Roof Headliner Fastening Clamp for Tolerance-Compensating Latching
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Solution Overview
Problem
Existing fastening systems for molded headliners to vehicle roofs, particularly panoramic or sliding roofs, face challenges in clearance and height compensation, often requiring complex latching mechanisms and higher installation forces.
Innovation Solution
A fastening clamp design featuring elastically displaceable latching elements with a latching lug that projects from the support elements, allowing direct attachment to the headliner or roof without a mating latching element, enabling clearance and height compensation through elastic deformation, and a guide rail system for displacement, ensuring robust and cost-effective mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mating latching element is used for connection, then the fastening system can achieve secure connection, but the device complexity increases and installation becomes more difficult
Solution Approach 1:
The invention extracts the mating latching element from the system by enabling direct fastening of the fastening clamp to the molded headliner or vehicle roof without requiring a separate mating latching element. The latching element projects from the support element and engages directly with the molded headliner or roof structure, eliminating the need for an intermediate mating component while maintaining secure connection.
Solution Approach 2:
The fastening clamp is designed to perform multiple functions: it provides structural support, enables direct latching to the molded headliner or roof, and allows for clearance compensation. The single component integrates functions that previously required multiple separate elements, simplifying the overall system while maintaining connection security.
2Manufacturing precision
If rigid latching elements are used, then manufacturing precision can be maintained, but clearance compensation becomes difficult
Solution Approach 1:
The latching element is designed with elastic properties, allowing it to deform dynamically during installation and operation. This elasticity enables the latching element to accommodate clearance variations and tolerance deviations between the fastening clamp and the molded headliner or vehicle roof, while still maintaining precise engagement when installed.
Solution Approach 2:
The invention changes the physical parameter of the latching element from rigid to elastically deformable. This parameter change allows the latching element to adapt to varying clearance conditions while maintaining manufacturing precision in its base structure and engagement geometry.
3Adaptability or versatility
If complex latching mechanisms are used for tolerance compensation, then adaptability improves, but ease of manufacture decreases
Solution Approach 1:
The invention applies local quality by providing elasticity only in the latching element where tolerance compensation is needed, while keeping the base element and support elements rigid for structural stability. This localized application of elastic properties achieves adaptability without requiring the entire fastening clamp to be complex or difficult to manufacture.
Solution Approach 2:
The latching element is integrally formed with the support element, merging two components into one. This integration simplifies manufacturing by reducing the number of parts and assembly steps while maintaining the elastic compensation capability in the latching portion.
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 provides a secure, cost-effective, and easy-to-install fastening system that compensates for tolerance variations, ensuring a robust and long-lasting connection between the molded headliner and vehicle roof with minimal manufacturing costs.
Implementation Method 1
the respective latching element has, spaced from the base element, a latching lug for engaging behind an edge section of the molded roof or of the vehicle roof
Data Source
AI summary
A fastening clamp for fastening a molded headliner to a vehicle roof, in particular a panoramic or sliding roof, having a base element which is formed plate-shaped. Two support elements are arranged opposite one another and extend away from the base element and at least substantially towards one another. A latching element projects from the support element and is arranged on each support element for latching the fastening clamp to the molded headliner or to the vehicle roof. The respective latching element has, spaced from the base element, a latching lug for engaging behind an edge section of the molded headliner or of the vehicle roof, and the respective latching lug projects from the outer side of the support element, which side faces away from the opposite support element.