Land vehicles – Wheeled – Tiltable vehicles – stabilized by attendant or article
Reexamination Certificate
2002-10-16
2004-10-26
Johnson, Brian L. (Department: 3611)
Land vehicles
Wheeled
Tiltable vehicles, stabilized by attendant or article
C280SDIG006, C280S047240, C301S111010, C403S397000
Reexamination Certificate
active
06808186
ABSTRACT:
BACKGROUND AND SUMMARY OF THE INVENTION
The present invention relates to a golf bag and, more specifically, to a wheel structure for golf bag, which is easy to install, and inexpensive to manufacture.
FIG. 1
shows a wheel structure for golf bag according to U.S. Pat. No. Des. 385,114. This design of wheel structure comprises a wheel bracket
8
connectable to the bottom cuff of a golf bag
80
, the wheel bracket
8
having two side frames
81
and two axle holes
811
respectively formed in the side frames
81
and axially aligned, two wheels
83
, and two rivets
82
respectively fastened to the axle holes
811
of the side frames
81
of the wheel bracket
8
to pivotally secure the wheels
83
to the side frames
81
. This design of wheel structure is not durable in use because the rivets
82
wear quickly with use.
FIG. 2
shows another prior art design of wheel structure for golf bag. According to this design, the wheel structure comprises a wheel bracket
9
, the wheel bracket
9
comprises two hollow wheel holder frames
91
, each wheel holder frame
91
having two axle holes
9111
respectively formed in two opposite sidewalls
911
thereof, two wheels
90
, each wheel
90
having a center axle hole
901
, a wheel axle
93
inserted through the axle holes
9111
of the wheel holder frames
91
of the wheel bracket
9
and the center axle hole
901
of each wheel
90
to support the wheels
90
in the wheel holder frames
91
of the wheel bracket
9
, a plurality of axle bearings
902
respectively mounted in the ends of the center axle holes
901
of the wheels
90
to support the wheel axle
93
in the wheels
90
, a plurality of washers
94
respectively mounted on the wheel axle
93
between the two opposite sidewalls
911
of each of the wheel holder frames
91
and two sides of each of the wheels
90
, and two screw caps
95
respectively threaded onto the threaded ends
931
of the wheel axle
93
outside the wheel bracket
9
to secure the wheel axle
93
in place. This design of wheel structure for golf bag has numerous drawbacks as outlined hereinafter.
1. The use of the axle bearings
902
, washers
94
, and screw caps
95
greatly complicates the assembly procedure of the wheel structure and also increases the manufacturing cost of the wheel structure.
2. The inner threads of the screw caps
95
wear quickly with use. When the screw caps
95
start to wear, a high noise will be produced during moving of the wheel structure with the golf bag. If the screw caps
95
disconnected from the threaded ends
931
of the wheel axle
93
, the wheels
90
will fall out of wheel axle
93
.
3. Because the mounting and dismounting of the wheels
90
are complicated, the wheel diameter of the wheels
90
is limited to a small range.
The present invention has been accomplished to provide a wheel structure for golf bag, which eliminates the drawbacks of the aforesaid prior art designs. It is one object of the present invention to provide a wheel structure for golf bag, which is detachable. It is another object of the present invention to provide a wheel structure for golf bag, which is easy to assemble and disassemble. It is still another object of the present invention to provide a wheel structure for golf bag, which is easy and inexpensive to manufacture. To achieve these and other objects of the present invention, the wheel structure of golf bag comprises a wheel bracket connectable to the bottom cuff of a golf bag, a wheel axle inserted through two axle holes in two opposite side frames of the wheel bracket, two wheels, two connectors respectively mounted in the center axle hole of each of the wheels and capped onto the ends of the wheel axles, each connector an upper spacer block and a lower spacer block outwardly protruded from the head thereof and an outer cap fixedly connected to the spacer blocks and arranged in parallel to the head, and two clamps fastened to the upper and lower spacer blocks of the connectors and detachably engaging a respective annular groove of the wheel axle to secure the wheel axle to the connectors.
REFERENCES:
patent: 4765646 (1988-08-01), Cheng
patent: 5277480 (1994-01-01), Chiu
patent: 5368371 (1994-11-01), Markling
patent: 5494341 (1996-02-01), Cheng
patent: 5716107 (1998-02-01), Parker et al.
patent: 5884982 (1999-03-01), Yemini
patent: 6354670 (2002-03-01), Cheng
patent: 6361121 (2002-03-01), Morris
patent: 6508518 (2003-01-01), Owen et al.
patent: 2002/0038973 (2002-04-01), Godwin
patent: 2002/0192019 (2002-12-01), Wack et al.
patent: WO 02/24472 (2002-03-01), None
Johnson Brian L.
Klebe G B
Troxell Law Office PLLC
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