BR-202024017297-U2 - DISPOSITION INTRODUCED IN SPIRAL CRANK

Abstract

It refers to a totally innovative crankset (1) for bicycles (B), preferably made of lightweight and resistant aluminum alloy, with anodized treatment to guarantee durability and an elegant finish, but not limited to this, of simple construction, whose novelty is a damped spiral crankset showing an innovative advance in bicycle mechanics, combining snail-inspired design with spring functionality for efficient and balanced power transmission.

Inventors

• JOSE CARLOS DE LIMA

Assignees

• JOSÉ CARLOS DE LIMA

Dates

Publication Date

20260310

Application Date

20240823

Claims (1)

1. 1) DISPOSITION INTRODUCED IN SPIRAL CRANKSET, for bicycles (B) characterized by the crankset (1) of substantially lever shape (2) in a spiral shape (3), for bicycles (B), preferably made of aluminum alloy with anodized treatment, or other rigid material, but not limited to these, joined to the chainring (4) at a point that does not produce force.

Description

BRIEF SUMMARY [0001] This Utility Model Patent application relates to an IMPROVED ARRANGEMENT IN A SPIRAL CRANKSET that describes a damped spiral crankset showing an innovative advance in bicycle mechanics, combining snail-inspired design with spring functionality for efficient and balanced power transmission. Its spiral structure with a spring-type system absorbs impacts and maximizes energy transfer. [0002] Its construction can be in lightweight aluminum and carbon fibers, but is not limited to these, offering durability and lightness. The integrated damping system provides a smooth ride, reducing fatigue and improving performance. The spiral geometry allows for a proportional increase in pedaling resistance, ideal for climbs and uneven terrain. It is compatible with modern drivetrain systems and customizable in size. FIELD OF APPLICATION [0003] The arrangement introduced in spiral cranksets has its field of application defined for the sector of two-wheeled vehicles powered by a pedal system that moves a transmission chain, more precisely it is used in bicycles, but not limited to them. FUNDAMENTALS OF THE TECHNIQUE [0004] The evolution of the bicycle, which has ancient roots, gained momentum in the early 19th century. Innovation arrived in 1839 with the introduction of pedals, and approximately fifty years later, the chain drive system emerged. [0005] Bicycles stand out for their simplicity and low maintenance cost, making them ideal for transportation in both urban and rural areas. They are environmentally friendly, as they do not produce polluting emissions, and promote a sustainable and healthy lifestyle, encouraging physical activity when used. [0006] In addition to being extremely economical, as they do not require fuel, bicycles are powered by the user's own energy through pedaling. In general, the structure of a bicycle consists of two aligned wheels of similar size, a seat or saddle, handlebars for steering control, and a transmission system activated by the pedals. [0007] Aiming for a technical breakthrough and significant improvement, an inventor created an innovative spiral crankset. The spiral geometry allows for a proportional increase in pedaling resistance, ideal for climbs and uneven terrain. STATE OF THE ART [0008] The state of the art document PI 9404655-7, filed on 11/16/1994 and published on 03/04/1997, is known under the title CRANKSET FOR BICYCLE WITH DIFFERENT ANGLE BETWEEN THE TWO ENDS FOR PEDAL POSITION RETREAT AND LEVERAGE ANGLE ADVANCE, which advances the leverage only by retracting the pedal position through a differentiated angle of the crank ends, which modifies the operation of the bicycle increasing its efficiency in pedal rotation, as shown in the drawings. [0009] As can be seen in the patent filed above, it is a slightly arched crankset, as can be seen in the figures presented, which differs from the conventional one which is straight, therefore, its arched structure maintains the point of effort on the central axis, which in fact, does not improve the effort x power ratio at all. NEW PRODUCT [0010] The spiral crankset design conceptually aims for a damped spiral crankset, showcasing an innovative advancement in bicycle mechanics, combining snail-inspired design with spring functionality for efficient and balanced power transmission. Its spiral structure with a spring-type system absorbs impacts and maximizes energy transfer. [0011] The Shock-Cooled Spiral Crankset represents a revolution in power transmission in the world of cycling; the pursuit of efficiency and comfort is constant. With the Shock-Cooled Spiral Crankset, we are introducing a new era in bicycle mechanics. This unique design combines the aesthetics of a snail with the functionality of a spring, resulting in smooth and balanced power transmission. [0012] With an innovative design, the crankset features a spiral structure with progressive layers that function like steps. Each layer is connected by a spring-type system that absorbs impact and distributes force evenly. The attachment point on the chainring is precisely calculated to maximize the transfer of energy from the cyclist to the bicycle. [0013] Advanced materials: We use a lightweight and strong aluminum alloy with an anodized finish to ensure durability and an elegant finish. The spiral layers are reinforced with carbon fibers, providing rigidity without compromising weight, but not limited to these. [0014] Regarding damped power transmission, the heart of this crankset is the integrated damping system. When pedaling, the applied force is absorbed and converted into movement, minimizing energy loss and increasing efficiency. The result is a smoother pedal stroke, which reduces fatigue and improves performance over long distances. [0015] Balance in applied force gain: The spiral geometry of the crankset allows for a progressive gain in force. As the cyclist pedals, resistance increases proportionally, offering an ideal balance between effort and spe