Speaker Mounting via Rotating Flanges and Elastic Fixing Parts
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Solution Overview
Problem
The existing method of fixing a speaker to a vehicular instrument by screwing requires multiple screws, increasing the number of components and complicating the mounting process, thereby lowering workability.
Innovation Solution
An instrument design featuring a speaker with outward bulging flanges and a case with a recess that includes an installation surface and inward-bulging fixing parts, allowing the speaker to be rotated into a fixing position where the flanges and fixing parts overlap, simplifying the mounting process and reducing the number of components needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the speaker is fixed to the case by being screwed, then the speaker can be securely fixed to the case, but the number of components increases and the mounting operation becomes complicated
Solution Approach 1:
The fixing part integrates multiple functions into a single component: it provides both the mounting interface for the speaker flange and the fixation mechanism through the elastic body. The elastic body itself serves as both the mounting structure and the fixation element, eliminating the need for separate screws and washers.
Solution Approach 2:
The invention extracts the essential fixation function from the traditional screw assembly and implements it through an elastic body that can be elastically deformed. This extracted mechanism allows fixation without requiring threaded holes or multiple fastening components.
2Reliability
If the speaker is fixed to the case by being screwed, then the speaker can be securely fixed to the case, but the number of components has increased
Solution Approach 1:
The fixing part combines what would traditionally be separate components (mounting bracket, screw, washer) into a single integrated structure. The elastic body serves multiple purposes: structural support, mounting interface, and fixation mechanism, thereby reducing the total component count.
Solution Approach 2:
The elastic body performs multiple functions simultaneously: it provides structural support for the speaker, creates the mounting interface through its deformation, and provides the fixation mechanism through its elastic properties. This multi-functionality eliminates the need for multiple specialized components.
3Reliability
If multiple screws are used to fix the speaker, then the speaker can be securely attached to the case, but the mounting operation becomes complicated and workability decreases
Solution Approach 1:
The elastic body performs the fixation action automatically through its own elastic deformation when the speaker flange is pressed against it. The system is self-contained and does not require external tools or multiple fastening operations, making the mounting process simple and tool-free.
Solution Approach 2:
The elastic body is pre-positioned in the recess with its concave portion facing upward before the speaker is installed. This preliminary positioning allows the speaker flange to simply press down and engage the elastic body, which then automatically deforms and fixes the speaker in place without requiring pre-drilled holes or threaded fasteners.
Data Source
AI summary
An instrument is provided with: a body; a speaker having a plurality of flanges that bulge outward from the body; a case that has a recess for housing the speaker. The recess has a side wall, an installation surface on which the speaker is installed, and a plurality of fixing parts that fix the flanges in an orthogonal direction orthogonal to the installation surface and that bulge inward from the side wall. The speaker can rotate about the rotational axis in the orthogonal direction up to a fixing position where the flanges and the fixing parts overlap each other in the orthogonal direction after the speaker has been disposed in an unfixing position where the flanges and the fixing parts do not overlap each other in the orthogonal direction.