Motorcycle Fuel Tank Bracket with Swelling Portion for Cable Routing
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Solution Overview
Problem
In motorcycles, cables extending from the head pipe to the fuel tank must often wrap around a narrow bracket, increasing their length and creating assembly challenges due to the lack of a gap between the bracket and the vehicle body frame.
Innovation Solution
A straddle-type vehicle design featuring a bracket with a swelling portion that creates a gap between the bracket body and the vehicle body frame, allowing cables to pass through instead of wrapping around the bracket, thereby reducing cable length and improving assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cable is placed to extend around the outer periphery of the bracket, then the cable can be routed through the narrow gap, but the cable length increases unnecessarily
Solution Approach 1:
The swelling portion creates a new spatial dimension by protruding from the bracket body toward the vehicle body frame, forming a gap that allows cables to pass through in a straight line rather than wrapping around the bracket periphery, thus reducing cable length while maintaining routing capability
2Device complexity
If the bracket is designed as a simple flat plate, then the bracket structure is simple, but cables cannot be routed through the bracket area
Solution Approach 1:
The bracket is segmented into a flat plate body and a separate swelling portion that protrudes from the body, creating distinct functional zones: the flat plate provides structural support while the swelling portion creates the cable routing gap, thus maintaining structural simplicity while enabling cable passage
Data Source
AI summary
A motorcycle of the present invention comprises a main frame (8); a fuel tank; and a bracket (29) for fastening a front end portion of the fuel tank to a front portion of the main frame (8); the bracket (29) includes: a bracket body (30) of a flat plate shape; and frame joining portions (41a), (41b) which partially swell from the bracket body (30) toward the main frame (8), on a reverse surface of the bracket body which surface is configured to contact the main frame (8); and the frame joining portions (41a), (41b) are configured to contact the main frame (8) such that a gap through which a throttle cable (53) extends is formed between the bracket body (30) and the main frame (8). This makes it possible to place the cable such that the cable does not extend around the outer periphery of the bracket provided to fasten the fuel tank to the vehicle body frame.