Eccentric Fastening Unit for Wall Mount Height Adjustment
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Solution Overview
Problem
Existing fastening devices for attaching objects to walls are complex and pose a risk of the object falling, especially heavy objects, due to the need for multiple steps and potential misalignment caused by height differences between attachment points.
Innovation Solution
A fastening device with a one-piece fastening unit comprising a contact element, a holding element, and a connecting eccentric, which simplifies the attachment process by allowing for horizontal alignment and height adjustment through rotation, reducing the risk of the object falling by ensuring secure grip and compensation for height offsets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fastening device with multiple separate components (mandrel, eccentric, cap) is used to compensate for height differences, then height adjustment capability is improved, but device complexity increases
Solution Approach 1:
The patent combines the mandrel, eccentric, and cap into a single integrated fastening unit that is inserted as one piece through the receiving opening. This merging maintains the height adjustment capability through the eccentric mechanism while eliminating the complexity of assembling and coordinating multiple separate components during installation.
Solution Approach 2:
The integrated fastening unit serves multiple functions simultaneously: the eccentric provides height adjustment, the overall structure provides mechanical fastening, and the unified design simplifies installation. This multi-functionality in a single component resolves the contradiction between adaptability and complexity.
2Reliability
If a complex multi-step fastening process is used to ensure secure attachment, then reliability of fastening is improved, but ease of operation deteriorates
Solution Approach 1:
The fastening unit is pre-assembled as a complete integrated unit before installation. All components (eccentric, mandrel, cap) are already in their correct positions and configurations, so during installation only a single insertion and rotation action is needed. This preliminary preparation maintains reliability while dramatically improving ease of operation.
3Device complexity
If traditional fastening devices without integrated holding elements are used, then device complexity is reduced, but reliability of preventing object detachment deteriorates
Solution Approach 1:
The holding element is merged with the fastening unit as an integrated component rather than a separate element. This combination maintains simplicity in the number of components to install while ensuring reliable prevention of object detachment through the unified structure that combines fastening and holding functions in one piece.
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 enables reliable, simple, and secure fastening of objects to walls with minimal steps, ensuring precise horizontal alignment and easy height adjustment, reducing the risk of the object falling and simplifying the attachment process, especially for heavy objects like extractor hoods.
Implementation Method 1
the connecting element is an eccentric
Data Source
Figure 1
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Figure 5~6
AI summary
The invention relates to a fastening device for fastening an object to a wall (W), which fastening device comprises a fastening element (26), a bearing element for bearing against the wall (W), and a holding element (21) at least for holding at least part of the object, and a passage opening (22), which extends at least through the holding element (21) and the bearing element (20) for enabling the fastening element (26) to pass through. The fastening device (2) is characterized in that the bearing element (20) and the holding element (21) are connected to one another by way of a connecting element (23), in that the holding element (21), the connecting element (23), and the bearing element (20) combined are a one-piece fastening unit (25), and in that the connecting element (23) is an eccentric. The invention further relates to a fastening system (27) having a fastening device (2).