# Patent

## Title
Scooter

## Abstract

A scooter is described with a chassis which has a guide bearing for a steering column holding the front wheel and a supporting arm, which has a seat, for a pivotable footboard which is provided with a rear wheel. In order to achieve simple readjustment to a training bike, it is proposed that the supporting arm which is connected to the footboard is coupled to the guide bearing so as to be pivotable about an axis running through the center point of the rear wheel.

## Background
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a national phase application of PCT Application No. PCT/AT/2012/000317 filed Dec. 12, 2012, which claims priority to Austrian Patent Application No. A 50019/2011 filed Dec. 22, 2011.
BACKGROUND AND SUMMARY
The invention relates to a scooter comprising a chassis which has a guide bearing for a steering column holding the front wheel and a supporting arm, which includes a seat, for a pivotable footboard which is provided with a rear wheel.
Known scooters comprise a chassis which substantially has a guide bearing for a steering column holding the front wheel and footboard provided with a rear wheel, which is either rigidly connected to the guide bearing or is coupled to same so as to be pivotable from a locked usage position into a transport position. For equipping scooters of this type with a seat it has already been proposed to fix a seat to the supporting arm that connects the footboard with the guide bearing. However, on the one hand this involves additional constructional measures, on the other hand the use of the scooter in a standing position is limited.
The invention is therefore based on the object to configure a scooter of the above-described type with comparatively simple constructional means such that it may optionally be used with the seat, without affecting the use of the scooter with a footrest on the footboard.
The object is achieved by the invention in that the supporting arm connected to the footboard is coupled to the guide bearing so as to be pivotable about an axis that extends through the center of the rear wheel.
These measures yield two possible usage positions for the chassis portion, which is formed by the supporting arm and the footboard, relative to the guide bearing and the steering column. As this chassis portion is pivoted by 180° about an axis for those two usage positions, the axis extending through the center of the rear wheel, the rear wheel adopts a corresponding position of use in both usage positions, which represents a constructional requirement for a consistent handling of the scooter in those two usage positions owing to a corresponding wheelbase.
In the position when used as a conventional scooter, the footboard runs substantially parallel to the road surface, so that the foot can be placed on the footboard in the usual manner. Upon a 180° rotation of the supporting arm for the footboard, the footboard projects upwardly from the rear wheel and supports the supporting arm, on which the seat is provided, now projecting rearwardly from the steering column. For positioning the seat, the supporting arm may be mounted to be rotatable about its axis. Particularly favorable constructional conditions are obtained, however, if the seat is arranged on the side of the supporting arm that faces away from the footboard. The scooter can thus serve as a training bicycle for a user sitting on same, whereby the legs can be pushed off from the ground laterally beside the supporting arm of the chassis, namely without being obstructed by the footboard.
The chassis portion formed by the supporting arm and the footboard can be locked in the two usage positions relative to the guide bearing by means of a locking device, e.g. a locking pin or a clamping screw. To this end, the locking device is to be configured such that an unintended unlocking during the use of the scooter is prevented.
Particularly advantageous constructional conditions are obtained if the supporting arm and the footboard enclose the same angle with the pivot axis. Thus, it is ensured that the footboard and the supporting arm have an approximately identical length, thereby guaranteeing advantageous use conditions, especially if it is considered that the pivot bearing for the supporting arm is preferably provided on the guide bearing for the steering column at a ground clearance that is adapted to the height of the seat.
Although the chassis portion formed of the supporting arm and the footboard is mounted about a pivot axis extending through the center of the rear wheel it is possible to configure the scooter collapsible for the transport thereof if the footboard is mounted on the supporting arm to be pivotable about an axis parallel to the rear wheel axle from a locked usage position into a transport position. If, in the usage position as an ordinary scooter, the footboard is pivoted towards the supporting arm the rear wheel is placed against the supporting arm in the region of the pivot bearing for the supporting arm, resulting in a compact transport position.



