Front-Drive Drifting Kart With Engageable Rear Caster Wheels

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Solution Overview

Problem

Karts lack the capability to induce and control drift during turns due to their rear wheel drive configuration and absence of a differential, limiting their maneuverability and performance in drifting techniques.

Innovation Solution

A front wheel drive system with dynamically engageable rear caster wheels, controlled by a hand lever, allows for the induction and control of drift during turns by altering the alignment of the caster wheels to either limit or enable their swiveling, mimicking the hand brake drift technique used in rear wheel drive cars.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If karts use rear wheel drive configuration without differential, then the kart structure remains simple, but the kart cannot induce and control drift during turns

Engineering Contradiction:
Improvedrift control capabilityVSAvoiddrive system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by making the rear wheel drive system dynamically adjustable. The drive system can switch between engaged and disengaged states, allowing the rear wheels to transition from tracked motion to free-swiveling motion. This dynamic capability enables drift control while maintaining overall system simplicity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent segments the drive system into independent rear wheel assemblies, each capable of being individually engaged or disengaged from the drive mechanism. This segmentation allows selective activation of drift control functionality without complicating the entire drive system.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If rear wheels are fixed to prevent swiveling, then the kart maintains stable tracking, but the kart cannot perform drift maneuvers

Engineering Contradiction:
Improvedrift maneuver capabilityVSAvoidwheel alignment stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent makes the wheel alignment dynamic rather than fixed. The rear wheels can be held in a stable tracked alignment when engaged, and transition to free-swiveling alignment when disengaged. This dynamic adjustment enables both stable tracking and drift maneuvers.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameters of the rear wheels between two states: engaged (tracked, stable alignment) and disengaged (free to swivel, drift capability). This parameter change allows the kart to switch between stable tracking and drift maneuvers.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If hand brake drift technique is used in rear wheel drive cars, then drift can be induced, but the technique cannot be directly applied to front wheel drive karts

Engineering Contradiction:
Improvehand brake drift techniqueVSAvoidcontrol mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent inverts the traditional hand brake drift concept by applying it to front wheel drive karts through rear wheel disengagement. Instead of braking the rear wheels to induce drift, the system disengages the rear wheels from the drive mechanism, allowing them to freely swivel and induce drift in a front wheel drive configuration.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The patent introduces a control mechanism that acts as an intermediary between the driver's input and the rear wheel drive system. This intermediary mechanism enables the adaptation of hand brake drift technique to front wheel drive karts by controlling the engagement and disengagement of the rear wheels.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11903886B2Drifting kart
Publication Date: 2024.02.20 KERMANI ALI
  • US11903886B2 patent drawing
  • US11903886B2 patent drawing
  • US11903886B2 patent drawing

AI summary

Drifting karts in accordance with embodiments of the invention are described that include a front wheel drive train and rear caster wheels that can be dynamically engaged to induce and control drift during a turn. One embodiment of the invention includes a chassis to which a steering column is mounted, where the steering column includes at least one front steerable wheel configured to be driven by an electric motor, a battery housing mounted to the chassis, where the battery housing contains a controller and at least one battery, wiring configured to provide power from the at least one battery to the electric motor, two caster wheels mounted to the chassis, where each caster wheel is configured to rotate around a rotational axis and swivel around a swivel axis, and a hand lever configured to dynamically engage the caster wheels to induce and control drift during a turn.