Steering Wheel Vibration Device Attachment Bracket
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Solution Overview
Problem
Conventional steering wheels with vibration devices attached by a single screw face challenges in securely fixing the attachment bracket, leading to difficulties in attaching the vibration device due to rotation and floating issues.
Innovation Solution
The steering wheel design incorporates a rotation regulating unit and a floating regulating unit, utilizing an attachment bracket with a holding piece and a screw that clamps the vibration motor, allowing for easy attachment by aligning the insertion hole with the attachment seat and using a dual-use regulating unit to stabilize the attachment piece during screw-clamping, ensuring secure fastening with a single screw.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one screw is used to attach the attachment bracket to the attachment seat, then the number of components is reduced, but the attachment bracket may rotate and is hardly fixed at a predetermined position
Solution Approach 1:
The attachment bracket is segmented into two functional parts: an attachment piece for securing to the attachment seat and a holding piece for holding the vibration motor. This segmentation allows the attachment piece to be optimized for stable fixation while the holding piece provides motor support, resolving the contradiction between using few components and achieving reliable fixation.
Solution Approach 2:
The attachment piece acts as an intermediary between the attachment seat and the holding piece. It transfers the fastening force from the single screw to the vibration motor through the holding piece, enabling stable fixation with minimal components. The attachment piece's L-shaped configuration provides both attachment surface area and structural leverage for reliable motor holding.
2Reliability
If the attachment bracket is designed with an attachment piece and holding piece, then the vibration motor can be securely held, but the attachment operation becomes more complex
Solution Approach 1:
The attachment piece and holding piece are merged into a single integrated attachment bracket component rather than being separate parts. This merging maintains the functional benefits of having distinct attachment and holding regions while simplifying the assembly process to a single fastening operation, thus improving ease of operation without sacrificing motor holding stability.
3Reliability
If the screw is fastened through the insertion hole to the attachment hole, then the attachment can be secured, but the attachment piece may float or rotate during the fastening process
Solution Approach 1:
The attachment piece is preliminarily positioned and stabilized by the holding piece's structure before the screw fastening begins. The L-shaped configuration and the way the holding piece cradles the vibration motor create preliminary mechanical constraints that prevent floating or rotation during the fastening operation, making the screw fastening process easier and more reliable.
Data Source
AI summary
A steering wheel includes: a ring part; a boss part; a spoke part; and a core material. A vibration device is configured to be attached to an attachment seat provided in the core material. The vibration device includes: a vibration motor; and an attachment bracket which is clamped by a screw in the attachment seat. The attachment bracket includes: an attachment piece; and a holding piece which holds the vibration motor. The attachment seat and the attachment bracket correspond to each other so as to arrange a rotation regulating unit, configured to regulate a rotation of the attachment piece during screw-clamping in the attachment seat, and a floating regulating unit, configured to regulate floating of the attachment piece from the attachment seat due to declining of the holding piece holding the vibration motor when the attachment piece is arranged in the attachment seat directed upward.