LV10941B - Elongated bycicle - Google Patents

Abstract

The proposed bicycle frame is extended with an additional insertion under which is fixed a telescopically adjustable bracket. Fixed at the end of the bracket is the larger driving double cogwheel with additional left side chain driving section. This is necessary in order to produce a bicycle with possible higher gearing, which is very useful for bicycling in headwind and on mountain roads, as well as in order to shorten chain section and simplify shifting of the gear lever. Apart from that, a comfortable seat with an adjustable backrest is placed directly on the frame of the bicycle. The proposed construction can be used for bicycles (fig.1) as well as for tricycle and four-wheel vehicles.<IMAGE>

Description

Description of the Invention Extended Bicycle

The invention relates to the construction of bicycles. Its prototype is USSR patent no. 1717454, SKI В 62 Μ I / 00. The main criticism of this patent is that the large towing gear bracket must never be rigidly attached to the frame above the front wheel, as the chain will be thrown off the gears when driving and turning the steering wheel. The rider's feet should not be above the seat in the air, as it is very tiring.

The following table compares the prototype with the proposed technical solution. Frame, wheels, backrest, steering wheel, large traction gear, small gear, right-hand drive, as well as chain retractor and gearshift are all common to both.

Table 1

Source of information Frame insert with bracket Large additional pulling double gear Drive link for the left hand chain Frame mounted above the front wheel Prototype are not are not are not is a Extended is a is a is a is a

bicycle

Clarification of the Invention. The folding bicycle frame / 5 / has been extended (fig.1) with an additional insert / 1 /, equipped with a telescopically adjustable bracket, to provide the rider with a safe, comfortable, easy and comfortable ride as well as for maximum comfort even on long distances. 2 /, mounted at the end of the bracket with an additional /fig.2/ large towing double gear / 3 / with a left-hand drive section / 10 /, and further via a double-gear / 14 / which is kinematically linked to the right-hand drive section / 12 / and big double gear / 11 / with the help of chain / 12 / drive the small gear unit / 9 / on the rear drive wheel / 13 /. In addition, the frame / 5 / is equipped with shock-absorbing springs / 6 /, above which is a soft seat / 7 / with adjustable backrest / 8 /, which is also attached to the frame / 5 / seat bar. Both chain links are equipped with chain retractors and speed shifters, the slotted extension / 1 / is made of a tube with a tip that fits snugly into the frame tube to ensure secure locking. To comply with this requirement, the joint flanges are welded below. Below the pipe is a pipe in the form of a bracket attached to one flange. The end of this pipe is the pipe · pipe. At the end of the smallest tube is a center diameter hub of perpendicular welded diameter, which is fitted with a large double pedal shaft bearing. The large double pinion of the towing bracket can be telescopically adjusted longitudinally, adjusting it to the rider's height as needed, and can be centered radially in the plane of the driven gear. This telescopic joint is securely fixed with a ring puller. The brakes are fitted on both the rear and front wheels. The seat is also designed to carry a passenger. Just like the footrests, the boot is fitted - both at the rear and above the front wheel. The only drawback is that the weight is slightly higher than on regular bikes. The weight is successfully compensated by shifting to lower gears on difficult road sections. The extended bike is particularly well suited for long distances. You do not feel tired when sitting in a soft seat with a backrest. The bicycle is easy to put into production because it contains standard bicycle parts.

Claims (1)

A bicycle comprising a frame / 5 / with a seat / 7 /, wheels / 4,13 /, a chain drive consisting of a large traction sheave / 11 / and a small rack / 9 /, characterized in that: frame / 5 / is made with an additional insert / 1 / which has a telescoping adjustable bracket / 2 /, attached to the bracket / 2 / an additional pulling pinion / 3 / with a left-hand chain drive section / 10 /, a double pinion / 14 / is kinematically linked to the right-hand drive section / 12 / and the large double gear / 11 /, the chain / 12 / to drive the small gear unit / 9 / to the rear drive wheel / 13 /, in addition to the frame / 5 / 6 / and a soft seat above / 7 / with adjustable backrest / 8 / mounted on a frame / 5 /.