Powered Rough-In Assembly for Consistent Speaker Clamping
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Solution Overview
Problem
Conventional in-ceiling or in-wall speaker installation is time-consuming and inconsistent due to the limitations of single-spring clamping mechanisms, which struggle with varying surface thicknesses and lack of feedback, often resulting in inadequate clamping force and aesthetic defects.
Innovation Solution
A two-stage clamping assembly system using a lightweight spring for initial clamping and a secondary mechanism for final force application, along with a powered rough-in assembly that allows wire termination during the rough-in stage, providing consistent and controlled clamping force across varying thicknesses and improved installation feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single strong spring is used to provide clamping force, then installation speed is improved, but clamping force consistency deteriorates across varying thicknesses
Solution Approach 1:
The clamping mechanism is divided into two independent springs: a first spring that provides initial clamping force to engage the speaker with the surface, and a second spring that applies additional force to ensure consistent contact pressure. This segmentation allows each spring to operate within its optimal force range, maintaining consistency across varying thicknesses while enabling quick installation.
Solution Approach 2:
The system uses two springs with different force characteristics rather than one strong spring. The first spring has lower force to accommodate thickness variations, while the second spring provides higher force for consistent contact. This parameter differentiation resolves the contradiction between speed and consistency by optimizing each spring's contribution.
2Force
If a high-bias spring is used to provide enough clamping force at the smallest thickness, then clamping force at thin surfaces is improved, but clamping force becomes excessive at thick surfaces
Solution Approach 1:
The clamping force is segmented into two stages: the first spring provides gentle initial engagement suitable for thin surfaces, while the second spring adds force only when needed for thicker surfaces. This prevents the harmful effect of excessive force on thick surfaces while ensuring adequate force on thin surfaces.
Solution Approach 2:
Instead of using one spring that must be strong enough for all cases (excessive for some, insufficient for others), the system uses two springs where the second spring provides partial additional action. This partial action ensures adequate force for thick surfaces without creating excessive force problems, as the second spring only engages when the first spring's force is insufficient.
3Ease of operation
If the speaker wire is left hanging during rough-in installation, then installation flexibility is improved, but wire damage risk increases
Solution Approach 1:
The speaker wire is preliminarily secured to the rough-in assembly during installation, rather than being left hanging. This preliminary action prevents the wire from becoming tangled, damaged, or lost during subsequent construction activities, while still allowing installation flexibility through the modular rough-in design.
Solution Approach 2:
The rough-in assembly serves as an intermediary structure that holds and protects the speaker wire during installation. By providing a dedicated mounting point for the wire on the rough-in assembly, the system eliminates the harmful effects of loose, hanging wires while maintaining installation flexibility through the separable rough-in and speaker components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The two-stage clamping assembly ensures uniform clamping force throughout the installation range, facilitating easier installation and adjustment, while the powered rough-in assembly streamlines the process by allowing wire termination during the rough-in phase, reducing the risk of wire damage and improving installation quality.
Implementation Method 1
The wiring block includes two spring-type terminals
Data Source
AI summary
A powered rough-in assembly is disclosed. The powered rough-in assembly includes a mounting frame that is annular, having an inner perimeter sized and shaped to receive a speaker module, and an outer perimeter having a polygonal shape with a plurality of edges. The powered rough-in assembly also includes a wiring block coupled to a first edge of the mounting frame. The wiring block includes two spring-type terminals and two wires, each terminal communicatively coupled to a first end of a different wire of the two wires. The plurality of edges includes at least one edge that is a flange having a plurality of countersunk holes. The plurality of edges also includes at least two edges releasably coupled to metal wings.