Land vehicles – Wheeled – Running gear
Reexamination Certificate
2001-07-17
2002-10-29
Dickson, Paul N. (Department: 3616)
Land vehicles
Wheeled
Running gear
C280S124111, C280S124128
Reexamination Certificate
active
06471225
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a sand buggy. More particularly, the present invention relates to a sand buggy which has a good shock-absorbing function.
Referring to
FIGS. 1
to
5
, a conventional sand buggy
10
has a main frame
15
, a first front wheel
11
, a second front wheel
11
′, a first rear wheel
13
, a second rear wheel
13
′, a first front shock absorber
12
, a second front shock absorber
12
′, a rear shock absorber
14
, a rear wheel shaft
18
, a positioning seat
16
, a first suspension arm
17
, a second suspension arm
17
′, and a positioning mount
19
. The first suspension arm
17
is connected to the first front wheel
11
. The second suspension arm
17
′ is connected to the second front wheel
11
′. The positioning seat
16
is disposed on the main frame
15
. The positioning seat
16
is connected to the first front shock absorber
12
and the second front shock absorber
12
′. The first front shock absorber
12
is connected to the first suspension arm
17
. The second front shock absorber
12
′ is connected to the second suspension arm
17
′. The positioning mount
19
is disposed on the rear wheel shaft
18
. The rear shock absorber
14
is connected to the main frame
15
and the positioning mount
19
. However, the first front shock absorber
12
, the second front shock absorber
12
′, and the rear shock absorber
14
absorb a portion of shock only.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a sand buggy which has a good shock-absorbing result.
Accordingly, a sand buggy comprises a main frame, a front suspension mechanism, a first rear suspension gear, and a second rear suspension gear. A first connection rod is disposed on a front portion of the main frame. A second connection rod is disposed on the front portion of the main frame. The front suspension mechanism has a positioning seat, a movable mount, a suspension arm, a positioning plate, a first front shock absorber, and a second front shock absorber. The positioning seat is connected to the first connection rod and the second connection rod. The positioning seat has two lower rotating shafts. Each of the lower rotating shafts has an inner sleeve. The movable mount has two pairs of lug panels to receive the lower rotating shafts. An opening is formed between the positioning seat and the movable mount. The suspension arm passes through the opening. The suspension arm has a pair of first lug bars and a pair of second lug bars. A positioning plate is disposed on the front portion of the main frame and beneath the first connection rod and the second connection rod. The first front shock absorber is connected to the first lug bars and the positioning plate. The second front shock absorber is connected to the second lug bars and the positioning plate. The first rear suspension gear has a first positioning mount, a first movable seat, and a first suspension link. The first positioning mount is disposed on a first side of the main frame. The first movable seat is inserted in the first positioning mount. The first suspension link is connected to the first movable seat. A pair of first lug plates. are disposed on the first suspension link. The second rear suspension gear has a second positioning mount, a second movable seat, and a second suspension link. The second positioning mount is disposed on a second side of the main frame. The second movable seat is inserted in the second positioning mount. The second suspension link is connected to the second movable seat. A pair of a second lug plates are disposed on the second suspension link. A first rear shock absorber has a first lower end disposed between the first lug plates, and a first hollow upper end. A second rear shock absorber has a second lower end disposed between the second lug plates, and a second hollow upper end. A main shaft has a first distal end inserted in the first hollow upper end of the first rear shock absorber and a second distal end inserted in the second hollow upper end of the second rear shock absorber.
REFERENCES:
patent: RE29849 (1978-11-01), Quigniot
patent: 4705128 (1987-11-01), Krude
patent: 6279931 (2001-08-01), Kopczynski
Fleming Faye M.
Jenn Jianq Co. Ltd.
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