BRIEF DESCRIPTION OF THE DRAWINGS
The subject matter of the invention is illustrated in the drawing.
FIG. 1 shows a simplified lateral view of a scooter according to the invention,
FIG. 2 shows an illustration of the scooter corresponding to FIG. 1, but in the position used as a training bicycle, and
FIG. 3 is a cross-section taken along line 3-3 of FIG. 2A or FIG. 2B;



DETAILED DESCRIPTION
The scooter according to the illustrated embodiment comprises a chassis 1 which has a guide bearing 2 for a steering column 4 holding a front wheel 3 and a supporting arm 5 for a footboard 7 which is provided with a rear wheel 6. A cover for the rear wheel 8 may, according to FIG. 1, be used in a conventional manner as a braking device. To improve the non-slip safety, the footboard 7 may be provided with a foot layer 9 which prevents the foot from slipping off the footboard 7.
The supporting arm 5 is coupled, in a pivotably adjustable manner, to the guide bearing 2 about an axis 10 extending through the center of the rear wheel 6. The pivoting adjustment about the pivot axis 10 allows to pivot the chassis portion, formed of supporting arm 5 and footboard 7, by 180° from a position for the usage of the footboard, as shown in FIG. 1, into a position in which a seat 11 may be used, as shown in FIG. 2, the seat being provided on the side of the supporting arm 5 facing away from the footboard 7. A user sitting on the seat 11 can thus use the scooter as a training bicycle by pushing his legs off from the road surface on both sides of the supporting arm 5. The footboard 7 projecting upwardly from the rear wheel 6 as a result of the 180° rotation does not obstruct the leg movement of the user of the training bicycle. As can be learned from the comparison of FIG. 1 and FIG. 2 the rear wheel 6 maintains its position in both usage positions of the scooter, so that the wheelbase is not changed and corresponding driving and steering properties are ensured for both usage positions. By a ground clearance of the pivot bearing 12 of the supporting arm 5 on the guide bearing 2 in correspondence with the height of the seat it is possible to predetermine particularly advantageous constructional conditions as, in this case, the supporting arm 5 with the seat 11 can extend approximately parallel to the road surface.
A stable handling of the scooter requires the locking of the chassis 1 in both usage positions. To this end, the pivot bearing 12 for the supporting arm 5 may be provided with a locking device 13, e.g. an ordinary lock pin. The actuating mechanism of the locking device 13 may ensure in a conventional manner that an unintended unlocking during the use of the scooter is excluded.
As can be seen in FIG. 3, it is possible despite the coupling of the supporting arm 5 on the guide bearing 2 about an axis 10 extending through the rear wheel axle to obtain a collapsed transport position for the scooter. To this end, a joint 14 may be provided between the supporting arm 5 and the footboard 7, which can be locked at least in the usage positions of the scooter. Upon releasing the locking mechanism the footboard 7 may be pivoted towards the supporting arm 5 until the rear wheel 6 rests against the supporting arm 5. Depending on the pivoted position of the supporting arm 5 on the pivot bearing 12 different transport positions become possible. One thereof is shown in FIG. 3.

## Claims

1. A scooter comprising:
a guide bearing for a steering column which holds a front wheel; and
a chassis including:
a footboard having a rear wheel, and
a supporting arm including a seat and connected to the footboard, the footboard being pivotable, the supporting arm being mounted to the guide bearing and being rotatable about an axis that extends through a center of the rear wheel.

2. A scooter according to claim 1, wherein the footboard is pivotable about an axis extending parallel to an axle of the rear wheel to transition between a usage position and a transport position.

3. A scooter according to claim 1, wherein the seat is provided on a surface of the supporting arm which is opposite to a side on which the supporting arm is connected to the footboard.

4. A scooter according to claim 3, wherein the footboard is pivotable about an axis extending parallel to an axle of the rear wheel to transition between a usage position and a transport position.

5. A scooter according to claim 1, wherein both the supporting arm and the footboard enclose a same angle with respect to the pivot axis.

6. A scooter according to claim 5, wherein the footboard is pivotable about an axis extending parallel to an axle of the rear wheel to transition between a usage position and a transport position.

7. A scooter according to claim 1, wherein footboard is pivotable relative to the supporting arm.