Land vehicles – Wheeled – Coasters
Reexamination Certificate
2000-10-26
2002-11-26
Johnson, Brian L. (Department: 3618)
Land vehicles
Wheeled
Coasters
C280S282000
Reexamination Certificate
active
06485039
ABSTRACT:
BACKGROUND OF INVENTION
1. Field of the Invention
The present invention is related to a skate board device, especially to a swingable skate board device with a limited swinging angle. In which, its open and close swinging movements can be totally controlled by the user's mind with good stability and excellent safety.
2. Description of the Prior Art
The outdoor exercises are quite popular in nowadays society. Many devices related to exercising or recreational activities were invented. The skate board device is very popular for most people in these years, especially for the youth. The earlier skate board is designed as a single pedal plate type. Now, the most fashionable skate board device is the swingable two pedal plate type. The major attraction includes its technical requirement for driving it and its feeling of high speed during skating. However, safety still is the most important factor that a designer will consider to. For the conventional swingable skate board device, many youths are hurt during skating. One reason is that the handling skill is not good. The other reason is that the design of the swingable skate board device is improper.
As shown in
FIG. 3
, the conventional swingable skate board device mainly comprises two handles
11
, a handle supporting rod
13
, a turning section
15
, two pedal plates
17
and two rear wheels
19
.
The handles
11
are horizontally extended from a top end of the handle supporting rod
13
. The turning section
15
is fixed on the handle supporting rod
13
. By means of ball bearings (not shown) and fastening elements (not shown), two frame rods
21
of the pedal plates
17
can be simultaneously rotated with the turning section
17
. A spring
23
is set between these two frame rods
21
. So, when these two pedal plates
17
swing outward, this spring
17
will draw them back. Thus, repeated open and close swinging movements can be created. That is, the user can drive this conventional swingable skate board device moving. Although this convention device can achieve the purpose of recreational exercise, it still has the following disadvantages.
1. The open/close swinging movements are created by the frame rod
21
, the turning section
15
, and the spring
23
. Such open/close movements are repeated and continuous. Because the spring
23
will compulsively draw these two pedal plates
17
inward, it is hard to maintain these pedal plates
17
in an open state. In case the user wants to bypass a hole or a block on the road, it is very difficult for the user to maintain such open state. Thus, without such bypassing the hole or the block, the user might be dropped or injured.
2. The open/close swinging movements are created by the frame rod
21
, the turning section
15
, and the spring
23
. It can achieve the purpose of moving forward. But, except the spring
23
, there is no any element for limiting the swinging angle between these two frame rods
21
. If the spring
23
is failed due to mechanical fatigue, these two pedal plates
17
might open to an uncontrollable state. This will lead to another dangerous condition for the user.
SUMMARY OF THE INVENTION
The primary object of the present invention is to provide a swingable skate board device with a limited swinging angle. It can be totally controlled by the user's mind with good stability and excellent safety.
The second object of the present invention is to provide a swingable skate board device with a limited swinging angle. Under a simple operation, the user can use his/her feet to easily control the open/close swinging movements of the pedal plates. Thus, it is more technical and more challenging for a professional skater or user.
REFERENCES:
patent: 4065146 (1977-12-01), Denzer
patent: 4088338 (1978-05-01), Winchell et al.
patent: 4114235 (1978-09-01), Remington
patent: 4540192 (1985-09-01), Shelton
patent: 4799702 (1989-01-01), Wang
patent: 4805737 (1989-02-01), Peng
patent: 5039121 (1991-08-01), Holter
patent: 5388659 (1995-02-01), Pepe
patent: 5511444 (1996-04-01), Clausen et al.
patent: 5785331 (1998-07-01), Rappaport
patent: 5954349 (1999-09-01), Rutzel
patent: 05085451 (1993-04-01), None
patent: 06135368 (1994-05-01), None
Bacon & Thomas PLLC
Campbell Kelly E
Johnson Brian L.
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