be slid onto the shaft in the axial direction and the entire shaft completely reassembled and adjusted. Such a procedure is extremely tedious and time-consuming, especially with shafts which run on multiple bearings and whose bearings can only be dismantled with difficulty.
SUMMARY OF THE INVENTION
The problem addressed by this invention is to create a sliding bearing which can be mounted on a shaft or the like far more easily.
In accordance with this invention, this problem is solved in that the bearing body displays a slit extending along the entire length of its axis and at least one deformable zone, likewise extending along the entire length of the axis, which allows the slit to be opened so that the bearing body can essentially be fitted to the shaft, and also removed from the shaft, in the radial direction.
Thus, in order to assemble or disassemble the bearing body, only the housing supporting the bearing body need be displaced axially on the shaft, so that access is provided to the bearing body, and the bearing body need subsequently only be removed from the shaft in the radial direction by opening the slit. In this context, the shaft is still supported by the other bearings provided and need not be disassembled in order to remove the damaged bearing body, meaning that the time and effort required for repair work on the respective machine is cut drastically. The new bearing body can, in turn, be fitted onto the shaft in the radial direction by opening the slit as far as necessary and then mounted in the housing after the slit has been closed, displacing it on the shaft in the axial direction if necessary.
Opening and closing of the slit is made possible by the deformable zone extending along the entire axial length of the bearing body. The deformability of this zone can be achieved in that the deformable zone displays a thinner wall thickness than the zone of the bearing body supporting the shaft. This zone can be designed as a film bridge, for example, where the film bridge can also display perforations. When the sliding bearing is assembled, the film bridge can likewise be positioned against the shaft or at a distance from it if the bearing body displays an appropriate wall thickness.
An example of the invention is described below and illustrated on the basis of the drawings. The drawings show the following:
DESCRIPTION OF THE DRAWINGS
FIG. 1 A schematic representation of a first design of a bearing body, with segment-like sliding zones, in cross-section (top) and from the side (bottom),
FIG. 2 A schematic representation of a bearing body according to FIG. 1 mounted in a housing, in cross-section (top) and in elevation (bottom),
FIG. 3 A schematic representation of a second design of a bearing body, in cross-section (top) and from the side (bottom), and
FIG. 4 A schematic representation of a bearing body according to FIG. 3 mounted in a housing, in cross-section (top) and in elevation (bottom).
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIG. 1, the bearing body 1 made of low-slip plastic displays a slit 2 extending along its entire axial length. The sliding zone of the bearing body is split into several webs 3 extending in the axial direction of the bearing body, whose inner radial surfaces 4 create the sliding surface which comes into contact with the shaft which i
REFERENCES:
patent: 3194615 (1965-07-01), Weasler
patent: 3333513 (1967-08-01), Wettstein
patent: 3362765 (1968-01-01), Pierce
patent: 3366356 (1968-01-01), Fisher
patent: 3451705 (1969-06-01), Turpen
patent: 3561830 (1971-02-01), Orndorff, Jr.
patent: 3637273 (1972-01-01), Orndorff, Jr.
patent: 3771846 (1973-11-01), Bass et al.
patent: 3929392 (1975-12-01), Ogino
Hannon Thomas R.
Igus Spritzgussteile fur die Industrie GmbH
LandOfFree
Plain bearing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Plain bearing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plain bearing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2205695