SU988637A1 - Children's tricycle - Google Patents

Description

(54) CHILDREN'S THREE-WHEELED BIKE

one

This invention relates to children's tricycles, which are transformable into a scooter and vice versa.

A children's scooter, transformable into a bicycle and vice versa, contains a frame mounted on wheels, a steering wheel and a bike attachment, including a seat tube with a saddle, a drive unit and a device for attaching the bike attachment to the frame of the scooter 1.

The disadvantage of this design is its complexity, since in order to convert a scooter into a bicycle it is necessary to have the above-mentioned bike attachment.

Closest to the present invention is a three-wheeled children's bicycle containing a frame made in the form of a pipe, the front end of which is rigidly connected to a hub hinged in a holder mounted on a front wheel fork and the rear end with a rear wheel fork 2.

Such a bike has a collapsible design for folding it, however, it cannot be converted into a scooter.

The purpose of the invention is the expansion of functional possibilities by ensuring the transformation of a bicycle into a scooter and vice versa.

This goal is achieved by the fact that in the bicycle the hub is mounted rotatably in the plane of the frame, made in the form of a cylinder, which is oriented across the frame and having two diametrically through holes arranged at an angle to each other through which the shaft is fixed to fix the position of chickpea

10 of the hub and its associated frame, the rear end of which is bent upwards and detachably connected to the rear fork.

In addition, the axis of the holes of the cylinder races. placed at an angle of 45-75 ° to each other (5 with a bend angle of the rear end of the frame equal to 105-135 °.

FIG. 1 shows a bicycle, side view; in fig. 2 - the same, top view; in fig. 3 - scooter, side view; in fig. 4 — front wheel fork interface

20 with a frame.

Children's tricycle collapsible design contains the frame 1 in the form of a pipe, the front end of which, by means of the hub 2 is pivotally connected by a king pin 3

with swiveling fork 4 front wheels 5 unpowered steering wheel; 6. The rear end of the frame 1 is connected by means of bolts with a fork 7 of the rear wheels 8, carrying the axle 9 of the rear wheels 8 and a lock 10 rigidly fixed with screws on the axis 9. The saddle 11 is installed in place of the detachable connection of the frame 1 and the fork 7 of the rear wheels 8.

Said hub 2 is made in a cylinder, the forming of which is oriented across the frame and having two through diametral openings 12 and 13, the axes of which are at an angle of 45-75 ° to each other. The pivot 3, which hinges the hub 2 of the frame 1 to the holder 14 of the swivel plug 4 (Fig. 4), is omitted into the hole 12. Hole 13 is also intended for king pin 3 when converting a bicycle to a scooter (Fig. 3).

The rear end 15 of the frame 1 is bent upward at an angle of 105-135 °.

Bike conversion. The scooter is manufactured as follows.

The parts used to assemble the scooter are removed from the bike: frame 1 with hub 2, stud 3, swivel fork 4 with steering wheel b, both rear wheels 8 and foot rest 10, as well as fasteners.

To assemble a samokit, an additional fork 16 of the rear wheel of the scooter is assembled with the rear wheel axle 17 and the braking device 18. angle upward, the rear end 15 of frame 1 takes a horizontal position in the assembled state or close to it. Then, the rear end 15 of the frame 1 is connected with a front end 19 of the fork 16 of the scooter and a step 10 is installed.

After installing the wheels 8 scooter ready for use.

The proposed bicycle design makes it possible to extend its functionality by transforming it into a scooter, using a number of bicycle parts for this purpose.

Claims (2)

Invention Formula . A children's tricycle containing a frame made in the form of a trug, the front end of which is rigidly connected to a hub, hingedly mounted & the holder mounted on the front wheel fork and the rear end with the rear wheel fork, characterized in that, in order to expand the functionality by ensuring the bike transforms into a scooter and vice versa, the hub is installed with the possibility of rotation in the plane of the frame, made in the form of a cylinder which forms is oriented across the frame and having two diametrically through holes arranged at an angle to each other in the walls through which the pin is passed to fix the position of said st Itza and its associated frame, the rear end of which is bent upwards and is made detachably connected to the rear fork. 2. A bicycle according to claim 1, characterized in that the axes of the cylinder bores are at an angle of 45-75 ° to each other with a bend angle of the rear end of the frame equal to 105-135 °. Information sources, taken into account in the examination 1. USSR Author's Certificate No. 831657, cl. In 62 D 9/02, 1979. 2.Patent of France No. 2341478, cl. In 62 K 5/04, 1977 (prototype).