Straddled Vehicle Control Unit Holder With Lid-Integrated Layout

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Solution Overview

Problem

Existing straddled vehicles face issues with increased size and weight due to the use of large holders for accommodating multiple control units, which also limit the layout flexibility of these units.

Innovation Solution

A holder design that stably holds multiple control units by using one control unit as a lid for an opening, reducing the need for additional lids and maintaining compactness, with sidewalls and step portions to secure the units in place, and optionally using an elastic fixation member for additional stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If additional lock plates are added to the holder to secure control units, then the reliability of control unit retention is improved, but the volume of the holder increases

Engineering Contradiction:
Improvecontrol unit retention stabilityVSAvoidholder size
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The first control unit is designed to serve dual functions: it is both the controlled device and the lid for the holder. By merging the lid function with the first control unit, the patent eliminates the need for separate lock plates while maintaining secure retention of the second control unit. The holder volume is reduced because the first control unit itself forms the closure structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The first control unit performs multiple functions simultaneously: it is the controlled device that needs to be secured, and it also serves as the lid that secures the second control unit. This multi-functionality eliminates the need for additional dedicated securing components, resolving the contradiction between reliability and volume.

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

2Reliability

If the holder is increased in size to accommodate multiple control units with proper securing structures, then the reliability of control unit retention is improved, but the weight of the holder increases

Engineering Contradiction:
Improvecontrol unit retention stabilityVSAvoidholder weight
Core Design Contradiction:
ReliabilityVSWeight of stationary object

Solution Approach 1:

By combining the first control unit with the lid function, the patent eliminates additional securing components that would increase weight. The holder structure is simplified to only include essential elements (side walls and bottom surface), reducing overall weight while maintaining retention reliability through the integrated first control unit.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The first control unit's dual role as both controlled device and securing lid eliminates the need for separate heavy locking mechanisms. This multi-functionality allows reliable retention without the weight penalty of additional dedicated securing structures.

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

3Reliability

If the holder is increased in size to include dedicated securing structures, then the reliability of control unit retention is improved, but the layout flexibility of control units is reduced

Engineering Contradiction:
Improvecontrol unit retention stabilityVSAvoidcontrol unit layout flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

By merging the lid function with the first control unit, the patent creates a flexible holder structure that can adapt to different control unit configurations. The holder only requires side walls and a bottom surface, allowing control units to be arranged in various positions within the accommodation space while maintaining secure retention through the integrated first control unit lid.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The first control unit's dual functionality enables the holder to accommodate multiple control units with flexible layout options. Without dedicated securing structures that would fix the layout, the simplified holder design allows adaptability in control unit positioning while reliability is maintained through the first control unit serving as the closing lid.

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

Data Source

PatentEP4349699B1Straddled vehicle
Publication Date: 2025.11.19 YAMAHA MOTOR CO LTD
  • EP4349699B1 patent drawingFigure 1
  • EP4349699B1 patent drawingFigure 2
  • EP4349699B1 patent drawingFigure 3

AI summary

There is disclosed a straddled vehicle (1) including a first control unit (21), a second control unit (22) and a holder (23), the holder (23) holds together the first and second control units (21, 22); the holder includes an accommodation space (35) and a first opening (36); the first and second control units (31. 32) are disposed in the accommodation space (35); the first opening (36) communicates with the accommodation space (35) and is opened to one lateral side of the holder (23); the first control unit (21) is disposed to close the first opening (36).