Vehicle Roof Frame Stop Element Design
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Solution Overview
Problem
Existing vehicle roof frames with openable roofs face challenges in securely fastening sliding headliner elements, which can slip out, and require precise assembly and color matching, limiting universal application and ease of replacement.
Innovation Solution
A frame design featuring spring-loaded stop elements integrated into the end pieces, with a cover element and base element forming a sealed chamber, allowing for universal assembly and easy replacement of the sliding headliner without dismantling, and utilizing a film hinge for secure sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sliding headliner element is inserted between frame parts, then the frame can be assembled, but the sliding headliner can slip out
Solution Approach 1:
A stop element is pre-formed on the end piece before assembly, which protrudes into the space between frame parts to prevent the sliding headliner from slipping out. This preliminary structural feature ensures reliable securing without requiring additional components or complex assembly steps.
2Ease of manufacture
If end pieces are attached to frame parts before inserting sliding headliner, then assembly is simplified, but the sliding headliner cannot be secured
Solution Approach 1:
The stop element is pre-formed on the end piece during manufacturing, allowing the end piece to be attached to the frame part before the sliding headliner is inserted. The stop element is initially in a retracted position that does not interfere with insertion, but automatically engages to secure the headliner once it is in place.
Solution Approach 2:
The stop element is designed as a spring-loaded component that can dynamically change its position. It is initially retracted to allow easy insertion of the sliding headliner, then automatically extends to engage and secure the headliner, providing both ease of assembly and reliable securing.
3Adaptability or versatility
If the frame is designed for specific headliner color, then color matching is ensured, but universal application is limited
Solution Approach 1:
The frame design uses a standardized end piece with a pre-formed stop element that can be attached to any frame part regardless of the sliding headliner's color. This universal component allows the same end piece to be used across different frame configurations and headliner colors, enabling universal application while maintaining functional integrity.
4Ease of repair
If sliding headliner is replaced, then customization is possible, but frame must be dismantled
Solution Approach 1:
The frame is segmented into modular components: frame parts, end pieces with stop elements, and the sliding headliner. The stop element is integrated into the end piece, which can be independently attached or removed from the frame parts. This segmentation allows the sliding headliner to be replaced by simply removing the end piece, without dismantling the entire frame structure.
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 design securely prevents the sliding headliner from slipping out, allows for universal frame use regardless of headliner color, and enables easy replacement without damaging seals, ensuring a watertight and compact structure.
Implementation Method 1
a spring-loaded stop element is formed onto the end piece and extends into the area between the frame parts
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a frame (1) of an openable vehicle roof, having two frame parts (4, 5) which run laterally to a roof opening and are each delimited by an end piece (6, 7) arranged at the rear end of the frame part (4, 5). Said frame is characterised according to the invention in that a resiliently mounted stop element (9) is moulded onto the end piece (6, 7), wherein said stop element extends into the region between the frame parts (4, 5). The invention also relates to a corresponding method for mounting a frame of an openable vehicle roof.