Vehicle Speaker Grille Claw Fixing with Limiting Member
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Solution Overview
Problem
Existing speaker apparatuses for vehicles face challenges in securely fixing a speaker grille using claw-fixing methods, as the claw-fixing portion can deform and easily slip out, especially when the interior member has an irregular shape, and conventional solutions like screwing or welding compromise aesthetics or require exposure of the hole edge.
Innovation Solution
A speaker apparatus design featuring a speaker unit with a limiting member positioned in the bending space of the claw-fixing portion, preventing disengagement by engaging the claw-fixing portion with the hole edge from inside the vehicle compartment, allowing secure attachment regardless of the interior member's shape without exposing the hole edge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If claw-fixing is used to attach the speaker grille, then the attachment process is simplified and miniaturization is enabled, but the claw-fixing portion deforms and slips out easily under force
Solution Approach 1:
The fixing mechanism is divided into two functional parts: the claw-fixing portion for initial attachment and the limiting member for preventing disengagement. This segmentation allows each component to specialize in one aspect of the fixing function, resolving the contradiction between ease of attachment and reliability of fixation.
Solution Approach 2:
The limiting member is designed to prevent disengagement before it occurs by restricting the bending space of the claw-fixing portion. This preliminary constraint ensures that the claw cannot deform enough to slip out, maintaining reliability while keeping the attachment process simple.
2Reliability
If screwing is used to prevent claw-fixing deformation, then fixing stability is improved, but the hole edge must be exposed to the inside of the compartment resulting in poor appearance
Solution Approach 1:
The limiting member is extracted as a separate component from the speaker grille, allowing it to perform the reliability function without affecting the appearance of the grille itself. The limiting member works internally to prevent claw deformation while keeping the external appearance clean and intact.
3Reliability
If welding is used to attach the speaker grille, then fixing stability is improved, but the speaker grille cannot be welded obliquely to irregularly shaped interior members
Solution Approach 1:
The claw-fixing portion is designed to be bendable and adaptable, allowing it to conform to various shapes of interior members. Unlike rigid welding, the dynamic claw structure can adjust to irregular geometries while the limiting member ensures stability, achieving both adaptability and reliability.
4Reliability
If the claw-fixing portion is made more rigid to prevent deformation, then fixing stability is improved, but the ability to engage with irregularly shaped hole edges is reduced
Solution Approach 1:
The fixing system is segmented into the claw-fixing portion for adaptive engagement and the limiting member for providing rigidity. This division allows the claw to remain flexible for engaging various hole shapes while the limiting member ensures sufficient rigidity to prevent disengagement.
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 solution ensures the speaker grille is securely fixed using claw-fixing without the risk of accidental removal, maintaining a clean appearance and accommodating various interior shapes, while the limiting member prevents deformation and slipping of the claw-fixing portion.
Implementation Method 1
the speaker grille including a claw-fixing portion that is bendable and is configured to be engaged with the hole edge
Implementation Method 2
the limiting member is positioned in a bending space for the claw-fixing portion and thereby prevents disengagement of the claw-fixing portion from the hole edge
Data Source
AI summary
A speaker apparatus in accordance with the present invention is for use with a vehicle having a compartment and is to be mounted to the vehicle. The speaker apparatus includes: an interior member including a hole edge that defines an attachment hole; a speaker unit configured to be placed in the attachment hole, the speaker unit including a limiting member; and a speaker grille configured to be attached in the attachment hole from an inside of the compartment, the speaker grille including a claw-fixing portion that is bendable and is configured to be engaged with the hole edge. Accompanying the engagement of the claw-fixing portion with the hole edge, the speaker grille is fixed to the interior member. Accompanying the placement of the speaker unit in the attachment hole, the limiting member is positioned in a bending space for the claw-fixing portion and thereby prevents disengagement of the claw-fixing portion from the hole edge.