RU17510U1 - FOLDING MINI BIKE - Google Patents

Abstract

Folding mini-bike, consisting of a frame, steering gear fixed on the front of the frame and including a front fork with a wheel, a steering wheel and a rear suspension pendulum, including a power unit consisting of a rear wheel with a drive to it, an engine and a system exhaust gas, seat and fuel tank, characterized in that the frame is folding, consisting of a front part made of two parallel pipes, between which there is a footrest, and a rear part made of pipes, surrounding the power unit and forming the seat frame; the fuel tank is structurally recessed in the seat, the steering wheel is made in the form of a lyre with an elongated lower part and is equipped with a bracket for adjusting the angle of the steering wheel and a hinge-lock, which ensures folding of the frame by tilting its front part to the seat in the vertical plane of the minibike axis and fixing the frame parts in working or in a folded position.

Description

Minibike folding

The utility model relates to motorcycle construction, namely, to the field of minibikes, i.e. small motorcycles on miniature wheels, which are full-fledged motorcycles in miniature.

The folding mini-bike Di Blazi Taxi R7 is widely known. It has a folding frame made in the form of a parallelogram, the rear of which, together with the engine, is capable of “approaching the front wheel. (Catalog "World of Motorcycles, issue 4, p. 40, M:" Driving, 1999)

Also known for folding motorbike MOTOR SAM. The power unit is a single-cylinder two-stroke engine Franco Morini, with automatic centrifugal clutch and without gearbox. The machine on tiny wheels has stiffer suspension and weighs only 22 kg. A minibike can be folded in parallel with the steering wheel and seat frame, and in this form it is stored and transported. (Catalog "World of Motorcycles, issue 4, p. 97, M;" Driving, 1999)

Famous minibikes are characterized by a very dense, even by motorcycle standards, layout and use of a spinal frame with an engine suspended from below.

The closest to the claimed utility model in technical essence is a minibike (application for PM "Minibike No.2000125206 from 10/11/2000 IPC: B 62 K 11/00), presented in figure 4.

The minibike frame is made of a pipe bent in the form of a trapezoid, the front short-stroke fork is filled with a shortened one with an increased departure angle, the gas tank is placed on the frame, the engine is installed inside the frame in its lower part, and two footboards are fixed on the frame under the engine, the seat is mounted on the frame with the possibility of adjusting its height and offset from the rear wheel to the middle of the frame.

Dimensions minibike - the closest analogue: length - 1200 mm, height 500 mm. Weight - 27 kg.

Significant disadvantages of the known models include the incompatibility of small sizes with ergonomic requirements, or the inconvenience of storage and transportation.

The objective of the claimed utility model is to create a folding minibike with improved ergonomic indicators for an adult and reduced overall dimensions during storage and transportation.

IPC: B 62K 11/00

In FIG. 1 shows a right view of the minibike in the working position. Figure 2 shows the right side view of the minibike in the folded position. Fig. 3 shows the steering wheel of a minibike.

The problem is solved as follows.

The proposed model of a minibike has a folding tubular frame 1, a steering gear mounted on the front of the frame and including a front fork 2 with a wheel 3, a steering wheel 4, made in the form of a lyre with an elongated lower part and fixed in the bracket 5 with the possibility of regulation and fixing the angle the tilt of the steering wheel with respect to the front fork, and the pendulum of the rear suspension 6. including a power unit consisting of a rear wheel 3 with a drive on it, an engine 7 and an exhaust system 8, a seat 9 with a fuel tank structurally recessed into it 10 th.

Folding frame 1 consists of a front part made of two parallel pipes, between which there is a platform for legs 11, and a rear part made of pipes, surrounding the power unit and forming the seat frame 9; hinge-lock 12, providing folding the frame by tipping its front on the seat in the vertical plane of the axis of the minibike and rigidly fixing the parts of the frame in the working or folded position.

In contrast to the prototype, the claimed design of the frame provides small overall dimensions of the minibus when folded and allows it to be stored in small rooms and easily transported in elevators and luggage racks of cars, and the presence in the claimed design of a flat platform for the location and support of legs and the ability to set the optimal one for the driver adjustable steering wheel angle provide improved ergonomic indicators of minibike.

Details of the frame, steering mechanism and pendulum of the rear suspension of the inventive minibike can be made, for example, from a steel thin-walled pipe with a diameter of 30 ... 40 mm, an engine of type D 16 can be used as an engine, and wheels of type 3.50-5 model can be used as wheels B-25.

The optimal dimensions of a minibike of the claimed design, due to ergonomic requirements and operating conditions and storage of a minibike, can be, for example, the following:

- in working condition: length - 1500 mm, height on a saddle - 650 mm;

- when folded: length - 650 mm, height -1000 mm. The estimated dry weight of the structure is 27 kg.

Minibike can be manufactured in an industrial environment using standard equipment, well-known materials, technologies and components and assemblies.

Claims (1)

Folding mini-bike, consisting of a frame, steering gear fixed on the front of the frame and including a front fork with a wheel, a steering wheel and a rear suspension pendulum, including a power unit consisting of a rear wheel with a drive to it, an engine and a system exhaust gas, seat and fuel tank, characterized in that the frame is folding, consisting of a front part made of two parallel pipes, between which there is a footrest, and a rear part made of pipes, surrounding the power unit and forming the seat frame; the fuel tank is structurally recessed in the seat, the steering wheel is made in the form of a lyre with an elongated lower part and is equipped with a bracket for adjusting the angle of the steering wheel and a hinge-lock, which ensures folding of the frame by tilting its front part to the seat in the vertical plane of the minibike axis and fixing the frame parts in working or in a folded position.