Motorcycle Tank Bag Mounting for Refueling Access and Cap Protection
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Solution Overview
Problem
Existing solutions for attaching tank bags to motorcycles often require complex alignment of fastening elements, pose a risk of damage to the fuel cap, and do not allow easy access for refueling.
Innovation Solution
A luggage system for motorcycles that uses mounting elements fixed to the fuel tank, allowing secure and quick attachment of a tank bag without direct contact to the fuel cap, featuring pivotable hooks, buffer elements, and a design that minimizes force transmission to the cap, with a quick-release mechanism and pivotable tank bag for refueling access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tank bag is attached to the fuel cap using existing fastening systems, then the attachment can be secured, but the fuel cap is at risk of damage and the alignment of fastening elements becomes complex
Solution Approach 1:
The patent introduces mounting elements as intermediary components that are fixed to the fuel tank body (not the fuel cap) and serve as the attachment point for the tank bag. This mediator approach transfers the attachment function from the fuel cap to the tank body, eliminating direct force transmission to the cap while maintaining secure attachment.
Solution Approach 2:
The fastening system is divided into separate components: mounting elements fixed to the tank body, and corresponding retaining elements on the tank bag. This segmentation allows the attachment mechanism to be distributed across multiple points on the tank body rather than concentrating force on the fuel cap, reducing damage risk.
2Reliability
If complex fastening systems are used to secure the tank bag, then attachment security is improved, but the alignment of fastening elements becomes time-consuming
Solution Approach 1:
The mounting elements are pre-fixed to the fuel tank body at predetermined positions during manufacturing. This preliminary action eliminates the need for time-consuming alignment during attachment, as the mounting elements are already positioned correctly to receive the retaining elements from the tank bag.
3Reliability
If the tank bag is attached to the fuel tank system, then secure hold is achieved, but access for refueling becomes difficult
Solution Approach 1:
The tank bag is designed with a pivotable connection to the mounting elements, allowing it to be dynamically positioned. The bag can be pivoted away from the fuel cap area to provide access for refueling, then returned to its secure position during riding. This dynamic adjustment resolves the contradiction between secure attachment and refueling accessibility.
Data Source
Figure 1~2
AI summary
The invention relates to a tank device (12) for a motorcycle, said tank device comprising: a fuel tank (16); a tank cap (18) which can expose and close a tank filling opening (20) of the fuel tank (16); and a fastening device (24) which comprises at least two fastening elements (26) which are mounted in a positionally fixed manner on the fuel tank (16) and by means of which a tank bag (14) can be fastened to the tank device (12) exclusively via the fuel tank (16).