Joint structure of a wheel bearing

Details Joint structure of a wheel bearing Joint structure of a wheel bearing

2001-05-08

2002-10-15

Will, Thomas B. (Department: 3671)

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Casters

Antifrictionally swivelled

C016S03100R, C016S039000, C403S278000

Reexamination Certificate

active

06463624

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a joint structure of a wheel bearing, wherein no relative rotation occurs between the bearing cover and pivotal casing. No extra welding operation is necessary so does the desired object is achieved.
BACKGROUND OF THE INVENTION
Referring to
FIG. 1
, in the prior art, a bearing
2
a
is installed to the yoke
30
a
f the pivotal casing
3
a
of a wheel. After the bearing cover
1
a
covers on the bearing
2
a,
the outer edge
10
a
at the distal end of the bearing cover
1
a
passes through the round hole
31
a
on the yoke
30
a
so that the outer edge
10
a
of the bearing cover
1
a
is bent so as to be buckled to the yoke
30
a.
Therefore, by the pivotal shaft
4
a,
the orientation of the wheel pivotally connected to the pivotal casing
3
a
can be controlled.
However, since the bearing cover
1
a
and the round hole
31
a
all have round shapes. Therefore, when the joint
32
a
of the two are loose, the bearing cover
1
a
possibly rotates on the yoke
30
a
so that the orientation of the wheel can not be controlled. Therefore, in the prior art, a welding
33
a
is necessary to enhance the joint so as to have a preferred joint structure. However, the cost and time are increased.
SUMMARY OF THE INVENTION
To achieve the object, the present invention provides a joint structure of a wheel bearing comprising a bearing cover and a pivotal casing. The bearing cover has an outer edge being installed with a plurality of upper sheets which expand outwards; and between two upper sheets are formed with a downward extending lower sheet. The pivotal casing has a top being formed with a yoke; and the yoke is installed with a through hole with respect to the lower sheet. The lower sheet passes through the respective through hole. Thereby, the lower sheet penetrates through the respective through hole and the bottom of the upper sheet resists against the top of the yoke, then the lower sheet bends outwards to press the bottom of the yoke. Therefore, the bearing cover is steadily fixed to the yoke of the pivotal casing. No extra welding is necessary for enhancing the structure.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.


REFERENCES:
patent: 501719 (1893-07-01), Hoffmann
patent: 1620658 (1927-03-01), Herold
patent: 1656512 (1928-01-01), Diss et al.
patent: 1710105 (1929-04-01), Noelting
patent: 1848348 (1932-03-01), Jarvis
patent: 2194817 (1940-03-01), Bolu
patent: 3483888 (1969-12-01), Wurzel
patent: 4364615 (1982-12-01), Euler
patent: 4831921 (1989-05-01), Potter
patent: 5007746 (1991-04-01), Matzelle et al.
patent: 6270260 (2001-08-01), Hale
patent: 6287013 (2001-09-01), Loncar et al.
patent: 6318900 (2001-11-01), Bere et al.
patent: 60-135304 (1985-07-01), None
patent: 5-248444 (1993-09-01), None
patent: 0618088 (1994-10-01), None

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