Integrated Actuator and Key Cylinder for Motorcycle Lid Locking

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Solution Overview

Problem

Conventional motorcycle locking systems require multiple cables to connect actuators and key cylinders, increasing complexity and cost, and may fail due to battery discharge without a reliable backup mechanism for unlocking vehicle components.

Innovation Solution

Integration of an actuator and key cylinder into a single body, connected to vehicle components via a wire cable, allowing for simplified structure and reduced component count, with the key cylinder positioned for external operation and the actuator provided inside the body cover for enhanced flexibility and reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If actuators and key cylinders are connected through different cables, then both functions are provided, but the number of cables increases and costs increase

Engineering Contradiction:
Improveunlocking functionVSAvoidnumber of cables
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the actuator and key cylinder into a single integrated unit, allowing both the remote control actuator function and the manual key cylinder function to share common mounting space and connection mechanisms, thereby reducing the number of separate cables needed while maintaining both unlocking functions

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If multiple cables are used for actuator and key cylinder connections, then both components can operate, but the structure becomes complex and costly

Engineering Contradiction:
Improvebackup unlocking mechanismVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

By integrating the actuator and key cylinder into one unit, the patent reduces manufacturing complexity and cost while maintaining the reliable backup unlocking mechanism. The integrated design allows both electronic actuator operation and manual key operation to function through a unified structure

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If the actuator is positioned inside the body cover, then flexibility in component placement is improved, but accessibility for operation may be reduced

Engineering Contradiction:
Improvecomponent placement flexibilityVSAvoidaccessibility
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent segments the integrated unit into distinct functional portions: the actuator is positioned inside the body cover for flexible placement and protection, while the key cylinder extends outward to remain accessible for manual operation. This segmentation allows both interior positioning benefits and exterior accessibility

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2003045B1Motorcycle
Publication Date: 2012.02.22 YAMAHA MOTOR CO LTD
  • EP2003045B1 patent drawingFigure 1
  • EP2003045B1 patent drawingFigure 2
  • EP2003045B1 patent drawingFigure 3

AI summary

A motorcycle includes an actuator (47) for releasing locking of a lid (32) locked in a vehicle body by operating a transmitter and a key cylinder (48) for releasing locking of the lid (32) by key operation. The actuator (47) and the key cylinder (48) are formed into one body.