Hybrid motorcycle chassis

Abstract

The present invention relates to a hybrid motorcycle chassis (10) comprising pipe profiles (11) and connecting pieces (12) that form the load-bearing element of the motorcycle, and making chassis (10) lighter and more rigid.

Description

[0001] DESCRIPTION

[0002] Hybrid motorcycle chassis

[0003] FIELD OF THE INVENTION

[0004] The present invention generally relates to the method of manufacturing motorcycles.

[0005] In particular, the present invention relates to a hybrid motorcycle chassis that enables the motorcycle frame, which serves as the load-bearing element of the motorcycle, to be both lighter and more rigid.

[0006] STATE OF THE ART

[0007] Today, one of the most popular types of motor vehicles used for transportation is motorcycles. Motorcycles are mostly two-wheeled, but three-wheeled models also exist. Motorcycles are often preferred over other vehicles, primarily cars, due to their smaller size and lower cost.

[0008] Especially following the COVID-19 pandemic, motorcycle use has become increasingly widespread in our country as well as worldwide, driven by the growth of courier services and the time and fuel savings they provide to users. Essential considerations for this increasingly popular vehicle include low fuel consumption, lightweight design, and chassis durability. A motorcycle chassis (skeletal system or frame) is a load-bearing structure that is always subject to fatigue damage after prolonged operation. The fatigue life of the chassis determines the motorcycle's lifespan. The loads acting on a motorcycle frame are primarily^ the static weight of the rider and passenger, the static weight of the engine, transmission, and other accessories, as well as dynamic loads caused by road irregularities, mechanical vibrations, and those acting during acceleration and deceleration.

[0009] The defining characteristics of a motorcycle are a high power-to-weight ratio, low fuel consumption, and agility (primarily achieved through a slim body shape).Therefore, lightness is a desirable feature of a motorcycle. To achieve this, lighter metal alloys such as aluminum are used in the construction of motorcycle chassis. The motorcycle chassis is the structure that supports key components of the motorcycle, including the engine, transmission, front and rear shock absorbers, steering fork, fuel tank, seat. To achieve precise steering, the motorcycle chassis must offer sufficient resistance to bending and turning, ensuring the steering axis remains in the same plane as the rear wheel, regardless of loads from the transmission, bumps, cornering, and acceleration / braking. Good road handling also means less rider fatigue, as the effort required to ride the motorcycle is minimal. The chassis has both static and dynamic functions. The static function involves supporting the weight of the rider, engine, transmission, and all other necessary accessories such as fuel and oil tanks. In terms of dynamic functionality, the chassis must work in harmony with the rotating motorcycle parts, providing precise steering, good road holding, and comfort.

[0010] Motorcycle chassis in the state of the art are generally manufactured from steel and aluminum materials. Chassis made from steel and aluminum are heavy. The heavier chassis typically leads to increased fuel consumption, longer acceleration times, reduced top speed, increased production costs, and various other problems. In addition, a motorcycle chassis is produced from composite materials in a monoblock structure. However, the production of these chassis is a problematic and expensive method because it requires special mold manufacturing, and even the most minor dimensional change in the chassis necessitates the manufacture of a new mold.

[0011] The document numbered EP2025588B1, found in the known state of the art, refers to a motorcycle chassis and a motorcycle manufactured using that chassis. This document shows that pipes are used as the chassis for the motorcycle. However, the material structure of the pipes used here is not mentioned, and the pipes are joined together by welding or with connecting elements.

[0012] Document numbered CN204489059U describes a combination pipe and plate type multi-purpose custom motorcycle chassis. This document indicates that the motorcycle chassis is constructed from tubing. However, the material structure ofthe pipes mentioned here is not specified, and the pipes are joined together by welding or with connecting elements.

[0013] As a result, developments are made in practices related to the motorcycle chassis; therefore, new configurations are required to eliminate aforementioned disadvantages and bring a solution to current systems.

[0014] OBJECT OF THE INVENTION

[0015] The present invention relates to a motorcycle chassis that fulfils the aforementioned requirements, eliminate all disadvantages, and provides some additional advantages.

