Saddle-ride Vehicle Lid Opening Mechanism Error Absorption

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Solution Overview

Problem

Variations in attachment accuracy of the lid opening lever to the grab rail result in positional errors, leading to difficulties in opening the side trunk lid due to potential interference or improper alignment, affecting the unity and operability of the lid opening mechanism in saddle-ride type vehicles.

Innovation Solution

The lid opening lever is pivotally attached to the grab rail with a vertically engaged lid opening mechanism, incorporating an error-absorbing gap and an elastic member to maintain a constant position, and a key-locked mechanism ensures secure operation, with the grab rail attached to overlap the seat edge portion for enhanced stability and error absorption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the lid opening lever is directly attached to the grab rail without any intermediate structure, then the structure is simplified, but attachment accuracy variations cause large positional errors affecting operability

Engineering Contradiction:
Improvestructure complexityVSAvoidattachment accuracy
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent introduces a stay as an intermediate component between the vehicle body frame and the lid opening mechanism. This stay acts as a mediator that absorbs attachment accuracy variations, preventing direct transmission of positioning errors to the lid opening lever. The stay's flexible connection allows for error compensation while maintaining structural integrity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent incorporates an error-absorbing gap in the engagement portion between the lid opening mechanism and the lid opening lever. This gap is designed beforehand to accommodate and absorb attachment accuracy variations, cushioning the system against positioning errors before they affect operability. The elastic member further provides pre-designed cushioning capacity.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Stability of the object's composition

If the engagement portion between lid opening mechanism and lever has no gap, then the connection is rigid and precise, but attachment errors cause interference or misalignment

Engineering Contradiction:
Improveconnection rigidityVSAvoidpositional accuracy
Core Design Contradiction:
Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

The patent designs an error-absorbing gap in the engagement portion between the lid opening mechanism and the lid opening lever. This gap is specifically dimensioned to accommodate attachment accuracy variations while maintaining stable connection. The gap absorbs positioning errors without compromising the overall stability of the connection.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent employs an elastic member in the engagement portion that can deform elastically within a certain range. This allows the connection to maintain rigidity under normal conditions while accommodating positional variations through elastic deformation. The elastic member changes its physical state (deformation) to absorb errors while maintaining functional connection.

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If the grab rail is attached separately from the seat, then assembly is simplified, but positional stability and error absorption are reduced

Engineering Contradiction:
Improveassembly simplicityVSAvoidpositional stability
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The patent merges the attachment of the grab rail with the seat attachment to the vehicle body frame. By combining these attachment operations, the system achieves better positional stability and error absorption capabilities. The integrated attachment structure allows the grab rail to benefit from the seat's positioning accuracy while simplifying the overall assembly process through combined mounting operations.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS8844958B2Saddle-ride type vehicle
Publication Date: 2014.09.30 HONDA MOTOR CO LTD
  • US8844958B2 patent drawing
  • US8844958B2 patent drawing
  • US8844958B2 patent drawing

AI summary

A saddle-ride type vehicle prevents attachment accuracy from causing influence on assembly especially in a case of attaching lid opening levers to grab rails and attaching lid opening mechanisms to a vehicle body frame side separately from the lid opening levers Each lid opening lever is pivotally attached to a grab rail through a pivot center shaft. Each lid opening mechanism is bolted to a stay on an upper pipe 9a. The lid opening lever is provided with an engagement portion. A curved surface portion provided on an upper end portion of a bent protrusion a projecting upward from the lid opening mechanism is inserted in the engagement portion to vertically engage the lid opening lever and the lid opening mechanism with each other. In this way, the assembly can be done without being influenced by the attachment accuracy.