Subwoofer Mounting Bracket With Anti-Rotation Foot Interface
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Solution Overview
Problem
Existing subwoofer mounting brackets with circular foot receiving portions are inadequate for elongated subwoofer enclosures, as they fail to maintain the required orientation during mounting, leading to rotation issues and potential noise and vibration due to improper alignment.
Innovation Solution
A speaker mounting assembly with an anti-rotation structure, featuring a foot receiving structure on the mounting bracket and a corresponding foot on the speaker housing with non-coplanar projection engagement surfaces, preventing rotation and ensuring proper alignment and secure fastening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a circular foot receiving portion is used in the mounting bracket, then circular enclosures can be mounted, but elongated enclosures cannot maintain proper orientation during mounting
Solution Approach 1:
The patent applies asymmetry by changing the foot receiving portion from a circular (symmetric) shape to a non-circular shape that corresponds to the elongated enclosure footprint. This asymmetric design allows the enclosure to be positioned in only one correct orientation, preventing rotation during mounting while maintaining compatibility with elongated enclosure types.
Solution Approach 2:
The patent introduces orientation control by adding dimensional constraints to the foot receiving portion. Instead of a circular shape that allows rotation around a single axis, the design incorporates specific geometric features (such as elongated slots or keyed shapes) that constrain the enclosure in multiple dimensions, thereby controlling orientation precision.
2Ease of operation
If a central fastening point is used, then circular enclosures can be mounted without orientation concerns, but elongated enclosures rotate out of required orientation
Solution Approach 1:
The patent replaces the symmetric central fastening point with an asymmetric fastening structure that includes multiple fastening points or a keyed fastening mechanism. This asymmetric arrangement ensures that the elongated enclosure can only be properly positioned in one orientation, preventing rotation during the fastening operation while maintaining ease of mounting through a straightforward fastening process.
Solution Approach 2:
The patent incorporates preliminary orientation guidance features in the foot receiving portion that guide the enclosure into the correct orientation before fastening occurs. This preliminary action ensures proper alignment is achieved before the fastening process begins, preventing rotation during mounting while maintaining ease of operation.
3Device complexity
If a circular bracket design is used, then mounting is simple, but elongated enclosures cannot be properly aligned
Solution Approach 1:
The patent modifies the simple circular bracket design by incorporating asymmetric features directly into the foot receiving portion. These features (such as elongated recesses, offset mounting holes, or keyed interfaces) are integrated into the bracket structure itself, maintaining relative design simplicity while achieving the necessary alignment precision for elongated enclosures.
Data Source
AI summary
Disclosed herein are embodiments of a speaker mounting assembly. In one such embodiment, the speaker mounting assembly comprises a speaker housing having a housing support surface, a speaker mounting bracket having a base surface, a projection extending from one of the speaker housing and the speaker mounting bracket and a mounting structure formed on the other of the speaker housing and the speaker mounting bracket. The mounting structure is configured to receive the projection such that the housing support surface contacts the base surface when the projection is received in the mounting structure. The mounting structure has an anti-rotation structure configured to prevent rotation of the speaker housing with respect to the speaker mounting bracket.