Folding device for scooter

Details Folding device for scooter Folding device for scooter

2000-07-19

2002-05-21

Mai, Lanna (Department: 3619)

Land vehicles

Wheeled

Coasters

C280S087050, C403S098000

Reexamination Certificate

active

06390483

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a folding device for a scooter.
2. Description of the Related Art
A conventional scooter in accordance with the prior art shown in
FIGS. 1 and 2
comprises an elongated base plate
1
, a head tube
12
, a handlebar stem
13
, two side plates
10
each secured on the front end of the base plate
1
, and a support rod
14
having an upper end secured on the head tube
12
and a lower end pivotally mounted between the two side plates
10
. Each of the two side plates
10
defines a sector-shaped guide track
11
having a first end defining a first recess
111
and a second end defining a second recess
112
. A positioning axle
141
is mounted on the support rod
14
and is detachably received in the first recess
111
or the second recess
112
. A drive lever
142
is pivotally mounted on the support rod
14
for moving the positioning axle
141
between a first position where the positioning axle
141
is secured in the first recess
111
so that the support rod
14
is disposed in an upstanding manner, thereby fully expanding the scooter, and a second position where the positioning axle
141
is secured in the second recess
112
so that the support rod
14
is disposed in a horizontal manner, thereby folding the scooter.
However, the dimension of each of the first recess
111
and the second recess
112
is larger than the outer diameter of the positioning axle
141
so that the positioning axle
141
cannot be rigidly secured in the first recess
111
and the second recess
112
. In such a manner, the positioning axle
141
is easily detached from the first recess
111
due to a shock or vibration to unfold the scooter, thereby injuring the safety of the user.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a folding device for a scooter comprising: an elongated base plate, a head tube, a handlebar stem, a support rod mounted between the head tube and the base plate, and a support base mounted between the support rod and the base plate, wherein,
the support base includes a first side plate and a second side plate spaced from the first side plate, an arcuate slide track defined in the first side plate and having a first end defining a first insert hole and a second end defining a second insert hole, a first through hole defined in the first side plate, a first locking hole defined in the second side plate and aligning with the first insert hole, a second locking hole defined in the second side plate and aligning with the second insert hole, and a second through hole defined in the second side plate and aligning with the first through hole;
the support rod includes a bottom end provided with a transverse tube located between the first side plate and the second side plate and defining a receiving chamber located above the transverse tube for receiving therein a support tube which is rested between the first side plate and the second side plate;
a positioning axle extending through the first through hole of the first side plate, the transverse tube of the support rod, and the second through hole of the second side plate so that the support rod is pivotally mounted on the support base;
a pull rod slidably mounted in the support tube and having a first end provided with an outer thread extending outward from the slide track of the first side plate to be engaged with a pull knob which protrudes outward from the slide track of the first side plate and a second end provided with an enlarged head extending outward from the support tube and detachably received in the first locking hole or the second locking hole, and a spring mounted on the pull rod and biased between the pull knob and the enlarged head;
a guard plate mounted between the first side plate and the second side plate for supporting the support rod, the guard plate having a first side provided with a first axle and a second side provided with a second axle defining a screw hole;
a retaining piece defining an arcuate recess for retaining the support rod and having a first end pivotally mounted on the first axle and a second end defining a cut; and
a threaded insert rod extending through a guard pad and the cut of the retaining piece, and screwed into the screw hole of the second axle, and a positioning handle pivotally mounted on the insert rod.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.


REFERENCES:
patent: 5807007 (1998-09-01), Stemper
patent: 6053525 (2000-04-01), Lin
patent: 6120044 (2000-09-01), Tsai
patent: 6173976 (2001-01-01), Lee
patent: 6179307 (2001-01-01), Mao
patent: 6182988 (2001-02-01), Wu
patent: 6206387 (2001-03-01), Tsai
patent: 6217058 (2001-04-01), Wang et al.
patent: 6234501 (2001-05-01), Chen

Affiliated with

Also associated with

Rating

Folding device for scooter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Folding device for scooter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Folding device for scooter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2858097