Device for fastening a table top on a substructure
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Solution Overview
Problem
The variability in substructure types, shapes, and sizes requires table tops with matching drilling patterns, leading to high inventory costs and logistical complexities for manufacturers, and existing assembly methods are either costly or require specialized machinery and personnel.
Innovation Solution
The underside of table tops features slots or grooves that align with fastening holes, allowing self-tapping or metric screws to secure directly into these slots, eliminating the need for drilling and enabling compatibility with various fastening crosses without the need for multiple drilling patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If table tops are manufactured with different drilling patterns to match various substructures, then compatibility with different substructures is improved, but inventory costs and manufacturing complexity increase
Solution Approach 1:
The patent applies universality by designing a single table top with a universal slot pattern that can accommodate multiple different fastening crosses and substructures. Instead of manufacturing different table top variants with different drilling patterns, one universal design serves multiple functions and matches various substructure types, thereby reducing inventory complexity while maintaining adaptability.
Solution Approach 2:
The patent segments the fastening function by separating the table top from the fastening cross. The table top contains slots that can align with holes in different fastening crosses, allowing the fastening function to be segmented into the table top structure and the removable fastening cross, which enables compatibility with various substructures without requiring different table top designs.
2Manufacturing precision
If table tops are drilled during assembly to match specific substructures, then precise fitting is improved, but assembly difficulty and equipment requirements increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring the table top with slots during table top manufacturing, rather than drilling during assembly. This preliminary preparation of the slot pattern enables precise fitting to be achieved in advance, eliminating the need for complex drilling operations during assembly and reducing equipment requirements at the assembly stage.
3Ease of manufacture
If adhesive bonding is used to attach table tops to substructures, then assembly simplicity is improved, but bond durability under varying conditions deteriorates
Solution Approach 1:
The patent replaces the chemical bonding mechanism (adhesive) with a mechanical fastening system. Instead of relying on adhesive bonds that fail under varying temperature and humidity conditions, the invention uses mechanical fasteners (screws through slots into fastening crosses) that provide durable, reliable attachment that is not sensitive to environmental conditions, while still maintaining assembly simplicity.
Data Source
AI summary
The present invention relates to a device for fastening a table top on a substructure which comprises a fastening means which can be screwed to the underside of the table top, in particular a fastening means with a fastening cross, fastening plate or the like, on which the table top rests, wherein said fastening means has a defined pattern of holes with a plurality of holes or mounts for fastening screws, which can be plugged through said holes in each case and by way of which the fastening means is screwed to the table top. According to the invention, the table top (10) has slots (11) or grooves which are made in its underside and run such that, when the table top is placed in position on the fastening means, in particular the fastening cross, they coincide with the holes (20) or mounts of the fastening means, in particular of the fastening cross (17), wherein fastening screws which can be screwed into the table top (10) in each case in the region of the slots (11) or grooves are provided.