Land vehicles – Wheeled – Tiltable vehicles – stabilized by attendant or article
Reexamination Certificate
2003-01-13
2004-11-02
Ellis, Christopher P. (Department: 3618)
Land vehicles
Wheeled
Tiltable vehicles, stabilized by attendant or article
C280SDIG006, C280S047210
Reexamination Certificate
active
06811162
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a front wheel-adjusting device for a golf cart, particularly to one able to adjust an angle of the front wheel of a golf cart so as to enable it to run straightforward without being influenced by the topography of a golf course.
Generally, a golf cart has a front wheel and two rear wheels. The front wheel, as shown in
FIGS. 1 and 2
, includes a U-shaped support frame
20
and a front wheel
30
respectively fixedly assembled with a golf cart
10
. The front wheel
30
fitted between the two parallel rods of the support frame
20
is pivotally assembled with the support frame
20
for rotating by means of a threaded rod
301
inserted through the shaft holes of the support frame
20
and the front wheel
30
and then locked. However, after used for a period of time, the unadjustable front wheel is liable to become deflected and unable to keep running straightforward in case a golf course is uneven.
SUMMARY OF THE INVENTION
The objective of this invention is to offer a front wheel-adjusting device for a golf cart, able to adjust the front wheel of a golf cart and keep it running straightforward, regardless of the topography of a golf course.
The front wheel-adjusting device for a golf cart in the present invention includes a U-shaped support frame and a front wheel fitted between two parallel rods of the support frame. The two parallel rods of the support frame have their ends respectively formed with a hollow interior and bored with a vertical groove in the inner side. The front wheel has its shaft hole inserted with a shaft which has its opposite ends protruding out of the shaft hole and respectively bored with a through inner threaded hole. The shaft has its opposite ends respectively fitted with a fixing member which is bored with a slide groove in one side facing the front wheel and a lengthwise through hole aligned to the inner threaded hole of the shaft. Thus, the two fixing members are respectively fitted with the outer ends of the shaft, letting the opposite ends of the shaft respectively located in the slide grooves of the two fixing members. Then, a properly long threaded rod is inserted upward through the lengthwise through hole of the fixing member and the inner threaded hole of the shaft, and then extending out of the topside of the fixing member and screwed with a nut. Next, the two fixing members are respectively stuffed into the two parallel rods of the support frame and fixed therein by bolts, letting the opposite ends of the shaft respectively positioned in the vertical grooves of the two parallel rods of the support frame. Thus, the opposite ends of the shaft are able to move up and down vertically along the threaded rod to adjust the front wheel of a golf cart by turning around the threaded rod.
REFERENCES:
patent: 1548973 (1925-08-01), Beeler
patent: 2040121 (1936-05-01), Bowen
patent: 3462171 (1969-08-01), Mitty et al.
patent: 3618970 (1971-11-01), Frigaard
patent: 4403784 (1983-09-01), Gray
patent: 5029886 (1991-07-01), Takahashi et al.
patent: 5400469 (1995-03-01), Simonsen
patent: 5556116 (1996-09-01), Sloss et al.
patent: 6041584 (2000-03-01), Hohnl
patent: 6409190 (2002-06-01), Tsai
patent: 6416063 (2002-07-01), Stillinger et al.
patent: 6607201 (2003-08-01), Marshburn
patent: 6719319 (2004-04-01), Liao
Avery Bridget
Bacon & Thomas PLLC
Ellis Christopher P.
Unique Product & Design Co., Ltd.
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