Sittable universal motion platform

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Solution Overview

Problem

Existing universal motion platforms for virtual reality are cumbersome, difficult to use for users with different body types, and fail to allow natural movement such as squatting and running due to high volume, weight, and balance issues.

Innovation Solution

A sittable universal motion platform with a chassis, support arm, and waist ring, featuring adjustable sliding mechanisms and springs for stability and comfort, allowing users to move in any direction and adjust height for a secure fit, enabling natural movement and immersion in virtual environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If column and beam hanging structure is used to support human, then support strength is improved, but device volume becomes huge and overall height is too high

Engineering Contradiction:
Improvesupport strengthVSAvoiddevice volume
Core Design Contradiction:
StrengthVSVolume of stationary object

Solution Approach 1:

The support structure is divided into multiple segments: a support ring for hand holding, a support rod connecting to the chassis, and an adjustable support arm with sliding mechanism. This segmentation allows each component to be optimized independently, reducing overall volume while maintaining support strength.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adjustable support arm uses a nested sliding mechanism where the slide carriage moves along the support arm, and the slide block moves along the slide carriage. This nesting allows the support structure to be compact when not in use while providing extended support when needed, significantly reducing device volume.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Stability of the object's composition

If support ring structure is used to support human, then support stability is improved, but device complexity increases and squat operation cannot be realized

Engineering Contradiction:
Improvesupport stabilityVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The support arm incorporates a dynamic sliding mechanism that allows the slide carriage to move along the support arm and the slide block to move along the slide carriage. This dynamic adjustment capability enables the device to adapt to different user heights and positions, maintaining stability while enabling squat operations and reducing overall structural complexity.

Inventive Principle:
Principle #15Dynamics

3Ease of manufacture

If smooth concave chassis is used, then manufacturing simplicity is improved, but user balance during squatting deteriorates and adaptability to different body types is reduced

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoiduser balance
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The chassis maintains a simple smooth concave shape for ease of manufacture, but adds localized features including a positioning groove at the rear end and adjustable support with multiple positioning positions. These local modifications provide necessary balance support during squatting and adaptability to different body types without compromising manufacturing simplicity.

Inventive Principle:
Principle #3Local quality

4Device complexity

If fixed support structure is used, then device simplicity is improved, but adaptability to users with different heights deteriorates

Engineering Contradiction:
Improvedevice simplicityVSAvoidadaptability to different heights
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The support arm incorporates a dynamic sliding mechanism that allows the slide carriage to move along the support arm and the slide block to move along the slide carriage. This dynamic adjustment capability enables the device to adapt to different user heights and positions, maintaining stability while enabling squat operations and reducing overall structural complexity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10486075B2Sittable universal motion platform
Publication Date: 2019.11.26 HANGZHOU VIRTUAL AND REALITY TECH CO LTD
  • US10486075B2 patent drawing
  • US10486075B2 patent drawing
  • US10486075B2 patent drawing

AI summary

The present invention discloses a sittable universal motion platform including a chassis, a support arm and a waist ring, the support arm is rotationally connected with the chassis and provided with an adjusting support; the adjusting support includes a slide carriage and a slide block, the slide block is slidingly connected with the slide carriage and is fixed on the support arm, the slide carriage is connected with the waist ring; and a positioning device is arranged on the adjusting support. The slide carriage is provided with slide rail and the slide block is provided with a corresponding matched chute, the number of slide rails can be two, and the number of corresponding chutes is also two, so that the slide carriage and the slide block can slide at will and can be more stable.