Land vehicles – Wheeled – Occupant propelled type
Reexamination Certificate
2000-02-07
2001-07-24
Hurley, Kevin (Department: 3619)
Land vehicles
Wheeled
Occupant propelled type
C384S431000
Reexamination Certificate
active
06264226
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a children's bicycle, and more particularly to a wheel axle pivoting structure of the children's bicycle.
BACKGROUND OF THE INVENTION
As shown in
FIGS. 1-4
, a children's bicycle
10
of the prior art has a chain ring shaft tube
11
which is provided at both ends thereof with a position confining recess
12
. The bicycle
10
also has an axle
13
which is provided at both ends thereof with a crank arm
15
having a shaft support hole
14
. A chain ring
16
is mounted on the axle
13
, which is fastened pivotally to the shaft tube
11
by two shaft support members
17
and
18
, which comprise an annular tube member
20
having an annular lip
21
, an insertion protrusion
22
, an annular cell
23
, a stepped annular edge
24
, and a semiannular plate member
26
having a stop edge
25
. The shaft support member
18
is further provided with a fine annular plate
27
, a wide annular plate
28
, and an elastic annular member
29
. A tubular bolt member
30
is received in a support hole
31
of the axle
13
. The prior art axle pivoting structure is too complicated and can not be easily assembled.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a children's bicycle with an axle pivoting structure comprising a first shaft support member, a second shaft support member, and an annular tubular member. The first shaft support member is formed of two semiannular members, with each having an annular lip. The second shaft support member is formed of two semi-tapered members, with each having an annular protruded edge. The annular tubular member has an annular lip and a tapered cell. The axle pivoting structure is relatively simple in construction.
The objective, features and functions of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of the present invention with reference to the accompanying drawings.
REFERENCES:
patent: 4358967 (1982-11-01), Kastan
patent: 5437510 (1995-08-01), Jeng
patent: 6003889 (1999-12-01), Shalom
patent: 6058804 (2000-05-01), Chang
Harrison & Egbert
Hurley Kevin
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