[0016] The primary objective of the present invention is to produce a motorcycle chassis that is lightweight, more rigid, easy to manufacture, and cost-effective, without requiring specialized molds.

[0017] One object of the present invention is to reduce fuel consumption, shorten acceleration times, and increase maximum speed by making the motorcycle chassis lightweight.

[0018] The present invention, designed to realize all the advantages mentioned above and which will be understood from the detailed explanation below, is a chassis used in the production of motorcycles that ensures the motorcycle chassis is lightweight and rigid;

[0019] • pipe profiles made of composite material, forming the load-bearing part of the chassis,

[0020] • connecting pieces that hold the pipe profiles together to form the chassis, having profile channels where the pipe profiles are interfaced.

[0021] The structural and characteristic features of the present invention will be understood clearly by the following drawings and the detailed description made with reference to these drawings. Therefore, the evaluation shall be made by taking these figures and the detailed description into consideration.BRIEF DESCRIPTION OF DRAWINGS

[0022] To understand the advantages of the present invention, including its structure and additional elements, it will be evaluated using the following defined figures.

[0023] Figure 1 shows a representative view of the chassis structure, which is the subject of the invention, in its assembled state.

[0024] Figure 2 shows a representative view of the chassis structure, which is the subject of the invention, in its disassembled state.

[0025] REFERENCE NUMBERS

[0026] 10. Chassis

[0027] 11. Pipe profile

[0028] 11.1. Profile connection end

[0029] 12. Connecting piece

[0030] 12.1. Connecting piece connection end

[0031] DETAILED DESCRIPTION OF THE INVENTION

[0032] In this detailed description, the preferred embodiments of the motorcycle chassis (10) of the present invention are described only for clarifying the subject matter in a manner such that no limiting effect is created.

[0033] The present invention is a chassis (1), used in the production of motorcycles, that provides the motorcycle chassis (10) with a lightweight and rigid structure, characterized by comprising;

[0034] • pipe profiles (11) made of composite material, forming the load-bearing part of the chassis (10),

[0035] • connecting pieces (12) that hold the pipe profiles (11) together to form the chassis (10), having profile channels where the pipe profiles (11) are interfaced.Figures 1 and 2 show representative views of the chassis (10) of the present invention in both assembled and disassembled states. In the chassis structure (10), the pipe profiles (11) form the main load-bearing component of the chassis (10). Pipe profiles (11) are fastened together by means of connecting pieces (12) to form the chassis (10). Pipe profiles (11) and connecting pieces (12) have profile connection ends (11.1) on the ends of the pipe profiles (11) and connecting piece connection ends (12.1) on the connecting pieces (12) allowing them to be connected. Pipe profiles (11) produced differently are joined to each other by means of profile connection ends (11.1). The said profile connection ends (11.1) and the connecting piece connection ends (12.1) are formed to fit together, with one being narrower or wider than the other.

[0036] Pipe profiles (11) and connecting pieces (12) can be produced in different shapes and forms depending on the chassis structure (10). Pipe profiles (11) are made of composite material. This structure ensures that the chassis (10) is light and durable. The connecting pieces (12) are produced by an additive manufacturing method. The production of connecting pieces (12) by additive manufacturing both facilitates production and enables production without the need for new mold production in case of design changes.

Claims

CLAIMS1. Chassis (10), used in the production of motorcycles, provides the motorcycle chassis (10) with a lightweight and rigid structure, characterized by comprising;• pipe profiles (11) made of composite material, forming the load-bearing part of the chassis (10),• connecting pieces (12) that hold the pipe profiles (11) together to form the chassis (10).

2. Chassis (10) according to claim 1 is characterized by comprising the following, being formed to fit together the pipe profiles (11) and the connecting pieces (12) to each other,• profile connection end (11) located at the end parts of pipe profiles (11) and• connecting piece connection end (12.1) located at the ends of the connecting pieces (12).

3. Chassis (10) conforming to claim 1 is characterized by containing connecting pieces (12) produced by additive manufacturing.

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