Motorcycle Radar Mounting Stability via Segmented Hanging Frame
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Solution Overview
Problem
Existing straddle vehicle radar devices attached at a relatively low position inside the front cowl face instability due to long connecting members, making it difficult to maintain posture stability.
Innovation Solution
A support frame structure that includes a radar stay and a radar bracket, where the radar device is attached via vibration reduction members, allowing it to be positioned lower in the front cowl while being supported by a hanging frame that connects to the head pipe, stabilizing its posture through a combination of attachment surfaces and vibration reduction members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the radar device is attached at a relatively low position inside the front cowl, then the radar device can be positioned lower in the front cowl, but the member connecting the radar device to the body frame becomes long, making it difficult to stabilize the posture of the radar device
Solution Approach 1:
The patent divides the connection structure into multiple segments: a hanging frame connected to the head pipe, and a radar bracket connected to the hanging frame. This segmentation allows the radar device to be positioned lower while maintaining stability through the distributed support structure, resolving the contradiction between low positioning and posture stability.
Solution Approach 2:
The patent introduces a vertical dimension to the support structure by using a hanging frame that extends downward from the head pipe. This dimensional approach allows the radar device to be mounted at a lower position while the upper connection point remains high on the head pipe, maintaining structural stability despite the increased vertical span.
2Volume of moving object
If the member connecting the radar device to the body frame is long, then the radar device can be positioned lower, but the long member is prone to deformation and vibration, reducing reliability
Solution Approach 1:
By segmenting the connection into a hanging frame and radar bracket, the patent eliminates the need for a single long connecting member. Each segment is shorter and more rigid, reducing deformation and vibration while achieving the low positioning goal, thus improving reliability.
Solution Approach 2:
The patent employs a composite support structure combining the hanging frame and radar bracket, which together provide enhanced rigidity and vibration resistance compared to a single long member, thereby improving operational reliability at lower positions.
3Device complexity
If a simple bracket is used to attach the radar device, then the device complexity is reduced, but the posture stabilization capability is insufficient for low-position mounting
Solution Approach 1:
The patent uses a segmented attachment structure (hanging frame + radar bracket) that provides superior posture stabilization compared to a simple bracket. The segmentation distributes the support function across multiple components, achieving both stability and reasonable complexity.
Solution Approach 2:
The hanging frame acts as an intermediary between the head pipe and the radar bracket, providing additional support and stabilization. This intermediary element enhances posture stability without significantly increasing overall device complexity, as it integrates with the existing head pipe structure.
Data Source
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AI summary
A motorcycle includes a branch frame, a hanging frame (44), a front cowl (33), and a radar device (60). The branch frame is located in front of a head pipe (11) and supported by the head pipe (11). The hanging frame (44) is connected to the branch frame and includes a plurality of extension portions (44a) extending downward from the branch frame and an attachment portion (44b) connecting at least two of the plurality of extension portions (44a) to each other. The front cowl (33) is arranged at a front part of the motorcycle and protrudes forward. A recess is formed at a rear side of the front cowl (33). The radar device (60) is supported by the attachment portion (44b) of the hanging frame (44) and is arranged in the recess in the front cowl (33).