Ceiling Speaker Provisional Fastening Mechanism
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Solution Overview
Problem
Existing embedded-type speaker units face poor operability issues during mounting and dismounting, as the provisionally fastening structure requires complex operations to release the speaker unit from the ceiling, making it difficult for operators to safely and efficiently detach the unit.
Innovation Solution
A speaker unit with a provisionally fastening mechanism that includes a resilient member with an engaging section and an operating section, allowing for simple manual operation from the face side to cancel the engagement with the ceiling, enabling easy release and retraction of the speaker unit without tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the resilient piece is used for provisional fastening with abutment against the reverse side of the ceiling, then the speaker unit is prevented from falling down, but the abutting engagement cannot be canceled by ordinary operation from the face side
Solution Approach 1:
The patent inverts the conventional resilient piece structure by providing a separate operating section that protrudes toward the face side. This allows the engaging section to maintain reliable abutment engagement against the reverse side ceiling while the operating section enables easy cancellation through simple pressing from the face side, resolving the contradiction between reliability and ease of operation.
Solution Approach 2:
The provisional fastening mechanism is segmented into distinct functional portions: the engaging section that performs the fastening action against the ceiling, and the operating section that enables release. This segmentation allows each portion to be optimized for its specific function, with the engaging section ensuring reliable fastening and the operating section providing easy cancellation.
2Reliability
If the resilient piece abuts against the reverse side surface of the ceiling, then the speaker unit is securely fastened, but complex operations are required to release the speaker unit
Solution Approach 1:
Instead of requiring complex operations from the reverse side to release the fastening, the patent inverts the approach by providing an operating section that protrudes to the face side. This allows simple pressing operation from the face side to cancel the engagement, significantly reducing the complexity of the release operation while maintaining secure fastening through the engaging section's abutment against the ceiling.
3Ease of manufacture
If the cabinet section is inserted into the mounting hole with the speaker face exposed, then the speaker unit can be fixed to the ceiling, but the heavy speaker unit may fall down during installation
Solution Approach 1:
The resilient piece with the engaging section performs preliminary fastening action as the cabinet section is inserted into the mounting hole. This preliminary action prevents the heavy speaker unit from falling down during installation before the final bolting operation is completed, ensuring safety throughout the installation process.
Solution Approach 2:
The resilient piece provides beforehand cushioning by automatically engaging with the reverse side of the ceiling as the cabinet section is inserted. This resilient engagement acts as a safety mechanism that prevents the speaker unit from falling down during installation, providing protective cushioning before the final fixed state is achieved.
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
Enhances operability by allowing safe and prompt dismounting of the speaker unit through a simple manual operation, improving the efficiency and safety of the mounting and dismounting processes.
Implementation Method 1
an operating section (15) exposed to the face side of the mounting part (60) with the speaker unit (1) engaged the mounting part (60) via the engaging section (13), said operating section (15) adapted to cancel engagement between the speaker unit (1) and the mounting part (60) via said engaging section (13) in response to an operation of a portion of the operating section (15) where the operating section (15) is exposed
Data Source
AI summary
A speaker unit mounting structure includes a provisionally fastening mechanism for fastening a speaker unit to a ceiling with a cabinet section of the speaker unit inserted in a mounting hole of the ceiling. The provisionally fastening mechanism includes a provisionally fastening tab formed of resilient metal, fixed to the outer peripheral side surface of the cabinet section and having a stepped engaging section engageable with the inner peripheral edge portion of the mounting hole. Engagement of the engaging section with the inner peripheral edge portion of the mounting hole can be canceled by a human operator pressing, from the face side of the ceiling, an operating section of the tab, exposed to a gap between the front side and a flange portion of the speaker unit, to thereby resiliently deform the operating section.