Mounting structure for rolling bearing

Details Mounting structure for rolling bearing Mounting structure for rolling bearing

2002-06-27

2004-03-16

Hannon, Thomas R. (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S539000

Reexamination Certificate

active

06705763

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention mainly relates to a mounting structure for an axle rolling bearing.
2. Description of the Related Art
An axle rolling bearing in a vehicle has such a structure as shown in FIG.
42
. This axle rolling bearing
100
includes an outer ring member
102
which is non-rotatably supported by a mounting member
101
mounted to a vehicle body (which mounting member will be referred to as “knuckle” hereinafter), an inner ring member
103
which is arranged inward in the diameter direction of the outer ring member
102
, and balls
104
in a plurality of rows which can freely roll between the outer ring member
102
and the inner ring member
103
.
An mounting structure for attaching the axle rolling bearing
100
constituted as stated above, to the knuckle
101
will be described below.
This mounting structure includes an annular anti-slip piece
105
which is formed by protruding the vehicle inner side A outside surface of the knuckle
101
inward in the diameter direction so as to restrict the outer member
102
from moving toward the vehicle inner side A. In addition, this mounting structure includes the following means for restricting the outer ring member
102
from moving toward a vehicle outer side B.
Specifically, this means has a sleeve
106
of an L-shaped cross section which is fitted into the vehicle outer side B edge section of the outer ring member
102
, and a groove
107
which is formed in the end portion of the vehicle outer side B inner peripheral surface of the central bore of the knuckle
101
. The sleeve
106
has elastic pieces
108
engaged with the groove
107
at predetermined intervals in the peripheral direction of the sleeve
106
.
With this mounting structure, if the outer ring member
102
is inserted into the central bore of the knuckle
101
, the elastic pieces
108
are pressed by the end portion of the outer peripheral surface of the central bore of the knuckle
101
and bent to be fall toward an axial center. If the outer ring member
102
is inserted into a predetermined position, i.e., inserted until the end portion of the outer ring member
102
abuts on the anti-slip piece
105
, then the elastic pieces
108
rise by their own elastic forces and enter the groove
107
. The outside surfaces of the elastic pieces
108
abutted on and engaged with the wall surface of the groove
107
, whereby it is possible to prevent the outer ring member
102
from slipping out to the vehicle outer side B.
Meanwhile, recently, the reduction of axle rolling bearings of this type in the direction of the axial center is underway. With the mounting structure shown in
FIG. 42
, however, the bent portion of the sleeve
106
protrudes from the outside surface of the outer ring member
102
toward the vehicle outer side B by as much as the thickness thereof (as indicated by &agr; in FIG.
42
). In addition, the wall surface of the end portion of the central bore is required to have a predetermined length so as to allow the elastic pieces
108
to fall and the knuckle
101
is required to have that length in addition of the axial center accordingly.
As can be understood, if the axial width of the knuckle
101
is secured for the mounting structure, the degree of freedom of design is disadvantageously lowered.
SUMMARY OF THE INVENTION
It is, therefore, an object of the present invention to provide a mounting structure for a rolling bearing (or an axle rolling bearing, in particular) capable of decreasing the axial width of a knuckle as much as possible and improving the degree of freedom of design.
The other objects, features and advantages of the present invention will be readily apparent from the following description of the invention.
A rolling bearing mounting structure according to the present invention is for mounting a rolling bearing to an insertion bore formed in a support member, wherein the support member non-rotatably supports an outer ring member provided at the rolling bearing around an axial center, and the rolling bearing mounting structure is provided with: an anti-slip piece formed on an axial end portion of the insertion bore formed in the support member, for preventing the rolling bearing from slipping out of the insertion bore toward one of one side and the other side of the insertion bore in a direction of the axial center; a first concave section formed at a position halfway along the insertion bore in the direction of the axial center, in a circumferential direction; a second concave section formed at a position opposed to the first concave section in a diameter direction on an outer peripheral surface of the outer ring provided at the rolling bearing, in the circumferential direction; and an anti-slip member engaged with engagement surfaces formed on the first concave section and the second concave section, respectively, and preventing the rolling bearing from slipping out of the insertion bore toward the other one of one side and the other side of the support member in the direction of the axial center.


REFERENCES:
patent: 4364615 (1982-12-01), Euler
patent: 4647230 (1987-03-01), Friedrich et al.
patent: 5564838 (1996-10-01), Caillault et al.
patent: 5927867 (1999-07-01), Niebling et al.
patent: 6007253 (1999-12-01), Rutter
patent: 6112411 (2000-09-01), Rutter
patent: 6161963 (2000-12-01), Doell et al.
patent: 31 11 689 (1982-10-01), None
patent: 01/54925 (2001-08-01), None

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