Turn Signal Lamp Support Structure for Motorcycle
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Solution Overview
Problem
Existing support structures for turn signal lamps in straddle-type vehicles face a trade-off between reducing shaking during travel and absorbing impact during turnovers, with current solutions either compromising on rigidity or impact absorption.
Innovation Solution
A support structure comprising a first side cowling with a cutout and a second side cowling that covers it from the inside, allowing the turn signal lamp to be fixed and increasing rigidity, while the second cowling is detachable from the first cowling to absorb and dissipate external forces during impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the turn signal lamp is fixed with high rigidity to reduce shaking, then the support rigidity is improved, but the impact absorption during turnover deteriorates
Solution Approach 1:
The support structure is divided into two separate cowling parts: a first side cowling and a second side cowling. The turn signal lamp is fixed to the second side cowling with high rigidity to reduce shaking, while the second side cowling is detachably connected to the first side cowling to allow impact absorption during turnover. This segmentation enables different functional requirements to be satisfied in different parts of the support structure.
Solution Approach 2:
The connection between the first side cowling and the second side cowling is designed to be detachable rather than permanently fixed. During normal operation, the connection maintains rigidity to prevent shaking. During turnover impact, the connection can detach to absorb impact, transitioning from a static fixed connection to a dynamic conditional connection that adapts to different operational states.
2Stability of the object's composition
If a rigid support structure is used to reduce lamp shaking, then the support rigidity is improved, but the risk of breakage during impact increases
Solution Approach 1:
The support structure is segmented into two cowling parts with different functional roles. The second side cowling provides rigid support for the turn signal lamp to reduce shaking and prevent breakage during normal operation. The first side cowling serves as a sacrificial impact absorption element that can detach during turnover to protect the lamp from breakage during impact.
Solution Approach 2:
The first side cowling acts as an intermediary between the external impact force and the turn signal lamp. During turnover, the first side cowling detaches from the second side cowling, serving as a mediator that absorbs and redirects the impact force away from the lamp, thereby reducing the risk of breakage while maintaining lamp stability during normal operation.
Data Source
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AI summary
A support structure for a turn signal lamp provided on a straddle-type vehicle includes: a first side cowling having a cutout formed in a part of the first side cowling; and a second side cowling configured to cover the cutout from an inner side. The second side cowling is configured to support the turn signal lamp extending outward through the cutout. An outer side surface of the second side cowling is attached to an inner side surface of the first side cowling so as to be detachable in a vehicle width direction.