Joints and connections – Interfitted members – Radially interposed shim or bushing
Reexamination Certificate
2000-02-04
2001-12-25
Kim, Harry C. (Department: 3629)
Joints and connections
Interfitted members
Radially interposed shim or bushing
C280S279000, C074S551100
Reexamination Certificate
active
06332735
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to a bicycle, and more particularly to a headset of the bicycle.
2. Description of the Prior Art
As shown in
FIGS. 1A-1B
a prior art bicycle headset comprises a bearing set
2
A having an upper bearing cover
3
A and a tapered ring
4
A, which are separately assembled such that their centers can not be easily aligned, and that the upper bearing and lower bearing do not turn smoothly, and further that the component parts are apt to have gaps.
As shows in
FIG. 2
, another prior art bicycle headset comprises a cylindrical fastening sleeve, two symmetrical conical shaft keys, and an elastic tapered ring. The horizontal angles of the upper bearing and the lower bearing cooperate well so as to result in a smooth rotation of the upper bearing and the lower bearing. However, the arcuate restraining rings
50
and
52
of the prior art headset can not be fastened securely.
Moreover, the prior art bicycle headset is formed of numerous component parts and is therefore not cost-effective.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a bicycle with an improved headset which is free from the deficiencies of the prior art bicycle headsets described above.
The features and the functions of the present invention will be readily understood upon a thoughtful deliberation fo the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.
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Bacon & Thomas PLLC
Kim Harry C.
Tien Hsin Industries Co. Ltd.
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