Elastic Hook Fastener for Variable Profile Opening Attachment
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Solution Overview
Problem
Existing fastening systems are limited in their universal application possibilities due to fixed dimensional and positional requirements for adhesive connections, which restrict their use in various configurations and directions.
Innovation Solution
A fastening system featuring wing-like hooking parts that extend outward from the handle or receiving part, allowing for flexible engagement with adhesive fastener elements on a third-party component, enabling attachment at variable positions and directions by inserting into profile openings and gripping from behind, with the hooking parts designed to form a gap that decreases upon engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If adhesive fastener elements are fixed at predetermined locations on the carrier part, then the assembly process is simplified and positional tolerances are compensated, but the application possibilities are limited due to fixed dimensional and positional requirements
Solution Approach 1:
The hooking parts are designed to be elastically resilient and movable, transitioning from an initial retracted position to a hooked engagement position. This dynamic capability allows the fastening system to adapt to different profile channel geometries and positions, overcoming the limitation of fixed adhesive fastener locations while maintaining simplified assembly through the elastic engagement mechanism
Solution Approach 2:
The carrier part is divided into distinct functional elements: the body with adhesive fastener elements, the profile channel insertion path, and multiple elastically resilient hooking parts. This segmentation allows each element to perform its specific function independently, enabling the system to achieve both simplified assembly (through dedicated adhesive engagement) and versatile application (through flexible profile channel engagement)
2Adaptability or versatility
If hooking parts are designed to extend outward forming a gap in initial position, then universal application possibilities are enabled with variable hooking positions, but the structural complexity increases
Solution Approach 1:
The hooking parts are integrated directly into the carrier part as monolithic elastic elements rather than separate components. This merging of the hooking function into the carrier structure itself enables variable positioning and universal application while avoiding the complexity of additional separate fastening components, assemblies, or adjustment mechanisms
3Adaptability or versatility
If the carrier part is designed to be inserted into profile opening and rotated for engagement, then flexible positioning is achieved, but the assembly precision requirements increase
Solution Approach 1:
The hooking parts utilize elastic deformation as a parameter change mechanism, allowing them to transition between retracted and engaged states. This elastic compliance absorbs positioning variations and tolerances during the rotation and insertion process, enabling flexible positioning without requiring high assembly precision. The elastic resilient nature of the hooking parts compensates for dimensional variations in the profile channel and carrier part
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
This design provides universal application possibilities by allowing selective and variable hooking engagement, ensuring secure attachment without requiring a matching fastening hole, and maintaining elastically resilient properties for secure frictional locking.
Implementation Method 1
the respective hooked part passes through the profile opening at least until an end position is reached and that after the carrier plate lying outside of the profile opening has been rotated, the respective hooked part located in its end position comes into contact with at least one assignable, groove-like widening contact surface of the profile opening
Data Source
Figure 1
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AI summary
The invention relates to a fastening device, comprising a supporting part (9), adhesive fastening elements (25) attached to the supporting part and protruding from the supporting part (9), a shaft part (27) protruding beyond the supporting part (9), and at least one elastically resilient hooking part (19). Said fastening device is characterized in that each hooking part (19) extends outward away from the shaft part (27) and/or a holding part (29) for the hooking part (19) in an initial position, an intermediate space (30) thus being formed, which is reduced as soon as the hooking part (19) is moved toward the shaft part (27) and/or the holding part (29) under the influence of an external application of force.