Linear actuator system for motion simulator

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Solution Overview

Problem

Existing linear actuators used in motion simulators are limited by their vertical orientation, which restricts the height of motion platforms and impacts their performance.

Innovation Solution

A linear actuator system with a transmission mechanism that allows movement in a first direction to be converted into movement in a second direction, enabling the actuator to be oriented differently without compromising performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If linear actuators are positioned in vertical orientation, then they can support the weight of platform and occupants, but they impose a constraint of height to motion platforms

Engineering Contradiction:
Improveweight support capabilityVSAvoidheight constraint
Core Design Contradiction:
ForceVSLength of stationary object

Solution Approach 1:

The patent transitions the actuator from vertical orientation to horizontal orientation by introducing a transmission mechanism. This dimensional change allows the actuator to support weight through vertical force components while occupying minimal vertical space, effectively resolving the height constraint contradiction.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

A transmission mechanism acts as an intermediary between the horizontally oriented actuator and the motion platform. This intermediary converts horizontal actuator movement into vertical platform motion, enabling weight support without requiring vertical actuator placement.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Length of stationary object

If linear actuators are reoriented from vertical to horizontal, then height constraints are reduced, but the actuator must still produce vertical motion output

Engineering Contradiction:
Improveheight constraintVSAvoidtransmission mechanism complexity
Core Design Contradiction:
Length of stationary objectVSDevice complexity

Solution Approach 1:

The transmission mechanism uses dimensional transformation to convert horizontal actuator displacement into vertical platform motion. By changing the orientation of motion transmission rather than the actuator itself, the system achieves vertical output from a horizontal actuator with relatively simple mechanical components.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If linear actuators are used in motion platforms, then viewing experience is enhanced through motion simulation, but the vertical orientation limits platform design flexibility

Engineering Contradiction:
Improveplatform design flexibilityVSAvoidheight constraint
Core Design Contradiction:
Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

By changing the actuator orientation from vertical to horizontal, the patent enables more flexible platform designs that are not constrained by vertical space requirements. This dimensional change allows for varied platform configurations and layouts.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The horizontally oriented actuator with transmission mechanism provides a universal solution that can be applied to various platform designs and configurations, enhancing adaptability while maintaining the motion simulation function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 solution allows for a more flexible orientation of linear actuators, potentially reducing height constraints and enhancing the performance of motion platforms in motion simulators.

Implementation Method 1

a transmission having a frame, at least one joining link pivotally connected to the frame at a first location and operatively connected to the actuator assembly at a second location for receiving movement from the output, the at least one joining link contacting an interface at a third location to cause relative movement between the frame and the interface in a second direction differing from the first direction

Methodology Applied
Scientific EffectMechanical linkage: Lever

Data Source

PatentUS12341397B2Linear actuator system for motion simulator
Publication Date: 2025.06.24 D-BOX TECHNOLOGIES
  • US12341397B2 patent drawing
  • US12341397B2 patent drawing
  • US12341397B2 patent drawing

AI summary

A linear actuator system may have an actuator assembly for moving an output in translation in a first direction. A transmission has a frame, a joining link(s) pivotally connected to the frame at a first location and operatively connected to the actuator assembly at a second location for receiving movement from the output. The joining link(s) contacting an interface at a third location to cause relative movement between the frame and the interface in a second direction differing from the first direction. A motion platform system is also provided.