Land vehicles – Wheeled – Occupant propelled type
Reexamination Certificate
1999-07-27
2001-05-15
Johnson, Brian L. (Department: 3618)
Land vehicles
Wheeled
Occupant propelled type
C280S276000
Reexamination Certificate
active
06231063
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a steering bearing assembly for a bicycle, and more particularly, to a steering bearing assembly having an annular race and the head tube having a groove defined in each end there so that the race can be easily engaged with the groove of the head tube manually.
BACKGROUND OF THE INVENTION
A conventional steering bearing assembly
600
is shown in FIG.
5
and includes a first race
60
having a neck portion
601
inserted into the head tube
20
, a bearing
61
engaged with the groove defined in the first race
60
and a ring
62
retaining the bearing
61
in position. A second race, or engaging member,
63
is used to press the ring
62
in position. A steering tube
50
extends through the two sets of steering bearing assemblies
600
at two ends of the head tube
20
, and a handlebar stem is fixedly connected to the steering tube
50
so that when turning the handlebar, the steering tube
50
rotates while the head
220
is not rotated. It is to be noted that the neck portion
601
of each steering bearing assembly
600
has to be force-fitted into the head
220
by a specific machine. In other words, consumers would find it difficult to press the neck portion
601
into the head tube with a simple tool.
The present invention intends to provide a combination of a steering bearing assembly and a head tube for a bicycle, wherein the head tube has an annular groove at two ends thereof, and the first race of the steering bearing assembly has an annular race which is easily received in the groove so that the pressing machine will not be necessary when installing the steering bearing assembly to the head tube. The present invention provides a steering bearing assembly which is able to be connected to the head tube manually.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, a punch is provided a combination of a steering bearing assembly and a head tube of a bicycle. The head tube has two enlarged ends and each enlarged end has a first groove defined in the inside thereof. The steering bearing assembly has a first race which is received in the first groove of the head tube and has a second groove defined in the inside thereof. A bearing is received in the second groove with a retaining member mounted to the bearing so that the bearing is retained between the first race and the retaining member. A pressing member is mounted to the retaining member.
The primary object of the present invention is to provide a combination of a steering bearing assembly and a head tube of a bicycle wherein the steering bearing assembly is easily put in the groove defined in each enlarged end of the head tube.
Further objects, advantages, and features of the present invention will become apparent from the following detailed description with appropriate reference to the accompanying drawings.
REFERENCES:
patent: 722171 (1903-03-01), Baden-Powell
patent: 4573698 (1986-03-01), Takahashi et al.
patent: 4874073 (1989-10-01), Tagawa
patent: 5211489 (1993-05-01), Moore
patent: 5330220 (1994-07-01), Nagano
patent: 5647684 (1997-07-01), Chen
patent: 5893574 (1999-04-01), Campagnolo
patent: 5964474 (1999-10-01), Chen
patent: 5-32188 (1993-02-01), None
Johnson Brian L.
Lerner Avraham H.
Rosenberg , Klein & Lee
LandOfFree
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