Front tube pressing device of scooter

Details Front tube pressing device of scooter Front tube pressing device of scooter

2001-04-06

2002-11-19

Hartmann, Gary S. (Department: 3671)

Joints and connections

Articulated members

Lockable at fixed position

C403S368000, C403S374100, C403S374200, C403S374500, C403S409100, C403SDIG004, C016S900000, C280S087021, C280S087050

Reexamination Certificate

active

06481913

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates generally to a scooter, and more particularly to a front tube pressing device of the scoter to prevent the handlebar of the scooter from swaying.
BACKGROUND OF THE INVENTION
As shown in
FIG. 1
, a prior art scooter
1
comprises a folding mechanism
50
which is pivotally disposed between a front tube
32
of a handlebar
30
and a footboard
93
. The handlebar
30
is apt to sway at the time when the scooter
90
is in operation. In order to provide a remedial measure, two upright plates
51
and
52
of the folding mechanism
50
are connected at the front end with a connection piece
95
which is provided with a threaded hole
96
and a fastening bolt
97
engaging the threaded hole
96
. The tail end of the fastening bolt
97
presses against the front tube
32
of the handlebar
30
so as to prevent the handlebar
30
from swaying, as shown in FIG.
2
. Such a remedial measure as described above is defective in design in that the fastening bolt
97
must be fastened securely each time when the scooter
90
is in operation, and that the frequent action of fastening the fastening bolt
97
often results in the wear of the threaded hole
96
and the fastening bolt
97
, and further that the rotation of the fastening bolt
97
causes the wear of the surface of the front tube
32
by mechanical friction.
SUMMARY OF THE INVENTION
It is the primary objective of the present invention to provide a scooter with a front tube pressing device which is easy to use to stabilize the front tube and the folding mechanism.
It is another objective of the present invention to provide a scooter front tube pressing device which does not undermine the external appearance of the scooter.
The pressing device of the present invention comprises a shaft rod, two clamping members, one wrenching rod, one lashing collar, and a nut. The device of the present invention is pivotally fastened between a scooter front tube and a folding mechanism of the scooter. In operation, the wrenching rod is kept in the fastening state such that the two clamping members of the pressing device hold and push the press member of the shaft rod of the device toward the front tube of the scooter. As a result, the front tube of the scooter is securely pressed against by the press member, so as to prevent the handlebar of the scooter from swaying at such time when the scooter is in operation.


REFERENCES:
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patent: 4089382 (1978-05-01), Pessier
patent: 4464076 (1984-08-01), Leibhard
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patent: 6301749 (2001-10-01), Chen
patent: 6332621 (2001-12-01), Wu
patent: 6390483 (2002-05-01), Hsu et al.
patent: 100 33 450 (2002-01-01), None
patent: 2 364 739 (2002-02-01), None

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