Curve Cornering Simulation Device with Caster Brake Mechanism

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Solution Overview

Problem

Current virtual reality cornering simulation devices fail to provide an authentic sliding and friction feeling during turns, due to slow reaction times and lack of sensitivity in leftward or rightward rotation, leading to a degraded reality experience.

Innovation Solution

A curve cornering simulation device featuring a rotatable foot board with pedals, caster brakes, and a track belt system that allows for precise control of caster rotation and sliding, incorporating a handle for upward and downward motion, and a sensing position collection part to transmit rotation angles, enabling realistic sliding and friction sensations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If a hydraulic or pneumatic cylinder is used to provide position displacement in a virtual reality experiencing device, then the device can achieve position control and motion simulation, but the operation reaction quickness becomes low and the leftward or rightward rotation is not sensitive

Engineering Contradiction:
Improveoperation reaction quicknessVSAvoidfacility complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent replaces hydraulic or pneumatic cylinder systems with a direct mechanical drive system consisting of a motor, drive belt, and rotating platform. This substitution eliminates the need for complex fluid control systems while achieving faster response times and more sensitive rotation control through direct mechanical coupling.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts and removes the hydraulic or pneumatic cylinder components from the system, eliminating the associated complexity of fluid control facilities while retaining the essential function of position displacement through a simplified mechanical alternative.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If a hydraulic or pneumatic cylinder is used for traveling type experiencing device, then position control is achieved, but the reaction is slow and sliding feeling cannot be provided during curved track travel

Engineering Contradiction:
Improvesliding feeling provisionVSAvoidreaction speed
Core Design Contradiction:
Ease of operationVSSpeed

Solution Approach 1:

The patent implements a dynamic mechanical system where the rotating platform can continuously adjust its position and orientation in real-time. The direct mechanical drive allows for dynamic response to user inputs, enabling the simulation of sliding sensations during curved track travel through continuous, smooth motion adjustments.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent replaces the slow-responding hydraulic or pneumatic system with a fast-response mechanical drive system that can immediately respond to position control signals, enabling real-time simulation of sliding effects during curved track movement.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If a motor and gears are used to provide rotational motion to a user's chair, then the chair can rotate about a vertical shaft, but it takes a long time for the input to be reflected and the motion does not feel like actual traveling

Engineering Contradiction:
Improverotational motion provisionVSAvoidinput reflection time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent replaces the gear-based mechanical transmission system with a direct drive system using a motor connected to the rotating platform via a drive belt. This eliminates gear backlash and mechanical delays, resulting in immediate response to user inputs and more realistic traveling sensations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent removes the gear train from the system, eliminating the time delay associated with gear engagement and mechanical transmission. The direct connection between motor and rotating platform ensures immediate response to control inputs.

Inventive Principle:
Principle #2Taking out (Extraction)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device provides a highly realistic virtual reality experience by simulating actual sliding and friction sensations during turns, enhancing user engagement and immersion compared to conventional devices.

Implementation Method 1

a caster brake which is provided above the caster, comes down, thus interrupting the rotation of the caster, so the caster can contact with the upper surface of the belt of a track belt

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3159049B1Curve cornering simulation device for providing the feeling of sliding when turning
Publication Date: 2020.02.12 KANG DA
  • EP3159049B1 patent drawingFigure 1
  • EP3159049B1 patent drawingFigure 2
  • EP3159049B1 patent drawingFigure 3

AI summary

Disclosed herein is a curve cornering simulation device for providing the feeling of friction and sliding when turning, which may include a foot board which is rotatable with respect to a rotary shaft; a pair of pedals which are installed, with the rotary shaft being disposed between the pedals; and a caster which is disposed under the pedals, wherein when a user steps on the pedals, a caster brake which is provided above the caster, comes down, thus interrupting the rotation of the caster, so the caster can contact with the upper surface of the belt of a track belt wherein the belt moves outward of a pair of rollers, and if the foot pedals are stepped on, it can move in the direction where the foot pedals are stepped on.