HU220140B - Collapsible bicycle - Google Patents

Abstract

The present invention is a novel type of collapsible bicycle characterized by the following features: The lower skeletal structure (1) connecting the two wheels can be folded between the beam rod (3) and the upper crossbar (2), while the two wheels (5) are directly behind each other, and the adjustable saddle stem (10) can be folded away from the saddle stop (14) adjacent to the collapsed guide rod (4). The harrow (4), the pedals (12) can be folded up / down. The new type of collapsible bicycle can be folded / unlocked by 5-10 m from the self-reinforcing frame structure. Due to the small space requirement of the bicycle, it can be easily transported on public transport vehicles, in the tub carrier of a passenger car, and even on a shopping trolley. The bicycle accessories are compliant with traffic safety regulations. ŕ

Description

BACKGROUND OF THE INVENTION The present invention relates to a folding bicycle having a frame consisting of a lower main frame structure connecting the two wheels, an upper link arm hinged thereto, and a lower link frame structure hinged to the steering link via a hinged sleeve.

U.S. Patent No. 4,718,688 also discloses a folding bicycle having a frame consisting of a lower main frame structure joining the two wheels, an upper pivot joint to which it is attached, and a lower main frame structure connected via a pivoting sleeve.

The saddle placement of the invention disclosed in the document does not allow for sufficient position and height variation of the saddle as it is secured to the upper crosspiece via a fastener. Bicycle pedal and handlebars Standing out of the folded bicycle makes it difficult to position the bicycle and can cause injury when moving. The wheel size of the bicycle is also very large, which is compensated by folding the wheels side by side when folding in the solution described in the US document. Aligning and securing the wheels side by side requires assembly work, which is cumbersome and lengthy.

It is an object of the present invention to overcome the above-mentioned drawbacks.

The present invention thus relates to a folding bicycle having a frame consisting of a lower main frame connecting the two wheels, an upper link arm hinged thereto, an articulated steering link, and a lower frame structure hinged to the steering link via a pivoting sleeve and a lower link pivot and its position is determined by a saddle stem stop on the upper cross member.

It is advantageous to have a folding or flip pedal.

It is likewise advantageous for the folding bicycle to have a hinged / foldable hinge.

Also preferred is a folding bicycle with a diameter of less than 35 cm.

Another advantage is the folding bicycle, which has a full pedal revolution with at least 2.5 meters of travel on the rear wheel.

Figure 1 is a side view of a folding bicycle according to the invention.

The frame of the bicycle consists of a lower frame 1 connecting the two wheels 5, an upper link 2 with a joint 8 and a steering rod 3 connected to it 8, and the lower frame 1 is connected to the steering link 3 via an articulated bushing. The movement of the articulated bushing 7 is limited by a lower stop 15 mounted on the handlebar 3 above the first fork 6. The folding bicycle has a height adjustable saddle 13 which is secured to the saddle shank 10. At the lower end point of the adjustable saddle stem 10 it is hinged to the lower main frame structure 1 and its position is determined by a stop 14 of the saddle stem 14 on the upper cross member 2. The folding bicycle is driven by pedals 12 via an all sprocket. All sprockets and sprockets 11 are mounted on the lower frame structure 1.

The horn 4 is connected to the handlebar 3 above the hinge 8. The steering horn 4 is preferably folded up / down or folded to fold the bicycle. The pedal 12 is preferably of a foldable / fold-down design. Choosing the diameter of the 5 wheels to be smaller than 35 cm provides a practical storage folding bike.

When folding the bicycle, raise the front end 5 of the lower frame 1 towards the stop. During lifting, the front and rear wheels 5 approach one another and then almost touch when the folded bicycle is automatically locked in a known manner. The pedal 12 and the 4 horns can be further lowered / folded to reduce the space required for the bicycle.

After opening the latch, the folded bicycle automatically opens due to the weight of the lower frame 1. Only the 4 rudder horns and the pedals need to be adjusted to the travel position.

Folding this bike is extremely easy and quick. The collapsed state is locked automatically. The big advantage is the small size of the wheel, which can be found in the way it is folded and the bike is positioned. Folding the bicycle is only faster than opening, as it is done by the weight of the bicycle after the latch has been opened.

The invention is particularly useful for motorists, since many pieces can be easily placed in the trunk.

Its use is also advantageous for complementing public transport, as it can be transported as hand luggage on vehicles.

It is easy to store in apartments, all the more so as it can be transported in an elevator.

Claims (5)

PATENT CLAIMS A folding bicycle having a frame consisting of a lower main frame structure (1) connecting the two wheels (5), an upper cross member (2) attached to a joint (8), a steering rod (3) connected to a joint (8), and a lower main frame structure (1) ) is connected to the handlebar (3) via an articulated bushing (7) and has an adjustable saddle stem (10), characterized in that it is connected to the lower main frame structure (1) by a hinge (9) at the lower end point of the adjustable saddle stem (10). defined by a saddle stem stop (14) on the upper cross member (2). Folding bicycle according to Claim 1, characterized in that the lower main body (1) has a pedal or a hinged pedal. Folding bicycle according to claim 1 or 2, characterized in that the steering wheel (3) EN 220 140 Β has a hinged down / up and down horn (4). Folding bicycle according to claim 1, 2 or 3, characterized in that its wheels (5) have a maximum diameter of 35 cm. 5 Folding bicycle according to claims 1, 2, 3, 4, characterized in that the rear wheel (5) has at least 2.5 m of travel on one complete revolution of its pedal (12).