Saddle Vehicle Retainer Fastening for Comfort and Rigidity
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Solution Overview
Problem
In saddled vehicles, the retainer is disposed backward and away from the head pipe, which compromises passenger comfort.
Innovation Solution
A saddled vehicle configuration with a retainer fastened to the vehicle body via multiple fastening members, including a first fastening member attached to the head pipe and a second fastening member attached to the down frame, allowing the retainer to be positioned closer to the front and enhancing support rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the retainer is disposed backward and away from the head pipe, then the structure is simpler, but the occupant comfort is compromised
Solution Approach 1:
The fastening portion is divided into multiple fastening members (first fastening member and second fastening member) that are separately fastened to different parts of the vehicle body. This segmentation allows the retainer to be securely positioned closer to the front while maintaining structural simplicity, thereby improving occupant comfort without significantly complicating the overall structure.
Solution Approach 2:
The fastening members are arranged in different spatial positions and orientations relative to the head pipe and vehicle body. By utilizing three-dimensional spatial arrangement, the retainer can be positioned optimally for occupant comfort while keeping the fastening structure relatively simple.
2Ease of operation
If the retainer is positioned closer to the front, then the occupant comfort is improved, but the support rigidity requirement increases
Solution Approach 1:
The support function is segmented across multiple fastening members positioned at different locations. The first fastening member is fastened to the head pipe while the second fastening member is fastened to the vehicle body, creating distributed support points that collectively provide the necessary rigidity for the forward-positioned retainer.
Solution Approach 2:
Multiple fastening members are combined to work together as a unified fastening system. This combination of fastening members at different positions provides cumulative support rigidity that enables the retainer to be positioned closer to the front while meeting strength requirements.
3Manufacturing precision
If multiple fastening members are used, then the retainer positioning precision is improved, but the device complexity increases
Solution Approach 1:
The fastening portion is segmented into multiple independent fastening members, each responsible for a specific positioning function. This segmentation enables precise positioning of the retainer while keeping each individual fastening member relatively simple in structure.
Solution Approach 2:
The multiple fastening members serve universal functions of both fastening and positioning. By making each fastening member multi-functional, the need for separate positioning mechanisms is eliminated, thereby achieving precise positioning without proportionally increasing device complexity.
Data Source
AI summary
To realize disposition of a retainer that can improve an occupant comfort of a passenger of a saddled vehicle. In a saddled vehicle including: a vehicle body including a head pipe that supports a steering system and a down frame that extends downward from the head pipe; a retainer provided behind the head pipe; an inflator; and an airbag accommodated in the retainer, the airbag being configured to be expanded by gas released by the inflator and deployed in front of the passenger, the retainer is provided with a fastening portion that fastens the retainer to the vehicle body, and the fastening portion includes a plurality of fastening members.